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A Study of JNJ-56021927 (ARN-509) and Abiraterone Acetate in Participants With Metastatic Castration-Resistant Prostate Cancer

A

Aragon Pharmaceuticals

Status and phase

Active, not recruiting
Phase 1

Conditions

Metastatic Castration-Resistant Prostate Cancer
Prostatic Neoplasms

Treatments

Drug: Prednisone
Drug: Abiraterone Acetate
Drug: JNJ-56021927

Study type

Interventional

Funder types

Industry

Identifiers

NCT02123758
2014-001426-14 (EudraCT Number)
CR104358
56021927PCR1010 (Other Identifier)

Details and patient eligibility

About

The purpose of this study is to investigate potential drug-drug interaction (DDI) between JNJ-56021927 and abiraterone acetate and between JNJ-56021927 and prednisone, determine safety of the combination and evaluate in a descriptive manner the efficacy in these participants. It will also, potentially provide dosing recommendations for abiraterone acetate in future studies when combined with JNJ-56021927.

Full description

This is a multicenter, open-label (participants will know the identity of study drug received) study in participants with Metastatic Castration-Resistant Prostate Cancer (mCRPC). The study is a single sequence design (ie, all participants will take abiraterone acetate + prednisone [AAP] once daily on Days 1-7 of Treatment Cycle 1 and then proceed with combined daily intake of AAP+JNJ-56021927 from Treatment Cycle 1, Day 8 through to the end of treatment [ie, for up to an expected duration of approximately 18 months] and will be conducted as two cohorts (group of participant's). The study will consist of a 28-day screening phase to determine eligibility, an open-label treatment phase consisting of 28-day treatment cycles, and a 30-day follow-up phase for collection of adverse events (AE) after last dose of study drug. Participants will have blood samples collected during the study to evaluate pharmacokinetics, safety, and antitumor activity (PSA). Participant safety will also be monitored by the collection of adverse events. Imaging assessments for disease evaluation will be planned at discretion of the Investigator. Once all participants have completed study treatment up to Cycle 3 Day 1, a data cutoff is planned to evaluate the short term safety profile of the combination and to complete the PK analysis up to the cutoff date. All participants will continue on study (ie, to receive treatment) until disease progression, withdrawal of consent, lost to follow-up, or the occurrence of unacceptable toxicity. The end of the study is defined when all participants have completed treatment. Participant's safety will be monitored throughout the study.

Enrollment

57 patients

Sex

Male

Ages

18 to 99 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Eastern Cooperative Oncology Group (ECOG) performance status less than or equal to (<=) 2
  • Histologically or cytologically confirmed adenocarcinoma of the prostate
  • Documentation of metastatic disease
  • Prostate cancer progression
  • Surgically or medically castrated, with testosterone levels of less than (<) 50 nanogram per deciliter (ng/dL)
  • Adequate bone marrow and organ function

Exclusion criteria

  • Known brain metastases
  • Pathological finding consistent with small cell carcinoma of the prostate
  • Administration of an investigational agent within 4 weeks of Treatment Cycle 1, Day 1
  • Chemotherapy, or immunotherapy for the treatment of prostate cancer within 4 weeks of Treatment Cycle 1, Day 1
  • Therapies that must be discontinued or substituted prior to Treatment Cycle 1, Day 1 include the following: Medications known to lower the seizure threshold; Herbal and non-herbal products that may decrease prostate specific antigen (PSA) levels (that is, saw palmetto, pomegranates or pomegranate juice); Medications known to induce drug metabolizing enzymes such as dexamethasone, rifampicin, carbamazepine, phenytoin, phenobarbital, St. John's wort, etc.; and, potent inhibitors of CYP3A4 or CYP2C8

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Single Group Assignment

Masking

None (Open label)

57 participants in 2 patient groups

Cohort 1
Experimental group
Description:
Participants will receive abiraterone acetate (AA) along with prednisone on Day 1, Treatment Cycle 1 up to Day 7, Treatment Cycle 1; followed by combined intake of abiraterone acetate + prednisone (AAP) + JNJ-56021927 from Day 8, Treatment Cycle 1 up to the end of treatment (EoT) visit (ie, up to approximately 18 months). On Day 8, Treatment Cycle 2 participants will receive JNJ-56021927, 1 hour after intake of AA and prednisone. Breakfast will be offered approximately 30 minutes after intake of JNJ-56021927. Treatment cycles will be of 28 days.
Treatment:
Drug: JNJ-56021927
Drug: Abiraterone Acetate
Drug: Prednisone
Cohort 2
Experimental group
Description:
Participants will receive abiraterone acetate (AA) along with prednisone on Day 1, Treatment Cycle 1 up to Day 7, Treatment Cycle 1; followed by combined intake of AAP + JNJ-56021927 from Day 8, Treatment Cycle 1 up to the end of treatment (EoT) visit (ie, up to approximately 18 months). On Days 7 and 36, participants will receive AA and prednisone together. On Day 8, Treatment Cycle 2 participants will receive JNJ-56021927, 1 hour after intake of AAP. Treatment cycles will be of 28 days.
Treatment:
Drug: JNJ-56021927
Drug: Abiraterone Acetate
Drug: Prednisone

Trial contacts and locations

7

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Data sourced from clinicaltrials.gov

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