From a Sanofi-aventis news release:
Sanofi-aventis (EURONEXT: SAN and NYSE: SNY) and its wholly-owned subsidiary, BiPar Sciences, announced that the clinical development program in metastatic triple-negative breast cancer (mTNBC) for the investigational PARP1 inhibitor, BSI-201, progresses as planned with the Phase 3 study meeting expectations on patient accrual and trial site coverage in the United States. Study investigators have enrolled 214 of the target number of 420 patients.
BSI-201 entered a Phase 3 clinical trial in the United States in July 2009 and is being evaluated in combination with chemotherapy in patients with mTNBC, a condition defined by tumors lacking expression of estrogen, progesterone receptors and without overexpression of HER2. BSI-201 is a novel investigational targeted therapy that inhibits poly (ADP-ribose) polymerase (PARP1), an enzyme involved in DNA damage repair. Read more on Medicalnewstoday.