ClinicalTrials.gov record
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 May 5, 2026, 5:38 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.

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

Interventions

  • GWP42003-P 20 mg/kg/day Dose Drug
  • Placebo Drug

Drug

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 27, 2015
Primary completion
Mar 17, 2016
Completion
Mar 17, 2016
Last update posted
Sep 27, 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 27, 2022 · Synced May 5, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT02224690 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →