An Efficacy and Safety Study of JNJ-56021927 (Apalutamide) in High-risk Prostate Cancer Subjects Receiving Primary Radiation Therapy: ATLAS
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ClinicalTrials.gov Identifier: NCT02531516 |
Recruitment Status :
Active, not recruiting
First Posted : August 24, 2015
Last Update Posted : April 22, 2022
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Condition or disease | Intervention/treatment | Phase |
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Prostatic Neoplasms | Drug: Apalutamide Drug: Bicalutamide Drug: Bicalutamide Placebo Drug: Apalutamide Placebo Drug: GnRH (agonist) Radiation: 74-80 Grays (units of radiation) | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 1503 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | 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 |
Actual Study Start Date : | November 19, 2015 |
Estimated Primary Completion Date : | December 30, 2022 |
Estimated Study Completion Date : | October 6, 2026 |

Arm | Intervention/treatment |
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Experimental: Apalutamide
Participants will receive apalutamide (240 mg), by mouth, once daily for overall 30 months, plus bicalutamide placebo, by mouth, once daily, for four months from randomization. All participants are treated with gonadotropin releasing hormone (GnRH) agonist for 30 months from randomization and radiation therapy to the prostate started at about 8 weeks after randomization.
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Drug: Apalutamide Drug: Bicalutamide Placebo Drug: GnRH (agonist) Radiation: 74-80 Grays (units of radiation) |
Active Comparator: Control group
Participants will receive apalutamide placebo, by mouth, once daily for overall 30 months, plus bicalutamide (50 mg), by mouth, once daily, for four months from randomization. All participants are treated with gonadotropin releasing hormone (GnRH) agonist for 30 months from randomization and radiation therapy to the prostate started at about 8 weeks after randomization.
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Drug: Bicalutamide Drug: Apalutamide Placebo Drug: GnRH (agonist) Radiation: 74-80 Grays (units of radiation) |
- Metastasis-free survival [ Time Frame: 84 Months ]
- Time to Local-regional Recurrence [ Time Frame: 84 Months ]
- Time to Castration-resistant Prostate Cancer (CRPC) [ Time Frame: 84 Months ]
- Time to Distant Metastasis [ Time Frame: 84 Months ]
- Overall Survival (OS) [ Time Frame: 84 Months ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | Male |
Accepts Healthy Volunteers: | No |
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
- Participants who are sexually active (even men with vasectomies) and willing to use a condom and agree not to donate sperm during the trial
- Signed, written, informed consent
- Be able to swallow whole study drug tablets
Exclusion Criteria: -
- Presence of distant metastasis, (clinical stage M1). Isolated pelvic nodal disease below the iliac bifurcation (clinical stage N1) is not an exclusion. Diagnosis of distant metastasis (clinical M stage; M0 versus M1a, M1b, M1c) and pelvic nodal disease (clinical N stage; N1 versus N0) will be assessed by central radiological review. Patients are considered eligible only if the central radiological review confirms clinical stage M0.
- Prior treatment with gonadotropin releasing hormone (GnRH) analogue or anti-androgen or both for >3 months prior to randomization
- Bilateral orchiectomy
- History of pelvic radiation
- Prior systemic (example [e.g.], chemotherapy) or local (e.g. radical prostatectomy, cryotherapy) treatment for prostate cancer
- History of seizure or any condition that may predispose to seizure (including, but not limited to prior stroke, transient ischemic attack or loss of consciousness <= 1 year prior to randomization; brain arteriovenous malformation; or intracranial masses such as schwannomas and meningiomas that are causing edema or mass effect)
- Prior treatment with enzalutamide, abiraterone acetate, orteronel, galeterone, ketoconazole, aminoglutethimide, estrogens, megestrol acetate, and progestational agents (including cyproterone acetate) for prostate cancer
- Prior treatment with radiopharmaceutical agents (e.g., strontium-89) or immunotherapy (e.g., sipuleucel-T) for prostate cancer
- Prior treatment with systemic glucocorticoids ≤4 weeks prior to randomization or is expected to require long-term use of corticosteroids during the study
- Use of 5-alpha reductase inhibitors (e.g., dutasteride, finasteride) <=4 weeks prior to randomization
- Use of any investigational agent <=4 weeks prior to randomization
- Current chronic use of opioid analgesics for >=3 weeks for oral or >7 days for non-oral formulations
- Major surgery <=4 weeks prior to randomization
- Current or prior treatment with anti-epileptic medications for the treatment of seizures
- Gastrointestinal conditions affecting absorption
- Known or suspected contraindications or hypersensitivity to apalutamide, bicalutamide or GnRH agonists or any of the components of the formulations
- Any condition for which, in the opinion of the investigator, participation would not be in the best interest of the subject

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02531516

Study Director: | Aragon Pharmaceuticals, Inc. Clinical Trial | Aragon Pharmaceuticals, Inc. |
Responsible Party: | Aragon Pharmaceuticals, Inc. |
ClinicalTrials.gov Identifier: | NCT02531516 |
Other Study ID Numbers: |
CR106935 56021927PCR3003 ( Other Identifier: Aragon Pharmaceuticals, Inc. ) 2015-003007-38 ( EudraCT Number ) |
First Posted: | August 24, 2015 Key Record Dates |
Last Update Posted: | April 22, 2022 |
Last Verified: | April 2022 |
Studies a U.S. FDA-regulated Device Product: | No |
Prostatic neoplasms Prostate Cancer High-Risk prostate cancer JNJ-56021927 Apalutamide |
ATLAS Radiation Long-term hormone therapy Localized or locally advanced prostate cancer Janssen |
Prostatic Neoplasms Genital Neoplasms, Male Urogenital Neoplasms Neoplasms by Site Neoplasms Prostatic Diseases |
Bicalutamide Androgen Antagonists Hormone Antagonists Hormones, Hormone Substitutes, and Hormone Antagonists Physiological Effects of Drugs Antineoplastic Agents |