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NCT02531516PHASE3ACTIVE_NOT_RECRUITING

An Efficacy and Safety Study of JNJ-56021927 (Apalutamide) in High-risk Prostate Cancer Subjects Receiving Primary Radiation Therapy: ATLAS

ATLAS: A Randomized, Double-blind, Placebo-controlled Phase 3 Study of JNJ-56021927 in Subjects With High-risk, Localized or Locally Advanced Prostate Cancer Receiving Treatment With Primary Radiation Therapy

Sponsor: Aragon Pharmaceuticals, Inc.

No open prediction endpoints

Endpoints are classified and published by ProgramSignal analysts.

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Key Facts

Study type
INTERVENTIONAL
Conditions
Prostatic Neoplasms
Interventions
Apalutamide, Bicalutamide, Bicalutamide Placebo, Apalutamide Placebo
Enrollment
1,503 participants
Primary completion
Jun 2026
Study completion
Dec 2028
First posted
Aug 2015
Last updated
May 2026

Primary Endpoints (CT.gov)

Metastasis-Free Survival (MFS)

Time frame: 108 Months

Secondary Endpoints

Event-Free Survival (EFS) Based on Conventional Imaging Assessed By BICR

Time to PSA Progression

MFS Based on Conventional Imaging or Prostate-Specific Membrane Antigen (PSMA)-Positron Emission Tomography (PET) Imaging Assessed by BICR

Eligibility Criteria

Inclusion Criteria: * Age \>= 18 years * Indicated and planned to receive primary radiation therapy for prostate cancer * Histologically confirmed adenocarcinoma of an intact prostate, and 1 of the following at diagnosis: 1) Gleason score \>=8 and \>=cT2c, 2) Gleason score 7, PSA \>=20 nanogram per milliliters (ng/mL), and \>=cT2c * Charlson index (CCI) \<=3 * An Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) grade of 0 or 1 * Adequate organ function: (1) aspartate aminotransferase (AST), alanine aminotransferase (ALT), within normal limits (WNL), (2) serum creatinine less than (\<) 1.5 milligram/deciliter (mg/dL) (\<133 micromoles/Liter \[mcmol/L\]), (3) platelets greater than or equal to (\>=)140,000/microLiter (mcL), independent of transfusion and/or growth factors within 3 months prior to randomization, (4) Hemoglobin \>= 12.0 gram/deciliter (g/dL) (7.4 millimloes \[mmol\], independent of transfusion and/or growth factors within 3 months prior to randomization *

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✦ Analyst Commentary

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

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Source

Open on ClinicalTrials.gov