Evidence map›Paper›PMID 33531823›Full record

ReviewDiabetes, metabolic syndrome and obesity : targets and therapy2021

Overview of Clinical Trials on Type 2 Diabetes Mellitus: A Comprehensive Analysis of the ClinicalTrials.gov Database.

Jianyan Long, Ruiming Liang, Qiuyi Zheng, Gang Yuan, Ziyi Xin, Xinwen Chen, Fenghua Lai, Yihao Liu

Open access · goldAbstract readReview
In one paragraph

Review in Diabetes, metabolic syndrome and obesity : targets and therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% of its field
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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Time to publication for results of clinical trials.The Cochrane database of systematic reviews · 2024
    Pooled it
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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

8 authors at 1 institution in 1 country.

Jianyan Long *Clinical Trials Unit, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, People's Republic of China.
Ruiming Liang *Clinical Trials Unit, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, People's Republic of China.
Qiuyi ZhengClinical Trials Unit, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, People's Republic of China.
Gang YuanPhase I Clinical Trial Center, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, People's Republic of China.
Ziyi XinDepartment of Medical Records, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, People's Republic of China.
Xinwen ChenDepartment of Endocrinology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, People's Republic of China.
Fenghua LaiDepartment of Endocrinology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, People's Republic of China.ORCID 0000-0002-3562-7132
Yihao LiuClinical Trials Unit, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, People's Republic of China.ORCID 0000-0003-3270-9797
Sun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeA better understanding of the current features of type 2 diabetes mellitus (T2DM)-related clinical trials is important for improving designs of clinical trials and identifying neglected areas of research. It was hypothesized that the trial registration policy promoted the designs of T2DM-related trials over the years. Therefore, this study aimed to present a comprehensive overview of T2DM-related clinical trials registered in the ClinicalTrials.gov database.

methodsT2DM-related clinical trials registered in the ClinicalTrials.gov database were searched and assessed the characteristics of the relevant trials. We searched PubMed and Google Scholar for the publication statuses of the primary completed trials.

resultsOverall, 5117 T2DM-related trials were identified for analysis. Of the interventional trials, 71.5% had a primary treatment purpose while only 8.9% were prevention or health service. There were more interventional trials registered prior to patient recruitment between 2012 and 2019 than between 2004 and 2011 (44.6% vs 19.9%,

conclusionAlthough the ClinicalTrials.gov database did not include all clinical trials, the trials registered in the ClinicalTrials.gov database still accounted for most of the clinical studies. Encouragingly, more interventional trials were registered prior to patient recruitment over the years. The majority of T2DM-related clinical trials focused on drug-related treatment, and trials regarding prevention in T2DM should be promoted. More attention should be paid to improve the publication and dissemination of clinical trials results.

Indexed as

clinical trialsClinicalTrials.govpublication statustype 2 diabetes mellitus

Identifiers

PMID33531823
PMCPMC7847376
OpenAlexW3124155924

What OpenQuestion holds

Textmetadata
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.