Evidence map›Paper›PMID 30537226›Full record

Observational studyDiabetes, obesity & metabolism2019

How representative of a general type 2 diabetes population are patients included in cardiovascular outcome trials with SGLT2 inhibitors? A large European observational study.

Kåre I Birkeland, Johan Bodegard, Anna Norhammar, Josephina G Kuiper, Elena Georgiado, Wendy L Beekman-Hendriks, Marcus Thuresson, Marc Pignot, Ron M C Herings, Adriaan Kooy

Abstract readObservational Study
In one paragraph

Observational study in Diabetes, obesity & metabolism, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 2 pooled it
–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

41 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  15. Prevention of Cardiorenal Complications with Sodium-Glucose Cotransporter Type 2 Inhibitors: A Narrative Review.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2022
    Review
  16. Gender differences in outcome in patients with diabetes mellitus.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2022
    Article
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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

10 authors.

Kåre I BirkelandDepartment of Transplantation Medicine, Division of Surgery, Inflammatory Medicine and Transplantation, Oslo University Hospital and University of Oslo, Oslo, Norway.ORCID 0000-0003-3002-6933
Johan BodegardAstraZeneca Nordic-Baltic, Oslo, Norway.ORCID 0000-0001-5423-3967
Anna NorhammarKarolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.ORCID 0000-0002-4467-0132
Josephina G KuiperPHARMO Institute for Drug Outcomes Research, Utrecht, The Netherlands.
Elena GeorgiadoTeam Gesundheit GmbH, Essen, Germany.
Wendy L Beekman-HendriksAstraZeneca, Den Haag, The Netherlands.
Marcus ThuressonStatisticon AB, Uppsala, Sweden.
Marc PignotKantar Health GmbH, Munich, Germany.
Ron M C HeringsPHARMO Institute for Drug Outcomes Research, Utrecht, The Netherlands.
Adriaan KooyUniversity Medical Center Groningen and Bethesda Diabetes Research Center, Hoogeveen, Groningen, The Netherlands.ORCID 0000-0002-8853-0019

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsEnrollment criteria vary substantially among cardiovascular outcome trials (CVOTs) of sodium-glucose cotransporter-2 inhibitors (SGLT-2is), which impacts the relationship between a trial population and the general type 2 diabetes (T2D) population. The aim of this study was to evaluate the representativeness of four SGLT-2i CVOTs of a general T2D population.

methodsT2D patients from Germany, The Netherlands, Norway and Sweden were included in the study. Given the available data per country, key inclusion and exclusion criteria were defined by diagnoses, procedures and drug treatments to facilitate comparability among countries. Representativeness was determined by dividing the number of patients fulfilling the key enrolment criteria of each CVOT (CANVAS, DECLARE-TIMI 58, EMPA-REG OUTCOME, VERTIS-CV) by the total T2D population.

resultsIn 2015, a total T2D population of 803 836 patients was identified in Germany (n = 239 485), in The Netherlands (n = 36 213), in Norway (n = 149 782) and in Sweden (n = 378 356). These populations showed a 25% to 44% cardiovascular (CV) disease baseline prevalence and high CV-preventive drug use (>80%). The general T2D population had less prevalent CV disease and patients were slightly older than those included in the CVOTs. The DECLARE-TIMI 58 trial had the highest representativeness, 59% compared to the general T2D population, and this representativeness was almost 2-, 3- and 4-fold higher compared to the CANVAS (34%), EMPA-REG OUTCOME (21%) and VERTIS-CV (17%) trials, respectively.

conclusionsIn large T2D populations within Europe, consistent patterns of representativeness of CVOTs were found when applying the main enrolment criteria. The DECLARE-TMI 58 trial had the highest representativeness, indicating that it included and examined patients who are most representative of the general T2D patients in the studied countries.

Indexed as

Clinical Trials as TopicPatient SelectionAgedAged, 80 and overCardiovascular DiseasesDiabetes Mellitus, Type 2FemaleGermanyHumansMaleMiddle AgedNetherlandsNorwaySodium-Glucose Transporter 2 InhibitorsSwedenSodium-Glucose Transporter 2 Inhibitorscardiovascular diseasecardiovascular outcome trialobservational studyrepresentativenessSGLT2 inhibitors

Identifiers

PMID30537226
PMCPMC6590461

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Registered trials

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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.