Enlivex (ENLV) Risk Analysis

Before a marketing application is approved, or before we begin the commercial manufacture of any of our products, CMOs and other outsourced manufacturing service providers we may engage must obtain regulatory approval of their manufacturing facilities, processes and quality systems. In addition, pharmaceutical manufacturing facilities are continuously subject to inspection by EMA and foreign regulatory authorities before and after product approval. Due to the complexity of the processes used to manufacture pharmaceutical products and product candidates, any potential third-party manufacturer may be unable to continue to pass or initially pass federal, state or international regulatory inspections in a cost-effective manner. The EMA and foreign regulators require manufacturers to register manufacturing facilities. The EMA and foreign regulators also inspect these facilities to confirm compliance with requirements that the EMA or foreign regulators establish. We, to the extent we may manufacture our products in the future, or our materials suppliers may face manufacturing or quality control problems causing product production and shipment delays or a situation where we or the supplier may not be able to maintain compliance with the EMA's or foreign regulators' requirements necessary to continue manufacturing our product candidate. Any failure to comply with EMA or foreign regulatory requirements could adversely affect our clinical research activities and our ability to develop and market our product candidate and any future product candidates. If a third-party manufacturer with whom we contract is unable to comply with manufacturing regulations, we may be subject to fines, unanticipated compliance expenses, recall or seizure of our products, total or partial suspension of production and/or enforcement actions, including injunctions, and criminal or civil prosecution. These possible sanctions would adversely affect our financial results and financial condition.

In Europe and in other countries, sales of our products, if any, will depend in part upon the availability of reimbursement from third-party payors, which include governmental authorities, managed care organizations and other private health insurers. Third-party payors are increasingly challenging the price and examining the cost effectiveness of medical products and services. Increasing expenditures for healthcare have been the subject of considerable public attention in Europe and the United States. Both private and government entities are seeking ways to reduce or contain healthcare costs. Numerous proposals that would effect changes in the European and U.S. healthcare systems have been introduced or proposed, including reducing reimbursement for prescription products and reducing the levels at which consumers and healthcare providers are reimbursed for purchases of pharmaceutical products. Although we cannot predict the full effect on our business of the implementation of existing legislation or the enactment of additional legislation pursuant to healthcare and other legislative reform, we believe that legislation or regulations that would reduce reimbursement for, or restrict coverage of, our products could adversely affect how much or under what circumstances healthcare providers will prescribe or administer our products. This could materially and adversely affect our business by reducing our ability to generate revenue, raise capital, obtain additional collaborators and market our products. In addition, we believe the increasing emphasis on managed care in the United States has and will continue to put pressure on the price and usage of pharmaceutical products, which may adversely impact product sales.

We have invested almost all of our efforts and financial resources in the research and development of Allocetra™. As a result, our business is primarily dependent on our ability to complete the development of, obtain regulatory approval for and successfully commercialize Allocetra™. The process to develop, obtain regulatory approval for and commercialize Allocetra™ is long, complex and costly, and its outcome is uncertain. The research, testing, manufacturing, labeling, approval, sale, marketing and distribution of drugs and pharmaceutical products, including biologics, are subject to extensive regulation by the FDA, the EMA and regulatory agencies in other countries. These regulations differ from jurisdiction to jurisdiction. We are not permitted to market Allocetra™, or any other product candidate, in the United States until we receive approval of a biologics license application ("BLA") from the FDA, or in the European Union until we receive a marketing authorization application ("MAA") from the EMA, or in any foreign countries until we receive the requisite approval from the respective regulatory agencies in such countries. We have not received regulatory clearance to conduct the clinical trials that are necessary to file a BLA with the FDA or comparable applications to other regulatory authorities in other countries or received marketing approval for Allocetra™. The results of clinical trials may be unsatisfactory, even if we believe those clinical trials to be successful, the FDA, or other regulatory authorities, may not approve our BLA should we be in a position to file one. Approval procedures vary among countries and can involve additional product testing and additional administrative review periods. The time required to obtain approval in other countries might differ from that required to obtain FDA approval. The marketing approval process in other countries may include all of the risks detailed above regarding FDA approval in the United States as well as other risks. In particular, in many countries outside the United States, it is required that a product receives pricing and reimbursement approval before it can be commercialized. This can result in substantial delays in such countries. In other countries, product approval depends on showing superiority to an approved alternative therapy. This can result in significant expense for conducting complex clinical trials. If we fail to comply with regulatory requirements in the United States or international markets or to obtain and maintain required approvals or if regulatory approvals in the United States or international markets are delayed, our target market will be reduced and our ability to realize the full market potential of our products will be harmed. Marketing approval in one jurisdiction does not ensure marketing approval in another, but a failure or delay in obtaining marketing approval in one jurisdiction may have a negative effect on the regulatory process in others. Failure to obtain marketing approval in other countries or any delay or setback in obtaining such approval would impair our ability to develop foreign markets for Allocetra™ or any other product candidate. This would reduce our target market and limit the full commercial potential of Allocetra™ or any other product candidate.

The EMA and other regulatory agencies strictly regulate promotional claims about prescription products. In particular, a product may not be promoted for uses that are not approved by the EMA or such other regulatory agencies as reflected in the product's approved labeling. In particular, any labeling approved by such regulatory agencies for our products, if any, may also include restrictions on use. Such regulatory agencies may impose further requirements or restrictions on the distribution or use of our products as part of a mandatory plan, such as limiting prescribing to certain physicians or medical centers that have undergone specialized training, limiting treatment to patients who meet certain safe-use criteria and requiring treated patients to enroll in a registry. If we receive marketing approval for our product candidates, physicians may nevertheless prescribe our products to their patients in a manner that is inconsistent with the approved label. If we are found to have promoted such "off-label" uses, we may become subject to significant liability. In particular, the U.S. federal government has levied large civil and criminal fines against companies for alleged improper promotion and has enjoined several companies from engaging in off-label promotion. The EMA has also requested that companies enter into consent decrees or permanent injunctions under which specified promotional conduct is changed or curtailed.

Changes in regulatory requirements and guidance or unanticipated events during our clinical trials may occur, and as a result, we may need to amend our clinical trial protocols. Amendments may require us to resubmit our clinical trial protocols to IRBs for review and approval, which may adversely affect the cost, timing and successful completion of a clinical trial. If we experience delays in the completion of, or if we terminate, any of our clinical trials, the commercial prospects for our affected product candidates would be harmed and our ability to generate product revenue would be delayed, possibly materially.

Even if we complete our planned clinical trials and believe the results to be successful, all of which are uncertain, obtaining approval of a BLA, or similar regulatory application, is an extensive, lengthy, expensive and uncertain process, and the EMA, IMOH, the FDA and other regulatory agencies may delay, limit or deny approval of our product candidates for many reasons, including: - we may not be able to demonstrate to the satisfaction of the applicable regulatory agencies that our product candidates are safe and effective for any indication;- the results of our clinical trials may not meet the level of statistical significance or clinical significance required by the applicable regulatory agencies for approval;- the applicable regulatory agencies may disagree with the number, design, size, conduct or implementation of our clinical trials;- the applicable regulatory agencies may not find the data from preclinical studies and clinical trials sufficient to demonstrate that our product candidates' clinical and other benefits outweigh their respective safety risks;- the applicable regulatory agencies may disagree with our interpretation of data from preclinical studies or clinical trials;- the applicable regulatory agencies may not accept data generated at our clinical trial sites;- the data collected from preclinical studies and clinical trials of our product candidates may not be sufficient to support the submission of a BLA or similar regulatory application;- the applicable regulatory agencies may not schedule an advisory committee meeting in a timely manner or the advisory committee may recommend against approval of our application or may recommend that the applicable regulatory agencies require, as a condition of approval, additional preclinical studies or clinical trials, limitations on approved labeling or distribution and use restrictions;- the applicable regulatory agencies may require development of a risk evaluation and mitigation strategy as a condition of approval;- the applicable regulatory agencies may require simultaneous approval for both adults and children which would delay needed approvals, or we may have successful clinical trial results for adults, but not children, or vice versa;- the applicable regulatory agencies may change their approval policies or adopt new regulations that may impede consideration or approval of our BLA, or similar regulatory application;- the applicable regulatory agencies may identify deficiencies in the manufacturing processes or facilities of third-party manufacturers, or suppliers of blood and cell samples or providers of cell collection, freezing and transportation services, with which we enter into agreements for clinical and commercial supplies; and - the applicable regulatory agencies may demand post-marketing approval studies, such as Phase IV clinical trials, in connection with our product candidates. For example, in the sepsis clinical vertical, before we can submit a marketing application, or similar regulatory application, to EMA, or other regulatory authorities, as applicable, we will first be required to conduct a Phase II clinical trial and then must conduct pivotal Phase III clinical trials. The Company recently announced, in light of the encouraging results of the Phase Ib clinical trial of AllocetraTM in patients with severe sepsis, the Company initiated in the first quarter of 2021 a randomized, controlled Phase IIb clinical trial, which is expected to recruit up to 160 patients. The Company expects to obtain interim results from this study during 2021 or early 2022, and top-line results during 2022. With respect to Allocetra™ for the treatment of severe and critical COVID-19 patients, before we can submit a marketing application, or similar regulatory application, to EMA, or other regulatory authorities, as applicable, we may first be required to conduct additional Phase II clinical trials and then must conduct pivotal Phase III clinical trials that will be substantially broader than our previously conducted Phase II trial. However, certain regulations in Europe may allow us to obtain conditional marketing authorization in Europe for some of our products for certain indications that are classified as unmet medical need and fall under certain guidelines. We will also need to obtain FDA clearance prior to commencing any trials in the United States. Phase III clinical trials frequently produce unsatisfactory results even though prior clinical trials were successful. Therefore, the results of the additional trials that we conduct may or may not be successful. The applicable regulatory agencies may suspend all clinical trials or require that we conduct additional clinical, nonclinical, manufacturing, validation or drug product quality studies and submit those data before considering or reconsidering the marketing application, or similar regulatory application. Depending on the extent of these, or any other studies, approval of any applications that we submit may be delayed by several years, or may require us to expend more resources than we have available. It is also possible that additional studies, if performed and completed, may not be considered sufficient by the applicable regulatory agencies to provide regulatory approval. If any of these outcomes occur, we likely would not receive approval for Allocetra™, or any of our other product candidates, and may be forced to cease operations. Even if we obtain regulatory approval for Allocetra™, or any of our other product candidates, the approval might contain significant limitations related to the intended uses for which the product is approved, including, without limitation, restrictions related to certain labeled populations, age groups, warnings, precautions or contraindications, or an approval may be subject to significant post-marketing studies or risk mitigation requirements. If we are unable to successfully commercialize Allocetra™, or any of our other product candidates, we may be forced to cease operations.

We incur significant legal, accounting and other expenses as a public company, including costs relating to public company reporting obligations under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). and regulations regarding corporate governance practices. Our management and other personnel devote a substantial amount of time to ensure that we comply with all of these requirements. Moreover, the reporting requirements, rules and regulations result in considerable legal and financial compliance costs. Any changes we make to comply with these obligations may not be sufficient to allow us to satisfy our obligations as a public company on a timely basis, or at all. These reporting requirements, rules and regulations, coupled with the increase in potential litigation exposure associated with being a public company, could also make it more difficult for us to attract and retain qualified persons to serve on our board of directors (the "Board", or the "Board of Directors") or board committees or to serve as executive officers, or to obtain certain types of insurance, including directors' and officers' insurance, on acceptable terms. We are subject to Section 404 of The Sarbanes-Oxley Act of 2002, or Section 404, and the related rules of the SEC, which generally require our management and independent registered public accounting firm to report on the effectiveness of our internal control over financial reporting. During the course of our review and testing of our internal controls, we may identify deficiencies and be unable to remediate them before we must provide the required reports. Furthermore, if we have a material weakness in our internal controls over financial reporting, we may not detect errors on a timely basis and our financial statements may be materially misstated. We or our independent registered public accounting firm may not be able to conclude on an ongoing basis that we have effective internal control over financial reporting, which could harm our operating results, cause investors to lose confidence in our reported financial information and cause the trading price of our shares to fall.

The Company plans to initiate during 2021, subject to regulatory approval, a randomized, controlled Phase IIb or III of AllocetraTM in severe and critical COVID-19 patients hospitalized in medical centers in Israel and certain European countries. The final decision to initiate either a Phase IIb or a Phase III is subject to regulatory feedback. The Company plans to recruit up to 150 patients for the Phase IIb or Phase III, with the option to expand the study to recruit additional patients. In the case the study will be a Phase III, EMA, Israeli Ministry of Health ("IMOH") and other regulatory agencies do not have any clear guidance on which endpoints of a Phase III clinical trial would be sufficient for approval of a drug for the treatment of any indication. Therefore, the development pathway for Allocetra™ for the treatment of COVID-19 patients or the other Indications, as well as our other product candidates is not completely clear. For example, even if the EMA approves a certain primary endpoint for a pivotal clinical trial, and the trial meets that primary endpoint, EMA may still deny approval of a conditional or permanent marketing application for various reasons. It is possible that even if the results of a potential Phase III clinical trial meet the primary endpoints for a particular product candidate, EMA may still require longer-term studies of that product candidate prior to granting marketing approval. In addition, clinical trial results acceptable to EMA and/or IMOH may not be acceptable to the FDA, and as such additional studies would be requested by the FDA prior to a potential approval of Allocetra™ for the treatment of COVID-19 in the U.S.

There are extensive international and U.S. federal and state laws and regulations prohibiting fraud and abuse in the healthcare industry that can result in significant criminal and civil penalties. Such U.S. federal laws include: the anti-kickback statute, which prohibits certain business practices and relationships, including the payment or receipt of compensation for the generation of business that will be paid by Medicare or other federal healthcare programs; the physician self-referral prohibition, commonly referred to as the Stark Law; the anti-inducement law, which prohibits providers from offering anything to a Medicare or Medicaid beneficiary to induce that beneficiary to use items or services covered by either program; the False Claims Act, which prohibits any person from knowingly presenting or causing to be presented false or fraudulent claims for payment by the federal government, including the Medicare and Medicaid programs; and the Civil Monetary Penalties Law, which authorizes the U.S. Department of Health and Human Services to impose civil penalties administratively for fraudulent or abusive acts. In addition, the Affordable Care Act requires drug manufacturers to report to the government any payments to physicians for consulting services and the like. Many jurisdictions outside the United States have similar anti-kickback, fraud and abuse, and healthcare laws and regulations, and we could be subject to these laws and regulations to the extent that we operate in such jurisdictions. Sanctions for violating these federal laws include criminal and civil penalties that range from punitive sanctions, damage assessments, monetary penalties, imprisonment, denial of Medicare and Medicaid payments or exclusion from the Medicare and Medicaid programs, or both, and debarment. As federal and state budget pressures continue, federal and state administrative agencies may also continue to escalate investigation and enforcement efforts to reduce or eliminate waste and to control fraud and abuse in governmental healthcare programs. Private enforcement of healthcare fraud has also increased, due in large part to amendments to the Civil False Claims Act in 1986 that were designed to encourage private persons to sue on behalf of the government. Efforts to ensure compliance with any of these federal, state and other fraud and abuse laws and regulations may involve substantial costs, and a violation of the same could have a material adverse effect on our liquidity and financial condition. An investigation into the use by physicians of any of our products, if ever commercialized, may dissuade physicians from either purchasing or using them, and could have a material adverse effect on our ability to commercialize those products.

Our products and product candidates could cause adverse effects. These adverse effects may not be observed in clinical trials, but may nonetheless occur in the future. If any of these adverse effects occur, they may render our product candidates ineffective or harmful in some patients, and our sales would suffer, materially adversely affecting our business, financial conditions and results of operations. In addition, potential adverse effects caused by our product candidates, or products, could lead to product liability claims. Product liability claims might be brought against us by consumers, healthcare providers or others coming into contact with our products. If we cannot successfully defend ourselves against product liability claims, we could incur substantial liabilities. In addition, regardless of merit or eventual outcome, product liability claims may result in: - decreased demand for our product candidates for which we obtain marketing approval;- impairment of our business reputation and exposure to adverse publicity;- increased warnings on product labels;- withdrawal of clinical trial participants;- costs of related litigation;- distraction of management's attention from our primary business;- substantial monetary awards to patients or other claimants;- loss of revenue; and - the inability to successfully commercialize our product candidates for which we obtain marketing approval.

We were and continue to be organized in Israel. Substantially all of our executive officers and directors reside outside of the United States, and all of our assets and most of the assets of these persons are located outside of the United States. Therefore, a judgment obtained against us, or any of these persons, including a judgment based on the civil liability provisions of the U.S. federal securities laws, may not be collectible in the United States and may not necessarily be enforced by an Israeli court. It also may be difficult for you to effect service of process on these persons in the United States or to assert U.S. securities law claims in original actions instituted in Israel. Additionally, it may be difficult for an investor, or any other person or entity, to initiate an action with respect to U.S securities laws in Israel. Israeli courts may refuse to hear a claim based on an alleged violation of U.S securities laws reasoning that Israel is not the most appropriate forum in which to bring such a claim. In addition, even if an Israeli court agrees to hear a claim, it may determine that Israeli law and not U.S law is applicable to the claim. If U.S. law is found to be applicable, the content of applicable U.S law must be proven as a fact by expert witnesses, which can be a time consuming and costly process. Certain matters of procedure will also be governed by Israeli law. There is little binding case law in Israel that addresses the matters described above. As a result of the difficulty associated with enforcing a judgment against us in Israel, you may not be able to collect any damages awarded by either a U.S. or foreign court.

Even if Allocetra™, or any of our other product candidates, receives marketing approval, we or others may later identify undesirable side effects caused by the product, and, in that event, a number of potentially significant negative consequences could result, including, without limitation: - regulatory authorities may suspend or withdraw their approval of the product;- regulatory authorities may require the addition of labeling statements, such as warnings or contraindications or distribution and use restrictions, or they may require that these statements be placed in a black box on the product's labeling;- regulatory authorities may require us to issue specific communications to healthcare professionals, such as "Dear Doctor" letters;- regulatory authorities may issue negative publicity regarding the affected product, including safety communications;- we may be required to change the way the product is administered, conduct additional preclinical studies or clinical trials or restrict or cease the distribution or use of the product; and - we could be sued and held liable for harm caused to patients, and in certain cases, certain relatives. Any of these events could prevent us from achieving or maintaining market acceptance of the affected product candidate and could substantially increase commercialization costs or even force us to cease operations.

We may not be able to commence or complete the clinical trials required to support our submission of a BLA to the FDA or a MAA to the EMA or any similar submission to regulatory authorities in other countries. Drug development is a long, expensive and uncertain process, and delay or failure can occur at any stage of any of our clinical trials. The fact that the FDA, EMA or other regulatory authorities permit a company to conduct human clinical trials is no guarantee that the trial will be successful. To the contrary, most product candidates that enter clinical trials do not prove to be successful and do not result in the filing of a BLA, MAA or similar filing. Drug candidates that prove successful at one clinical trial phase may prove unsuccessful at a subsequent phase. Human clinical trials are very expensive and difficult to design and implement, in part because they are subject to rigorous regulatory requirements and in part because the results of clinical trials are inherently uncertain and unpredictable. Regulatory authorities, such as the FDA, may preclude clinical trials from proceeding. Additionally, the clinical trial process is time-consuming, and failure can occur at any stage of the trials. We may encounter problems that cause us to abandon or repeat clinical trials. The commencement and completion of clinical trials may be delayed by several factors, including: - difficulties obtaining regulatory clearance or approval to commence a clinical trial or complying with conditions imposed by a regulatory authority regarding the scope or term of a clinical trial;- delays in reaching or failing to reach agreement on acceptable terms with prospective contract research organizations ("CROs"), contract manufacturing organizations ("CMOs"), pharmaceutical shipping companies and trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs, CMOs, shipping companies and trial sites;- insufficient or inadequate supply or quality of a product candidate or other materials necessary to conduct our clinical trials;- difficulties in obtaining institutional review board ("IRB") approval to conduct a clinical trial at a prospective site;- delays resulting from a decision of the FDA not to review a BLA for Allocetra™, or any of our other product candidates, under the FDA's Fast Track Development Program or as a Breakthrough Therapy; and - challenges in recruiting and enrolling patients or donors to participate in clinical trials for a variety of reasons, including size and nature of patient population, proximity of patients to clinical sites, eligibility criteria for the trial, nature of trial protocol, the availability of approved effective treatments for the relevant disease and competition from other clinical trial programs for similar indications. Clinical trials may also be delayed or terminated as a result of ambiguous or negative interim results. In addition, a clinical trial may be suspended or terminated by us, the FDA or other regulatory authorities, the IRBs at the sites where such boards are overseeing a trial, or a data safety monitoring board overseeing the clinical trial at issue or other regulatory authorities due to a number of factors, including: - failure to conduct the clinical trial in accordance with regulatory requirements or our clinical protocols;- inspection of the clinical trial operations or trial sites by the FDA or other regulatory authorities;- unforeseen safety issues or lack of effectiveness; and - lack of adequate funding to continue the clinical trials. In addition, we or regulatory authorities may suspend our clinical trials at any time if it appears that we are exposing participants to unacceptable health risks, or if others report that similar products pose an unacceptable risk to patients, or if the regulatory authorities find deficiencies in our regulatory submissions or the conduct of such trials. Any suspension of clinical trials will delay possible regulatory approval, if any, and adversely affect our ability to develop products and generate revenue.

Upon the completion of any clinical trial, the results might not support the outcomes sought by us. Further, success in preclinical testing and early clinical trials does not ensure that later clinical trials will be successful, and the results of later clinical trials may not replicate the results of prior clinical trials and preclinical testing. A number of companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in late-stage clinical trials even after achieving promising results in early-stage development. Accordingly, the results from the completed preclinical studies and clinical trials for Allocetra™ may not be predictive of the results we may obtain in later stage trials of Allocetra™ or clinical trials of any of our other product candidates. Our clinical trials may produce negative or inconclusive results, and we may decide, or regulators may require us, to conduct additional clinical trials. Moreover, clinical data are often susceptible to varying interpretations and analyses, and many companies that believed their product candidates performed satisfactorily in preclinical studies and clinical trials have nonetheless failed to obtain FDA or EMA, or other regulatory agency, approval for their products. In addition, the clinical trial process may fail to demonstrate that Allocetra™ is safe and effective for its indicated uses. Any such failure may cause us to abandon Allocetra™ and may delay development of other product candidates. Any delay in, or termination or suspension of, our clinical trials will delay the requisite filings with the FDA or other regulatory agencies and, ultimately, our ability to commercialize our product candidates and generate revenues. If the clinical trials do not support our product claims, the completion of development of such product candidate may be significantly delayed or abandoned, which will significantly impair our ability to generate revenues and will materially adversely affect our results of operations.

The USPTO and various foreign governmental patent agencies require compliance with a number of procedural, documentary, fee payment and other provisions during the patent process. There are situations in which non-compliance can result in abandonment or lapse of a patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. In such an event, competitors might be able to enter the market earlier than would otherwise have been the case.

Our ability to obtain and maintain patent protection and trade secret protection for our intellectual property and proprietary technologies, our products and their uses is important to our commercial success. We rely on a combination of patent, copyright, trademark and trade secret laws, non-disclosure and confidentiality agreements, licenses, assignment of inventions agreements and other restrictions on disclosure and use to protect our intellectual property rights. We also rely on trade secrets to protect our proprietary know-how and technological advances, especially where we do not believe patent protection is appropriate or obtainable. However, trade secrets are difficult to protect. We rely in part on confidentiality agreements with our employees, consultants, outside scientific collaborators, sponsored researchers and other advisors to protect our trade secrets and other proprietary information. These agreements, to the extent they are in place and in effect, may not effectively prevent disclosure of confidential information and may not provide an adequate remedy in the event of unauthorized disclosure of confidential information. In addition, others may independently discover our trade secrets and proprietary information. Costly and time-consuming litigation could be necessary to enforce and determine the scope of our proprietary rights. Failure to obtain or maintain trade secret protection could enable competitors to use our proprietary information to develop products that compete with our product candidates or products or cause additional material adverse effects upon our competitive business position. We cannot be certain that the steps that we have taken will prevent the misappropriation or other violation of our confidential information and other intellectual property, particularly in foreign countries in which laws may not protect our proprietary rights as fully as in the United States and other developed economies. Moreover, if we lose any key personnel, we may not be able to prevent these persons from impermissibly disclosing or using our technical knowledge or other trade secrets. If we are unable to maintain the security of our proprietary technology, this could materially adversely affect our competitive advantage, business and results of operations.

Our commercial success depends significantly on our ability to operate without infringing the patents and other intellectual property rights of third parties. For example, there could be issued patents of which we are not aware that our products infringe. There also could be patents that we believe we do not infringe, but that we may ultimately be found to infringe. Moreover, patent applications are in some cases maintained in secrecy until patents are issued. The publication of discoveries in the scientific or patent literature frequently occurs substantially later than the date on which the underlying discoveries were made and patent applications were filed. Because patents can take many years to issue, there may be currently pending applications of which we are unaware that may later result in issued patents that our products infringe. For example, pending applications may exist that provide support or can be amended to provide support for a claim that results in an issued patent that our product infringes. Third parties may assert that we are employing their proprietary technology without authorization. If a court held that any third-party patents are valid, enforceable and cover our products or their use, the holders of any of these patents may be able to block our ability to commercialize our product candidates or products unless we obtained a license under the applicable patents, or until the patents expire. In addition to litigation proceedings which may be filed against us, we may not be able to enter into licensing arrangements or make other arrangements at a reasonable cost or on reasonable terms. Any inability to secure licenses or alternative technology could result in delays in the introduction of our products or lead to prohibition of the manufacture or sale of products by us.

Certain of our intellectual property rights are and may in the future continue to be licensed from third parties, including universities and/or strategic partners. Such third parties may not protect the intellectual property rights that we license from them and we may be unable to defend such intellectual property rights on our own (even if we contractually agree to manage, maintain and defend such rights) or we may have to undertake costly litigation to defend the intellectual property rights of such third parties. There can be no assurances that we will continue to have proprietary rights to any of the intellectual property that we license from such third parties or otherwise have the right to use through similar strategic relationships. Any loss or limitations on use with respect to such intellectual property licensed from third parties or otherwise obtained from third parties with whom we have entered into strategic relationships could have a material adverse effect on our business, results of operations and financial condition.

As is the case with other pharmaceutical and biotechnology companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining and enforcing patents in the pharmaceutical and biotechnology industries involve both technological and legal complexity. Therefore, obtaining and enforcing related patents is costly, time-consuming and inherently uncertain. In particular, the United States has recently enacted, and is currently implementing changes in the law, including wide-ranging patent reform legislation. The U.S. Supreme Court and the U.S. Court of Appeals for the Federal Circuit have ruled on several patent cases in recent years, and could do so again in the future, either narrowing the scope of patent protection available in certain circumstances or weakening the rights of patent owners in certain situations. In addition, the U.S. Patent and Trademark Office, or the USPTO, has implemented patentability guidelines that may render the subject matter of a patent as non-patentable based on a lack of utility. In addition to increasing uncertainty with regard to our ability to obtain patents in the future, this combination of events has created uncertainty with respect to the value of patents, once obtained. Depending on decisions by applicable courts and legislatures in the countries in which we may pursue patent protection, including those of the U.S. Congress, the federal courts and the USPTO, the laws and regulations governing patents and the interpretations of such laws could change in unpredictable ways that would weaken our ability to obtain new patents or to enforce our existing patents and patents that we might obtain in the future.

The laws of some foreign countries do not protect intellectual property rights to the same extent as the laws of the United States. Many companies have encountered significant problems in protecting and defending intellectual property rights in certain foreign jurisdictions. This risk is exacerbated for us because we expect our product candidates will be manufactured and used in a number of countries. The legal systems of some countries, particularly developing countries, do not favor the enforcement of patents and other intellectual property protection, especially those relating to life sciences. This could make it difficult for us to stop the infringement of our other intellectual property rights. For example, several foreign countries have compulsory licensing laws under which a patent owner must grant licenses to third parties. In addition, some countries limit the enforceability of patents against third parties, including government agencies or government contractors. In these countries, patents may provide limited or no benefit. Although most jurisdictions in which we have applied for, intend to apply for, or have been issued patents have patent protection laws similar to those of the United States, some of them do not. For example, in the future, we may consider doing business in South America, Eurasia, China and Indochina, and the countries in these regions may not provide the same or similar protection as that provided in the United States. Additionally, due to uncertainty in patent protection law, we have not filed applications in many countries where significant markets exist, including, without limitation, South American countries, Eurasian countries, African countries and Taiwan. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of our business. Accordingly, our efforts to protect our intellectual property rights in such countries may be inadequate. In addition, changes in the law and legal decisions by courts in the United States and foreign countries may affect our ability to obtain adequate protection for our technology and the enforcement of intellectual property.

Any patents issued to us will not ensure the protection of our intellectual property for a number of reasons, including, without limitation, the following: - any issued patents may not be broad or strong enough to prevent competition from other products including identical or similar products;- if we are not awarded patents or if issued patents expire or are declared invalid or not infringed, there may be no protections against competitors attempting to make "bio-similars";- there may be prior art of which we are not aware that may affect the validity or enforceability of a patent claim;- there may be other patents or pending patent applications existing in the patent landscape for our product candidates that will affect our freedom to operate;- if our patents are challenged, a court could determine that they are not valid or enforceable;- a court could determine that a competitor's technology or product does not infringe our patents;- our patents could irretrievably lapse due to failure to pay fees or otherwise comply with regulations, or could be subject to compulsory licensing; and - if we encounter delays in our development or clinical trials, the period of time during which we could market our products under patent protection would be reduced.

In January 2019 we completed construction of a new facility in Israel for the manufacture of Allocetra™ for the planned clinical trials that will be conducted in the EU or Israel. We do not have experience in manufacturing products on a commercial scale or using automated processes and we have limited personnel. In addition, because we are not aware of any company that has manufactured Allocetra™ for clinical use, there are limited precedents from which we can learn. If we do not receive regulatory approval for Allocetra™, our costs for the construction and maintenance of the manufacturing facility may exceed revenue derived from the sale of products manufactured at such facility. If we do not have sufficient revenues to cover the costs of the manufacturing facility, we may need to shut down the facility at a loss or borrow or raise funds to maintain the facility until sufficient revenues can be generated. We may encounter difficulties in the manufacture of our products due to our limited manufacturing experience and resources. These difficulties could delay the build-out and equipping of a commercial manufacturing facility and regulatory approval of the manufacture of our products, increase our costs or cause production delays or result in us not manufacturing sufficient product to meet our expected commercial requirements, any of which could damage our reputation and hurt our profitability. If we are unable to successfully increase our manufacturing capacity to commercial scale, our business may be materially adversely affected.

The commercial success of our product candidates and any future product candidate for which we obtain marketing approval from the EMA, or other regulatory authorities, will depend on the breadth of its approved labeling and upon the acceptance of the product by the medical community, including physicians, patients and third-party payors. The degree of market acceptance of any approved product will depend on a number of factors, including, without limitation: - demonstration of clinical safety and efficacy compared to other products;- ability of physicians to accurately diagnose the targeted indications;- the relative convenience and ease of administration;- the prevalence and severity of any adverse side effects;- limitations or warnings contained in the product's approved labeling;- distribution and use restrictions imposed by the EMA, or other regulatory agencies, or agreed to by us as part of a mandatory or voluntary risk management plan;- availability of alternative treatments, including a number of competitive products already approved or expected to be commercially launched in the near future;- pricing and cost effectiveness;- the effectiveness of our, or any future collaborators', sales and marketing strategies;- our ability to obtain sufficient third-party coverage or reimbursement; and - the willingness of patients to pay for drugs out of pocket in the absence of third-party coverage. If any of our product candidates is approved, but does not achieve an adequate level of acceptance by physicians, third-party payors and patients, we may not generate sufficient revenue from the product, and we may not become profitable. In addition, our efforts to educate the medical community and third-party payors on the benefits of the product may require significant resources and may never be successful.

In addition to any healthcare reform measures that may affect reimbursement, market acceptance and sales of our future products, if any, will depend on the reimbursement policies of government authorities and third-party payors. Government authorities and third-party payors, such as private health insurers and health maintenance organizations, decide which medications they will pay for and establish reimbursement levels. A primary trend in the European and U.S. healthcare industries, as well as elsewhere, is cost containment. Government authorities and these third-party payors have attempted to control costs by limiting coverage and the amount of reimbursement for particular medications. We cannot be sure that reimbursement will be available for our future products, if any, and, if reimbursement is available, the level of reimbursement. Reimbursement may impact the demand for, or the price of, any product for which we obtain marketing approval. In addition, third-party payors are likely to impose strict requirements for reimbursement in order to limit off-label use of a higher priced drug or treatment. Reimbursement by a third-party payor may depend upon a number of factors including the third-party payor's determination that use of a product is: - a covered benefit under its health plan;- safe, effective and medically necessary;- appropriate for the specific patient;- cost-effective; and - neither experimental nor investigational. Obtaining coverage and reimbursement approval for a product from a government or other third-party payor is a time-consuming and costly process that could require us to provide supporting scientific, clinical and cost effectiveness data for the use of our products to the payor. We may not be able to provide data sufficient to gain acceptance with respect to coverage and reimbursement. We cannot be sure that coverage or adequate reimbursement will be available for our future products. Also, we cannot be sure that reimbursement amounts will not reduce the demand for, or the price of, our future products. If reimbursement is not available, or is available only to limited levels, we may not be able to commercialize our product candidate, or any future product candidates, profitably, or at all, even if approved.