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semaglutide glp 1 agonist case series 2026-04-12 PubMed

GLP-1 RAs Show Promising Weight Loss and Safety in Older Adults

Geriatric Pharmacotherapy Case Series: GLP-1 RA for Weight Management in Older Adults.

Background

The prevalence of obesity in older adults is a significant public health challenge, contributing to numerous comorbidities such as type 2 diabetes, cardiovascular disease, and mobility impairment. While GLP-1 Receptor Agonists (GLP-1 RAs), a class of drugs that mimic natural hormones to regulate appetite and metabolism, have demonstrated substantial efficacy for weight management in younger populations, there remains a paucity of dedicated research and clinical guidance regarding their specific use, efficacy, and safety profiles in the geriatric population.

Results

Across the eight patients, the GLP-1 RA treatment resulted in a mean weight loss of 11.8% from baseline, ranging from 8.5% to 15.2% over the observation period. Mean BMI decreased by 3.9 kg/m², moving from an average of 34.5 kg/m² to 30.6 kg/m², indicating a significant reduction in obesity severity. > The most significant finding was that 75% of patients achieved at least a 10% total body weight loss, a threshold often associated with clinically meaningful health benefits and reduced risk of comorbidities. Additionally, 62.5% of patients experienced improvements in at least one obesity-related comorbidity, such as a mean 5 mmHg reduction in systolic blood pressure or a 0.8% decrease in HbA1c (a measure of average blood sugar) in diabetic patients. The GLP-1 RAs were generally well-tolerated, with 25% of patients reporting mild gastrointestinal side effects (nausea, constipation) that resolved with dose adjustment or over time, and no serious adverse events were recorded.

Why It Matters

This case series provides crucial preliminary evidence suggesting that GLP-1 RAs can be a safe and effective therapeutic option for weight management in older adults, challenging previous hesitations regarding their use in this demographic. The observed significant weight loss and improvements in comorbidities highlight the potential for these agents to enhance quality of life and reduce the burden of obesity-related diseases in the elderly, offering a new avenue for geriatric care. These findings strongly support the need for larger, controlled clinical trials to further validate the efficacy and long-term safety of GLP-1 RAs in geriatric populations, potentially leading to their broader clinical integration. Future research should focus on optimizing dosing strategies and monitoring for specific geriatric considerations.


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Source: pubmed:41966038 · Ingested 2026-04-12 · Digest: gemini-2.5-flash