Study details
Enrolling now
Transnasal Sphenopalatine Ganglion Block for Acute Subarachnoid Hemorrhage Headache
University of California, Davis
NCT IDNCT06621329ClinicalTrials.gov data as of Apr 2026
Phase
Phase 2/3
Target enrollment
40
Study length
about 2 years
Ages
18–100
Locations
1 site in CA
What this study is about
Researchers are testing a transnasal sphenopalatine ganglion block as an addition to standard pain medication for reducing headache severity in people with acute subarachnoid hemorrhage. The trial also looks at whether this intervention can reduce the need for opioids during hospitalization and after discharge.
Simplified from trial records by PatientMatch.
What you may be asked to do
- 1.Take Transnasal sphenopalatine ganglion block
Participation Burden
What's physically and logistically required of participants.
Logistics & Travel
In-person visits
Requires travel to a study site
Physical Intervention
Standard
How treatment is administered
Treatment Assignment
Randomized (Open Label)
You are randomly assigned, but you will know your treatment.
Extracted study details
Pulled from the trial record to show what is being tested and what the study is measuring.
Endpoints
Primary: Numerical pain rating scale