Pasithea completes enrollment, initial dosing from Phase 1/1b trial of PAS-004

Pasithea Therapeutics (KTTA) announced the Company has completed enrollment and initial dosing of three subjects in Cohort 1 from its ongoing Phase 1/1b multicenter, open-label clinical trial evaluating PAS-004 in adult NF1 patients with symptomatic and inoperable, incompletely resected, or recurrent plexiform neurofibromas. “Completion of enrollment and initial dosing of Cohort 1 marks a key milestone in our mission to develop PAS-004 as a potential best-in-class, next-generation MEK inhibitor for the treatment of NF1,” stated Dr. Tiago Reis Marques, Chief Executive Officer of Pasithea. “PAS-004 is a once-daily dosed MEK inhibitor in development for the treatment of NF1 patients with plexiform neurofibromas, as opposed to the current FDA-approved therapies that require twice-daily dosing. This may potentially offer a best-in-class advantage in terms of patient compliance. Based on the initial encouraging safety profile observed to date in our ongoing Phase 1 trial in advanced cancer patients, we are optimistic about the potential of PAS-004 to offer the NF1 population a better-tolerated MEK inhibitor and look forward to presenting initial NF1 proof-of-concept data in Q1 2026.”