Randomized trial of betahistine mesilate tablets as augmentation for oxcarbazepine and carbamazepine in treating vestibular paroxysmia.

Abstract

BACKGROUND:

Vestibular paroxysmia (VP) is a rare episodic peripheral vestibular disorder. This study was conducted to compare the efficacy and acceptability of carbamazepine (CBZ) plus betahistine mesilate tablets (BMT) (CBZ+BMT) and oxcarbazepine (OXC) plus BMT (OXC+BMT) in treating VP, and investigated whether the synergistic effect could be increased along with the increased dose of BMT.

METHODS:

VP patients were recruited and randomly assigned to receive CBZ+BMT or OXC+BMT. The doses of CBZ and OXC were set to 200 and 300 mg/time, twice daily, respectively. The doses of BMT were set to 12 and 18 mg/time, twice daily. Half of the patients in each group received BMT 12 mg/time and the other half received BMT 18 mg/time. The treatment was continued for 12 weeks. The vertigo frequency, vertigo score, vertigo duration, response rate, and drug-related side effects were analyzed.

RESULTS:

In total, 92 patients in the CBZ+BMT group and 93 patients in the OXC+BMT group completed this trial. After 12 weeks of treatment, the two groups had similar average vertigo frequency, average vertigo score, average vertigo duration, and response rate. But the incidence of side effects was significantly higher in the CBZ+BMT group than in the OXC+BMT group (p=0.04). Subgroup analysis found that patients receiving BMT (18 mg) had greater reductions in average vertigo frequency, average vertigo duration, and average vertigo score, and higher response rates than patients receiving BMT (12 mg).

CONCLUSION:

These results demonstrated that OXC+BMT may be suitable as an alternative method in VP patients with CBZ hypersensitivity, and the synergistic effect could be increased along with the increased dose of BMT.

• Authors: Hui Xue, Wenping Xiang, Yichuan Yu, Guorong Liu, Yi Chong, Jiying Zhou
• Journal: Drug design, development and therapy (Drug Des Devel Ther) Vol. 12 Pg. 837-843 ( 2018) ISSN: 1177-8881 [Electronic] New Zealand
• PMID: 29695895 (Publication Type: Journal Article, Randomized Controlled Trial)

Chemical References

• Anticonvulsants
• Tablets
• Carbamazepine
• Oxcarbazepine
• Betahistine

Topics

• Anticonvulsants (administration & dosage, therapeutic use)
• Betahistine (administration & dosage, therapeutic use)
• Carbamazepine (administration & dosage, analogs & derivatives, therapeutic use)
• Dose-Response Relationship, Drug
• Drug Administration Schedule
• Female
• Humans
• Male
• Middle Aged
• Oxcarbazepine
• Tablets (administration & dosage, therapeutic use)
• Treatment Outcome
• Vertigo (drug therapy)