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Name:
UMIN ID:

Recruitment status Completed
Unique ID issued by UMIN UMIN000038981
Receipt No. R000044360
Scientific Title How comprehensive is the Cochrane Central Register of Controlled Trials for identifying clinical trial registration?: a diagnostic study
Date of disclosure of the study information 2019/12/26
Last modified on 2020/08/11

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Basic information
Public title How comprehensive is the Cochrane Central Register of Controlled Trials for identifying clinical trial registration?: a diagnostic study
Acronym Searching the Cochrane Central Register of Controlled Trials for identifying clinical trial registration
Scientific Title How comprehensive is the Cochrane Central Register of Controlled Trials for identifying clinical trial registration?: a diagnostic study
Scientific Title:Acronym Searching the Cochrane Central Register of Controlled Trials for identifying clinical trial registration
Region
Japan Asia(except Japan) North America
South America Australia Europe
Africa

Condition
Condition Records about ongoing or unpublished studies registered on the International Clinical Trials Registry Platform (ICTRP) or ClinicalTrials.gov (CT.gov) in the latest interventional Cochrane Database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)
Classification by specialty
Not applicable
Classification by malignancy Others
Genomic information NO

Objectives
Narrative objectives1 To evaluate the sensitivity and number needed to read (NNR), with its 95 % confidence interval, of Cochrane Central Register of Controlled Trials (CENTRAL) search to identify ongoing or unpublished studies.
Basic objectives2 Others
Basic objectives -Others None
Trial characteristics_1 Exploratory
Trial characteristics_2 Pragmatic
Developmental phase Not applicable

Assessment
Primary outcomes the sensitivity, with its 95 % confidence interval, of CENTRAL search
Key secondary outcomes NNR, with its 95 % confidence interval, of CENTRAL search

Base
Study type Others,meta-analysis etc

Study design
Basic design
Randomization
Randomization unit
Blinding
Control
Stratification
Dynamic allocation
Institution consideration
Blocking
Concealment

Intervention
No. of arms
Purpose of intervention
Type of intervention
Interventions/Control_1
Interventions/Control_2
Interventions/Control_3
Interventions/Control_4
Interventions/Control_5
Interventions/Control_6
Interventions/Control_7
Interventions/Control_8
Interventions/Control_9
Interventions/Control_10

Eligibility
Age-lower limit

Not applicable
Age-upper limit

Not applicable
Gender Male and Female
Key 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
Key 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).
Target sample size 0

Research contact person
Name of lead principal investigator
1st name Masahiro
Middle name
Last name Banno
Organization Seichiryo Hospital
Division name Department of Psychiatry
Zip code 4660064
Address 4-16-27, Tsurumai, Showa-ku, Nagoya City, Aichi Prefecture, 466-0064 Japan
TEL +81-52-741-1231
Email delerium.rurutia2018@gmail.com

Public contact
Name of contact person
1st name Masahiro
Middle name
Last name Banno
Organization Seichiryo Hospital
Division name Department of Psychiatry
Zip code 4660064
Address 4-16-27, Tsurumai, Showa-ku, Nagoya City, Aichi Prefecture, 466-0064 Japan
TEL +81-52-741-1231
Homepage URL
Email delerium.rurutia2018@gmail.com

Sponsor
Institute Department of Psychiatry, Seichiryo Hospital
Institute
Department

Funding Source
Organization 1. Systematic Review Workshop Peer Support Group (SRWS-PSG)
2. Department of Respiratory Medicine, Hyogo Prefectural Amagasaki General Medical Center
3. Nagoya University Academy of Psychiatry
Organization
Division
Category of Funding Organization Other
Nationality of Funding Organization Japan

Other related organizations
Co-sponsor
Name of secondary funder(s)

IRB Contact (For public release)
Organization Seichiryo Hospital
Address 4-16-27, Tsurumai, Showa-ku, Nagoya City, Aichi Prefecture, 466-0064 Japan
Tel +81-52-741-1231
Email delerium.rurutia2018@gmail.com

Secondary IDs
Secondary IDs NO
Study ID_1
Org. issuing International ID_1
Study ID_2
Org. issuing International ID_2
IND to MHLW

Institutions
Institutions

Other administrative information
Date of disclosure of the study information
2019 Year 12 Month 26 Day

Related information
URL releasing protocol https://medrxiv.org/cgi/content/short/2019.12.26.19014274v1
Publication of results Published

Result
URL related to results and publications https://bmcmedresmethodol.biomedcentral.com/articles/10.1186/s12874-020-01083-y
Number of participants that the trial has enrolled 247
Results
Results date posted
Results Delayed
Results Delay Reason
Date of the first journal publication of results
Baseline Characteristics
Participant flow
Adverse events
Outcome measures
Plan to share IPD
IPD sharing Plan description

Progress
Recruitment status Completed
Date of protocol fixation
2019 Year 12 Month 27 Day
Date of IRB
2019 Year 12 Month 09 Day
Anticipated trial start date
2020 Year 01 Month 02 Day
Last follow-up date
2020 Year 04 Month 12 Day
Date of closure to data entry
2020 Year 04 Month 15 Day
Date trial data considered complete
2020 Year 04 Month 15 Day
Date analysis concluded
2020 Year 04 Month 15 Day

Other
Other related information Sensitivity, and its 95 % confidence interval, of CENTRAL search

Management information
Registered date
2019 Year 12 Month 25 Day
Last modified on
2020 Year 08 Month 11 Day


Link to view the page
URL(English) https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000044360

Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name


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