Health-related quality of life in the randomised KEYNOTE-002 study of pembrolizumab versus chemotherapy in patients with ipilimumab-refractory melanoma

Publication date: November 2016
Source:European Journal of Cancer, Volume 67
Author(s): Dirk Schadendorf, Reinhard Dummer, Axel Hauschild, Caroline Robert, Omid Hamid, Adil Daud, Alfons van den Eertwegh, Lee Cranmer, Steven O'Day, Igor Puzanov, Jacob Schachter, Christian Blank, April Salama, Carmen Loquai, Janice M. Mehnert, Darcy Hille, Scot Ebbinghaus, S. Peter Kang, Wei Zhou, Antoni Ribas
BackgroundIn KEYNOTE-002, pembrolizumab significantly prolonged progression-free survival and was associated with a better safety profile compared with chemotherapy in patients with advanced melanoma that progressed after ipilimumab. We present health-related quality of life (HRQoL) outcomes from KEYNOTE-002.MethodsPatients were randomly assigned 1:1:1 to pembrolizumab 2 or 10 mg/kg every 3 weeks (Q3W) or investigator-choice chemotherapy. HRQoL was assessed using the European Organisation for Research and Treatment of Cancer Quality-of-Life Questionnaire-Core 30 instrument. A constrained longitudinal data analysis model was implemented to assess between-arm differences in HRQoL scores. The study is registered with ClinicalTrials.gov, number NCT01704287.ResultsOf the 540 patients enrolled, 520 were included in the HRQoL analysis. Baseline global health status (GHS) was similar across treatment arms. Compliance rates at week 12 were 76.6% (n = 108), 82.3% (n = 121), and 86.4% (n = 133) for the control, pembrolizumab 2 mg/kg Q3W, and pembrolizumab 10 mg/kg Q3W arms, respectively. From baseline to week 12, GHS/HRQoL scores were maintained to a higher degree in the pembrolizumab arms compared with the chemotherapy arm (decrease of −2.6 for each pembrolizumab arm versus −9.1 for chemotherapy; P = 0.01 for each pembrolizumab arm versus chemotherapy). Fewer patients treated with pembrolizumab experienced deterioration in GHS at week 12 (31.8% for pembrolizumab 2 mg/kg, 26.6% for 10 mg/kg, and 38.3% for chemotherapy), with similar trends observed for the individual functioning and symptoms scales.ConclusionsHRQoL was better maintained with pembrolizumab than with chemotherapy in KEYNOTE-002, supporting the use of pembrolizumab in patients with ipilimumab-refractory melanoma.



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