Effects of CBD/CBD-A Oral Extract on Resting-state EEG and Neuropathic Pain Symptoms After SCI

Last updated: June 16, 2025
Sponsor: University of Miami
Overall Status: Active - Recruiting

Phase

1/2

Condition

Pain (Pediatric)

Oral Facial Pain

Acute Pain

Treatment

CBD

Placebo

CBD/CBD-A

Clinical Study ID

NCT05630235
20220782
  • Ages 18-64
  • All Genders

Study Summary

The main purposes of this study are to (1) measure the effect of CBD/CBD-A on pain symptoms, pain intensity, pain unpleasantness, and skin sensitivity to hot and cold temperatures; and (2) measure the effect of CBD on brain electrical activity with electroencephalography (EEG).

Eligibility Criteria

Inclusion

Inclusion Criteria:

  1. Men or Women;

  2. 18-64 years of age with an incomplete or complete acquired traumatic SCI;

  3. Must have experienced neuropathic pain for a minimum of three months before enteringthe study (neuropathic pain will be assessed using the International SCI PainClassification);

  4. The pain intensity must be in the moderate to severe category, which will be definedas a score of at least four on an NRS (range of 0 to 10).

  5. Must have previous experience with consuming cannabis and or cannabinoids.

Exclusion

Exclusion Criteria:

  1. Current drug (DAST-10: >6) or alcohol abuse (AUDIT: >10);

  2. Current use of cannabis plant or cannabis products (CBD or CBD+THC) or any otherdrugs of abuse (unless prescribed) including alcohol;

  3. Presence of significant medical illness (e.g., diabetes, obesity, cardiovasculardisease, hypertension, hepatitis) or other significant neurological trauma;

  4. History of or current severe psychopathology (e.g., major depressive disorder,bipolar disorder, schizophrenia, post-traumatic stress disorder) judged by theinvestigator to put the subject at greater risk of experiencing an adverse event;

  5. Adults who are unable to consent, women who are pregnant, breastfeeding, or notpracticing an effective form of birth control (condoms, diaphragm, birth controlpill, IUD), and prisoners;

  6. Current pregnancy. Pregnancy will be evaluated using a pregnancy test during thefirst study visit. Female subjects of childbearing potential will be required to usetwo forms of effective birth control for the 3 months prior to participating in thestudy and continuing for 1 month after completion of the study;

  7. Have a history of renal or hepatic disease: or

  8. Have elevated serum creatinine above the laboratory upper limit of normal (ULN): or

  9. Have elevated serum transaminases (ALT or AST) above the ULN: or

  10. Have elevated total bilirubin above the ULN; or

  11. Take valproate, due increased risk of liver enzyme elevation; or

  12. Currently using strong CYP2C19 and CYP3A4 inducers; or

  13. Have suicidal ideation (subjects should be screened for suicidal ideation); or

  14. Cannot abstain from the use of alcohol during the study period, due to increasedrisk of sedation; or

  15. Have a known or suspected hypersensitivity to cannabidiol or tetrahydrocannabinol.

  16. Have a known or suspected hypersensitivity to sesame seed oil, lecithin, or bovinegelatin.

Study Design

Total Participants: 20
Treatment Group(s): 3
Primary Treatment: CBD
Phase: 1/2
Study Start date:
June 16, 2025
Estimated Completion Date:
June 30, 2026

Connect with a study center

  • Lynn Rehabilitation Center

    Miami, Florida 33136
    United States

    Active - Recruiting

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