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      Olanzapine: An Antiemetic Option for Chemotherapy-Induced Nausea and Vomiting

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      , PharmD, BCOP, , PharmD, BCOP
      Journal of the advanced practitioner in oncology
      Harborside Press

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          Abstract

          Despite the appropriate use of pharmacologic and nonpharmacologic preventative measures, chemotherapy-induced nausea and vomiting (CINV) can be debilitating and can decrease quality of life for many patients. In addition, patients may be unwilling to continue chemotherapy treatment due to the uncontrollable nausea and vomiting associated with their therapy. Refractory CINV can occur at any point in a treatment cycle, despite adequate therapy for acute and delayed CINV. Current prevention strategies include using serotonin (5-HT3) receptor antagonists, corticosteroids, and/or neurokinin-1 receptor antagonists. Unfortunately, more pharmacologic options are needed to treat refractory CINV. The current standard of care for the treatment of refractory CINV includes phenothiazines, metoclopramide, butyrophenones, corticosteroids, cannabinoids, anticholinergics, and 5-HT3 receptor antagonists. Olanzapine, an atypical antipsychotic agent of the thiobenzodiazepine class, has the ability to target many different receptors, making it an attractive antiemetic agent.

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          Most cited references12

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          Guideline update for MASCC and ESMO in the prevention of chemotherapy- and radiotherapy-induced nausea and vomiting: results of the Perugia consensus conference.

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            Clinical research of Olanzapine for prevention of chemotherapy-induced nausea and vomiting

            Background This study was designed to mainly evaluate the activity and safety of olanzapine compared with 5-hydroxytryptamine3(5-HT3) receptor antagonists for prevention of chemotherapy-induced nausea and vomiting(CINV) in patients receiving highly or moderately emetogenic chemotherapy (HEC or MEC). The second goal was to evaluate the impact of olanzapine on quality of life (QoL) of cancer patients during the period of chemotherapy. Methods 229 patients receiving highly or moderately emetogenic chemotherapy were randomly assigned to the test group [olanzapine(O) 10 mg p.o. plus azasetron (A) 10 mg i.v. and dexamethasone (D) 10 mg i.v. on day 1; O 10 mg once a day on days 2-5] or the control group (A 10 mg i.v. and D 10 mg i.v. on day 1; D 10 mg i.v. once a day on days 2-5). All the patients filled the observation table of CINV once a day on days 1-5, patients were instructed to fill the EORTC QLQ-C30 QoL observation table on day 0 and day 6. The primary endpoint was the complete response (CR) (without nausea and vomiting, no rescue therapy) for the acute period (24 h postchemotherapy), delayed period (days 2-5 poschemotherapy), the whole period (days 1-5 postchemotherapy). The second endpoint was QoL during chemotherapy administration, drug safety and toxicity. Results 229 patients were evaluable for efficacy. Compared with control group, complete response for acute nausea and vomiting in test group had no difference (p > 0.05), complete response for delayed nausea and vomiting in patients with highly emetogenic chemotherapy respectively improved 39.21% (69.64% versus 30.43%, p < 0.05), 22.05% (78.57% versus 56.52%, p < 0.05), complete response for delayed nausea and vomiting in patients with moderately emetogenic chemotherapy respectively improved 25.01% (83.07% versus 58.06%, p < 0.05), 13.43% (89.23% versus 75.80%, p < 0.05), complete response for the whole period of nausea and vomiting in patients with highly emetogenic chemotherapy respectively improved 41.38% (69.64% versus 28.26%, p < 0.05), 22.05% (78.57% versus 56.52%, p < 0.05), complete response for the whole period of nausea and vomiting in patients with moderately emetogenic chemotherapy respectively improved 26.62% (83.07% versus 56.45%, p < 0.05), 13.43% (89.23% versus 75.80%, p < 0.05). 214 of 299 patients were evaluable for QoL. Comparing test group with control group in QoL evolution, significant differences were seen in global health status, emotional functioning, social functioning, fatigue, nausea and vomiting, insomnia and appetite loss evolution in favour of the test group (p < 0.01). Both treatments were well tolerated. Conclusion Olanzapine can improve the complete response of delayed nausea and vomiting in patients receiving the highly or moderately emetogenic chemotherapy comparing with the standard therapy of antiemesis, as well as improve the QoL of the cancer patients during chemotherapy administration. Olanzapine is a safe and efficient drug for prevention of CINV.
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              A pilot exploration of the antiemetic activity of olanzapine for the relief of nausea in patients with advanced cancer and pain.

              This open-label pilot study explored the antiemetic activity of olanzapine, an atypical antipsychotic, in patients with advanced cancer requiring opioid analgesics for pain. Fifteen patients received 2 days of a washout and placebo "run-in" followed by two day periods on each of three doses of olanzapine (2.5 mgs, 5 mgs, and 10 mgs). Patients completed a daily food journal as well as the Mini Mental State Exam, Simpson Angus Scale, Barnes Akathisia Scale, and the Functional Assessment of Cancer Therapy-General across four time periods, with special attention being placed on the nausea item. Eleven women and 4 men with varied primary cancer sites participated. The average age of the sample was 58 years (SD = 16.8). All three dose levels were associated with significant reductions in nausea compared to baseline. Diary entries recorded by the subjects suggested substantial benefits to overall well being and the 5mg condition was associated with statistically significant improvement in overall quality of life over baseline (F = 12.0, p < 0.005). No extrapyramidal symptoms were noted and mental status exams were not changed over the course of the eight days. These results suggest an antiemetic effect for olanzapine and indicate the need for a controlled trial.
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                Author and article information

                Journal
                J Adv Pract Oncol
                J Adv Pract Oncol
                JADPRO
                Journal of the advanced practitioner in oncology
                Harborside Press
                2150-0878
                2150-0886
                Jan-Feb 2014
                1 January 2014
                : 5
                : 1
                : 24-29
                Affiliations
                From Baptist Health Lexington, Lexington, Kentucky; Medical University of South Carolina, Charleston, South Carolina
                Author notes

                Correspondence to: Megan V. Brafford, PharmD, BCOP, 1740 Nicholasville Road, Lexington, KY 40503. E-mail: megan.brafford@bhsi.com

                Article
                jadpro.v05.i01.pg24
                4093458
                60273ec5-32a4-48d5-a1e6-755ea1010498
                Copyright © 2014, Harborside Press

                This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited and is for non-commercial purposes.

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                Categories
                Review Article
                Oncology

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