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Standard Open Surgery Versus Endovascular Repair of Abdominal Aortic Aneurysm (AAA) (OVER)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00094575
First Posted: October 21, 2004
Last Update Posted: March 7, 2016
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
VA Office of Research and Development
Results First Submitted: September 16, 2013  
Study Type: Interventional
Study Design: Allocation: Randomized;   Intervention Model: Parallel Assignment;   Masking: None (Open Label);   Primary Purpose: Treatment
Condition: Aortic Aneurysm
Interventions: Procedure: Endovascular Repair
Procedure: Standard Open Repair

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
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Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
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Reporting Groups
  Description
Endovascular Repair Endovascular Repair
Open Repair Standard Open Repair

Participant Flow:   Overall Study
    Endovascular Repair   Open Repair
STARTED   444   437 
COMPLETED   298   291 
NOT COMPLETED   146   146 
Death                146                146 



  Baseline Characteristics
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Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
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Reporting Groups
  Description
Endovascular Repair Endovascular Repair
Open Repair Standard Open Repair
Total Total of all reporting groups

Baseline Measures
   Endovascular Repair   Open Repair   Total 
Overall Participants Analyzed 
[Units: Participants]
 444   437   881 
Age 
[Units: Years]
Mean (Standard Deviation)
 69.6  (7.8)   70.5  (7.8)   70.1  (7.8) 
Gender 
[Units: Participants]
     
Female   3   2   5 
Male   441   435   876 
Weight in kilograms 
[Units: Kilogram]
Mean (Standard Deviation)
 89.9  (16.8)   89.7  (17.8)   89.8  (17.3) 
Body Mass Index [BMI] 
[Units: Kg/m^2]
Mean (Standard Deviation)
 28.6  (5.2)   28.7  (5.6)   28.6  (5.4) 
Smoking Status 
[Units: Participants]
     
Ever Smoked   428   413   841 
Never Smoked   16   24   40 
Currently Smoking 
[Units: Participants]
     
Yes   170   193   363 
No   274   244   518 
Surgical Risk [RAND Score] 
[Units: Participants]
     
Low   240   228   468 
Intermediate   169   175   344 
High   31   29   60 
Not Assessed   4   5   9 
Maximum Aneurysm Diameter 
[Units: Centimeter]
Mean (Standard Deviation)
 5.7  (.8)   5.7  (1.0)   5.7  (0.9) 


  Outcome Measures
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1.  Primary:   All-cause Mortality   [ Time Frame: Participants were followed for the duration of the study, up to 9 years ]

2.  Secondary:   Secondary Therapeutic Procedures   [ Time Frame: Participants were followed for the duration of the study, up to 9 years ]

3.  Secondary:   SF-36 Mental Component Score (MCS)   [ Time Frame: Outcome was assessed at 6 months and then yearly, up to 9 years ]

4.  Secondary:   SF-36 Physical Component Score (PCS)   [ Time Frame: Outcome was assessed at 6 months and yearly thereafter, up to 9 years ]

5.  Secondary:   SF-36 Physical Component Deaths Included Score (PCTD)   [ Time Frame: Outcome was assessed at 6 months and yearly thereafter, up to 9 years ]

6.  Secondary:   European Quality of Life-5 Dimension (EQ-5D) Index Score   [ Time Frame: Outcome was assessed at 6 months and yearly thereafter, up to 9 years ]

7.  Secondary:   European Quality of Life-5 Dimension (EQ-5D) Visual Analog Scale   [ Time Frame: Outcome was assessed at 6 months and yearly thereafter, up to 9 years ]

8.  Secondary:   International Index of Erectile Function (IIEF-5)   [ Time Frame: Outcome was assessed at 6 months and yearly thereafter, up to 9 years ]


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
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Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
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  More Information
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Certain Agreements:  
Principal Investigators are NOT employed by the organization sponsoring the study.
There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.


Results Point of Contact:  
Name/Title: Dr. Frank A. Lederle
Organization: VAMC Minneapolis, MN
phone: 612-725-2158
e-mail: Frank.Lederle@va.gov


Publications of Results:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Responsible Party: VA Office of Research and Development
ClinicalTrials.gov Identifier: NCT00094575     History of Changes
Other Study ID Numbers: 498
First Submitted: October 20, 2004
First Posted: October 21, 2004
Results First Submitted: September 16, 2013
Results First Posted: December 31, 2013
Last Update Posted: March 7, 2016