PolarX 和 Arctic Front 冷冻球囊用于有症状阵发性 AF 患者 PVI 的比较 (COMPARE-CRYO)
PolarX 和 Arctic Front Cryoballoon 在有症状阵发性心房颤动患者肺静脉隔离中的比较 - 一项多中心非劣效性设计临床试验
肺静脉隔离 (PVI) 是治疗房颤 (AF) 的有效方法。 单发设备越来越多地用于 PVI。 目前,Medtronic Arctic Front 冷冻球囊是最常用的单次注射技术,因此是未来技术的基准。 最近引入了一种新型冷冻气球技术(PolarX,波士顿科学公司)。 然而,PolarX 是否提供与实践标准美敦力 Arctic Front 冷冻气球相似的有效性还有待研究。 鉴于 PolarX 的开发考虑了与 Medtronic Arctic Front 冷冻气球相关的报告限制和潜在故障,它在 AF 消融程序中的使用可能更加有效和安全。
该试验的目的是比较 PolarX 冷冻球囊(波士顿科学公司)和 Arctic Front 冷冻球囊(美敦力)对接受首次 PVI 的症状性阵发性 AF 患者的疗效和安全性。
这是一项由研究者发起的、多中心、随机对照、开放标签试验,采用盲法终点判定。 鉴于美敦力 Arctic Front Cryoballoon 是单次注射 PVI 的实践标准,而 PolarX 是新技术,因此本试验采用非劣效性设计。
关于主要疗效终点的假设是,与 Arctic Front Cryoballoon(美敦力)相比,PolarX Cryoballoon(波士顿科学)显示出较低的疗效,因此在第 91 天和第 365 天之间将观察到更多的房性心律失常首次复发在接受第一次 PVI 的症状性阵发性 AF 患者中。 因此,备选假设假设 PolarX 低温气球不劣于 Arctic Front 低温气球。 需要拒绝零假设才能得出非劣效性结论。
研究概览
地位
条件
研究类型
注册 (实际的)
阶段
- 第四阶段
联系人和位置
学习地点
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Basel、瑞士、4031
- University Hospital Basel
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Bern、瑞士、3010
- Inselspital, Bern University Hospital
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
描述
纳入标准:
- 在过去 24 个月内,12 导联心电图 (ECG) 或动态心电图监测仪(持续≥30 秒)记录到阵发性心房颤动。 根据现行指南,阵发性定义为在 7 天内自发或通过药物或电复律转复为窦性心律的任何心房颤动 (AF)。
- 基于当前 AF 指南的消融候选人
- 在消融前使用华法林(国际标准化比值 [INR] 2-3)或新型口服抗凝剂 (NOAC) 持续抗凝 ≥ 4 周;或消融前 48 小时内排除左心房 (LA) 血栓的经食管超声心动图 (TEE)
- 同意之日年满 18 岁
- 签署的知情同意书(附录知情同意书)
排除标准:
- 既往 LA 消融或 LA 手术
- 由于可逆原因引起的 AF(例如 甲亢、心胸外科)
- 心内血栓
- 预先存在的肺静脉狭窄或肺静脉支架
- 预先存在的偏侧膈肌麻痹
- 抗凝或放射造影剂禁忌症
- 人工心脏瓣膜
- 具有临床意义(中度或重度)的二尖瓣反流或狭窄
- 同意日期前 3 个月内发生过心肌梗死、经皮冠状动脉介入治疗 (PCI)/经皮腔内冠状动脉成形术 (PTCA) 或冠状动脉支架置入术
- 在同意日期或预定的心脏手术/经导管主动脉瓣植入术 (TAVI) 手术之前的三个月间隔内进行过心脏手术
- 显着先天性心脏缺陷(包括房间隔缺损或肺静脉异常但不包括卵圆孔未闭)
- 纽约心脏协会 (NYHA) III 级或 IV 级充血性心力衰竭
- 左心室射血分数 (LVEF) <35%
- 肥厚型心肌病(壁厚>1.5 cm)
- 显着慢性肾病(CKD;估计肾小球滤过率 [eGFR] <30 μMol/L)
- 不受控制的甲亢
- 同意日期前六个月的脑缺血事件(中风或 TIA)
- 持续的全身感染
- 冷球蛋白血症病史
- 怀孕*
- 根据医生的意见,预期寿命少于一 (1) 年
- 在本研究期间,目前正在参与药物、设备或生物材料的任何其他临床试验。
不愿意或不能完全遵守研究程序和后续行动。
- 为排除妊娠,使用血液测试(人绒毛膜促性腺激素 [HCG])。
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
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有源比较器:PVI 使用 Arctic Front Cryoballoon (Medtronic)
使用 Arctic Front Cryoballoon (Medtronic) 进行肺静脉隔离
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随机分配到 Arctic Front 冷冻球囊组的患者将使用 Arctic Front 冷冻球囊 (Medtronic) 进行 PVI。 在手术结束时,植入式心脏监测器(美敦力 Reveal LINQ)将被植入,以持续监测心律失常。
其他名称:
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有源比较器:PVI 使用 PolarX Cryoballoon (Boston Scientific)
使用 PolarX Cryoballoon (Boston Scientific) 进行肺静脉隔离
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随机分配到 PolarX 冷冻球囊组的患者将使用 PolarX 冷冻球囊 (Boston Scientific) 进行 PVI。 在手术结束时,植入式心脏监测器(美敦力 Reveal LINQ)将被植入,以持续监测心律失常。
其他名称:
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Number of Patients With Recurrence of Any Atrial Tachyarrhythmia
大体时间:days 91 to 365 post-ablation
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Number of patients with recurrence of any atrial tachyarrhythmia (atrial fibrillation [AF], atrial flutter [AFL] or atrial tachycardia [AT]) between days 91 and 365 post ablation as detected on continuous implantable cardiac monitor (ICM).
AF, AFL or AT will qualify as a recurrence after ablation if it lasts 120 s or longer on ICM (the minimum programmable episode interval).
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days 91 to 365 post-ablation
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Number of Participants With Complications
大体时间:days 0 to 30 post-ablation
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Composite endpoint composed of:
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days 0 to 30 post-ablation
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Total Procedure Time
大体时间:Day 1
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Total procedure time from femoral vein puncture to sheath removal
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Day 1
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Total Left Atrial (LA) Indwelling Time
大体时间:Day 1
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Total LA indwelling time, from transseptal puncture to removal of LA catheters
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Day 1
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Total Cryoablation Time
大体时间:Day 1
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procedural endpoint
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Day 1
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Total Number of Cryoapplications Per Patient/Per Vein
大体时间:Day 1
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procedural endpoint
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Day 1
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Time to Effect
大体时间:Day 1
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disappearance of PV-Signal; procedural endpoint
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Day 1
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Nadir Temperatures
大体时间:Day 1
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procedural endpoint
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Day 1
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Total Fluoroscopy Time
大体时间:Day 1
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procedural endpoint
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Day 1
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Radiation Dose
大体时间:Day 1
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procedural endpoint
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Day 1
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Contrast Agent Usage
大体时间:Day 1
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unit measure ml; procedural endpoint
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Day 1
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Number of Patients With Veins With PV Signals Visible Before Cryoablation
大体时间:Day 1
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procedural endpoint
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Day 1
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Number of Participants With Phrenic Nerve Palsy
大体时间:Day 1
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procedural endpoint
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Day 1
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Number of Patients With Recurrence of Atrial Tachyarrhythmia
大体时间:between days 1 and 90 after ablation
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Follow up Endpoint
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between days 1 and 90 after ablation
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Overall AF Burden = % Time in AF
大体时间:91-365 days
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Assessed by the ICM Core Lab post implantation
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91-365 days
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Number of Hospital Admissions or Emergency Room Visits Because of Documented Recurrence of Atrial Arrhythmias
大体时间:Day 0 (after ablation) until day 365 post-ablation
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based on telephone follow-up
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Day 0 (after ablation) until day 365 post-ablation
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Number of Electrical Cardioversion Because of Documented Recurrence of Atrial Arrhythmias
大体时间:Day 0 (post-ablation) to day 365 after ablation
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based on telephone follow-up
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Day 0 (post-ablation) to day 365 after ablation
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Number of Repeat Ablation Procedure Because of Documented Recurrence of Atrial Arrhythmias
大体时间:Day 1 - 365 postablation
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based on telephone follow-up
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Day 1 - 365 postablation
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Evolution of Quality of Life (QoL)
大体时间:Change in score from BL to 12 months
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Evolution of Quality of Life (QoL) from BL to 12 months.
Patients rated their health on a scale from 0 to 100, with 100 being the best possible score and 0 the worst possible score.
A positive number in the outcome measure means that BL's health has improved at 12 months.
A negative number in the outcome measure means that BL's health has declined at 12 months.
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Change in score from BL to 12 months
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合作者和调查者
调查人员
- 首席研究员:Tobias Reichlin, MD、Inselspital, Bern University Hospital
出版物和有用的链接
一般刊物
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- Wolf PA, Abbott RD, Kannel WB. Atrial fibrillation as an independent risk factor for stroke: the Framingham Study. Stroke. 1991 Aug;22(8):983-8. doi: 10.1161/01.str.22.8.983.
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- Soliman EZ, Lopez F, O'Neal WT, Chen LY, Bengtson L, Zhang ZM, Loehr L, Cushman M, Alonso A. Atrial Fibrillation and Risk of ST-Segment-Elevation Versus Non-ST-Segment-Elevation Myocardial Infarction: The Atherosclerosis Risk in Communities (ARIC) Study. Circulation. 2015 May 26;131(21):1843-50. doi: 10.1161/CIRCULATIONAHA.114.014145. Epub 2015 Apr 27.
- Packer DL, Kowal RC, Wheelan KR, Irwin JM, Champagne J, Guerra PG, Dubuc M, Reddy V, Nelson L, Holcomb RG, Lehmann JW, Ruskin JN; STOP AF Cryoablation Investigators. Cryoballoon ablation of pulmonary veins for paroxysmal atrial fibrillation: first results of the North American Arctic Front (STOP AF) pivotal trial. J Am Coll Cardiol. 2013 Apr 23;61(16):1713-23. doi: 10.1016/j.jacc.2012.11.064. Epub 2013 Mar 21.
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- Maurhofer J, Kueffer T, Knecht S, Madaffari A, Badertscher P, Seiler J, Krisai P, Jufer C, Asatryan B, Heg D, Servatius H, Tanner H, Kuhne M, Roten L, Sticherling C, Reichlin T. Comparison of the PolarX and the Arctic Front cryoballoon for pulmonary vein isolation in patients with symptomatic paroxysmal atrial fibrillation (COMPARE CRYO) - Study protocol for a randomized controlled trial. Contemp Clin Trials. 2023 Nov;134:107341. doi: 10.1016/j.cct.2023.107341. Epub 2023 Sep 16.
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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