THE WOODLANDS, Texas--(BUSINESS WIRE)--Repros Therapeutics Inc.® (NasdaqCM:RPRX) today announced it has commenced preparation for dosing the 3 mg cohort in the Company’s low dose study of Proellex® following a safety review of data from women that have completed 8 weeks of treatment at a 1 mg dose. No signals of liver toxicity were detected to date in the 1 mg group. Unexpectedly, low levels of drug activity were detected in this first cohort. The Company plans to commence dosing of the second group, 3 mg Proellex, next week.