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FSD-201

Small molecule · Inhibitor · developed by Quantum Biopharma

Phase 2 Most advanced trial (none active)
QNTM Developer
1 Registered trials

What is FSD-201?

FSD-201 is an orally bioavailable, ultra-micronized formulation of palmitoyl ethylamine (PEA), a fatty acid amide. It inhibits mast cell activation and migration, and reduces the release of pro-inflammatory mediators from activated mast cells. It is studied in mast cell activation syndrome and idiopathic mast cell activation disorder.

Summary written with AI from the sources listed at the end of this page.

At a glance

Drug type
Small molecule
Mechanism
Inhibitor
Pathways
mast cell activation, pro-inflammatory mediator release
Therapy area
Immunology
Developer
Quantum Biopharma (QNTM, QUCY)
FDA status
Investigational, not approved in the US. Most advanced trial: Phase 2

🧪 Clinical trials

TrialPhaseConditionStatusSponsor
NCT05652907 Phase 2 Mast Cell Activation Syndrome Terminated QNTM

Trials of the companies BioRadar tracks, from ClinicalTrials.gov, most advanced phase first.

Conditions studied

Mast Cell Activation Disorder IdiopathicMast Cell Activation Syndrome

More from Quantum Biopharma

Sources

Updated Oct 3, 2026. Something wrong or missing? Report it on the QNTM page.

Follow QNTM, the company behind FSD-201

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Data: FDA (Drugs@FDA, Purple Book, DailyMed), NIH (NCI Thesaurus, GSRS, RxNorm), ClinicalTrials.gov • Informational purposes only, not medical or investment advice. • All drugs A–Z

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