Santana, T.A., Cruz, F.M., Trufelli, D.C., Glasberg, J., & Del Giglio, A. (2014). Carbamazepine for prevention of chemotherapy-induced nausea and vomiting: A pilot study. Sao Paulo Medical Journal, 132(3), 147–151.
The purpose of this study was to evaluate the potential effect of carbamazepine for chemotherapy-induced nausea and vomiting (CINV) for moderately or highly emetogenic chemotherapy (MEC or HEC). The secondary aim was to evaluate side effects of this treatment and its influence on quality of life.
The standard antiemetic regimen was given to all patients, which includes ondansetron IV 8 mg, dexamethasone IV 10 mg, and ranitidine IV 50 mg prior to chemotherapy (day 1). All patients also received dexamethasone PO 4 mg BID on days 2 and 3. In addition to the standard of care, all patients received carbamazepine 200 mg PO four times per day on the third day before chemotherapy, BID on the second day before chemotherapy, and three times a day on the day before chemotherapy. Patients continued taking carbamazepine 200 mg PO three times per day until the fifth day after chemotherapy. Patients recorded data on days 1–6. Rescue therapy was given as needed and included 5-HT3RA, phenothiazines, butyrophenones, and domperidone.
Prospective, descriptive study
Ten patients signed informed consent, three subjects could not complete the study due to adverse events (two had vomiting prior to chemotherapy and one experienced severe somnolence). The remaining seven patients had no response to the treatment, and there was no documented impact on quality of life as measured by the FLIE. The study was therefore discontinued.
The study was closed after seven subjects completed the protocol without any positive response for CINV. Carbamazepine was not found to be effective for CINV in women treated with highly emetogenic chemotherapy and caused vomiting in 20% of patients prior to the induction of chemotherapy.
Because the study was closed due to a 0% efficacy for CINV in this small sample of women with breast cancer, carbamazepine should not be recommended for CINV treatment at this time.