nVNS + CBD for Post-Traumatic Headache

Not yet recruiting at 7 trial locations
EA
NM
Overseen ByNathaniel M Schuster, MD
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)
Prior Safety DataThis treatment has passed at least one previous human trial

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial aims to determine if cannabidiol (CBD) and non-invasive vagus nerve stimulation (nVNS) can more effectively reduce the frequency of persistent headaches from past head injuries compared to traditional medications. Researchers will divide participants into three groups to test these treatments. The trial suits individuals who have experienced persistent headaches for over three months following a head injury and have at least four moderate to severe headaches per month. As a Phase 2 trial, the research focuses on assessing the treatment's effectiveness in an initial, smaller group, offering participants an opportunity to contribute to important findings.

Will I have to stop taking my current medications?

You may need to stop or not change certain medications, especially those for headache prevention, as the study requires you not to start or change the type, dosage, or frequency of these medications. If you are using medical marijuana, cannabis, hemp, or CBD products, you must stop using them during the study.

Is there any evidence suggesting that this trial's treatments are likely to be safe?

Research shows that both non-invasive vagus nerve stimulation (nVNS) and cannabidiol (CBD) are generally safe for people.

For nVNS, studies have found it to be well-tolerated with few side effects. In one study with 102 patients, nVNS reduced symptoms like post-traumatic headache and improved various health areas. Another study found that nVNS effectively relieved pain, with benefits observed 120 minutes after use.

CBD is also known for its safety. The World Health Organization reports that CBD is generally well-tolerated. Studies show it does not cause a "high" and is safe to use without serious side effects. Its anti-inflammatory properties can be helpful for conditions like traumatic brain injury.

These findings suggest that both treatments have a strong safety record based on previous research.12345

Why are researchers excited about this trial's treatments?

Researchers are excited about these treatments for post-traumatic headache because they offer novel approaches compared to typical pain relievers and preventive medications like NSAIDs, triptans, and beta-blockers. Non-Invasive Vagus Nerve Stimulation (nVNS) is unique because it uses electrical pulses to stimulate the vagus nerve, which may help regulate pain signals and reduce headache frequency without the need for medication. Cannabidiol (CBD), on the other hand, is derived from cannabis and is being investigated for its potential anti-inflammatory and analgesic properties, offering a natural alternative to traditional pharmaceuticals. These interventions could provide new hope for patients seeking relief from debilitating headaches with fewer side effects.

What evidence suggests that this trial's treatments could be effective for post-traumatic headache?

This trial will compare the effects of non-invasive vagus nerve stimulation (nVNS) and cannabidiol (CBD) for post-traumatic headache. Studies have shown that nVNS can significantly benefit individuals with trauma-induced headaches. In one study, patients experienced improvements in 16 out of 22 symptom areas, including headache relief. Another study found that nVNS might also enhance brain functions, such as thinking and movement, after a brain injury.

Conversely, while CBD is known for reducing inflammation, no direct evidence yet confirms its effectiveness in treating trauma-related headaches. However, some research suggests that CBD might protect the brain and reduce inflammation, potentially aiding in managing headaches after a brain injury. Although these findings are promising, further research is needed to confirm its effectiveness specifically for post-traumatic headaches.13467

Who Is on the Research Team?

NM

Nathaniel M Schuster, MD

Principal Investigator

University of California, San Diego

EA

Erika A Petersen, MD

Principal Investigator

University of Arkansas

Are You a Good Fit for This Trial?

This trial is for people who have ongoing headaches after a head injury. Participants should be adults with persistent post-traumatic headache and able to follow study instructions. Those with certain medical conditions or using conflicting treatments may not qualify.

Inclusion Criteria

I have 4 to 25 headache days per month, with at least 4 being moderate or severe.
I have had headaches for over 3 months after a head injury.
Able to provide written informed consent
See 6 more

Exclusion Criteria

I have used gammaCore or high-dose CBD for my post-traumatic headache.
I am unable to fully understand or agree to the study requirements.
My partner can become pregnant, and we will use contraception during and after the study.
See 15 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive either non-invasive vagal nerve stimulation, cannabidiol, or standard of care oral pharmacotherapy

12 weeks

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • Cannabidiol
  • Non-Invasive Vagus Nerve Stimulation

Trial Overview

The study compares three approaches: non-invasive vagus nerve stimulation (a device used on the neck), cannabidiol (CBD, a compound from cannabis), and standard oral headache medications to see which works best at reducing headache frequency.

How Is the Trial Designed?

3

Treatment groups

Experimental Treatment

Group I: Standard of CareExperimental Treatment1 Intervention
Group II: Non-Invasive Vagus Nerve StimulationExperimental Treatment1 Intervention
Group III: CannabidiolExperimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

American Society of Pain and Neuroscience, Inc.

Lead Sponsor

National Football League

Collaborator

Trials
8
Recruited
2,000+

Citations

Cannabidiol's neuroprotective properties and potential ... - PMC

At this time, there's no empirical evidence that CBD is effective at treating posttraumatic headache. However, CBD's ability to regulate inflammation may ...

Cannabis and CBD Research

led to long-lasting neuroprotection." They found that dosing with CBD after the brain injury reduced the volume and extent of brain damage, reduced inflammation ...

nVNS, CBD, and SoC for Persistent Post-Traumatic ...

Do cannabidiol (CBD) or vagus nerve stimulation reduce the frequency of persistent post-traumatic headache more than traditional oral headache ...

a dose escalation, placebo washout study protocol | BMC ...

Cannabinoids such as cannabidiol (CBD) exhibit anti-inflammatory properties and have the potential to act as a therapeutic following mild ...

CBD for Traumatic Brain Injury · Info for Participants

Oral administration of cannabidiol (CBD) significantly reduced the over-release of glutamate caused by severe traumatic brain injury (TBI) in male Wistar rats, ...

6.

concussionalliance.org

concussionalliance.org/cbd-101

CBD 101 — Concussion Alliance

The World Health Organization (WHO) in a November 2017 report concluded that "CBD is generally well tolerated with a good safety profile. CBD after a traumatic ...

A Retrospective Analysis of Cannabidiol (CBD) Use in ...

CBD users made up 11% of the cohort. CBD users had a 3.48 ・ no difference in headaches (p = 0.61). CBD users relative to non-users reported greater total post ...