Purpose To investigate the eYcacy and safety of dienogest as a long-term treatment in endometriosis, with follow-up after treatment discontinuation. The study included women
with endometriosis, who had previously completed a 12-week, placebo-controlled study of dienogest, who participated in an open-label extension study for up to 53 weeks. Thereafter,a patient sub group was evaluate.

Purpose To investigate the eYcacy and safety of dienogest as a long-term treatment in endometriosis, with follow-up after treatment discontinuation. The study included women
with endometriosis, who had previously completed a 12-week, placebo-controlled study of dienogest, who participated in an open-label extension study for up to 53 weeks. Thereafter,a patient sub group was evaluate.