Overview Sphenopalatine Ganglion Blocks RCT Status: Completed Trial end date: 2021-07-08 Target enrollment: Participant gender: Summary RCT of Sphenopalatine Ganglion (SPG) Blocks using anesthetics vs. placebo for migraine. Phase: Phase 4 Details Lead Sponsor: University of California, San FranciscoTreatments: BupivacaineLidocaineRopivacaine