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A Study to Compare the Effect of ASP3550 With Goserelin in Patients With Prostate Cancer

Phase 3
Completed
Conditions
Prostate Cancer
Interventions
Registration Number
NCT01964170
Lead Sponsor
Astellas Pharma Inc
Brief Summary

To compare the efficacy and safety of ASP3550 to goserelin acetate in patients with prostate cancer.

Detailed Description

This study consists of two parts. The purpose of PART 1 is to test non-inferiority of ASP3550 to goserelin acetate with respect to the cumulative castration rate in terms of serum testosterone when ASP3550 or goserelin acetate is administered for one-year in patients with prostate cancer.

The patients assigned to receive ASP3550 and completed the treatment in PART 1 are eligible for the treatment in PART 2, and will receive ASP3550 maintenance dose subcutaneously for additional term. The long-term safety, efficacy and PK of the continued ASP3550 treatment will be assessed in PART 2.

Recruitment & Eligibility

Status
COMPLETED
Sex
Male
Target Recruitment
234
Inclusion Criteria
  • Male patient with histologically confirmed prostate cancer (adenocarcinoma).
  • Patient in whom endocrine treatment is indicated. Patient having undergoing prostatectomy or radiotherapy with curative intention and has a rising serum PSA (PSA ≥ 2 ng/mL at screening) may be included.
  • Has a serum testosterone level above 2.2 ng/mL at screening.
  • Has an Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) score of 0 to 2 at screening.
  • Has a serum PSA ≥ 2 ng/mL at screening.
  • Has a life expectancy of at least 12 months.
Exclusion Criteria
  • Previous or present endocrine treatment for prostate cancer. Example: surgical castration, GnRH agonists, GnRH antagonists, antiandrogens or oestrogens, and 5α-reductase inhibitors.
  • Received a 5α-reductase inhibitor within 25 weeks preceding screening.
  • Is a candidate for curative therapy, i.e., radical prostatectomy or radiotherapy within 12 months.
  • Has concurrent or a history of poorly controlled severe asthma, anaphylactic reactions, severe urticaria or angioedema.
  • Has hypersensitivity towards mannitol.
  • Has a marked prolongation of QT/QTc interval (two consecutive increases to >450 ms in QTc interval at retest) at screening.
  • Has concurrent or a history of a disease (heart failure, hypokalemia, a family history of QT prolongation syndrome, etc.) that may induce Torsade de Pointes.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
ASP3550 PART 1 and PART 2degarelixPart 1 for 1 year treatment and Part 2 for an extended period of treatment
GoserelinGoserelinpart 1 for 1 year treatment
Primary Outcome Measures
NameTimeMethod
Cumulative castration rate of treatment in terms of serum testosterone levelUp to one year of the treatment
Secondary Outcome Measures
NameTimeMethod
Proportion of castrated subjects in terms of serum testosterone levelBaseline and Days 3, 7, and 28
Safety assessed by the incidence of adverse eventsup to the end of treatment. approximately for 2 years
Changes in serum levels of prostate-specific antigen (PSA) over timeUp to one year of the treatment
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