Study of Opevesostat (MK-5684) Versus Alternative NHA in mCRPC (MK-5684-003)

Trial statusRecruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
AgeNot listed
SponsorMerck Sharp & Dohme LLC

About this trial

This is a phase 3, randomized, open-label study of opevesostat compared to alternative abiraterone acetate or enzalutamide in participants with metastatic castration-resistant prostate cancer (mCRPC) with respect to overall survival (OS) in participants with mCRPC previously treated with next-generation hormonal agent (NHA) and taxane-based chemotherapy. It is hypothesized that opevesostat is superior with respect to OS in androgen receptor ligand binding domain (AR LBD) mutation-negative and -positive participants.

Eligibility criteria

Qualifiers

Has histologically- or cytologically-confirmed adenocarcinoma of the prostate without small cell histology.

Has prostate cancer progression while on androgen deprivation therapy (or post bilateral orchiectomy) within 6 months before Screening

Has current evidence of distant metastatic disease (M1 disease) documented by either bone lesions on bone scan and/or soft tissue disease by computed tomography/magnetic resonance imaging (CT/MRI).

Has disease that progressed during or after treatment with 1 novel hormonal agent (NHA)

Disqualifiers

Has a gastrointestinal disorder that might affect absorption

Has a history of pituitary dysfunction

Has poorly controlled diabetes mellitus

Has clinically significant abnormal serum potassium or sodium level

Trial design

Treatments tested in this trial

  • Opevesostat
  • Abiraterone acetate
  • Enzalutamide
  • Hydrocortisone
  • Fludrocortisone acetate
  • Prednisone
  • Dexamethasone

Treatment groups

1,310 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Merck Sharp & Dohme LLC

Lead sponsor

Orion Corporation, Orion Pharma

Collaborator