Objective: To perform a retrospective chart
review of patients who had received topiramate for prophylaxis of
intractable chronic migraine.
Methods: Patient charts were reviewed and patients who
had received topiramate for prophylaxis of intractable chronic
migraine were analyzed for demographics, baseline characteristics,
response to topiramate treatment, incidence of adverse events (AEs)
and other variables.
Results: Thirty-four patients, aged 24-65 years,
meeting IHS criteria for chronic migraine were included in the
analysis. The median duration of migraine in these patients was
20 years. Baseline headache rates ranged from 3-5 per week to daily
or near-daily. At the time of analysis, 19 patients were improved
or much improved and 15 patients reported no change with topiramate
treatment. Topiramate was well tolerated. Fourteen patients
reported no AEs. The most common AEs were fatigue, anorexia/weight
loss and concentration difficulties. Seven patients discontinued
due to AEs and 1 for lack of efficacy. Twelve patients reported
weight loss.
Conclusions: These encouraging results suggest
topiramate is efficacious and well tolerated in this group of
treatment-resistant patients for prophylaxis of intractable chronic
migraine. Further study is warranted in larger, placebo-controlled,
double-blind studies.
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