Lymfactin® is world’s first and only clinical stage gene therapy that repairs damages of the lymphatic system. It expresses the human growth factor VEGF-C, which is natural and specific for the development of lymphatic vessels. Based on preclinical studies, Lymfactin® triggers the growth of new functional lymphatic vasculature in the injured area and thus repairs the underlying cause of secondary lymphedema. The efficacy of Lymfactin® is currently studied in the Phase 2 clinical study AdeLE in Finland and Sweden. Based on cumulated data from a Phase 1 clinical study in 15 patients with breast cancer associated LE, Lymfactin® is safe and well tolerated.