Comparison of PSMA-based 18F-DCFPyL PET/CT to Conventional Imaging in the Evaluation of Patients With Castration-Resistant Prostate Cancer
Overview
- Phase
- Not Applicable
- Intervention
- 18F DCFPyL- Radiopharmaceutical
- Conditions
- Prostate Cancer
- Sponsor
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
- Enrollment
- 18
- Locations
- 1
- Primary Endpoint
- Change in number of metastatic lesions detected on 18F-DCFPyL PET/CT
- Status
- Completed
- Last Updated
- 5 years ago
Overview
Brief Summary
We intend to validate 18F-DCFPyL for imaging patients with metastatic, castrate-resistant PCa (CRPC), so that it may be used to full advantage in supporting existing and emerging therapies for a spectrum of patients suffering from PCa. In this study we will image patients with CRPC undergoing second-line anti-androgen therapy (enzalutamide or abiraterone) using 18F-DCFPyL-PET/CT for detection of metastases and therapeutic monitoring, with correlation to standard-of-care conventional imaging modalities (CIM) (CT, bone scan) and clinical follow-up.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Willing and able to provide written informed consent
- •Age ≥ 18 years and male
- •Histologically or cytologically confirmed adenocarcinoma of the prostate without neuroendocrine differentiation or small cell histology
- •Patients starting abiraterone (but naïve to enzalutamide) or starting enzalutamide (but naïve to abiraterone)
- •Prior docetaxel-based chemotherapy is permitted but not required
- •Documented metastatic prostate cancer progression as assessed by the treating oncologist with either one or both of the following:
- •Rising PSA over a minimum 1-week interval
- •Radiographic progression in soft tissue and/or bone
- •Ongoing androgen deprivation with serum testosterone \< 50 ng/dL (\< 1.7 nM)
- •Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 2
Exclusion Criteria
- •Serious or uncontrolled co-existent non-malignant disease, including active and uncontrolled infection
- •Abnormal liver functions consisting of any of the following:
- •Serum bilirubin ≥ 1.5 x ULN (except for patients with documented Gilbert's disease)
- •AST or ALT ≥ 2.5 x ULN, (for patients with known liver metastasis, AST or ALT ≤ 5 x ULN is allowed)
- •Uncontrolled hypertension (systolic BP ≥ 160 mmHg or diastolic BP ≥ 95 mmHg)
- •Active or symptomatic viral hepatitis or chronic liver disease
- •History of pituitary or adrenal dysfunction
- •Clinically significant heart disease as evidenced by myocardial infarction, or arterial thrombotic events in the past 6 months, severe or unstable angina, or New York Heart Association (NYHA) Class III or IV heart disease or cardiac ejection fraction measurement of \< 50 % at baseline
- •Other malignancy, except non-melanoma skin cancer, with a ≥ 30% probability of recurrence within 12 months
- •Known brain metastasis
Arms & Interventions
Patients with CRPC, evidence of metastases, planned treatment
Intervention: 18F DCFPyL- Radiopharmaceutical
Outcomes
Primary Outcomes
Change in number of metastatic lesions detected on 18F-DCFPyL PET/CT
Time Frame: up to 2 years
Change in number of metastatic lesions detected from baseline standard of care conventional imaging (CT and Bone Scan) to 18F-DCFPyL PET/CT at 8-12 weeks post- anti-androgen therapy (standard of care)