<qa>  What is the name of the two arms that are treated in the absence of unacceptable toxicity?- Arm II: Patients receive oral placebo as in arm I. In both arms, treatment continues in the absence of unacceptable toxicity or elevation of triglycerides to greater than 800 mgdL. Patients undergo 2 breast biopsies in the same location on days 1 and 29. 