- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06069791
Greater Occipital Nerve Blockade in Veterans With Post-concussion Headache: Sub-study 1
Anesthetic Greater Occipital Nerve Blockade in Veterans With Post-Traumatic Headache: Sub-study 1
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Military Servicemembers are at elevated risk for traumatic brain injury (TBI) and its consequences, including post-traumatic headache (PTH). The most common phenotype of PTH is migraine, for which there are numerous potential treatments, though these have limitations, including poor efficacy, drug-drug interactions, and intolerable side effects. Therefore, the consideration of other methods to manage PTH in Servicemembers and Veterans is warranted.
Anesthetic greater occipital nerve (GON) blockade is a simple, inexpensive, and safe procedure that has demonstrable headache pain suppressing effects in a variety of headache disorders. This intervention is frequently done to provide immediate relief, followed by a period of reduced headache burden.
The acute burning that occurs during injection and then the numbing over the scalp that occurs shortly after anesthetic GON blockade make controlled investigations against placebo difficult to interpret. In sub-study 1 of this project, different concentrations of bupivacaine (0.0%, 0.01%, 0.05%, 0.1%) will be examined in order to identify a suitable control dose to later compare to the full dose of 0.5%. Acute and subacute sensations from bupivacaine GON blockade will be measured and the lowest concentration that resembles the sensations elicited by full dose (0.5%) will be used in a subsequent efficacy trial (sub-study 2).
Study Type
Enrollment (Estimated)
Phase
- Phase 1
Contacts and Locations
Study Contact
- Name: Emmanuelle Schindler, MD, PhD
- Phone Number: 4335 203-932-5711
- Email: emmanuelle.schindler@va.gov
Study Locations
-
-
Connecticut
-
West Haven, Connecticut, United States, 06516
- Recruiting
- VA Connecticut Healthcare System
-
Contact:
- Emmanuelle Schindler, MD, PhD
- Phone Number: 4335 203-932-5711
- Email: emmanuelle.schindler@va.gov
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- United States Military Veterans within VA Connecticut Healthcare System
- Chronic post-traumatic headache per ICHD-3 criteria (i.e., headaches are continuing to occur three months after the head injury)
- At least two headache days per week
- MRI brain scan completed within the past 3 months if chronic PTH for less than one year, within the past year if chronic PTH for less than 5 years, and within 5 years if chronic PTH for more than 10 years
- Review of MRI and the medical record does not reveal another source for headache
Exclusion Criteria:
- Skull defect
Other contraindication to bupivacaine
- Allergy or adverse reaction (e.g., rash, cardiac effects) to amide anesthetics, such as lidocaine
- Instruction from clinician to avoid amide anesthetics, such as lidocaine
- Pregnant or lack of adequate birth control
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Group 1
bupivacaine 0.0%, 0.01%, and 0.05% in random order, one week apart each
|
subcutaneous injection around bilateral greater occipital nerves
|
Experimental: Group 2
bupivacaine 0.1%, 0.05%, and 0.1% in random order, one week apart each
|
subcutaneous injection around bilateral greater occipital nerves
|
Experimental: Group 3
bupivacaine 0.0%, 0.1%, and 0.5% in random order, one week apart each
|
subcutaneous injection around bilateral greater occipital nerves
|
Experimental: Group 4
bupivacaine [0.01%
or 0.05%], [0.05% or 0.1%], and 0.05% in random order, one week apart each
|
subcutaneous injection around bilateral greater occipital nerves
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Acute sensation felt during injection: quality
Time Frame: During injection
|
The quality of the sensation on the scalp at the time of injection (e.g., burning, shooting, aching)
|
During injection
|
Acute sensation felt during injection: intensity
Time Frame: During injection
|
The maximum intensity of the sensation on the scalp at the time of injection on 0-10 numerical rating scale
|
During injection
|
Paresthesia felt after injection: quality
Time Frame: From the time of injection to 1 week after injection
|
The quality of the sensation over the scalp after injection (e.g., numbing, tingling, coolness)
|
From the time of injection to 1 week after injection
|
Paresthesia felt after injection: intensity
Time Frame: From the time of injection to 1 week after injection
|
The maximum intensity of the sensation over the scalp after injection on 0-10 numerical rating scale
|
From the time of injection to 1 week after injection
|
Paresthesia felt after injection: distribution
Time Frame: From the time of injection to 1 week after injection
|
The location of the sensation over the scalp after injection, drawn on figure of head and neck
|
From the time of injection to 1 week after injection
|
Paresthesia felt after injection: duration
Time Frame: From the time of injection to 1 week after injection
|
The duration of the sensation over the scalp after injection (hours)
|
From the time of injection to 1 week after injection
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Adverse events
Time Frame: From the first injection to two weeks after the last injection
|
Complications that occur during or after injection
|
From the first injection to two weeks after the last injection
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Pain
- Neurologic Manifestations
- Headache Disorders
- Headache Disorders, Secondary
- Headache
- Post-Traumatic Headache
- Physiological Effects of Drugs
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Sensory System Agents
- Anesthetics
- Anesthetics, Local
- Bupivacaine
Other Study ID Numbers
- 1656679
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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