Transnasal Sphenopalatine Ganglion Block for Treatment of Acute Subarachnoid Hemorrhage Associated Headache — StellaPhase 2 — Testing in a larger group (up to a few hundred people) to further evaluate safety and begin to assess effectiveness.
Trial locations(1 site)
United States
UC Davis Medical Center, Sacramento, California Age range
18 Years – 100 Years
Last updated November 2025