Conditions: Prostate Cancer
Allocation: NON_RANDOMIZED | Intervention model: SINGLE_GROUP
Enrollment: 38
Healthy volunteers: no

Brief summary:
This is an open-label, multicenter, Phase 1/2 study of TAK-700 in combination with docetaxel and prednisone that will evaluate the safety and pharmacokinetics (PK) of the combination and will allow estimation of prostate-specific antigen (PSA) response in men with metastatic castration-resistant prostate cancer (mCRPC).

Detailed description:

Arms:
arm 1: Orteronel (TAK-700) 200 milligram (mg), tablets, orally, twice daily (BID) starting from Day 1 along with docetaxel 75 milligram per square meter (mg/m\^2), infusion, intravenously over 1 hour on Day 1 and prednisone 5 mg, tablets , orally, twice daily from Day 8 up to Day 21 of each treatment cycle. Cycle 1 of Phase 1 consisted of a 28-day treatment period and subsequent cycles consisted of 21-day treatment periods. arm 2: Orteronel (TAK-700) 400 mg, tablets, orally, twice daily starting from Day 1 along with docetaxel 75 mg/m\^2, infusion, intravenously over 1 hour on Day 1 and prednisone 5 mg, tablets , orally, twice daily from Day 8 up to Day 21 of each treatment cycle. Cycle 1 of Phase 1 consisted of a 28-day treatment period and subsequent cycles consisted of 21-day treatment periods. arm 3: Orteronel (TAK-700) 400 mg, tablets, orally, twice daily starting from Cycle 1 Day 15 along with docetaxel 75 mg/m\^2, infusion, intravenously over 1 hour on Day 1 and prednisone 5 mg, tablets, orally, twice daily from Day 1 up to Day 21 of each 21-day treatment cycle until disease progression or end of treatment (EOT).

Interventions: intervention 1: TAK-700 intervention 2: Docetaxel intervention 3: Prednisone
Intervention descriptions: intervention 1: TAK-700 with docetaxel and prednisone on a continuous schedule. intervention 2: TAK-700 with docetaxel and prednisone on a continuous schedule. intervention 3: TAK-700 with docetaxel and prednisone on a continuous schedule.

Protocol document: