Hypotheses: Short-term - Targeted therapy with erlotinib or crizotinib plus PART (Personalized Adaptive Radiation Therapy) will be safe and will yield favorable outcomes in patients with stage III, EGFR (Epidermal Growth Factor Receptor) + or ALK (Anaplastic Lymphoma Kinase) + NSCLC (Non-Small Cell Lung Cancer). Long-term - In patients with stage III NSCLC harboring driver mutations, treatment with relevant targeted agents plus PART will improve both local-regional and systemic tumor control resulting in improved survival relative to standard chemoradiotherapy.
The proposed trial is a pilot study that will accrue 30 patients with inoperable stage IIIA/B NSCLC harboring either an EGFR mutation (n=20) or an ALK rearrangement (n=10). Patients with EGFR+ tumors will be treated with erlotinib 150 mg orally QD; patients with ALK+ tumors will be treated with crizotinib 250 mg orally BID. Treatment consists of six weeks of concurrent PART plus erlotinib or crizotinib, followed by erlotinib or crizotinib for a total of 1 year. All patients will be treated with response-driven PART with dose intensified to the active (FDG-avid) region based on a mid-treatment FDG-PET/CT scan while maintaining dose limits for organs-at-risk. The primary endpoints will be PFS and OS. Primary analyses will be performed separately for ALK+ and EGFR+ patients. The secondary endpoint of treatment-related toxicity will focus on pneumonitis and esophagitis with a strict stopping rule in place. Current standard therapy affords suboptimal outcomes for patients with locally advanced NSCLC due to both locoregional and distant recurrences. Since targeted therapy is more effective than chemotherapy in patients with relevant driver mutations, the best way to significantly improve outcomes in this subgroup of patients is to optimize systemic therapy with targeted agents while improving local control with PET-adapted, high-dose RT.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
All patients will be treated with response-driven PET-adaptive RT. The radiation dose will be delivered in greater than or equal to 2.2 Gy per daily fraction to FDG-PET/CT-guided target volumes with the treatment duration limited to 30 fractions and total radiation dose limited to 66-80.4 Gy.
150 mg once daily
250 mg twice daily
University of Michigan Comprehensive Cancer Center
Ann Arbor, Michigan, United States
Time to Progression From the Initiation of Study Treatment For ALK + and EGFR + Patients
Time frame: 5 Years
Time to Death From Initiation of Study Treatment For ALK + and EGFR + Patients
Time frame: 5 Years
The Number of Patients Experiencing Pneumonitis and Esophagitis
Time frame: 5 Years
The Number of Patients Experiencing Grade 3 or Higher Toxicities
Time frame: 5 Years
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