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Attribution of non-ClinicalTrials.gov registries among World Health Organization International Clinical Trials Registry Platform-registered trials from 2014 to 2018: a meta-epidemiological study

Attribution of non-ClinicalTrials.gov registries among World Health Organization International Clinical Trials Registry Platform-registered trials from 2014 to 2018: a meta-epidemiological study - Attribution of non-ClinicalTrials.gov registries from 2014 to 2018

Status
Active, not recruiting
Phases
Unknown
Study type
Unknown
Source
JPRN
Registry ID
JPRN-UMIN000034401
Enrollment
Unknown
Registered
2018-10-09
Start date
2019-03-12
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

registered trials on World Health Organization International Clinical Trials Registry Platform (ICTRP)

Interventions

None listed

Sponsors

Department of Psychiatry, Seichiryo Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: All clinical trials registered on ICTRP from 1 January 2014 to 31 December 2018.

Exclusion criteria

Exclusion criteria: Observational studies, using <study type> in the data set.

Design outcomes

Primary

MeasureTime frame
The total attribution of non-ClinicalTrials.gov registries among ICTRP-registered trials in each year from 2014 to 2018.—

Secondary

MeasureTime frame
1. The attribution of each non-ClinicalTrials.gov registry among ICTRP-registered trials in each year from 2014 to 2018. 2. Recruitment status, target sample size, study type, study design, countries, prospective registration (Yes, No), funding (Yes, No), and study phase of the trials on ClinicalTrials.gov and on other registries from 2014 to 2018. 3. Distribution of primary registries about trials of top five countries in order of the quantity of registered trials among ICTRP—

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