Allogeneic ABCB5-positive Stem Cells for Treatment of CVU

2017-08-22 17:53:21 | BioPortfolio


The aim of this clinical trial is to investigate the efficacy (by monitoring the wound size reduction of Chronic Venous Ulcers) and safety (by monitoring adverse events) of the medicinal product to be studied after one single application on the wound surface in patients with Chronic Venous Ulcers.


This is an interventional, single arm, phase I/IIa clinical trial to investigate the efficacy and safety of allogeneic ABCB5-positive mesenchymal stem cells (MSCs) on wound healing in patients with chronic venous ulcer (CVU). Allogeneic MSCs will be isolated ex vivo and will be expanded in vitro. The IMP incorporating the ABCB5-positive MSCs will then be applied on the wound surface of CVU under local anesthesia.

Patients are followed up for efficacy for 3 months which allows to distinguish actual wound healing from transient wound coverage.

The wound healing process will be documented by standardized photography. The wound size evaluation will start on the day of the first change of wound dressing. The quality of the wound healing process will be assessed on the basis of formation of granulation tissue, epithelialization and wound exudation.

Pain will be assessed using a numerical rating scale and quality of life will be investigated with standardized and validated questionnaires. To assess long-term safety of allo-APZ2-CVU three follow-up visits at Months 6, 9 and 12 post IMP applications are included.

Study Design


Skin Ulcer Venous Stasis Chronic




Klinik für Dermatologie im St. Maria Hilf Krankenhaus, Ruhr-Universität Bochum


Not yet recruiting


Rheacell GmbH & Co. KG

Results (where available)

View Results


Published on BioPortfolio: 2017-08-22T17:53:21-0400

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Medical and Biotech [MESH] Definitions

Impaired venous blood flow or venous return (venous stasis), usually caused by inadequate venous valves. Venous insufficiency often occurs in the legs, and is associated with EDEMA and sometimes with VENOUS STASIS ULCERS at the ankle.

A condition caused by one or more episodes of DEEP VEIN THROMBOSIS, usually the blood clots are lodged in the legs. Clinical features include EDEMA; PAIN; aching; heaviness; and MUSCLE CRAMP in the leg. When severe leg swelling leads to skin breakdown, it is called venous STASIS ULCER.

Ulceration of the skin and underlying structures of the lower extremity. About 90% of the cases are due to venous insufficiency (VARICOSE ULCER), 5% to arterial disease, and the remaining 5% to other causes.

Skin breakdown or ulceration caused by varicose veins in which there is too much hydrostatic pressure in the superficial venous system of the leg. Venous hypertension leads to increased pressure in the capillary bed, transudation of fluid and proteins into the interstitial space, altering blood flow and supply of nutrients to the skin and subcutaneous tissues, and eventual ulceration.

An ULCER of the skin and underlying tissues.

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