Description
PRIMARY OBJECTIVE:
I. To improve progression-free survival (PFS) from 56% with current standard of care (chemoradiation followed by consolidative durvalumab) to 75% at one year with the proposed combination followed by consolidative durvalumab.
SECONDARY OBJECTIVES:
I. To determine overall survival with the proposed combination therapy. II. To assess the incidence of grade 3 or higher pneumonitis and other toxicities.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM I: Patients receive methoxyamine orally (PO) on day 1 of each cycle, pemetrexed intravenously (IV) over 10 minutes on day 1 of each cycle, and cisplatin IV over 60 minutes or carboplatin IV over 30 minutes on day 3 of each cycle. Beginning day 3, patients also undergo radiation therapy daily Monday-Friday. Treatment repeats every 21 days for 2 cycles in the absence of disease progression or unacceptable toxicity. Beginning 2-6 weeks after cycle 2, patients receive durvalumab IV over 60 minutes every 2 weeks or monthly for up to 1 year in the absence of disease progression or unacceptable toxicity. Patients also undergo computed tomography (CT) scan or magnetic resonance imaging (MRI) throughout the trial and fludeoxyglucose F-18 (FDG)-positron emission tomography (PET)/CT scan during screening and optionally on study.
ARM II: Patients receive pemetrexed IV over 10 minutes and cisplatin IV over 60 minutes or carboplatin IV over 30 minutes on day 1 of each cycle. Beginning day 1 of each cycle, patients also undergo radiation therapy daily Monday-Friday. Treatment repeats every 21 days for 2 cycles in the absence of disease progression or unacceptable toxicity. Beginning 2-6 weeks after cycle 2, patients receive durvalumab IV over 60 minutes every 2 weeks or monthly for up to 1 year in the absence of disease progression or unacceptable toxicity. Patients also undergo CT scan or MRI throughout the trial and FDG-PET/CT scan during screening and optionally on study.
After completion of study treatment, patients are followed up at 30 days, and then every 3 months for 2 years, followed by every 6 months for an additional 3 years.