Effect of Semaglutide Versus Placebo on Heart Failure With Preserved Ejection Fraction in Obese Patients: A Systematic Review
Bibliographic record
Abstract
Heart failure (HF) is a major global health concern and can be classified into different phenotypes based on left ventricular ejection fraction (LVEF), including heart failure with preserved ejection fraction (HFpEF), reduced ejection fraction, and mildly reduced ejection fraction. This systematic review aims to determine the effect of semaglutide compared to placebo in obese patients with HFpEF. Following PRISMA 2020 guidelines, relevant studies published from January 2021 to August 2024 were identified through searches in PubMed and Science Direct. Randomized clinical trials (RCTs), cohort studies, and case-control studies were considered; however, only two randomized controlled trials (RCTs) and one retrospective cohort ultimately met the inclusion criteria, encompassing a total of 1463 participants with HFpEF and obesity. The risk of bias was evaluated utilizing the Cochrane risk of bias tool for RCTs and the Newcastle-Ottawa Scale (NOS) for the retrospective cohort. In each study, participants were divided into two groups receiving either semaglutide or placebo. The findings after a 52-week follow-up showed that treatment with semaglutide 2.4 mg once weekly resulted in a significant reduction in biomarkers associated with HF. Specifically, baseline C-reactive protein (CRP) values decreased by 43% and 42% in the RCTs and 37% in the retrospective cohort. NT-proBNP levels declined by 20.90% and 23.20% in the RCTs and 15.80% in the cohort, compared to the placebo group. The reductions in CRP and NT-proBNP are clinically relevant, as elevated levels of these biomarkers are associated with worse outcomes in HFpEF. In addition, participants in the semaglutide group experienced a reduction in body weight ranging from 9% to 13% across the three studies, while those in the placebo group showed weight loss between 2% and 7% across the studies. Functional improvement was also observed, with the Kansas City Cardiomyopathy Questionnaire-Clinical Summary Score (KCCQ-CSS) increasing by 13 to 16 points in the semaglutide group compared to the placebo. These results suggest that semaglutide may be a promising treatment for HFpEF in obese patients, offering not only significant weight loss but also improvements in biomarkers and quality of life. Therefore, semaglutide appears to provide potential cardiovascular and metabolic benefits in addition to its established weight-reducing effects, although findings should be interpreted with caution given the limited number of included studies.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.005 | 0.017 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.012 | 0.011 |
| Bibliometrics | 0.004 | 0.004 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".