Aldeyra Therapeutics, Inc.

Previous wording

Adverse developments affecting the biotechnology industry, which could adversely affect our current and projected business operations, our financial condition, and our results of operations.

Current wording

Adverse developments affecting the biotechnology industry, which could adversely affect our current and projected business operations, financial condition, and results of operations.

Previous wording

Our ability to generate revenue will depend on the successful development, regulatory approval and commercialization of reproxalap. We submitted an NDA for reproxalap for the treatment of the signs and symptoms of dry eye disease in December 2022. In February 2023, the FDA accepted the Reproxalap NDA for filing and set a PDUFA date of November 23, 2023. On November 27, 2023, we announced that we had received a Complete Response Letter from the FDA (the reproxalap Complete Response Letter). In the reproxalap Complete Response Letter, the FDA stated that the NDA did not demonstrate “efficacy in treating ocular symptoms associated with dry eyes” and that “at least one additional adequate and well-controlled study to demonstrate a positive effect on the treatment of ocular symptoms of dry eye” should be conducted. On November 16, 2023, prior to receiving the reproxalap Complete Response Letter, we submitted to the FDA a Special Protocol Assessment (SPA) for a proposed Phase 3 dry eye disease chamber crossover clinical trial (the chamber crossover trial). A SPA is an advanced declaration from the FDA that a planned trial’s design, clinical endpoints, and statistical analyses could potentially result in data acceptable for FDA review towards approval for the proposed indication. In response to the SPA, the FDA issued a SPA - No Agreement letter which provided feedback to us on the proposed chamber crossover trial. Based on the feedback, we amended the design and protocol of the chamber crossover trial and, per FDA SPA Guidance, held a Type A meeting with the FDA. The chamber crossover trial, as announced on August 8, 2024, achieved the primary endpoint (P=0.004) of reducing patient-reported ocular discomfort in a dry eye chamber. In October 2024, we filed the Resubmitted NDA, which included results from the completed chamber crossover trial. On November 18, 2024, we announced that the FDA had accepted for review the Resubmitted NDA and assigned a PDUFA date of April 2, 2025. On April 3, 2025, we announced that we had received a Complete Response Letter from the FDA (2025 Complete Response Letter, and collectively with the reproxalap Complete Response Letter, the Complete Responses Letters). In the 2025 Complete Response Letter, the FDA stated that the Resubmitted NDA “failed to demonstrate efficacy in adequate and well controlled studies in treating ocular symptoms associated with dry eyes” and that “at least one additional adequate and well controlled study to demonstrate a positive effect on the treatment of ocular symptoms of dry eye” should be conducted. The letter identified concerns with the data from the trial submitted to the NDA that may have affected interpretation of the results, which the FDA stated may be related to methodological issues, including a difference in baseline scores across treatment arms. We announced the results from the two additional dry eye disease trials in the second quarter of 2025. Pending discussions with the FDA, we…

Excerpt shortened here; the source contains the full paragraph.

Current wording

Our ability to generate revenue will depend on the successful development, regulatory approval and commercialization of reproxalap. We submitted an NDA for reproxalap for the treatment of the signs and symptoms of dry eye disease in December 2022. In February 2023, the FDA accepted the Reproxalap NDA for filing and set a PDUFA date of November 23, 2023. On November 27, 2023, we announced that we had received a Complete Response Letter from the FDA (the reproxalap Complete Response Letter). In the reproxalap Complete Response Letter, the FDA stated that the NDA did not demonstrate “efficacy in treating ocular symptoms associated with dry eyes” and that “at least one additional adequate and well-controlled study to demonstrate a positive effect on the treatment of ocular symptoms of dry eye” should be conducted. On November 16, 2023, prior to receiving the reproxalap Complete Response Letter, we submitted to the FDA a Special Protocol Assessment (SPA) for a proposed Phase 3 dry eye disease chamber crossover clinical trial (the chamber crossover trial). A SPA is an advanced declaration from the FDA that a planned trial’s design, clinical endpoints, and statistical analyses could potentially result in data acceptable for FDA review towards approval for the proposed indication. In response to the SPA, the FDA issued a SPA - No Agreement letter which provided feedback to us on the proposed chamber crossover trial. Based on the feedback, we amended the design and protocol of the chamber crossover trial and, per FDA SPA Guidance, held a Type A meeting with the FDA. The chamber crossover trial, as announced on August 8, 2024, achieved the primary endpoint (P=0.004) of reducing patient-reported ocular discomfort in a dry eye chamber. In October 2024, we submitted the Reproxalap NDA, which included results from the completed chamber crossover trial. On November 18, 2024, we announced that the FDA had accepted for review the Reproxalap NDA and assigned a PDUFA date of April 2, 2025. On April 3, 2025, we announced that we had received a Complete Response Letter from the FDA (2025 Complete Response Letter, and collectively with the reproxalap Complete Response Letter, the Complete Responses Letters). In the 2025 Complete Response Letter, the FDA stated that the Reproxalap NDA “failed to demonstrate efficacy in adequate and well controlled studies in treating ocular symptoms associated with dry eyes” and that “at least one additional adequate and well controlled study to demonstrate a positive effect on the treatment of ocular symptoms of dry eye” should be conducted. The letter identified concerns with the data from the trial submitted to the NDA that may have affected interpretation of the results, which the FDA stated may be related to methodological issues, including a difference in baseline scores across treatment arms. On May 5, 2025, we announced the results from the two additional dry eye disease trials. The dry eye chamber trial achieved the primary en…

Excerpt shortened here; the source contains the full paragraph.

Previous wording

Additionally, the FDA has substantial discretion in the approval process and may disagree with our interpretation of, or the sufficiency of, the data from our clinical trials. Clinical trial results frequently are susceptible to varying interpretations, and regulatory authorities may disagree on what are appropriate methods for analyzing data, which may delay, limit, or prevent regulatory approvals. There can be no assurance that the potential NDA resubmission to the FDA will be accepted and/or approved in a timely manner or at all. If marketing approval for reproxalap is delayed, limited, or denied, our ability to market reproxalap, and our ability to generate product sales, would be adversely affected. Even if reproxalap is approved for the treatment of dry eye disease, the FDA may limit use to certain patient populations, include extensive warnings on the product labeling, or require costly ongoing requirements for post-marketing clinical studies and surveillance or other risk management measures to monitor the safety or efficacy of reproxalap.

Current wording

Additionally, the FDA has substantial discretion in the approval process and may disagree with our interpretation of, or the sufficiency of, the data from our clinical trials. Clinical trial results frequently are susceptible to varying interpretations, and regulatory authorities may disagree on what are appropriate methods for analyzing data, which may delay, limit, or prevent regulatory approvals. There can be no assurance that the NDA resubmission to the FDA will be approved in a timely manner or at all. If marketing approval for reproxalap is delayed, limited, or denied, our ability to market reproxalap, and our ability to generate product sales, would be adversely affected. Even if reproxalap is approved for the treatment of dry eye disease, the FDA may limit use to certain patient populations, include extensive warnings on the product labeling, or require costly ongoing requirements for post-marketing clinical studies and surveillance or other risk management measures to monitor the safety or efficacy of reproxalap.

Previous wording

As part of our growth strategy, we plan to evaluate the development and commercialization of other therapies related to immune-mediated and metabolic diseases. We will evaluate internal opportunities from our compound libraries, and also may choose to continue to in-license or acquire other product candidates, as well as commercial products, to treat patients suffering from immune-mediated and metabolic disorders with high unmet medical needs and limited treatment options. New product candidates will require additional, time-consuming development efforts prior to commercial sale, including preclinical studies, clinical trials, and approval by the FDA and/or applicable foreign regulatory authorities. In-licensed product candidates may have been unsuccessfully developed by others in indications similar to those that we may pursue. All product candidates are prone to the risks of failure that are inherent in pharmaceutical product development, including the possibility that the product candidate will not be shown to be sufficiently safe and/or effective for approval by regulatory authorities. For example, in June 2023, we received a Complete Response Letter from the FDA regarding our NDA for ADX‑2191 for the treatment of primary vitreoretinal lymphoma (the ADX‑2191 Complete Response Letter). The ADX‑2191 Complete Response Letter stated that there was a “lack of substantial evidence of effectiveness” due to “a lack of adequate and well-controlled investigations” in the literature-based NDA submission. In light of the FDA’s ADX‑2191

Current wording

As part of our growth strategy, we plan to evaluate the development and commercialization of other therapies related to immune-mediated and metabolic diseases. We will evaluate internal opportunities from our compound libraries, and also may choose to continue to in-license or acquire other product candidates, as well as commercial products, to treat patients suffering from immune-mediated and metabolic disorders with high unmet medical needs and limited treatment options. New product candidates will require additional, time-consuming development efforts prior to commercial sale, including preclinical studies, clinical trials, and approval by the FDA and/or applicable foreign regulatory authorities. In-licensed product candidates may have been unsuccessfully developed by others in indications similar to those that we may pursue. All product candidates are prone to the risks of failure that are inherent in pharmaceutical product development, including the possibility that the product candidate will not be shown to be sufficiently safe and/or effective for approval by regulatory authorities. For example, in June 2023, we received a Complete Response Letter from the FDA regarding our NDA for ADX‑2191 for the treatment of primary vitreoretinal lymphoma (the ADX‑2191 Complete Response Letter). The ADX‑2191 Complete Response Letter stated that there was a “lack of substantial evidence of effectiveness” due to “a lack of adequate and well-controlled investigations” in the literature-based NDA submission. In January 2024 we de-prioritized the previously announced programs of ADX‑629 in chronic cough and idiopathic nephrotic syndrome due to regulatory and trial feasibility challenges, respectively. Additionally, in the year ended December 31, 2024, we deprioritized and subsequently ceased development of ADX‑2191 for the treatment of proliferative vitreoretinopathy due to the requirement from the FDA to run clinical trials that we did not deem to be feasible. If marketing approval for our other product candidates is delayed, limited or denied, our ability to market the product candidate, and our ability to generate product sales, would be adversely affected. Such a delay could occur because a competitor product is approved before our product and secures patent protection, market exclusivity, or both, and thereby precludes our product approval for a number of years. It is also possible that additional studies or clinical trials may not suffice to make our application approvable. In addition, we cannot assure you that any such products that are approved will be manufactured or produced economically, adequately priced, successfully commercialized, or widely accepted in the marketplace, or will be more effective than other commercially available alternatives.

Previous wording

We could also face challenges in designing clinical trials and obtaining regulatory approval of our product candidates due to the lack of historical clinical trial experience for novel classes of therapeutics. Thus, it is difficult to determine whether regulatory agencies will be receptive to the approval of our product candidates, and to predict the time and costs associated with obtaining regulatory approvals. The clinical trial requirements of the FDA and other regulatory agencies and the criteria regulators use to determine the safety and efficacy of a product candidate vary substantially according to the type, complexity, novelty, and intended use and market of the potential products. The regulatory approval process for novel product candidates such as ours can be more expensive and require more time and trial data than for other, better known, or more extensively studied classes of product candidates. In addition, it is possible that, as regulatory bodies gain more familiarity with our type of product candidates by reviewing competitor candidates, those agencies could impose new conditions on our product candidates that we did not expect. Any inability to design clinical trials with protocols, methodology, and endpoints acceptable to applicable regulatory authorities, and to obtain regulatory approvals for our product candidates, would have an adverse impact on our business, prospects, financial condition, and results of operations.

Current wording

We could also face challenges in designing clinical trials and obtaining regulatory approval of our product candidates due to the lack of historical clinical trial experience for novel classes of therapeutics. Thus, it is difficult to determine whether regulatory agencies will be receptive to the approval of our product candidates, and to predict the time and costs associated with obtaining regulatory approvals. The clinical trial requirements of the FDA and other regulatory agencies and the criteria regulators use to determine the safety and efficacy of a product candidate vary substantially according to the type, complexity, novelty, and intended use and market of the potential products. The regulatory approval process for novel product candidates such as ours can be more expensive and require more time and trial data than for other, better known, or more extensively studied classes of product candidates.

Previous wording

There exist several designations that we can apply for from the FDA and other regulators that would provide us with various combinations of the potential for expedited regulatory review, certain financial incentives as well as the potential for post-approval exclusivity for a period of time. FDA designations include but are not limited to orphan drug designation, breakthrough therapy designation, accelerated approval, fast track status, and priority review for our product candidates. We may seek one or more of these designations for our current and future product candidates. For example, ADX‑2191 has received orphan designation for the treatment of retinitis pigmentosa. There can be no assurance that any of our other product candidates will qualify for any of these designations. There can also be no assurance that any of our product candidates that do qualify for FDA designations will be granted such designations or that the FDA will not revoke such a designation. Further, there can be no assurance that any of our product candidates that are granted such designations will ever benefit from such designations or that the FDA would not withdraw such designations once granted. Were we to receive a designation that promised a period of market exclusivity, such as orphan drug exclusivity, such exclusivity may not effectively protect the product from competition because different drugs can be approved for the same condition. Further, with respect to orphan drug status, even after an orphan drug is approved, the FDA can subsequently approve the same drug for the same condition if the FDA concludes that the later drug is clinically superior if it is shown to be safer, more effective, or makes a major contribution to patient care.

Current wording

There exist several designations that we can apply for from the FDA and other regulators, including the European Medicines Agency (EMA), that would provide us with various combinations of the potential for expedited regulatory review, certain financial incentives as well as the potential for post-approval exclusivity for a period of time. FDA designations include but are not limited to orphan drug designation, breakthrough therapy designation, accelerated approval, fast track status, and priority review for our product candidates. We may seek one or more of these designations for our current and future product candidates. For example, ADX‑2191 has received orphan designation from the FDA for the treatment of primary vitreoretinal lymphoma and retinitis pigmentosa, as well as orphan designation from the EMA for the treatment of inherited retinal dystrophies of the rod-dominant phenotype, including retinitis pigmentosa. There can be no assurance that any of our other product candidates will qualify for any of these designations. There can also be no assurance that any of our product candidates that do qualify for FDA or EMA designations will be granted such designations or that the FDA or EMA will not revoke such a designation. Further, there can be no assurance that any of our product candidates that are granted such designations will ever benefit from such designations or that the FDA or EMA would not withdraw such designations once granted. Were we to receive a designation that promised a period of market exclusivity, such as orphan drug exclusivity, such exclusivity may not effectively protect the product from competition because different drugs can be approved for the same condition. Further, with respect to orphan drug status, even after an orphan drug is approved, the FDA or EMA can subsequently approve the same drug for the same condition if the FDA or EMA concludes that the later drug is clinically superior if it is shown to be safer, more effective, or makes a major contribution to patient care.

Previous wording

We have incurred significant operating losses since we were founded in 2004 and expect to incur significant losses for the next several years as we continue our clinical trial, development programs, and commercial activities for reproxalap and our other product candidates. Net loss for the three months ended March 31, 2025 and 2024 was approximately $9.9 million and $8.1 million, respectively. As of March 31, 2025, we had total stockholders’ equity of $63.6 million and an accumulated deficit of $460.0 million. Losses have resulted principally from costs incurred in our clinical trials and research and development programs, and from general and administrative expenses. In the future, we intend to continue to conduct research and development, clinical testing, regulatory compliance activities, pre-commercial activities, and, if reproxalap or any of our other product candidates is approved and we do not enter into collaboration agreements with third parties, commercialization efforts, including sales and marketing activities, that, together with anticipated general and administrative expenses, will likely result in our incurring further significant losses for the next several years. Our net losses may fluctuate significantly from quarter to quarter and year to year.

Current wording

We have incurred significant operating losses since we were founded in 2004 and expect to incur significant losses for the next several years as we continue our clinical trial, development programs, and commercial activities for reproxalap and our other product candidates. Net loss for the six months ended June 30, 2025 and 2024 was approximately $19.7 million and $24.9 million, respectively. As of June 30, 2025, we had total stockholders’ equity of $55.3 million and an accumulated deficit of $469.8 million. Losses have resulted principally from costs incurred in our clinical trials and research and development programs, and from general and administrative expenses. In the future, we intend to continue to conduct research and development, clinical testing, regulatory compliance activities, pre-commercial activities, and, if reproxalap or any of our other product candidates is approved and we do not enter into collaboration agreements with third parties, commercialization efforts, including sales and marketing activities, that, together with anticipated general and administrative expenses, will likely result in our incurring further significant losses for the next several years. Our net losses may fluctuate significantly from quarter to quarter and year to year.

Previous wording

Our management has broad discretion in the application of our cash, cash equivalents, and marketable securities. Because of the number and variability of factors that will determine our use of our cash, cash equivalents, and marketable securities, the ultimate use of cash, cash equivalents, and marketable securities may vary substantially from the currently intended use. Our management might not apply our cash, cash equivalents, or marketable securities in ways that ultimately increase the value of your investment. We expect to use our cash, cash equivalents, and marketable securities to: fund our planned clinical trials of a number of product candidates; continue to fund the potential NDA resubmission and approval process for reproxalap, including conducting any additional clinical trials or other activities that the FDA may require for approval of reproxalap; develop other molecules that relate to immune-mediated disease; pursue regulatory approval for our product candidates; service our debt obligations; and provide working capital and capital for other general corporate purposes. The failure by our management to apply these funds effectively could harm our business. We may invest our cash, cash equivalents, or marketable securities in short-term investment-grade interest-bearing securities, which may not yield a favorable return to our stockholders. If we do not invest or apply our cash, cash equivalents, or marketable securities in ways that enhance stockholder value, we may fail to achieve expected financial results, which could cause our stock price to decline.

Current wording

Our management has broad discretion in the application of our cash, cash equivalents, and marketable securities. Because of the number and variability of factors that will determine our use of our cash, cash equivalents, and marketable securities, the ultimate use of cash, cash equivalents, and marketable securities may vary substantially from the currently intended use. Our management might not apply our cash, cash equivalents, or marketable securities in ways that ultimately increase the value of your investment. We expect to use our cash, cash equivalents, and marketable securities to: fund our planned clinical trials of a number of product candidates; continue to fund the NDA resubmission and approval process for reproxalap, including conducting any additional clinical trials or other activities that the FDA may require for approval of reproxalap; develop other molecules that relate to immune-mediated disease; pursue regulatory approval for our product candidates; service our debt obligations; and provide working capital and capital for other general corporate purposes. The failure by our management to apply these funds effectively could harm our business. We may invest our cash, cash equivalents, or marketable securities in short-term investment-grade interest-bearing securities, which may not yield a favorable return to our stockholders. If we do not invest or apply our cash, cash equivalents, or marketable securities in ways that enhance stockholder value, we may fail to achieve expected financial results, which could cause our stock price to decline.

Previous wording

As is common in the biotechnology and pharmaceutical industry, we engage the services of consultants to assist us in the development of our product candidates. Many of these consultants and our employees were previously employed at, or may have previously provided or may be currently providing consulting services to, other biotechnology or pharmaceutical companies including our competitors or potential competitors. We may become subject to claims that our company or an employee, consultant, or agent inadvertently or otherwise used or disclosed trade secrets or other information proprietary to their former employers or their former or current clients. Litigation may be necessary to defend against these claims. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to our management team.

Current wording

As is common in the biotechnology and pharmaceutical industry, we engage the services of consultants to assist us in the development of our product candidates. Many of these consultants and our employees were previously employed at, or may have previously provided or may be currently providing consulting services to, other biotechnology or pharmaceutical companies including our competitors or potential competitors. We may become subject to claims that our company or an employee, consultant, or agent inadvertently or otherwise used or disclosed trade secrets or other information proprietary to former employers or former or current clients. Litigation may be necessary to defend against such claims. Even if we are successful in the defense of claims related to use or disclosure of proprietary information, litigation could result in substantial costs and significantly distract our management team.

Previous wording

As of March 31, 2025, our executive officers, directors, and greater than 5% stockholders, in the aggregate, own approximately 39% of our outstanding common stock. As a result, such persons, acting together, may have the ability to control our management and business affairs and substantially all matters submitted to our stockholders for approval, including the election and removal of directors and approval of any significant transaction. Concentration of ownership may have the effect of delaying, deferring, or preventing a change in control, impeding a merger, consolidation, takeover, or other business combination involving us, or discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control of our business, even if such a transaction would benefit other stockholders.

Current wording

As of June 30, 2025, our executive officers, directors, and greater than 5% stockholders, in the aggregate, own approximately 32% of our outstanding common stock. As a result, such persons, acting together, may have the ability to control our management and business affairs and substantially all matters submitted to our stockholders for approval, including the election and removal of directors and approval of any significant transaction. Concentration of ownership may have the effect of delaying, deferring, or preventing a change in control, impeding a merger, consolidation, takeover, or other business combination involving us, or discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control of our business, even if such a transaction would benefit other stockholders.