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Angiogenic Precursor Cell Treatment of Critical Limb Ischemia Decreases Ulcer Size, Amputation and Death Rate: Re-Examination of phase II ACP NO-CLI Trial Data

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Open Access
Article Type Clinical Trials
Subject Medicine Group
OCLC JBRES Record
Fraser C Henderson*, Ina Sarel, Kelly Tuchman, Stephen Lewis and York Hsiang
Issue: Volume5-Issue2
Pages: 092-105
Received: 2024-01-18
Accepted: 2024-02-01
Published: 2024-02-02

Abstract

Introduction: Critical limb ischemia has a prevalence in the US of 1.33%, with mortality 15-20% and major amputation 10-40% per year. Stem cell treatment has emerged as a treatment option for the 45% of patients for whom revascularization procedures are not possible.

Objective: This study re-examines the data of the Phase II clinical treatment of no option Critical limb ischemia with Hemostemix’ angiogenic cell precursors, focusing upon ulcer wound healing, amputation and death rate of this cohort.

Methods: Primary endpoints were changes in ulcer size and major amputation or death within one year of treatment. The secondary endpoint was change in pain level.

Results: From 2015 to 2021, 67 patients with no option Critical limb ischemia were allocated to treatment with ACP-01 (46/67) or placebo (21/67). From this data, only patients who presented with wound ulcers before administration of ACP-01 were reviewed (21 treatment, 8 placebo). Ulcer size in the treated group decreased from a mean of 1.46 cm2 to 0.48 mm2 (p = 0.01) by 3 months. There was no significant decrease in the size of the ulcers of the placebo group (p < 0.54). At one year there were no complications related to treatment. The treatment group had one amputation (4.8%) and one death (4.8%); the placebo group had 2 amputations (25%) and 1 death (12.5%). Change in pain was not significant in either group at 3 months, but at 1 year was improved in the placebo group (p = 0.01).

Conclusion: The administration of ACP-01 within a program of careful patient follow up is safe and associated with reduced ulcer size and decreased rate of amputation and death. Consideration should be given to re-administration of stem cell treatments every 3-6 months to optimize improvement of Critical limb ischemia. Further studies, more appropriately powered, are warranted.

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© 2024 Henderson FC, et al. Distributed under Creative Commons CC-BY 4.0 Creative CommonsAttribution

How to cite this article

Henderson FC, Sarel I, Tuchman K, Lewis S, Hsiang Y. Angiogenic Precursor Cell Treatment of Critical Limb Ischemia Decreases Ulcer Size, Amputation and Death Rate: Re-Examination of phase II ACP NO-CLI Trial Data. J Biomed Res Environ Sci. 2024 Feb 02; 5(2): 092-0105. doi: 10.37871/jbres1876, Article ID: JBRES1876, Available at: https://www.jelsciences.com/articles/ jbres1876.pdf

Subject area(s)

Clinical TrialsVascular Medicine

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