GVM Care and Research, Maria Cecilia Hospital, Cotignola, Italy.
Department of Internal Medicine, Division of Angiology, Medical University, Graz, Austria.
JACC Cardiovasc Interv. 2018 May 28;11(10):945-953. doi: 10.1016/j.jcin.2018.02.019.
The IN.PACT Global Study is the largest prospective, multicenter, independently adjudicated trial to evaluate a paclitaxel drug-coated balloon in patients with lifestyle-limiting claudication and/or ischemic rest pain due to atherosclerotic disease of the femoropopliteal artery and includes complex lesions beyond what are typically included in randomized controlled trials.
Randomized controlled trials have demonstrated the safety and efficacy of drug-coated balloons for the treatment of Trans-Atlantic Inter-Society Consensus Document II A and B lesions, but there is a need for large-scale prospective studies to evaluate a broader range of lesions.
The IN.PACT Global Study enrolled 1,535 subjects, and 1,406 (1,773 lesions) were included in the pre-defined clinical cohort analysis. Freedom from clinically driven target lesion revascularization was evaluated at 24 months. The safety composite endpoint was freedom from device- and procedure-related death through 30 days and freedom from target limb major amputation and clinically driven target vessel revascularization within 24 months.
Mean lesion length was 12.1 cm, 35.5% were total occlusions, and 18.0% had in-stent restenosis. Freedom from clinically driven target lesion revascularization at 24 months was 83.3%, the composite safety endpoint was met in 81.7%, the 2-year all-cause mortality rate was 7.0%, and the major target limb amputation rate was 0.7%. Increased lesion length and the presence of de novo in-stent restenosis or coronary artery disease were associated with increased risk for clinically driven target lesion revascularization by 24 months.
This real-world study of femoropopliteal artery disease treatment with drug-coated balloons confirmed positive findings reported from more strictly designed randomized controlled trials and showed that outcomes are durable in this population up to 2 years after treatment. (IN.PACT Global Clinical Study; NCT01609296).
IN.PACT 全球研究是迄今为止规模最大的前瞻性、多中心、独立评估试验,旨在评估紫杉醇药物涂层球囊在因股腘动脉粥样硬化疾病而出现生活受限性跛行和/或缺血性静息痛的患者中的疗效,其中包括经随机对照试验通常不包含的复杂病变。
随机对照试验已经证实药物涂层球囊治疗跨大西洋介入学会共识文件 II A 和 B 病变的安全性和有效性,但需要大规模的前瞻性研究来评估更广泛的病变。
IN.PACT 全球研究共纳入 1535 例患者,其中 1406 例(1773 处病变)被纳入预先设定的临床队列分析。24 个月时评估免于临床驱动的靶病变血运重建。安全性复合终点是 30 天内无器械和手术相关死亡以及 24 个月内免于靶肢体主要截肢和临床驱动的靶血管血运重建。
平均病变长度为 12.1cm,35.5%为完全闭塞,18.0%为支架内再狭窄。24 个月时免于临床驱动的靶病变血运重建率为 83.3%,复合安全性终点的达标率为 81.7%,2 年全因死亡率为 7.0%,主要靶肢体截肢率为 0.7%。病变长度增加以及新发支架内再狭窄或冠状动脉疾病的存在与 24 个月时临床驱动的靶病变血运重建风险增加相关。
本药物涂层球囊治疗股腘动脉疾病的真实世界研究证实了更严格设计的随机对照试验报告的阳性结果,并表明该人群在治疗后 2 年内的结果是持久的。(IN.PACT 全球临床研究;NCT01609296)。