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Study identifier: NCT06333041 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Study of Cannabidiol in Sanfilippo Syndrome

Condition: Sanfilippo Syndrome · Mucopolysaccharidosis III  ·  Sponsor: Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center

PhasePhase 2/Phase 3
Planned participants35
Who can joinAll sexes, 4 Years to no upper limit
Healthy volunteersNo

About this study

The goal of this clinical trial is to test cannabidiol in Sanfilippo syndrome. The main questions it aims to answer are: 1) determine the safety of cannabidiol in Sanfilippo syndrome, and 2) explore the efficacy of cannabidiol in treating the neurobehavioral symptoms and functional outcomes of Sanfilippo syndrome. Each participant's caregiver will be asked to complete surveys related to the participant's behavior, mood, sleep, stooling, pain, and caregiver stress intermittently throughout the study. All participants will be enrolled into one of two cohorts based on enrollment order: 1. Sentinel Safety Cohort (first 5 participants) - all participants treated with Epidiolex (cannabidiol) 2. Controlled Cohort (next 30 participants) - participants randomized 1:1 (equal chance) to start treatment with Epidiolex (cannabidiol) or placebo for 16 weeks, followed by an 8-week washout period (no treatment). Participants then switch to the opposite treatment group for 16 weeks followed by all participants treated for 52 weeks with Epidiolex (cannabidiol).

This description comes directly from the study's public registry record.

Talk to the study team

Jonathan Acevedo, BS  ·  310-357-9023  ·  jonathan.acevedo@lundquist.org

Adolfo Morales, BA  ·  310-357-9023  ·  adolfo.morales@lundquist.org

Always discuss trial participation with your own doctor first.

Locations (1)

The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical CenterTorrance, California, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT06333041