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NCT03902951PHASE2ACTIVE_NOT_RECRUITING

Antiandrogen Therapy and SBRT in Treating Patients With Recurrent, Metastatic Prostate Cancer

A Single-Arm, Open-Label, Phase II Study of Systemic and Tumor Directed Therapy for Recurrent Oligometastatic M1 Prostate Cancer

Sponsor: Jonsson Comprehensive Cancer Center + Janssen Inc.

No open prediction endpoints

Endpoints are classified and published by ProgramSignal analysts.

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Key Facts

Study type
INTERVENTIONAL
Conditions
Metastatic Prostate Adenocarcinoma, Prostate Adenocarcinoma With Focal Neuroendocrine Differentiation, Recurrent Prostate Carcinoma, Stage IVB Prostate Cancer AJCC v8
Interventions
Abiraterone Acetate, Apalutamide, Leuprolide Acetate, Quality-of-Life Assessment
Enrollment
28 participants
Primary completion
Jan 2027
Study completion
Jan 2028
First posted
Apr 2019
Last updated
Feb 2026

Primary Endpoints (CT.gov)

Percent of patients achieving a serum prostate specific antigen (PSA) of < 0.05 ng/mL

Time frame: Up to 6 months post treatment

Secondary Endpoints

Time to biochemical progression

Time to radiographic progression

Time to initiation of alternative antineoplastic therapy

Eligibility Criteria

Inclusion Criteria: * Confirmed diagnosis of prostate adenocarcinoma after radical prostatectomy (primary small cell carcinoma of the prostate is not allowed, however adenocarcinoma with neuroendocrine differentiation is allowed) * Presence of 1-5 visible metastases (by PSMA PET-CT) * At least one metastasis must be M1a-b * Visceral metastases are not allowed * Patients may have any number of pelvic nodal metastases (but largest must be \< 2 cm) * Metastases must be amenable to treatment with SBRT * Biopsy of one metastasis must be attempted, unless unsafe to perform * Patient must be fit to undergo SBRT to all visible sites of metastases, ADT * Total testosterone \> 150 ng/dL prior to ADT (optimal time to measure total testosterone is between 8 and 9 am) * Adequate performance status (Eastern Cooperative Oncology Group \[ECOG\] 0-1) * Hemoglobin \>= 9.0 g/dL, independent of transfusion and/or growth factors within 3 months prior to randomization * Platelet count \>= 100,00

Read full criteria on CT.gov →

✦ Analyst Commentary

Expert commentary on why this trial matters and what to watch for.

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Source

Open on ClinicalTrials.gov