Item 1. Business

Overview

Enzo Biochem, Inc. (the “Company” “we”, “our” or “Enzo”) is an integrated diagnostics, clinical lab, and life sciences company focused on delivering and applying advanced technology capabilities to produce affordable reliable products and services that enable our customers to meet their clinical needs. We provide advanced biotechnology solutions to the global community as affordable and flexible quality products and services. We develop, manufacture and sell our proprietary technology solutions and platforms to clinical laboratories, specialty clinics, and researchers globally. Enzo’s structure and business strategy represent the culmination of years of extensive planning and work.  The Company has the unique ability to offer low cost, high performance products and services for diagnostic testing, which ideally positions us to capitalize on the reimbursement pressures facing diagnostic labs. Our pioneering work in genomic analysis coupled with our extensive patent estate and enabling platforms have positioned the Company to continue to play an important role in the rapidly growing molecular medicine marketplaces.

Enzo develops low cost diagnostic platform products and related services. Our platform development includes automation-compatible reagent systems and associated products for sample collection and processing through analysis. We develop affordable products and services to improve healthcare, one of the greatest challenges today. Enzo combines over 40 years of expertise in technology development with assay development capabilities and diagnostic testing services to create high performance, cost-effective, and open assay solutions. The ability to combine these assets in one company is unique. With our strong intellectual property portfolio integrated with assay development know-how, production, distribution, validation and services capabilities, we have enabled sustainable products and services for a market that is facing increasing pressure in costs and reimbursement.

Enzo technology solutions and platforms and unique operational structure are designed to reduce overall healthcare costs for both government and private insurers. Our proprietary technology platforms reduces our customers’ need for multiple, specialized instruments, and offer a variety of high throughput capabilities together with a demonstrated high level of accuracy and reproducibility. Our genetic test panels are focused on large and growing markets primarily in the areas of personalized medicine, women’s health, infectious diseases and genetic disorders.

For example, our GENFLEX R platform is a high-throughput, automated, and scalable instrument for processing molecular diagnostics tests within a clinical production setting. While initially focused on COVID-19 and Women’s Health assays, it can lead to the development of an entire line of molecular products that can allow laboratories to offer a complete menu of services for this $7 billion plus growing market at a cost that allows them to enjoy an acceptable margin. These products include testing sample collection, molecular, and antibody tests, as well as instrumentation, all on a global basis. Our solutions provide tools to physicians, clinicians and other healthcare providers to improve detection, treatment and monitoring of a broad spectrum of diseases and conditions. In addition, reduced patient to physician office visits translates into lower healthcare processing costs and greater patient services.

In the course of our research and development activities, we have built a substantial portfolio of intellectual property assets, comprised of 443 issued and in-licensed patents worldwide and 61 pending patent applications, to date, along with extensive enabling technologies and platforms.

Operating Segments

We are comprised of three interconnected operating segments which have evolved out of our core competencies involving the use of nucleic acids as informational molecules and the use of compounds for immune modulation and which have been augmented by previous acquisitions of a number of related companies. Financial information by geographic area and business segments for the fiscal years ended July 31, 2022, 2021 and 2020 is located in Note 16 – Segment Reporting in the Notes to Consolidated Financial Statements. During fiscal years 2020 through 2022 we had a third operating segment, Enzo Therapeutics, which is included as a separate segment in Note 16.

Below are brief descriptions of each of our operating segments:

Enzo Clinical Lab is a clinical reference laboratory providing a wide range of clinical services to physicians, medical centers, other clinical labs and pharmaceutical companies. The Company believes having a Clinical Laboratory Improvement Amendments of 1988 (“CLIA”) certified and College of American Pathologists (“CAP”) accredited medical laboratory located in New York provides us more access to the clinical marketplace. Enzo Clinical Labs offers an extensive menu of molecular and other clinical laboratory tests and procedures used in patient care by physicians to establish or support a diagnosis, monitor treatment or medication, and search for an otherwise undiagnosed condition. Our laboratory is equipped with state-of-the-art communication and connectivity solutions enabling the rapid transmission, analysis and interpretation of generated data. We operate a full service clinical laboratory in Farmingdale, New York, a network of over 30 patient service centers throughout New York, New Jersey and Connecticut, two free standing “STAT” or rapid response laboratories in New York City and Connecticut, an in-house logistics department, and an information technology department. Under our license in New York State, we are able to offer testing services to clinical laboratories and physicians nationwide.

Enzo Life Sciences manufactures, develops and markets products and tools for clinical research, drug development and bioscience research customers worldwide. Underpinned by broad technological capabilities, Enzo Life Sciences has developed proprietary products used in the identification of genomic information by laboratories around the world. Information regarding our technologies can be found in the “Core Technologies” section. We are internationally recognized and acknowledged as a leader in the development, manufacturing validation and commercialization of numerous products serving not only the clinical research market, but also the life sciences markets in the fields of cellular analysis and drug discovery, among others. Our operations are supported by global operations allowing for the efficient marketing and delivery of our products around the world.

Enzo Therapeutics is a biopharmaceutical venture that has developed multiple novel approaches in the areas of gastrointestinal, infectious, ophthalmic and metabolic diseases, many of which are derived from the pioneering work of Enzo Life Sciences. Enzo Therapeutics has focused its efforts on developing treatment regimens for diseases and conditions for which current treatment options are ineffective, costly, and/or cause unwanted side effects. This focus has generated a clinical and preclinical pipeline, as well as more than 109 patents and patent applications.

The Company’s primary sources of revenue have historically been from the clinical laboratory services provided by Enzo Clinical Lab to the healthcare community and Enzo Life Sciences product revenues from customers worldwide. The following table summarizes the sources of revenues for the fiscal years ended July 31, 2022, 2021 and 2020 (in thousands except percentages):

Markets

Clinical diagnostics

The U.S. clinical diagnostics market has been reported by industry sources to be greater than $25 billion per year nationally and over $60 billion worldwide. It is comprised of a broad range of tests based on clinical chemistry, microbiology, immunoassays, genomics, proteomics, gene expression profiling, blood banking, and cancer screening assays through histology as well as newer bodily fluid based approaches.

Many of these tests employ traditional technologies such as cell culture technologies.

Immunoassays are based on the use of antibody biomarkers directed against a specific target or antigen to detect that antigen in a patient sample. Cell culturing techniques involve the growth, isolation and visual detection of the presence of a microorganism and often its susceptibility to FDA approved drugs.

There are several drawbacks to these more traditional technologies. Immunoassays do not allow for early detection of diseases because they require minimum levels of antigens to be produced by the microorganism in order to be identified. These levels vary by microorganism, and the delay involved could be several days or several months, as seen in HIV/AIDS. Cell cultures are slow, labor intensive and not amenable to all microorganisms. For example, gonorrhea and chlamydia are difficult to culture.

Molecular diagnostics have many advantages over traditional technologies. Since gene-based diagnostics focus on the identification of diseases at the molecular level, they can identify the presence of the disease at its earliest stage of manifestation in the body. These tests provide results more rapidly, are applicable to a broad spectrum of microorganisms and can easily be automated in a multiplex platform.

Several advances in technology are accelerating the adoption of gene-based diagnostics in clinical laboratories. These advances include high throughput automated formats that minimize labor costs, non-radioactive probes and reagents that are safe to handle, and amplification technologies that improve the sensitivity of such diagnostics.

According to industry sources, the market for molecular diagnostic tools, assays and other products is currently more than $7 billion per year, and is acknowledged as one of the fastest growing segments in the in-vitro diagnostics industry, growing at more than twice the rate of traditional diagnostics. Contributing to this growth are, among other factors:

Diagnostic Products

There is a large and growing global demand by biomedical and pharmaceutical companies for research and diagnostic tools that both facilitate and accelerate the generation of biological information. This demand can be met by gene and protein target-based diagnostics for which a variety of formats and tools have been developed that enable researchers to study biological pathways. These tools can identify mutations in gene sequences and variations in gene expression levels that can lead to disease, or they can quantify biomarkers that provide insight into disease and potential therapeutic solutions. These techniques use instruments such as DNA sequencing and genotyping equipment, microarrays, fluorescent microscopes, high content screening platforms, flow cytometers and plate readers. Common among these instruments is the need for reagents that allow the identification, quantification and characterization of interactions of specific genes or nucleic acid sequences, proteins, cells, and other cellular structures and organelles.

We believe this market will continue to grow as a result of:

Therapeutics

We believe our core technologies have broad diagnostic and therapeutic applications. Historically, we focused our efforts on discovering how best to treat pathologies associated with growth or metabolic control and immune-mediated diseases, including autoimmune diseases and cancers. Although the causes of disorders such as Crohn’s disease, autoimmune uveitis and non-alcoholic steatohepatitis (NASH) remain unknown, various features suggest immune system involvement in their pathogenesis. In years past, we tested technologies we believed could serve as enabling platforms for developing medicines that genetically target and inhibit viral functions, as well as medicines that regulate the immune response. In addition to such past efforts to develop therapeutic products, we continue to capitalize on our nucleic acid labeling, target and signal amplification, and detection technologies and intellectual property to develop diagnostic and monitoring tests for various diseases. We believe our expertise in developing and securing approvals of novel diagnostic platform technologies may enable others to shorten the development time for therapeutic applications.

Strategy

Our strategy is focused on offering quality and affordable testing solutions to high volume market segments where reimbursement pressures have caused challenges for our customers within these segments. Our customers need cost of goods savings. To achieve this, we have taken common workflows and applied Enzo’s innovative technical expertise to each platform part in order to achieve integrative cost effective solutions.

Our objective is to develop and manufacture high value, affordable and reliable diagnostic products and services using our proprietary technologies to allow our customers to meet their clinical needs. Our proprietary technology platforms, if successful, will alter the existing business models and improve economics across the healthcare industry. Our strong intellectual property estate provides freedom to operate and compete in a rapidly growing molecular diagnostic healthcare marketplace.

We believe our expertise in developing and marketing proprietary technology platforms uniquely positions Enzo to provide products and services that will change the fundamental relationship between molecular diagnostic companies and clinical laboratories. Our technology platforms will provide economic and market optionality to use Enzo’s products and services for margin improvement. As such, clinical laboratories will be able to enter and compete in markets that until now have been out of reach due to poor economic standing caused by high costs of reagents and equipment rental arrangements from molecular diagnostic companies coupled with lower reimbursement from governmental payers and commercial healthcare insurers.

Our objective allows clinical laboratories to purchase low cost reagents and kits to be run on open system platforms already in use in their labs, or to use Enzo as a low cost reference laboratory. Enzo’s integrated business model not only provides benefits to clinical laboratories, but also to insurance providers who will benefit from more clinical laboratories being able to compete for testing services with national laboratories.

In addition to selling these highly effective and compatible platforms and their assays, we are positioning ourselves as a reference lab for independent labs nationwide primarily by offering lower cost reference services.

Our commitment to utilizing our proprietary technologies to develop clinically relevant diagnostics, while helping to relieve the cost pressures that independent laboratories are bearing is core to our strategy.  It underscores the progress we are achieving in our strategy of utilizing Enzo’s integrated structure to produce diagnostic products and services relevant to today’s dynamic and challenging healthcare marketplace.

By developing a broad technology base, we are positioned for a robust flow of products and services that will provide medically relevant, cost effective solutions easily adaptable to the workflow of the clinical laboratory, and its ability to do so is contingent on several factors, including: 

Increase investment in research and development & product development

We are increasing our research and development efforts to develop new leading edge solutions in the rapidly growing molecular diagnostic marketplace, as well as in the important segments of Anatomical Pathology, Cytology and Immunohistochemistry.

Our development activities are directed to each step of the clinical testing process, from sample collection and processing through analysis. Our goal is to manufacture the components required for each step in the diagnostic process for integration into an open platform. Enzo’s system solutions will enable clinical laboratories to more effectively participate in the diagnostics market where declining reimbursements and rigid costs from suppliers currently prevail.

Current technology platforms under development include:

Enzo’s proprietary platforms and the related assays developed can provide more sensitive diagnostic information at lower costs than many other currently marketed tests. The Company designs its products to be able to work with lower specimen volume which not only allows the laboratories to run more tests from of a single clinical specimen, but also may reduce the need for patients to submit additional samples, thus reducing unnecessary physician visits.  The Company’s newly approved assays are the forerunners of a comprehensive line of diagnostic solutions under development by Enzo to address the critical needs of clinical laboratories that are often locked into closed-system contracts with molecular diagnostics suppliers which, with ever-declining reimbursements, reduce or even eliminate operating margins.

New Molecular Diagnostic platform

Enzo has developed and validated a new molecular diagnostics platform, GENFLEX^® Molecular System, which, unlike current closed system platforms, has an open access feature, flexibility and compatibility with a full clinical workflow. It is believed to be uniquely characterized as an automated, clinically compatible, open platform that operates with multiple reagents and sample types allowing for cost savings and Laboratory Developed Tests (LDTs), while remaining comparable with FDA-approved products. It has been optimized to fully address existing clinical work flows while also providing the flexibility to develop and incorporate new work flows. The clinical diagnostic industry is challenged by declining reimbursements and high reagent costs associated with “closed systems” diagnostic platforms that prohibit the use of third-party reagents. The new Enzo “open system” molecular diagnostic platform is compatible with existing sample collection devices. It runs on a standardized, simplified sample processing (fluid handling and nucleic acid isolation) and amplification/detection workflow, and was designed to provide high performance and adaptable solutions to existing lab workflow, while addressing the critical need for lower cost solutions. The platform is compatible with a sample input capacity up to 1 ml of whole blood, serum, plasma, urine, gynecological and non-gynecological specimens, and offers high throughput, 96-well plate molecular testing in less than four hours run time. At full capacity, the platform can process as many as three 96-well plates (268 samples total) in about eight hours for most of the company’s tests. Using our proven AMPIPROBE^® technology, Enzo has developed multi-target viral load assays and multi-target DNA-based women’s health assays optimized for the new automated, open system platform, and is currently in the process of developing a screening assay for oncogenic forms of HPV. The platform has current compatibility with more than sixteen (16) Enzo-developed clinical tests in the areas of sexual health (STIs), women’s health, virology, upper respiratory infections, plus others, with a built-in capacity to run new or esoteric laboratory developed tests.

Continue to commercialize new platforms for molecular diagnostics via multiple channels

We have developed several enabling platform technologies that may have utility in the development of a new generation of molecular diagnostic products designed to meet the needs of the current clinical marketplace. Our lead solution is the AMPIPROBE^® platform, which is our proprietary target amplification and detection technology that has been shown to require substantially less starting material than conventional methods such as polymerase chain reaction (PCR) based products. With the GENFLEX^® platform it may be possible to increase the number of analytes that can be assayed from a single clinical specimen, which in turn may reduce the need for physicians to recall patients to obtain additional clinical material for testing. In addition by increasing the number of analytes tested in a single clinical preparation, the GENFLEX^® platform may be able to produce diagnostic tests at a significantly lower cost than conventional assays. Moreover, the need for less starting material may also lead to diagnostic tests with improved sensitivity, thus allowing detection of certain analytes present in minute quantities that are below the limit of detection of conventional assays. With several GENFLEX^® assays already developed and validated, we continue to invest in the development of a consistent pipeline of additional assays.

The FLOWSCRIPT^® Gene Expression platform is another unique technology translation offering additional alternatives to common molecular assays. We have already introduced the first product using our FLOWSCRIPT^® platform technology for the identification of gene expression in clinical samples specifically detection of mRNA from Human papillomavirus (HPV) oncogenes E6 and E7. Overexpression of these HPV oncogenes promotes the growth of malignant cells, leading to the development of cervical cancer. The FLOWSCRIPT^® technology platform is a proprietary, flow cytometry-based molecular detection system for the multiplex analysis of cell function and identity that was developed by cross-functional teams at Enzo. The HPV E6/E7 assay is the first product to utilize this novel platform. Analysis is performed on a small volume of a liquid cytology specimen and can thus be easily incorporated as a reflex test measure following abnormal Pap smear results. The assay, and the platform on which it is based, allows for the simultaneous analysis of several different genes expressed in every cell in a given sample. In this manner, it is possible to produce clinically relevant data at the single cell level. Unlike other assays that study mRNA expression, FLOWSCRIPT^® assays are performed using a homogeneous system that eliminates washing steps that can reduce fluctuation of results. Additionally, the assay’s use of an external control improves run-to-run consistency. As a result, both hands on time and the number of steps are reduced, allowing for improved economics. In data presented at a 2015 pathology conference in Italy, Enzo’s assay was shown to produce reliable and consistent results near the limit of assay detection. Furthermore, Enzo anticipates using this platform for a multitude of applications such as study of other cancers and the evaluation of an individual’s immune state as well as products targeted to the drug development market, among others.

The FLOWSCRIPT^® platform is used to help guide providers in assessing the risk of progression to cervical cancer and whether colposcopy or follow-up screening should be the preferred course of action. This assay demonstrates Enzo’s commitment to utilizing our proprietary technology and bringing forward clinically relevant diagnostics that can inform patient and physician decision-making with potential to reduce spending associated with advanced stage disease. Moreover, it is indicative of how well we are executing our strategy of utilizing our integrated structure to produce products that are relevant to today’s evolving healthcare marketplace.

Expand platform development to other important, but financially stressed, diagnostic areas

Enzo’s POLYVIEW PLUS^® Enhanced Immunohistochemistry platform offers solutions within the area of Anatomical Pathology through optimized assays for clear, consistent immunohistochemistry and in situ hybridization results moving Pathology to the next generation. This platform has been used in conjunction with validated biomarkers for detecting cancers and their progression especially in the areas of women’s health.

Exploit our marketing and distribution infrastructure

Enzo Life Sciences maintains relationships with academic and commercial groups worldwide in sourcing and commercializing high value reagents developed by leading researchers. We have also developed a sales and marketing infrastructure to directly service our end users such as clinical laboratories, researchers and pharmaceutical companies, while simultaneously positioning the Company for targeted product line expansion. Our global sales, marketing, manufacturing, product development and distribution infrastructure is integrated and consolidated as a single global business. Enzo Life Sciences operates, under its own name, worldwide through wholly owned subsidiaries (in USA, Switzerland, Benelux, Germany, and the UK), a branch office in France and a network of third party distributors in most other significant markets worldwide. Our comprehensive product portfolio allows us to deliver integrated solutions to basic researchers, drug developers and clinical researchers around the globe. Our research allows us to provide solutions in all key research areas including: Genomics, Cell Biology, Biomarker Detection, and in a multitude of applied research markets including: Bioprocess, Personal Care, Cancer Research, and Neuroscience to name a few.

Expand and protect our intellectual property estate

Since our inception, we have followed a strategy of creating a broadly encompassing patent position in the life sciences and therapeutics areas. We have made obtaining patent protection a central strategic policy, both with respect to our proprietary platform technologies and products, as well as broadly in the areas of our research activities. During fiscal 2022 and 2021, we were issued 15 and 21 patents, respectively, expanding our patent estate in the area of nucleotides, amplification, labeling and detection, among others.

Product Development and Pipeline

Enzo is committed to delivering a robust line of products and services that will provide medically relevant, cost effective solutions that are easily adaptable to the workflow of clinical laboratories.  The Company’s integrated Life Sciences-Clinical Labs structure continues to be instrumental in its ability to seamlessly develop and advance products from innovation and manufacturing in our life sciences group to validation and commercialization through our clinical laboratory.

With the coronavirus pandemic affecting people on a regional and global basis, the Company launched a rapid response to market demand for COVID-19 testing products and services. Enzo is delivering testing and lab services to schools, institutions, urgent care facilities, and core multi-state network of medical practices. Furthermore, the Company’s GENFLEX^® platform received Emergency Use Authorization (EUA) from the Food and Drug Administration (FDA) in July 2020 for its proprietary product for the detection of SARS-CoV-2. FDA EUA demonstrates the Company’s unique integrated in-house capability in developing low cost, high throughput sensitive detection platforms for COVID-19 as well as other diseases. The Authorization was for a comprehensive platform enabling rapid scalability of testing, including internal use within Enzo’s Clinical Lab as well as for the sale of instrumentation, consumables, and reagents to other diagnostic testing customers. The Authorization includes three diverse platforms: Enzo’s proprietary GENFLEX^® automated high-throughput platform, a medium-throughput industry standard platform, and Enzo’s manual workflow. Launching a COVID-19 test on its proprietary GENFLEX ™ molecular diagnostics platform serves as representative of the Company’s capabilities as it develops other tests on the platform including an upper respiratory panel, STDs and expanded women’s health panels. The Company is well positioned to replicate this success in response to new emerging health issues and needs, including, but not limited to, upper respiratory, sexually transmitted diseases, viral load, and women’s health.

The Company’s development pipeline includes an extensive line of assays for detection of numerous women’s health infectious agents, particularly sexual health infections (STIs) as well as for the identification of other pathogens. The Company is also developing a proprietary line of products designed to aid pathologists in differentiating the characteristics of various tumors from biopsy specimens. The Company’s molecular products and services are targeted at a market currently estimated to be in excess of $7 billion annually.

Since 2015 we have had 10 submissions and approvals on lab developed tests (LDTs) from the New York State Department of Health for clinical analysis based on Enzo’s proprietary technology platforms, and four EUAs or EUA expansions by the FDA. The comprehensive program includes 16 analytes and multiple specimen source and collection devices.

We have received approval of AMPIPROBE^® HCV Assay for the quantitative detection of Hepatitis C and AMPIPROBE^® HBV Assay for the quantitative detection of Hepatitis B. These assays are based on the proprietary nucleic acid amplification and detection technology platform which was the first in a line of products to be developed at Enzo to address the critical needs of the molecular diagnostics market and serves as validation of Enzo’s unique business strategy and structure. We were granted final approval of AMPIPROBE^® Candidiasis Assay. This multiplex assay is designed to identify the presence of five of the most common species of Candida from a single vaginal swab. Industry estimates put the number of tests performed for the identification of Candida at over 10 million per year in the US alone. It is also estimated that over 70% of women will develop a Candida infection during their reproductive lifetime. While an independent assay, it will also serve as a component of a comprehensive women’s health panel. We were granted final approval for three additional women’s health related molecular diagnostic tests for use with the Company’s versatile and economic AMPIPROBE^® platform. Approval was given for a real-time PCR-based method for qualitative detection of Neisseria gonorrhea, Chlamydia trachomatis and Trichomonas vaginalis in vaginal swab specimens. The Company’s AMPIPROBE^®-based pipeline includes an extensive line of assays for identification of additional women’s health infectious diseases as well as for the quantification of viral load in serum or plasma specimens. This proprietary technology platform is the foundation of our ever-increasing line of medically relevant, cost-effective and easily adaptable solutions for clinical laboratories. We were granted conditional approval of another women’s health infectious disease diagnostic panel, which when combined with the Company’s previously approved panels, makes for one of the most comprehensive, efficient  and affordable diagnostic products and services on the market today.  A variety of infections, including sexually transmitted ones, are detected from a single vaginal swab collection via the Company’s proprietary, versatile and cost-effective AMPIPROBE^® platform. In July 2019, we announced the New York State Health Department approval for AmpiProbe Neisseria gonorrhea (NG) and Chlamydia trachomatis (CT) DNA tests with oral (pharyngeal) and rectal specimens. This expands the Company’s menu allowing Enzo to provide one of the most comprehensive panels for STI testing for not only women but also men, who represent a rapidly growing segment for such testing. These assays are an important addition to Enzo’s expanding line of women’s health products, while also helping to solidify Enzo’s position as a leading full service women’s health lab.

In October 2022, Enzo launched a new series of AMPIVIEW products for gene expression analysis relying on Enzo developed LoopRNA™ technology. This suite of products will be sold through our Enzo Life Sciences division with the first products focused on analysis of HPV and SARS-CoV-2.  These tissue pathology products complement Enzo’s current portfolio of oncology and infectious disease products and services. 

In April 2022, Enzo received  approval from the New York State Department of Health  for its AMPIPROBE^® HPV test. The AMPIPROBE^® HPV test is Enzo’s PCR-based test designed to detect 14 high-risk human papillomavirus (HPV) variants. Also in 2022, Enzo received additional approvals from the New York State Department of Health for our AMPIPROBE® CT/NG/TV tests, and full approval from the  New York State Department of Health for our AMPIPROBE® HBV viral load assay. These open platform tests will be run on the GENFLEX® system but also can be run on any open molecular system. 

In July 2021, we received an expansion of our FDA EUA for the rapid extraction method on our proprietary test system for the detection of coronavirus SARS-CoV-2 including the genetic variants that are now proliferating globally. The EUA enables laboratories to immediately use our faster extraction process to reduce the time by over one hour, or more than 25%, enabling more test runs on a single instrument. The rapid extraction method can be used on platforms including our proprietary GENFLEX^® automated high-throughput platform, Qiagen’s QIAsymphony^® SP lower-throughput platform and our manual workflow. The AMPIPROBE^® SARS-Cov-2 Test System includes three components: sample collection, AMPIXTRACT™ SARS-CoV-2 Extraction Kit for sample processing, and AMPIPROBE^® SARS-CoV-2 Assay Kit for detection and analysis.

In April 2021, the FDA cleared our AMPICOLLECT™ Sample Collection kit (manufactured under GMP) for distribution under EUA. The AMPICOLLECT™ Sample Collection kit is now available for sample collection for COVID-19 testing protocols in the United States. Our sample collection kit has been shown to meet the FDA’s policy standard as outlined in “Enforcement Policy for Viral Transport Media during the Coronavirus Disease 2019 (COVID-19) Public Health Emergency.” The AMPICOLLECT™ kit is not only authorized for use with our proprietary GENFLEX^® molecular diagnostic platform, but can also be used for sample collection with other PCR-based molecular diagnostic platforms or antigen-based testing platforms that require the collection of upper respiratory specimens.

In January 2021, we received an expansion of our EAU from the FDA authorizing the use of pooled samples containing up to five individual swab specimens with our AMPIPROBE^® SARS-Cov-2 Test System utilizing tests on three different platforms including our proprietary GENFLEX^® automated high-throughput platform.

In November 2020, we began the commercial launch of a small portable microplate reader for use with the company’s immunoassays and, ultimately, molecular diagnostics, providing new opportunities in point-of-care medicine. This affordable device enables us to offer a complete solution to academic, CRO, and industrial customers.

In October 2020, we launched GoTestMeNow™, an online platform that enables consumers to directly order physician-authorized laboratory testing. GoTestMeNow™ can be used to access necessary medical tests without the need for a doctor’s office visit. Specimen collection and testing is accomplished through a network of patient service centers in the New York/New Jersey metro area. Consumers can obtain results through a secure online portal. The GoTestMeNow™ direct-to-consumer laboratory testing capability will initially support access to COVID-19 molecular and antibody testing, and the platform will be expanded to offer access to a broad range of additional tests in the near future.

In July 2020, we received an EUA from the FDA for our proprietary product for the detection of Coronavirus SARS-CoV-2. The EUA enables other laboratories to use this product with three diverse platforms without requiring further validation. These platforms include our proprietary GENFLEX^® automated high-throughput platform, Qiagen’s QIAsymphony^® SP lower-throughput platform and Enzo’s manual workflow. The AMPIPROBE^® SARS-Cov-2 Test System includes three components: sample collection, AMPIXTRACT™ SARS-CoV-2 Extraction Kit for sample processing, and the AMPIPROBE^® SARS-CoV-2 Assay Kit for detection and analysis.

In February 2020, we received New York State approval for our CT/NG/TV tests using liquid-based cytology sample collection on our proprietary GENFLEX^® platform. GENFLEX^® is a commercially available sample-to-result molecular diagnostic platform that includes sample collection, sample processing, amplification and detection. The GENFLEX^® open system delivers high-throughput, high capacity, workflow efficiency and flexibility at a much greater level of affordability than existing systems. The platform will provide a cost-effective, comprehensive menu of molecular diagnostic products and services and highlights our continued ability to deliver high performance, open, flexible, adaptable and cost-effective products, devices and services. Compared favorably to all other proprietary platforms dominating the diagnostic testing market, our GENFLEX^® platform offers 30-50% cost-savings over current closed systems and addresses the $450 million annualized global CT/NG/TV diagnostic market as well as the $1.3 billion Women’s health market. Extensions of the GENFLEX^® platform, which we are currently developing, could eventually address the entire $7 billion molecular diagnostic market.

In January 2018, we validated p16, a marker used extensively as a key diagnostic and prognostic biomarker of several cancers. Enzo’s validated p16 provides clear detection of tissue abnormalities in the field of cancer diagnostics, including cervical cancer’s progression. Additional compounds validated include in-situ HPV probes and antibody markers such as CD138, Ki-67, p53, Vimentin, and prostate cancer markers. P16 complements our POLYVIEW^® immunochemistry detection. With current mounting cost and reimbursement pressures, Enzo’s new p16 test provides a highly cost-effective alternative. Other p16 tests on the market have of late become unaffordable as a result of increasing reagent costs outweighing average reimbursements. When p16 is used in combination with Enzo’s POLYVIEW^® detection system’s reduction of false-positives, the economics are substantially enhanced. This and other similar compounds comprise a $200 million market.

Products in the Company’s development pipeline include an extensive line of assays for detection of numerous women’s health infectious agents as well as for use in the identification of pathogens for other markets.  The Company also reported that it expects to roll-out a line of products designed to aid pathologists in distinguishing the characteristics of various tumors from biopsy specimens using technology developed by Enzo scientists. 

Enzo is committed to delivering a robust line of products and services that will provide medically relevant, cost effective solutions that are easily adaptable to the workflow of clinical laboratories.  The Company’s integrated Life Science and Clinical Lab structure continues to be instrumental in its ability to seamlessly develop and advance products from innovation and manufacturing in our life sciences group and validation and commercialization through our clinical laboratory. Our product development activity and pipeline include the following products:

Core Technologies

We have developed a portfolio of proprietary technologies with a variety of research, diagnostic and therapeutic applications.

Gene analysis technology

All gene-based testing is premised on the knowledge that DNA forms a double helix comprised of two complementary strands that match and bind to each other. If a complementary piece of DNA (a probe) is introduced into a sample containing its matching DNA, it will bind to, or hybridize, to form a double helix with that DNA. Gene-based testing is carried out by:

We have developed AMPIPROBE^® as a broad technology base for the labeling, detection, amplification and analysis of nucleic acids which is supported by our significant proprietary position in these fields. This and other proprietary technologies are the building blocks of our GENFLEX^® Molecular System and other molecular diagnostics platforms.

Amplification

In the early stages of infection, a pathogen may be present in very small amounts and consequently may be difficult to detect. Using DNA amplification, samples can be treated to cause a pathogen’s DNA to be replicated, or amplified, to detectable levels. We have developed a proprietary amplification process for multicopy production of nucleic acids, as well as proprietary techniques for amplifying the signals of our probes to further improve sensitivity. Our amplification technologies are particularly useful for the early detection of very small amounts of target DNA. We have also developed isothermal amplification procedures that can be performed at constant temperatures; unlike polymerase chain reaction (PCR) the most commonly used method of target nucleic acid amplification. These platform technologies could thus potentially lead to assays with advantages over PCR-based tests which require expensive heating and cooling systems or specialized heat-resistant enzymes. Moreover, our AMPIPROBE^® Nucleic Acid Amplification Platform, because of the reduced amount of starting material needed for analysis, may lead to a next-generation of molecular diagnostics that can impart higher sensitivity at a lower cost than currently available assays.

Flow Cytometry

We have developed and launched our first product using our proprietary FLOWSCRIPT^® platform using flow cytometry to analyze messenger RNA (mRNA) transcript expression in individual cells in a mixed cell population. By studying whether a gene or a set of genes is turned on or off, it is possible to obtain clinically relevant information at the single cell level. Our first product, the FLOWSCRIPT^® HPV E6/E7 Assay, examines the levels of E6/E7 mRNA transcripts from multiple high risk types which account for over 95% of cervical cancers. We are planning to develop and introduce other products based on this platform technology in the future for applications such as immune-mediated disorders, metabolic disorder patient monitoring, and other cancers.

Non-Radioactive Labeling and Detection

Traditionally, nucleic acid probes were labeled with radioactive isotopes. However, radioactively labeled probes have a number of shortcomings; they are unstable and consequently have a limited shelf life and they are potentially hazardous, resulting in restrictive licensing requirements and safety precautions for preparation, use and disposal. Finally, radioactive components are expensive. Our technologies permit gene analysis without the problems associated with radioactively labeled probes and are adaptable to a wide variety of formats.

Formats

There are various processes, or formats, for performing probe-based tests. In certain formats, the probe is introduced to a target sample affixed to a solid matrix; in others, the probe is combined with the sample in solution (homogeneous assay). Solid matrix assays include: in situ assays in which the probe reaction takes place directly on a microscope slide; dot blot assays in which the target DNA is fixed to a membrane; and microplate and microarray assays in which the DNA is fixed on a solid surface, and the reaction can be quantified by instrumentation.

 Clinical Laboratory Services

We operate a regional clinical laboratory that offers extensive diagnostic services to New York, New Jersey and Connecticut medical communities. As part of our ongoing strategic growth plan we have recently expanded service to Connecticut and other New England states. Our clinical laboratory testing is utilized by physicians as an essential element in the delivery of healthcare services. Physicians use laboratory tests to assist in the detection, diagnosis, evaluation, monitoring and treatment of diseases and other medical conditions. Clinical laboratory testing is generally categorized as clinical testing or anatomic pathology testing. Clinical testing is performed on body fluids, such as blood and urine. Anatomical pathology testing is performed on tissues and other samples, such as human cells. Many clinical laboratory tests are considered routine and can be performed by most commercial clinical laboratories.

Tests that are not routine and that require more sophisticated equipment and highly skilled personnel are considered esoteric tests and may be performed less frequently than routine tests.

We offer a comprehensive and broad range of routine esoteric, and molecular diagnostic clinical laboratory tests or procedures. These tests are frequently used in general patient care by physicians to establish or support a diagnosis, to monitor treatment or medication levels, or to search for an otherwise undiagnosed condition.

Our full service clinical laboratory in Farmingdale, New York contains an infrastructure that includes comprehensive information technology applications, logistics, client services and billing departments. We have a network of over thirty five strategically located patient service centers and a full service phlebotomy department. Patient service centers collect from patients the specimens as requested by physicians. We also operate two fully equipped STAT laboratories in New York City and Connecticut. A “STAT” lab has the ability to perform certain routine tests quickly and report results to the physician immediately.

Patient specimens are delivered to our laboratory facilities primarily by our logistics department accompanied by a test requisition form. These forms, which are completed by the ordering physician, indicate the tests to be performed and demographic patient information and in most instances are transmitted to us via EnzoDirect, our proprietary computer-based ordering and results delivery system. Once the information is entered into the laboratory computer system the tests are performed on the corresponding laboratory testing instrumentation and the results are uploaded primarily through an interface from the laboratory testing instrumentation or in some instances, manually entered into the laboratory computer system. Most routine testing is completed by early the next morning, and test results are reported to the ordering physician. These test results are either reported electronically via EnzoDirect to a physician office Electronic Medical Records (EMR) system or delivered by our logistics department directly to the ordering physicians’ offices. Physicians who request that they be called with a particular result are accordingly notified by our customer service personnel.

For fiscal years ended July 31, 2022, 2021 and 2020, respectively, approximately 70%, 74%, and 65% of the Company’s revenues were derived from the Clinical Laboratory Services segment. Revenues, net of contractual adjustment, from direct billings under the Federal Medicare program during the years ended July 31, 2022, 2021 and 2020 were approximately 14%, 15%, and 23%, respectively, of the clinical laboratory services segment’s total revenue. The contractual adjustment is an estimate that reduces gross revenue, based on gross billing rates, to amounts expected to be approved and reimbursed. We estimate contractual adjustment based on significant assumptions and judgments, such as the interpretation of payer reimbursement policies which bears the risk of change. The estimation process is based on the experience of amounts approved as reimbursable and ultimately settled by payers, versus the corresponding gross amount billed to the respective payers.

Other than the Medicare program, revenues from UnitedHealthcare and Oxford Health Plan represented approximately 21%, 22%, and 24%, respectively, of the Clinical Laboratory Services segment’s net revenue for the fiscal years ended July 31, 2022, 2021 and 2020. Revenues from Blue Cross Blue Shield represented approximately 11% and 13% of the Clinical Laboratory Services segment’s net revenues for the fiscal years ended July 31, 2022 and 2021, respectively.

At July 31, 2022 and 2021, approximately 59% of the Company’s net accounts receivable was derived from its clinical laboratory business. The Company believes that the concentration of credit risk with respect to the Clinical Labs accounts receivable is mitigated by the diversity of its third party payers that insure individuals. To reduce risk, the Company routinely assesses the financial strength of these payers and, consequently, believes that its accounts receivable credit risk exposure, with respect to these payers, is limited. While the Company also has receivables due from the Federal Medicare program, the Company does not believe that these receivables represent a credit risk since the Medicare program is funded by the federal government and payment is primarily dependent on our submitting the appropriate documentation.

Gross billings are based on a standard fee schedule we set for self-payers, all third party payers, including Medicare, health maintenance organizations (“HMO’s) and managed care providers and expanding institutional relationships with direct billing. We adjust the contractual adjustment estimate quarterly, based on our evaluation of current and historical settlement experience with payers, industry reimbursement trends, and other relevant factors. The other relevant factors that affect our contractual adjustment include the monthly and quarterly review of: 1) current gross billings and receivables and reimbursement by payer, 2) current changes in third party arrangements, and 3) the growth of in-network provider arrangements and managed care plans specific to our Company. The clinical laboratory industry is characterized by a significant amount of uncollectible accounts receivable related to the inability to receive accurate and timely billing information in order to forward it on to the third party payers for reimbursement, and the inaccurate information received from the covered individual patients for unreimbursed unpaid amounts.

Billing for laboratory services is complicated. Depending on the billing arrangement and applicable law, we must bill various payers, such as patients, insurance companies and the Federal Medicare Program, all of which have different requirements. In both New York and New Jersey, the law prohibits the Company from billing the ordering physician. Compliance with applicable laws and regulations, as well as internal compliance policies and procedures add further complexity to the billing process. We depend on the ordering physician to provide timely, accurate billing demographic and diagnostic coding information to us. Additional factors complicating the billing process include:

We incur significant additional costs as a result of our participation in Medicare, as billing and reimbursement for clinical laboratory testing is subject to considerable and complex and stringent federal and state regulations including those relating to coverage, billing and reimbursements. Future changes in regulations could further complicate our billing and increase our billing expenses. These additional costs include those related to: (1) complexity added to our billing processes and changes to our reimbursements; (2) training and education of our employees and customers; (3) compliance and legal costs; and (4) costs related to, among other factors, medical necessity denials and advance beneficiary notices. The Centers for Medicare & Medicaid Services or CMS establishes procedures and continuously evaluates and implements changes in the reimbursement process.

Diagnostic Products

We are a manufacturer of labeling and detection technologies from DNA to whole cell analysis. Enzo’s products are backed by innovative technology platforms and a deep patent portfolio.  With nearly 45 years of experience, Enzo continues to provide integrated solutions for drug development, pipeline basic research, drug discovery, quality control in drug development and diagnostics. Enzo Life Sciences offers a broad range of high-quality products to advance research including proteins, antibodies, peptides, small molecules, labeling probes, dyes, and kits.  Enzo operates in a highly competitive and price-sensitive marketplace and is repositioning itself by narrowing its product mix to concentrate on improved profitability, while also adding staff who are more experienced in operations. We have become a specialized assay supplier as part of our integrated strategic plan to deliver highly efficient, cost-effective assays for our own use and to sell to independent labs. With direct sales operations in the US, Switzerland, Germany, UK, France, and Benelux, Enzo Life Sciences also supports its products through a global network of dedicated distributors.

With a passion for genomics, Enzo was the first to develop products for non-radioactive labeling of nucleic acids. This technique was instrumental in the development of today’s genomic analysis market. Our pioneering research in genetic modification medicine was the first to recognize that nucleic acids could be used as therapeutics. Our innovations in the detection of nucleic acids in solutions and solid matrices led to the development of technology platforms such as hybrid capture, as well as fluorescent and chromogenic in situ hybridization. Enzo remains at the forefront of target amplification technologies critical in the detection of infectious agents, cancer markers, and genotyping. Our work in the genomic space has resulted in technologies in gene expression and immune system regulation, which opened the door for the well-known molecular diagnostics assays used today.

The products we produce and supply include small molecules, proteins, antibodies, peptides, probes, immunoassays, biochemical assays and custom services. Our comprehensive portfolio of high quality reagents and kits in key research areas are sold to scientific experts in the following fields:

We maintain the technology and products from acquired brands including Alexis, Biomol International, Assay Designs, and Stressgen. Enzo strategically uses these brands to complete our product portfolio, allowing us to offer complete solutions to researchers in all fields. These brands are complementary to our core expertise in genomics and molecular biology. The Company intends to maintain the rights to the acquired brands which have long product histories. The Company believes the emphasis on the Enzo Life Sciences brand will result in stronger and clearer brand awareness and allow the Company to execute the sale of higher value products and promote more products into the drug development, clinical research and diagnostic markets.

Axxora.com -“The Reagents Marketplace”, Thousands of Reagents, One Marketplace Axxora.com is a proven distribution platform for original manufacturers of innovative research reagents. An increasing number of researchers use our unique marketplace to connect with over 40 specialty manufacturers and gain access to over 100,000 products.

Research and Development

Our principal research and development efforts are directed toward developing innovative new clinical research and diagnostic platforms, and selective expansion of our research product lines, given our manufacturing and distribution capability. We have developed our core research expertise in the life sciences field as a result of over 40 years of dedicated focus in this area. We conduct our research and other product development efforts through internal research and collaborative relationships.

In the fiscal years ended July 31, 2022, 2021 and 2020, the Company incurred costs of approximately $3.8 million, $3.3 million, and $4.4 million, respectively, for research and development activities. Starting in fiscal 2018, the Company’s research and development program was refocused to areas that had greater opportunity in molecular diagnostics and immunology chemistry to maximize revenues.

Internal Research Programs

Our professional staff, including 65 with post graduate degrees, performs our internal research and development activities. Our product development programs incorporate various scientific areas of expertise, including recombinant DNA, monoclonal antibody development, enzymology, microbiology, biochemistry, molecular biology, organic chemistry, immunology, flow cytometry and fermentation. In addition, we continuously review in-licensing opportunities in connection with new technology.

External Research Collaborations

We have and continue to explore collaborative relationships with prominent companies and leading-edge research institutions in order to maximize the application of our technology in areas where we believe such relationship will benefit the development of our technology.

Sales and Marketing

Our sales and marketing strategy is to sell our life sciences products through: (i) direct sales to end-users under the Enzo Life Sciences name, with direct recognition to our acquired brands (ii) direct sales to end users under the Axxora electronic market place name (iii) supply agreements with manufacturers and (iv) distributors in major geographic markets. We operate with an understanding of local markets and a well-functioning distribution network system across the globe. Scientists around the world who recognize the brands (Alexis, Assay Designs, Biomol, Enzo and Stressgen) now receive products directly from Enzo Life Sciences where we are recognized for innovative high quality products, supported directly by our qualified technical staff. We sell the same products through our Axxora electronic market place which is also the source for life science research reagents from over 40 specialty manufacturers. Our direct marketing and sales network includes fully-owned subsidiaries (USA, Switzerland, Germany, Benelux, and UK), a branch office in France and a network of third party distributors in most other significant markets worldwide.

For Clinical Laboratory Services, we focus our sales efforts on obtaining and retaining profitable accounts. We market these services to a broad range of ordering physicians in the metro New York, New Jersey and Connecticut regions through our direct sales force who are supported by client service and patient service representatives. We monitor and where appropriate, change the service levels and terminate ordering physician accounts that are not profitable. We are focusing our efforts to attract and retain clients who participate with the providers with whom we have regional contracts and are consistently looking to add higher value molecular and esoteric testing, both internally developed and with partners, to our menu to assist sales in new account penetration as well as to improve our level of service to existing clients.

Distribution Arrangements

We also distribute our life science products internationally through a network of distributors. Through these arrangements, we are able to leverage the established marketing and distribution infrastructure of these companies in certain market places.

Competition

We compete with other life science and biotechnology companies, as well as pharmaceutical, chemical and other companies. Competition in our industry is intense. Many of these companies are performing research targeting the same technologies, applications and markets. Many of these competitors are significantly larger than we are and have more resources. The primary competitive factors in our industry are the ability to create scientifically advanced technology, offer innovative products at the forefront of technological development to targeted market segments, successfully develop and commercialize products on a timely basis, establish and maintain intellectual property rights and attract and retain a breadth and depth of human resources.

Our clinical laboratory services business competes with numerous national, regional, and local entities, some of which are larger than we are and have greater financial resources than we do. Our laboratory competes primarily on the basis of the quality and specialized nature of its testing, reporting and information services, its reputation in the medical community, its reliability and speed in performing diagnostic tests, and its ability to employ qualified laboratory personnel.

Intellectual Property

We consider our intellectual property program to be a key asset and a major strategic component to the execution of our business strategy. A broad portfolio of issued patents and pending patent applications supports our core technology platforms. Our policy is to seek patent protection for our core technology platforms, as well as for ancillary technologies that support these platforms and provide a competitive advantage.

In February 2021, we were issued U.S. Patent No. 10,899,827 entitled “Antibodies Specific for Sulfation Sites of Sclerostin.” The new patent is a member of a broader U.S. and international patent family that also includes issued patents and pending patent applications for therapies including monoclonal antibodies and small synthetic peptides used to inhibit sclerostin in the treatment of bone disorders such as osteoporosis. This patent focuses on polyclonal antibodies that bind a specific region of human sclerostin, a protein that is a negative regulator of bone growth. Sclerostin is produced in osteocytes, a type of bone cell, and is known to inhibit bone formation. The maintenance of bone over time requires a balance between the formation of new bone tissue and the breakdown and removal (resorption) of old bone tissue.

In June 2020, we announced the issuance of a patent entitled Sphingosine Pathway Modulating Compounds for the Treatment of Cancers. This patent is directed to methods for treating hepatocellular carcinoma (HCC), the most common human liver cancer, using our proprietary compound SK1-I.

In May 2020, we announced the issuance of a U.S. Patent entitled Sulfonated Sclerostin, Antibodies, Epitopes and Methods for Identification and Use Therefor. The patent is directed to methods for producing monoclonal antibodies against specific regions of human Sclerostin, a protein that is a negative regulator of bone growth. Inhibition of Sclerostin using monoclonal antibodies can be used to promote bone growth for the treatment of osteoporosis. This patent is a member of a broader U.S. and international patent family that includes issued patents and pending patent applications directed to antibodies and their use in inhibiting Sclerostin as well as small synthetic peptides and their use in inhibiting Sclerostin in the treatment of bone disorders such as osteoporosis In April 2020, we announced the issuance of a U.S. patent entitled Sphingosine Kinase Type 1 Inhibitors and Uses Thereof. This patent is directed to methods for inhibiting the enzyme Sphingosine kinase 1 in patients using the company’s proprietary compound SK1-I and related Sphingosine kinase 1 inhibitors. Based on the results obtained in the lupus model and prior work demonstrating the anti-inflammatory activity of SK1-I in animal models of other immune disorders and on isolated human blood cells, the company is exploring avenues for the development of SK1-I as a potential treatment for COVID-19.

In August 2019, we announced the issuance of a U.S. patent entitled Nucleic Acid Probes for In Situ Hybridization. This patent is related to a new probe technology developed by Enzo and transformative methods of testing using the probes, which allow for significantly more cost effective, simple and scalable processes. These new probes can be used to detect clinically relevant genomic targets with high-sensitivity in cell samples and biopsy tissue obtained from patients.

At the end of fiscal 2022, we owned or licensed 443 patents relating to products, methods and procedures resulting from our internal or sponsored research projects. There can be no assurance that patents will be issued on pending applications or that any issued patents will not be challenged (see Item 3, Legal Proceedings), or that they will have commercial benefit. We do not intend to rely on patent protection as the sole basis for protecting our proprietary technology.

We also rely on our trade secrets and continuing technological innovation. We require each of our employees to sign a confidentiality agreement that prohibits the employee from disclosing any confidential information about us, including our technology or trade secrets.

Our intellectual property portfolio can be divided into patents that provide claims in three primary categories, as described below:

Nucleic Acid Chemistry

We currently have broad patent coverage in the area of nucleic acid chemistry. We have done extensive work on the labeling of nucleic acids for the purpose of generating a signal that dates back over twenty years. Enzo has multiple issued patents covering the modification of nucleic acids at their sugar and phosphate sites. The claims contained in these patents cover products that incorporate a signaling moiety into a nucleic acid attached to a sugar or phosphate for the purpose of nucleic acid detection or quantification, including sequencing and real time nucleic acid amplification. Enzo also has patents directed to proprietary dyes that may be used to label the sugar, base or phosphate positions of nucleic acids.

Signal Delivery

We also have a long history of innovation in the area of analyte detection using non-radioactive signaling entities. At the signaling entity itself, there are several Enzo patents that cover the formation of this structure. A patent which was allowed in 2006 covers the attachment of signaling molecules through the phosphate moiety of a nucleic acid, which is how the signal-generating enzyme is bound.

Nucleic Acid Analysis Format

We also have patents with issued claims covering the use of arrays of single-stranded nucleic acids fixed or immobilized in hybridizable form to a non-porous solid support. These patents cover any product that uses arrays of nucleic acids for molecular analysis. In some instances, we may enter into royalty agreements with collaborating research parties in consideration for the commercial use by us of the developments of their joint research. In other instances the collaborating party might obtain a patent, but we receive the license to use the patented subject matter. In such cases, we will seek to secure exclusive licenses. In other instances, we might have an obligation to pay royalties to or reach a royalty arrangement with a third party in consideration of our use of developments of such third party.

REGULATION AFFECTING OUR BUSINESSES

Clinical Laboratory Services

The clinical laboratory industry is subject to significant federal and state regulation, including inspections and audits by governmental agencies. Governmental authorities may impose fines, criminal penalties or take other actions to enforce laws and regulations, including, but not limited to, revocation of a clinical laboratory’s certificate and/or license to operate a clinical laboratory. Changes in regulation may also increase the cost of performing clinical laboratory tests, increase administrative requirements, and/or decrease the amount of reimbursement. Our clinical laboratory and where applicable patient service centers (PSCs) are licensed and accredited as required by law.

 CLIA (the Clinical Laboratory Improvement Amendments of 1988 and its implementing regulations) regulates virtually all clinical laboratories in the United States. Among other things, CLIA requires non-exempt clinical laboratories to earn certification from the federal government and comply with various operational, personnel and quality requirements intended to ensure that their clinical laboratory testing services are accurate, reliable and timely. CLIA does not pre-empt state laws that are more stringent than federal laws. As such, certain clinical laboratories must also meet state specific standards, including inspection, proficiency testing, and personnel requirements. Clinical laboratory certificates, permits, or licenses are also required by various state and local laws, including certain jurisdictions that require an out-of-state clinical laboratory to obtain a license/permit if they accept specimens from the state. Enzo has obtained licenses or permits in the states of New York, New Jersey, California, Pennsylvania, Maryland, and Rhode Island. Enzo also operates a clinical laboratory in the state of Connecticut.

CLIA assigns testing services into one of three categories on the basis of complexity (waived, moderate complexity and high complexity) and establishes varying requirements depending upon the complexity category of the tests performed. A laboratory that performs high complexity testing must meet more stringent requirements than a laboratory that performs only moderate complexity testing, while those that perform only waived testing may apply for a certificate of waiver that if granted, would exempt the laboratory from most CLIA requirements. Our laboratory in Farmingdale, NY is certified to perform high complexity testing. In general, regulations promulgated by the United States Department of Health and Human Services (“HHS”) require clinical laboratories that perform high or moderate complexity testing to implement systems that ensure the accurate performance and reporting of test results, establish quality control and quality assurance systems, ensure that personnel meet specified standards, conduct proficiency testing by approved agencies, and undergo biennial inspections, among other requirements.

Clinical laboratories also are subject to state regulation. CLIA provides that a state may adopt different or more stringent regulations than Federal law, and permits states to apply for exemption from CLIA if HHS determines that the state’s laboratory laws are equivalent to, or more stringent than CLIA. The State of New York’s clinical laboratory regulations contain provisions that are more stringent than Federal law, and New York has received an exemption from CLIA. Therefore, as long as New York maintains a licensure program that is CLIA-exempt, laboratories in New York may comply with CLIA requirements by establishing that they meet requirements for clinical laboratories under New York law. Enzo’s two New York laboratories are licensed in New York State and have ongoing programs that ensure that their operations are in compliance with all applicable regulatory requirements, including the requirement to obtain approval to perform certain analyte-specific testing or other methodologies which are not reviewed by FDA as laboratory-developed tests (LDTs).

Sanctions for non-compliance with applicable regulations may include, but are not limited to, suspension, revocation, or limitation of a laboratory’s CLIA certificate and/or state license, as well as fines and criminal penalties. The loss of, or adverse action against, a certificate or license, the imposition of fines, penalties or other sanctions, or future changes in Federal, state or local laboratory laws and regulations (or in the interpretation of current laws and regulations) could have a material adverse effect on our business.

Billing and reimbursement for clinical laboratory testing are subject to complex federal and state laws, rules and regulations, the violation of which may include, but is not necessarily limited to: (1) exclusion from participation in federal health care programs (including Medicare and Medicaid); (2) asset forfeitures; (3) civil monetary penalties; (4) criminal fines and penalties; and (5) the loss of licenses, certificates and/or authorizations necessary to operate some or all of a clinical laboratory’s business.

The health care industry has been undergoing significant change because third-party payers, such as Medicare, Medicaid, health maintenance organizations and commercial insurers, have increased their efforts to control the cost, utilization and delivery of health care services. To address the problem of increasing health care costs, legislation has been proposed or enacted at both the Federal and state levels to regulate health care delivery in general, and clinical laboratories in particular. Additional health care reform efforts are likely to be proposed in the future. In particular, we believe that reductions in reimbursement for Medicare services will continue to be implemented from time to time. Reductions in the reimbursement rates of other third-party payers, commercial insurers and health maintenance organizations are likely to occur as well. We cannot predict the effect that current and future health care reform measures, if enacted, would have on our business, and there can be no assurance that such reforms, if so enacted, would not have a material adverse effect on our business and operations.

Containment of health care costs, including reimbursement for clinical laboratory services, has been a focus of on-going governmental activity. In general, clinical laboratories must bill Medicare directly for the services provided to Medicare beneficiaries and may only collect the amounts permitted under the Medicare Clinical Laboratory Fee Schedule. Under the Patient Protection and Affordable Care Act, expansion in the pool of covered lives may expand the market for clinical diagnostic testing while at the same time, various policies aimed at reducing costs or bundling care may reduce the rates paid for such services; the net impact of these factors on the market for our services is not clear . In April 2014, Congress passed the Protecting Access to Medicare Act of 2014 (PAMA), which included substantial changes to the way in which clinical laboratory services will be paid under Medicare. Beginning in 2018, Medicare payments for clinical laboratory services are paid based upon the volume-weighted median of private payer rates as reported by certain clinical laboratories across the US, replacing the previous system which was based upon fee schedules derived from historical charges for tests from the mid 1980’s.

Since Enzo’s clinical laboratory receives more than 50% of its total Medicare revenue from the Part B Clinical Laboratory Fee Schedule (CLFS) and the Physician Fee Schedule and receives more than $12,500 in Medicare CLFS revenues per year, we are considered an “applicable laboratory”, and as such, are required to report private payer rate information to CMS. Enzo initially reported data from the first two quarters of Calendar Year (CY) 2016 during Q1 2017, and this information was used (along with data from other relevant laboratories) to calculate Medicare reimbursement rates for CY 2018-2022. The current reporting cycle required us to report private payer rates for fee reimbursements for the period January 1, 2019 to June 30, 2019 to CMS during Q1 2022. This combined data (and data from other laboratories) will be aggregated and utilized again as the basis for the 2023-2025 Medicare CLFS that is expected to be finalized in November 2022.

Reimbursement for Medicare services is subject to annual reduction (sequestration) of 2% under the Budget Control Act of 2011. Beginning in May 2020, there was a suspension of annual sequestration, which resulted in a small benefit to us in the form of higher reimbursement rates for diagnostic testing services performed on behalf of Medicare beneficiaries than had been expected. During December 2021, the suspension of Medicare sequestration was further extended through March 31, 2022 and it was reduced to 1% from April 1, 2022 to June 30, 2022, with the full annual 2% reduction in rates resuming thereafter. The impact of subsequent adjustments to Medicare rates are unclear at this time

Future changes in federal, state and local regulations (or in the interpretation of current regulations) affecting governmental reimbursement for clinical laboratory testing may have a material adverse effect on our business. We cannot predict, however, whether and what type of legislation will be enacted into law. In addition, (1) reimbursement denials by third party payers, commercial insurers and health maintenance organizations, (2) reductions or delays in the establishment of reimbursement rates, (3) carrier limitations on the insurance coverage of the Company’s services and (4) the use of the Company as a service provider may have a negative effect on the Company’s future revenues.

Anti-Fraud and Abuse Laws

Existing Federal and state laws also regulate certain aspects of the relationship among healthcare providers, including clinical laboratories, and their referral sources (i.e., physicians, hospitals, other laboratories, etc.). One of these laws, known as the federal “Anti-Kickback Statute,” contains broad prohibitions against knowingly and willfully offering, paying, soliciting (i.e., asking for) or receiving remuneration (i.e., anything of value) in any form (e.g., cash, gifts, certain discounts, cross-referrals between parties, etc.), either directly or indirectly, to induce or in return for the referral of an individual for the furnishing of or arranging for the furnishing of any item or service for which payment may be made in whole or in part by a federal health care program. or the purchasing, leasing, ordering, or arranging for or recommending purchasing, leasing, or ordering of any good, facility, item or service for which payment may be made in whole or in part by a federal health care program.

Violation of the Anti-Kickback Statute may result in, among other things, a criminal conviction, significant monetary penalties and exclusion from federal health care programs (including Medicare and Medicaid). Any person or entity involved in a prohibited transaction is potentially subject to criminal and civil penalties. A laboratory that claims payment for business generated by the Anti-Kickback Statute may also be subject to prosecution for violating a separate civil statute, the federal False Claims Act.

Eliminating Kickbacks in Recovery Act (“EKRA”)

In 2018, Congress passed EKRA as part of the Substance Use-Disorder Prevention that Promotes Opioid Recovery and Treatment for Patients and Communities Act. Similar to the Medicare/Medicaid anti-kickback law, EKRA imposes criminal penalties for knowing or willful payment or offer, or solicitation or receipt, of any remuneration, whether directly or indirectly, overtly or covertly, in cash or in kind, in exchange for the referral or inducement of laboratory testing (among other healthcare services) unless a specific exception applies. However, unlike the Medicare/Medicaid anti-kickback law, EKRA is not limited to services covered by federal or state healthcare programs but applies more broadly to services covered by “healthcare benefit programs,” including commercial insurers. As currently drafted, EKRA potentially expands the universe of arrangements that could be subject to government enforcement under federal fraud and abuse laws. In addition, while the Medicare/Medicaid anti-kickback law includes certain exceptions that are widely relied upon in the healthcare industry, including compensating employees on a percentage basis, not all of those same exceptions apply under EKRA. EKRA expressly does not protect employee compensation that varies by the number of individuals referred to a laboratory, the number of tests performed by a laboratory, or the amount billed to or received from a health benefit program from individuals referred to a laboratory.  Because EKRA is a relatively new law, there is no agency guidance and only two courts have addressed the application of EKRA and the courts reached different conclusions. 

No Surprises Act

The No Surprises Act (“NSA”) prohibits nonparticipating or out-of-network (“OON”) Providers and Facilities from “balance billing” participants in certain circumstances for plans years effective January 1, 2022.  This means, generally, that the OON Provider/Facility may not bill, and must not hold liable, a participant for a payment amount for the item or service furnished by the provider/facility with respect to a visit at the facility that exceeds the participant’s cost-sharing requirement for that item/service.  In general, the NSA prohibition on balance billing applies to: (i)  emergency and post-stabilization services given to a participant by nonparticipating providers or a nonparticipating facility; (ii) nonemergency services given to a participant by nonparticipating providers in nonparticipating facilities, and (iii) air ambulance services.  The NSA requires both providers and health plans to assist patients with accessing health care cost information.  The NSA also allows providers and insurers an opportunity to negotiate reimbursement amounts and, in the alternative, access to an independent dispute resolution process.  Whether the NSA applies to services provided by Enzo depends on various factors, including whether the service was an emergency service or a non-emergency service, whether it is an in-network provider or an OON provider and additionally if the patient is uninsured or self-pay (elects not to use insurance).

False Claims Act

The federal False Claims Act is also a broad statute that the government often utilizes to combat fraud and abuse in the health care environment. Among other things, the statute is violated by any person who knowingly presents, or causes to be presented, a false or fraudulent claim for payment or approval; knowingly makes, uses, or causes to be made or used, a false record or statement material to a false or fraudulent claim; conspires to commit the above (or other specified) violations; or knowingly makes, uses, or causes to be made or used, a false record or statement material to an obligation to pay or transmit money or property to the government, or knowingly conceals or knowingly and improperly avoids or decreases an obligation to pay or transmit money or property to the government. The federal False Claims Act also provides that private parties may bring an action on behalf of (and in the name of) the United States to prosecute a federal False Claims Act violation. These private parties (known as “qui tam relators”) may share in a percentage of the proceeds that result from a federal False Claims Act action or settlement. A person or entity found to have violated the federal False Claims Act may be held liable for a per claim civil penalty. For penalties assessed after June 19, 2020, whose associated violations occurred after November 2, 2015, the penalties range from $11,665 to $23,331 for each false claim, plus three times the amount of damages sustained by the government. The minimum and maximum per claim penalty amounts are subject to annual increases for inflation. A person violating the federal False Claims Act is also liable for the costs of the civil action brought to recover any such penalty or damages. Other consequences may also result from a violation of the federal False Claims Act or similar state laws. For example, New York has also adopted its own false claims act statute, which closely mirrors its federal counterpart.

Stark Law 

Another federal law, commonly known as the “Stark” law, prohibits physicians who have (or whose immediate family member has) a financial relationship with an entity that furnishes Medicare-covered “designated health services,” which includes clinical laboratory services (including anatomic pathology and clinical chemistry services), from referring Medicare beneficiaries to that entity for “designated health services” unless a specific exception applies.

In addition, laboratories may not bill federal health care programs, or any other payer, for services furnished pursuant to a prohibited referral. Violation of the Stark law may result not only in denial of payment for the underlying testing services, but also the imposition of civil monetary penalties and, potentially, False Claims Act liability. The Stark law also prohibits state receipt of federal Medicaid matching funds for services furnished pursuant to a prohibited referral. This provision of the Stark law has not been implemented by regulations, but some courts have held that the submission of claims to Medicaid that would be prohibited as self-referrals under the Stark law for Medicare could implicate the federal False Claims Act. Many states, including New York have adopted laws that are similar to the federal Stark law, which contain similar prohibitions and penalties and apply regardless of payer.

Various federal and state laws, including the Stark law and New York State laws, may also apply in ways that impose restrictions on the supplies and other items that laboratories may provide to their clients without charge. For example, in the case of the Stark law, laboratories may provide clients with items, devices or supplies that are used solely to collect, transport or store specimens for the laboratory or to communicate results or tests without implicating the law, but not surgical items, devices or supplies. The Company has implemented procedures to ensure compliance with these laws and restrictions.

In 1997, the Department of Health and Human Services, Office of the Inspector General (OIG) released a model compliance plan for the clinical laboratory industry and in 1998 released a voluntary compliance program guidance for laboratories. One key aspect of the OIG guidance was an emphasis on the responsibility of laboratories to notify physicians that Medicare covers only medically necessary services. The OIG guidance on notices focuses on chemistry tests, especially routine tests, rather than on anatomic pathology services or the non-automated tests, which make up the majority of the Company’s business measured in terms of net revenues. Nevertheless, the notice could potentially affect physicians’ test ordering habits more broadly. The Company is unable to predict whether, or to what extent, notices have impacted, or may impact, utilization of the Company’s services.

The federal health care reform legislation adopted in March, 2010, known as the Patient Protection and Affordable Care Act, contains provisions requiring providers to establish compliance programs as a condition of enrollment in Medicare, Medicaid and the State Children’s Health Insurance Program. Implementing regulations and guidance for clinical laboratories has not yet been issued yet by the Centers for Medicare and Medicaid Services. In addition, New York State has adopted mandatory compliance program requirements for certain specified providers, including those who directly or indirectly bill or collect more than $500,000 annually in Medicaid payments, and entities licensed under certain articles of the Public Health Law and Mental Hygiene Law, respectively. The Company has adopted its own Corporate Compliance Program based upon the OIG model program guidance and in accordance with New York State’s requirements.

The Company’s compliance program focuses on, among other things, establishing clear compliance standards; auditing and monitoring of the Company’s billing and coding practices; training personnel on compliance standards, policies and procedures; preventing and detecting fraud, waste and abuse, enforcing a policy of non-retaliation and non-intimidation for good faith participation in the compliance program; and establishing good faith reporting of actual or suspected compliance violations.

The Company seeks to structure its arrangements with physicians and other customers in compliance with federal and state Anti-Kickback laws, Stark laws, False Claims Acts, and other applicable laws, rules and regulations, and to keep current on developments concerning their application to the Company, including consultation with legal counsel. However, the Company is unable to predict how such laws and regulations will be interpreted and applied in the future, and thus no assurances can be given that its arrangements or processes will not become subject to scrutiny by a governmental agency.

Standards for Electronic Healthcare Transactions and Privacy, Security and Breach Notification Requirements

The Health Insurance Portability and Accountability Act of 1996, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009 (“HITECH Act”) (together, “HIPAA”), included “administrative simplification” provisions designed to standardize common electronic transactions in health care and to protect the security and privacy of health information. Congress’ purpose in promulgating HIPAA was to increase the efficiency of health care transactions while, at the same time, protecting the confidentiality of patient information. HIPAA’s implementing regulations set forth standards for conducting certain electronic transactions, as well as privacy, security and breach notification requirements applicable to certain health information. As part of its standards for electronic transactions, HIPAA requires the use of a National Provider Identifier in electronic health care transactions. The National Provider Identifier is an identifier that replaced all other identifiers that are currently used or healthcare transactions (e.g., UPIN, Medicaid provider numbers, identifiers assigned by commercial insurers). The regulations promulgated under HIPAA have very broad applicability, including by specifically applying to health care providers that engage in certain standard electronic transactions, which may include physicians and clinical. Such health care providers, together with health plans and health care clearinghouses are subject to HIPAA as “Covered Entities”. HIPAA also applies to the “Business Associates” of Covered Entities, which are generally individuals or entities that create, receive, maintain, transmit, use, or disclose protected health information in performing certain functions or services for or on behalf of Covered Entities.

The electronic transaction standards regulations created guidelines for certain common health care transactions. With certain exceptions, these standards require that, when we conduct certain transactions electronically with another health care provider, health care clearinghouse or health plan, we must comply with the standards set forth in the regulations. The regulations established standard data content and format requirements for submitting electronic claims and other administrative health transactions. Health care providers and health plans are required to use standard formats when transmitting claims, referrals, authorizations, and certain other transactions electronically. The Company believes it is in compliance with these standards. However, to the extent the Company engages in electronic standards that do not comply with applicable standards under HIPAA, payments to the Company may be delayed or denied.

Adhering to the privacy, security and breach notification requirements under HIPAA requires an extensive compliance infrastructure. We are required to maintain numerous policies and procedures in order to comply with these requirements. Furthermore, we need to continuously ensure that there are mechanisms in place to safeguard the privacy of PHI that is transmitted or maintained in any format (e.g. oral, written, or electronic). Failure to comply with these requirements can result in criminal and civil penalties. In addition, to comply with the HIPAA security regulations in particular, we must ensure the confidentiality, integrity and availability of all electronic PHI (“EPHI”) that we create, receive, maintain, or transmit. We have some flexibility to fashion our own security measures to accomplish these goals. The security regulations strongly emphasize that we must periodically conduct an accurate and thorough assessment of the potential risks and vulnerabilities to the confidentiality, integrity and availability of our EPHI and then document our response to the various security regulations on the basis of that assessment.

The privacy, security and breach notification regulations under HIPAA were last modified in 2013 as a result of final regulations published pursuant to the HITECH Act (“Omnibus Rule”). The HITECH Act requires, among other things, that Covered Entity health care providers, which may include laboratories, notify patients of breaches of unsecured PHI, enter into business associate agreements with their business associates that meet certain requirements, and take other steps to comply with the privacy, security, and breach notification requirements of the HITECH Act, which include making necessary revisions to many of their existing privacy policies and procedures. In addition, the HITECH Act makes Business Associates directly liable to the Federal government for compliance with certain aspects of the privacy, security and breach notification regulations. In addition, as implemented in the Omnibus Rule, a downstream subcontractor of a Business Associate that creates, receives, maintains, or transmits PHI on behalf of the Business Associate is also itself considered a Business Associate.

Covered Entities and Business Associates are subject to potentially significant civil and criminal penalties for violating HIPAA. Under the Omnibus Rule, health care providers, such as laboratories, that are subject to HIPAA as a Covered Entity are also vicariously liable for violations of HIPAA based on acts or omissions of their agents, including Business Associates, when the agent is acting within the scope of the agency. Complying with the electronic transaction, privacy, security and breach notification rules requires significant effort and expense for virtually all entities that conduct health care transactions electronically and handle PHI.

We may also be subject to state laws that are not pre-empted by HIPAA to the extent the state law is more stringent than HIPAA, provides individuals with greater rights with respect to their protected health information, or are broader in scope than HIPAA. Every U.S. state has also enacted its own breach notification law that requires regulated entities to report certain data breaches to affected individuals, state regulators, and other parties. Failure to comply with applicable state privacy, security or breach notification laws may result in civil or criminal liability, private causes of action by individuals, administrative actions brought by state regulators, or other consequences that may adversely impact our business or reputation.

Medical Regulated Waste

We are subject to licensing and regulation under federal, state and local laws relating to the handling and disposal of medical specimens, infectious and hazardous waste, as well as to the safety and health of laboratory employees. All our laboratories are required to operate in accordance with applicable federal and state laws and regulations relating to biohazard disposal of all facilities specimens. We use outside vendors to dispose of such specimens. Although we believe that we comply in all respects with such federal, state and local laws, our failure to comply with those laws could subject us to denial of the right to conduct business, fines, criminal penalties and/or other enforcement actions.

Occupational Safety

In addition to its comprehensive regulation of safety in the workplace, the U.S. Federal Occupational Safety and Health Administration (“OSHA”) has established extensive requirements relating to workplace safety for health care employers, including clinical laboratories, whose workers may be exposed to blood-borne pathogens such as HIV and the hepatitis B virus. These regulations, among other things, require work practice controls, protective clothing and equipment, training, medical follow-up, vaccinations and other measures designed to minimize exposure to, and transmission of, blood-borne pathogens. The Federal Drug Enforcement Administration regulates the use of controlled substances in testing for drugs of abuse. We are also subject to OSHA’s requirement that employers using hazardous chemicals communicate the properties and hazards presented by those chemicals to their employees. We believe that we are in compliance with these OSHA requirements. Our failure to comply with those regulations and requirements could subject us to tort liability, civil fines, criminal penalties and/or other enforcement actions.

Other Regulation

Our business is and will continue to be subject to regulation under various state and federal environmental, safety and health laws, including the Occupational Safety and Health Act, the Resource Conservation and Recovery Act, and the Atomic Energy Act or their state law analogs. These and other laws govern our use, handling and disposal of various biological, chemical and radioactive substances used in our operations and wastes generated by our operations. We are required to possess licenses under, or are otherwise subject to federal and state regulations pertaining to, the handling and disposal of medical specimens, infectious and hazardous waste and radioactive materials.

We believe that we are in compliance with applicable environmental, safety and health laws in the United States and internationally and that our continual compliance with these laws will not have a material adverse effect on our business. All of our laboratories are operated in accordance with applicable federal and state laws and regulations relating to hazardous substances and wastes, and we use qualified third-party vendors to dispose of biological specimens and other hazardous wastes. Although we believe that we comply in all respects with such federal, state and local laws, our failure to comply with those laws could subject us to denial of the right to conduct business, civil fines, criminal penalties and/or other enforcement actions. Environmental contamination resulting from spills or disposal of hazardous substances generated by our operations, even if caused by a third-party contractor or occurring at a remote location could result in material liability.

Regulation of Diagnostic Products

In February 2020, the HHS Secretary determined that there is a public health emergency that has a significant potential to affect national security or the health and security of United States citizens living abroad, and that involves the virus that causes COVID-19. On the basis of this determination, the Secretary then declared that circumstances exist justifying the authorization of emergency use of in vitro diagnostics for detection and/or diagnosis of the virus that causes COVID-19.

The diagnostic products that are developed by our collaborators, or by us, are likely to be regulated by the FDA as medical devices. Unless an exemption applies, medical devices must undergo premarket review (and receive “510(k) clearance”, de novo 510(k) authorization, or pre-market approval (“PMA”) from the FDA, as may be applicable) before they can be marketed in the United States. The FDA’s premarket review processes may be costly and time consuming, but the process of obtaining PMA approval is typically the most costly, lengthy and uncertain, followed by the de novo 510(k) process, and then the 510(k) process. Regardless of the premarket review pathway that applies to a particular product, we cannot be sure that we will successfully complete the FDA premarket review process for any product we propose to market.

The FDA decides the premarket review process that applies to a particular device based upon statutory criteria. These criteria include the level of risk that the agency perceives is associated with the device and a determination whether the product is a type of device that is similar to devices that are already legally marketed. Devices deemed to pose relatively less risk are placed in either class I or II, which requires the manufacturer to submit a premarket notification requesting 510(k) clearance, unless an exemption applies. In a pre-market notification, the applicant must demonstrate that the proposed device is “substantially equivalent” in intended use and in safety and effectiveness to a legally marketed “predicate device” that is a “pre-amendment” class III device (i.e., one that was legally in commercial distribution before May 1976) for which the FDA has not yet called for submission of a PMA application, or a device which has been reclassified from Class III to Class II or I, a device which has been found substantially equivalent through the 510(k) process, or a device that was granted marketing authorization via the de novo classification process that is not exempt from premarket notification requirement.

After a device receives 510(k) clearance, any modification that could significantly affect its safety or effectiveness, or that would constitute a major change in its intended use, requires a new 510(k) clearance or could require a de novo 510(k) authorization or PMA approval (as applicable). The FDA requires each manufacturer to make the determination regarding whether a modification triggers the requirement for a new submission in the first instance, but the FDA can review any such decision. If the FDA disagrees with a manufacturer’s decision not to seek premarket review for the modified device, the agency may retroactively require the manufacturer to do so. The FDA also can require the manufacturer to cease marketing and/or recall the modified device until the premarket review process has been successfully completed.

Devices deemed by the FDA to pose the greatest risk, such as life-sustaining, life-supporting or implantable devices, or deemed not substantially equivalent to a legally marketed class I or class II predicate device, or to a preamendment class III device, for which PMAs have not been called, are placed in class III. Such devices are required to undergo the PMA approval process in which the manufacturer must provide sufficient valid scientific evidence of the safety and effectiveness of the device. A PMA application typically requires the collection of extensive preclinical and clinical trial data and also information about the device and its components regarding, among other things, device design, manufacturing and labeling. After approval of a PMA, a new PMA or PMA supplement is required in the event of a modification to the device, its labeling or its manufacturing process.

Although clinical investigations of many devices are subject to the investigational device exemption (“IDE”) requirements, clinical investigations of certain in vitro diagnostic (“IVDs”) tests are exempt from the IDE requirement provided the testing is non-invasive, does not require an invasive sampling procedure that presents a significant risk, does not by design or intention introduce energy into the subject, and is not used as a diagnostic procedure without confirmation by another medically established test or procedure.

Notwithstanding the above, certain IVD products can be marketed without going through the premarket review process if they are intended for use in the laboratory research phase of development and not represented as an effective IVD (i.e., labeled for Research Use Only (RUO)) or for use in product testing prior to full commercial marketing (i.e. for Investigational Use Only (IUO)). Because RUO and IUO-labeled products are exempt from most regulatory requirements that would otherwise apply to medical devices, it is important that they are not distributed for clinical diagnostic use. Mere placement of an RUO or IUO label on an IVD product does not render the device exempt from otherwise applicable regulatory requirements; indeed, FDA may determine that the device is intended for use in clinical diagnosis on the basis of other evidence, including how the device is marketed. FDA recommends that manufacturers assess the totality of the circumstances surrounding the distribution of their RUO and IUO labeled products to ensure that they are not engaging in practices that conflict with their labeling. The FDA expressed its intent to exercise heightened enforcement with respect to IUO and RUO devices improperly commercialized without FDA clearance, authorization or approval in a 2013 final guidance document.

We have developed products that we currently distribute in the United States on a RUO basis. There can be no assurance that the FDA would agree that our distribution of these products meets the requirements for RUO distribution. Furthermore, our failure to comply with the regulatory limitations on the sale and distribution of RUO devices could result in enforcement action by the FDA, including the imposition of restrictions on our distribution of these products.

Although FDA has long asserted it has jurisdiction over laboratory-developed tests, the agency has historically exercised discretion enforcement with respect to most such tests and not required laboratories that furnish these tests to comply with FDA’s regulatory requirements for medical devices. In recent years, however, the FDA has indicated that it intends to end enforcement discretion and regulate certain LDTs as medical devices. In October 2014, the FDA officially a draft guidance document that set forth a proposed risk-based regulatory framework that would apply varying levels of FDA oversight to LDTs. The FDA has indicated that it does not intend to modify its policy of enforcement discretion until the draft guidance documents are finalized. Subsequently, in January 2017, the FDA published a “discussion paper” in which the agency outlined a substantially revised “possible approach” to the oversight of LDTs. The discussion paper explicitly states that it is not a final version of the 2014 draft guidance and that it does not represent the agency’s “formal position;” rather, the discussion paper describes the evolution of the agency’s thinking on LDTs, which the agency posted to “spur further dialogue.” Notably, in the discussion paper, the agency expressed its willingness to consider “grandfathering” currently marketed LDTs from most or all FDA regulatory requirements. It is unclear at this time when, or if, the FDA will finalize its plans to end enforcement discretion, and even then, the new regulatory requirements are expected to be phased-in over time. Nevertheless, the FDA may decide to regulate certain LDTs on a case-by-case basis at any time.

Legislative proposals addressing the FDA’s oversight of LDTs have been introduced in previous Congresses, and we expect that new legislative proposals will be introduced from time to time. The likelihood that Congress will pass such legislation and the extent to which such legislation may affect the FDA’s plans to regulate certain LDTs as medical devices is difficult to predict at this time.

In so far as the products that we manufacture or distribute are subject to regulation as medical devices, a host of additional regulatory requirements may apply beyond premarket review requirements, including establishment registration, device listing, the Quality System Regulation (which requires manufacturers to follow elaborate design, testing, control, documentation and other quality assurance procedures), the Medical Device Reporting regulation (which requires that manufacturers report to the FDA certain types of adverse events involving their products), labeling regulations, and the FDA’s general prohibition against promoting products for unapproved or “off label” uses. Class II devices may also be subject to special controls such as performance standards, post market surveillance, patient registries, and FDA guidelines that do not apply to class I devices. Unanticipated changes in existing regulatory requirements or adoption of new requirements could hurt our business, financial condition and results of operations.

We are subject to inspection and market surveillance by the FDA to determine compliance with regulatory requirements. If the FDA finds that we have failed to comply with applicable requirements, the agency can institute a wide variety of enforcement actions, ranging from a public warning letter to more severe sanctions such as fines, injunction, civil penalties, recall or seizure of our products, operating restrictions, partial suspension or total shutdown of production, refusal of our requests for 510(k) clearance or PMA approval of new products, withdrawal of PMA approvals already granted, and criminal prosecution.

The FDA also has the authority to request repair, replacement or refund of the cost of any medical device manufactured or distributed by us. Our failure to comply with applicable requirements could lead to an enforcement action that may have an adverse effect on our financial condition and results of operations.

Unanticipated changes in existing regulatory requirements, our failure to comply with such requirements or adoption of new requirements could have a material adverse effect on us. We have employees to expedite the preparation and filing of documentation necessary for FDA clearances, authorizations, and approvals, as well as patent issuances and licensing agreements. We cannot assure you that future clinical diagnostic products developed by us or our collaborators will not be required to be reviewed by FDA under the more expensive and time consuming pre-market approval process.

Manufacturing and Research Facilities

Our integrated laboratory and scientific efforts currently take place primarily at three adjacent facilities in Farmingdale, New York. One facility is utilized entirely by Life Science products as its global headquarters, and also for research and manufacturing with special handling capabilities and clean rooms suitable for our operations. The Life Sciences segment had centered its US logistics, reagent and kit manufacturing at a leased facility in Ann Arbor, Michigan, and its European logistics operations in Lausen, Switzerland. We began renovation of an acquired facility in Farmingdale, NY which is adjacent to the other two starting in July 2020. This facility is being used for manufacturing operations and some administrative functions. Effective September 30, 2021 we exited the Ann Arbor, Michigan facility and brought its manufacturing operations to Farmingdale, NY in order to consolidate our United States operations into one geographic location. We also contract with qualified third-party contractors to manufacture our products in cases where we deem it appropriate, for example, when it is not cost-effective to produce a product ourselves or where we seek to leverage the expertise of another manufacturer in a certain area.

Employees

As of July 31, 2022, we employed 465 full-time and 55 part-time employees. Of the full-time employees, 139 were engaged in research, development, manufacturing, and marketing of research products, 266 in performing testing, marketing and billing our clinical laboratories services and 60 in finance, information technology, administrative and executive functions. Our scientific staff, including 65 with post graduate degrees, possesses a wide range of experience and expertise in the areas of recombinant DNA, nucleic acid chemistry, molecular biology and immunology. We believe that we have established good relationships with our employees.

Information Systems

Information systems are used extensively in virtually all aspects of our businesses. In our clinical laboratory services business, our information systems are critical with respect to laboratory testing, billing, accounts receivable, customer service, logistics, and management of medical data. Our success depends, in part, on the continued and uninterrupted performance of our information technology systems. Computer systems are vulnerable to damage from a variety of sources, including telecommunications or network failures, malicious human acts and natural disasters.

Moreover, despite network security measures, some of our servers are potentially vulnerable to physical or electronic break-ins, computer viruses and similar disruptive problems. We have invested heavily in the upgrade of our information and telecommunications systems to improve the quality, efficiency and security of our businesses. In addition, to complement our proprietary physician connectivity solution EnzoDirect, we have a web portal version which allows physicians to receive laboratory results from any personal computer with a browser and an Internet connection.

Despite the precautionary measures that we have taken to prevent unanticipated problems that could affect our information technology systems, sustained or repeated system failures that interrupt our ability to process test orders, deliver test results or perform tests in a timely manner could adversely affect our reputation and result in a loss of customers and net revenues.

Quality Assurance

We consider the quality of our clinical laboratory tests to be of critical importance, and, therefore, we maintain a comprehensive quality assurance program designed to help assure accurate and timely test results. In addition to the compulsory external inspections and proficiency programs demanded by the Medicare program and other regulatory agencies, our clinical laboratory has in place systems to emphasize and monitor quality assurance.

In addition to our own internal quality control programs, our laboratory participates in numerous externally administered, blind quality surveillance programs, including on-site evaluation by the College of American Pathologists (“CAP”) proficiency testing program and the New York State survey program. The blind programs supplement all other quality assurance procedures and give our management the opportunity to review our technical and service performance from the client’s perspective.

The CAP accreditation program involves both on-site inspections of our laboratory and participation in the CAP’s proficiency testing program for all categories in which our laboratory is accredited by the CAP. The CAP is an independent nongovernmental organization of board certified pathologists, which offers an accreditation program to which laboratories can voluntarily subscribe. A laboratory’s receipt of accreditation by the CAP satisfies the Medicare requirement for participation in proficiency testing programs administered by an external source. Our clinical laboratory facilities are CAP accredited.

FORWARD - LOOKING AND CAUTIONARY STATEMENTS

This Annual Report contains “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact, including, without limitation, the statements under “Management’s Discussion and Analysis of Financial Condition and Results of Operations” are “forward-looking statements.” Forward-looking statements may include the words “believes,” “expects,” “plans,” “intends,” “anticipates,” “continues” or other similar expressions. These statements are based on the Company’s current expectations of future events and are subject to a number of risks and uncertainties that may cause the Company’s actual results to differ materially from those described in the forward-looking statements. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, estimated or projected. The Company assumes no obligation to revise or update any forward-looking statements for any reason, except as required by law.

The Company files annual, quarterly and current reports, proxy statements and other information with the Securities and Exchange Commission (the “SEC”). These filings are available to the public via the Internet at the SEC’s website located at http://www.sec.gov. You may also read and copy any document the Company files with the SEC at the SEC’s public reference room located at 100 F Street, N.E., Washington, D.C. 20549. For more information, please call the SEC at 1-800-SEC-0330.

The Company’s website is located at www.enzo.com. The Company makes available on its website a link to all filings that it makes with the SEC. You may request a copy of the Company’s filings with the SEC (excluding exhibits) at no cost by writing or telephoning us at the following address or telephone number:

Enzo Biochem, Inc.

81 Executive Blvd. Suite 3

Farmingdale, NY 11735

Tel: (631) 755-5500

Attn: Investor Relations