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Autologous Bone Marrow Stem Cell Transfer in Patients With Chronical Critical Limb Ischemia and Diabetic Foot

NCT01232673 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 96

Last updated 2013-03-22

No results posted yet for this study

Summary

A total of 90 patients suffering from end stage-IV Fontaine /CLI and diabetic foot with an ulcerated limb in whom all previous therapeutic strategies failed (e.g. surgical revascularization) will be selected and undergo local transplantation of ABMSCs. The efficacy/safety of this therapy will be assessed by using several endpoints such as (a) prevention of amputation, (b) wound healing and (c) degree of angiogenesis. In order to assess the limb ischemia and hypoxia the several tests and measurements will be performed pre- and post transplantation at a variety of time intervals. The measurements include: TP-toe pressure measurements (by Periflux 5000 Laser Doppler and Oxymetry system), SPP-skin perfusion pressure, ABI-ankle brachial index, LDP-laser Doppler baseline and heat perfusion assessment, TcpO2 without and with O2 provocation inhalation test. In addition, a battery of biochemical and hematological tests of peripheral venous blood sample will be performed.The quality form "EQ-50" will be completed.

8.1 Primary objective: To evaluate an efficacy-safety profile of autologous bone marrow stem cells (ABMSCs) transplantated into chronically and critically ischemic limb (CLI) and into diabetic foot in stage IV Fontaine, Rutherfod 4-6 classification.

8.2 Secondary objectives: 8.2.1 To assess effect of ABMSCs on tissue perfusion of ischemic limb after transplantation by transcutaneous oximetry and the laser Doppler flowmetry using Periflux 5000 system under normal and provocation test conditions. In addition, wound healing of ulcers will be evaluated using a planimetry method from photographs of affected skin taken pre- and post-transplantation.

8.2.2 Relationship between CD 34 progenitor counts separated on gradient-density separation centrifuge from Harvest Technologies and overall effectiveness and safety to treat ischemic limb.

8.3 Priorities: Beside assessment of effectiveness and safety of ABMSCs transplantation ultimate emphasis will be put on avoiding limb amputation. This has significant socioeconomic impact. Therefore this project belongs to the priority programs of clinical research in cardiovascular diseases.

Conditions

  • Critical Limb Ischemia

Interventions

PROCEDURE

BMAC application in Critical Limb Ischemia

Collection of 240ml from both illiac crests, followed by gradient density centrifugation, resulting in obtaining 40ml of BMAC (Bone-Marrow Aspiration Concentrate). BMAC is subsequently administered into the ischemic limb along calf vessels.

Sponsors & Collaborators

  • University Hospital Ostrava

    lead OTHER

Principal Investigators

  • Vaclav Prochazka, MD, PhD · University Hospital Ostrava

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2008-10-31
Primary Completion
2009-11-30
Completion
2010-12-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01232673 on ClinicalTrials.gov