Oncology Cardiology / Cardiovascular Respiratory / COPD / Asthma Infectious Disease Gastroenterology Diabetes / Metabolic Neurology Rheumatology Women's Health Mental Health / Psychiatry Dermatology Rare Diseases Men's Health
Clinical Trial ● Currently Recruiting Phase I NCT06353386

Substudy 01A: Safety and Efficacy of Opevesostat (MK-5684)-Based Treatment Combinations or Opevesostat Alone in Participants With Metastatic Castration-resistant Prostate Cancer (mCRPC) (MK-5684-01A)

Substudy 01A: Safety and Efficacy of Opevesostat (MK-5684)-Based Treatment Combinations or Opevesostat Alone in Participants With Metastatic Castration-resistant Prostate Cancer (mCRPC) (MK-5684-01A) — Recruiting • Phase I •…

📅 25 Mar 2026 ⏱ 2 min read
Currently Recruiting
This trial is actively seeking participants in the UK. Discuss eligibility with your patient before referring.
Status
Currently Recruiting
Phase
Phase I
NCT ID
NCT06353386
Sponsor
Merck Sharp & Dohme LLC
Start
2024-05-20
ClinicaliQ Trial Snapshot
  • Substudy 01A: Safety and Efficacy of Opevesostat (MK-5684)-Based Treatment Combinations or Opevesostat Alone in Participants With Metastatic Castration-resistant Prostate Cancer (mCRPC) (MK-5684-01A) — Recruiting • Phase I • Men's Health • NCT06353386.
  • Substudy 01A is part of a larger research study that is testing experimental treatments for metastatic castration-resistant prostate cancer (mCRPC). The larger study is the umbrella study (U01). The goal of substudy 01A is to evaluate the safety and efficacy of opevesostat-based….
  • Sponsor: Merck Sharp & Dohme LLC.

Verify eligibility, endpoints and current status on the original source registry before acting on this summary.

Use This Page For
  • Quick orientation before opening the registry record.
  • Checking recruitment status, phase and sponsor at a glance.
  • Connecting this trial to nearby guidelines, Drug Science and education.
What This Trial Is Studying

Substudy 01A is part of a larger research study that is testing experimental treatments for metastatic castration-resistant prostate cancer (mCRPC). The larger study is the umbrella study (U01). The goal of substudy 01A is to evaluate the safety and efficacy of opevesostat-based treatment combinations, or as a single agent, in participants with mCRPC. This substudy will have two phases: a safety lead-in phase and an efficacy phase. The safety lead-in phase will be used to evaluate the safety and tolerability, and to establish a recommended Phase 2 dose (RP2D) for…

Eligibility Snapshot
  • : The main inclusion criteria include but are not limited to the following: * Histologically or cytologically confirmed diagnosis of adenocarcinoma of the prostate without small cell histology. * Prostate cancer progression and received androgen deprivation therapy (ADT) or post bilateral orchiectomy within 6 months before screening. * Evidence of disease progression from either, >4 weeks from last flutamide treatment, or >6 weeks from last bicalutamide or nilutamide treatment, if receiving first generation anti-androgen therapy as last treatment therapy. * Current evidence of metastatic disease. * Prior treatment with 1 to 2 novel hormonal agent(s) (NHA) for non-metastatic, or metastatic, hormone-sensitive prostate cancer or castration-resistant prostate cancer and have disease progression during or after treatment. * Treatment with bone resorptive therapy (including, but not limited to, bisphosphonate or denosumab) must have been on stable doses for >4 weeks before randomization. * Participants who experienced adverse events (AEs) due to previous anticancer therapies must have recovered to

Use the source registry for the full inclusion and exclusion criteria before discussing referral or enrolment.

Full Trial Details
View this trial on the source registry
Eligibility criteria, protocol, and results when available
View Trial ↗
Share: Twitter/X LinkedIn
Related

Related Clinical Intelligence

Guidelines, Drug Science, safety briefs and education connected to this trial area.

Guideline
Cemiplimab for treating recurrent or metastatic cervical cancer that has progressed on or after platinum-based chemotherapy
Oncology · 09 Jul 2026
Cemiplimab is recommended as a treatment option for patients with recurrent or metastatic cervical cancer only after progression on or following platinum-based…
View guideline →
Guideline
Lutetium-177 vipivotide tetraxetan for treating PSMA-positive hormone-relapsed metastatic prostate cancer after an anti-androgen but not a taxane (terminated evaluation)
Oncology · 16 Jul 2026
Evaluation terminated – NICE discontinued appraisal of lutetium-177 vipivotide tetraxetan; this agent is not recommended for routine NHS use and should not…
View guideline →
Guideline
Mirvetuximab soravtansine for treating folate receptor-alpha-positive platinum-resistant epithelial ovarian, fallopian tube or primary peritoneal cancer
Oncology · 24 Jun 2026
Mirvetuximab soravtansine is recommended for platinum-resistant epithelial ovarian, fallopian tube, or primary peritoneal cancer in patients with folate receptor-alpha (FRα) positivity—confirm FRα…
View guideline →
Guideline
Durvalumab with platinum-based chemotherapy, then with or without olaparib, for untreated advanced or recurrent endometrial cancer
Oncology · 09 Sep 2026
Durvalumab combined with platinum-based chemotherapy is the recommended first-line treatment for untreated advanced or recurrent endometrial cancer, with olaparib addition considered based…
View guideline →
Guideline
Tisotumab vedotin for treating recurrent or metastatic cervical cancer that has progressed on or after systemic treatment
Oncology · 11 Jun 2026
Tisotumab vedotin is recommended for cervical cancer patients with recurrent or metastatic disease that has progressed despite prior systemic treatment—consider this as…
View guideline →
Guideline
Cemiplimab with platinum-based chemotherapy for untreated advanced non-small-cell lung cancer
Oncology · 16 Jun 2026
First-line treatment option: Cemiplimab combined with platinum-based chemotherapy is recommended by NICE for patients with untreated advanced non-small-cell lung cancer (NSCLC), offering…
View guideline →