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NCT06863272PHASE1, PHASE2RECRUITING

A Clinical Study of Ifinatamab Deruxtecan Based Treatment Combinations or as Monotherapy to Treat Metastatic Castrate Resistant Prostate Cancer (mCRPC) (MK-2400-01A/IDeate-Prostate02)

MK-2400-01A Substudy: A Phase 1/2, Open-label Umbrella Substudy of MK-2400-U01 Master Protocol to Evaluate the Safety and Efficacy of Ifinatamab Deruxtecan-based Treatment Combinations or Ifinatamab Deruxtecan Alone in Participants With Metastatic Castration-resistant Prostate Cancer (mCRPC) (IDeate-Prostate02)

Sponsor: Merck Sharp & Dohme LLC + Daiichi Sankyo

No open prediction endpoints

Endpoints are classified and published by ProgramSignal analysts.

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Key Facts

Study type
INTERVENTIONAL
Conditions
Castration-Resistant Prostatic Cancer, Metastasis
Interventions
Docetaxel, Ifinatamab Deruxtecan, MK-5684, Abiraterone
Enrollment
360 participants
Primary completion
Apr 2031
Study completion
Apr 2031
First posted
Mar 2025
Last updated
May 2026

Primary Endpoints (CT.gov)

Efficacy Phase: Number of Participants Who Experience One or More Dose-Limiting Toxicities (DLTs) - Combination Arms Only

Time frame: Up to approximately 21 days

Efficacy Phase: Number of Participants Who Experienced an Adverse Event (AE)

Time frame: Up to approximately 54 months

Efficacy Phase: Number of Participants Who Discontinued Study Intervention Due to an AE

Time frame: Up to approximately 24 months

Efficacy Phase: Prostate-Specific Antigen (PSA) response rate

Time frame: Up to approximately 54 months

Secondary Endpoints

Objective Response Rate (ORR)

Radiographic Progression-Free Survival (rPFS)

Overall Survival (OS)

Eligibility Criteria

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * Has histologically- or cytologically-confirmed adenocarcinoma of the prostate without small cell histology * Has prostate cancer progression while on androgen deprivation therapy (ADT) (or post bilateral orchiectomy) within 6 months before Screening * Has current evidence of metastatic disease * Has received prior treatment with 1 or 2 androgen receptor pathway inhibitors (ARPIs) and progressed during or after treatment * Participants receiving bone resorptive therapy (including, but not limited to bisphosphonate or denosumab) must have been on stable doses for ≥4 weeks before allocation/randomization * An Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 assessed within 10 days before allocation/randomization * Has prior treatment with poly-ADP-ribose polymerase inhibitors (PARPi) if indicated by local approved regimen or were deemed ineligible to receive PARPi by the

Read full criteria on CT.gov →

✦ Analyst Commentary

Expert commentary on why this trial matters and what to watch for.

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Source

Open on ClinicalTrials.gov