Suplatast

DB19138InvestigationalSmall molecule

Suplatast is under investigation in clinical trial NCT05983471 (Efficacy and Safety of ME-015 (Suplatast Tosilate) in Cough Related to Idiopathic Pulmonary Fibrosis (COSMIC-IPF)).

Formula / weight: C₁₆H₂₆NO₄S · 328.45 g/mol (avg)
Also known as: Sulfonium, (3-((4-(3-ethoxy-2-hydroxypropoxy)phenyl)amino)-3-oxopropyl)dimethyl- · Suplatast cation · Suplatast ion

Resolves to

Compound

UNII4T0HO29O56CAS94055-75-1ChEMBLCHEMBL1180156ChEBI32172KEGGC12869

Structure

InChIKeyDYZJXZOQQRXDLE-UHFFFAOYSA-OSMILESCCOCC(O)COC1=CC=C(NC(=O)CC[S+](C)C)C=C1

What you can answer from here — as of August 30, 2026

1Clinical trialPhase, status and sponsor resolved per trial

Which companies are running trials of Suplatast, in which indications and phases, and which of those programs are still active?

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