Highly purified CBD resolved two cases of life-threatening status epilepticus that resisted standard treatments

Two patients with refractory and super-refractory status epilepticus, conditions with high mortality that had not responded to standard treatments, achieved seizure resolution after receiving highly purified CBD via nasogastric tube, with continued efficacy at 6-month follow-up.

Di Mauro, Giovanni et al.·CNS & neurological disorders drug targets·2025·Preliminary EvidenceCase Report
RTHC-06346Case ReportPreliminary Evidence2025RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Case Report
Evidence
Preliminary Evidence
Sample
Not reported

What This Study Found

Both patients achieved resolution of status epilepticus after adding highly purified CBD (hpCBD) as add-on therapy via nasogastric tube, without adverse events. At 6-month follow-up, both patients continued on hpCBD treatment, which remained effective for seizure management.

Key Numbers

Two patients treated. Both achieved SE resolution. Zero adverse events reported. Both continued on hpCBD at 6-month follow-up with continued efficacy. hpCBD is already approved for Lennox-Gastaut, Dravet syndrome, and Tuberous Sclerosis Complex.

How They Did This

Case series of two patients presenting with refractory status epilepticus (RSE) and super-refractory status epilepticus (SRSE). After standard antiseizure medications failed, hpCBD was administered via nasogastric tube as add-on therapy. Patients were followed for 6 months.

Why This Research Matters

Refractory and super-refractory status epilepticus are medical emergencies with high mortality and very few effective treatments. While CBD is approved for specific epilepsy syndromes, this is among the first evidence of its potential in acute status epilepticus, a setting where new treatment options are desperately needed.

The Bigger Picture

These cases expand the potential clinical applications of pharmaceutical-grade CBD beyond the chronic epilepsy syndromes for which it is already approved. The nasogastric delivery route is practical for ICU settings where patients cannot take oral medications. However, with only two cases, much more evidence is needed.

What This Study Doesn't Tell Us

Only two cases, making it impossible to draw generalizable conclusions. Multiple other treatments were being given simultaneously, so the contribution of hpCBD alone is uncertain. No control group or comparison. Drug interactions with concurrent antiseizure medications were not fully characterized.

Questions This Raises

  • ?What is the optimal dosing of hpCBD for status epilepticus?
  • ?How does it interact with other ICU-level antiseizure medications?
  • ?Would earlier administration of hpCBD improve outcomes?
  • ?Is the effect specific to certain seizure types or etiologies?

Trust & Context

Key Stat:
Both refractory and super-refractory SE resolved with add-on CBD, with no adverse events
Evidence Grade:
Case series of only two patients, providing initial clinical signal but no statistical power or controlled comparison.
Study Age:
Published in 2025.
Original Title:
Effectiveness of Highly Purified Cannabidiol in Refractory and Super-Refractory Status Epilepticus: A Case Series.
Published In:
CNS & neurological disorders drug targets, 24(2), 158-163 (2025)
Database ID:
RTHC-06346

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-Control
Cross-Sectional / Observational
Case Report / Animal StudyOne case or non-human subjects
This study

Describes what happened to one person or a small group.

What do these levels mean? →

Frequently Asked Questions

What is status epilepticus?

It is a medical emergency where seizures last for an extended period or occur so frequently that the brain does not recover between them. Refractory SE does not respond to first- and second-line treatments; super-refractory SE persists despite anesthesia.

Is this the same CBD product used for other epilepsies?

Yes, highly purified CBD (brand name Epidiolex) is already approved for Lennox-Gastaut syndrome, Dravet syndrome, and Tuberous Sclerosis Complex. This report describes its use in a new clinical setting.

Read More on RethinkTHC

Cite This Study

RTHC-06346·https://rethinkthc.com/research/RTHC-06346

APA

Di Mauro, Giovanni; Vietri, Giovanni; Quaranta, Loreta; Placidi, Fabio; Izzi, Francesca; Castelli, Alessandro; Pagano, Andrea; Leonardis, Francesca; De Angelis, Viviana; Bianco, Ciro; Celeste, Maria Grazia; Mercuri, Nicola Biagio; Liguori, Claudio. (2025). Effectiveness of Highly Purified Cannabidiol in Refractory and Super-Refractory Status Epilepticus: A Case Series.. CNS & neurological disorders drug targets, 24(2), 158-163. https://doi.org/10.2174/0118715273304077240603115521

MLA

Di Mauro, Giovanni, et al. "Effectiveness of Highly Purified Cannabidiol in Refractory and Super-Refractory Status Epilepticus: A Case Series.." CNS & neurological disorders drug targets, 2025. https://doi.org/10.2174/0118715273304077240603115521

RethinkTHC

RethinkTHC Research Database. "Effectiveness of Highly Purified Cannabidiol in Refractory a..." RTHC-06346. Retrieved from https://rethinkthc.com/research/di-2025-effectiveness-of-highly-purified

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.