Search ClinicalTrials.gov with natural language queries. Find clinical trials, enrollment, and outcomes using Valyu semantic search.
Search the complete ClinicalTrials.gov database of clinical studies using natural language queries powered by Valyu's semantic search API.
The scripts/search commands in this documentation are relative to this skill's installation directory.
Before running any command, locate the script using:
CLINICAL_TRIALS_SCRIPT=$(find ~/.claude/plugins/cache -name "search" -path "*/clinical-trials-search/*/scripts/*" -type f 2>/dev/null | head -1)
Then use the full path for all commands:
$CLINICAL_TRIALS_SCRIPT "CAR-T cell therapy trials" 15
When you run a search and receive "setup_required": true, follow this flow:
Ask the user for their API key: "To search ClinicalTrials.gov, I need your Valyu API key. Get one free ($10 credits) at https://platform.valyu.ai"
Once the user provides the key, run:
scripts/search setup <api-key>
Retry the original search.
{
"success": true,
"type": "clinical_trials_search",
"query": "CAR-T cell therapy trials",
"result_count": 10,
"results": [
{
"title": "Trial Title",
"url": "https://clinicaltrials.gov/...",
"content": "Trial details, phase, conditions, outcomes...",
"source": "clinical-trials",
"relevance_score": 0.95,
"images": []
}
],
"cost": 0.025
}
# Get trial titles
scripts/search "query" 10 | jq -r '.results[].title'
# Get URLs
scripts/search "query" 10 | jq -r '.results[].url'
# Extract full content
scripts/search "query" 10 | jq -r '.results[].content'
# Find drug trials
scripts/search "phase 2 trials for Alzheimer's disease" 50
# Search for treatment studies
scripts/search "checkpoint inhibitor combinations in lung cancer" 20
# Find device trials
scripts/search "continuous glucose monitoring device studies" 15
# Search for intervention studies
scripts/search "behavioral interventions for obesity" 25
All commands return JSON with success field:
{
"success": false,
"error": "Error message"
}
Exit codes:
0 - Success1 - Error (check JSON for details)https://api.valyu.ai/v1/searchscripts/
├── search # Bash wrapper
└── search.mjs # Node.js CLI
Direct API calls using Node.js built-in fetch(), zero external dependencies.
If you're building an AI project and want to integrate Clinical Trials Search directly into your application, use the Valyu SDK:
from valyu import Valyu
client = Valyu(api_key="your-api-key")
response = client.search(
query="your search query here",
included_sources=["valyu/valyu-clinical-trials"],
max_results=20
)
for result in response["results"]:
print(f"Title: {result['title']}")
print(f"URL: {result['url']}")
print(f"Content: {result['content'][:500]}...")
import { Valyu } from "valyu-js";
const client = new Valyu("your-api-key");
const response = await client.search({
query: "your search query here",
includedSources: ["valyu/valyu-clinical-trials"],
maxResults: 20
});
response.results.forEach((result) => {
console.log(`Title: ${result.title}`);
console.log(`URL: ${result.url}`);
console.log(`Content: ${result.content.substring(0, 500)}...`);
});
See the Valyu docs for full integration examples and SDK reference.