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The purpose of this study is to evaluate the effects of multiple doses of abiraterone acetate plus prednisone on the pharmacokinetics (study of what the body does to a drug) of single doses of dextromethorphan hydrobromide and theophylline in patients with castration resistant prostate cancer.
Full description
This is an open-label (identity of assigned study drug will be known) study of abiraterone acetate plus prednisone in male patients with metastatic castration-resistant prostate cancer. This study will consist of screening, treatment, and follow-up periods, and will have 2 study groups. Patients in Group A and B will receive daily abiraterone acetate (1000 mg) plus prednisone (5 mg) twice daily beginning on Cycle 1 Day 1 until disease progression. Patients in Group A will take dextromethorphan hydrobromide 30 mg administered orally once daily on Day -8 and Day 8 of Cycle 1. Patients in Group B will take theophylline 100 mg administered orally once daily on Day -8 and Day 8 of Cycle 1. Serial pharmacokinetic samples will be collected and safety will be monitored throughout the study.
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34 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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