PSMA-PETgRT: PSMA-PET Guided Radiotherapy
Study Details
Study Description
Brief Summary
PSMA PET/CT has demonstrated higher sensitivity in detecting metastases than current imaging standard of care (CT and bone scan). [18F]DCFPyL is a promising high-sensitivity second generation PSMA-targeted urea-based PET probe. The hypothesis is that definitive radiotherapy (RT) informed by PSMA-PET findings will lead to improved cancer control outcomes compared to RT guided by conventional staging only. This study utilizes cmRCT design in companion to PERA (Partnership initiative for the Evaluation of technological innovation in Radiotherapy).
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
Phase 2/Phase 3 |
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Experimental: PSMA-PETgRT PSMA-PET/CT imaging is performed during treatment planning. Treating physicians are informed of test results and advised to include up to 5 PSMA-PET avid sites distant to the prostate gland, if present, in the radiotherapy treatment plan. |
Radiation: PSMA -PET/CT simulation
PET/CT simulation.
If no additional lesions detected: RT as planned per standard care.
If PSMA-PET/CT imaging consistent with oligometastases (1-5 lesions): all lesions must be treated with definitive RT.
If PSMA-PET/CT imaging consistent with widely metastatic disease (>5 lesions): treatment of all detected disease with RT is not recommended, but treatment of the primary site as initially planned is encouraged.
|
Active Comparator: Standard Patient's receive standard care radiotherapy and do not undergo PSMA-PET/CT imaging. |
Radiation: Standard-care simulation
No PSMA-PET/CT as part of RT treatment planning.
|
Outcome Measures
Primary Outcome Measures
- Failure-free survival [5 years]
Time to failure event
Secondary Outcome Measures
- Acute and delayed toxicities [5 years]
Rate of Attributable Gr2+ toxicities (CTCAE v4.0)
- Rate of failure [5 years]
Event rates
- Survival [5 years]
Event rates
- Health-related quality of life [5 years]
Qol measures
- Detection yield of PSMA PET imaging [2 years]
Rate of new lesions identified on imaging
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Enrolled in PERA (CHUM CER 17.0.32) and consented to contact for investigational trials.
-
Histological diagnosis of prostate cancer planned for curative-intent radiotherapy.
-
ECOG 0-1
-
Charlson Cormobidity Index ≤ 4
-
High-risk of distant metastases as defined by any of:
-
Oligometastases (≤5) (regional or distant) identified on conventional staging, with ≤ 3 metastasis in any non-bone organ. For a spine metastasis, direct involvement of adjacent spinal segments would still be considered as "one" tumour. For nodal metastases, more than one involved lymph node in the same ipsilateral nodal region/chain would still count as "one" tumour. Defined nodal regions for this protocol include inguinal, external iliac, internal iliac, common iliac, retroperitoneal, hilar/mediastinal, anterior cervical, posterior cervical, and axillary. Metastases in all other organs that are within 1cm of each other will be considered as "one" tumour.
-
Subjects with newly diagnosed high-risk (NCCN) localized prostate cancer and CAPRA score 6-10.
-
Subjects with a prior history of treated prostate cancer (RP or RT), and biochemical failure (Phoenix-RT or>0.2ng/ml-RP)
-
Standard staging (bone scan, CT pelvis) within 12 weeks of consent.
Exclusion Criteria:
-
Prior androgen deprivation therapy terminated < 12 months prior to enrollment.
-
Prior or planned PET scan.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | CSSSL - Cité de la Santé Laval | Laval | Quebec | Canada | |
2 | Centre Hospitalier de l'Université de Montréal | Montréal | Quebec | Canada | |
3 | CHU de Québec | Québec | Quebec | Canada |
Sponsors and Collaborators
- Centre hospitalier de l'Université de Montréal (CHUM)
- Progenics Pharmaceuticals, Inc.
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 17.229
- PERA GU17.1