SIMPADICO - Study of Immune Modulation Therapy in Peripheral Arterial Disease and Intermittent Claudication Outcomes
The purpose of this study is to assess the effects of the Celacade™ system in patients with intermittent claudication.
Peripheral Arterial Disease
Arterial Occlusive Diseases
Device: Celacade™ system
|Study Design:||Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Primary Purpose: Treatment
|Official Title:||Multi-Center, Randomized, Double-Blind, Placebo-Controlled Study of Efficacy and Safety of the Celacade™ System in Improving Walking Distance in Patients With Intermittent Claudication Secondary to Peripheral Arterial Disease|
- Absolute claudication distance (ACD)
- Health-related quality of life
- Functional status
- Combined incidence of peripheral arterial disease (PAD)-related clinical outcomes
|Study Start Date:||January 2003|
|Estimated Study Completion Date:||December 2005|
SIMPADICO was a multicenter, randomized, double-blind, placebo-controlled trial that enrolled 553 patients with claudication at 50 sites in Canada and the United States. The mean (±SD) patient age was 67±10 years; 72% were males. The duration of claudication was 6.0±6.1 years at entry; 91% had a history of smoking and 34% were current smokers; 36.5% had diabetes. Resting ABI was 0.59+0.14; baseline ICD was 132±104 and ACD 307±209 meters. Results showed that there was no increase in ACD or ICD at 26 weeks with immune modulation therapy (IMT using the Celacade™ system, Vasogen Inc.) compared to placebo and no measurable improvement in quality of life with IMT compared to placebo. However, there was a significant decrease in CRP (high sensitivity assay) in) in the IMT group compared to the placebo group. Conclusion: Immune modulation therapy did not improve walking distance in patients with symptomatic peripheral arterial disease but the decrease in CRP suggests a biologic effect of IMT and will warrant further study.
Reference: A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study of Immune Modulation Therapy in Patients with Symptomatic Peripheral Arterial Disease: The SIMPADICO Trial. Author: Jeffrey W. Olin, Mount Sinai School of Medicine, New York, NY. Presented at Smaller Trial Late-Breaking Clinical trials I, Sunday March 12, 2006. American College of Cardiology 55th Annual Scientific Sessions, March 11-14, 2006, Atlanta, GA.