ArticleCirculation2005
Thiazolidinediones, metformin, and outcomes in older patients with diabetes and heart failure: an observational study.
Article in Circulation, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02064881 (Effect of Metformin Glycinate on Postprandial Lipemia, Glycemic Control and Oxidation Markers in Type 2 Diabetes Patients), which is not on this map. Cited by 137 papers, 10 of them syntheses that pooled 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.
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.
Effect of Metformin Glycinate on Postprandial Lipemia, Glycemic Control and Oxidation Markers in Type 2 Diabetes Patients
Open the trial in the graphWho cites it
137 citing papers in PubMed, 10 syntheses or guidelines pooled it, 458 citations in OpenAlex.
- 2026 AHA/ACC/ADA/ASN Guideline for the Prevention, Detection, Evaluation, and Management of Cardiovascular-Kidney-Metabolic Syndrome: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines.Journal of the American College of Cardiology · 2026Guideline
- Clinical outcomes in type 2 diabetes patients with chronic heart failure treated with metformin: a meta-analysis.Endocrine · 2025 · on this mapPooled it
- Association of Metformin with the Mortality and Incidence of Cardiovascular Events in Patients with Pre-existing Cardiovascular Diseases.Drugs · 2022 · on this mapPooled it
- Metformin treatment in heart failure with preserved ejection fraction: a systematic review and meta-regression analysis.Cardiovascular diabetology · 2020 · on this mapPooled it
- Metformin Use and Risk of All-Cause Mortality and Cardiovascular Events in Patients With Chronic Kidney Disease-A Systematic Review and Meta-Analysis.Frontiers in endocrinology · 2020 · on this mapPooled it
- Treatment of Diabetes in Older Adults: An Endocrine Society* Clinical Practice Guideline.The Journal of clinical endocrinology and metabolism · 2019Guideline
- Pooled it
- Clinical Outcomes of Metformin Use in Populations With Chronic Kidney Disease, Congestive Heart Failure, or Chronic Liver Disease: A Systematic Review.Annals of internal medicine · 2017Pooled it
- Risk of fatal and nonfatal lactic acidosis with metformin use in type 2 diabetes mellitus.The Cochrane database of systematic reviews · 2010 · on this mapPooled it
- Impact of insulin therapy on outcomes of diabetic patients with heart failure: A systematic review and meta-analysis.Diabetes & vascular disease researchPooled it
- Effect of canagliflozin on N-terminal pro-brain natriuretic peptide in patients with type 2 diabetes and chronic heart failure according to baseline use of glucose-lowering agents.Cardiovascular diabetology · 2021 · on this mapTrial
- Association between diabetes mellitus and post-discharge outcomes in patients hospitalized with heart failure: findings from the EVEREST trial.European journal of heart failure · 2013Trial
- Metformin in non-diabetic patients presenting with ST elevation myocardial infarction: rationale and design of the glycometabolic intervention as adjunct to primary percutaneous intervention in ST elevation myocardial infarction (GIPS)-III trial.Cardiovascular drugs and therapy · 2012Trial
- Design, history and results of the Thiazolidinedione Intervention with vitamin D Evaluation (TIDE) randomised controlled trial.Diabetologia · 2012Trial
- Short-term treatment with metformin improves the cardiovascular risk profile in first-degree relatives of subjects with type 2 diabetes mellitus who have a metabolic syndrome and normal glucose tolerance without changes in C-reactive protein or fibrinogen.Clinics (Sao Paulo, Brazil) · 2009Trial
- Metformin treatment in diabetes and heart failure: when academic equipoise meets clinical reality.Trials · 2009Trial
- Repurposing metformin for cardioprotection: mechanisms and therapeutic potential across cardiovascular pathologies.Frontiers in pharmacology · 2026Review
- Influence of Metformin Discontinuation on Readmission Rate in Patients With Acute Heart Failure.Journal of community hospital internal medicine perspectives · 2024Article
- The Association of Metformin With Heart Failure in Patients With Diabetes Mellitus Receiving Anthracycline Chemotherapy.JACC. CardioOncology · 2023Article
- Consensus document of the management of type 2 diabetes and heart failure: Consejo Interamericano de Falla Cardíaca e Hipertensión Pulmonar (CIFACAH) and Inter-American Society of Cardiology (IASC).Archivos de cardiologia de Mexico · 2023Article
77 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundInsulin-sensitizing drugs of the thiazolidinedione class and metformin are commonly prescribed to treat diabetes in patients with heart failure despite strong warnings from the Food and Drug Administration against this practice. Whether this results in adverse outcomes is unknown. METHODS AND
resultsWe conducted a retrospective cohort study of 16,417 Medicare beneficiaries with diabetes discharged after hospitalization with the principal discharge diagnosis of heart failure. The association between antidiabetic drug prescriptions and outcomes was assessed in multivariable hierarchical Cox proportional hazards models, with adjustment for patient, physician, and hospital variables and accounting for the clustering of patients within hospitals. The primary outcome of the study was time to death due to all causes. Secondary outcomes included time to readmission for all causes or for heart failure. Crude 1-year mortality rates were lower among the 2226 patients treated with a thiazolidinedione (30.1%) or the 1861 treated with metformin (24.7%) compared with that among the 12,069 treated with neither insulin-sensitizing drug (36.0%, P= or <0.0001 for both comparisons). In multivariable models, treatment with the thiazolidinediones (hazard ratio [HR] 0.87, 95% CI 0.80 to 0.94) or metformin (HR=0.87, 95% CI 0.78 to 0.97) was associated with significantly lower risks of death. There was no association with treatment with sulfonylureas (HR=0.99, 95% CI 0.91 to 1.08) or insulin (HR=0.96, 95% CI 0.88 to 1.05) and mortality. Admissions for all causes did not differ with either insulin sensitizer. There was a higher risk of readmission for heart failure with thiazolidinedione treatment (HR 1.06, 95% CI 1.00 to 1.09) and a lower risk with metformin treatment (HR 0.92, 95% CI 0.92 to 0.99).
conclusionsThis observational study suggests that thiazolidinediones and metformin are not associated with increased mortality and may improve outcomes in older patients with diabetes and heart failure. Randomized trials are warranted to corroborate these findings.
Indexed as
Identifiers
What Socratic holds
Registered trials
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.