Treatment of arterial ulcers is problematic. Previous pharmaceutical interventions with for example prostaglandins have produced only limited beneficial effects but have been associated with frequent adverse effects. Positive effects of isoniazid have been observed in a preclinical model of ischemic wound healing (Weinreich et al. Surgery 2010).
The main objective of this trial is to study the healing effect of an oral drug (isoniazid) in patients with ischemic (arterial) leg ulcers defined by a systolic toe pressure <40 mm Hg.