A randomized phase II trial of Arginine Butyrate with standard local therapy in refractory sickle cell leg ulcers.

06:00 EDT 20th October 2010 | BioPortfolio

Summary of "A randomized phase II trial of Arginine Butyrate with standard local therapy in refractory sickle cell leg ulcers."

Sickle cell leg ulcers are often debilitating, refractory to healing, and prone to recurrence. Healing of leg ulcers was incidentally observed during dose-ranging trials of Arginine Butyrate in beta haemoglobinopathies. Here, a controlled Phase II trial was performed in sickle cell patients who had lower extremity ulcers refractory to standard care for at least 6 months. Patients were randomized to receive standard local care alone (Control Arm) or standard care with Arginine Butyrate administered 5 d/week (Treatment Arm), for 12 weeks. Ulcers were photographed weekly, traced, and ulcer areas were calculated by computerized planimetry and compared between the two study arms. Twenty-seven study courses were evaluated. Control Arm subjects had 25 ulcers with a mean area of 25·7 cm(2) initially and 23·2 cm(2) after 12 weeks; 2/25 (8%) healed completely. Treatment Arm subjects had 37 ulcers with a mean area of 50·6 cm(2) initially and 28·3 cm(2) at 12 weeks; 11/37 of these (30%) healed completely. After 3 months, proportions of ulcers which healed were 6/25 (24%) and 29/37 (78%), in the Control and Treatment Arms respectively (P < 0·001). These findings strongly suggest that Arginine Butyrate merits further evaluation for the treatment of refractory sickle cell leg ulcers in larger trials.


Cancer Center and Hemoglobinopathy Thalassemia Research Unit, Boston University School of Medicine, Boston, MA, USA Schneider Children's Medical Centre of Israel, Petah Tikva, Israel University of Tennessee Health Science Center, Memphis, TN New York Bloo

Journal Details

This article was published in the following journal.

Name: British journal of haematology
ISSN: 1365-2141


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