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Apalutamide With Radiotherapy and Androgen Deprivation Therapy in Prostate Cancer (ARN-509)

E

European Organisation for Research and Treatment of Cancer (EORTC)

Status and phase

Withdrawn
Phase 3

Conditions

Prostate Cancer

Treatments

Drug: Luteinising Hormone Releasing Hormone analog agonist (LHRHa)
Other: Radiation Therapy
Drug: Non-steroidal anti-androgen
Drug: Apalutamide

Study type

Interventional

Funder types

NETWORK

Identifiers

NCT03488810
EORTC-1531-ROG

Details and patient eligibility

About

The main objective of the trial to determine if the combination of apalutamide with 6 months of androgen deprivation therapy by LHRH agonists in patients with intermediate and limited high-risk, localized prostate cancer receiving primary radiation therapy (RT) results in an improvement of disease-free survival (DFS) evaluated by the treating physician, in comparison to the combination of radiation and androgen deprivation therapy without the addition of apalutamide.

Sex

Male

Ages

18 to 80 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Histologically confirmed diagnosis of prostate adenocarcinoma diagnosed by ultrasound guided biopsy of the prostate containing 10-12 cores showing no neuroendocrine component
  • Either of: Favorable intermediate risk (according to EAU risk groups): PSA 10-20 ng/mL, -or Gleason score 7 (3 +4) (ISUP Grade 2), or cT2b. Infavorable intermediate risk (according to EAU risk groups): PSA 10-20 ng/mL, -or Gleason score 7 (4+3) (ISUP Grade 3), or cT2b. Limited high risk : PSA > 20 ng/mL or Gleason score >7 (ISUP Grade 4/5)
  • M0 by standard imaging work-up
  • Scheduled to be treated with primary prostate RT
  • WHO Performance Status ≤ 2
  • No risk of urinary retention based on the International Prostate Symptom Score (IPSS) : IPSS < 20
  • Adequate liver function determined by the following: aspartate aminotransferase (AST), alanine aminotransferase (ALT), < 2.5 x upper limit of normal (ULN). Total bilirubin <1.5 x upper limit of normal (ULN)
  • Adequate renal function: creatinine level < 2 x ULN
  • Serum albumin ≥ 3.0 g/dL
  • Serum potassium ≥ 3.5 mmol/L
  • Hemoglobin ≥ 10.0 g/dL, independent of transfusion and/or growth factors within 3 months prior to randomization
  • Platelet count ≥ 100,000 x 109/L independent of transfusion and/or growth factors within 3 months prior to randomization
  • Be able to swallow whole study drug tablets

Exclusion criteria

  • cT2c, T3, T4 or pelvic lymph nodes involvement, as assessed by CT scan or MRI (cN1) or pelvic lymph node dissection (pN1)
  • Previous pelvic irradiation or radical prostatectomy.
  • Bilateral orchiectomy
  • Prior systemic (e.g., chemotherapy) or procedural (e.g., prostatectomy, cryotherapy) treatment for prostate cancer
  • Prior treatment with 5-alpha reductase inhibitors for benign prostatic hypertrophy not discontinued 4 weeks prior to randomization
  • Prior treatment with any LHRH agonist or antagonist, bicalutamide, flutamide or nilutamide, enzalutamide, abiraterone acetate, orteronel, galeterone, ketoconazole, aminoglutethimide, estrogens, megestrol acetate, and progestational agents for prostate cancer
  • Prior treatment with radiopharmaceutical agents (e.g., strontium-89) or immunotherapy for prostate cancer
  • Other malignancy except adequately treated basal cell carcinoma of the skin or other malignancy from which the patient has been cured for at least 5 years.
  • History of Ulcerative Colitis, Crohn's Disease, Ataxia Telangiectasia, systemic lupus erythematosus or Fanconi anemia
  • History of seizure or 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).
  • Medications known to lower the seizure thresholdmust be discontinued or substituted at least 4 weeks prior to study entry
  • Certain risk factors for abnormal heart rhythms/QT prolongation: torsade de pointes ventricular arrhythmias (e.g., heart failure, hypokalemia, or a family history of a long QT syndrome), a QT or corrected QT (QTc) interval > 450 ms at baseline
  • Uncontrolled hypertension (systolic BP ≥ 140 mmHg or diastolic BP ≥ 90 mmHg); patients with a history of hypertension are allowed provided blood pressure is controlled by anti-hypertensive treatment
  • Bilateral hip prostheses
  • 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 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
  • Known or suspected contraindications or hypersensitivity to apalutamide, bicalutamide or LHRHa agonists or any of the components of the formulations
  • Presence of any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule; those conditions should be discussed with the patient before registration in the trial

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

0 participants in 2 patient groups

Arm A: ADT + radiation therapy
Active Comparator group
Description:
Patient will receive 2 injections of a three-monthly LHRH agonist depot plus non-steroidal anti-androgen (rescue treatment) (e. g. flutamide, bicalutamide) PO daily for 4 weeks, started 2 weeks before the first LHRH agonist injection. All patients will receive standard fractionation radiation therapy (RT) between 0 and 12 weeks after first injection of LHRH agonist.
Treatment:
Drug: Non-steroidal anti-androgen
Drug: Luteinising Hormone Releasing Hormone analog agonist (LHRHa)
Other: Radiation Therapy
Arm B: ADT + radiation therapy + Apalutamide
Experimental group
Description:
Patients will receive 2 injections of a three-monthly LHRH agonist depot. Apalutamide treatment: 240 mg PO daily, started the same day as the first LHRHa injection, for 6 months. All patients will receive standard fractionation radiation therapy (RT) between 0 and 12 weeks after first injection of LHRH agonist.
Treatment:
Drug: Luteinising Hormone Releasing Hormone analog agonist (LHRHa)
Other: Radiation Therapy
Drug: Apalutamide

Trial contacts and locations

0

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Data sourced from clinicaltrials.gov

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