« Back to Search Results Notify Me When Search is Updated

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)

ClinicalTrials.gov Identifier: NCT06863272 (view full study on clinicaltrials.gov)
Condition:  Castration-Resistant Prostatic Cancer, Metastasis
Status:  Not yet recruiting


Official Title: 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)

The purpose of this substudy is to assess the efficacy and safety of ifinatamab deruxtecan (I-DXd), given alone or with other treatments in participants with metastatic castration-resistant prostate cancer (mCRPC). The goals of this study are to learn about: • The safety of the study treatment and if people tolerate it. • A safe dose level of I-DXd that can be used with other treatments. • Participant levels of prostate specific antigen (PSA) during treatment.

Interventional
Phase 1/Phase 2
360
June 2025
February 2030
February 2030
18 years and older
All
No


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 investigator

Exclusion Criteria:

The main exclusion criteria include but are not limited to the following:

  • History of (non-infectious) interstitial lung disease (ILD)/pneumonitis that required steroids, or has current ILD/pneumonitis or suspected ILD/pneumonitis
  • Clinically severe pulmonary compromise resulting from intercurrent pulmonary illnesses
  • Uncontrolled or significant cardiovascular disease
  • History of pituitary dysfunction
  • Poorly controlled diabetes mellitus
  • History or current condition of adrenal insufficiency (eg, Addison’s disease)
  • Has received prior treatment with taxane-based chemotherapy agent for metastatic castration-resistant prostate cancer (mCRPC).
  • Chronic steroid treatment (dose of >10 mg daily prednisone equivalent), except for low-dose inhaled steroids (for asthma/chronic obstructive pulmonary disease), topical steroids (for mild skin conditions), or intra-articular steroid injections
  • Received prior radiotherapy within 2 weeks of start of study intervention, or has radiation-related toxicities, requiring corticosteroids
  • Known additional malignancy that is progressing or has required active treatment within the past 3 years
  • Known active central nervous system (CNS) metastases and/or carcinomatous meningitis
  • Active autoimmune disease that has required systemic treatment in the past 2 years
  • History of allogeneic tissue/solid organ transplant

No Contacts or Locations in US/Canada Provided

No Study Results Posted



Find a Study in US or Canada

Advanced Search    Search All Studies

RELATED INFORMATION





Copyright © 2025 · Merck & Co., Inc., Rahway, NJ, USA, and its affiliates. All rights reserved. · This site is intended only for residents of the United States.
Cookie Preferences  Privacy  Terms of Use  Consumer Health Data Privacy Policy  Your Privacy Choices   Accessibility  U.S. Corporate Site