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Study details
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Treating Prostate Cancer That Has Come Back After Surgery With Apalutamide and Targeted Radiation Based on PET Imaging

ECOG-ACRIN Cancer Research Group
NCT IDNCT04423211ClinicalTrials.gov data as of Apr 2026
Phase

Phase 3

Target enrollment

804

Study length

about 12 years

Ages

18+

Sex

Male only

Locations

303 sites in AK, AR, AZ +29

What this study is about

This trial is testing whether adding apalutamide to standard prostate cancer treatment, along with targeted radiation based on PET scans for those whose cancer has spread outside the pelvis, improves outcomes compared to standard treatment alone. It involves men with prostate cancer that has returned after surgery and who have evidence of cancer spreading beyond the pelvic area.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Fluciclovine F18
  • 2.Quality-of-Life Assessment
  • 3.Questionnaire Administration
  • +3 more

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
OralInjection / IV

How treatment is administered

Treatment Assignment
Randomized (Open Label)

You are randomly assigned, but you will know your treatment.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Drug classes

apalutamide, degarelix, Diagnostic Agent (Positron Emitting Activity), Antineoplastic Agent [TC] (Gonadotropin Releasing Hormone Receptor Agonists), relugolix, triptorelin

Drug routes

oral (Oral Tablet), injection (Injection), injection, intramuscular

Endpoints

Primary: PFS prolongation in patients with PET-evidence of extrapelvic metastases, PFS prolongation in patients without PET-evidence of extrapelvic metastases, Progression-free survival (PFS), Quality of life (QOL)

Secondary: Change in FACT-P and Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue, Concordance of detection rate with the follow-up conventional imaging modalities (CIM), Event-free survival, Incidence of adverse events, Overall survival (OS), QOL Assessments at Progression

Procedures

imaging, radiation