Source: https://github.com/aipoch/medical-research-skills

ClinicalTrials.gov Database

When NOT to Use

• Do not use for searching non-US trial registries (e.g., EU CTR, ISRCTN, ChiCTR) — the API only covers ClinicalTrials.gov.
• Do not use for downloading full study protocols or CSR documents (the API provides structured metadata only).
• Do not use for real-time patient matching in clinical settings without verification of current recruitment status.
• Do not use when offline access is required (the API requires internet connectivity).

Overview

ClinicalTrials.gov is a comprehensive registry of clinical studies conducted worldwide, maintained by the U.S. National Library of Medicine. Access API v2 to search for trials, retrieve detailed study information, filter by various criteria, and export data for analysis. The API is public (no authentication required) with rate limits of ~50 requests per minute, supporting JSON and CSV formats.

When to Use This Skill

This skill should be used when working with clinical trial data in scenarios such as: