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

27 augustus 2026 bijgewerkt door: 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).

Studie Overzicht

Toestand

Werving

Conditie

Interventie / Behandeling

Studietype

Ingrijpend

Inschrijving (Geschat)

100

Fase

  • Fase 1

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

  • Verenigde Staten
    • Florida
      • Sarasota, Florida, Verenigde Staten, 34232
        • Werving
        • Florida Cancer Specialists & Research Institute
    • Michigan
      • Grand Rapids, Michigan, Verenigde Staten, 49546
        • Werving
        • START MidWest
    • Utah
      • West Valley City, Utah, Verenigde Staten, 84119
        • Werving
        • START Mountain Region

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Nee

Beschrijving

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

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: NVT
  • Interventioneel model: Sequentiële toewijzing
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: 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.
Geneesmiddel: JNJ-98768111
JNJ-98768111 will be administered intravenously.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Number of Participants with Adverse Events (AEs)
Tijdsspanne: 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)
Tijdsspanne: 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)

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Maximum Observed Concentration (Cmax) of JNJ-98768111
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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)
Tijdsspanne: 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)
Tijdsspanne: 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
Tijdsspanne: 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)
Tijdsspanne: 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

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Janssen Research & Development, LLC

Onderzoekers

  • Studie directeur: Janssen Research & Development LLC Clinical Trial, Janssen Research & Development, LLC

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

5 augustus 2026

Primaire voltooiing (Geschat)

16 maart 2029

Studie voltooiing (Geschat)

16 maart 2029

Studieregistratiedata

Eerst ingediend

31 juli 2026

Eerst ingediend dat voldeed aan de QC-criteria

31 juli 2026

Eerst geplaatst (Werkelijk)

5 augustus 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

31 augustus 2026

Laatste update ingediend die voldeed aan QC-criteria

27 augustus 2026

Laatst geverifieerd

1 augustus 2026

Meer informatie

Termen gerelateerd aan deze studie

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • 98768111PCR1001
  • 2026-525894-37-00 (Register-ID: EUCT number)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

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.

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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