Investigating Safety, Tolerability and Efficacy of AZD5363 When Combined With Paclitaxel in Breast Cancer Patients

AZD5363: oral capsule, twice daily in a weekly 2 days on-treatment, 5 days-off, schedule. Treatment to begin the day following the first dose of paclitaxel and to continue until treatment withdrawal. Paclitaxel: intravenously once a week. AZD5363 and paclitaxel will be received for 3 consecutive weeks, followed by one week off-therapy in 4-week cycles.

AZD5363: oral capsule, twice daily in a weekly 4 days on-treatment, 3 days-off, schedule. Treatment to begin the day following the first dose of paclitaxel and to continue until treatment withdrawal. Paclitaxel: intravenously once a week. AZD5363 and paclitaxel will be received for 3 consecutive weeks, followed by one week off-therapy in 4-week cycles.

Either a 2/5 or 3/4 intermittent dosing schedule of AZD5363 based on the outcome of Part A. Dosage: oral formulation, twice daily. Treatment to begin the day following the first dose of paclitaxel and to continue until treatment withdrawal. Paclitaxel: intravenously once a week. AZD5363 and paclitaxel will be received for 3 consecutive weeks, followed by one week off-therapy in 4-week cycles.

Either a 2/5 or 3/4 intermittent dosing schedule of placebo matched to AZD5363 based on the outcome of Part A. Dosage: oral formulation, twice daily. Treatment to begin the day following the first dose of paclitaxel and to continue until treatment withdrawal. Paclitaxel: intravenously once a week. placebo and paclitaxel will be received for 3 consecutive weeks, followed by one week off-therapy in 4-week cycles.