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Taking people in South KoreaPhase 3

Tests pasritamig with docetaxel against docetaxel alone in advanced prostate cancer

Tests pasritamig plus docetaxel in men with spreading prostate cancer.

Plain-language title generated from the registry record
Registry title: A Study of Pasritamig With Docetaxel Versus Docetaxel in Participants With Metastatic Castration-Resistant Prostate Cancer

Key facts

Where
Goyang-si and Seoul, South KoreaSee the 5 sites
Phase
Phase 3

Where in South Korea

  • National Cancer CenterGoyang-si, South KoreaTaking people
  • Asan Medical CenterSeoul, South KoreaTaking people
  • Samsung Medical CenterSeoul, South KoreaTaking people
  • Severance Hospital, Yonsei University Health SystemSeoul, South KoreaTaking people
  • The Catholic University of Korea Seoul St Marys HospitalSeoul, South KoreaTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
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Trial details

Who runs it
Janssen Research & Development, LLC
Trial code
NCT07225946EU 2025-522713-29-00
Record updated
3 November 2026
Original description
The purpose of this study is to find out whether treatment with pasritamig and docetaxel prolongs radiographic progression free survival (rPFS) (the length of time from start of treatment until disease worsens as determined by scans or death due to any cause) when compared to treatment with docetaxel in participants with metastatic castrate-resistant prostate cancer (mCRPC; a cancer of prostate, a male reproductive gland found below the bladder, that grows despite low levels of male hormones).Read full original descriptionShow less

A Phase 3 Randomized, Open-label Study of Pasritamig (JNJ-78278343), a T-cell-engaging Agent Targeting Human Kallikrein 2, With Docetaxel Versus Docetaxel for Metastatic Castration-resistant Prostate Cancer

The purpose of this study is to find out whether treatment with pasritamig and docetaxel prolongs radiographic progression free survival (rPFS) (the length of time from start of treatment until disease worsens as determined by scans or death due to any cause) when compared to treatment with docetaxel in participants with metastatic castrate-resistant prostate cancer (mCRPC; a cancer of prostate, a male reproductive gland found below the bladder, that grows despite low levels of male hormones).

Inclusion: Have histologically confirmed adenocarcinoma of the prostate; Have disease that is metastatic at the time of screening by computed tomography (CT) or magnetic resonance imaging (MRI) and 99m\^Tc bone scan as determined by the investigator; Participants must receive ongoing androgen deprivation therapy (ADT) with a gonadotropin releasing hormone (GnRH) analog throughout the treatment or have had prior bilateral orchiectomy, and have serum testosterone less than or equal to (<=) 50 nanogram per deciliter (ng/dL) (<= 1.73 nanomoles per Liter [nmol/L]) at screening; Have progressed by PSA or CT/MRI or 99m\^Tc bone scan on at least 1 novel androgen receptor pathway inhibition (ARPI) but no more than 2 different ARPI for any stage of disease. Must have discontinued ARPI before randomization into the study; Have an eastern cooperative oncology group (ECOG) performance status of 0 to 1.

Exclusion: Participants with known breast cancer gene 1/2 (BRCA 1/2) mutations (germline or somatic) who have not received treatment with a poly (ADP-ribose) polymerase (PARP) inhibitor, unless not available or contraindicated; Prior or concurrent second malignancy (other than the disease under study); Received cytotoxic chemotherapy for prostate cancer in any setting; Received prior treatment with human kallikrein 2 (KLK-2) directed therapies; Known history of either brain or leptomeningeal prostate cancer metastases.

ClinicalTrials.gov NCT07225946 · EU CTIS 2025-522713-29-00