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A Study of Risvutatug Rezetecan in Participants With Metastatic Castration-resistant Prostate Cancer (mCRPC)

28. August 2026 aktualisiert von: GlaxoSmithKline

A Phase 3 Randomized Study to Evaluate the Safety and Efficacy of Risvutatug Rezetecan, a B7-H3 Antibody Drug Conjugate (ADC) in Participants With Metastatic Castration-resistant Prostate Cancer (EMBOLD Prostate-302)

This study aims to evaluate how well risvutatug rezetecan (Ris-Rez) works in treating prostate cancer compared to best supportive/standard of care (BSC) which may include a hormone therapy with an androgen receptor pathway inhibitors (ARPI), by checking whether it makes cancers smaller or disappear completely, if it helps participants live longer, and/or feel better. The study is also assessing whether Ris-Rez is safe and tolerated well by participants and aims to provide a better understanding of the side effects of the drug.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Geschätzt)

684

Phase

  • Phase 3

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studieren Sie die Kontaktsicherung

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  • Participants ≥18 years of age
  • Has histologically or cytologically confirmed adenocarcinoma of the prostate.
  • Has an Eastern Cooperative Oncology Group (ECOG) PS of 0 or 1, with no deterioration in the 2 weeks before randomization.
  • Has a life expectancy of at least 4 months.
  • Has adequate organ function

Exclusion Criteria:

  • Pathological finding consistent with small cell, neuroendocrine carcinoma of the prostate, mixed histologies or any histology different from adenocarcinoma.
  • Participants with known mismatch repair deficient (dMMR)/MSI-H/TMB-H status and eligible for immune checkpoint inhibitor therapy,
  • Has a malignancy (except disease under study) that has progressed or required active treatment within the past 24 months except for basal cell or squamous cell carcinomas of the skin or in-situ carcinomas [e.g., breast, cervix] with no evidence of metastatic disease.
  • Has undergone major surgery, including local prostate intervention (except prostate biopsy), within 28 days before the date of randomization,
  • Has clinically significant bleeding symptoms or significant bleeding tendency within 1 month prior to the first dose.
  • Known active infectious diseases requiring systemic treatment or known human immunodeficiency virus (HIV)
  • Has untreated brain or central nervous system (CNS) metastases or brain/CNS metastases that have progressed
  • Has received systemic immunosuppressive agents within 30 days prior to first dose of study intervention (or requires long-term administration [30 days or longer]).
  • Has received any prior therapy with an ADC with a topoisomerase 1 inhibitor (TOPO1-inhibitor) payload

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Risvutatug rezetecan (Ris-Rez)
Participants will receive Risvutatug rezetecan (Ris-Rez).
Risvutatug rezetecan (Ris-Rez) will be administered.
Aktiver Komparator: Standard of Care
Participants will receive physician's choice of best supportive/standard of care (BSC), with or without androgen receptor pathway inhibitors (ARPI) Enzalutamide, Abiraterone (with Prednisone or Prednisolone).
Abirateron wird verabreicht.
Enzalutamid wird verabreicht.
Prednisone will be administered along with Abiraterone.
Prednisolone will be administered along with Abiraterone.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Radiographic Progression-Free Survival (rPFS) per PCWG3 by BICR
Zeitfenster: Up to approximately 169 weeks
rPFS is defined as time from randomization to the first documented radiographic disease progression, per Prostate cancer clinical trials working group 3 (PCWG3) as assessed by Blinded Independent Central Review (BICR) or death due to any cause, whichever occurs first.
Up to approximately 169 weeks
Overall Survival (OS)
Zeitfenster: Up to approximately 169 weeks
OS is defined as the time from randomization to date of death by any cause.
Up to approximately 169 weeks

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Time to Pain Progression (TTPP)
Zeitfenster: Up to approximately 169 weeks
Up to approximately 169 weeks
rPFS by Investigator assessment
Zeitfenster: Up to approximately 169 weeks
rPFS is defined as time from randomization to the first documented radiographic disease progression per PCWG3 as assessed by Investigator or death due to any cause, whichever occurs first.
Up to approximately 169 weeks
Confirmed Objective Response Rate (cORR)
Zeitfenster: Up to approximately 169 weeks
cORR is defined as the percentage of participants with a confirmed Complete Response (CR) or Partial Response (PR) per PCWG3 by BICR.
Up to approximately 169 weeks
Duration of Response (DoR)
Zeitfenster: Up to approximately 169 weeks
DoR defined as the time from the date of first confirmed response (CR or PR) to the date of first documented PD per PCWG3 as assessed by BICR or death due to any cause, whichever comes first.
Up to approximately 169 weeks
Time to Prostate-specific antigen (PSA) progression
Zeitfenster: Up to approximately 169 weeks
Time to PSA progression is defined as the time from randomization to PSA progression according to PCWG3 criteria.
Up to approximately 169 weeks
Prostate-specific antigen 50 (PSA50) response
Zeitfenster: Up to approximately 169 weeks
PSA50 is defined as the proportion of participants having a ≥50% post-baseline PSA reduction from baseline with a consecutive confirmation assessment at least 3 weeks later.
Up to approximately 169 weeks
Time to first Symptomatic Skeletal-Related Event (SSRE)
Zeitfenster: Up to approximately 169 weeks

Time to first SSRE is defined as the time from randomization to first occurrence of any of the following symptomatic skeletal-related events:

  • Use of EBRT to prevent or relieve skeletal symptoms .
  • New symptomatic pathological bone fracture (vertebral or non-vertebral).
  • New symptomatic spinal cord compression.
  • Tumor-related orthopedic surgical intervention
Up to approximately 169 weeks
Number of participants with adverse event (AEs), serious adverse event (SAEs), Adverse event of special interest (AESIs) by severity
Zeitfenster: Up to approximately 169 weeks
Up to approximately 169 weeks
Number of participants with AEs leading to dose modifications or study intervention discontinuation
Zeitfenster: Up to approximately 169 weeks
Up to approximately 169 weeks
Serum concentration of Ris-Rez (conjugated antibody and payload)
Zeitfenster: Up to approximately 84 days
Up to approximately 84 days
Number of participants with Antidrug antibody (ADA) and Neutralizing Antibody (NAb) against Ris-Rez
Zeitfenster: Up to approximately 169 weeks
Up to approximately 169 weeks
Titers of ADA against Ris-Rez
Zeitfenster: Up to approximately 169 weeks
Up to approximately 169 weeks
Participant-reported experience on study treatment
Zeitfenster: Up to approximately 169 weeks
Number of participants who reported their experience with study treatment using validated questionnaires will be measured
Up to approximately 169 weeks

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

22. September 2026

Primärer Abschluss (Geschätzt)

19. Dezember 2029

Studienabschluss (Geschätzt)

19. Dezember 2029

Studienanmeldedaten

Zuerst eingereicht

28. August 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

28. August 2026

Zuerst gepostet (Tatsächlich)

3. September 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

3. September 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

28. August 2026

Zuletzt verifiziert

1. August 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 300145
  • 2026-525558-13-00 (Ctis)

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

JA

Beschreibung des IPD-Plans

Study Sponsor will assess requests from qualified researchers for anonymized individual patient-level data and related study documents. Data sharing is subject to certain criteria, conditions, and exceptions. For further information, refer to https://www.gsk-studyregister.com/gsk-patient-level-data-sharing-july2025.pdf

IPD-Sharing-Zeitrahmen

Anonymized IPD will be made available within 6 months of publication of primary, key secondary and safety results for studies in product with approved indication(s) or asset(s) with development terminated across all indications.

IPD-Sharing-Zugriffskriterien

Anonymized IPD is shared with researchers whose proposals are approved by an Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months, but an extension may be granted, when justified, for up to 6 months.

Art der unterstützenden IPD-Freigabeinformationen

  • STUDIENPROTOKOLL
  • SAFT
  • ICF
  • CSR

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .