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Clinical Trial Summary

This phase II trial investigates how well the addition of olaparib following completion of surgery and chemotherapy works in treating patients with pancreatic cancer that has been surgically removed (resected) and has a pathogenic mutation in BRCA1, BRCA2, or PALB2. Olaparib is an inhibitor of PARP, an enzyme that helps repair deoxyribonucleic acid (DNA) when it becomes damaged. Blocking PARP may help keep tumor cells from repairing their damaged DNA, causing them to die. PARP inhibitors are a type of targeted therapy.


Clinical Trial Description

PRIMARY OBJECTIVE: I. To determine the relapse-free survival (RFS)-benefit from the addition of a maintenance olaparib following completion of chemotherapy in patients with resected pancreatic carcinoma and a pathogenic germline or somatic mutation in BRCA1, BRCA2 or PALB2. SECONDARY OBJECTIVES: I. To evaluate RFS in patients with olaparib after perioperative chemotherapy compared to those treated with perioperative therapy alone among patients who received prior platinum-based perioperative chemotherapy. II. To evaluate overall survival (OS) in patients treated with olaparib after adjuvant chemotherapy compared to those treated with adjuvant treatment alone. III. To analyze the efficacy of olaparib after chemotherapy in patients with a pathogenic germline BRCA or PALB2 mutation compared to those with a somatic mutation. IV. To analyze survival differences between patients who received neoadjuvant or perioperative chemotherapy compared to those who received adjuvant therapy alone. V. To analyze RFS and OS differences in those who received =< 3 months of perioperative platinum chemotherapy compared to those who received > 3 months of perioperative platinum chemotherapy. VI. To analyze RFS and OS differences in those who received any platinum-based perioperative chemotherapy compared to no-platinum based perioperative chemotherapy. EXPLORATORY OBJECTIVES: I. To analyze RFS and OS differences in patients who had R1 versus (vs) R0 resections, lymph node positivity at resection, and/or elevated or rising CA 19-9 or CEA at time of study enrollment in the post-operative setting. II. To analyze RFS and OS differences with those who had resectable disease at diagnosis compared to those who did not. III. To analyze RFS and OS differences in those with gBRCA1 mutations compared to those with gBRCA2 mutations and gPALB2 mutations. OUTLINE: Patients are randomized to 1 of 2 arms. ARM I: Patients receive olaparib orally (PO) twice daily (BID) on days 1-28. Treatment repeats every 28 days for 12 cycles in the absence of disease progression or unacceptable toxicity. ARM II: Patients receive placebo PO BID on days 1-28. Treatment repeats every 28 days for 12 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 30 days, every 4 months for year 1, then every 6 months for years 2-10. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04858334
Study type Interventional
Source National Cancer Institute (NCI)
Contact
Status Not yet recruiting
Phase Phase 2
Start date April 30, 2021
Completion date November 30, 2024

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