Clinical Trials Registers, Databases and Portals

This page lists national and international registers, and portals, and provides information on the basics of searching each site.

• • AdisInsight (basic information is free; full information available with subscription or pay-per-item)

  • Australian New Zealand Clinical Trials Registry (also searchable under the ICTRP search portal)

  • Be Part of Research (UK Clinical Trials)

  • Brazilian Clinical Trials Registry / Registro Brasileiro de Ensaios Clinicos (ReBEC) (also searchable under the ICTRP search portal)

  • Centerwatch

  • Chinese Clinical Trial Registry (ChiCTR) (also searchable under the ICTRP search portal)

  • Clinical Trials Database (Canada)

  • Clinical Trials Information Service (CTIS)

  • ClinicalStudyDataRequest.com

  • ClinicalTrials.gov (also searchable under the ICTRP search portal)

  • Cuban Public Registry of Clinical Trials / Registro Público Cubano de Ensayos Clínicos (RPCEC) (also searchable under the ICTRP search portal)

  • Dutch Trial Register (also searchable under the ICTRP search portal)

  • European Union trials registers including the Clinical Trials Information Service (CTIS) and EU-CTR. EU-CTR is also searchable under the ICTRP search portal)

  • EU-CTR EU-CTR is also searchable under the ICTRP search portal)

  • German Clinical Trials Register (DRKS) (also searchable under the ICTRP search portal)

  • HERDIN (The Philippine Health Research Registry)

  • Hong Kong University Clinical Trial Register

  • India: Clinical Trials Registry India (also searchable under the ICTRP search portal)

  • International Clinical Trials Registry Platform (ICTRP) (World Health Organization)

  • International Traditional Medicine Clinical Trial Registry (ITMCTR) (also searchable under the ICTRP search portal)

  • Iranian Registry of Clinical Trials (IRCT) (also searchable under the ICTRP search portal)

  • ISRCTN (also searchable under the ICTRP search portal)

  • Japan: University Hospital Medical Information Network Clinical Trials Registry (for Japan) (UMIN)

  • Japan Primary Registries Network  (also searchable under the ICTRP search portal)

  • Korea (Republic of) Clinical Research Information Service (CRiS) (also searchable under the ICTRP search portal)

  • Medline Databank Sources (provides access to a number of clinical trial registers)

  • Pan African Clinical Trials Registry (PACTR)(also searchable under the ICTRP search portal)

  • Peruvian Clinical Trials Registry (searchable under the ICTRP search portal)

  • PharmNet Bund (Clinical trials) (also searchable under EU Clinical Trials Register)

  • Research Registry

  • Russia State Registry of Medicines

  • ScanMedicine

  • South African National Clinical Trials Register

  • Sri Lanka Clinical Trials Registry (SLCTR) (also searchable under the ICTRP search portal)

  • Swiss National Clinical Trials Portal (SNCTP)

  • Thai Clinical Trials Registry (TCTR) (also searchable under the ICTRP search portal)

  • Trialstreamer

  • Trial Summaries

  • Yale University Open Data Access (YODA) project

Pharmaceutical and device industry registers

• • AstraZeneca

  • Bayer HealthCare

  • Bristol-MyersSquibb

  • GlaxoSmithKline

  • Janssen

  • Johnson and Johnson

  • Lilly

  • Medtronic Inc

  • Novartis

  • Pfizer

  • Roche

  • See also Trial Summaries

Disease and other specific trials registers

There are many COVID-19 trial register collections. Some are listed here. 

There are many disease specific trials registers particularly in the field of cancer. Examples include:

• • Experimental Cancer Trial Finder (EC Trial Finder) - clinical trial database to identiyf early phase oncology trials within the UK Experimental Cancer Medicine Centres network 

  • Cancer Research UK trial finder

  • Cancer Trials Victoria (Cancer Council Victoria and Victorian Cooperative Oncology Group)

  • Arbeitsgemeinschaft Urologische Onkologie e.V (A subsection of the German Cancer Society)

  • See also the Section Research Registers

Closed databases

• ABPI (2009)

• metaRegister of RCTs

• ALOIS

If you would like to suggest registers to add to this resource please send the details to Julie Glanville.