RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Celecoxib may stop the growth of tumor cells by stopping blood flow to the tumor and may make the tumor cells more sensitive to radiation therapy. PURPOSE: Phase I/II trial to study the effectiveness of combining celecoxib with radiation therapy in treating patients who have locally advanced non-small cell lung cancer.
OBJECTIVES: * Determine the maximum tolerated dose and the recommended phase II dose of concurrent celecoxib and limited-field radiotherapy in intermediate-prognosis patients with locally advanced non-small cell lung cancer. * Determine the efficacy and toxicity of this regimen in these patients. * Determine how the predictors of mortality in the general population (i.e., comorbid conditions, functional status, quality of life, and psychological status) influence prognosis, toxicity, and outcomes of therapy in patients treated with this regimen. * Correlate circulating levels of vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), and interleukin-8 (IL8) with survival in patients treated with this regimen. * Correlate circulating levels of interleukin-1 (IL1), interleukin-6 (IL6), and transforming growth factor-beta (TGFB) with pulmonary toxicity in patients treated with this regimen. OUTLINE: This is a phase I dose-escalation study of celecoxib followed by a phase II, multicenter study. * Phase I: Patients receive oral celecoxib twice daily. Beginning on day 6, patients undergo thoracic radiotherapy 5 days a week for 3-6.5 weeks . Patients continue to receive celecoxib for up to 2 years in the absence of disease progression or unacceptable toxicity. * Phase II: If fewer than 3 of the first 6 patients experience dose-limiting toxicity, then the dose of celecoxib is escalated for all patients in the study, including those in the first cohort. Quality of life is assessed at baseline and at 3, 6, and 12 months after start of therapy. Patients are followed every 3 months for 1 year, every 6 months for 2 years, and then annually thereafter. PROJECTED ACCRUAL: A total of 6-12 patients will be accrued for the phase I portion of this study and a total of 116 patients will be accrued for the phase II portion of this study within 25 months.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
21
Maximum Tolerated Dose (MTD) of Celecoxib Combined With Radiation Therapy (RT)
Patients were followed for at least 90 days from start of RT and carefully evaluated with respect to treatment morbidity. A dose limiting toxicity (DLT) was defined as grade 3 or 4 nonhematologic (excluding nausea, vomiting, and alopecia) and grade 4 hematologic toxicities. Six patients were to be accrued at each dose level. If no more than three of the six patients experienced a DLT then that dose level was considered acceptable and dose escalation occurred by accruing six more patients at the next dose level. Otherwise, the preceding dose level, if any, would be declared the MTD. The MTD would be used for the Phase II arm. At a given dose, the probability of halting dose escalation when the true toxicity is 50% or higher is at least 66% (power). In addition, if the true DLT rate is instead 20%, there will still be a 10% probability of halting dose escalation at a given dose level (type I error). Rating scale: 0 = not the MTD, 1 = MTD
Time frame: Start of treatment to 90 days
Overall Survival
Because only 21 patients (18 analyzable) out of 128 planned were accrued on this study, all analyzable patients were combined to report overall survival. The original study design planned for a comparison to a historical control, but due to the small number of patients, survival time is only reported, not tested.
Time frame: From randomization to date of death or last follow-up. Analysis occurs after all patients have been potentially followed for 12 months.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Memorial Hospital Cancer Center
Colorado Springs, Colorado, United States
University of Florida Shands Cancer Center
Gainesville, Florida, United States
Baptist Cancer Institute - Jacksonville
Jacksonville, Florida, United States
University of Miami Sylvester Comprehensive Cancer Center
Miami, Florida, United States
Regional Radiation Oncology Center at Rome
Rome, Georgia, United States
Ingalls Cancer Care Center at Ingalls Memorial Hospital
Harvey, Illinois, United States
Indiana University Cancer Center
Indianapolis, Indiana, United States
Wendt Regional Cancer Center at Finley Hospital
Dubuque, Iowa, United States
Markey Cancer Center at University of Kentucky Chandler Medical Center
Lexington, Kentucky, United States
West Michigan Cancer Center
Kalamazoo, Michigan, United States
...and 34 more locations