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Patients With Intermittent Claudication Injected With ALDH Bright Cells — PACE  

Peripheral Artery Disease Clinical Trial

Official title:
Clinical and MR Imaging Assessments in Patients With Intermittent Claudication Following Injection of Bone Marrow Derived ALDH Bright Cells

Clinical Trial Summary

The purpose of this study is to find out if aldehyde dehydrogenase bright (ALDHbr) cells taken from a patient's bone marrow can be placed safely, via intramuscular injections, into their affected calf and lower thigh muscles and improve blood flow and/or peak walking time in patients experiencing pain associated with blocked blood vessels in the leg.

Clinical Trial Description

Peripheral Artery Disease (PAD) occurs when arteries in the arms and legs (most often the legs) become narrowed by plaque. Because of this plaque, patients with PAD are also at increased risk for heart attacks and strokes. Those with PAD often have intermittent claudication (blockage of blood vessels in the leg). This blockage decreases blood flow to the leg muscles, which can cause pain in one or both legs during exercise (such as during walking). Intermittent means the pain comes and goes. Because PAD interferes with circulation, worsening of this condition can increase pain in the leg; sometimes even during periods of rest.

Bone marrow contains special stem cells that may promote blood vessel growth, prevent cell death, and transform themselves into a number of tissues including new muscle. There is a small subpopulation of bone marrow mononuclear cells, called aldehyde dehydrogenase-bright (ALDHbr) cells, that is highly enriched in these types of stem cells. The enzyme in ALDHbr cells responds to damage signals and may play an important role in tissue repair.

In this study we investigate the safety and efficacy of bone marrow derived stem cells with particular characteristics in PAD patients with intermittent claudication and explore new end-points to evaluate therapeutic effects using novel MRI imaging modalities as well as traditional endpoints. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01774097
Study type Interventional
Source The University of Texas Health Science Center, Houston
Contact
Status Active, not recruiting
Phase Phase 2
Start date June 2013
Completion date March 2017
View Details
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