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Prostatic NeoplasmsPhase 1NCT05441501

A Study of JNJ-80038114 in Participants With Advanced Stage Prostate Cancer

A Phase 1 study testing JNJ-80038114 in people with Prostatic Neoplasms, run by Janssen Research & Development, LLC at 6 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine recommended phase 2 dose(s) (RP2Ds) of JNJ-80038114 in Part 1 (dose escalation) and to determine the safety at the RP2D(s) in Part 2 (dose expansion). Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostatic Neoplasms
What is being tested?
JNJ-80038114
Could I receive a placebo?
No, everyone receives an active treatment
How many people
39 participants
Where
6 sitesin 2 countries
Study dates
15 Nov 2022to 31 Mar 2024
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Metastatic castration-resistant prostate cancer (mCRPC) with confirmed adenocarcinoma of the prostate as defined by Prostate Cancer Working Group 3 (PCWG3)
  • Measurable or evaluable disease
  • At least 1 prior treatment for mCRPC
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Adequate organ functions as defined by certain laboratory values
  • Must sign an informed consent form (ICF)
  • Participants must agree to use a highly effective form of birth control as guided by the study doctor

Who cannot join

  • Concurrent anticancer therapy
  • Severe or long-lasting side effects related to prior anticancer therapy
  • Known allergies to JNJ-80038114 or its excipients
  • Brain metastasis or known seizure history
  • Significant infections or lung, heart or other medical conditions

Trial locations and contacts

6 sites in 2 countries.

6 sites in 2 countries

United States3 sites
  • University Of Minnesota

    Minneapolis, Minnesota, 55455

  • Sarah Cannon Research Institute

    Nashville, Tennessee, 37203

  • Sidney Kimmel Cancer Center - Jefferson Health

    Philadelphia, Pennsylvania, 19107

Other trials in United States

United Kingdom3 sites
  • University College London Hospitals NHSFT

    London, NW1 2PG

  • The Christie NHS Foundation Trust Christie Hospital

    Manchester, M20 4BX

  • Royal Marsden Hospital

    Sutton, SM2 5PT

Other trials in United Kingdom

About this study

Official title: A Phase 1 Study of JNJ-80038114, a T-Cell Redirecting Agent Targeting Prostate Specific Membrane Antigen (PSMA), for Advanced Stage Prostate Cancer

The purpose of this study is to determine recommended phase 2 dose(s) (RP2Ds) of JNJ-80038114 in Part 1 (dose escalation) and to determine the safety at the RP2D(s) in Part 2 (dose expansion).

Being tested
JNJ-80038114
Keywords
Prostate cancer
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • JNJ-80038114Drug

    JNJ-80038114 will be administered.

Study groups in NCT05441501
Study groupRoleWhat they receive
Part 1: Dose EscalationExperimentalParticipants will receive JNJ-80038114. The dose levels will be escalated based on the dose limiting toxicities (DLTs) evaluation by the study evaluation team (SET).
Receives: Drug: JNJ-80038114
Part 2: Dose ExpansionExperimentalParticipants will receive JNJ-80038114 at the recommended Phase 2 dose (RP2D) determined in Part 1.
Receives: Drug: JNJ-80038114

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Parts 1 and 2: Number of Participants With Adverse Events (AEs)

    An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/ biological agent under study.

    Measured: Up to 2 Years 6 Months

  2. Parts 1 and 2: Number of Participants With AEs by Severity

    Severity will be graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5.0. Severity scale ranges from Grade 1 (Mild) to Grade 5 (Death). Grade 1= Mild, Grade 2= Moderate, Grade 3= Severe, Grade 4= Life-threatening and Grade 5= Death related to adverse event. Cytokine release syndrome (CRS) and associated neurologic toxicity events will be graded according to the American Society for Transplantation and Cellular Therapy (ASTCT) guidelines.

    Measured: Up to 2 Years 6 Months

  3. Part 1: Number of Participants With Dose-Limiting Toxicity (DLT)

    Number of participants with DLT will be reported. The DLTs are specific adverse events and are defined as any of the following: high grade non-hematologic toxicity, or hematologic toxicity.

    Measured: Up to 2 Years 6 Months

Secondary outcomes (7)
  1. Serum Concentration of JNJ-80038114

    Serum concentration of JNJ-80038114 will be determined.

    Measured: Up to 2 Years 6 Months

  2. Systemic Cytokine Concentrations

    Cytokine concentrations will be determined for biomarker assessment.

    Measured: Up to 2 Years 6 Months

  3. Serum Prostate Specific Antigen (PSA) Concentration

    Serum PSA concentration will be determined.

    Measured: Up to 2 Years 6 Months

  4. Number of Participants With Antibodies to JNJ-80038114

    Serum samples will be analyzed for the detection of antibodies to JNJ-80038114 using a validated assay method.

    Measured: Up to 2 Years 6 Months

  5. Objective Response Rate (ORR)

    ORR is defined as the percentage of participants who have a partial response (PR) or better according to Prostate Cancer Working Group 3 (PCWG3) response criteria.

    Measured: Up to 2 Years 6 Months

  6. PSA Response Rate

    PSA response rate is defined as the percentage of participants with a confirmed decline in PSA of 50 percent (%) or more from baseline.

    Measured: Up to 2 Years 6 Months

  7. Duration of Response (DOR)

    DOR is defined as the duration 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 response criteria, or death due to any cause, whichever occurs first.

    Measured: Up to 2 Years 6 Months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Jul 2022
  2. Study start15 Nov 2022
  3. Primary completion26 Mar 2024
  4. Study completion31 Mar 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
39 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05441501
Sponsor's protocol ID
CR109209
Other IDs
80038114PCR1001
Status last verified
Mar 2025
First submitted
28 Jun 2022
Last updated
4 Mar 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: The data sharing policy of the Janssen Pharmaceutical Companies of Johnson \& Johnson is available at www.janssen.com/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

Publications

  • Hudson A, Jayaram A, Garmezy B, Zorko NA, Zarrabi KK, Mathews L, Rupnow B, Li M, Ghosh D, Urtishak K, Francis P, Wang SC, Attiyeh E, de Bono J. A phase 1, first-in-human, dose escalation study of JNJ-80038114, a PSMAxCD3 bispecific antibody, in participants with metastatic castration-resistant prostate cancer. Cancer Chemother Pharmacol. 2026 Jan 6;96(1):5. doi: 10.1007/s00280-025-04846-w.

    PubMed 41493473

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing JNJ-80038114 in people with Prostatic Neoplasms, run by Janssen Research & Development, LLC at 6 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in United States, United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Parts 1 and 2: Number of Participants With Adverse Events (AEs) (time frame: Up to 2 Years 6 Months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05441501, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Mar 2025.

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