UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000021932
Receipt number R000025294
Scientific Title Clinical trial registry use in anesthesiology systematic reviews: A systematic review
Date of disclosure of the study information 2016/04/16
Last modified on 2016/04/16 00:37:03

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Basic information

Public title

Clinical trial registry use in anesthesiology systematic reviews: A systematic review

Acronym

Registry use in systematic reviews

Scientific Title

Clinical trial registry use in anesthesiology systematic reviews: A systematic review

Scientific Title:Acronym

Registry use in systematic reviews

Region

North America


Condition

Condition

Publication Bias

Classification by specialty

Anesthesiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine the frequency of clinical trial registry use in systematic review searches from 5 anesthesiology journals based on 2014 Google Scholar metrics: anesthesiology subcategory from 2007-2015.

Basic objectives2

Others

Basic objectives -Others

To examine whether unpublished studies were located from these searches and/or included in the systematic review summaries or pooled effect estimates.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

1. Frequency of clinical trials registry searches reported in anesthesiology systematic reviews from 5 journals between 2007-2015.

Key secondary outcomes

2. Frequency of systematic reviewers who located unpublished trials for possible inclusion in the review.

3. Frequency of systematic reviews that included unpublished trials in systematic review summaries or pooled effect estimates.


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

Study must be a systematic review and/or meta-analysis published in the journals: Anesthesiology, Anesthesia & Analgesia, British Journal of Anaesthesia, Anaesthesia, or Regional Anesthesia & Pain Medicine between January 1, 2007-December 31, 2015.

Key exclusion criteria

All other study designs were excluded including clinical trials and observational studies.

Systematic reviews or meta-analyses published outside of the time frame and in journals not listed were not included.

Target sample size

200


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Blake Alan Umberham

Organization

Oklahoma State University Center for Health Sciences

Division name

College of Osteopathic Medicine

Zip code


Address

1111 W. 17th St.

TEL

918-582-1972

Email

blake.umberham@okstate.edu


Public contact

Name of contact person

1st name
Middle name
Last name Blake Alan Umberham

Organization

Oklahoma State University Center for Health Sciences

Division name

College of Osteopathic Medicine

Zip code


Address

1111 W. 17th St.

TEL

918-582-1972

Homepage URL

http://www.healthsciences.okstate.edu

Email

blake.umberham@okstate.edu


Sponsor or person

Institute

Oklahoma State University Center for Health Sciences

Institute

Department

Personal name



Funding Source

Organization

n/a

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



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

2016 Year 04 Month 16 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

2015 Year 05 Month 01 Day

Date of IRB


Anticipated trial start date

2015 Year 06 Month 01 Day

Last follow-up date


Date of closure to data entry


Date trial data considered complete

2015 Year 12 Month 01 Day

Date analysis concluded

2016 Year 03 Month 01 Day


Other

Other related information

systematic review


Management information

Registered date

2016 Year 04 Month 16 Day

Last modified on

2016 Year 04 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000025294


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name