Flynn, Kathleen

Purpose Cumulative neurotoxicity is a prominent toxicity of oxaliplatin-based therapy. Intravenous calcium and magnesium have been extensively used to reduce oxaliplatin-induced neurotoxicity. This trial was designed to definitively test whether calcium/magnesium decreases oxaliplatin-related neurotoxicity. Patients and Methods In all, 353 patients with colon cancer undergoing adjuvant therapy with FOLFOX (fluorouracil, leucovorin, and oxaliplatin) were randomly assigned to intravenous calcium/magnesium before and after oxaliplatin, a placebo before and after, or calcium/magnesium before and placebo after. The primary end point was cumulative neurotoxicity measured by the sensory scale of the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Chemotherapy-Induced Peripheral Neuropathy 20 tool. Results There were no statistically significant neuropathy differences among the study arms as measured by the primary end point or additional measures of neuropathy, including clinician-determined measurement of the time to grade 2 neuropathy by using the National Cancer Institute Common Terminology Criteria for Adverse Events scale or an oxaliplatin-specific neuropathy scale. In addition, calcium/magnesium did not substantially decrease oxaliplatin-induced acute neuropathy. Conclusion This study does not support using calcium/magnesium to protect against oxaliplatin-induced neurotoxicity.

Purpose Up to 75% of women experience hot flashes, which can negatively impact quality of life. As hot flash physiology is not definitively understood, it cannot be assumed that effective agents represent class effects. Therefore, there is a continued need for rigorous evaluation to identify effective nonhormonal options for hot flash relief. Methods A randomized, double-blind trial evaluated citalopram at target doses of 10, 20, or 30 mg/d versus placebo for 6 weeks. Postmenopausal women with at least 14 bothersome hot flashes per week recorded hot flashes for 7 days before starting treatment and were then titrated to their target doses. The primary end point was the change from baseline to 6 weeks in hot flash score. Results Two hundred fifty-four women were randomly assigned onto this study. Data for hot flash scores and frequencies showed significant improvement in hot flashes with citalopram over placebo, with no significant differences among doses. Reductions in mean hot flash scores were 2.0 (23%), 7.0 (49%), 7.7 (50%), and 10.7 (55%) for placebo and 10, 20, and 30 mg of citalopram, respectively (P ≤ .002). Improvement in secondary outcomes, such as the Hot Flash Related Daily Interference Scale, was statistically superior in the 20-mg arm. Citalopram was well-tolerated, with no significant negative adverse effects. Conclusion Citalopram is an effective, well-tolerated agent in managing hot flashes. There does not appear to be a significant dose response above 10 mg/d, but broader helpful effects of the agent appear to be more evident at 20 mg/d.

Purpose Hot flashes are a common problem for which effective and safe treatments are needed. The current trial was conducted on the basis of preliminary promising data that pregabalin decreased hot flashes. Patients and Methods A double-blind, placebo-controlled, randomized trial design was used to compare pregabalin at target doses of 75 mg twice daily and 150 mg twice daily with a placebo. Hot flash frequencies and scores (frequency times mean severity) were recorded daily during a baseline week and for six treatment weeks. The primary end point for this study was the change-from-baseline hot flash score during treatment week 6 between the 150 mg twice daily target pregabalin treatment and placebo. Nonparametric Wilcoxon rank sum tests, two-sample t tests, and χ 2 tests were used to compare the primary and secondary hot flash efficacy end points between pregabalin treatments and placebo. Results Hot flash score changes available for 163 patients during the sixth treatment week compared with a baseline week decreased by 50%, 65%, and 71% in the placebo, and target 75 mg twice daily and 150 mg twice daily pregabalin arms, respectively (P = .009 and P = .007, comparing respective pregabalin arms to the placebo arm). While some toxicities were significantly more common in the pregabalin arms, being more evident with the higher dose, pregabalin was generally well tolerated by most patients. Conclusion Pregabalin decreases hot flashes and is reasonably well tolerated. A target dose of 75 mg twice daily is recommended. Its effects appear to be roughly comparable to what has been reported with gabapentin and with some newer antidepressants.