Protagonist Therapeutics, Inc.
Nasdaq PTGX · Newark, CA
Works in Genetic & rare · GI & liver · Hematology · Metabolic & endocrine · Oncology
Protagonist Therapeutics, Inc. is a clinical trial sponsor based in Newark, CA, listed as Nasdaq PTGX. It has 2 active clinical trials with 339 planned participants, across 5 therapeutic areas. Since 2021 it has completed 10 trials and stopped 1 early. Its FDA record on file shows 1 inspection.
Trial track record · since 2021
FDA record
Recent FDA actions
Financials · Nasdaq PTGX
Pipeline · 2 active trials
| Stage | Trial | Status |
|---|---|---|
Questions about Protagonist Therapeutics, Inc
No warning letter naming Protagonist Therapeutics, Inc is on file. FDA has published 1 inspection classification naming it.
FDA has posted 1 inspection classification naming Protagonist Therapeutics, Inc. The latest inspection ended on 2026-04-03 and was classified VAI (voluntary action indicated). FDA posts a classification after its review, often months after the inspection ended.
Protagonist Therapeutics, Inc is lead sponsor of 2 active clinical trials on ClinicalTrials.gov, with 339 planned participants, in Genetic & rare, GI & liver, Hematology, Metabolic & endocrine and other areas. Since 2021 it has completed 10 trials and stopped 1 early.
Protagonist Therapeutics, Inc is based in Newark, CA and is listed as Nasdaq PTGX. The address is the one on its SEC filings, which name the establishment or the registrant, not always the group's head office.
From public sources only: ClinicalTrials.gov for trials, FDA's Data Dashboard, warning-letter listing and enforcement reports for the FDA record, and SEC filings for financials. Approve Suite is not affiliated with Protagonist Therapeutics, Inc; every record links to the source, and nothing here is advice.
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Trial counts are as the sponsor reported them to ClinicalTrials.gov, for trials changed since 2021; latest update 2026-08-05.
The FDA record counts inspection classifications, warning letters and recalls FDA has published that name this company. Compare it with the industry in the free CDMO FDA inspection lookup.
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