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  • Author: Lindsey R. Sangaralingham x
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Deirdre R. Pachman, Kathryn Ruddy, Lindsey R. Sangaralingham, Axel Grothey, Nilay D. Shah, Andreas S. Beutler, Joleen M. Hubbard and Charles L. Loprinzi

Substantial research efforts have focused on methods of treating and preventing oxaliplatin-associated neuropathy, the dose-limiting toxicity associated with this drug. Administration of intravenous calcium and magnesium (CaMg) before and after oxaliplatin has been the most studied approach to preventing oxaliplatin-induced neuropathy. Although early reports demonstrated potential benefit, subsequent larger trials failed to confirm the efficacy of CaMg in preventing this adverse effect. This article explores how accumulating evidence for and against the use of CaMg for preventing oxaliplatin-induced neuropathy has impacted clinical practice.

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Ciara C. O'Sullivan, Holly K. Van Houten, Lindsey R. Sangaralingham, Alexis D. Leal, Shivani Shinde, Hongfang Liu, David Ettinger, Charles L. Loprinzi and Kathryn J. Ruddy

Purpose: Prevention of chemotherapy-induced nausea and vomiting is essential to preserve quality of life in patients with cancer receiving highly emetogenic chemotherapy (HEC). Recently, new drugs (eg, fosaprepitant, and the newer neurokinin-1 receptor antagonists [NK1RAs] rolapitant and netupitant) and updated antiemetic guidelines have emerged. However, trends in real-world antiemetic use are understudied. Methods: We identified patients treated with an initial dose of HEC (either cisplatin or doxorubicin/cyclophosphamide) from January 2006 to June 2016 using administrative claims data from a US commercial insurance database (OptumLabs). Antiemetic use was determined by identifying intravenous/oral/transdermal administration within ±1 day of the chemotherapy dose and/or prescription fill from 14 days before to 7 days after chemotherapy. We used descriptive statistics to present patient demographics, chemotherapy drugs administered, presence/absence of a central intravenous access device, and antiemetics used. Results: A total of 23,030 patients (67.3%) received doxorubicin/cyclophosphamide and 11,206 (32.7%) received cisplatin. Dexamethasone and 5-hydroxytryptamine 3 receptor antagonists (5-HT3RAs) were consistently used by 85% to 95% of patients, consistent with guideline recommendations. NK1RAs were underused early on, but use increased to approximately 80% in the most recently evaluated year. Fosaprepitant use increased precipitously starting in 2009, preceding a sharp decrease in aprepitant use beginning in 2011. Receipt of olanzapine, rolapitant, and netupitant was minimal throughout the study period. Conclusions: Dexamethasone and 5-HT3RAs were used by most patients receiving HEC, in accordance with guideline recommendations. NK1RA use was less adherent with guidelines.