NASDAQ: QNRX

Quoin Pharmaceuticals, Ltd.

CIK 0001671502 · Pharmaceutical Preparations

Micro Assets $16M as of Jun 25, 2026

We are a late-stage clinical specialty pharmaceutical company focused on the development and commercialization of therapeutic products that treat rare and orphan diseases for which there are currently either no approved or very limited treatments or cures. Our lead product, QRX003, is under… About this business →

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About Quoin Pharmaceuticals, Ltd.

Source: Item 1 (Business) from the 10-K filed March 26, 2026. Description as filed by the company with the SEC.

Item 1.Business

Company Overview

We are a late-stage clinical specialty pharmaceutical company focused on the development and commercialization of therapeutic products that treat rare and orphan diseases for which there are currently either no approved or very limited treatments or cures. Our lead product, QRX003, is under clinical development as a potential treatment for Netherton Syndrome (“NS”), a rare hereditary genetic disease. QRX003 is entering pivotal registrational clinical testing under an open Investigational New Drug (“IND”) application with the Food and Drug Administration (“FDA”). We have opened six clinical sites in the United States (“U.S.”) along with international sites that are being opened in the UK, Spain, France and the Netherlands. QRX003 is currently being tested in seven pediatric NS patients in investigator-initiated studies in Ireland, Austria, the Netherlands and New Zealand. QRX003 is also being developed as a potential treatment for Peeling Skin Syndrome with the first subject being treated in New Zealand. We are in the process of expanding this study to include up to an additional five pediatric subjects. We entered into a Research Agreement with the Queensland University of Technology (“QUT”) in Australia, under which we have obtained an option for a global license to QRX008 for the potential treatment of scleroderma, as well as a Research Agreement with The School of Pharmacy at University College Cork (“UCC”) for the development of novel topical formulations of rapamycin (sirolimus) as potential treatments for a number of rare and orphan diseases for which there are either limited or no approved therapies or cures, including microcystic lymphatic malformations, venous malformations and angiofibromas among others. We have also entered into 9 commercial partnerships for QRX003 spanning 61 countries outside of our core commercial territories of the U.S., Western Europe and Japan. These partnership countries include Canada, Australia, New Zealand, the Middle East, China, Taiwan, Hong Kong Singapore, Israel, Central and Eastern Europe, Turkey as well as several countries in Latin America.

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Our mission is to develop and commercialize proprietary therapeutic drug products that treat rare and orphan diseases, particularly for those diseases where no approved treatment currently exists. To achieve this, we plan to:

●complete the late-stage clinical testing of QRX003 in NS and, if successful, submit for marketing approval in the United States, Europe, Japan and the other territories for which we have commercial agreements in place;

●prepare to commercialize QRX003 by (i) establishing our own sales infrastructure in the U.S., Europe and Japan and (ii) work with our distribution partners to commercialize the product in Canada, Australia/New Zealand, the Middle East, China, Hong Kong, Taiwan, Latin America, Central and Eastern Europe, Turkey and Singapore;

●continue the development of QRX003 for Peeling Skin Syndrome and related rare, genetic skin diseases;

●commence clinical testing of one or more selected formulations of topical rapamycin; and

●pursue business development activities by seeking partnering, licensing, merger and acquisition opportunities or other transactions to further expand our pipeline and drug-development capabilities.

To date, no products have been commercialized and no revenue has been generated.

Our Product Candidates

QRX003

QRX003 is a topical lotion being developed for the treatment of a number of rare genetic skin diseases. Our most advanced program is for NS. The active ingredient in QRX003 is a broad-spectrum serine protease inhibitor whose mechanism of action is to target the kallikreins responsible for the process of skin shedding. Due to the genetic mutation of the SPINK5 gene, which results in the absence of the kallikreins that regulate Lympho-epithelial Kazal-type-related inhibitor (“LEKTI”) protein, a large, 15-domain serine protease inhibitor expressed in epithelial tissues, crucial for regulating skin barrier function and desquamation, these kallikreins go unregulated and become hyperactive resulting in the uncontrolled desquamation that leads to the highly defective skin barrier in NS patients. When applied to the skin, QRX003 is designed to perform the function of the missing LEKTI protein and down regulate, but not completely

stop, the activity of kallikreins, leading to a more normalized skin shedding process and the formation of a stronger and more effective skin barrier.

While several other companies are pursuing the development of products to treat NS, we believe, to date we are the only company that is actively dosing subjects in multiple NS clinical studies under an open IND with the FDA.

In light of the expected near-term completion of the QRX003 clinical program for NS, in July 2025 Quoin announced that it has discontinued the development of QRX007 for NS. QRX007 was being developed through Quoin’s research agreement with QUT.

QRX003 is also being developed as a potential treatment for Peeling Skin Syndrome, a rare genetic skin disease for which there is no approved treatment or cure. In addition, we are planning to pursue the development of QRX003 as a potential treatment for a number of Ichthyosis related disorders and SAM Syndrome potentially putting the product in position to become the first approved for four genetic skin diseases.

QRX008

In May 2022, we entered into a Research Agreement with QUT, pursuant to which we have an option for up to six months after the project completion to in-license a small molecule VLA - 4 inhibitor, the QRX008 product. QRX008 is a potential treatment for scleroderma, a rare autoimmune disease for which there is currently no approved treatment, and it is under early-stage development by QUT. We are planning to schedule a meeting with QUT to discuss the future direction of the research program.

QRX009

On June 10, 2024 we signed a research agreement with UCC. The scope of the agreement encompasses the development of novel topical formulations of rapamycin (sirolimus) as potential treatments for a number of rare and orphan diseases for which there are currently very limited or no approved therapies or cures. The research agreement provides that UCC will apply its proprietary dissolvable microneedle delivery technology along with other formulation approaches to optimize the local delivery of rapamycin and potentially enhance its therapeutic effectiveness as a potential treatment for several pre-identified clinical targets.

Under the terms of the agreement, we are funding a research program at UCC over an anticipated 2-1/2 year period to investigate the development of a number of topical rapamycin formulations for future development as potential treatments for several rare and orphan diseases, where it is believed that the drug’s mechanism of action may provide for clinical efficacy in these settings. Following completion of the research program, we will have the option to advance the clinical development of rapamycin formulations developed by UCC. The terms of the agreement do not require us to pay any upfront license or milestone fees or any royalties based on future product sales.

On November 11, 2025 we announced that the target loading concentrations for two topical rapamycin delivery technologies have been successfully achieved. Specifically, a rapamycin loading concentration of 4% w/w has been achieved for our proprietary topical formulation while an even higher rapamycin concentration of 5% w/w has been formulated in a proprietary dermal patch system. We plan to move forward with the manufacture of clinical trial and stability batches from at least one of the delivery technologies with a view to commencing clinical testing in the second half of 2026.

Our Current Product Pipeline

Netherton Syndrome

NS is a rare autosomal recessive genetic disease affecting an estimated 6,000 – 8,000 patients combined in the U.S. and Europe. NS is caused by a mutation in the SPINK5 gene and has an incidence of approximately 1/200,000 births. Under normal circumstances, the SPINK5 gene encodes a protein, called lympho-epithelial kazal type related inhibitor (“LEKTI”) that serves as a brake system on the activity of certain proteases (enzymes that digest proteins) in the skin called Kallikreins. The absence of the LEKTI protein, as a result of the genetic defect that causes NS, leads to unregulated protease activity in the skin by the Kallikreins, resulting in too few layers of the outer skin (stratum corneum), thereby leading to a highly defective and compromised skin barrier. As a result, patients with NS suffer from a variety of medical issues including regular, severe infections, skin cancer, chronic pruritus, asthma, and allergies among others.

Newborns with NS have reddened skin (erythroderma) and sometimes a thick parchment-like covering of skin (collodion membrane). The skin is red and scaly all over. Hair shafts are fragile and break easily due to trichorrhexis or “bamboo hair,” resulting in short sparse hair. In older children and adults, the scaling may have a distinctive circular pattern (ichthyosis linearis circumflexa). Babies with NS may be born prematurely. Trouble gaining weight in infancy and childhood is common and can be severe. Infants may also have recurrent skin infections and septicemia. They may develop hypernatremia (elevated sodium levels in the blood) due to excessive loss of fluid from the skin surface. Because hairs may not be affected at birth and then may be sparse in all babies in the first months of life, the characteristic hair defect that is diagnostic of NS may not be detected initially. Infants with NS may be misdiagnosed as having congenital ichthyosiform erythroderma, atopic dermatitis or psoriasis. Atopic dermatitis (red, itchy patches of skin) may be present, and a cradle cap-like scale and redness may appear on the face, scalp and eyebrows.

There are currently no approved therapies to treat NS. In the absence of an approved therapeutic product, patients can only obtain minor symptomatic relief, generally by the regular use of emollients and moisturizing creams and lotions. Other topical agents must be used with caution because the highly compromised skin in NS patients may allow ingredients from some topically applied medications to be excessively absorbed into the bloodstream, which may pose a danger to the patient. Use of topical keratolytic agents, such as urea or lactic acid derivatives, may be limited by skin irritation and is generally reserved for older children or adults. Base line treatment may

also include oral antihistamines, which can help to control the itchy, eczematous component, and topical or systemic antibiotics as needed. Oral and topical steroids and systemic biologics may be beneficial in reducing inflammation and the eczematous component of the disease. However, the well-documented side effects of long-term steroid use need to be carefully considered. There is a critical need for a new and effective treatment for NS.

Clinical and Regulatory Status of QRX003 for the Treatment of NS

Our lead asset, QRX003, is currently in late-stage clinical development in the U.S. under an open IND application with the FDA. We submitted an IND in March 2022 to the FDA to initiate a clinical study of QRX003 in adult NS patients. We received a ‘Study May Proceed’ notification from the FDA on June 13, 2022, for Study CL-QRX003-001.

Table 1 lists all completed, current and planned clinical studies for QRX003 in NS.

Study CL-QRX003-001 is a randomized vehicle controlled study. In Part A of the study, which recruited 11 subjects, two doses of QRX003 were tested against a vehicle control. In this part of the study a low potency cosmetic grade of the active ingredient was used. The test articles were applied once-daily to approximately 20% of the subject’s body surface area (“BSA”) over a 12 week period. In Part B of the study, which recruited 2 subjects, participants either received QRX003 containing 4% GMP grade DPHP or a vehicle control. The test articles were applied twice-daily to approximately 20% of BSA. Recruitment into this study has been completed and the data has not been unblinded as of yet.

In November 2022, we submitted a protocol for Study CL-QRX003-002 in NS patients to the FDA under our open IND and the study initiated in December 2022. In Part A of this study, which recruited 7 subjects, all participants received the low potency cosmetic grade DPHP once daily on approximately 20% BSA. All participants in this study had been receiving off-label systemic therapy prior to entry into the study and remained on that treatment throughout the duration of the study. Endpoints evaluated in Part A at Week 12 included change from baseline on the Investigator’s Global Assessment (“IGA”) scale (0-5), change from baseline on the Worst Itch-

Numeric Rating Scale (“WI-NRS”), a scale for the evaluation of pruritus or itch (0-10) and change from baseline on the Modified Ichthyosis Area Severity Index (“M-IASI”), which assesses the severity and extent of skin symptoms associated with ichthyosis (0-48).

The following Figure 1 outlines initial clinical data obtained from the first seven evaluable subjects from Part A of this study

FIGURE 1

Despite being treated once daily with low potency cosmetic grade DPHP, two of the 7 subjects achieved a one grade improvement from baseline for the IGA (scale of 0-4) at Week 12. In addition, five of the 7 subjects had a two-grade improvement from baseline for the WI-NRS (scale of 0-10) at Week 12. Although not powered for statistical significance, this result was nominally statistically significant with a p-value of 0.001. Furthermore, of the 5 subjects, whose WI-NRS was 4 or higher at baseline, three achieved a 4-grade improvement at Week 12 with 12 weeks once-daily application of cosmetic grade DPHP with a nominal p-value of 0.0579. The mean change in WI-NRS from baseline was -2.89, which was also nominally statistically significant.

In Part B of Study CL-QRX003-002, a single subject was tested with QRX003 containing 4% GMP grade DPHP twice-daily over a 12-week period on 20% BSA. The endpoints for Part B of the study were the same as those in Part A. The clinical data from this portion of the study are outlined in Table 2.

TABLE 2

End Point

Baseline

6 weeks

(Treatment period midpoint)

12 weeks

(End of treatment period)

M-IASI*

18

4

3

WI-NRS**

7

4

2

IGA***

3 (Moderate)

2 (Mild)

1 (Almost Clear)

At baseline, the subject had an IGA of 3 (moderate) which improved to 1 (almost clear) following twice daily treatment with QRX003, while the subject’s WI-NRS improved significantly a highly intrusive score of 7 to a very tolerable score of 2. Furthermore, for the M-IASI, the baseline score of 18 had significantly improved to 3 after 12 weeks of QRX003 treatment. The subject returned to

the clinical site at week 16 for final evaluation after treatment with QRX003 had been discontinued for 4 weeks. As outlined in Table 3, all assessed endpoints had returned to, or were worse than, baseline levels after treatment with QRX003 had been removed for 4 weeks.

TABLE 3

End Point

Baseline

6 weeks

(Treatment period midpoint)

12 weeks

(End of treatment period)

4 weeks post

discontinuation of

treatment

M-IASI*

18

4

3

18

WI-NRS**

7

4

2

8

IGA***

3 (Moderate)

(2) Mild

(1) Almost Clear

(3) Moderate

Following review of these clinical data, Study CL-QRX003-002 was converted to a ‘whole-body’ protocol Phase 2 study (Part C) where QRX003 is applied twice-daily over a 12-week period to approximately 80% BSA. This portion of the study is currently recruiting up to 8 evaluable subjects, and no data has been reported yet.

Study CL-QRX003-003 is a Phase 2 study that is being conducted by Dr. Amy Paller at Northwestern University. This study will recruit up to 8 evaluable subjects who will be treated twice-daily over a 12-week period with QRX003 on greater than 80% BSA. Unlike Study CL-QRX003-002, a majority of subjects in this study will not receive ongoing concurrent off-label systemic therapy. This study is currently recruiting and no data has been reported yet. Study CL-QRX003-004 is also a Phase 2 open-label study that will recruit up to 8 evaluable subjects, all of whom will fully wash out of any ongoing off-label systemic therapy prior to participation in the study. Participants will receive QRX003 twice-daily on greater than 80% BSA over a twelve-week period. Subjects are currently being screened for participation in the study and dosing has not been initiated as of yet.

Studies CL-QRX003-005 and CL-QRX003-006 are planned Phase 3 and 12-month Long Term Extension studies, respectively, which have not started yet.

In addition to the above studies, we are conducting an investigator-initiated clinical study of QRX003 in pediatric NS patients. The study is being conducted in Ireland, Austria, the Netherlands and New Zealand. Seven pediatric NS patients are currently being treated in the study. Table 4 outlines results for the one pediatric subject for which data are currently available.

TABLE 4

Endpoint*

Baseline

12 Month

Investigator Global Assessment

4 (Severe)

0 (Clear)

Pruritus

5

* IGA scale 0-4, Pruritus scale 0-10.

After 12 months of treatment with QRX003, the subject’s skin was adjudicated to be clear by the clinical assessor and their pruritus was rated as “no itch”, with both endpoints being scored at 0. In addition, the subject is experiencing zero nightly sleep disturbance and

has not required antibiotic, antiviral, antihistamine or glucocorticoid medication. Baseline and 12 month photos of the subject’s skin are illustrated in Figure 2 below. The subject continues to be treated with QRX003 and has experienced no treatment related adverse events.

FIGURE 2

We have received Orphan Drug Designation from the European Medicines Agency for QRX003, which would result in 10 years of market exclusivity in Europe upon approval. This designation offers benefits like scientific advice on study protocols and fee reductions.

The FDA has granted Rare Pediatric Disease Designation to QRX003 for the treatment of Netherton Syndrome, enabling potential Priority Review Voucher eligibility upon marketing approval for the treatment of NS. The FDA has also granted Orphan Drug Designation to QRX003 for the treatment of Netherton Syndrome. Furthermore, the FDA has granted Fast Track Designation to QRX003 for the treatment of NS.

On January 20, 2026, we announced that we had filed an application for Breakthrough Medicine Designation with the Saudi Food and Drug Authority (“SFDA”) for QRX003. The SFDA’s Breakthrough Medicine Designation program is designed to expedite the development, review, and potential availability of medicines that address serious or life-threatening conditions with high unmet medical need and which meet SFDA eligibility requirements. If granted, the designation will allow for accelerated regulatory review and could enable earlier patient access in Saudi Arabia.

On January 27, 2026, we announced that we had submitted an application to the Japanese Ministry of Health, Labour and Welfare (“MHLW”) for Orphan Drug Designation (“ODD”) for QRX003 for the treatment of Netherton Syndrome. The MHLW’s Orphan Drug Designation program provides orphan status to therapies intended for the treatment, diagnosis, or prevention of rare diseases that affect fewer than 50,000 people in Japan. This designation provides certain benefits, including R&D subsidies, tax credits for qualified clinical testing, reduction of MHLW application fees, priority review and ten years of market exclusivity, if approved.

On March 25, 2026, we provided a clinical and regulatory update from our constructive Type C meeting with U.S. FDA for QRX003 in NS. We reported that the FDA indicated that a single Phase 3 study may be sufficient to support marketing approval in the US and expressed openness to an alternative study design for Phase 3 that would likely not include a traditional upfront vehicle or placebo control (the “March Type C Meeting Minutes”). See Part II, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Recent Developments – Public and Private Offerings – October 2025 Private Placement” for a description of

the March Type C Meeting Minutes’ affect on the exercise period of the Series H Warrants issued in connection with the Company’s October 2025 private placement transaction.

Clinical and Regulatory Status of QRX003 for the Treatment of Peeling Skin Syndrome

On August 6, 2024, we announced the planned initiation of an investigator-led clinical study in New Zealand for QRX003 in pediatric patients with Peeling Skin Syndrome. This rare genetic condition currently has no approved treatments or cures. The first clinical site opened in and dosing of the patient commenced in December 2024. Quoin is actively evaluating additional clinical sites in other countries. Table 5 below outlines clinical results for the first pediatric patient for whom data is available

Table 5

End Point

Baseline

12 weeks

M-IASI*

36

12

IGA**

4 (Severe)

2 (Mild)

CDQLI***

19

11

After 12 weeks of treatment with QRX003, improvement was observed across all evaluated endpoints. The subject has now been treated with QRX003 for over one-year with continued improvement in skin appearance and texture. In addition, the subject’s pruritus has diminished significantly leading to markedly improved sleep function. Quoin is actively working to recruit up to an additional 5 pediatric subjects into this study.

Clinical and Regulatory Status of QRX009

Quoin is targeting submitting a pre-IND meeting request to the FDA for QRX009 before the end of Q2 of 2026 and to initiate clinical testing in one or more Proof of Concept (“POC”) studies before the end of 2026. The initial target indications for those POC clinical studies will be selected from Microcystic Lymphatic Malformations, Venous Malformations, Gorlin Syndrome, Epidermolysis Bullosa and Pachyonychia Congenita In addition, Quoin is planning to initiate a pharmacokinetic study for QRX009 in healthy volunteers in Q2 of 2026.

Commercial Strategy

QRX003 has the potential to become the first approved treatment for NS globally to reach the market and may therefore capture significant market share based on our own commercial infrastructure which we plan to establish in the U.S., Western Europe and Japan as well as from our commercial partnerships. We currently anticipate that QRX003, if approved, would be applied once or twice daily over the patient’s entire body. Because NS is a chronic disease and does not spontaneously resolve, we believe there is an opportunity for the product, should it be approved, for long-term chronic use.

We intend to self-commercialize QRX003, and other rare disease products the company may develop, if approved, in both the U.S. and Europe. We are also in the process of initiating the establishment of a Japanese subsidiary to facilitate the self-commercialization of QRX003 in Japan. Because of the very low number of patients and the fact that diagnosis and treatment are generally provided by a relatively small number of board-certified dermatologists in major urban areas, we believe this concentration of care will enable us to market QRX003 with a small, dedicated salesforce to target patients and caregivers in the U.S, Europe and Japan. Outside of these territories, we have currently established nine separate marketing partnerships for QRX003 that cover 61 different countries including Australia, New Zealand, the Middle East, Central and Eastern Europe, Turkey, Canada, China, Taiwan, Hong Kong, Singapore and the major countries in Latin America.

Once the commercial infrastructure has been established for QRX003 for NS, the subsequent approval and addition of new rare disease indications or products is not expected to result in a significant increase in the size of that infrastructure. In particular, we believe it is highly likely that physicians who treat patients with NS would also treat patients with Peeling Skin Syndrome, SAM Syndrome and other Ichthyosis related disorders, enabling our sales personnel to discuss several products, once approved, with each treating physician.

A key element of our commercial strategy will be to add new products to our portfolio beyond those which we develop ourselves. This will be achieved through in-licensing, acquisition or the establishment of research partnerships with universities or other institutions. While it is intended that these products will treat rare and orphan diseases, we may widen our scope of interest beyond rare skin diseases as we believe this will not add significant incremental burden to an already established commercial infrastructure.

Pricing

We have not concluded a formal pricing analysis of QRX003 in NS. We anticipate that pricing at launch may be influenced by the product label negotiated with the FDA, by pharmacoeconomic data developed to support pricing and the potential for greater sales under negotiated government contracts.

Competition

The clinical biotechnology industry is a competitive industry characterized by technological innovation and growth. Our competitors include other biotechnology and pharmaceutical companies, academic institutions, and public and private research institutions. These entities engage in efforts to research, discover and develop new medicines and treatments for substance use. These entities also seek patent protection and licensing revenues for their research results and may compete with us in recruiting skilled talent. Some of these entities are larger and better funded than us. Our management can make no assurances that we can effectively compete with these competitors. We also may be unable to keep pace with technological developments and other market factors. Currently, there are no approved products to treat NS. However, to our knowledge, there are a number of therapeutic products at various stages of development for the treatment of NS, including candidates from LifeMax Laboratories, Inc., Sixera Pharmaceuticals, ResVita Bio, BioCryst and Azitra Inc. As of now, to the best of our knowledge, only Azitra and BioCryst are actively dosing subjects in clinical studies of NS patients under an open IND.

Manufacturing

Our manufacturing strategy is to contract with third parties to manufacture our clinical and commercial active pharmaceutical ingredient (API) and drug product supplies. The formulation and processes used to manufacture our products are proprietary, and we have agreements with various third-party manufacturers and suppliers, such as Ferndale Contract Manufacturing and TopChem Pharmaceuticals Limited, that are intended to restrict these manufacturers from using or revealing any unpublished proprietary information.

Intellectual Property

Patents and Trademarks

Our success depends in part on our ability to obtain and maintain patents and other forms of intellectual property rights, including in-licenses of intellectual property rights of others, for our product candidates, methods used to develop and manufacture our product candidates and methods for treating patients using our product candidates, as well as our ability to preserve our trade secrets, to prevent third parties from infringing upon our proprietary rights and to operate without infringing upon the proprietary rights of others. The strength of patents in the biotechnology and pharmaceutical field involves complex legal and scientific questions and can be uncertain.

The following table lists patents and trademarks that we use in our business.

Patents

Trademarks

Patent applications directed to adjunctive therapy for NS with QRX003 filed by Quoin Pharmaceuticals Inc. in the U.S., Australia, Canada, China, Europe, Japan, Korea, and Mexico.

U.S. Trademark Registration No. 6918421 for word mark “RARE DISEASES ARE ONLY RARE IF YOU DON’T LIVE WITH ONE” filed by Quoin Pharmaceuticals, Inc.

U.S. patent application for high purity active ingredient for QRX003.

U.S. Trademark Registration No. 7071539 for design and words “Quoin Pharmaceuticals” filed by Quoin Pharmaceuticals, Inc.

U.S. Trademark Application No. 98/184,357 for word mark “QELTIQ” filed by Quoin Pharmaceuticals, Inc.

U.S. provisional patent application directed to rapamycin formulation for treatment of particular skin disorders

U.S. Trademark Application No. 98/850,670 for word mark “NETHERTON NOW: BECAUSE EVERYONE DESERVES TO FEEL COMFORTABLE IN THEIR OWN SKIN” filed by Quoin Pharmaceuticals, Inc.

U.S. provisional patent application directed to use of QRX003 according to a new dosage and for particular skin disorders.

U.S. Trademark Application No. 98/850,671 for word mark “NETHERTON NOW” filed by Quoin Pharmaceuticals, Inc.

PCT Application directed to adjunctive therapy for NS with QRX003 filed by Quoin Pharmaceuticals Inc.

License Agreement with Skinvisible

In October 2019, we entered into the Exclusive Licensing Agreement (as amended from time to time, the “License Agreement”) with Skinvisible Pharmaceuticals, Inc. (“Skinvisible”), under which Skinvisible granted us an exclusive royalty-bearing license relating to the production and manufacture of prescription drug products related to certain patents held by Skinvisible, including those related to QRX003 and QRX004. We made Skinvisible a one-time non-refundable, non-creditable license fee of $1 million (the “License Fee”). In addition, we agreed to pay Skinvisible a single digit royalty percentage of our net sales revenues for any licensed product covered by the patent rights licensed to us under the License Agreement. We also agreed to pay Skinvisible 25% of any revenues we receive as royalties in the event that we sublicense any licensed products to a third party. The License Agreement also requires that we make a $5 million payment to Skinvisible upon receiving approval in the U.S. for the first drug product developed using intellectual property licensed thereunder.

Trade Secrets

In addition to the protection afforded by patents, we rely on trade secret protection and confidentiality agreements to protect proprietary know-how that is not patentable, including processes for which patents are difficult to enforce and any other elements of our drug discovery and development processes that involve proprietary know-how, information or technology that is not covered by patents. Although each of our employees agrees to assign their inventions to us through an employee inventions agreement, and all of our employees, consultants, advisors and any third parties who have access to our proprietary know-how, information or technology are required to enter into confidentiality agreements, we cannot provide any assurances that all such agreements have been duly executed, that our trade secrets and other confidential proprietary information will not be disclosed or that competitors will not otherwise gain access to our trade secrets or independently develop substantially equivalent information and techniques.

Regulatory

General

Government authorities in the United States and other countries extensively regulate, among other things, the pre-clinical and clinical testing, manufacturing, labeling, storage, record-keeping, advertising, promotion, export, marketing and distribution of pharmaceutical products. In the United States, pharmaceutical products are subject to rigorous review under the Federal Food, Drug, and Cosmetic Act, and other federal statutes and regulations.

FDA Approval Process

To obtain approval of our product candidates from the FDA, we must, among other requirements, demonstrate in pre - clinical studies and well-controlled clinical trials that the product is safe and effective for its intended use and that the manufacturing facilities,

processes and controls are adequate to preserve the drug’s identity, strength, quality and purity. The drug approval process generally includes:

●pre - clinical laboratory tests, in vitro and in vivo pre - clinical studies and formulation and stability studies;

●the submission to the FDA of an application for human clinical testing, which is known as an IND application;

●adequate and well-controlled human clinical trials to demonstrate the safety and effectiveness of the drug;

●the submission to the FDA of a new drug application (“NDA”) for a drug; and

●satisfactory completion of an FDA inspection of the manufacturing facility or facilities at which the drug is produced to assess compliance with current GMP (“cGMP”) requirements to assure that the facilities, methods and controls are adequate to preserve the drug’s identity, strength, quality and purity;

●the approval by the FDA of an NDA.

Pre - clinical tests include laboratory evaluations of product chemistry, toxicity and formulation, as well as animal studies. Pre - clinical trials must also be conducted in accordance with FDA and comparable foreign authorities’ legal requirements, regulations or guidelines, including Good Laboratory Practice. Violations of these regulations can, in some cases, lead to invalidation of the studies, requiring them to be replicated. Before human clinical testing can begin, a sponsor must submit the results of the pre - clinical tests, together with manufacturing information and analytical data, to the FDA as part of the IND, a request for authorization from the FDA to administer an investigational new drug product to humans.

A 30-day waiting period after the submission of each IND is required prior to the commencement of clinical testing in humans. If the FDA has neither commented on nor questioned the IND within this 30-day period, the clinical trial proposed in the IND may begin. Clinical trials involve the administration of the investigational drug to healthy volunteers or patients under the supervision of a qualified investigator. Clinical trials must be conducted: (i) in compliance with federal regulations; (ii) in compliance with good clinical practices (“GCP”), an international standard meant to protect the rights and health of patients and to define the roles of clinical trial sponsors, administrators, and monitors; as well as (iii) under protocols detailing the objectives of the trial, the parameters to be used in monitoring safety, and the effectiveness criteria to be evaluated. Each protocol involving testing on U.S. patients and subsequent protocol amendments must be submitted to the FDA as part of the IND. Clinical trials must be conducted under the supervision of one or more qualified investigators pursuant to protocols detailing, among other things, the objectives of the trial, dosing procedures, subject selection and exclusion criteria and the safety and effectiveness criteria to be evaluated. For each institution where a clinical trial will be conducted, an institutional review board (“IRB”) must review and approve the clinical trial protocol and informed consent form required to be provided to each trial subject or his or her legal representative prior to a clinical trial commencing, and conduct on-going monitoring of the study until completed or termination to assure that appropriate steps are taken to protect the human subjects participating in the research.

The FDA may order the temporary or permanent discontinuation of a clinical trial at any time, or impose other sanctions, if it believes that the clinical trial either is not being conducted in accordance with FDA regulations or presents an unacceptable risk to the clinical trial patients. Imposition of a clinical hold may be full or partial. The IRB will also monitor the clinical trial until completed. An IRB may also require the clinical trial at the site to be halted, either temporarily or permanently, for failure to comply with the IRB’s requirements, or may impose other conditions. Additionally, some clinical trials are overseen by an independent group of qualified experts organized by the clinical trial sponsor, known as a data safety monitoring board or committee. This group provides authorization for whether a trial may move forward at designated checkpoints based on access to certain data from the trial.

Human clinical trials are typically conducted in three sequential phases that may overlap or be combined:

Phase 1: In Phase 1 studies, the product candidate is initially introduced into healthy human volunteers and tested for safety, dosage and tolerability, absorption, distribution, metabolism and excretion and, effect on the body.

Phase 2: Phase 2 studies are conducted in a limited patient population. These studies continue to evaluate safety while gathering preliminary data on effectiveness in patients with the targeted disease or condition.

Phase 3: Phase 3 trials further evaluate efficacy and safety in an expanded patient population, generally at geographically dispersed clinical study sites. These clinical trials are intended to establish the overall risk-benefit ratio of the product candidate

and provide, if appropriate, an adequate basis for product labeling. In many cases, particularly for prevalent diseases, the FDA requires two adequate and well-controlled Phase 3 clinical trials to demonstrate the safety and efficacy of the drug. In many other diseases, such as rare diseases, a single Phase 3 trial may be sufficient when supported by confirmatory evidence In other cases, though less common, a single Phase 3 trial may be sufficient when the trial is a large, multicenter trial demonstrating internal consistency and a statistically very persuasive finding of a clinically meaningful effect on mortality, irreversible morbidity or prevention of a disease with a potentially serious outcome and confirmation of the result in a second trial would be practically or ethically impossible.

Post-approval studies: sometimes referred to as Phase 4 studies, may be conducted after initial marketing approval. These studies are used to gather additional information about a product’s safety and/or efficacy in patients affected by the therapeutic indication.

After completion of the required clinical testing, an NDA is prepared and submitted to the FDA. FDA approval of the NDA is required before marketing and distribution of the product may begin in the United States. The NDA must include the results of all pre-clinical, clinical, and other testing and a compilation of data relating to the product’s pharmacology, chemistry, manufacture, and controls. The submission of most NDAs is subject to the payment of a substantial application user fee. Under an approved NDA, the applicant is also subject to an annual program fee. These fees typically increase annually. An NDA for a drug that has been designated as an orphan drug is not subject to an application fee, unless the NDA includes an indication for other than a rare disease or condition.

Pursuant to the current Prescription Drug User Fee Act (“PDUFA”) goals, FDA’s goal for acting on the submission of an NDA for a new molecular entity is ten months from the date the FDA files the NDA. The FDA conducts a preliminary review of an NDA within 60 days after submission to determine whether it is sufficiently complete to permit substantive review, before determining whether to file the NDA. This two-month preliminary review effectively extends the typical NDA review period to twelve months. In rare cases, the FDA may request additional information rather than file an NDA. In this event, the NDA must be resubmitted with the additional information. The resubmitted application also is subject to review before the FDA files it.

The FDA may also refer applications for novel pharmaceutical products, as well as pharmaceutical products that present difficult questions of safety or efficacy, to be reviewed by an advisory committee, typically a panel that includes clinicians, statisticians and other experts, for review, evaluation, and a recommendation as to whether the NDA should be approved. The FDA is not bound by the recommendation of an advisory committee but generally follows such recommendations. Before approving an NDA, the FDA will typically inspect one or more clinical sites to assure compliance with GCP. Additionally, the FDA will inspect the facility or the facilities at which the pharmaceutical product is manufactured. The FDA will not approve the product unless compliance with cGMP is satisfactory and the NDA contains data that provide substantial evidence that the drug is safe and effective in the respective claimed indication.

Following the FDA’s evaluation of an NDA, it will issue an approval letter or a complete response letter (“CRL”). An approval letter authorizes the sponsor to begin commercial marketing of the drug for specific indications. A CRL means that the review cycle of the application is complete and the application will not be approved in its present form. A CRL describes the specific deficiencies in the NDA identified by the FDA and may recommend actions that the applicant might take, including providing additional clinical data, such as an additional Phase 3 trial or other significant and time-consuming requirements related to clinical trials, nonclinical studies or manufacturing, to resolve the deficiencies. If a CRL is issued, the sponsor must resubmit the NDA addressing all of the deficiencies identified in the letter, or withdraw the application. Even if the sponsor submits the recommended data and information, the FDA may decide that the NDA does not satisfy the criteria for approval.

As condition to a product’s regulatory approval, the FDA may require a sponsor to conduct Phase 4 studies designed to further assess the drug’s safety and effectiveness after NDA approval, or may require other testing and surveillance programs to monitor the safety of the approved product. The FDA may also place other conditions on approval including the requirement for a risk evaluation and mitigation strategy (“REMS”) to assure the safe use of the drug. A REMS could include medication guides, communication plans to healthcare professionals or other elements to assure safe use, such as provider certification or training, restricted distribution methods, and patient registries.

There are a variety of regulations governing clinical trials and requirements for obtaining marketing approval for pharmaceutical products outside the United States. Whether or not FDA approval has been obtained, approval of a product by the comparable regulatory authorities of foreign countries and regions must be obtained prior to the commencement of marketing the product in those countries. The approval process varies from one regulatory authority to another and the time may be longer or shorter than that required for FDA approval. In the EU, Canada and Australia, regulatory requirements and approval processes are similar, in principle, to those in the United States.

Disclosure of Clinical Trial Information

Sponsors of clinical trials of FDA-regulated products, including drugs and biologic products, are required to register and disclose certain clinical trial information on the website www.clinicaltrials.gov. Information related to the product, patient population, phase of investigation, trial sites and investigators, and other aspects of a clinical trial are then made public as part of the registration. Sponsors are also obligated to disclose the results of their clinical trials after completion. Disclosure of the results of clinical trials can be delayed in certain circumstances for up to two years after the date of completion of the trial. Competitors may use this publicly available information to gain knowledge regarding the progress of clinical development programs as well as clinical trial design.

Pediatric Information

Under the Pediatric Research Equity Act (“PREA”), NDAs or supplements to NDAs must contain data to assess the safety and effectiveness of the drug product for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective. The FDA may grant full or partial waivers, or deferrals, for submission of data. Unless otherwise required by regulation, PREA does not apply to any product with orphan product designation except a product with a new active ingredient that is a molecularly targeted cancer product intended for the treatment of an adult cancer and directed at a molecular target determined by the FDA to be substantially relevant to the growth or progression of a pediatric cancer.

The Best Pharmaceuticals for Children Act (“BPCA”) provides a six-month extension of any patent or non-patent exclusivity for a drug if certain conditions are met. Conditions for exclusivity include the FDA’s determination that information relating to the use of a new drug in the pediatric population may produce health benefits in that population, the FDA making a written request for pediatric studies, and the applicant agreeing to perform, and reporting on, the requested studies within the statutory timeframe. Applications under the BPCA are treated as priority applications, with all of the benefits that designation confers.

Expedited Programs

The FDA is required to facilitate the development, and expedite the review, of drug products that are intended for the treatment of a serious or life-threatening disease or condition for which there is no effective treatment and which demonstrate the potential to address unmet medical needs for the condition. Fast track designation may be granted for products that are intended to treat a serious or life-threatening disease or condition for which there is no effective treatment and pre - clinical or clinical data demonstrate the potential to address unmet medical needs for the condition. Fast track designation applies to both the product and the specific indication for which it is being studied. Any product submitted to the FDA for marketing, including under a fast track program, may be eligible for other types of FDA programs intended to expedite development and review, such as priority review.

Priority review may be granted for products that are intended to treat a serious or life-threatening condition and, if approved, would provide a significant improvement in safety and effectiveness compared to available therapies. The FDA will attempt to direct additional resources to the evaluation of an application designated for priority review in an effort to facilitate the review.

The FDA is also required to expedite the development and review of applications for approval of products that are intended to treat a serious or life-threatening disease or condition where preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints. Under the breakthrough therapy program, the sponsor of a new product candidate may request that the FDA designate the product candidate for a specific indication as a breakthrough therapy concurrent with, or after, the submission of the IND for the product candidate. The FDA must determine if the product candidate qualifies for breakthrough therapy designation within 60 days of receipt of the sponsor’s request. The FDA may take certain actions with respect to breakthrough therapies, including holding meetings with the sponsor throughout the development process, providing timely advice to the product sponsor regarding development and approval, involving more senior staff in the review process, assigning a cross disciplinary project lead for the review team and taking other steps to design the clinical studies in an efficient manner.

Orphan Drug Designation

Pursuant to the Orphan Drug Act, the FDA may grant special status, or orphan designation, to a drug intended to treat a rare disease or condition, which is defined as a disease or condition that affects fewer than 200,000 individuals in the United States, or there is no reasonable expectation that the sales of the product will offset the cost of developing and making the drug available in the United States. A request for orphan drug designation must be submitted before the NDA is submitted. Following the grant of orphan designation, the FDA will publicly disclose the identity of the therapeutic drug candidate and its potential orphan use. Orphan designation does not shorten the duration of the regulatory review and approval process.

If a drug candidate with orphan designation subsequently receives the first FDA approval for the disease or condition for which it has orphan designation, the drug is entitled to a seven-year period of market exclusivity subject to certain exceptions (e.g., clinical superiority of a subsequent product). This means that the FDA may not approve another drug application authorizing another manufacturer to market the same drug for the same indication for seven years. This does not preclude competitors from receiving approval of the same product that has orphan exclusivity for a different indication or a different product for the same indication for which the orphan product has exclusivity. The orphan designation of a drug also provides the sponsor with certain financial incentives including tax credits and waiver of PDUFA fees.

The granting of an orphan drug designation does not shorten the duration of the regulatory review and approval process nor does it guarantee regulatory approval. The first applicant of a new drug application, or NDA, to receive FDA, approval for a particular active ingredient to treat a particular disease with FDA orphan drug designation is entitled to a seven - year exclusive marketing period in the United States for that product for that indication.

Rare Pediatric Disease Priority Review Voucher Program

Under the Rare Pediatric Disease Priority Review Voucher program, the FDA may award a priority review voucher to the sponsor of an approved marketing application for a product that treats or prevents a rare pediatric disease. The voucher entitles the sponsor to priority review of one subsequent marketing application.

A voucher may be awarded only for an approved rare pediatric disease product application. A rare pediatric disease product application is an NDA for a product that treats or prevents a serious or life-threatening disease in which the serious or life-threatening manifestations primarily affect individuals aged from birth to 18 years; in general, the disease must affect fewer than 200,000 such individuals in the U.S.; the NDA must be deemed eligible for priority review; the NDA must not seek approval for a different adult indication (i.e., for a different disease/condition); the product must not contain an active ingredient that has been previously approved by the FDA; and the NDA must rely on clinical data derived from studies examining a pediatric population such that the approved product can be adequately labeled for the pediatric population. Before NDA approval, the FDA may designate a product in development as a product for a rare pediatric disease, but such designation is not required to receive a voucher.

To receive a rare pediatric disease priority review voucher, a sponsor must notify the FDA, upon submission of the NDA, of its intent to request a voucher. If the FDA determines that the NDA is a rare pediatric disease product application and grants priority review, and if the NDA is approved, the FDA will award the sponsor of the NDA a voucher upon approval of the NDA. The FDA may revoke a rare pediatric disease priority review voucher if the product for which it was awarded is not marketed in the U.S. within 365 days of the product’s approval.

The voucher, which is transferable to another sponsor, may be submitted with a subsequent NDA or biologics license application (“BLA”) and entitles the holder to priority review of the accompanying NDA or BLA. The sponsor submitting the priority review voucher must notify the FDA of its intent to submit the voucher with the NDA or BLA at least 90 days prior to submission of the NDA or BLA and must pay a priority review user fee in addition to any other required user fee. The FDA must take action on an NDA or BLA under priority review within six months of receipt of the NDA or BLA.

The Rare Pediatric Disease Priority Review Voucher program was reauthorized in February 2026. Under the current statutory sunset provisions, the FDA may only award a priority review voucher for a rare pediatric disease application approved by September 30, 2029 unless the program is extended.

Post-Marketing Obligations

All approved drug products are subject to continuing regulation by the FDA, including record-keeping requirements, reporting of adverse experiences with the product, sampling and distribution requirements, notifying the FDA and gaining approval for certain manufacturing or labeling changes, complying with certain electronic records and signature requirements, submitting periodic reports to the FDA, maintaining and providing updated safety and efficacy information to the FDA, and complying with FDA promotion and advertising requirements. Failure to comply with the statutory and regulatory requirements can subject a manufacturer to possible legal or regulatory action, such as warning letters, suspension of manufacturing, seizure of product, injunctive action, criminal prosecution, or civil penalties.

The FDA may require post-marketing studies or clinical trials to develop additional information regarding the safety of a product. These studies or trials may involve continued testing of a product and development of data, including clinical data, about the product’s effects in various populations and any side-effects associated with long-term use. The FDA may require post-marketing studies or trials

to investigate known serious risks or signals of serious risks or identify unexpected serious risks and may require periodic status reports if new safety information develops. Failure to conduct these studies in a timely manner may result in substantial civil fines.

Drug manufacturers and their subcontractors are required to register their establishments with the FDA and certain state agencies, and to list their products with the FDA. The FDA periodically inspects manufacturing facilities in the United States and abroad in order to assure compliance with the applicable cGMP regulations and other requirements. Facilities also are subject to inspections by other federal, foreign, state or local agencies. In complying with the cGMP regulations, manufacturers must continue to assure that the product meets applicable specifications, regulations and other post-marketing requirements. Any third-party manufacturers must also maintain compliance with all applicable regulations and requirements. Failure to comply with these requirements subjects the manufacturer to possible legal or regulatory action, such as suspension of manufacturing or recall or seizure of product.

Also, newly discovered or developed safety or efficacy data may require changes to a product’s approved labeling, including the addition of new warnings and contraindications, additional pre-clinical or clinical studies, or even in some instances, revocation or withdrawal of the approval. Violations of regulatory requirements at any stage, including after approval, may result in various adverse consequences, including the FDA’s withdrawal of an approved product from the market, other voluntary or FDA-initiated action that could delay or restrict further marketing, and the imposition of civil fines and criminal penalties against the NDA holder. In addition, later discovery of previously unknown problems may result in restrictions on the product or NDA holder, including withdrawal of the product from the market. Furthermore, new government requirements may be established that could delay or prevent regulatory approval of our products under development, or affect the conditions under which approved products are marketed.

Data Privacy

We are subject to various laws and regulations globally regarding privacy and data protection, including laws and regulations relating to the collection, storage, handling, use, disclosure, transfer and security of personal information. The legislative and regulatory environment regarding privacy and data protection is continuously evolving and developing and the subject of significant attention globally. Certain privacy and data protection laws, such as the Health Insurance Portability and Accountability Act (HIPAA) and the California Consumer Privacy Act (CCPA), may not apply to us directly at this time, but those laws may apply to the investigators, health care professionals, third party payors, and business partners with whom we have relationships and so may apply to our processing of personal information that we receive from or share with such third parties. We may also engage service providers, such as contract research organizations, to process personal information on our behalf. We cannot ensure that all our contractors, vendors, licensees, business partners or collaborators will comply with all applicable privacy and data protection laws and regulations. The failure to comply with these current and future laws could result in significant penalties and reputational harm and could have a material adverse effect on our business and results of operations.

Pricing and Reimbursement

In both the United States and foreign markets, the ability to successfully commercialize product candidates that have obtained regulatory approval by the FDA or other governmental authorities depends in significant part on the availability of adequate financial coverage and reimbursement from third party payors, including, in the U.S., governmental payors such as Medicare and Medicaid, managed care organizations, and private commercial health insurers. There is significant uncertainty related to the insurance coverage and reimbursement of newly approved products. In the United States, the principal decisions about reimbursement for new products are typically made by the Centers for Medicare & Medicaid Services (“CMS”). Private payors tend to follow CMS to a substantial degree. However, no uniform or consistent policy of coverage and reimbursement for drug products exists among third-party payors. Therefore, coverage and reimbursement for drug products can differ significantly from payor to payor as well as from state to state. Consequently, the coverage determination process is often a time-consuming and costly process that must be played out across many jurisdictions and different entities. Further, a payor’s decision to provide coverage for a drug product does not imply that an adequate reimbursement rate will be approved.

In addition, direct or indirect governmental price regulation may affect the prices that we may charge for product candidates. For example, in the United States and some foreign jurisdictions, the prices of pharmaceutical products are subject to direct price controls (by law) and to drug reimbursement programs with varying price control mechanisms. There have been, and we expect there will continue to be, legislative and regulatory proposals to change the healthcare system in ways that could significantly affect the pharmaceutical industry, including the Patient Protection and Affordable Care Act of 2010 and the Inflation Reduction Act of 2022. We anticipate that in the U.S., Congress, state legislatures, and private sector entities will continue to consider and may adopt healthcare policies intended to curb rising healthcare costs.

Healthcare Reform

In the United States, there have been, and continue to be, proposals by the federal government, state governments, regulators and third-party payors to control or manage the increased costs of health care and, more generally, to reform the U.S. healthcare system. Healthcare reforms that have been adopted, and that may be adopted in the future, could result in further reductions in coverage and levels of reimbursement for pharmaceutical products, increases in rebates payable under U.S. government rebate programs and additional downward pressure on pharmaceutical product prices. There has been increasing legislative and enforcement interest in the United States with respect to drug pricing practices.

For example, several healthcare reform initiatives culminated in the enactment of the Inflation Reduction Act (“IRA”) in August 2022, which, among other things, requires the U.S. Department of Health and Human Services (“HHS”) to directly negotiate the selling price of a statutorily specified number of drugs and biologics each year that CMS reimburses under Medicare Part B and Part D. The negotiated price may not exceed a statutory ceiling price. Only high-expenditure single-source drugs that have been approved for at least 7 years (11 years for single-source biologics) are eligible to be selected by CMS for negotiation, with the negotiated price taking effect two years after the selection year. For 2026, the first year in which negotiated prices become effective, CMS selected 10 high-cost Medicare Part D products in 2023, negotiations began in 2024, and the negotiated maximum fair price for each product has been announced. In addition, CMS selected and announced the negotiated maximum fair price for 15 additional Medicare Part D drugs, which will become effective in 2027. For 2028, CMS has selected an additional 15 drugs, comprised of drugs covered under Medicare Part D and, for the first time, drugs payable under Medicare Part B. For 2029 and subsequent years, 20 Part B or D drugs will be selected. The negotiated prices have represented, and will continue to represent, a significant discount from average prices to wholesalers and direct purchasers. Currently, a drug or biological product that has an orphan drug designation for only one rare disease or condition will be excluded from the IRA’s price negotiation requirements, but loses that exclusion if it has designations for more than one rare disease or condition, or if is approved for an indication that is not within that single designated rare disease or condition, unless such additional designation or such disqualifying approvals are withdrawn by the time CMS evaluates the drug for selection for negotiation. However, as a result of a statutory amendment enacted in July 2025, beginning with the 2028 negotiated price applicability year, a drug may be designated for more than one rare disease or condition and still be excluded from price negotiation, as long as the only approved indications are for such rare diseases or conditions. The IRA also imposes rebates on Medicare Part B and Part D drugs whose prices have increased at a rate greater than the rate of inflation and in 2024, CMS finalized regulations for the Medicare Part B and Part D inflation rebates. The IRA permits the Secretary of HHS to implement many of these provisions through guidance, as opposed to regulation, for the initial years. Manufacturers that fail to comply with the IRA may be subject to various penalties, including civil monetary penalties. These provisions have been and may continue to be subject to legal challenges. It is unclear what policies will be advanced with respect to IRA implementation and other drug pricing proposals.

In addition, in May 2025, the administration published an executive order regarding most favored nation (“MFN”) drug pricing, which is sometimes referred to as international reference pricing. This executive order directs HHS to communicate MFN price targets to pharmaceutical manufacturers, and if significant progress towards MFN pricing is not delivered, to propose a rule making plan to implement MFN pricing. Recently, on December 23, 2025, CMS issued proposed regulations to establish, under the Center for Medicare and Medicaid Innovation, two mandatory MFN demonstration models under Medicare Parts B and D, respectively. If these rules or other MFN pricing rules are finalized, they are likely to mandate reduced prices of at least some drugs in the United States, if they are also sold in comparator countries.

At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access, and marketing cost disclosure and transparency measures, and in some cases, designed to encourage importation from other countries and bulk purchasing. It is unclear to what extent additional statutory, regulatory, and administrative initiatives will be enacted and implemented.

Regulatory Authorities Outside the United States

In the European Union, governments influence the price of pharmaceutical products through their pricing and reimbursement rules and control of national healthcare systems that fund a large part of the cost of such products to consumers. The approach taken varies from member state to member state. Some jurisdictions operate positive and/or negative list systems under which products may be marketed only once a reimbursement price has been agreed. Other member states allow companies to fix their own prices for medicines but monitor and control company profits. The downward pressure on healthcare costs in general, particularly prescription drugs, has become very intense. As a result, increasingly high barriers are being erected to the entry of new products, as exemplified by the role of the National Institute for Health and Clinical Excellence in the United Kingdom, which evaluates the data supporting new medicines and passes reimbursement recommendations to the government. In addition, in some countries cross-border imports from low-priced markets (parallel imports) exert commercial pressure on pricing within a country.

Environmental and Safety Laws

We do not use, handle, store, or dispose of hazardous materials and our operations do not produce hazardous waste. Accordingly, we are not subject to federal, state and local regulations relating to the use, handling, storage and disposal of hazardous materials. Any waste generated is non-hazardous and is disposed of by third party contractors. Likewise, given that we have less than 10 employees, we are not subject to the recordkeeping requirements under the Occupational Safety and Health Administration (“OSHA”) although other OSHA regulations may apply. OSHA and/or the Environmental Protection Agency may promulgate regulations that may affect our research and development programs.

We are also subject to various laws and regulations governing laboratory practices and the experimental use of animals.

Human Capital

As of December 31, 2025, we had four full-time employees and two part-time employees. Our employees are not represented by any collective bargaining agreements, and we have never experienced an organized work stoppage.

Enforceability of Civil Liabilities

To the extent any of our shareholders may seek to enforce a U.S. judgment in Israel against us or our executive officers and directors, or to assert U.S. securities law claims in Israel, shareholders may have difficulties enforcing such a U.S. judgment, including judgments based upon the civil liability provisions of the U.S. federal securities laws, in Israel.

We have been informed by our legal counsel in Israel that it may be difficult to assert U.S. securities laws claims in original actions instituted in Israel. Israeli courts may refuse to hear a claim based on a violation of U.S. securities laws because 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 which can be a time-consuming and costly process. Matters of procedure will also be governed by Israeli law.

We have irrevocably appointed Quoin Pharmaceuticals, Inc., as our agent to receive service of process in any action against us in any U.S. federal or state court arising out of this offering or any purchase or sale of securities in connection with this offering. Subject to specified time limitations and legal procedures, Israeli courts may enforce a U.S. judgment in a civil matter which is non-appealable, including a judgment based upon the civil liability provisions of the Securities Act or the Exchange Act and including a monetary or compensatory judgment in a non-civil matter, provided that, among other things:

●the judgment was rendered by a court of competent jurisdiction, according to the laws of the state in which the judgment is given;

●the judgment is enforceable according to the laws of Israel and according to the law of the foreign state in which the relief was granted; and

●the judgment is not contrary to public policy of Israel.

Even if such conditions are met, an Israeli court may not declare a foreign civil judgment enforceable if:

●the prevailing law of the foreign state in which the judgment is rendered does not allow for the enforcement of judgments of Israeli courts (subject to exceptional cases);

●the defendant did not have a reasonable opportunity to be heard and to present his or her evidence, in the opinion of the Israeli court;

●the enforcement of the civil liabilities set forth in the judgment is likely to impair the security or sovereignty of Israel;

●the judgment was obtained by fraud;

●the judgment was rendered by a court not competent to render it according to the rules of private international law prevailing in Israel;

●the judgment conflicts with any other valid judgment in the same matter between the same parties; or

●an action between the same parties in the same matter was pending in any Israeli court or tribunal at the time at which the lawsuit was instituted in the foreign court.

If a foreign judgment is enforced by an Israeli court, it generally will be payable in Israeli currency, which can then be converted into non-Israeli currency and transferred out of Israel. The usual practice in an action before an Israeli court to recover an amount in a non-Israeli currency is for the Israeli court to issue a judgment for the equivalent amount in Israeli currency at the rate of exchange in force on the date of the judgment, but the judgment debtor may make payment in foreign currency. Pending collection, the amount of the judgment of an Israeli court stated in Israeli currency ordinarily will be linked to the Israeli consumer price index plus interest at the annual statutory rate set by Israeli regulations prevailing at the time. Judgment creditors must bear the risk of unfavorable exchange rates.

Company Information

We were incorporated under the laws of the State of Israel in 1986 under the name Montiger Ltd. Between 1986 and 2021, we underwent several name changes, including the name change to Cellect Biotechnology Ltd. (“Cellect”). On October 28, 2021, Cellect completed the business combination with Quoin Pharmaceuticals, Inc., a Delaware corporation (“Quoin Inc.”), in accordance with the terms of the Agreement and Plan of Merger and Reorganization, dated as of March 24, 2021 (the “Merger Agreement”), by and among Cellect, Quoin Inc. and CellMSC, Inc., a Delaware corporation and wholly-owned subsidiary of Cellect (“Merger Sub”), pursuant to which Merger Sub merged with and into Quoin Inc., with Quoin Inc. surviving as a wholly-owned subsidiary of Cellect (the “Merger”). Immediately after completion of the Merger, Cellect changed its name to “Quoin Pharmaceuticals Ltd.”

Prior to January 1, 2023, we qualified as a “foreign private issuer” as such term is defined in Rule 405 under the Securities Act. Since January 1, 2023, we have been obligated to file or furnish reports, proxy statements, and other information on U.S. domestic issuer forms with the Securities and Exchange Commission (the “SEC”), which are more detailed and extensive in certain respects, and which must be filed more promptly, than the forms available to a foreign private issuer.

The address of our executive corporate offices is 42127 Pleasant Forest Ct., Ashburn, VA 20148, and our telephone number is (703) 980-4182. Our website is www.quoinpharma.com. Information contained on or accessible through this website is not incorporated by reference in, or otherwise a part of, this Annual Report, and any references to this website are intended to be inactive textual references only.

Available Information

We are subject to the informational requirements of the Exchange Act and in accordance therewith, we file reports, proxy and information statements and other information with the SEC. You can read our SEC filings over the Internet at the SEC’s website at www.sec.gov. Our filings with the SEC are also available free of charge on the investors section of our website at www.quoinpharma.com. Our filings are available free of charge as soon as reasonably practicable after we electronically file them with, or furnish them to, the SEC. From time to time, we also use multiple social media channels to communicate with the public about Quoin and its products. It is possible that the information we post on social media could be deemed to be material information. Therefore, we encourage you to review the information we post on such social media channels as our LinkedIn page (https://www.linkedin.com/company/quoin-pharmaceuticals/) and our Twitter account (@Quoinpharma). This list may be updated from time to time on our investor relations website.

Information contained on or accessible through the websites and social media channels referred to above is not incorporated by reference in, or otherwise a part of, this Annual Report, and any references to these websites and social media channels are intended to be inactive textual references only.

Smaller Reporting Company

We are a “smaller reporting company” as defined in the Securities Exchange Act of 1934, as amended (the “Exchange Act”). As a result, we may take advantage of certain reduced disclosure obligations available to smaller reporting companies, including reduced disclosure about our executive compensation arrangements and the requirements to provide only two years of audited financial statements in our annual reports and registration statements. We will continue to be a “smaller reporting company” as long as (1) we have a public float (i.e., the market value of our ADSs held by non-affiliates) less than $250 million calculated as of the last business

day of our most recently completed second fiscal quarter, or (2) our annual revenues are less than $100 million for our previous fiscal year and we have either no public float or a public float of less than $700 million as of the end of that fiscal year’s second fiscal quarter. Decreased disclosures in our SEC filings due to our status as a “smaller reporting company” may make it harder for investors to analyze our results of operations and financial prospects.