Placebo Responses Have Increased Over 30 Years of Migraine Prevention Trials – Neurology Advisor

Read article - Features a study by Geisel School of Medicine researchers into the response to placebos in migraine prevention trials. “We found a statistically significant increase in the placebo response in preventive migraine trials from 1990 to 2021. The increase was not constant over the years or detectable when the outcome was reported as a dichotomous variable,” the study reports.