CBD reduced seizures in 27% of children with severe epilepsy but did not improve quality of life
In 41 children with Dravet or Lennox-Gastaut syndrome, CBD reduced seizures by 50% or more in 27% of patients, but overall quality of life and adaptive behavior scores did not improve after six months.
Quick Facts
What This Study Found
26.8% of patients achieved 50% or greater seizure reduction after six months of CBD. However, total quality of life scores did not change (85.71 to 83.12, p = 0.630). Motor skills scores on the Vineland-II actually decreased (48.67 to 45.18, p = 0.005). No other adaptive behavior or behavioral scores changed.
Key Numbers
41 patients (median age 4.1 years, 25 male). CBD dose: 10 mg/kg/day. 26.8% had 50% or more seizure reduction. QOLCE unchanged (p = 0.630). Motor skills decreased (p = 0.005). No behavioral changes on K-CBCL.
How They Did This
Prospective open-label study of 41 pediatric patients (11 Dravet syndrome, 30 Lennox-Gastaut syndrome) treated with oral CBD at 10 mg/kg/day. Quality of life measured by QOLCE, adaptive behavior by Vineland-II and K-CBCL at baseline and 6 months.
Why This Research Matters
Seizure reduction is an important outcome, but families care about overall quality of life. This study suggests that even when CBD reduces seizures, it may not translate into meaningful improvements in daily functioning for children with profound intellectual disabilities.
The Bigger Picture
This highlights a challenge in severe epilepsy treatment: reducing seizures is necessary but may not be sufficient to improve quality of life in children with profound neurological impairment.
What This Study Doesn't Tell Us
Open-label study with no control group. Small sample (41 patients). All patients had profound intellectual disabilities, limiting generalizability. The decrease in motor skills may reflect disease progression rather than a CBD effect.
Questions This Raises
- ?Would higher CBD doses improve quality of life?
- ?Is the motor skills decline related to CBD or natural disease progression?
- ?Would children with less severe intellectual disabilities show QOL improvements?
Trust & Context
- Key Stat:
- 27% seizure reduction but zero quality of life improvement
- Evidence Grade:
- Prospective open-label study with validated outcome measures but no control group and small sample.
- Study Age:
- Published in 2022.
- Original Title:
- Effects of Cannabidiol on Adaptive Behavior and Quality of Life in Pediatric Patients With Treatment-Resistant Epilepsy.
- Published In:
- Journal of clinical neurology (Seoul, Korea), 18(5), 547-552 (2022)
- Authors:
- Kim, Se Hee(2), Choi, Han Som, Koo, Chung Mo(2), Joo, Bong-Rim, Park, Byung-Joo, Lee, Hae Kook, Lee, Joon Soo, Kim, Heung Dong, Kang, Hoon-Chul
- Database ID:
- RTHC-03962
Evidence Hierarchy
Enrolls participants and follows them forward in time.
What do these levels mean? →Frequently Asked Questions
Does CBD improve quality of life for children with epilepsy?
In this study of 41 children with Dravet or Lennox-Gastaut syndrome, CBD reduced seizures in 27% but did not improve overall quality of life scores, possibly because all patients had profound intellectual disabilities.
How effective is CBD for severe childhood epilepsy?
About 27% of patients achieved a 50% or greater seizure reduction after six months on CBD at 10 mg/kg/day, but this seizure improvement did not translate into measurable gains in adaptive behavior or quality of life.
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Cite This Study
https://rethinkthc.com/research/RTHC-03962APA
Kim, Se Hee; Choi, Han Som; Koo, Chung Mo; Joo, Bong-Rim; Park, Byung-Joo; Lee, Hae Kook; Lee, Joon Soo; Kim, Heung Dong; Kang, Hoon-Chul. (2022). Effects of Cannabidiol on Adaptive Behavior and Quality of Life in Pediatric Patients With Treatment-Resistant Epilepsy.. Journal of clinical neurology (Seoul, Korea), 18(5), 547-552. https://doi.org/10.3988/jcn.2022.18.5.547
MLA
Kim, Se Hee, et al. "Effects of Cannabidiol on Adaptive Behavior and Quality of Life in Pediatric Patients With Treatment-Resistant Epilepsy.." Journal of clinical neurology (Seoul, 2022. https://doi.org/10.3988/jcn.2022.18.5.547
RethinkTHC
RethinkTHC Research Database. "Effects of Cannabidiol on Adaptive Behavior and Quality of L..." RTHC-03962. Retrieved from https://rethinkthc.com/research/kim-2022-effects-of-cannabidiol-on
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.