Study of HLD-0915 (JNJ-101556143) in Patients With Metastatic Prostate Cancer

Phase 1/2 Study of HLD-0915 (JNJ-101556143) in Patients With Metastatic Prostate Cancer

About This Trial

  • This clinical trial is testing an experimental pill to see how safe it is and how well it works against advanced prostate cancer.
  • It is designed for adult men whose cancer has spread to other areas of the body, including those whose disease has continued to grow despite prior hormone treatments.
  • To take part, you must be able to swallow pills and have adequate liver, kidney, and blood health, with no history of serious bleeding disorders.
  • Because this is an early-stage study, doctors will closely monitor participants to watch for side effects and determine the most effective dose.

More Information

  • Assessment of the safety and efficacy of HLD-0915 (JNJ-101556143) in patients with metastatic prostate cancer who have progressed on prior systemic therapies, with further evaluation in additional prostate cancer populations.

Who Can Enroll

  • Age Range: 18 years and older
  • Gender: Male
  • Who This Trial is For: This clinical trial is testing an experimental pill to see how safe it is and how well it works against advanced prostate cancer.

Study Details

  • Start Date: February 6, 2025
  • Lead Sponsor: Janssen Research & Development, LLC
Full Eligibility Criteria

Patients must meet the following criteria to be eligible study participation:

Inclusion Criteria

All Study Arms (Phase 1 Part 1 & 2, Phase 2 Part 1, Part 2A, 2B, 2C & 2D):

Males ≥ 18 years old Histological, pathological, and/or cytological confirmation of

prostate adenocarcinoma Adequate hematological, renal, and hepatic function. Able to

swallow oral medication

mCRPC Arms: (Phase 1 Part 1 & 2, Phase 2 Part 1): Prior orchiectomy or ongoing

androgen-deprivation therapy and a castrate level of serum testosterone Progressive mCRPC

defined as having demonstrated PSA progression on the prior regimen

SOAR Arm (Phase 2 Part 2A) mHSPC with distant metastatic disease based on conventional

imaging PSA ≥0.2 ng/mL, following treatment with next generation ARPI for at least 180

days and up to 365 days No evidence of radiographic or PSA progression while receiving

ARPI

mHSPC arms (Phase 2 Part 2B, 2C & 2D) serum testosterone >150ng/ml mHSPC with distant

metastatic disease based on conventional imaging and PSA >2.0 ng/mL

Exclusion Criteria

All arms (Phase 1 Part 1 & 2, Phase 2 Part 1, Part 2A, 2B, 2C & 2D):

Has experienced a recent major bleed or has a known bleeding disorder Tumors exhibiting

neuroendocrine or small cell carcinoma component by histopathology Receiving continuous

corticosteroids at prednisone-equivalent dose of >10 mg/day Prior or ongoing significant

medical condition

mCRPC arms: (Phase 1 Part 1 & 2, Phase 2 Part 1): Has received systemic anti-cancer

therapy or investigational drugs within 2 weeks prior to first dose of study drug with

certain exceptions requiring longer washout periods

SOAR arm (Phase 2 Part 2A) Has received any prior cytotoxic chemotherapy for prostate

cancer

mHSPC arms (Phase 2 Part 2B, 2C & 2D) regional pelvic lymph node disease only

Treatments

  • Drug: JNJ-101556143 Formulation 1
  • Drug: JNJ-101556143 Formulation 2
  • Drug: JNJ-101556143 Formulation 3
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