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Aldeyra Therapeutics, Inc. (ALDX) Faces Scrutiny After Stock Drops 70% On FDA’s Reproxalap Complete Response Letter – Hagens Berman

Key Takeaway: Aldeyra Therapeutics, Inc. experienced a significant stock drop of over 70% after receiving a Complete Response Letter from the FDA regarding its drug reproxalap for dry eye disease. The FDA's letter indicated that the drug failed to show efficacy and noted the need for additional studies due to concerns with the trial's methodology. Following the announcement, investor rights law firm Hagens Berman launched an investigation into potential misrepresentation by Aldeyra regarding the drug's approval prospects. As a result, over $200 million was erased from the company’s market capitalization.

Market Sentiment Analysis

CONCERNS & RISKS

  • Aldeyra's stock plummeted over 70% following the FDA's rejection of reproxalap.
  • The FDA's Complete Response Letter cited the drug's failure to demonstrate efficacy in well-controlled studies.
  • Concerns were raised about methodological issues related to the trial data submitted with the NDA.

Full Press Release Details

SAN FRANCISCO, May 01, 2025 (GLOBE NEWSWIRE) -- On April 3, 2025 investors in Aldeyra Therapeutics, Inc. (NASDAQ: ALDX) saw the price of their shares crash over 70% after the company announced that it received a Complete Response Letter (“CRL”) from the FDA for the resubmission of the New Drug Application (“NDA”) of reproxalap, an investigational drug candidate, for the treatment of dry eye disease.
This stark regulatory rejection, which contradicted Aldeyra’s repeated assurances of imminent approval, erased over $200 million from the company’s market capitalization, prompting investor rights law firm Hagens Berman to launch an investigation into potential securities law violations.
Hagens Berman urges investors who purchased Aldeyra shares and suffered substantial losses to submit your losses now. The firm also encourages persons with knowledge that may assist the firm’s investigation to contact its attorneys.
Contact the Firm Now: ALDX@hbsslaw.com
Aldeyra Therapeutics, Inc. (ALDX) Investigation:
The investigation is focused on the propriety of Aldeyra’s statements about the prospects for FDA approval of the NDA of reproxalap.
In the past, Aldeyra touted the success of its Phase 3 dry eye clinical chamber trial for the drug and said the “results are uniquely supportive of the potential acute clinical effect of reproxalap on reducing ocular discomfort[.]” More recently, the company assured investors that “reproxalap is going to get approved on April 2[.]”
Instead, on April 3, 2025, Aldeyra announced that it received the FDA’s CRL. Aldeyra revealed that:
“the FDA stated in the letter that the NDA ‘failed to demonstrate efficacy in adequate and well controlled studies in treating ocular symptoms associated with dry eyes[;]’”
“‘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[;]” and
“[t]he 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.”
In response to this news, the market swiftly reacted by sending the price of Aldeyra shares down over 70%, wiping out over $200 million of shareholder value.
Reed Kathrein, the Hagens Berman Partner leading the investigation, stated, “We are investigating whether Aldeyra may have misrepresented the propriety of its reproxalap study and results to investors.”
If you invested in Aldeyra and have substantial losses, or have knowledge that may assist the firm’s investigation, submit your losses now »
If you’d like more information and answers to frequently asked questions about the Aldeyra investigation, read more »
Whistleblowers: Persons with non-public information regarding Aldeyra should consider their options to help in the investigation or take advantage of the SEC Whistleblower program. Under the new program, whistleblowers who provide original information may receive rewards totaling up to 30 percent of any successful recovery made by the SEC. For more information, call Reed Kathrein at 844-916-0895 or email ALDX@hbsslaw.com.
Hagens Berman is a global plaintiffs’ rights complex litigation firm focusing on corporate accountability. The firm is home to a robust practice and represents investors as well as whistleblowers, workers, consumers and others in cases achieving real results for those harmed by corporate negligence and other wrongdoings. Hagens Berman’s team has secured more than $2.9 billion in this area of law. More about the firm and its successes can be found at hbsslaw.com. Follow the firm for updates and news at @ClassActionLaw.
Reed Kathrein, 844-916-0895

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Frequently Asked Questions

What caused the crash in Aldeyra's stock price?

Aldeyra's stock price plummeted over 70% after receiving a Complete Response Letter from the FDA.

What is reproxalap intended to treat?

Reproxalap is an investigational drug candidate intended for treating dry eye disease.

What did the FDA state in the Complete Response Letter?

The FDA indicated the NDA failed to show efficacy and required more controlled studies.

What firm is investigating Aldeyra for potential violations?

Hagens Berman is investigating Aldeyra for possible securities law violations.

How can investors with losses contact Hagens Berman?

Investors can contact Hagens Berman by emailing ALDX@hbsslaw.com.

Last updated: May 1, 2025