Abstract：Objective To assess the efficacy and safety of a combination of Olanzapine and strong opioid drugs in treating
cancer pain. Methods Clinical data of patients with cancer pain treated with strong opioids from January 2018 to August 2020
in Department of Oncology, Changzheng Hospital, Naval Military Medical University were retrospectively analyzed. Patients
were divided into 4 groups according to the dose of olanzapine they received: group 10 mg/d, group 5 mg/d, group 2.5 mg/d and
the control group. The change in NRS score of cancer pain after 1⁃week treatment was assessed. Adverse events (AEs)
monitoring occurred throughout.Results Among the 6 patients who received Olanzapine 10 mg/d, 4 patients experienced 3⁃grade
drowsiness, 2 patients experienced 3⁃grade fatigue, 1 patient experienced 3⁃grade constipation. This group was discontinued
owing to the AEs. After 1⁃week treatment, the NRS score of the 3 groups were 3.9±1.5、3.5±1.4、4.8±1.0 for group 5 mg/d
olanzapine 2.5 mg/d olanzapine and control group respectively. In the study, treatment with 5 mg/d olanzapine, compared with
Control group, resulted in statistically significant improvement（P＝0.032）. Treatment with 2.5 mg/d olanzapine, compared with
Control group, also resulted in statistically significant improvement（P＝0.002）. Treatment with 5 mg/d olanzapine, compared
with Treatment with 2.5 mg/d olanzapine, didn′t result in any statistically significant improvement（P＝0.364）. Conclusion
Treatment with a combination of 10 mg/d and 5 mg/d olanzapine with strong opioid drugs can significantly reduce the NRS
score, improve the efficacy of cancer pain.
王湛，叶晨阳，焦晓栋，秦文星，臧远胜. 奥氮平联合阿片类药物治疗癌痛的临床观察[J]. 肿瘤代谢与营养电子杂志, 2021, 8(3): 304-308.
Wang Zhan, Ye Chenyang, Jiao Xiaodong, Qin Wengxing, Zang Yuansheng. Clinical observation of olanzapine combined with opioids in the treatment of cancer pain. Electron J Metab Nutr Cancer, 2021, 8(3): 304-308.
