Evidence mapPaperPMID 40988019Full record

Observational studyCardiovascular diabetology2025

Fixed-dose vs loose-dose combination antidiabetic therapy and cardiorenal outcomes in type 2 diabetes: a nationwide comparative effectiveness study.

Qiaoling Liu, Paul Welsh, Carlos Celis-Morales, Jennifer S Lees, Patrick B Mark, Laura Pazzagli

Abstract readComparative StudyObservational Study
In one paragraph

Observational study in Cardiovascular diabetology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Observational
  2. 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

6 authors.

Qiaoling LiuSchool of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK.
Paul WelshSchool of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK.
Carlos Celis-MoralesSchool of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK.
Jennifer S LeesSchool of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK.
Patrick B MarkSchool of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK.
Laura PazzagliClinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden. laura.pazzagli@ki.se.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCombination therapy is gaining attention in type 2 diabetes management due to its potential to reach glycaemic goals within a shorter period. However, the long-term comparative cardiorenal effectiveness of fixed- versus loose-dose combinations remains unclear. This study aimed to assess whether oral antidiabetic fixed-dose combination (FDC) therapy is associated with improved cardiorenal outcomes in adults with type 2 diabetes compared with loose-dose combination (LDC) therapy. A secondary objective was to evaluate the mediating role of medication adherence in these associations.

methodsThis population-based, new-user, active-comparator cohort study used Swedish national registers. Propensity score matching without replacement was applied. Study outcomes included acute myocardial infarction, atrial fibrillation, unstable angina, heart failure, ischaemic stroke, and eGFR < 30 ml/min/1.73m

resultsThe median follow-up time was 4.0 years for cardiovascular outcomes and 3.8 years for kidney outcomes. In the matched cohort (mean age 62 years; 67% male), FDC users had higher treatment adherence (68.6 vs. 46.5%). FDC was associated with a lower rate of heart failure (HR = 0.88; 95% CI 0.79, 0.99), with adherence mediating 47% of this association. In people aged ≥ 65 years, FDC was associated with a lower rate of heart failure (HR = 0.79; 95% CI 0.69, 0.91). The observed association was attenuated with further matching for diabetes duration or when drugs were matched at the ATC code level. No associations between FDC use and other outcomes were identified.

conclusionsFDC therapy in people with type 2 diabetes was associated with a lower rate of heart failure, particularly in older adults. Higher medication adherence appeared to mediate nearly half of this association.

Indexed as

Blood GlucoseCardiovascular DiseasesDiabetes Mellitus, Type 2Hypoglycemic AgentsKidneyKidney DiseasesAdministration, OralAgedBiomarkersComparative Effectiveness ResearchDrug CombinationsFemaleHumansMaleMedication AdherenceMiddle AgedBiomarkersBlood GlucoseDrug CombinationsHypoglycemic AgentsAntidiabetic agentComparative effectivenessFixed-dose combinationHeart failureType 2 diabetes

Identifiers

PMID40988019
PMCPMC12455815

What Socratic holds

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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 Socratic graph.