2. Agree to have a medically supervised serum pregnancy test with sensitivity of at least 25 mIU/mL obtained at Screening. A serum pregnancy test is to be performed within 72 hours prior to Day 1 of starting study therapy on Cycle 1 Day -6, and within 72 hours prior to Day 1 of every subsequent cycle, and at the Treatment Discontinuation Visit. The subject may not receive IP until the Investigator has verified that the result of the pregnancy test is negative.