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Sponsors and Collaborators: |
University Hospital, Bordeaux Ministry of Health, France W.L.Gore & Associates |
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Information provided by: | University Hospital, Bordeaux |
ClinicalTrials.gov Identifier: | NCT00221806 |
The aim of this project is to improve the hemocompatibility of vascular prosthesis with a complete covering of its endoluminal surface with autologous endothelial cells. The objective is to obtain a better bypass permeability with arterial prosthesis replacing low diameter vessels in lower limbs
Condition | Intervention | Phase |
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Arteritis |
Device: endothelialised prosthesis |
Phase II |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Open Label, Active Control, Parallel Assignment |
Official Title: | Randomised Study Comparing Endothelialised Prosthesis and Autologous Vein for Under Knee Revascularisation With Femoro Popliteal Bypass. ePTFE |
Estimated Enrollment: | 40 |
Study Start Date: | June 2004 |
Estimated Study Completion Date: | June 2012 |
Physiological vascular endothelium is an hemocompatible and thrombus resistant surface and none of the materials used for revascularisation owns these properties. The aim of this project is to improve the hemocompatibility of vascular prosthesis with a complete covering of their endoluminal surface with autologous endothelial cells. This strategy, that plans to associate an artificial component of synthetic origin and cellular component is a bioartificial vascular substitute concept. First results obtained by an austrian team are really encouraging (with more than 100 patients during last 10 years). Thus, the main objective of this study is to compare efficacy in terms of grafts with endothelialised PTFE prosthesis with great saphenous autologous vein graft for under knee arterial popliteal revascularisation of lower limbs. This is a phase III, randomised equivalent trial. It is open labelled, with 2 parallel well balanced groups.
Forty patients will be randomised. A short segment of the cephalic vein will be cut and some blood will be sampled in patients randomised in the ePTFE group. Endothelial cells of the cephalic vein will be isolated, cultured, with autologous serum, and then amplified before sowing of the internal face of PTFE prosthesis, previously covered with a biological glue clinically validated. Before prosthesis implantation, systematic quality controls will be performed. Implantation will be planned 3 weeks after venous sampling. Eventual failure of cellular culture or prosthesis covering will lead to an autologous vein graft. People randomised in the second group will receive an autologous saphenous vein graft. The primary outcome is to demonstrate the equivalence of time dependent permeability rate between endothelialized PTFE and autologous vein graft. Equivalence between both technics would allow to preserve autologous saphenous vein for later distal bypasses (where it is the best technic) or for coronary bypasses.
Ages Eligible for Study: | 18 Years and older |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Age above 18, male or female, II to IV arteritis level with intermittent limping, under knee femoro popliteal bypass indication. Available saphenous vein, no major trophic trouble, no contra indication to the use of prosthesis.
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Exclusion Criteria:
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France | |
Service de chirurgie vasculaire, Hôpital Pellegrin, Place Amélie Raba Léon | Recruiting |
Bordeaux, France, 33076 | |
Contact: Dominique Midy, MD +33 55679 5526 dominique.midy@chu-bordeaux.fr | |
Contact: Laurence Bordenaave, MD-PhD +33 557656565 laurence.bordenave@u-bordeaux2.fr | |
Principal Investigator: Dominique Midy, MD |
Study Director: | Laurence Bordenave, MD-PhD | Institut National de la Santé Et de la Recherche Médicale, France |
Study Chair: | Jacques Demotes-Mainard, MD-PhD | CIC INSERM-CHU de Bordeaux |
Study ID Numbers: | 9256-01 |
Study First Received: | September 13, 2005 |
Last Updated: | September 13, 2005 |
ClinicalTrials.gov Identifier: | NCT00221806 History of Changes |
Health Authority: | France: Afssaps - French Health Products Safety Agency |
Arteritis, femoro popliteal bypass, endothelialised prosthesis, saphenous vein graft, permeability, Doppler echography |
Vasculitis Vascular Diseases Arteritis |
Vasculitis Vascular Diseases Cardiovascular Diseases Arteritis |