Healthy Weight Loss Maintenance with Exercise, Liraglutide, or Both Combined
N Engl J Med. 2021 May 6;384(18):1719-1730. doi: 10.1056/NEJMoa2028198.
https://pubmed.ncbi.nlm.nih.gov/33951361/
僕も痩せたいです。。
Background: Weight regain after weight loss is a major problem in the treatment of persons with obesity.
Methods: In a randomized, head-to-head, placebo-controlled trial, we enrolled adults with obesity (body-mass index [the weight in kilograms divided by the square of the height in meters], 32 to 43) who did not have diabetes. After an 8-week low-calorie diet, participants were randomly assigned for 1 year to one of four strategies: a moderate-to-vigorous-intensity exercise program plus placebo (exercise group); treatment with liraglutide (3.0 mg per day) plus usual activity (liraglutide group); exercise program plus liraglutide therapy (combination group); or placebo plus usual activity (placebo group). End points with prespecified hypotheses were the change in body weight (primary end point) and the change in body-fat percentage (secondary end point) from randomization to the end of the treatment period in the intention-to-treat population. Prespecified metabolic health-related end points and safety were also assessed.
Results: After the 8-week low-calorie diet, 195 participants had a mean decrease in body weight of 13.1 kg. At 1 year, all the active-treatment strategies led to greater weight loss than placebo: difference in the exercise group, -4.1 kg (95% confidence interval [CI], -7.8 to -0.4; P = 0.03); in the liraglutide group, -6.8 kg (95% CI, -10.4 to -3.1; P<0.001); and in the combination group, -9.5 kg (95% CI, -13.1 to -5.9; P<0.001). The combination strategy led to greater weight loss than exercise (difference, -5.4 kg; 95% CI, -9.0 to -1.7; P = 0.004) but not liraglutide (-2.7 kg; 95% CI, -6.3 to 0.8; P = 0.13). The combination strategy decreased body-fat percentage by 3.9 percentage points, which was approximately twice the decrease in the exercise group (-1.7 percentage points; 95% CI, -3.2 to -0.2; P = 0.02) and the liraglutide group (-1.9 percentage points; 95% CI, -3.3 to -0.5; P = 0.009). Only the combination strategy was associated with improvements in the glycated hemoglobin level, insulin sensitivity, and cardiorespiratory fitness. Increased heart rate and cholelithiasis were observed more often in the liraglutide group than in the combination group.
Conclusions: A strategy combining exercise and liraglutide therapy improved healthy weight loss maintenance more than either treatment alone. (Funded by the Novo Nordisk Foundation and others; EudraCT number, 2015-005585-32; ClinicalTrials.gov number, NCT04122716.).
背景:肥満者の治療において,減量後のリバウンドは大きな問題である.
方法:無作為化直接比較プラセボ対照試験で,糖尿病ではない肥満成人(体格指数 [体重 {kg}/身長 {m}2] 32~43)を登録した.低カロリー食を 8 週間摂取した後,参加者を 1 年間,次の 4 つの戦略のいずれかに無作為に割り付けた:中・高強度の運動プログラム+プラセボ(運動群),リラグルチド投与(3.0 mg/日)+通常の活動(リラグルチド群),運動プログラム+リラグルチド投与(併用群),プラセボ+通常の活動(プラセボ群).事前に設定した仮説に基づくエンドポイントは,intention-to-treat 集団における無作為化から治療期間終了までの体重の変化量(主要エンドポイント)と体脂肪率の変化量(副次的エンドポイント)とした.事前に設定した代謝に関する健康関連エンドポイントと,安全性についても評価した.
結果:低カロリー食を 8 週間摂取した後,195 例で体重が平均13.1 kg 減少した.1 年の時点で,実治療戦略のすべての群で体重減少量がプラセボ群を上回り,プラセボ群との差は,運動群 -4.1 kg(95%信頼区間 [CI] -7.8~-0.4,P=0.03),リラグルチド群 -6.8 kg(95% CI -10.4~-3.1,P<0.001),併用群 -9.5 kg(95% CI -13.1~-5.9,P<0.001)であった.併用群では,運動群と比較して大幅な体重減少が得られたが(差 -5.4 kg,95% CI -9.0~-1.7,P=0.004),リラグルチド群との比較では差は大きくなかった(-2.7 kg,95% CI -6.3~0.8,P=0.13).併用群では体脂肪率が 3.9 パーセントポイント低下し,運動群(-1.7 パーセントポイント,95% CI -3.2~-0.2,P=0.02)およびリラグルチド群(-1.9 パーセントポイント,95% CI -3.3~-0.5,P=0.009)の約 2 倍低下した.併用戦略にのみ,糖化ヘモグロビン値,インスリン感受性,心肺体力の改善が認められた.リラグルチド群では,心拍数上昇と胆石症が併用群よりも多くみられた.
結論:運動とリラグルチド療法を併用する戦略では,いずれか一方のみと比較して,健康的な減量維持が得られた.(ノボ ノルディスク財団ほかから研究助成を受けた.EudraCT 登録番号 2015-005585-32,ClinicalTrials.gov 登録番号 NCT04122716)
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