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Study of Abiraterone Acetate Without Exogenous Glucocorticoids in Men With Castration-resistant Prostate Cancer

Castration-resistant Prostate Cancer Clinical Trial

Official title:
Phase II Clinical Trial of Abiraterone Acetate Without Exogenous Glucocorticoids in Men With Castration-resistant Prostate Cancer With Correlative Assessment of Hormone Intermediates.

Clinical Trial Summary

This study is comparing the safety and effectiveness of abiraterone acetate alone, followed by the addition of prednisone (when the participant's disease worsens or the physician feels it would lessen symptoms of toxicity) versus the current approved treatment regimen which involves the concomitant use of prednisone in conjunction with abiraterone acetate. Additionally, this study is also examining why participants stop responding to treatment with abiraterone acetate by evaluating blood and tissue.

Clinical Trial Description

Participants will be treated with abiraterone acetate (AA) in 28-day cycles. Participants will be monitored (weekly for the first two cycles, then on Day 1 of each subsequent cycle) for symptoms of persistent or severe mineralocorticoid excess (including hypertension, hypokalemia). For participants who experience symptoms of persistent or severe hypertension or hypokalemia as detailed in the above schema, prednisone 5 mg by mouth twice daily will be added. We will monitor for other symptoms of AA toxicity to include fluid retention and fatigue. For participations who tolerate AA monotherapy without the addition of prednisone to manage symptoms of persistent or severe mineralocorticoid excess, prednisone 5 mg by mouth twice daily will be added at Prostate Specific Antigen (PSA) progression. Participants will be continued on study until symptomatic or radiographic progression or taken off study for another reason as detailed in protocol. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02025010
Study type Interventional
Source Dana-Farber Cancer Institute
Contact
Status Active, not recruiting
Phase Phase 2
Start date January 27, 2014
Completion date June 2024
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