Clinical trial · Observational
Imaging Biomarkers to Validate Response in Enzalutamide-Treated mCRPC
Validation of Imaging-Based Biomarkers of Treatment Response in Patients With Metastatic Castration-Resistant Prostate Cancer Treated With Enzalutamide
NCT02677376CI-TRIAL-00043661completedClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
To determine the feasibility and success rate of tumor tissue procurement using molecular-image-directed biopsies of responding and non-responding osseous metastases, measured by NaF PET/CT, in patients with metastatic castrate-resistant prostate cancer.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Prostatic Neoplasms | Prostate Neoplasm | ALIAS | 0.90 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| 18F-Sodium Fluoride (NaF) | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (0)
[]Primary outcomes (1)
- measure
- The percentage of biopsies obtained from NaF PET/CT- identified responding and non-responding bone metastases that contain tumor tissue from 30 patients
- timeFrame
- 12 weeks
- description
- To determine the feasibility and success rate of tumor tissue procurement using molecular-image-directed biopsies of responding and non-responding osseous metastases, measured by NaF PET/CT, in patients with metastatic castrate-resistant prostate cancer.
Secondary outcomes (4)
- measure
- The number of known response molecular biomarkers obtained from responding lesions as identified using NaF PET/CT in 30 patients who have received 12 weeks of enzalutamide.
- timeFrame
- Within 2 weeks of week 12
- description
- To compare NaF PET/CT responding lesions to known response molecular biomarkers obtained from biopsy of responding lesions
- measure
- The number of patients whose biopsy tissue demonstrates at least 5 markers from a panel of 300 individual markers that have a moderate effect size of 1.0 or greater for the difference between the enzalutamide resistant and responding bone metastases
Eligibility
Eligibility (as posted)
- Sex
- Male
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Histologically proven adenocarcinoma of the prostate. * Identifiable prostate cancer-related osseous metastases on bone scan or NaF PET/CT in the vertebral body, pelvis or other bone. Such lesions must be amenable to serial NaF PET/CT imaging. Preference will be given to subjects with multiple lesions that can be imaged in one image acquisition session to obtain maximal information as well as locations of lesions amenable to bone biopsies. * Patients must be starting enzalutamide for treatment of metastatic castrate-resistant prostate, with cycle 1 day 1 occurring within 14 days after the first baseline NaF PET/CT. Subjects will be allowed to receive enzalutamide treatment on a concurrent study as long as the enzalutamide treatment study does not prohibit concurrent participation. * Men of all races and ethnic groups of age ≥18 years. * The effects of NaF on the developing human fetus are unknown. For this reason and because radiopharmaceuticals used for diagnostic imaging and other therapeutic agents and imaging procedures used in this trial may be or are known to be teratogenic, men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while her partner is participating in this study, she should inform her treating physician immediately. * Patients must be able to comply with all study procedures, including having both the ability and willingness to lie flat for ≥ 30 minutes during imaging and undergo bone biopsies. * Patients must have both the ability to understand and the willingness to sign a written informed consent document. Exclusion Criteria: * Known bleeding diathesis or on therapeutic anticoagulants (warfarin, low-molecular heparin, heparin analogues) that would increase risk of complications from bone biopsies. * History of allergic reactions attributed to compounds of similar chemical or biologic composition to sodium fluoride F-18 (NaF).
References
Publications (0)
Data not yet available
No reference posted for this study.