Effects of once-weekly subcutaneous retatrutide on weight and metabolic markers: A systematic review and meta-analysis of randomized controlled trials

Aim: To assess the effects of once-weekly subcutaneous retatrutide on weight and metabolic markers and the occurrence of side effects in patients with overweight, obesity and/or type 2 diabetes (T2D). Methods: PubMed, Embase, Cochrane Library, and ClinicalTrials.gov databases were systematically sea...

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Main Authors: Eric Pasqualotto, Rafael Oliva Morgado Ferreira, Matheus Pedrotti Chavez, Alexandre Hohl, Marcelo Fernando Ronsoni, Tales Pasqualotto, Francisco Cezar Aquino de Moraes, Larissa Hespanhol, Janine Midori Figueiredo Watanabe, Carine Lütkemeyer, Simone van de Sande-Lee
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Metabolism Open
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Online Access:http://www.sciencedirect.com/science/article/pii/S2589936824000537
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author Eric Pasqualotto
Rafael Oliva Morgado Ferreira
Matheus Pedrotti Chavez
Alexandre Hohl
Marcelo Fernando Ronsoni
Tales Pasqualotto
Francisco Cezar Aquino de Moraes
Larissa Hespanhol
Janine Midori Figueiredo Watanabe
Carine Lütkemeyer
Simone van de Sande-Lee
author_facet Eric Pasqualotto
Rafael Oliva Morgado Ferreira
Matheus Pedrotti Chavez
Alexandre Hohl
Marcelo Fernando Ronsoni
Tales Pasqualotto
Francisco Cezar Aquino de Moraes
Larissa Hespanhol
Janine Midori Figueiredo Watanabe
Carine Lütkemeyer
Simone van de Sande-Lee
author_sort Eric Pasqualotto
collection DOAJ
description Aim: To assess the effects of once-weekly subcutaneous retatrutide on weight and metabolic markers and the occurrence of side effects in patients with overweight, obesity and/or type 2 diabetes (T2D). Methods: PubMed, Embase, Cochrane Library, and ClinicalTrials.gov databases were systematically searched for placebo-controlled, randomized clinical trials (RCTs) published up until February 23, 2024. Weighted mean differences (WMDs) for continuous outcomes and risk ratios (RRs) for binary endpoints were computed, with 95 % confidence intervals (CIs). Results: A total of three studies were included, comprising 640 patients, of whom 510 were prescribed retatrutide. Compared with placebo, retatrutide significantly reduced body weight (WMD -10.66 kg; 95 % CI -17.63, −3.69), body mass index (WMD -4.53 kg/m2; 95 % CI -7.51, −1.55), and waist circumference (WMD -6.61 cm; 95 % CI -13.17, −0.05). In addition, retatrutide significantly increased the proportion of patients who achieved a weight reduction of ≥5 % (RR 2.92; 95 % CI 2.17–3.93), ≥10 % (RR 9.32; 95 % CI 4.56–19.06), ≥15 % (RR 18.40; 95 % CI 6.00–56.42), and ≥20 % (RR 16.61; 95 % CI 4.17–66.12). Conclusions: In this meta-analysis, the use of once-weekly subcutaneous retatrutide was associated with a significant reduction in body weight and improvement of metabolic markers in patients with overweight, obesity and/or T2D, compared with placebo, with an increase in non-severe gastrointestinal and hypersensitivity adverse events. Phase 3 RCTs are expected to shed further light on the efficacy and safety of once-weekly subcutaneous retatrutide over the long term.
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spelling doaj-art-9dfce746a63c46d192f543d55753de9d2025-08-20T01:59:04ZengElsevierMetabolism Open2589-93682024-12-012410032110.1016/j.metop.2024.100321Effects of once-weekly subcutaneous retatrutide on weight and metabolic markers: A systematic review and meta-analysis of randomized controlled trialsEric Pasqualotto0Rafael Oliva Morgado Ferreira1Matheus Pedrotti Chavez2Alexandre Hohl3Marcelo Fernando Ronsoni4Tales Pasqualotto5Francisco Cezar Aquino de Moraes6Larissa Hespanhol7Janine Midori Figueiredo Watanabe8Carine Lütkemeyer9Simone van de Sande-Lee10Department of Medicine, Federal University of Santa Catarina, Florianópolis, Brazil; Corresponding author. Campus Universitário, Rua Professora Maria Flora Pausewang, s/nº, Trindade, 88036-800, Florianópolis, SC, Brazil.Department of Medicine, Federal University of Santa Catarina, Florianópolis, BrazilDepartment of Medicine, Federal University of Santa Catarina, Florianópolis, BrazilDepartment of Medicine, Federal University of Santa Catarina, Florianópolis, BrazilDepartment of Medicine, Federal University of Santa Catarina, Florianópolis, BrazilDepartment of Medicine, Universidade Alto Vale do Rio do Peixe, Caçador, BrazilDepartment of Medicine, Federal University of Pará, Belém, BrazilDepartment of Medicine, Federal University of Campina Grande, Campina Grande, BrazilDepartment of Medicine, State University of Piauí, Teresina, BrazilIndependent Researcher, Florianópolis, SC, BrazilDepartment of Medicine, Federal University of Santa Catarina, Florianópolis, BrazilAim: To assess the effects of once-weekly subcutaneous retatrutide on weight and metabolic markers and the occurrence of side effects in patients with overweight, obesity and/or type 2 diabetes (T2D). Methods: PubMed, Embase, Cochrane Library, and ClinicalTrials.gov databases were systematically searched for placebo-controlled, randomized clinical trials (RCTs) published up until February 23, 2024. Weighted mean differences (WMDs) for continuous outcomes and risk ratios (RRs) for binary endpoints were computed, with 95 % confidence intervals (CIs). Results: A total of three studies were included, comprising 640 patients, of whom 510 were prescribed retatrutide. Compared with placebo, retatrutide significantly reduced body weight (WMD -10.66 kg; 95 % CI -17.63, −3.69), body mass index (WMD -4.53 kg/m2; 95 % CI -7.51, −1.55), and waist circumference (WMD -6.61 cm; 95 % CI -13.17, −0.05). In addition, retatrutide significantly increased the proportion of patients who achieved a weight reduction of ≥5 % (RR 2.92; 95 % CI 2.17–3.93), ≥10 % (RR 9.32; 95 % CI 4.56–19.06), ≥15 % (RR 18.40; 95 % CI 6.00–56.42), and ≥20 % (RR 16.61; 95 % CI 4.17–66.12). Conclusions: In this meta-analysis, the use of once-weekly subcutaneous retatrutide was associated with a significant reduction in body weight and improvement of metabolic markers in patients with overweight, obesity and/or T2D, compared with placebo, with an increase in non-severe gastrointestinal and hypersensitivity adverse events. Phase 3 RCTs are expected to shed further light on the efficacy and safety of once-weekly subcutaneous retatrutide over the long term.http://www.sciencedirect.com/science/article/pii/S2589936824000537RetatrutideBody weightObesityMetabolism
spellingShingle Eric Pasqualotto
Rafael Oliva Morgado Ferreira
Matheus Pedrotti Chavez
Alexandre Hohl
Marcelo Fernando Ronsoni
Tales Pasqualotto
Francisco Cezar Aquino de Moraes
Larissa Hespanhol
Janine Midori Figueiredo Watanabe
Carine Lütkemeyer
Simone van de Sande-Lee
Effects of once-weekly subcutaneous retatrutide on weight and metabolic markers: A systematic review and meta-analysis of randomized controlled trials
Metabolism Open
Retatrutide
Body weight
Obesity
Metabolism
title Effects of once-weekly subcutaneous retatrutide on weight and metabolic markers: A systematic review and meta-analysis of randomized controlled trials
title_full Effects of once-weekly subcutaneous retatrutide on weight and metabolic markers: A systematic review and meta-analysis of randomized controlled trials
title_fullStr Effects of once-weekly subcutaneous retatrutide on weight and metabolic markers: A systematic review and meta-analysis of randomized controlled trials
title_full_unstemmed Effects of once-weekly subcutaneous retatrutide on weight and metabolic markers: A systematic review and meta-analysis of randomized controlled trials
title_short Effects of once-weekly subcutaneous retatrutide on weight and metabolic markers: A systematic review and meta-analysis of randomized controlled trials
title_sort effects of once weekly subcutaneous retatrutide on weight and metabolic markers a systematic review and meta analysis of randomized controlled trials
topic Retatrutide
Body weight
Obesity
Metabolism
url http://www.sciencedirect.com/science/article/pii/S2589936824000537
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