GENEVA, SWITZERLAND--(Marketwire - August 19, 2008) - PregLem SA, a Swiss biopharmaceutical company specialized in reproductive medicine, today announced the start of an international Phase III clinical trial program for PGL4001 (ulipristal) in symptomatic uterine myoma, a common benign solid tumor of the genital tract in women of reproductive age. PGL4001, an orally active, selective progesterone receptor modulator, was shown in a previous Phase II study to be well tolerated and effective both in immediately stopping uterine bleeding, a major symptom associated with the condition, and in reducing myoma volume. Results of the Phase III trials are expected in 2010.