MCAS (Mast Cell Activation Syndrome) 60 Day Study Return home 60 day treatment for chronic widespread musculoskeletal pain associated with MCAS (Mast Cell Activation Study) If you are interested in learning more about this study, please fill out the the following. Name(Required) Email(Required) PhoneConsent(Required) I qualify for this study per the above stated qualifications.NameThis field is for validation purposes and should be left unchanged. Δ Return home