- Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier; patients who have been administered ABT-888 as part of a single or limited dosing study, such as a phase 0 study, should not necessarily be excluded from participating in this study solely because of receiving prior ABT-888