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- Klinische proef NCT01799811
Cryopreserved Saphenous Vein Allograft in Patients With Critical Limb Ischemia for Peripheral Revascularization (LIMBSAVE)
Prospective, Multicenter, Primary Below the Knee Bypass Evaluation With CryoVein® Cryopreserved Saphenous Vein Allograft in Patients With Critical Limb Ischemia
Studie Overzicht
Toestand
Gedetailleerde beschrijving
A minimum of 50 CVA will be implanted in enrolled patients at up to 6 participating sites. The Study will include prospective evaluations on these patients at discharge, 1, 3, 6, 9, 12, 18 and 24 months following surgery. The window for follow-up visits is ± 2 weeks for each time point. All Study patients will be expected to participate in all follow-up evaluations unless precluded by patient death.
Patient status and graft performance data will be collected on all patients consented and enrolled into the Study. The primary endpoint of the Study will be limb salvage. The secondary endpoints of the Study will include primary patency, secondary patency, morbidity and mortality per the same reporting standards.
Patient attributes (age, gender, etc.) and preoperative assessments (indication for surgery, medical history) will be summarized using descriptive statistics. Graft performance will be presented as freedom from an event endpoint (patient death, graft complication, amputation, graft explant) as calculated by the Kaplan-Meier method. Log Rank and Cox Regression will be utilized for comparison between subgroups of the patient population. Statistical software will be used to compile and analyze all submitted clinical data.
The method of data reporting may include, but is not limited to, a description of the sample population, frequency distributions of patient demographics, allograft statistics, and follow-up percentages, summary of event data, correlation analysis, and actuarial analysis
Studietype
Inschrijving (Werkelijk)
Contacten en locaties
Studie Locaties
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Arizona
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Phoenix, Arizona, Verenigde Staten, 85006
- Arizona Heart Institue
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California
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Palo Alto, California, Verenigde Staten, 94304
- Veteran's Administration
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San Francisco, California, Verenigde Staten, 94143-0222
- University of California at San Francisco
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Florida
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Pensacola, Florida, Verenigde Staten, 32513
- Sacred Heart Hospital
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Illinois
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Urbana, Illinois, Verenigde Staten, 61801
- Carle Foundation Hospital
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Texas
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Galveston, Texas, Verenigde Staten, 77555-0737
- University of Texas Medical Branch
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Temple, Texas, Verenigde Staten, 76508
- Scott & White Memorial Hospital
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Patient is an acceptable candidate to receive primary open bypass on the limb receiving the CVA.
- CLI diagnosis of Rutherford Class 5 or 6.
- Tibio-peroneal trunk, Tibial or Peroneal outflow artery.
- Minimum of 1 patent run-off artery.
- Serum Creatinine < 2.4 mg/dl.
- Life expectancy > 2 years from consent.
- 18 years of age or older at the time of consent.
- Male or non-pregnant female.
- Ability to understand and provide written informed consent.
- Willing and able to attend and cooperate with the follow-up examinations.
- Able to follow Study required post-operative daily aspirin and/or other oral anticoagulation/antiplatelet regimen.
Exclusion Criteria:
- Patient currently receiving hemodialysis for end stage renal disease.
- Known hypercoaguable state.
- Known heparin allergy.
- Patients with any condition which, in the opinion of the investigator could preclude evaluation of response or completion of follow-up or affect patient safety.
- Currently being treated with an investigational device or drug (within 3 months prior to surgery).
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
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CLI patient's needing open bypass
Patients presenting with Rutherford Class 5 or 6 CLI that are being evaluated for open peripheral arterial revascularization.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
Limb Salvage
Tijdsspanne: Assessed for 24 months following surgery.
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Patients will undergo follow-up assessment for limb salvage.
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Assessed for 24 months following surgery.
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Patency
Tijdsspanne: Assessed until graft failure over a period of 24 months. From date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months".
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Patients with functional grafts will undergo follow-up Study evaluation via Duplex Ultrasound.
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Assessed until graft failure over a period of 24 months. From date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months".
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Andere uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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All cause morbidity and mortality
Tijdsspanne: Assessed for 24 months following implant surgery.
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Data will be collected on any graft complications such as, but not limited to occlusion, bleeding complications, infection, or aneurysm.
Patient survival will also be recorded.
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Assessed for 24 months following implant surgery.
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Medewerkers en onderzoekers
Sponsor
Publicaties en nuttige links
Algemene publicaties
- Walker PJ, Mitchell RS, McFadden PM, James DR, Mehigan JT. Early experience with cryopreserved saphenous vein allografts as a conduit for complex limb-salvage procedures. J Vasc Surg. 1993 Oct;18(4):561-8; discussion 568-9.
- Shah RM, Faggioli GL, Mangione S, Harris LM, Kane J, Taheri SA, Ricotta JJ. Early results with cryopreserved saphenous vein allografts for infrainguinal bypass. J Vasc Surg. 1993 Dec;18(6):965-9; discussion 969-71. doi: 10.1067/mva.1993.50617.
- Leseche G, Penna C, Bouttier S, Joubert S, Andreassian B. Femorodistal bypass using cryopreserved venous allografts for limb salvage. Ann Vasc Surg. 1997 May;11(3):230-6. doi: 10.1007/s100169900039.
- Martin RS 3rd, Edwards WH, Mulherin JL Jr, Edwards WH Jr, Jenkins JM, Hoff SJ. Cryopreserved saphenous vein allografts for below-knee lower extremity revascularization. Ann Surg. 1994 Jun;219(6):664-70; discussion 670-2. doi: 10.1097/00000658-199406000-00009.
- Farber A, Major K, Wagner WH, Cohen JL, Cossman DV, Lauterbach SR, Levin PM. Cryopreserved saphenous vein allografts in infrainguinal revascularization: analysis of 240 grafts. J Vasc Surg. 2003 Jul;38(1):15-21. doi: 10.1016/s0741-5214(03)00330-6.
- Bannazadeh M, Sarac TP, Bena J, Srivastava S, Ouriel K, Clair D. Reoperative lower extremity revascularization with cadaver vein for limb salvage. Ann Vasc Surg. 2009 Jan-Feb;23(1):24-31. doi: 10.1016/j.avsg.2008.04.011. Epub 2008 Jul 26.
- Buckley CJ, Abernathy S, Lee SD, Arko FR, Patterson DE, Manning LG. Suggested treatment protocol for improving patency of femoral-infrapopliteal cryopreserved saphenous vein allografts. J Vasc Surg. 2000 Oct;32(4):731-8. doi: 10.1067/mva.2000.110049.
- Zehr BP, Niblick CJ, Downey H, Ladowski JS. Limb salvage with CryoVein cadaver saphenous vein allografts used for peripheral arterial bypass: role of blood compatibility. Ann Vasc Surg. 2011 Feb;25(2):177-81. doi: 10.1016/j.avsg.2010.07.020.
- Randon C, Jacobs B, De Ryck F, Beele H, Vermassen F. Fifteen years of infrapopliteal arterial reconstructions with cryopreserved venous allografts for limb salvage. J Vasc Surg. 2010 Apr;51(4):869-77. doi: 10.1016/j.jvs.2009.11.062.
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- AVG1201.000-M
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Beschrijving IPD-plan
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