Does Atorvastatin Help Prevent Classic Migraine Attacks? A Triple-Blind Controlled Clinical Trial

Abstract Background: Migraine is a painful and disabling nervous disorder which negatively affects the quality of life. Migraineurs may suffer from a generalized vasomotor dysfunction. Statins improve vasomotor and vascular function, with their pleiotropic effects. We aimed to assess efficacy and safety of adding Atorvastatin to prophylactic regimen in better control of classic migraine. Methods: This triple-blind controlled clinical trial was on 68 consecutive patients with history of classic migraine. An interval of at least one month was given to evaluate vitamin D3 level and eligibility. In patients with vitamin D3 deficiency, the correction was provided by administration of soft gelatin capsule of vitamin D supplementation. The patients were randomly assigned to receive atorvastatin 20mg plus sodium valproate 500mg or placebo plus sodium valproate 500mg once a day for two months. The patients were evaluated based for the number of attacks and pain severity based on Visual Analogue Scale. Results: There was a significant (p = 0.0001) improvement in severity of pain and number of migraine attacks by adding Atorvastin to the prophylactic regimen of patients. After controlling for variable parameters, the differences between two arms of the study was yet statistically significant (p = 0.0001). A significant number of participants in intervention group were satisfied by their treatment (p = 0.001). There was no remarkable difference in two arms of the study in terms of possible side effects (P =0.315). Conclusions: The results of present study suggested that adding atorvastatin to migraine preventive regimen may help reduce the number of acute attacks and pain severity. This modality did not cause considerable side effects and led to a better patient satisfaction.