{"uid":"cap_gtYhzrprJyLDh4bUJxck4","slug":"clinicaltrials-gov-trial-search-c214e43d","name":"ClinicalTrials.gov Trial Search","description":"Search ClinicalTrials.gov by indication, company, molecule or free text and get a ranked list of normalized trial records with total count and on-page facet summary. Optional phase, status, study-type and country filters. A cheap first step before /trials/study or /trials/pipeline.","url":"https://payai.agentstools.dev/trials/search","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"cond":{"type":"string","description":"Condition, indication or disease"},"intr":{"type":"string","description":"Intervention, drug or molecule name"},"lead":{"type":"string","description":"Lead sponsor name"},"term":{"type":"string","description":"Free-text other terms"},"phase":{"enum":["0","1","2","3","4"],"type":"string","description":"Trial phase to filter by, where 0 is Early Phase 1"},"spons":{"type":"string","description":"Sponsor or collaborator name"},"status":{"enum":["recruiting","not_yet_recruiting","active_not_recruiting","completed","terminated","withdrawn","suspended"],"type":"string","description":"Overall recruitment status to filter by"},"titles":{"type":"string","description":"Title or acronym terms"},"country":{"type":"string","description":"Country to narrow trial sites"},"page_size":{"type":"integer","maximum":50,"minimum":1,"description":"Max records to return, default 10"},"study_type":{"enum":["int","obs","exp"],"type":"string","description":"Study type: int interventional, obs observational, exp expanded access"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ST-QftpwE1q8JJUoX-e9M","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search ClinicalTrials.gov by indication, molecule, sponsor, or free text and return a ranked, normalized list of matching clinical trial records with facet summary and total count.","exampleAgentPrompt":"Can you search ClinicalTrials.gov for recruiting Phase 3 interventional trials studying pembrolizumab for non-small cell lung cancer in the United States, and show me the top 10 results?","exampleUseCases":[{"title":"Competitor pipeline intelligence","prompt":"Search for all Phase 2 and Phase 3 trials where Pfizer is the lead sponsor testing any oncology drug — give me up to 20 results so I can map out their pipeline."},{"title":"Patient recruitment opportunity scan","prompt":"Find recruiting interventional trials for Crohn's disease in Germany right now — I need the first 15 results to identify sites we might partner with for patient recruitment."},{"title":"Molecule competitive landscape check","prompt":"Look up clinical trials on ClinicalTrials.gov for semaglutide across all phases and statuses, return up to 25 results so I can see the full competitive landscape before our strategy meeting."}],"resultDescription":"A ranked list of normalized clinical trial records (up to page_size, default 10), each containing core metadata such as NCT identifier, official title, overall status, phase, sponsor, conditions, interventions, and locations. Also includes a total matching-record count and an on-page facet summary (e.g. phase distribution, status breakdown) to help the agent decide whether to refine the query or drill into individual study records.","failureModes":["No results returned if query terms are too specific or misspelled — agent should broaden or correct input","Missing required 'input' wrapper causes 400 validation error","Phase enum must be '0','1','2','3', or '4' — numeric strings only, not 'Phase 2'","Status enum uses snake_case values (e.g. 'not_yet_recruiting') — freeform text will be rejected","page_size must be between 1 and 50 — values outside range cause validation failure","Country must match ClinicalTrials.gov accepted country names; ambiguous abbreviations may return zero results","Service may return stale data if ClinicalTrials.gov upstream is delayed"],"whenToPreferThis":"Use this endpoint as the first step in any clinical-trial research workflow when you need to discover and shortlist relevant trials from ClinicalTrials.gov. It is the right choice when you have a condition, molecule, or sponsor name and want a broad ranked list before investing in detailed per-study lookups (e.g. /trials/study) or pipeline analyses (e.g. /trials/pipeline). Prefer this over manual ClinicalTrials.gov browsing when you need structured, normalized, filterable output programmatically. It is a low-cost ($0.015) way to validate whether a topic has any trial coverage before running more expensive downstream queries.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:55:58.427Z","isFirstParty":false}