Testing the Addition of Pembrolizumab, an Immunotherapy Cancer Drug to Olaparib Alone as Therapy for Patients With Pancreatic Cancer That Has Spread With Inherited BRCA Mutations

Conditions

• Metastatic Pancreatic Adenocarcinoma
• Stage IV Pancreatic Cancer AJCC v8

Eligibility Criteria

Sex

ALL

Age

18 Years - N/A

Healthy Volunteers

Not accepted

Interventions

• Biopsy Procedure — PROCEDURE
  Undergo tumor biopsy
• Biospecimen Collection — PROCEDURE
  Undergo blood sample collection
• Computed Tomography — PROCEDURE
  Undergo CT scan
• Magnetic Resonance Imaging — PROCEDURE
  Undergo MRI
• Olaparib — DRUG
  Given PO
• Pembrolizumab — BIOLOGICAL
  Given IV

Study Details

This phase II trial studies whether adding pembrolizumab to olaparib (standard of care) works better than olaparib alone in treating patients with pancreatic cancer with germline BRCA1 or BRCA2 mutations that has spread to other places in the body (metastatic). BRCA1 and BRCA2 are human genes that produce tumor suppressor proteins. These proteins help repair damaged deoxyribonucleic acid (DNA) and, therefore, play a role in ensuring the stability of each cell's genetic material. When either of these genes is mutated, or altered, such that its protein product is not made or does not function correctly, DNA damage may not be repaired properly. As a result, cells are more likely to develop additional genetic alterations that can lead to some types of cancer, including pancreatic cancer. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Olaparib is an inhibitor of PARP, a protein that helps repair damaged DNA. Blocking PARP may help keep tumor cells from repairing their damaged DNA, causing them to die. PARP inhibitors are a type of targeted therapy. The addition of pembrolizumab to the usual treatment of olaparib may help to shrink tumors in patients with metastatic pancreatic cancer with BRCA1 or BRCA2 mutations.

Key Dates

Start date

Feb 22, 2021

Status verified

Dec 2025

Primary completion

Oct 1, 2026

Completion

Oct 1, 2026

Study Design

Enrollment

88 participants (estimated)

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Arms

• Experimental: Arm A (olaparib, pembrolizumab)
  Patients receive olaparib PO BID on days 1-21 and pembrolizumab IV over 30 minutes on day 1 of each cycle. Treatment repeats every 21 days for up to 18 cycles in the absence of disease progression or unacceptable toxicity. Beginning in cycle 19, patients receive olaparib PO BID on days 1-42 and pembrolizumab IV over 30 minutes on day 1 of each cycle. Cycles repeat every 42 days in the absence of disease progression or unacceptable toxicity. Patients undergo CT scan or MRI, tumor biopsy and blood sample collection throughout the study.
• Active Comparator: Arm B (olaparib)
  Patients receive olaparib PO BID on days 1-21 of each cycle. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo CT scan or MRI, tumor biopsy and blood sample collection throughout the study.

Primary Outcome Measure

Progression-free survival (PFS) [ Time Frame: From date of registration to date of first documentation of progression or symptomatic deterioration (per Response Evaluation Criteria in Solid Tumors [RECIST] 1.1), or death due to any cause, assessed up to 3 years ]

Locations (535)

Find similar trials in Anchorage, AK

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