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PureTech Founded Entity Seaport Therapeutics Reports Positive Multiple-Ascending Dose Data from Phase 1 Proof-of-Concept Trial of GlyphAgo™ in Healthy Volunteers

$SPTXPress releaseJun 9, 2026, 2:00 AM ETRead the release

Seaport Therapeutics reported positive Phase 1 multiple-ascending dose (MAD) data for GlyphAgo, its novel oral prodrug of agomelatine. The trial involved 174 healthy volunteers and showed that seven-day dosing achieved therapeutic exposures with no liver-related adverse events, addressing a key limitation of unmodified agomelatine.

Key figures

Drug Name
GlyphAgo (SPT-320)
Phase Of Trial
Phase 1
Participants
174
Bioavailability increase
6.8-fold
Pk variability reduction
10-fold

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