UMIN-CTR Clinical Trial
| Unique ID issued by UMIN | UMIN000028325 |
|---|---|
| Receipt number | R000031688 |
| Scientific Title | Association between statistical significance and publication status and time to publication among systematic reviews |
| Date of disclosure of the study information | 2017/07/24 |
| Last modified on | 2019/02/01 11:19:13 |
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Basic information
Public title
Association between statistical significance and publication status and time to publication among systematic reviews
Acronym
Association between statistical significance and publication status and time to publication among systematic reviews
Scientific Title
Association between statistical significance and publication status and time to publication among systematic reviews
Scientific Title:Acronym
Association between statistical significance and publication status and time to publication among systematic reviews
Region
| Japan |
Condition
Condition
Systematic reviews
Classification by specialty
| Not applicable |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
We aim to evaluate the association between statistical significance and other factors of possible influence and publication status using a number of criteria (full publication in a journal article, submission to any journals, presentation of an abstract at a meeting).
Basic objectives2
Others
Basic objectives -Others
To investigate publication bias and time-lag bias
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
Our primary outcome is (i) time from protocol registration to the publication of SRs, defined as the time from the registration date to the acceptance date.
Key secondary outcomes
Secondary outcomes will include (ii) proportion of SRs published in journal articles, (iii) a composite outcome of full-publication or presentation at scientific conferences, and (iv) submission to any journals.
Base
Study type
Observational
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
All SR protocols of interventions of randomized controlled trials registered in the PROSPERO by 31st Dec 2014 will be eligible.
Key exclusion criteria
We will exclude SRs whose analysis has not been completed and SRs without quantitative synthesis. We will exclude Cochrane protocols and reviews. We will also exclude SRs of diagnostic test accuracy and prognosis, and SRs with network meta-analysis, individual patient data meta-analyses.
Target sample size
220
Research contact person
Name of lead principal investigator
| 1st name | |
| Middle name | |
| Last name | Yasushi Tsujimoto |
Organization
Graduate School of Medicine, Kyoto University
Division name
Department of Healthcare Epidemiology
Zip code
Address
Yoshida Konoe-cho, Sakyo-ku, Kyoto, Japan
TEL
+81-75-753-9467
yssh0108@yahoo.co.jp
Public contact
Name of contact person
| 1st name | |
| Middle name | |
| Last name | Yasushi Tsujimoto |
Organization
Graduate School of Medicine, Kyoto University
Division name
Department of Healthcare Epidemiology
Zip code
Address
Yoshida Konoe-cho, Sakyo-ku, Kyoto, Japan
TEL
+81-75-753-9467
Homepage URL
yssh0108@yahoo.co.jp
Sponsor or person
Institute
Kyoto University
Institute
Department
Personal name
Funding Source
Organization
This study is supported in part by JSPS KAKENHI (Grant-in-Aid for Scientific Research) Grant Number 17K19808.
Organization
Division
Category of Funding Organization
Japanese Governmental office
Nationality of Funding Organization
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
Address
Tel
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
| 2017 | Year | 07 | Month | 24 | Day |
Related information
URL releasing protocol
Publication of results
Unpublished
Result
URL related to results and publications
Number of participants that the trial has enrolled
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
| 2017 | Year | 07 | Month | 21 | Day |
Date of IRB
Anticipated trial start date
| 2017 | Year | 11 | Month | 01 | Day |
Last follow-up date
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
| 2019 | Year | 01 | Month | 26 | Day |
Other
Other related information
This study aims to investigate whether or not publication bias and time lag bias in SRs based on statistical significance exist.
Management information
Registered date
| 2017 | Year | 07 | Month | 21 | Day |
Last modified on
| 2019 | Year | 02 | Month | 01 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000031688
| Research Plan | |
|---|---|
| Registered date | File name |
| Research case data specifications | |
|---|---|
| Registered date | File name |
| Research case data | |
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| Registered date | File name |
