Evidence map›Paper›PMID 38760033›Full record

ArticleBMJ open2024

Effect of metformin use on graft and patient survival in kidney transplant recipients with type 2 diabetes: a systematic review protocol.

Farooq Shamshad, Somkanya Tungsanga, Peter Senior, Soroush Shojai, Anukul Ghimire, Feng Ye, Janice Y Kung, Vinash K Hariramani, Abdullah Abdulrahman, Matthew Penney and 4 more

Abstract read
In one paragraph

Article in BMJ open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Farooq ShamshadDivision of Nephrology and Immunology, University of Alberta Faculty of Medicine & Dentistry, Edmonton, Alberta, Canada shamshad@ualberta.ca.ORCID 0009-0003-9407-2266
Somkanya TungsangaDivision of Nephrology and Immunology, University of Alberta Faculty of Medicine & Dentistry, Edmonton, Alberta, Canada.
Peter SeniorEndocrinology & Metabolism, University of Alberta Faculty of Medicine and Dentistry, Edmonton, Alberta, Canada.
Soroush ShojaiDivision of Nephrology, Department of Medicine, University of Alberta Faculty of Medicine and Dentistry, Edmonton, Alberta, Canada.ORCID 0000-0002-2969-9121
Anukul GhimireDivision of Nephrology and Immunology, University of Alberta Faculty of Medicine & Dentistry, Edmonton, Alberta, Canada.ORCID 0000-0001-9165-4920
Feng YeUniversity of Alberta, Edmonton, Alberta, Canada.
Janice Y KungJohn W. Scott Health Sciences Library, University of Alberta, Edmonton, Alberta, Canada.
Vinash K HariramaniDivision of Nephrology and Immunology, University of Alberta Faculty of Medicine & Dentistry, Edmonton, Alberta, Canada.
Abdullah AbdulrahmanDivision of Nephrology and Immunology, University of Alberta Faculty of Medicine & Dentistry, Edmonton, Alberta, Canada.ORCID 0000-0002-4863-1181
Matthew PenneyDivision of Nephrology and Immunology, University of Alberta Faculty of Medicine & Dentistry, Edmonton, Alberta, Canada.
Naima SultanaDivision of Nephrology and Immunology, University of Alberta Faculty of Medicine & Dentistry, Edmonton, Alberta, Canada.
Shezel MuneerDivision of Nephrology and Immunology, University of Alberta Faculty of Medicine & Dentistry, Edmonton, Alberta, Canada.
Ikechi OkpechiUniversity of Alberta, Edmonton, Alberta, Canada.
Aminu K BelloDivision of Nephrology and Immunology, University of Alberta Faculty of Medicine & Dentistry, Edmonton, Alberta, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMetformin is a first-line antihyperglycaemic agent for type 2 diabetes (T2DM). In addition to glycaemic control, it offers benefits related to cardiovascular health, weight neutrality and metabolic syndrome. However, its benefits in kidney transplant recipients remain unclear as metformin use is controversial in this population due to a lack of evidence and there are recommendations against its use in patients with poor kidney function. Hence, we seek to describe a protocol for a systematic review, which will assess the impact of metformin use on graft survival and mortality in kidney transplant recipients.

methodsThis protocol was guided by the standards of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses for Protocols 2015. We will search empirical databases such as MEDLINE, Embase, Cochrane Library, CINAHL and Web of Science Core Collection for relevant studies conducted in kidney transplant recipients using metformin, which report outcomes related to graft and patient survival. All studies meeting these criteria in adults and published in English from inception to 2023 will be included in our review. We will employ the Cochrane Risk of Bias Tool 2 for randomised controlled trials and the Risk of Bias in Non-randomised Studies of Intervention for non-randomised studies. We will present our data and study characteristics in a table format and determine if a meta-analysis can be performed by clinical and methodological heterogeneity, using the I ETHICS AND DISSEMINATION: Ethical approval will not be required for this review as the data used will be extracted from already published studies with publicly accessible data. As this study will assess the impact of metformin use on graft and patient survival in kidney transplant recipients, evidence gathered through it will be disseminated using traditional approaches that include open-access peer-reviewed publication, scientific presentations and a report. We will also disseminate our findings to appropriate academic bodies in charge of publishing guidelines related to T2DM and transplantation, as well as patient and research centred groups. PROSPERO REGISTRATION NUMBER: CRD42023421799.

Indexed as

Diabetes Mellitus, Type 2Graft SurvivalHypoglycemic AgentsKidney TransplantationMetforminSystematic Reviews as TopicHumansResearch DesignTransplant RecipientsHypoglycemic AgentsMetforminAdult nephrologyDiabetic nephropathy & vascular diseaseRenal transplantation

Identifiers

PMID38760033
PMCPMC11103231

What OpenQuestion holds

Texttitle and abstract
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.