When to Use

Use this tool when you need to search clinical trials using multiple criteria.

this tool allows you to perform a combined search using multiple criteria such as conditions, interventions, sponsors, and general terms.

input:

• conditions: a list of medical conditions to search for.
• interventions: a list of interventions or treatments to search for.
• sponsors: a list of sponsor organizations to search for.
• terms: a list of general search terms.
• nct_ids: a list of specific nct ids to include in the search.
• max_studies: the maximum number of studies to return. defaults to 50.
• fields: a list of specific fields to return in the results. if not provided, returns search_tool_defaults (9 essential fields: nctid, brieftitle, acronym, condition, phase, interventionname, leadsponsorname, overallstatus, hasresults).. This is part of the Clinical Trials provider on xpay✦.

MCP Connection

Connect to xpay✦ to access this tool (and 11+ others):

{
  "mcpServers": {
    "xpay": {
      "url": "https://mcp.xpay.sh/mcp?key=YOUR_API_KEY"
    }
  }
}

For Claude Code:

claude mcp add --transport http xpay "https://mcp.xpay.sh/mcp?key=YOUR_API_KEY"

How to Execute

Use the xpay✦ meta-tools to run this tool:

1. xpay_details — Get full input schema: xpay_details("clinical-trials/search_trials_combined")
2. xpay_run — Execute: xpay_run("clinical-trials/search_trials_combined", { ...inputs })

Input Parameters

Pricing

• Cost: $0.01/call
• Balance check: Use xpay_balance to check remaining credits
• Get your API key at xpay.tools — $5 free credits included

Related Skills

• Clinical Trials (all tools) — 12 tools
• Search Trials By Condition — $0.01/call
• Search Trials By Intervention — $0.01/call
• Search Trials By Sponsor — $0.01/call
• Search Trials By Acronym — $0.01/call
• Search Trials By Nct Ids — $0.01/call

Links

• Tool page: https://xpay.tools/clinical-trials/search-trials-combined/
• Provider: https://xpay.tools/clinical-trials/
• All tools: https://xpay.tools/explore