Selective oral NMDA receptor modulator demonstrated favorable safety, tolerability, and pharmacokinetic profile supporting planned Phase 2a development in chemotherapy-induced peripheral neuropathy

MIAMI, FL / ACCESS Newswire / May 14, 2026 / MIRA Pharmaceuticals, Inc. (NASDAQ:MIRA) ("MIRA" or the "Company"), today announced positive unblinded results from its completed Phase 1 clinical trial evaluating Ketamir-2, the Company's proprietary selective oral NMDA receptor modulator.

The randomized, double-blind, placebo-controlled Phase 1 study evaluated the safety, tolerability, and pharmacokinetics of orally administered Ketamir-2 in healthy volunteers across single ascending dose (SAD) and multiple ascending dose (MAD) cohorts.

A total of 57 healthy volunteers were enrolled across seven cohorts, including placebo. All participants completed the study with no withdrawals, and all subjects were fit for discharge following final administration.

No serious adverse events or dose-limiting toxicities were reported during the study. Adverse events observed were predominantly mild in severity. The incidence of subjects reporting adverse events was higher in the placebo group than in the Ketamir-2-treated group.

Pharmacokinetic analysis demonstrated rapid oral absorption and favorable systemic exposure, with dose-proportional Cmax observed across the evaluated dose range. No major differences were observed in pharmacokinetic parameters for Ketamir-2 or its active metabolite, nor-Ketamir-2, between Day 1 and Day 5 of administration, supporting pharmacokinetic consistency across repeated dosing.

The half-life (t1/2) of Ketamir-2 ranged from approximately 2.5 to 7 hours, while the active metabolite nor-Ketamir-2 demonstrated a half-life of approximately 7 to 9 hours, supporting sustained pharmacologic exposure. Based on the observed pharmacokinetic profile of the parent compound and active metabolite, Ketamir-2 may support once-daily administration, subject to further clinical evaluation.