Acceptability of Placebo in Cluster Headache Trials: A Patient Survey

This was an observational survey study administered to individuals over age 18 who identify themselves as having cluster headache. Patient perspectives on the use of placebo in cluster headache clinical trials were assessed using a paper-based survey. Participants were recruited during a national conference held for patients with cluster headaches (“Clusterbusters” in Austin, TX, September 2016). Informed consent was obtained and no identifiable data were collected.