Introduction: The main objective of the current post hoc analysis was to compare patient-reported outcomes between crizotinib (N = 172) and chemotherapy subgroups (pemetrexed [N = 99] and docetaxel [N = 72]) in previously treated patients with advanced ALK-positive non-small-cell lung cancer, in PROFILE 1007 study (Pfizer; NCT0093283).
Methods: Patient-reported outcomes were assessed at baseline, day 1 of each cycle, and end of treatment. General health status was measured using the EuroQol-5D visual analog scale and health utility index scores were assessed using the EuroQol-5D descriptive system. Functioning, lung cancer symptoms, and global quality of life (QOL) were assessed using European Organisation for Research and Treatment of Cancer QLQ-C30 and the QLQ-LC13 lung cancer module. Repeated measures mixed-effects analyses compared overall scores and change from baseline scores, controlling for baseline scores.
Results: The overall mean EQ-5D health utility index scores (95% CI) on treatment were significantly greater (p < 0.05) for crizotinib (0.82 [0.79-0.85]) than for chemotherapy (0.73 [0.70-0.77]; 0.74 [0.70-0.79] for pemetrexed and 0.66 [0.58-0.74] for docetaxel). A significantly greater improvement from baseline was observed with crizotinib versus pemetrexed and versus docetaxel treatment groups for general health status, physical functioning, global QOL, dyspnea, fatigue, and pain. Improvement rates for fatigue, cough, pain, dyspnea, and global QOL were significantly greater on crizotinib compared with pemetrexed and docetaxel, respectively. Worsening rates for diarrhea and constipation were higher with crizotinib.
Conclusion: The benefits of crizotinib in improving symptoms and QOL are demonstrated regardless of whether the comparator is pemetrexed or docetaxel.
Trial registration: ClinicalTrials.gov NCT00093283.