Clinical Trials Logo

Clinical Trial Summary

This phase II trial tests whether relugolix and radiation therapy works to shrink tumors in patients with prostate cancer that has spread in a limited way to 1 to 5 other parts of the body (oligometastatic). Testosterone can cause the growth of prostate cancer cells. Relugolix lowers the amount of testosterone made by the body. This may help stop the growth of tumor cells that need testosterone to grow. Giving relugolix with radiation therapy may help lower the chance of prostate cancer growing or spreading.


Clinical Trial Description

PRIMARY OBJECTIVE: I. Compare conventional radiological progression-free survival (rPFS) for positron emission tomography (PET)-detected, biochemically recurrent, oligometastatic, castration-sensitive prostate cancer patients treated with stereotactic ablative body radiation therapy (SABR) plus placebo versus (vs.) SABR plus relugolix. SECONDARY OBJECTIVES: I. Compare conventional or PET-based radiological progression-free survival (prPFS) between treatment arms. II. Compare patient-reported sexual and hormonal quality of life as assessed by corresponding Expanded Prostate Cancer Index Composite Short Form (EPIC-26) domains between treatment arms. III. Compare other measures of quality of life obtained from the European Quality of Life Five Dimension Five Level Scale Questionnaire (EQ5D-5L), European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire Core 30 (QLQ-30), and Patient Reported Outcomes Measurement Information System (PROMIS) Fatigue instruments between the two treatment arms. IV. Compare time to salvage therapy and time to castration-resistance between treatment arms. V. Compare local progression (SABR-targeted lesion), biochemical progression, distant metastases, prostate cancer-specific mortality, metastasis-free survival, and overall survival between treatment arms. VI. Determine adverse events rates and compare rates between the two treatment arms. EXPLORATORY OBJECTIVE: I. Evaluate genomic and peripheral tissue and blood markers of treatment response. OUTLINE: Patients are randomized to 1 of 2 arms. ARM I: Patients receive placebo orally (PO) once daily (QD) on days 1-180 (three tablets on Day 1, one tablet daily on Days 2-180) and undergo SABR for 1-3 weeks in the absence of disease progression or unacceptable toxicity. ARM II: Patients receive relugolix PO QD on days 1-180 (three tablets on Day 1, one tablet daily on Days 2-180) and undergo SABR for 1-3 weeks in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 3 and 6 months, every 6 months for 4 years, and then annually thereafter. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05053152
Study type Interventional
Source NRG Oncology
Contact
Status Recruiting
Phase Phase 2
Start date December 8, 2021
Completion date October 10, 2029

See also
  Status Clinical Trial Phase
Active, not recruiting NCT03796767 - Salvage Oligometastasectomy and Radiation Therapy in Recurrent Prostate Cancer Phase 2
Completed NCT04400656 - PROState Pathway Embedded Comparative Trial
Completed NCT05735223 - A Prospective Study to Evaluate the Impact of Maximal Urethral Length Preservation Technique During Robotic Laparoscopic Prostatectomy on the Stretched Flaccid Penile Length and Continence N/A
Recruiting NCT04175431 - Prostate Specific Membrane Antigen (PSMA) or (FACBC) PET/CT Site-Directed Therapy for Treatment of Prostate Cancer, Flu-BLAST-PC Study Phase 2
Completed NCT05197257 - 68Ga-PSMA-11 PET in Patients With Prostate Cancer Phase 3
Withdrawn NCT03982173 - Basket Trial for Combination Therapy With Durvalumab (Anti-PDL1) (MEDI4736) and Tremelimumab (Anti-CTLA4) in Patients With Metastatic Solid Tumors Phase 2
Terminated NCT02491411 - Dexamethasone Prior to Re-treatment With Enzalutamide in Treating Patients With Metastatic Hormone-Resistant Prostate Cancer Previously Treated With Enzalutamide and Docetaxel N/A
Active, not recruiting NCT02254746 - A Phase I-II Dose Escalation Study of Stereotactic Body Radiation Therapy in Patients With Localized Prostate Cancer N/A
Active, not recruiting NCT05496959 - 177-Lutetium-PSMA Before Stereotactic Body Radiotherapy for the Treatment of Oligorecurrent Prostate Cancer, The LUNAR Study Phase 2
Completed NCT02940262 - Gallium Ga 68-labeled PSMA-11 PET/CT in Detecting Recurrent Prostate Cancer in Patients After Initial Therapy Phase 3
Recruiting NCT04391556 - Interest of PET-PSMA Imaging Potentialised by Androgen Blockade in Localized Prostatic Adenocarcinoma Phase 2
Enrolling by invitation NCT03503643 - Hemi-Gland Cryoablation for Prostate Cancer at UCLA
Recruiting NCT05832086 - Intermittent Fasting Using a Fasting-Mimicking Diet to Improve Prostate Cancer Control and Metabolic Outcomes Phase 2
Suspended NCT05064111 - Utility of Adding MR Fusion to Standard US Guided Prostate Biopsy
Not yet recruiting NCT04031378 - Single Dose Radiotherapy (SDRT) With or Without Adjuvant Systemic Therapy for Oligometastatic Prostate Cancer Phase 2
Recruiting NCT02600156 - Focal Laser Ablation of Low to Intermediate Prostate Cancer Tumors N/A
Recruiting NCT05726292 - A Study of Enzalutamide Plus the Glucocorticoid Receptor Antagonist Relacorilant Versus Placebo for Patients With High-risk Localized Prostate Cancer Phase 2
Recruiting NCT04423211 - Treating Prostate Cancer That Has Come Back After Surgery With Apalutamide and Targeted Radiation Based on PET Imaging Phase 3
Terminated NCT03718338 - Mechanisms of Metabolic and Hormone Action on Plaque Formation in Brain and Carotid Vessels in Patients With Prostate Adenocarcinoma
Terminated NCT02564549 - MRI-Based Active Surveillance to Avoid the Risks of Serial Biopsies in Men With Low-Risk Prostate Ca N/A