8 Clinical Trial Databases Open to Patient Search
8. Cochrane Central Register of Controlled Trials - Evidence-Based Research Repository

The Cochrane Central Register of Controlled Trials (CENTRAL) serves as the most comprehensive database of randomized controlled trials and quasi-randomized trials in healthcare, providing patients and healthcare providers with access to high-quality evidence from clinical research worldwide. This meticulously curated repository contains over 1 million trial records, representing the gold standard for evidence-based medicine and systematic review research. While CENTRAL primarily serves researchers conducting systematic reviews and meta-analyses, patients can leverage this database to identify completed trials relevant to their conditions and understand the evidence base supporting various treatment approaches. The database's rigorous inclusion criteria ensure that all trials meet specific methodological standards, providing patients with confidence in the quality and reliability of the research findings. CENTRAL's comprehensive coverage includes trials published in major medical journals as well as those identified through extensive handsearching of conference proceedings, thesis databases, and grey literature sources, ensuring that important research is not overlooked due to publication bias. Patients benefit from CENTRAL's detailed trial descriptions, which include information about study populations, interventions, outcomes, and methodological quality assessments. The database's integration with Cochrane Reviews provides patients with access to systematic analyses of trial data, offering insights into the overall effectiveness and safety of various treatments across multiple studies. CENTRAL's commitment to global health research ensures comprehensive coverage of trials conducted in diverse healthcare settings and populations, providing patients with a truly international perspective on treatment evidence.