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Terminated Phase 2 Interventional Results available

Sphenopalatine Ganglion Block for Headache After Concussion

ClinicalTrials.gov ID: NCT04650282

Public ClinicalTrials.gov record NCT04650282. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 8, 2026, 5:35 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase II Randomized Controlled Double-Blind Clinical Trial of Sphenopalatine Ganglion (SPG) Block for Headache After Concussion

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This clinical trial will enroll participants to evaluate the effects of SPG block on post-traumatic headache. The study hypothesizes that patients that receive a SPG block with lidocaine vs. placebo (saline) will have a lower number of headache days in the week following the procedure, and will also report lower symptom scores. Eligible participants will receive one treatment (SPG block) as well as complete surveys prior to and after receiving treatment (for a total of approximately 2 weeks).

Study identification

NCT ID
NCT04650282
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Lead sponsor
University of Michigan
Other
Enrollment
2 participants

Conditions and interventions

Interventions

Combination Product

Eligibility (public fields only)

Age range
18 Years to 60 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 17, 2021
Primary completion
Mar 31, 2021
Completion
Apr 5, 2021
Last update posted
Sep 13, 2022

2021

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
University of Michigan Ann Arbor Michigan 48109

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04650282, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 13, 2022 · Synced Sep 8, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04650282 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →