Aldeyra Complete Response on Dry Eye NDA
FDA has sent Aldeyra Therapeutics a complete response letter on its NDA for reproxalap, an investigational drug candidate for treating dry eye disease. The letter said the submission 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, according to the company. It added that no safety or manufacturing concerns were identified in the letter.
Last month, Aldeyra said it was addressing “substantive” late review-cycle concerns raised by FDA on the NDA (see earlier story) and it predicted that a complete response letter was likely. The company now says it submitted 11/16 a special protocol assessment (SPA) request for a dry eye disease chamber crossover clinical trial that it hopes will satisfy the agency’s additional trial requirement. Aldeyra expects FDA feedback on the SPA next month, and if it gets an agency green light then top-line results are expected in the first half of 2024 which will be followed by an NDA resubmission.