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PARP Inhibitor

CJNJ-67652000 + Prednisone for Prostate Cancer

Phase 2
Recruiting
Led By Daniel S. Childs, MD
Research Sponsored by Mayo Clinic
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be older than 18 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up from registration to the earliest date of documentation of progression, assessed up to 2 years
Awards & highlights
No Placebo-Only Group

Summary

This trial tests a drug combo to treat metastatic prostate cancer with SPOP gene mutation. Drug combo stops cancer cells from repairing, prednisone reduces inflammation & immune response. May kill more tumor cells than either alone.

Who is the study for?
Men aged 18+ with advanced prostate cancer resistant to castration and spread beyond the original site, having specific SPOP gene mutations. They can have had one prior chemotherapy but must be in relatively good health (ECOG status 0-2) with adequate blood counts and organ function. Men must agree not to donate sperm and use contraception during the trial.
What is being tested?
The effectiveness of CJNJ-67652000 (a combination of niraparib/abiraterone acetate) alongside prednisone is being tested for treating metastatic castration-resistant prostate cancer with SPOP mutations. The study will assess if this drug combo kills more tumor cells compared to standard treatments.
What are the potential side effects?
Potential side effects include those typical of cancer therapies such as fatigue, digestive issues, changes in blood counts leading to increased infection risk, possible liver or kidney function changes, and reactions related to steroid use like increased blood sugar levels.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~from registration to the earliest date of documentation of progression, assessed up to 2 years
This trial's timeline: 3 weeks for screening, Varies for treatment, and from registration to the earliest date of documentation of progression, assessed up to 2 years for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Prostate specific antigen (PSA) response rate (PSA decline by >= 50% [PSA50])
Secondary study objectives
Incidence of adverse events
Radiologic progression-free survival (rPFS)
Time to progression

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

1Treatment groups
Experimental Treatment
Group I: Treatment (CJNJ-67652000 and prednisone)Experimental Treatment6 Interventions
Patients receive CJNJ-67652000 PO and prednisone PO on study. Patients also undergo blood specimen collection, CT or MRI, and bone scan throughout the trial.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Magnetic Resonance Imaging
2017
Completed Phase 3
~1160
Biospecimen Collection
2004
Completed Phase 3
~2020
Bone Scan
2015
Completed Phase 2
~50
Computed Tomography
2017
Completed Phase 2
~2740
Prednisone
2014
Completed Phase 4
~2500

Find a Location

Who is running the clinical trial?

Mayo ClinicLead Sponsor
3,343 Previous Clinical Trials
3,062,322 Total Patients Enrolled
27 Trials studying Prostate Cancer
6,973 Patients Enrolled for Prostate Cancer
Daniel S. Childs, MDPrincipal InvestigatorMayo Clinic in Rochester
Alan H BrycePrincipal InvestigatorMayo Clinic

Media Library

Niraparib (PARP Inhibitor) Clinical Trial Eligibility Overview. Trial Name: NCT05689021 — Phase 2
Prostate Cancer Research Study Groups: Treatment (CJNJ-67652000 and prednisone)
Prostate Cancer Clinical Trial 2023: Niraparib Highlights & Side Effects. Trial Name: NCT05689021 — Phase 2
Niraparib (PARP Inhibitor) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05689021 — Phase 2
~18 spots leftby Nov 2025