Skip to content

How comprehensive is the Cochrane Central Register of Controlled Trials for identifying clinical trial registration?: a diagnostic study

How comprehensive is the Cochrane Central Register of Controlled Trials for identifying clinical trial registration?: a diagnostic study - Searching the Cochrane Central Register of Controlled Trials for identifying clinical trial registration

Status
Active, not recruiting
Phases
Unknown
Study type
Unknown
Source
JPRN
Registry ID
JPRN-UMIN000038981
Enrollment
Unknown
Registered
2019-12-26
Start date
2020-01-02
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Records about ongoing or unpublished studies registered on the International Clinical Trials Registry Platform (ICTRP) or ClinicalTrials.gov (CT.gov) in the latest interventional Cochrane Database of Systematic Reviews (CDSRs)

Interventions

None listed

Sponsors

Department of Psychiatry, Seichiryo Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Inclusion criteria about CDSRs: CDSRs during the last six months. Inclusion criteria about ongoing or unpublished studies for reference standard: records about ongoing or unpublished studies registered on the ICTRP or CT.gov in the included interventional CDSRs

Exclusion criteria

Exclusion criteria: Exclusion criteria about CDSRs: CDSRs that used Cochrane Review Group Specialized Registers or CDSRs that did not use CENTRAL, ICTRP, or CT.gov. CDSRs that searched non-randomized trials, the trials other than randomized controlled trials (RCTs) or quasi-randomized controlled trials (quasi-RCTs).

Design outcomes

Primary

MeasureTime frame
the sensitivity, with its 95 % confidence interval, of CENTRAL search

Secondary

MeasureTime frame
NNR, with its 95 % confidence interval, of CENTRAL search

Countries

Japan,Asia(except Japan),North America,South America,Australia,Europe,Africa

Contacts

Public ContactMasahiro Banno

Seichiryo Hospital Department of Psychiatry

delerium.rurutia2018@gmail.com+81-52-741-1231

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026