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Alto Neuroscience Initiates Phase 2b Trial of ALTO-207 in Treatment-Resistant Depression

$ANROPress releaseApr 21, 2026, 8:03 AM ETRead the release

Alto Neuroscience initiated a Phase 2b trial of ALTO-207 for treatment-resistant depression (TRD), aiming to replicate strong efficacy signals from the PAX-D study and prior Phase 2a data. The trial will enroll approximately 178 adults and uses a MADRS primary endpoint aligned with FDA standards, potentially supporting a single Phase 3 registrational pathway.

Key figures

Drug Name
ALTO-207
Phase Of Trial
Phase 2b

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