• Goldy C George, Eucharia C Iwuanyanwu, Karen O Anderson, Alizeh Yusuf, Ralph G Zinner, Sarina A Piha-Paul, Apostolia M Tsimberidou, Aung Naing, Siqing Fu, Filip Janku, Vivek Subbiah, Charles S Cleeland, Tito R Mendoza, and David S Hong.
• Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas. ggeorge2@mdanderson.org.
• Cancer. 2016 Nov 15; 122 (21): 3401-3409.

BackgroundLimited data exist about sleep quality for patients with advanced cancer in phase 1 clinical trials. Poor sleep quality is often not captured as an adverse event, and its association with fatigue, one of the most frequently reported adverse events, is not documented routinely. This article describes sleep quality and its relation with fatigue, symptom burden, and mood in patients recruited from an early-phase clinic for targeted therapy.MethodsSleep, fatigue, symptom burden, and mood were assessed with the Pittsburgh Sleep Quality Index (PSQI), the Brief Fatigue Inventory, the MD Anderson Symptom Inventory (MDASI), and the Brief Profile of Mood States, respectively; the Eastern Cooperative Oncology Group (ECOG) performance status (PS) was determined from medical records.ResultsThe sample (n = 256) was 51.2% female, 90% had an ECOG PS of 0 or 1, and the mean age was 58 ± 0.8 years. Poor sleepers (global PSQI score > 5) constituted 64% of the sample. In separate multiple regression models, poor sleepers had higher levels of fatigue (P < .001), symptom burden (P < .001), and overall mood disturbance (P < .001) than good sleepers. Also, compared with good sleepers, poor sleepers had greater fatigue-related and symptom-related interference with daily activities (all P values < .001). The MDASI disturbed-sleep item correlated well with the global PSQI score (Pearson's r = 0.679, P < .001), and this suggests its usefulness as a patient-reported outcome screener of sleep quality in early-phase clinical trials clinics.ConclusionsPoor sleep quality was a significant problem in the current study and was associated with greater fatigue, symptom burden, and mood disturbance. Sleep quality should be routinely assessed in patients with advanced cancer who are participating in early-phase clinical trials. Cancer 2016;122:3401-3409. © 2016 American Cancer Society.© 2016 American Cancer Society.

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