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NCT04557059PHASE3ACTIVE_NOT_RECRUITING

A Study of Adding Apalutamide to Radiotherapy and LHRH Agonist in High-Risk Patients With Hormone-Sensitive Prostate Cancer

A Randomized, Controlled, Multicenter, Open-label Study to Investigate the Efficacy and Safety of Adding Apalutamide to Radiotherapy and LHRH Agonist in High-Risk Patients With Hormone-Sensitive Prostate Cancer, Assessed by PSMA-PET With an Observational Cohort

Sponsor: Janssen Pharmaceutica N.V., Belgium

No open prediction endpoints

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Key Facts

Study type
INTERVENTIONAL
Conditions
Prostatic Neoplasms
Interventions
Radiotherapy, LHRHa, Apalutamide
Enrollment
692 participants
Primary completion
Aug 2029
Study completion
Sep 2031
First posted
Sep 2020
Last updated
May 2026

Primary Endpoints (CT.gov)

Prostate specific Membrane Antigen-Positron Emission Tomography (PSMA-PET) Metastatic Progression-free Survival (ppMPFS)

Time frame: Up to 9 years

Secondary Endpoints

Time to Prostate-Specific Antigen (PSA) Progression

PSA Response Rate

PSA Levels at Week 26

Eligibility Criteria

Inclusion Criteria: * Histologically confirmed adenocarcinoma of the prostate * Previously treated with radical prostatectomy with or without lymph node dissection and either: a) for biochemical recurrence after radical prostatectomy (RP): any post-operative prostate-specific antigen (PSA) measurement of less than (\<) 0.1 nanogram/milliliter (ng/mL) within 12 months after RP and without any PSA greater than and equal to (\>=) 0.1 ng/mL within the 4 to 8-week period after RP or b) for persistent PSA after RP: PSA \>=0.1 ng/mL within the 4 to 8-week period after RP, confirmed by additional measurement at least 3 weeks later * Be able to swallow whole the study drug tablets or follow the instructions for admixing with apple sauce * Results of the Prostate specific membrane antigen-positron emission tomography (PSMA-PET) at screening as determined by blinded independent, central review (BICR), must be: PSMA-PET-negative for any prostate cancer lesions (that is, no loco-regional lesion an

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