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A Study of JNJ-98768111 in Participants With Advanced Prostate Cancer

27 de agosto de 2026 atualizado por: Janssen Research & Development, LLC

A Phase 1 Trial of JNJ-98768111, an Antibody Drug Conjugate (ADC) Targeting Human Kallikrein-2 (KLK2) for Advanced Prostate Cancer

The purpose of Part 1 of this study is to find out how safe JNJ-98768111 is and the most suitable dose (recommended phase 2 dose [RP2D]) regimen(s) of JNJ-98768111. The purpose of Part 2 of this study is to find out how safe JNJ-98768111 is at the RP2D regimen(s) in participants with advanced prostate cancer (cancer of the prostate, a male reproductive gland found below the bladder, which has spread extensively to other parts of the body).

Visão geral do estudo

Status

Recrutamento

Condições

Intervenção / Tratamento

Tipo de estudo

Intervencional

Inscrição (Estimado)

100

Estágio

  • Fase 1

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Locais de estudo

  • Estados Unidos
    • Florida
      • Sarasota, Florida, Estados Unidos, 34232
        • Recrutamento
        • Florida Cancer Specialists & Research Institute
    • Michigan
      • Grand Rapids, Michigan, Estados Unidos, 49546
        • Recrutamento
        • START MidWest
    • Utah
      • West Valley City, Utah, Estados Unidos, 84119
        • Recrutamento
        • START Mountain Region

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

  • Adulto
  • Adulto mais velho

Aceita Voluntários Saudáveis

Não

Descrição

Inclusion criteria:

  • a. Histologically confirmed adenocarcinoma of the prostate. Adenocarcinoma with small cell or neuroendocrine features is permitted. b. Measurable or evaluable disease (metastatic prostate cancer) based on computed tomography (CT), magnetic resonance imaging (MRI), or bone scan. Prior treatment with at least 1 prior novel androgen receptor (AR)-targeted therapy. c. Serum prostate-specific antigen (PSA) value greater than or equal to (>=) 2 nanograms per milliliters (ng/mL). d. Prior orchiectomy or medical castration; or, for participants who have not undergone orchiectomy, must be receiving ongoing androgen deprivation therapy (ADT) with a gonadotropin releasing hormone (GnRH) analog (agonist or antagonist) prior to the first dose of trial drug and must continue this therapy throughout the treatment phase; e. Castrate levels of serum testosterone as defined in the protocol, prior to the first dose of trial intervention; f. Progressive metastatic disease following their most recent line of therapy. Disease progression will be defined by at least one of the following: PSA progression, radiographic progression according to response evaluation criteria in solid tumors (RECIST v1.1), or progressive bone disease according to prostate cancer working group 3 (PCWG3) criteria
  • Eastern cooperative oncology group (ECOG) performance status of 0 or 1
  • Agree to all of the following during the trial and for 6 months after the last dose of trial drug: a. Use a highly effective method of contraception; b. Wear a condom when engaging in any activity that allows for passage of ejaculate to another person; c. Not to donate sperm or freeze for future use for the purpose of reproduction; d. Not plan to father a child. In addition, the participant should be advised of the benefit for a female partner to use a highly effective method of contraception
  • Sign an informed consent form (ICF) indicating that the participant understands the purpose of, and procedures required for, the trial and is willing to participate in the trial

Exclusion criteria:

  • Active central nervous system (CNS) involvement
  • Toxicity related to prior anticancer therapy that has not returned to Grade less than or equal to (<=) 1 or baseline levels
  • External beam radiation therapy to soft tissue lesions within 14 days prior to start of trial intervention
  • History of clinically significant cardiovascular disease within 6 months prior to signing informed consent
  • History of solid organ or bone marrow transplantation

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: N / D
  • Modelo Intervencional: Atribuição sequencial
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: JNJ-98768111
Participants in Part 1 of the study will receive escalating doses of JNJ-98768111 to identify the putative recommended phase 2 dose (pRP2D) regimen(s). Participants in Part 2 of the study will receive JNJ-98768111 at the pRP2D regimen(s) determined in Part 1.
Medicamento: JNJ-98768111
JNJ-98768111 will be administered intravenously.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Number of Participants with Adverse Events (AEs)
Prazo: Up to approximately 2 years 7 months
An AE is any untoward medical occurrence in a clinical trial participant administered a pharmaceutical (investigational or non investigational) product. An AE does not necessarily have a causal relationship with the treatment.
Up to approximately 2 years 7 months
Part 1: Number of Participants with Dose-Limiting Toxicities (DLT)
Prazo: From first administration of trial intervention to the pre-dose assessment of the second cycle (up to approximately 2 years and 7 months)
High grade hematologic or non-hematologic toxicities with exceptions and/or toxicities leading to treatment discontinuation will be regarded as DLT. Other DLT criteria includes any related toxicity resulting in permanent treatment discontinuation or a delay in dose administration greater than (>)14 days and any death not clearly due to the underlying disease or non-trial intervention-related causes.
From first administration of trial intervention to the pre-dose assessment of the second cycle (up to approximately 2 years and 7 months)

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Maximum Observed Concentration (Cmax) of JNJ-98768111
Prazo: Up to approximately 2 years 7 months
Cmax of JNJ-98768111 will be reported.
Up to approximately 2 years 7 months
Trough Concentration (Ctrough) of JNJ-98768111
Prazo: Up to approximately 2 years 7 months
Ctrough of JNJ-98768111 will be reported.
Up to approximately 2 years 7 months
Time to Maximum Observed Concentration (Tmax) of JNJ-98768111
Prazo: Up to approximately 2 years 7 months
Tmax of JNJ-98768111 will be reported.
Up to approximately 2 years 7 months
Area Under the Concentration-Time Curve from Time 0 to End of Dosing Interval (AUC [0-tau]) of JNJ-98768111
Prazo: Up to approximately 2 years 7 months
AUC0-tau of JNJ-98768111 will be reported.
Up to approximately 2 years 7 months
Accumulation Ratio of JNJ-98768111
Prazo: Up to approximately 2 years 7 months
Accumulation Ratio (RA) is calculated as area under the plasma concentration-time curve from time zero to 24 hours (AUC [0-24]) value at steady state divided by AUC (0-24) value after first dose.
Up to approximately 2 years 7 months
Number of Participants With Anti-Drug Antibodies (ADAs) to JNJ-98768111
Prazo: Up to approximately 2 years 7 months
Number of participants with antibodies to JNJ-98768111 will be reported.
Up to approximately 2 years 7 months
Objective Response Rate (ORR)
Prazo: Up to approximately 2 years 7 months
ORR is defined as the percentage of participants with measurable disease who have a partial response (PR) or better without evidence of bone progression according to prostate cancer working group 3 (PCWG3).
Up to approximately 2 years 7 months
Radiographic Progression-Free Survival (rPFS)
Prazo: Up to approximately 2 years 7 months
rPFS is defined as the time from the date of first dose until the date of objective disease progression or death, whichever comes first.
Up to approximately 2 years 7 months
Prostate-Specific Antigen (PSA) Response
Prazo: Up to approximately 2 years 7 months
PSA response rate is defined as the percentage of participants with a decline in PSA of 50% or more from baseline which is sustained for greater than or equal to (>=) 3 weeks.
Up to approximately 2 years 7 months
Duration of Response (DOR)
Prazo: Up to approximately 2 years 7 months
DOR will be calculated among responders (PR or better) from the date of initial documentation of a response (PR or better) to the date of first documented evidence of progressive disease, as defined in the PCWG3, or death due to any cause, whichever occurs first.
Up to approximately 2 years 7 months

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Janssen Research & Development, LLC

Investigadores

  • Diretor de estudo: Janssen Research & Development LLC Clinical Trial, Janssen Research & Development, LLC

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

5 de agosto de 2026

Conclusão Primária (Estimado)

16 de março de 2029

Conclusão do estudo (Estimado)

16 de março de 2029

Datas de inscrição no estudo

Enviado pela primeira vez

31 de julho de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

31 de julho de 2026

Primeira postagem (Real)

5 de agosto de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

31 de agosto de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

27 de agosto de 2026

Última verificação

1 de agosto de 2026

Mais Informações

Termos relacionados a este estudo

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • 98768111PCR1001
  • 2026-525894-37-00 (Identificador de registro: EUCT number)

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

SIM

Descrição do plano IPD

The data sharing policy of Johnson & Johnson Innovative Medicine is available at innovativemedicine.jnj.com/our-innovation/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu.

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Sim

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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