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FDA Rejects Aldeyra’s Dry-Eye Drug Again After Finding Evidence Lacking

Regulators cited inadequate efficacy evidence.

Overview

  • The new Complete Response Letter is the third rejection of reproxalap since 2023.
  • The FDA raised no safety or manufacturing concerns in the letter.
  • The agency did not request new trials, instead urging analysis of failed studies and potential responder subgroups.
  • Aldeyra plans to request a Type A meeting to discuss potential steps toward approval.
  • Shares fell about 69% to near a 52-week low, while the company reported roughly $70 million in cash expected to fund operations into 2028.