ClinicalTrials.gov Scraper

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🎯 What this scrapes

ClinicalTrials.gov holds the registry every pharma, CRO and biotech competitive-intel team works from, and its API v2 returns deeply nested JSON that is painful to flatten by hand. This Actor wraps it with a plain input form and hands back one flat row per trial, so you can pull a therapeutic-area landscape into a spreadsheet without writing a parser.

🔥 What we handle for you

pages the registry's cursor-based API and stops exactly on your result cap flattens deeply nested protocol sections into one predictable row per trial retries transient registry 5xx responses instead of failing the whole run

💡 Use cases

• Map the competitive landscape for a therapeutic area before a portfolio review.
• Track which sponsors are recruiting for a condition, and where.
• Build a site-selection shortlist from countries already running comparable trials.
• Monitor status changes on a watchlist of trials without checking the registry by hand.

⚙️ How to use it

1. Click Try for free at the top of the page.
2. Fill in the input form — most fields have sensible defaults.
3. Click Start. Output streams into the run's dataset.
4. Export from Storage → Dataset as JSON, CSV, or Excel — or fetch via the API.

📥 Input

Field	Type	Required	Default	Notes
condition	string	no	'type 2 diabetes'	Condition, disease or therapeutic area to search for. Maps to the registry's query.cond field. Example:…
searchTerm	string	no	'—'	Free-text terms matched across the whole record (query.term) — sponsor names, drug names, keywords. Leave…
phases	array	no	[]	Restrict to these phases. Valid values: EARLY_PHASE1, PHASE1, PHASE2,…
overallStatus	array	no	[]	Restrict to these statuses, e.g. RECRUITING, COMPLETED, TERMINATED. Leave empty…
maxResults	integer	no	100	Stop after this many trials. Each trial is one billed result row.
proxyConfiguration	object	no	{'useApifyProxy': False}	ClinicalTrials.gov is a public government API and does not need a proxy. Leave this off unless your account requires…

Example input

{
  "condition": "type 2 diabetes",
  "maxResults": 3,
  "proxyConfiguration": {
    "useApifyProxy": false
  }
}

📤 Output

Every row is one dataset item.

Field	Type	Notes
nct_id	string	Registry identifier, e.g. NCT01234567.
url	string	Public study page URL.
brief_title	string	Short study title.
official_title	string	Full official title, when present.
overall_status	string	Recruitment status, e.g. RECRUITING.
phases	array	Trial phases as reported by the registry.
study_type	string	INTERVENTIONAL, OBSERVATIONAL, or EXPANDED_ACCESS.
lead_sponsor	string	Lead sponsor organisation name.
conditions	array	Conditions studied.
interventions	array	Intervention names.
enrollment_count	integer	Enrollment, actual or estimated.
start_date	string	Study start date as published (YYYY-MM or YYYY-MM-DD).
primary_completion_date	string	Primary completion date as published.
location_countries	array	Distinct countries with a listed site.
brief_summary	string	Plain-language study summary.

Example output

{}

💰 Pricing

Pay-Per-Event — you pay only when these events fire:

Event	USD	What it is
actor-start	$0.05	One-off warm-up charge per run
result	$0.002	Per dataset item

Example: 1 000 results at the rates above ≈ $2.05. No subscription, no minimum, no card to start — Apify gives every new account $5 of free credit.

🚧 Limitations

• Returns registry data only — it does not scrape linked publications or results tables.
• Date fields are passed through exactly as the registry publishes them, which may be a month (2026-03) rather than a full date.

❓ FAQ

Do I need an API key?

No. ClinicalTrials.gov API v2 is public and keyless, so a run needs no credentials from you.

How fresh is the data?

It comes straight from the live registry at run time — whatever the registry shows, the run returns.

Can I get every trial for a condition?

Yes. Raise Maximum trials; the Actor pages through results until the registry runs out or your limit is reached.

💬 Your feedback

Spotted a bug, hit a weird edge case, or need a new field? Open an issue on the Actor's Issues tab on Apify Console — we ship fixes weekly and we read every report.

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