This phase II trial studies how well hyperpolarized carbon C 13 pyruvate magnetic resonance spectroscopic imaging works in predicting treatment response in patients with prostate cancer. Hyperpolarized carbon C 13 pyruvate magnetic resonance spectroscopic imaging may help to accurately predict how prostate cancer patients will respond to standard therapy (abiraterone and apalutamide).
PRIMARY OBJECTIVE: I. To assess reproducibility of quantitative spectroscopic and imaging parameters in hyperpolarized 13-C pyruvate magnetic resonance spectroscopic imaging (MRSI), including key performance indicator (kpl), which assesses the rate of conversion of 13-C pyruvate to 13-C lactate in the tissue of interest, using a test-retest study design. SECONDARY OBJECTIVE: I. To provide initial assessment of the sensitivity and specificity of hyperpolarized 13-C-pyruvate MRSI performed pre-therapy for detecting high risk localized prostate cancer. OUTLINE: Patients receive hyperpolarized carbon C 13 pyruvate intravenously (IV) over 10-20 seconds and undergo MRSI over 2-3 minutes at 6 and 8 weeks. After completion of study, patients are followed up at 1 day and then for up to 3 years.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Given IV
Undergo MRSI
M D Anderson Cancer Center
Houston, Texas, United States
Reproducibility of the key performance indicator
Time frame: Up to 3 years
Sensitivity assessed by comparison to biopsy
The location of signal by hyperpolarized 13-C-pyruvate will be compared to location of tumor at biopsy or if available, follow-up surgical pathology in patients who did not receive interval additional prostate directed therapy, such as hormonal or radiation therapy.
Time frame: Up to 3 years
Specificity assessed by comparison to biopsy
The location of signal by hyperpolarized 13-C-pyruvate will be compared to location of tumor at biopsy or if available, follow-up surgical pathology in patients who did not receive interval additional prostate directed therapy, such as hormonal or radiation therapy.
Time frame: Up to 3 years
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