Evaluation of Metformin Activity in Addition to Conventional Treatment of Grade II or III Pulmonary Arterial Hypertension (PAH) (MetHTAP)
Treatment of PAH includes exercise limitation, non specific agents (anticoagulants, diuretics and supplemental oxygen), pulmonary specific vasodilators and antiproliferative agents.
Recent data obtained by our group, within rat PAH models, showed that the antihyperglycemic drug metformin, used in France since 1959 in diabetic type II patients, significantly acts at the pulmonary arteries level.
According to these results, and knowing that metformin is a widely used drug, with a favorable safety profile, the investigators decided to set up a pilot study, in order to evaluate the activity of metformin in PAH treatment. In parallel, the investigators will focus on metformin mechanism of action.
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
- The primary objective of this study will be to demonstrate the improvement of walk test distance in patients with pulmonary arterial hypertension (PAH) treated by metformin.
|Study Start Date:||May 2011|