# Clinical Trial Updates Feed

> Clinical Trial Updates Feed is a paid API for AI agents from clinical-trials.use.x402atlas.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).

Returns ClinicalTrials.gov studies for a condition posted or updated within the last N days, newest first, with status, phases, interventions, sponsor, dates, and enrollment.

## Facts

- Endpoint: GET https://clinical-trials.use.x402atlas.com/recent?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/clinical-trial-updates-feed-8672b215
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_k7_tC8IFmKA7iP_qhq0CV

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability clinical-trial-updates-feed-8672b215
```

Example prompt: Show me all ClinicalTrials.gov studies for type 2 diabetes that were posted or updated in the last 14 days, up to 20 results, and filter by sponsor Novo Nordisk.

## When to prefer this

Choose this endpoint when you need to monitor a disease area, drug, or sponsor for recently posted or changed trials over a rolling time window rather than performing an ad-hoc keyword search. It is ideal for recurring monitoring workflows, alerting pipelines, and competitive intelligence where recency and change detection matter. Prefer the sibling search endpoint when you need broad free-text discovery without a time constraint.

## Known failure modes

- Missing required 'condition' parameter returns an error
- Invalid or expired page_token causes pagination failure
- Days value out of range (1–365) returns a validation error
- Sponsor or intervention filter with no matches returns empty studies array with total=0
- ClinicalTrials.gov upstream unavailability may cause timeouts or stale data

## How this service works

Clinical trial updates feed — ClinicalTrials.gov studies for a condition that were posted or updated in the last N days, newest first, with status, phases, interventions, sponsor, dates and enrollment. Use to monitor a disease area, a drug or a sponsor for new trials, status changes and posted results.

## Output

A JSON object containing the applied filters (condition, sponsor, intervention, days window), retrieval timestamp, total matching study count, a page of study records (each with NCT ID, title, status, phases, interventions, sponsor, enrollment, start/completion dates), a next_page_token for pagination, source attribution to ClinicalTrials.gov, and an interpretation caveat. Returns a note field when the window is empty.

## Request schema (JSON Schema)

```json
{
 "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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "condition"
     ],
     "properties": {
      "days": {
       "type": "integer",
       "default": 7,
       "maximum": 365,
       "minimum": 1,
       "description": "Window ending today, UTC"
      },
      "limit": {
       "type": "integer",
       "default": 10,
       "maximum": 50,
       "minimum": 1
      },
      "sponsor": {
       "type": "string",
       "maxLength": 200,
       "description": "Lead sponsor name filter"
      },
      "condition": {
       "type": "string",
       "maxLength": 200,
       "description": "Condition or disease; omitted runs the example"
      },
      "page_token": {
       "type": "string",
       "maxLength": 512,
       "description": "next_page_token of the previous page"
      },
      "intervention": {
       "type": "string",
       "maxLength": 200,
       "description": "Intervention or treatment filter"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "as_of",
      "source",
      "caveat",
      "modified",
      "condition",
      "intervention",
      "sponsor",
      "days",
      "since",
      "count",
      "total",
      "studies",
      "next_page_token"
     ],
     "properties": {
      "days": {
       "type": "integer"
      },
      "note": {
       "type": "string",
       "description": "Present only on an empty window"
      },
      "as_of": {
       "type": "string",
       "format": "date-time",
       "description": "Retrieval time, UTC"
      },
      "count": {
       "type": "integer",
       "description": "Studies on this page"
      },
      "since": {
       "type": "string",
       "description": "UTC start of the window"
      },
      "total": {
       "type": "integer",
       "description": "Studies matching across all pages"
      },
      "caveat": {
       "type": "string",
       "desc
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clinical-trial-updates-feed-8672b215/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clinical-trials.use.x402atlas.com](https://www.zero.xyz/host/clinical-trials.use.x402atlas.com/llms.txt)