A Multicenter Phase Ib Trial to Measure [18F]-Fluorodeoxyglucose Uptake by Positron Emission Tomography in Stage IIIB and IV Non-Small Cell Lung Cancer Before and After Chemotherapy With Gemcitabine and Cisplatin or Carboplatin
Endpoint Classification: Pharmacokinetics/Dynamics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic
Metabolic Response Conversion Rate Between 3 and 6 Weeks After Starting Chemotherapy at a Threshold of a 20% Decrease in SUVmean
Metabolic response conversion rate is the number of participants initially classified as non-metabolic responders relative to baseline at week 3 after starting chemotherapy, who are then, relative to week 3, reclassified as metabolic responders at week 6 after starting chemotherapy, based on a pre-specified threshold of a 20% decrease in mean standardized uptake value (SUVmean) of [18F]-Fluorodeoxyglucose (FDG). The SUVmean was calculated by summing the radioactivity from volumes of interest within each tumor and normalizing for the injected dose and lean body mass.
Weeks 3 and 6 following chemotherapy
Spain: Ministry of Health