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The Role of Highly Selective Androgen Receptor (AR) Targeted Therapy in Men With Biochemically Relapsed Hormone Sensitive Prostate Cancer

A

Aragon Pharmaceuticals

Status and phase

Completed
Phase 2

Conditions

Prostate Cancer

Treatments

Drug: ARN-509
Drug: LHRH Agonist

Study type

Interventional

Funder types

Industry

Identifiers

NCT01790126
CR103305
ARN-509-002

Details and patient eligibility

About

The proposed clinical trial will study the effects of 12 months of therapy with ARN-509 alone, or in combination with an LHRH agonist (LHRHa), each compared with LHRHa alone, in men with a rapidly rising serum PSA after prior definitive local therapy for prostate cancer. The endpoints selected reflect measurable short term effects of androgen deprivation therapy (ADT), including quality of life and several metabolic parameters. In addition, the relative effect of each treatment strategy on PSA suppression as well as testosterone recovery (and subsequent PSA progression) after 12 months of therapy will be evaluated.

Enrollment

90 patients

Sex

Male

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Key Inclusion Criteria:

  • Histologically proven adenocarcinoma of the prostate
  • Rising PSA after prior definitive local therapy (radical prostatectomy, external beam radiation, or brachytherapy) or combination of radical prostatectomy and radiotherapy with curative intent
  • PSA doubling time less than or equal to 12 months
  • No evidence of metastatic disease on imaging by whole body bone scan and computerized tomography (CT) or Magnetic Resonance Imaging (MRI) of the abdomen/pelvis within 6 weeks prior to randomization
  • Minimum PSA 1.0 ng/mL if prior radical prostatectomy +/- adjuvant or salvage radiation; nadir + 2.0 ng/mL if prior RT without prior radical prostatectomy
  • Prior androgen deprivation therapy (ADT) allowed if last dose was greater than (>) 6 months prior to randomization
  • No prior androgen deprivation therapy (ADT) or anti-androgen for biochemical relapse
  • Serum testosterone > 150 ng/dL at study entry
  • No history of seizures or medical conditions which may lower seizure threshold

Key Exclusion Criteria:

  • Use of 5-alpha reductase antagonist (i.e. finasteride, dutasteride) within 6 weeks prior to randomization
  • Use of antiandrogen (e.g. flutamide, nilutamide, bicalutamide) within 6 weeks prior to randomization
  • Prior bilateral orchiectomy
  • Prior treatment with ADT for biochemically relapsed prostate cancer. Prior ADT as neo-adjuvant, concurrent, and/or adjuvant treatment following salvage radiation therapy or prostatectomy for biochemically relapsed disease is allowed provided last dose of ADT is greater than (>) 6 months prior to randomization and the Screening serum testosterone level is greater than or equal to (≥)150 ng/dL
  • Use of systemic steroids at an equivalent dose of prednisone 5 mg/day or higher at randomization
  • Any history of seizures or medical condition which lowers seizure threshold

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

90 participants in 3 patient groups

ARN-509
Active Comparator group
Description:
ARN-509 Tablets, 240 mg/day administered orally
Treatment:
Drug: ARN-509
LHRH agonist + ARN-509
Active Comparator group
Description:
Choice of LHRHa per investigator discretion/site practice guidelines (e.g, Eligard®, Zoladex®, Lupron Depot®, Trelstar®) and ARN-509 Tablets, 240 mg/day administered orally
Treatment:
Drug: ARN-509
Drug: LHRH Agonist
LHRH agonist
Active Comparator group
Description:
Choice of LHRHa per investigator discretion/site practice guidelines (e.g., Eligard®, Zoladex®, Lupron Depot®, Trelstar®).
Treatment:
Drug: LHRH Agonist

Trial documents
2

Trial contacts and locations

5

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Data sourced from clinicaltrials.gov

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