A Study of JNJ-87189401 Plus JNJ-78278343 for Advanced Prostate Cancer

Sponsor
Janssen Research & Development, LLC (Industry)
Overall Status
Not yet recruiting
CT.gov ID
NCT06095089
Collaborator
(none)
110
3
1
43.3
36.7
0.8

Study Details

Study Description

Brief Summary

The purpose of the study is to determine the recommended regimen for Phase 2 (RP2Rs) of combination of JNJ-87189401 with JNJ-78278343 (Part 1: dose escalation) and further evaluate the safety at RP2Rs (Part 2: dose expansion) in participants with advanced prostate cancer.

Condition or Disease Intervention/Treatment Phase
Phase 1

Study Design

Study Type:
Interventional
Anticipated Enrollment :
110 participants
Allocation:
N/A
Intervention Model:
Sequential Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Phase 1 Study of JNJ-87189401 (PSMA-CD28 Bispecific Antibody) Combined With JNJ-78278343 (KLK2-CD3 Bispecific Antibody) for Advanced Prostate Cancer
Anticipated Study Start Date :
Nov 10, 2023
Anticipated Primary Completion Date :
Jun 21, 2027
Anticipated Study Completion Date :
Jun 21, 2027

Arms and Interventions

Arm Intervention/Treatment
Experimental: Part 1 (Dose Escalation) and Part 2 (Dose Expansion)

Participants will receive JNJ-78278343+JNJ-87189401 escalated sequentially in Part 1 to select a recommended Phase 2 regimen (RP2R). Participants will receive the combination treatment at the RP2R in Part 2 (dose expansion).

Drug: JNJ-78278343
JNJ-78278343 will be administered.
Other Names:
  • KLK2-CD3
  • Drug: JNJ-87189401
    JNJ-87189401 will be administered.
    Other Names:
  • PSMAxCD28
  • Outcome Measures

    Primary Outcome Measures

    1. Part 1: Number of Participants With Dose Limiting Toxicity (DLT) [Up to 21 days after first combination dose of study drugs]

      DLTs are specific adverse events (AEs) and are defined as any of the following: high grade non-hematologic toxicity or hematologic toxicity.

    2. Part 1 and Part 2: Number of Participants with Adverse Events (AEs) by Severity [3 years 7 months]

      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. Severity will be graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0 with the exception of cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome events, which will be graded by American Society for Transplantation and Cellular Therapy (ASTCT) guidelines. 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.

    Secondary Outcome Measures

    1. Part 2: Serum Concentration of JNJ-87189401 [Up to 3 years 7 months]

      Serum samples will be analyzed to determine concentrations of JNJ-87189401.

    2. Number of Participants With Antibodies to JNJ-87189401 and JNJ-78278343 [Up to 3 years 7 months]

      Number of participants with antibodies to JNJ-87189401 and JNJ-78278343 will be reported.

    3. Objective Response Rate (ORR) [Up to 3 years 7 months]

      ORR is defined as the proportion of participants who have a partial response (PR) or better according to response evaluation criteria in solid tumors (RECIST) version 1.1 without evidence of bone progression according to Prostate Cancer Working Group 3 (PCWG3).

    4. Prostate Specific Antigen (PSA) Response Rate [Up to 3 years 7 months]

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

    5. Duration of Response (DOR) [Up to 3 years 7 months]

      DOR is defined for participants who achieved response (PR or better) as the time between the date of initial documentation of 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.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    Male
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Metastatic castration-resistant prostate cancer (mCRPC) as defined by Prostate Cancer Working Group 3 (PCWG3): Histologically confirmed adenocarcinoma of the prostate. Adenocarcinoma with small cell or neuroendocrine (NE) features is permitted. However, small cell carcinoma, carcinoid tumor, mixed NE carcinoma, or large cell NE carcinoma is disallowed

    • Measurable or evaluable disease per PCWG3 criteria; all participants must have a serum PSA value greater than or equal to (>=2) nanograms per milliliter (ng/mL) at time of screening

    • Prior orchiectomy or medical castration; participants who have not undergone orchiectomy, must be receiving ongoing androgen deprivation therapy with a gonadotropin releasing hormone (GnRH) analog (agonist or antagonist), prior to the first dose of study drug and must continue this therapy throughout the treatment phase

    • Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1

    Exclusion Criteria:
    • Active autoimmune disease within the 12 months prior to signing consent that requires systemic immunosuppressive medications (example, chronic corticosteroids, methotrexate, or tacrolimus)

    • Any of the following within 6 months prior to signature of informed consent: a. myocardial infarction, b. severe or unstable angina, c. clinically significant ventricular arrhythmias, d. congestive heart failure (New York Heart Association [NYHA] class II to IV), e. transient ischemic attack, and f. Cerebrovascular accident

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Centre Leon BĂ©rard Lyon France 69008
    2 Institut Gustave Roussy Villejuif France 94800
    3 Erasmus MC Rotterdam Netherlands 3015 GD

    Sponsors and Collaborators

    • Janssen Research & Development, LLC

    Investigators

    • Study Director: Janssen Research & Development, LLC Clinical Trial, Janssen Research & Development, LLC

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Janssen Research & Development, LLC
    ClinicalTrials.gov Identifier:
    NCT06095089
    Other Study ID Numbers:
    • CR109330
    • 87189401PCR1001
    First Posted:
    Oct 23, 2023
    Last Update Posted:
    Oct 23, 2023
    Last Verified:
    Oct 1, 2023
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No
    Product Manufactured in and Exported from the U.S.:
    Yes
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Oct 23, 2023