当前位置: X-MOL 学术JAMA › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of Granulocyte-Macrophage Colony-Stimulating Factor With or Without Supervised Exercise on Walking Performance in Patients With Peripheral Artery Disease
JAMA ( IF 120.7 ) Pub Date : 2017-12-05 , DOI: 10.1001/jama.2017.17437
Mary M. McDermott 1 , Luigi Ferrucci 2 , Lu Tian 3 , Jack M. Guralnik 4 , Donald Lloyd-Jones 1 , Melina R. Kibbe 5 , Tamar S. Polonsky 6 , Kathryn Domanchuk 7 , James H. Stein 8 , Lihui Zhao 9 , Doris Taylor 10 , Christopher Skelly 11 , William Pearce 12 , Harris Perlman 7 , Walter McCarthy 13 , Lingyu Li 7 , Ying Gao 7 , Robert Sufit 13 , Christina L. Bloomfield 7 , Michael H. Criqui 14
Affiliation  

Importance Benefits of granulocyte-macrophage colony-stimulating factor (GM-CSF) for improving walking ability in people with lower extremity peripheral artery disease (PAD) are unclear. Walking exercise may augment the effects of GM-CSF in PAD, since exercise-induced ischemia enhances progenitor cell release and may promote progenitor cell homing to ischemic calf muscle. Objectives To determine whether GM-CSF combined with supervised treadmill exercise improves 6-minute walk distance, compared with exercise alone and compared with GM-CSF alone; to determine whether GM-CSF alone improves 6-minute walk more than placebo and whether exercise improves 6-minute walk more than an attention control intervention. Design, Setting, and Participants Randomized clinical trial with 2 × 2 factorial design. Participants were identified from the Chicago metropolitan area and randomized between January 6, 2012, and December 22, 2016, to 1 of 4 groups: supervised exercise + GM-CSF (exercise + GM-CSF) (n = 53), supervised exercise + placebo (exercise alone) (n = 53), attention control + GM-CSF (GM-CSF alone) (n = 53), attention control + placebo (n = 51). The final follow-up visit was on August 15, 2017. Interventions Supervised exercise consisted of treadmill exercise 3 times weekly for 6 months. The attention control consisted of weekly educational lectures by clinicians for 6 months. GM-CSF (250 &mgr;g/m2/d) or placebo were administered subcutaneously (double-blinded) 3 times/wk for the first 2 weeks of the intervention. Main Outcomes and Measures The primary outcome was change in 6-minute walk distance at 12-week follow-up (minimum clinically important difference, 20 m). P values were adjusted based on the Hochberg step-up method. Results Of 827 persons evaluated, 210 participants with PAD were randomized (mean age, 67.0 [SD, 8.6] years; 141 [67%] black, 82 [39%] women). One hundred ninety-five (93%) completed 12-week follow-up. At 12-week follow-up, exercise + GM-CSF did not significantly improve 6-minute walk distance more than exercise alone (mean difference, −6.3 m [95% CI, −30.2 to +17.6]; P = .61) or more than GM-CSF alone (mean difference, +28.7 m [95% CI, +5.1 to +52.3]; Hochberg-adjusted P = .052). GM-CSF alone did not improve 6-minute walk more than attention control + placebo (mean difference, −1.4 m [95% CI, −25.2 to +22.4]; P = .91). Exercise alone improved 6-minute walk compared with attention control + placebo (mean difference, +33.6 m [95% CI, +9.4 to +57.7]; Hochberg-adjusted P = .02). Conclusions and Relevance Among patients with PAD, supervised treadmill exercise significantly improved 6-minute walk distance compared with attention control + placebo, whereas GM-CSF did not significantly improve walking performance, either when used alone or when combined with supervised treadmill exercise. These results confirm the benefits of exercise but do not support using GM-CSF to treat walking impairment in patients with PAD. Trial Registration clinicaltrials.gov Identifier: NCT01408901

中文翻译:

粒细胞-巨噬细胞集落刺激因子有无监督运动对外周动脉疾病患者步行能力的影响

粒细胞-巨噬细胞集落刺激因子 (GM-CSF) 对改善下肢外周动脉疾病 (PAD) 患者步行能力的益处尚不清楚。步行运动可能会增强 GM-CSF 在 PAD 中的作用,因为运动引起的缺血会增强祖细胞的释放,并可能促进祖细胞归巢至缺血的小腿肌肉。目的 确定 GM-CSF 结合有监督的跑步机运动与单独运动和单独使用 GM-CSF 相比是否能提高 6 分钟步行距离;确定单独的 GM-CSF 是否比安慰剂更能改善 6 分钟步行,以及运动是否比注意力控制干预更能改善 6 分钟步行。设计、设置和参与者 具有 2 × 2 因子设计的随机临床试验。参与者是从芝加哥大都市区确定的,并在 2012 年 1 月 6 日至 2016 年 12 月 22 日之间随机分配到 4 组中的 1 组:监督锻炼 + GM-CSF(锻炼 + GM-CSF)(n = 53)、监督锻炼 +安慰剂(单独运动)(n = 53),注意力控制 + GM-CSF(单独 GM-CSF)(n = 53),注意力控制 + 安慰剂(n = 51)。最后一次随访时间为 2017 年 8 月 15 日。 干预 监督锻炼包括每周 3 次的跑步机锻炼,持续 6 个月。注意力控制包括临床医生每周的教育讲座,为期 6 个月。在干预的前 2 周内,每周 3 次皮下注射(双盲)GM-CSF(250 μg/m2/d)或安慰剂。主要结果和措施 主要结果是 12 周随访时 6 分钟步行距离的变化(最小临床重要差异,20 m)。P 值根据 Hochberg step-up 方法进行调整。结果 在评估的 827 人中,210 名 PAD 参与者被随机分组​​(平均年龄,67.0 [SD,8.6] 岁;141 [67%] 名黑人,82 [39%] 名女性)。195 人 (93%) 完成了 12 周的随访。在 12 周的随访中,运动 + GM-CSF 并没有比单独运动更显着改善 6 分钟步行距离(平均差异,-6.3 m [95% CI,-30.2 至 +17.6];P = .61)或超过单独的 GM-CSF(平均差异,+28.7 m [95% CI,+5.1 至 +52.3];Hochberg 调整的 P = .052)。与注意力控制 + 安慰剂相比,单独使用 GM-CSF 并没有改善 6 分钟步行(平均差异,-1.4 m [95% CI,-25.2 至 +22.4];P = .91)。与注意力控制 + 安慰剂相比,单独运动改善了 6 分钟步行(平均差异,+33.6 m [95% CI,+9.4 至 +57.7];Hochberg 调整的 P = .02)。结论和相关性 在 PAD 患者中,与注意力控制 + 安慰剂相比,有监督的跑步机运动显着改善了 6 分钟步行距离,而 GM-CSF 没有显着改善步行性能,无论是单独使用还是与有监督的跑步机运动结合使用。这些结果证实了运动的好处,但不支持使用 GM-CSF 治疗 PAD 患者的步行障碍。试验注册clinicaltrials.gov 标识符:NCT01408901 与注意力控制 + 安慰剂相比,有监督的跑步机运动显着提高了 6 分钟步行距离,而 GM-CSF 没有显着改善步行性能,无论是单独使用还是与有监督的跑步机运动结合使用。这些结果证实了运动的好处,但不支持使用 GM-CSF 治疗 PAD 患者的步行障碍。试验注册clinicaltrials.gov 标识符:NCT01408901 与注意力控制 + 安慰剂相比,有监督的跑步机运动显着提高了 6 分钟步行距离,而 GM-CSF 没有显着改善步行性能,无论是单独使用还是与有监督的跑步机运动结合使用。这些结果证实了运动的好处,但不支持使用 GM-CSF 治疗 PAD 患者的步行障碍。试验注册clinicaltrials.gov 标识符:NCT01408901
更新日期:2017-12-05
down
wechat
bug