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The PDUFA API

A free, read-only JSON API for every biotech FDA catalyst we track — PDUFA decision dates, clinical-trial readouts, medical conferences, and FDA advisory committee meetings. No SDK, no auth to start.

Base URL

https://www.pdufa.bio/api/v1

Endpoints

GET/api/v1/pdufa

Upcoming and decided FDA PDUFA decisions.

GET/api/v1/readouts

Upcoming clinical-trial data readouts.

GET/api/v1/events

All catalyst types combined (PDUFA, readouts, conferences, AdComm).

Query parameters

Param	Description	Example
`ticker`	Filter by stock ticker	`?ticker=CELC`
`type`	PDUFA · Readout · Conference · AdComm	`?type=AdComm`
`ta`	Therapeutic area	`?ta=Oncology`
`from` / `to`	Date range (YYYY-MM-DD)	`?from=2026-08-01&to=2026-12-31`
`status`	Upcoming · Decided · Estimated · Scheduled	`?status=Upcoming`
`limit` / `offset`	Pagination (max 1000)	`?limit=100&offset=0`

Example

curl "https://www.pdufa.bio/api/v1/pdufa?from=2026-08-01&ta=Oncology&limit=5"

{
  "meta": { "source": "pdufa.bio", "total": 12, "returned": 5, "as_of": "2026-07-10" },
  "data": [
    {
      "ticker": "CELC", "date": "2026-07-17",
      "name": "Gedatolisib + Fulvestrant (VIKTORIA-1)",
      "type": "PDUFA", "therapeutic_area": "Oncology",
      "market_cap_tier": "Mid", "status": "Upcoming",
      "url": "https://www.pdufa.bio/pdufa/CELC"
    }
  ]
}

Authentication

The API is open while in preview. Higher-volume and commercial use will require an API key — pass it as an x-api-key request header. See Pro →

Rate limits & caching

Responses are edge-cached ~30 minutes. Please cache on your side and keep requests reasonable. CORS is open (Access-Control-Allow-Origin: *).

License & attribution

Free to use with attribution to pdufa.bio and a link back to the source page (included as url on every record). Data and historical statistics only — not investment advice, and no per-drug approval probabilities.