Evaluation of the Thoraflex™ Hybrid Device for Use in the Repair or Replacement of the Ascending Aorta, Aortic Arch and Descending Aorta in an Open Surgical Procedure.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 84
- 试验地点
- 21
- 主要终点
- Proportion of patients who are free from composite Major Adverse Events (Permanent stroke, Permanent paraplegia/paraparesis, Unanticipated aortic-related re-operation, All-cause mortality) at 1 year post-procedure
研究概览
简要总结
The study will assess the effectiveness, safety and clinical outcomes of the Thoraflex™ Hybrid Device in the treatment of aortic disease affecting the aortic arch and the descending thoracic aorta, with or without involvement of ascending aorta.
The study will also assess safety and early clinical outcomes in patients who receive an extension procedure within 1 year of Thoraflex™ Hybrid Device implantation.
Lastly the study will assess the safety and clinical outcomes of patients who receive a Thoraflex™ Hybrid Device for treatment of a ruptured aorta.
Patients will be followed for 3 years.
The Primary Endpoint will be freedom from defined Major Adverse Events (MAE) occurring ≤ 1 year post-procedure.
详细描述
Vascutek Ltd has developed the Thoraflex™ Hybrid Device (Plexus™ 4 and Ante-Flo™) for the open surgical repair or replacement of damaged or diseased vessels of the aortic arch and descending aorta, with or without involvement of the ascending aorta, in cases of aneurysm and/or dissection. The Thoraflex™ Hybrid Device may be considered a development of the Elephant Trunk (ET) grafts with the addition of a stented distal section. In some cases this will allow for a single stage procedure to be carried out, dependent on the length of affected vessel. As the device is fully sealed and has a collar to aid anastomosis, it removes the requirement for in situ sealing and the suturing together of two devices, thereby reducing cardiopulmonary bypass (CPB) time and overall procedure time.
By reducing the procedure time and negating the need for as many subsequent procedures, this method could greatly improve the success of this procedure and may improve patient outcomes.
The ability to treat complex anatomies in addition to reducing procedure and CPB time, justify the investigation of the Thoraflex™ Hybrid Device. Safety and effectiveness data for subjects treated with the Thoraflex™ Hybrid Device will be compared to historical data from subjects treated using standard ET surgical repair.
It is anticipated that up to 83 patients will be recruited over a 14 month period (approximately). Patients will be evaluated at the following time points: Pre-procedure, Implant, Discharge/30 days, 3 months, 12 months, 24 months and 36 months. An additional visit may be performed for patients who undergo an extension procedure within 1 year of Thoraflex™ Hybrid Device implantation.
65 patients will be recruited to the primary study group (maximum 19 per site). An additional group of patients with a ruptured aorta may also be recruited (up to approximately 18 patients across all sites).
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Main Study Group (All patients except Aortic Rupture Patients)
- •Patient is aged 18 years or over on date of consent
- •Patient is willing and able to comply with all study procedures and study visits
- •Patient or their legally authorized representative has given written informed consent to participate in study
- •Patient satisfies the inclusion criteria for one of the following categories:
- •A - Patient has acute dissection of the aorta or B - Patient has chronic dissection of the aorta or C - Patient has an aortic aneurysm (including connective tissue disorders)
- •A. - Patients with acute dissection of the aorta:
- •Patient has acute aortic dissection and requires repair or replacement of damaged or diseased vessels of the aortic arch (with or without involvement of the ascending aorta), and the descending aorta requires replacement, or, in the opinion of the investigator, the patient would derive clinical benefit from prophylactic treatment of the descending aorta.
- •B. - Patients with chronic dissection of the aorta:
- •Patient requires repair or replacement of damaged or diseased vessels of the aortic arch and descending aorta with or without involvement of the ascending aorta due to chronic dissection.
- •And patient satisfies one or more of the following criteria:
- •Patient has aortic sinus, or ascending aorta, or aortic arch, or descending aorta diameter ≥5.5cm (including if asymptomatic) or
- •Patient has aorta diameter <5.5cm and growth rate ≥0.5cm/year (including if asymptomatic) or
- •Patient has ascending aorta diameter ≥4.5cm and requires valve repair or replacement
- •C. - Patients with an aortic aneurysm (including connective tissue disorders):
- •Patient requires repair or replacement of damaged or diseased vessels of the aortic arch and descending aorta with or without involvement of the ascending aorta
- •And patient satisfies one or more of the following criteria:
- •Patient has aortic sinus, or ascending aorta, or aortic arch, or descending aorta diameter ≥5.5cm (including if asymptomatic) or
- •Patient has aorta diameter <5.5cm and growth rate ≥0.5cm/year(including if asymptomatic) or
- •Patient has ascending aorta diameter ≥4.5cm and requires valve repair or replacement or
- •Patient has Marfan syndrome or other genetically mediated disorders with aortic sinus, or ascending aorta, or arch diameter ≥4.5cm, or, the ratio of the maximal ascending or aortic root area (Π r2) in cm2 divided by the patient's height in meters exceeds 10
- •Inclusion criteria for Patients with Ruptured Aorta only:
- •Patient is aged 18 years or over, on date of consent
- •Patient or their legally authorized representative is able and willing to give consent to the patient's enrolment in the study
- •Patient has either a ruptured thoracic aorta, or, in the experience of the treating surgeon, is at high risk of imminent rupture of the thoracic aorta
排除标准
- •Main Study Group (All Patients Except Patients with Ruptured Aorta)
- •Patient is unfit for open surgical repair involving circulatory arrest
- •Patient has known sensitivity to polyester, nitinol or materials of bovine origin
- •Patient has a ruptured aorta
- •Patient has active endocarditis or an active infective disorder of the aorta
- •Patient has an active systemic infection that, in the opinion of the investigator, would compromise the outcome of the surgical procedure
- •Patient is enrolled in another active study and has received an investigational product (device, pharmaceutical or biologic) within 6 months prior to the date of the implant or has not reached the primary endpoint of the study
- •Patient is female and is pregnant, or planning to become pregnant during the course of the study. Females of childbearing potential must use acceptable methods of contraception.
- •Patient has an uncorrectable bleeding anomaly
- •Patient has renal failure (defined as dialysis dependent or serum creatinine ≥2.5mg/dL)
- •Patient has known sensitivity to radiopaque contrast agents that cannot be adequately pre-treated
- •Patient has a co-morbidity causing expected survival to be less than 1 year
- •Patient has any other medical, social or psychological problems that in the opinion of the investigator preclude them from receiving this treatment and the procedures and evaluations pre and post procedure
- •Exclusion criteria for Patients with Ruptured Aorta only:
- •Patient has chronic dissection which, in the opinion of the investigator, can be treated electively
- •Patient has aneurysmal disease which, in the opinion of the investigator, can be treated electively
结局指标
主要结局
Proportion of patients who are free from composite Major Adverse Events (Permanent stroke, Permanent paraplegia/paraparesis, Unanticipated aortic-related re-operation, All-cause mortality) at 1 year post-procedure
时间窗: ≤ 1 year post-procedure
Freedom from the following composite Major Adverse Events (MAE) occurring ≤ 1 year post-procedure: * Permanent stroke * Permanent paraplegia/paraparesis * Unanticipated aortic-related re-operation (excluding re-operation for bleeding) * All-cause mortality All relevant events will be adjudicated by CEC. Data will be analysed and presented in a binary format (i.e. Freedom from the listed AE's - Yes/No).
次要结局
- Procedural Success(At discharge/30 days)
- Device Technical Success(At exit from OR (i.e. completion of surgical procedure))
- Treatment Success(At discharge/30 days and all post-procedural intervals)
- Individual Patient Success(At 1 year)