This analysis of the American Migraine Prevalence and Prevention (AMPP) study examined predictors of remission from chronic migraine.[Manack et al., 2011] As shown on the slide, low baseline headache frequency and absence of allodynia were strong predictors of remission.[Manack et al., 2011] Interestingly, the use of preventive medication was not a predictor for remission.[Manack et al., 2011] Persistent chronic migraine, i.e., non-remission, was associated with increases in headache-related disabilities, highlighting the importance of remission as a clinical goal for people with migraine.[Manack et al., 2011]

Reference:
Manack A, Buse DC, Serrano D, et al. Rates, predictors, and consequences of remission from chronic migraine to episodic migraine. Neurology 2011; 76 (8): 711–718.