University of Oklahoma Health Sciences Center

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Author/s:

Ghusn, W., De la Rosa, A., Sacoto, D.

Date Added:

September 24, 2022

Journal/Publication:

JAMA Network Open

Publisher:

American Medical Association

Publication Date:

September 19, 2022

Issue:

Volume:

Pages:

1-11

URL:

Weight Loss Outcomes Associated With Semaglutide Treatment for Patients With Overweight or Obesity

Type:

Clinical Research Results

Format:

Article

DOI (1):

10.1001/jamanetworkopen.2022.31982

PMID (1):

36121652

Keywords

Cohort Studies

overweight

Retrospective Studies

middle aged

weight loss

MeSH

Glucagon-Like Peptides

diabetes mellitus

Type 2* / drug therapy

Hypoglycemic Agents / therapeutic use

Obesity / drug therapy

Overweight* / chemically induced

RPR Commentary

A non-randomized cohort study corroborating approximately 10% reduction in weight with weekly SC Semaglutide. I’m waiting to see if the effect lasts for more than 2 years and how many people are willing and able to continue the drug long term. James W. Mold, MD, MPH

Abstract

Importance No retrospective cohort study has assessed the effectiveness of semaglutide at doses used in randomized clinical trials to treat obesity (ie, 1.7 and 2.4 mg).

Objective To study weight loss outcomes associated with semaglutide treatment at doses used in randomized clinical trials for patients with overweight or obesity.

Design, Setting, and Participants This cohort study, conducted at a referral center for weight management, retrospectively collected data on the use of semaglutide for adults with overweight or obesity between January 1, 2021, and March 15, 2022, with a follow-up of up to 6 months. A total of 408 patients with a body mass index (BMI) of 27 or more were prescribed weekly semaglutide subcutaneous injections for 3 months or more. Patients with a history of bariatric procedures, taking other antiobesity medications, and with an active malignant neoplasm were excluded.

Exposures Weekly 1.7-mg or 2.4-mg semaglutide subcutaneous injections for 3 to 6 months.

Main Outcomes and Measures The primary end point was the percentage of weight loss. Secondary end points were the proportion of patients achieving weight loss of 5% or more, 10% or more, 15% or more, and 20% or more after 3 and 6 months and the percentage of weight loss for patients with or without type 2 diabetes after 3 and 6 months.

Results The study included 175 patients (132 women [75.4%]; mean [SD] age, 49.3 [12.5] years; mean [SD] BMI, 41.3 [9.1]) in the analysis at 3 months and 102 patients at 6 months. The mean (SD) weight loss after 3 months was 6.7 (4.4) kg, equivalent to a mean (SD) weight loss of 5.9% (3.7%) (P < .001), and the mean (SD) weight loss after 6 months was 12.3 (6.6) kg, equivalent to a mean (SD) weight loss of 10.9% (5.8%) (P < .001 from baseline). Of the 102 patients who were followed up at 6 months, 89 (87.3%) achieved weight loss of 5% or more, 56 (54.9%) achieved weight loss of 10% or more, 24 (23.5%) achieved weight loss of 15% or more, and 8 (7.8%) achieved weight loss of 20% or more. Patients with type 2 diabetes had a lower mean (SD) percentage weight loss at 3 and 6 months compared with those without type 2 diabetes: 3.9% (3.1%) vs 6.3% (3.7%) at 3 months (P = .001) and 7.2% (6.3%) vs 11.8% (5.3%) at 6 months (P = .005).

Conclusions and Relevance The results of this cohort study suggest that weekly 1.7-mg and 2.4-mg doses of semaglutide were associated with weight loss similar to that seen in randomized clinical trials. Studies with longer periods of follow-up are needed to evaluate prolonged weight loss outcomes.

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