Pasithea Therapeutics Announces Positive Initial Safety, Tolerability, Pharmacokinetic (PK), and Preliminary Efficacy Data from its Phase 1 Clinical Trial of PAS-004 in Advanced Cancer Pasithea Therapeutics' PAS-004 shows positive Phase 1 data: well-tolerated, no toxicities, promising efficacy in NF1 and MAPK-driven cancers.