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Completed Phase 3 Interventional Results available

A Study to Investigate the Efficacy and Safety of Cannabidiol (GWP42003-P; CBD) as Adjunctive Treatment for Seizures Associated With Lennox-Gastaut Syndrome in Children and Adults

ClinicalTrials.gov ID: NCT02224690

Public ClinicalTrials.gov record NCT02224690. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 22, 2026, 5:05 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Randomized, Double-blind, Placebo-controlled Study to Investigate the Efficacy and Safety of Cannabidiol (GWP42003-P; CBD) as Adjunctive Treatment for Seizures Associated With Lennox-Gastaut Syndrome in Children and Adults.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

To evaluate the efficacy of GWP42003-P as adjunctive treatment in reducing the number of drop seizures when compared with placebo, in participants with Lennox-Gastaut Syndrome (LGS).

Study identification

NCT ID
NCT02224690
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Jazz Pharmaceuticals
Industry
Enrollment
171 participants

Conditions and interventions

Eligibility (public fields only)

Age range
2 Years to 55 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 28, 2015 (Actual)
Primary completion
Mar 18, 2016 (Actual)
Completion
Mar 18, 2016 (Actual)
Last update posted
Sep 28, 2022

2015 – 2016

United States locations

U.S. sites
17
U.S. states
14
U.S. cities
17
Facility City State ZIP Site status
Not listed Tampa Florida 33606 —
Not listed Atlanta Georgia 30328 —
Not listed Chicago Illinois 60611 —
Not listed Ames Iowa 50010 —
Not listed Iowa City Iowa 52242 —
Not listed Lexington Kentucky 40536 —
Not listed Boston Massachusetts 02114 —
Not listed Saint Paul Minnesota 55102 —
Not listed St Louis Missouri 63131 —
Not listed Lebanon New Hampshire 03756 —
Not listed Rochester New York 14642 —
Not listed The Bronx New York 10467 —
Not listed Philadelphia Pennsylvania 19104-4399 —
Not listed Dallas Texas 75251 —
Not listed Houston Texas 77030 —
Not listed Salt Lake City Utah 81143 —
Not listed Winchester Virginia 22601 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 7 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02224690, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 28, 2022 · Synced Oct 22, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT02224690 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →