# Transnasal Sphenopalatine Ganglion Block for Treatment of Acute Subarachnoid Hemorrhage Associated Headache

> **NCT06621329** · PHASE2,PHASE3 · RECRUITING · sponsor: **University of California, Davis** · enrollment: 40 (estimated)

## Conditions studied

- SAH (Subarachnoid Hemorrhage)
- Headache

## Interventions

- **COMBINATION_PRODUCT:** Transnasal sphenopalatine ganglion block

## Key facts

- **NCT ID:** NCT06621329
- **Lead sponsor:** University of California, Davis
- **Sponsor class:** OTHER
- **Phase:** PHASE2,PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2024-10-17
- **Primary completion:** 2026-07
- **Final completion:** 2026-10
- **Target enrollment:** 40 (ESTIMATED)
- **Last updated:** 2025-11-26

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06621329

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06621329, "Transnasal Sphenopalatine Ganglion Block for Treatment of Acute Subarachnoid Hemorrhage Associated Headache". Retrieved via AI Analytics 2026-06-10 from https://api.ai-analytics.org/clinical/NCT06621329. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*