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WithdrawnNCT06523725PTEUpdated Apr 24, 2025

Trial Investigating the Safety and Efficacy of BRC-003 in Refractory Post-Traumatic Epilepsy

A Phase 2 interventional study of PO BRC-003 (High Cannabidiol Cannabis Extract) and Placebo in Post-traumatic Epilepsy, sponsored by Dr. Paul Lyons. Withdrawn at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-04-24.

Sponsored by Dr. Paul Lyons · Phase 2, Interventional, and Treatment

Why this study was withdrawn
Company decision
Phase
Phase 2
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This prospective double blind phase II study seeks to evaluate the safety and efficacy of BRC-003, a high CBD investigational product, in the treatment of refractory PTE (Post-Traumatic Epilepsy). The research is divided into two phases: an open-label dose-finding phase (Part A) and a subsequent randomized controlled phase (Part B). This design aims to provide a thorough understanding of the investigational product's impact on seizure frequency, seizure severity, mood, anxiety, sleep, and quality of life.

Read the detailed description

Post-traumatic epilepsy (PTE) is a debilitating disorder characterized by recurrent seizures that develop following traumatic brain injury (TBI). Approximately 30 to 50% of patients with PTE may develop refractory epilepsy, wherein seizures persist despite treatment with multiple antiseizure medications (ASMs) or other therapeutic intervention. Moreover, the debilitating side effects of some ASMs can impact treatment compliance and patient quality of life; the side effects of ASMs may be more severe in patients with PTE.

Cannabis sativa L. has an extensive history of medical and therapeutic use. Growing interest in the utility of cannabinoids for medical indications including epilepsy, pain, nausea, appetite stimulation, muscle spasticity, and psychological disorders has led to its legalization in at least 14 countries as well as the regulatory approval of cannabis extract preparations, synthetic cannabinoids, and analogues. Cannabidiol (CBD), a non-intoxicating cannabinoid, has shown significant anticonvulsant properties and has received FDA (Food and Drug Administration) approval in three refractory seizure disorders.

This prospective study seeks to evaluate the safety and efficacy of BRC-003, a high CBD investigational product, in the treatment of refractory PTE. The research is divided into two phases: an open-label dose-finding phase (Part A) and a subsequent randomized controlled phase (Part B). This design aims to provide a thorough understanding of the investigational product's impact on seizure frequency, seizure severity, mood, anxiety, sleep, and quality of life.

02

Conditions studied

  • Post-traumatic Epilepsy

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03

In context

Epilepsy

1,805 studies on the registry are indexed under Epilepsy; 417 are open to participants now.

Browse Epilepsy studies →

Lead sponsor

This is the only study on the registry with Dr. Paul Lyons as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

Participants must meet all of the following criteria to be eligible for enrollment into the study:

  1. Diagnosis consistent with PTE,

    • and -
  2. History of a trial of at least two AEDs, including one trial of a combination of two concomitant AEDs, without successful seizure control. Vagus nerve stimulation (VNS), RNS, deep brain stimulation (DBS), or the ketogenic diet can be considered an equivalent to a drug trial,
  3. Between 1-4 baseline anti-epileptic drugs at stable doses for a minimum of 4 weeks prior to enrollment,
  4. VNS, DBS, or RNS must be on stable settings for a minimum of 3 months,
  5. If on ketogenic diet, must be on stable ratio for a minimum of 3 months.
  6. If applicable, documentation (including date of surgery) of prior VNS, DBS, RNS, Corpus Callosotomy, or other epilepsy surgery the patient has received.
  7. Age 18 years and older
  8. Acceptable method of contraception (or abstinence) for women of childbearing potential and for male patients with partners of childbearing potential; female patients must have a negative urine pregnancy test on the day of initiating IMP.
  9. Weight ≥ 40 kg

Exclusion criteria

Exclusion Criteria:

  • Participants meeting any of the following criteria will not be eligible for participation in the study:

    1. Active psychogenic non-epileptic seizures (PNES),
    2. Patients who are pregnant, breastfeeding, or not using acceptable methods of contraception during the course of the study and for three months thereafter,
    3. Male patient's partner is of childbearing potential; unless willing to ensure that they (male patients) or their partner(s) are using acceptable methods of contraception during the course of the study and for three months thereafter,
    4. Use of medical marijuana, cannabis, hemp, or CBD based product in the previous 30 days, or during the study.
    5. Weight ≤ 40 kg
    6. Initiation of felbamate within the last 12 months,
    7. Allergy to CBD or any cannabis-type products,
    8. ALT >5 × ULN or AST >5 × ULN, as seen in participant's laboratory results,
    9. Hemoglobin \<10 or hematocrit \<30 or WBC \< 2000, as seen in participant's laboratory results,
    10. Current (as assessed via C-SSRS) or history of suicidal ideation or attempt,
    11. In PI's judgment, active medical condition/treatment that impacts study activities,
    12. Unable to provide consent,
    13. No access to a mobile phone, and internet, not willing or able to download the eDiary application,
    14. Inability or failure to comply with study visits, requirements and/or instructions, and
    15. For Part B, prior enrollment in Part A of the study
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Part A and Part B

    Interventions: Drug: BRC-003 (High Cannabidiol Botanical Extract) 100 mg/mL

    Drug: PO BRC-003 (High Cannabidiol Cannabis Extract)

  • Placebo comparator
    Part B

    Placebo Comparator: 1 Placebo Half of the patients will receive PO placebo Interventions: Drug: Placebo

    Drug: Placebo

Interventions

  • DrugPO BRC-003 (High Cannabidiol Cannabis Extract)

    The research is divided into two phases: an open-label dose-finding phase (Part A) and a subsequent randomized controlled phase (Part B).

    Also known as: CBD, Cannabis Extract, Cannabinoids

  • DrugPlacebo

    Placebo

06

What researchers measure

Primary outcomes

  1. Safety assessment

    Adverse events (AEs) and serious AEs (SAEs). The incidence of adverse events as measure of subject safety \[Time Frame: Day 0 - Day 84\] The number of subjects who experienced an adverse event during the study. * Vital signs * Laboratory assessments

    Time frame: Day 84

  2. Efficacy assessment

    Change from baseline to 12 weeks (post-treatment) in number of Post-Traumatic Epilepsy (PTE) -associated seizures

    Time frame: Day 84

Secondary outcomes

  1. Number of patients considered treatment responders defined as those with a ≥ 50% reduction in PTE-associated seizure frequency.

    Measured by the number of patients considered treatment responders

    Time frame: Day 84

  2. Number of patients considered treatment responders defined as those with a ≥ 25%, ≥ 50%, ≥ 75% or 100% reduction in PTE-associated seizure frequency.

    Measured by the number of patients considered treatment responders

    Time frame: Day 84

  3. Number of patients experiencing a > 25% worsening, - 25 to + 25% no change, 25-50% improvement, 50-75% improvement or > 75% improvement in PTE-associated seizure frequency

    Measured by the number of patients considered treatment responders

    Time frame: Day 84

  4. Change in number of PTE-associated seizure-free days.

    per medical chart review

    Time frame: Day 84

  5. Seizure severity

    via the Seizure Severity Questionnaire (SSQ). Minimum value: 11, Maximum value: 77. The lower the score, the better the outcome.

    Time frame: Day 84

  6. Emotional distress/depression Information System (PROMIS) Short Form

    via the Patient-Reported Outcomes Measurement. Minimum score: 4, Maximum score: 20. The lower the score, the better the outcome.

    Time frame: Day 84

  7. Sleep disturbance

    via the PROMIS Short Form. Minimum score: 4, Maximum score: 20. The lower the score, the better the outcome.

    Time frame: Day 84

  8. Performance of Social Roles and Activities

    via the PROMIS Short Form. Minimum score: 4, Maximum score: 20. The lower the score, the better the outcome.

    Time frame: Day 84

  9. Anxiety

    via the General Anxiety Disorder-7 (GAD-7) scale. 0-4: minimal anxiety, 5-9: mild anxiety, 10-14: moderate anxiety, 15-21: severe anxiety

    Time frame: Day 84

  10. Quality of life measurement

    via QOLIE-31. Contains 17 multi-item measures of overall quality of life, emotional well-being, role limitations due to emotional problems, social support, social isolation, energy/fatigue, worry about seizure, medication effects, health discouragement, work/driving/social function, attention/concentration, language, memory, physical function, pain, role limitations due to physical problems, and health perceptions.

    Time frame: Day 84

  11. Use and effectiveness and of concomitant and frequency of rescue medications.

    per medical chart review

    Time frame: Day 84

07

Study locations

1 site
  • Winchester Medical Center
    Winchester, Virginia 22601, United States
08

References and documents

Publications

  • (Irimia & Van Horn, 2015; Wang et al., 2017)
  • (Ding et al., 2016).

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06523725
Lead sponsor
Dr. Paul Lyons
Collaborators
Biopharmaceutical Research Company
Responsible party
Dr. Paul Lyons (Principal Investigator, Valley Health System) — Sponsor-investigator
First posted
Jul 26, 2024
Start date
Nov 1, 2024
Primary completion
Apr 15, 2025
Completion
Apr 15, 2025
Last update
Apr 24, 2025

Study contacts

Paul D Lyons, MD. PhD
principal investigator · Valley Health System

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is withdrawn, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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