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ClinicalTrials.gov Scraper

Try for free

Scrape the US government clinical-trial registry (500K+ studies). Search by condition, intervention, location, sponsor, or NCT ID; filter by status, phase, study type, demographics, country, and dates. Public REST API, no auth, no proxy.

Pricing

from $3.00 / 1,000 results

Rating

5.0

(7)

Developer

Crawler Bros

Actor stats

Bookmarked

Total users

Monthly active users

3 days ago

Last modified

Categories

Developer tools

Automation

Other

Mode

mode

Required

Which lookup axis to use.

Type:string

Default:search

Options:

searchbyNctIdsbyConditionbyInterventionbyLocationbySponsor

Search query (mode=search)

searchQuery

Optional

Free-text query against the full study record. Used by mode=search; also serves as a fallback for the other browse modes if their specific query is empty.

Type:string

Default:cancer immunotherapy

Condition / disease (mode=byCondition)

conditionQuery

Optional

Disease, condition, or medical term (e.g. diabetes, breast cancer, Alzheimer disease).

Type:string

Intervention / drug (mode=byIntervention)

interventionQuery

Optional

Drug name, device, biological, or therapy (e.g. metformin, pembrolizumab, CAR-T).

Type:string

Location (mode=byLocation)

locationQuery

Optional

Geographic location text (city, state, country) — e.g. Boston, California, United States.

Type:string

Lead sponsor (mode=bySponsor)

sponsorQuery

Optional

Lead sponsor / organization name (e.g. Pfizer, Mayo Clinic, NIH). Use the exact registered lead-sponsor name as it appears on ClinicalTrials.gov — for example, ModernaTX (not Moderna), Pfizer Inc. (not Pfizer). Partial names may return 0 results — use the CT.gov website search to identify the exact registered name first.

Type:string

NCT IDs (mode=byNctIds)

nctIds

Optional

List of NCT identifiers like NCT04280705. Full URLs (https://clinicaltrials.gov/study/NCT...) are also accepted.

Type:array

Default:

[]

Overall status

status

Optional

Restrict to a single recruitment / overall status. Leave empty for no filter.

Type:string

Options:

NOT_YET_RECRUITINGRECRUITINGENROLLING_BY_INVITATIONACTIVE_NOT_RECRUITINGSUSPENDEDTERMINATEDCOMPLETEDWITHDRAWNUNKNOWNAVAILABLENO_LONGER_AVAILABLETEMPORARILY_NOT_AVAILABLEAPPROVED_FOR_MARKETINGWITHHELD

Study type

studyType

Optional

Restrict to a study type. Leave empty for no filter.

Type:string

Options:

INTERVENTIONALOBSERVATIONALEXPANDED_ACCESS

Phases

phases

Optional

Restrict to one or more trial phases. Empty array = no filter.

Type:string[]

Default:

[]

Eligible sex

sex

Optional

Restrict to studies enrolling a specific sex. ALL matches studies open to any sex.

Type:string

Options:

ALLMALEFEMALE

Age groups

ageGroups

Optional

Restrict to studies enrolling one or more age groups. Empty = no filter.

Type:string[]

Default:

[]

Country

country

Optional

Restrict to studies with a trial location in a specific country (matches protocolSection.contactsLocationsModule.locations[].country).

Type:string

Options:

United StatesCanadaUnited KingdomGermanyFranceItalySpainNetherlandsBelgiumSwedenNorwayDenmarkFinlandSwitzerlandAustriaPolandCzechiaHungaryRomaniaBulgariaGreecePortugalIrelandIcelandRussiaUkraineTurkeyIsraelSaudi ArabiaUnited Arab EmiratesEgyptSouth AfricaChinaJapanKorea, Republic ofTaiwanHong KongIndiaPakistanBangladeshThailandVietnamIndonesiaMalaysiaSingaporePhilippinesAustraliaNew ZealandMexicoBrazilArgentinaChileColombiaPeru

Start date — from (YYYY or YYYY-MM-DD)

startDateFrom

Optional

Drop studies that started before this date. ISO 8601 partial dates accepted (e.g. 2020, 2020-01, 2020-01-15).

Type:string

Start date — to (YYYY or YYYY-MM-DD)

startDateTo

Optional

Drop studies that started after this date.

Type:string

Completion date — from (YYYY or YYYY-MM-DD)

completionDateFrom

Optional

Drop studies whose completion date is before this date.

Type:string

Completion date — to (YYYY or YYYY-MM-DD)

completionDateTo

Optional

Drop studies whose completion date is after this date.

Type:string

Only studies with posted results

hasResults

Optional

When enabled, only emit studies that have results posted on ClinicalTrials.gov. When disabled (default), all studies are returned regardless of results status.

Type:boolean

Default:false

Contains keyword

containsKeyword

Optional

Client-side filter: keep only records whose title, summary, eligibility, conditions, keywords, or interventions contain this substring (case-insensitive).

Type:string

Max items

maxItems

Optional

Hard cap on emitted records.

Type:integer

Minimum:1

Maximum:5000

Default:50

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