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Completed

NCT Number: NCT04179396

Study of Oral Rucaparib With Other Anticancer Agents in Metastatic Castration Resistant Prostate Cancer Patients (RAMP)

Assess the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of Oral Rucaparib in Combination with Other Anticancer Agents in Patients with Metastatic Castration Resistant Prostate Cancer

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Key information

Age range

18 year and older

Sex eligibility

Male

Study type

Interventional

Phase

Phase 1

Primary location

Piedmont Cancer Institute, P.C., Atlanta, Georgia, United States

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Have signed an Institutional Review Board (IRB)/Independent Ethics Committee (IEC) approved informed consent form prior to any study-specific evaluation
  • Be ≥18 yrs of age at the time the informed consent form is signed
  • Be either AR-directed therapy-naive or have received 1-2 lines of AR-directed therapy in the castration-resistant setting.
  • Adequate organ function
  • ECOG 0 or 1
  • Have a histologically or cytologically confirmed adenocarcinoma or poorly differentiated carcinoma of the prostate that is metastatic
  • Be surgically or medically castrated, with serum testosterone levels of ≤ 50 ng/dL (1.73 nM)
  • Have disease progression after initiation of most recent therapy

Exclusion criteria

  • Active second malignancy, with the exception of curatively treated non melanoma skin cancer, carcinoma in situ, or superficial bladder cancer
  • Have received greater than 2 previous lines of chemotherapy for mCRPC
  • Prior treatment with any PARP inhibitor
  • Symptomatic and/or untreated central nervous system metastases
  • Pre-existing duodenal stent and/or any gastrointestinal disorder or defect that would, in the opinion of the investigator, interfere with absorption of study drug
  • Spinal cord compression, symptomatic and/or untreated central nervous system (CNS) metastases or leptomeningeal disease. Patients with asymptomatic previously treated CNS metastases are eligible provided they have been clinically stable for at least 4 weeks
  • Any clinically significant cardiovascular disease
  • Taking any concomitant medications or herbs that could interfere or interact with the study drug

Treatment and study plan

Rucaparib

Drug

Oral rucaparib will be administered twice daily

Other names: Rubraca, CO-338

Enzalutamide

Drug

Enzalutamide will be administered once daily.

Enrollment into Arm A will be prioritized over Arm B until the objectives for Arm A have been achieved.

Other names: Xtandi

Abiraterone

Drug

Abiraterone will be administered once daily with prednisone

Other names: Zytiga

Primary outcomes

  1. Evaluate the PK of Rucaparib in Combination With Other Anticancer Agents for mCRPC.

    Time frame: 1 week rucaparib only run-in and 1 cycle (28 days) of combination treatment

    Cmin of rucaparib and its metabolite. Rucaparib only run-in Cmin includes run-in D6, D7 and Cycle 1 D1. All of these samples were collected following rucaparib monotherapy. Rucaparib and other anticancer agent Combination Cmin includes Cycle 1 (D8, D15, and D22).

  2. Incidence of Dose-Limiting Toxicities (DLTs) in Participants Taking Rucaparib in Combination With Other Anticancer Agents for mCRPC

    Time frame: First 2 cycles of rucaparib combination treatment (56 days) for Arm A

    A DLT is defined according to criteria specified in the protocol and assessed by the investigator, based on toxicity grade (according to the NCI CTCAE v5.0), clinical significance, and possible relationship to the study drug combination. The toxicity cannot be a recognized adverse effect of enzalutamide, abiraterone or prednisone/prednisolone and/or attributable to mCRPC or mCRPC-related processes under investigation.

Secondary outcomes

  1. Preliminary Overall Confirmed Response Rate (ORR) of Rucaparib in Combination With Other Anticancer Agents for mCRPC.

    Time frame: 2 years to complete

    The ORR is defined as the proportion of patients with a documented and confirmed best overall response of complete response (CR) or partial response (PR) per mRECIST v1.1 as assessed by the investigator using local standardized radiological methods e.g. CT, MRI, etc. A complete response (CR) is defined as complete disappearance of all target and non-target lesions together with normalization of tumor biomarkers. A partial response (PR) represents at least a 30% decrease in the sum of the longest diameter of target lesions, taking as reference the baseline sum LD with non-progression of non-target lesions and no new lesions. Overall Response (OR) = CR + PR. A confirmed CR or PR is a response that is maintained and documented on a subsequent tumor assessment at least 4 weeks after initial response. PSA response per PCWG3 criteria is a confirmed PSA response (≥ 50% decrease from baseline) as reflected by local laboratory measurements.

Sponsors and collaborators

Lead sponsor

pharmaand GmbH

Industry

Registry information

Official study title

A Phase 1b, Open-label, Parallel Arm Study to Assess the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of Oral Rucaparib in Combination With Other Anticancer Agents in Patients With Metastatic Castration Resistant Prostate Cancer

Acronym: RAMP

Important dates

Study start
2019
Primary completion
2021
Study completion
2023
First posted
Nov 27, 2019
Registry last updated
Jun 29, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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