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# genesis/trials.py
import requests
from typing import List, Dict
CLINICAL_TRIALS_API = "https://clinicaltrials.gov/api/query/study_fields"
def search_clinical_trials(query: str, max_results: int = 5) -> List[Dict]:
"""
Search ClinicalTrials.gov for trials matching the query.
Returns a list of dictionaries with:
- title
- status
- nct_id
- locations
- url
"""
try:
params = {
"expr": query,
"fields": "NCTId,BriefTitle,OverallStatus,LocationCity,LocationCountry",
"min_rnk": 1,
"max_rnk": max_results,
"fmt": "json"
}
r = requests.get(CLINICAL_TRIALS_API, params=params, timeout=15)
r.raise_for_status()
data = r.json()
studies = data.get("StudyFieldsResponse", {}).get("StudyFields", [])
results = []
for s in studies:
nct_id = s.get("NCTId", [""])[0]
title = s.get("BriefTitle", [""])[0]
status = s.get("OverallStatus", [""])[0]
cities = s.get("LocationCity", [])
countries = s.get("LocationCountry", [])
locations = [f"{c}, {countries[i]}" if i < len(countries) else c
for i, c in enumerate(cities)]
results.append({
"title": title,
"status": status,
"nct_id": nct_id,
"locations": locations,
"url": f"https://clinicaltrials.gov/study/{nct_id}"
})
return results
except Exception as e:
print(f"[ClinicalTrials] Failed: {e}")
return []
def format_trials_markdown(trials: List[Dict]) -> str:
"""Convert trials list into markdown table."""
if not trials:
return "No clinical trials found."
md = "| Title | Status | NCT ID | Locations |\n|-------|--------|--------|-----------|\n"
for t in trials:
loc_str = ", ".join(t["locations"]) if t["locations"] else "N/A"
md += f"| [{t['title']}]({t['url']}) | {t['status']} | [{t['nct_id']}]({t['url']}) | {loc_str} |\n"
return md
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