The Boston Scientific ENOVUS Trial

This study has been withdrawn prior to enrollment.
(Sponsor cancelled the product development program, and never conducted the study.)
Sponsor:
Information provided by:
Boston Scientific Corporation
ClinicalTrials.gov Identifier:
NCT00246038
First received: October 27, 2005
Last updated: June 7, 2011
Last verified: June 2011
  Purpose

A prospective, actively controlled, consecutively enrolling, non-randomized multi center clinical evaluation of the safety and efficacy of the Boston Scientific ENOVUS AAA Endograft when used in the treatment of patients with AAA (Treatment Group) as compared to patients treated with conventional open surgery (Control Group).


Condition Intervention Phase
Abdominal Aortic Aneurysm
Device: Boston Scientific ENOVUS AAA Endograft
Phase 2

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase II Evaluation of the Safety and Efficacy of the Boston Scientific ENOVUS AAA Endograft in the Treatment of Abdominal Aortic Aneurysms

Resource links provided by NLM:


Further study details as provided by Boston Scientific Corporation:

Primary Outcome Measures:
  • Safety will compare the major morbidity rate in Treatment Group against rate in Control Group within 30 days of the initial procedure.
  • Efficacy will evaluate patients (Treatment Group) free from AAA rupture and surgical conversion within 1 year of the initial procedure.

Secondary Outcome Measures:
  • Safety: AAA related mortality at 30 days & 1 year, Treatment to Control Arm.
  • Efficacy: Technical success, AAA enlargement, migration, endoleak, device integrity, in Treatment Arm.
  • Clinical Utility: blood loss, procedure/ICU/ anesthesia/hospitalization duration, Treatment to Control Arm.

Estimated Enrollment: 307
Detailed Description:

The primary objectives of this study are to determine whether the Boston Scientific ENOVUS AAA Endograft is a safe and effective method of treating AAA's in those patients considered to be suitable candidates for open surgical repair. The safety of the Boston Scientific ENOVUS AAA Endograft will be determined by comparing the rate of major morbidity in the Treatment Group against the rate of major morbidity in the Control Group within 30 days of the initial procedure. The efficacy of the Boston Scientific ENOVUS AAA Endograft will be determined by evaluating the proportion of patients in the Treatment Group that are free from AAA rupture and conversion to open surgical repair within 1 year of the initial procedure.

The secondary safety endpoints will be compared between the Treatment and Control Groups:Mortality rates at 30 days and 1 year, AAA related mortality at 30 days and 1 year. The secondary efficacy endpoints will be evaluated in the Treatment Group only and include: Technical success, enlargement of AAA, migration, significant endoleak, and loss of device integrity. Secondary Clinical Utility endpoints will be compared between the Treatment and Control groups and will include: blood loss, duration of procedure, ICU stay, length of hospital stay, and duration of anesthesia.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • All patients must meet all of the following inclusion criteria to be eligible for enrollment into this study:

    1. Patient is > 18 years of age
    2. Females of childbearing potential have a negative pregnancy test at the time of treatment
    3. Patient has signed an Institutional Review Board (IRB) approved Informed Consent Form
    4. Patient is considered by the treating physician to be a candidate (i.e., categories I, II, or III) for elective open surgical repair of the AAA per American Society of Anesthesiology (ASA) refer to Appendix II. ASA grade IV patients may be enrolled provided their life expectancy is greater than 1 year.
    5. Patient has an infrarenal abdominal aortic aneurysm that meets at least one of the following:•Abdominal aortic aneurysm >4.5 cm in diameter

      • Aneurysm has increased in size by 0.5 cm in last 6 months.
      • Maximum diameter of aneurysm exceeds one and one-half times the transverse dimension of an adjacent normal aortic segment
    6. Patient must be willing to comply with all required follow-up exams (open surgical control patients are followed through one year, Treatment Group patients are followed through five years in the study with lifelong follow up by physician thereafter).

Exclusion Criteria:

  • Patients that meet ANY of the following are not eligible for enrollment into the study:

    1. Aneurysm dissection
    2. Acutely ruptured aneurysm
    3. Acute vascular injury
    4. Need for emergent surgery
    5. Patient has a known thoracic aortic aneurysm or dissection.
    6. Patient has unstable angina (defined as angina characterized by progressive increase in anginal symptoms, new onset at rest or nocturnal angina, or onset of prolonged angina)
    7. Patient has history of connective tissue disease (e.g., Marfan's or Ehler's-Danlos syndrome).
    8. Patient has history of bleeding disorders or refuses blood transfusions.
    9. Patient has baseline serum creatinine level >2.0 mg/dl
    10. Patient has a known hypersensitivity or contraindication to anticoagulation that is not amenable to pre-treatment.
    11. Patient has a mycotic aneurysm or has an active systemic infection
    12. Patient is morbidly obese or has other clinical conditions that severely inhibit X-ray visualization of the aorta
    13. Patient has a limited life expectancy of less than 1 year
    14. Patient is currently participating in another investigational device or drug clinical trial
    15. Patient has other medical, social or psychological conditions that, in the opinion of the investigator, preclude them from receiving this treatment, pre-treatment, and post-treatment procedures and evaluations.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00246038

Sponsors and Collaborators
Boston Scientific Corporation
Investigators
Principal Investigator: Rodney A. White, MD; Chief, Vascular Surgery University of California, Los Angeles
Principal Investigator: W. Anthony Lee, MD; Assistant Professor of Surgery University of Florida
  More Information

No publications provided

Responsible Party: Pamela Grady, PhD, Director, Clinical Programs, Boston Scientific Corporation
ClinicalTrials.gov Identifier: NCT00246038     History of Changes
Other Study ID Numbers: 810-0001
Study First Received: October 27, 2005
Last Updated: June 7, 2011
Health Authority: United States: Food and Drug Administration

Keywords provided by Boston Scientific Corporation:
Abdominal Aortic Aneurysm
Aortic Aneurysm
AAA
Endovascular
Stent Graft
Endograft
Vascular Prostheses

Additional relevant MeSH terms:
Aneurysm
Aortic Aneurysm
Aortic Aneurysm, Abdominal
Vascular Diseases
Cardiovascular Diseases
Aortic Diseases

ClinicalTrials.gov processed this record on July 20, 2014