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A Study of GWP42006 in People With Focal Seizures - Part A

Primary Purpose

Epilepsy, Focal Seizures

Status
Completed
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
GWP42006
Placebo
Sponsored by
Jazz Pharmaceuticals
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Epilepsy focused on measuring Cannabidivarin, CBDV, GWP42006

Eligibility Criteria

18 Years - 65 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

For inclusion in Part A of the study patients must fulfil ALL of the following criteria:

  • Male or female aged between 18 and 65 years, inclusive.
  • Well-documented history of focal epilepsy, with focal seizures as the primary seizure type, compatible electroencephalogram and clinical history.
  • Documented computerized tomography / magnetic resonance imaging that shows no progressive neurologic abnormality.
  • Has focal seizures despite prior treatment with at least two AEDs (whether as monotherapies or in combination).
  • Currently treated with one to three AEDs as follows:

    • Group 1 - subjects on inducer AEDs (and not on inhibitor AEDs)
    • Group 2 - subjects on inhibitor AEDs (and no on inducer AEDs)
    • Group 3 - subjects on AEDs that are neither inducers nor inhibitors.
  • All medications or interventions for epilepsy (including ketogenic diet and any neurostimulation devices for epilepsy) must have been stable for two weeks prior to screening and the patient is willing to maintain a stable regimen throughout the study.
  • Subject is willing to keep any factors expected to affect seizures stable (such as the level of alcohol consumption and smoking).

The patient may not enter Part A of the study if ANY of the following apply:

  • Time of onset of epilepsy treatment is less than two years prior to enrolment.
  • Episode(s) of status epilepticus during one year prior to screening.
  • History of pseudo-seizures.
  • Subject has clinically significant unstable medical conditions other than epilepsy.
  • Subject has an illness in the four weeks prior to screening or randomization, other than epilepsy, which in the opinion of the investigator would affect seizure frequency.
  • Subject has significantly impaired hepatic function at Visit 1.
  • Active suicidal plan/intent in the past six months, or a history of suicide attempt in the last two years, or more than one lifetime suicide attempt.
  • Subject is currently using or has in the past used recreational or medicinal cannabis, or cannabinoid based medications within the three months prior to screening and is unwilling to abstain for the duration for the study.
  • Subject has taken St John's Wort in the last two weeks and/or is unwilling to abstain throughout the study.
  • Subject has consumed grapefruit or grapefruit juice three days prior to randomization and/or unwilling to abstain in the three days prior to Visits A2 and A4.
  • Any known or suspected hypersensitivity to cannabinoids, sesame oil or any of the excipients of the IMP(s).
  • Subjects who have received an IMP within the 12 weeks prior to the screening visit.

Sites / Locations

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm Type

Experimental

Active Comparator

Experimental

Placebo Comparator

Placebo Comparator

Placebo Comparator

Arm Label

Group 1a

Group 2a

Group 3a

Group 1b

Group 2b

Group 3b

Arm Description

Subjects on inducer AEDs will administer GWP42006.

Subjects on inhibitor AEDs will administer GWP42006.

Subjects on AEDs that are neither inducers nor inhibitors will administer GWP42006.

Matching placebo control for Group 1a.

Matching placebo control for Group 2a.

Matching placebo control for Group 3a.

Outcomes

Primary Outcome Measures

Pharmacokinetic parameters of GWP42006 and metabolites: Cmax, Cmin, tmax, AUC(0-t), AUC(0-inf) and t1/2, in the presence of other AEDs.

Secondary Outcome Measures

Safety and tolerability of GWP42006 (incidence of adverse events).
The plasma concentration of concomitant AEDs.

Full Information

First Posted
February 13, 2015
Last Updated
December 19, 2022
Sponsor
Jazz Pharmaceuticals
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1. Study Identification

Unique Protocol Identification Number
NCT02369471
Brief Title
A Study of GWP42006 in People With Focal Seizures - Part A
Official Title
A Double Blind, Randomized, Placebo-controlled, Two-part Study to Investigate the Pharmacokinetics, Followed by Efficacy and Safety of GWP42006 as add-on Therapy in Patients With Inadequately Controlled Focal Seizures.
Study Type
Interventional

2. Study Status

Record Verification Date
December 2022
Overall Recruitment Status
Completed
Study Start Date
March 2015 (undefined)
Primary Completion Date
October 2015 (Actual)
Study Completion Date
November 2015 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Jazz Pharmaceuticals

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
To evaluate the pharmacokinetics, safety and tolerability of GWP42006 compared with placebo, in the presence of other antiepileptic drugs (AEDs).
Detailed Description
This is a double blind, randomized, placebo controlled, two-part study. Part A only will be described in this record. Subjects who satisfy all inclusion and none of the exclusion criteria will begin a 14-day baseline observation period followed by a 14-day treatment period. Subjects will be required to attend six study visits. A follow-up phone call will take place four weeks after last dose. Part A will enroll three groups of 10 subjects: Group 1 - subjects on inducer AEDs (and not on inhibitor AEDs) Group 2 - subjects on inhibitor AEDs (and not on inducer AEDs) Group 3 - subjects on AEDs that are neither inducers nor inhibitors. In each of the three groups subjects will be randomized to receive, in a 4:1 ratio, GWP42006 400 mg twice daily or matching placebo. Pharmacokinetic (PK) profiles for GWP42006 and metabolites will be collected on the first and last day of treatment. Samples will also be collected 24h and 72h after the last day of treatment. Subjects will be required to record a daily diary with information about their seizures, investigational medicinal product (IMP) and concomitant AED administration.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Epilepsy, Focal Seizures
Keywords
Cannabidivarin, CBDV, GWP42006

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
32 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Group 1a
Arm Type
Experimental
Arm Description
Subjects on inducer AEDs will administer GWP42006.
Arm Title
Group 2a
Arm Type
Active Comparator
Arm Description
Subjects on inhibitor AEDs will administer GWP42006.
Arm Title
Group 3a
Arm Type
Experimental
Arm Description
Subjects on AEDs that are neither inducers nor inhibitors will administer GWP42006.
Arm Title
Group 1b
Arm Type
Placebo Comparator
Arm Description
Matching placebo control for Group 1a.
Arm Title
Group 2b
Arm Type
Placebo Comparator
Arm Description
Matching placebo control for Group 2a.
Arm Title
Group 3b
Arm Type
Placebo Comparator
Arm Description
Matching placebo control for Group 3a.
Intervention Type
Drug
Intervention Name(s)
GWP42006
Other Intervention Name(s)
Cannabidivarin, CBDV
Intervention Type
Drug
Intervention Name(s)
Placebo
Primary Outcome Measure Information:
Title
Pharmacokinetic parameters of GWP42006 and metabolites: Cmax, Cmin, tmax, AUC(0-t), AUC(0-inf) and t1/2, in the presence of other AEDs.
Time Frame
Day 1 to Day 18
Secondary Outcome Measure Information:
Title
Safety and tolerability of GWP42006 (incidence of adverse events).
Time Frame
Day -14 to Day 43
Title
The plasma concentration of concomitant AEDs.
Time Frame
Day 1 and Day 15

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
For inclusion in Part A of the study patients must fulfil ALL of the following criteria: Male or female aged between 18 and 65 years, inclusive. Well-documented history of focal epilepsy, with focal seizures as the primary seizure type, compatible electroencephalogram and clinical history. Documented computerized tomography / magnetic resonance imaging that shows no progressive neurologic abnormality. Has focal seizures despite prior treatment with at least two AEDs (whether as monotherapies or in combination). Currently treated with one to three AEDs as follows: Group 1 - subjects on inducer AEDs (and not on inhibitor AEDs) Group 2 - subjects on inhibitor AEDs (and no on inducer AEDs) Group 3 - subjects on AEDs that are neither inducers nor inhibitors. All medications or interventions for epilepsy (including ketogenic diet and any neurostimulation devices for epilepsy) must have been stable for two weeks prior to screening and the patient is willing to maintain a stable regimen throughout the study. Subject is willing to keep any factors expected to affect seizures stable (such as the level of alcohol consumption and smoking). The patient may not enter Part A of the study if ANY of the following apply: Time of onset of epilepsy treatment is less than two years prior to enrolment. Episode(s) of status epilepticus during one year prior to screening. History of pseudo-seizures. Subject has clinically significant unstable medical conditions other than epilepsy. Subject has an illness in the four weeks prior to screening or randomization, other than epilepsy, which in the opinion of the investigator would affect seizure frequency. Subject has significantly impaired hepatic function at Visit 1. Active suicidal plan/intent in the past six months, or a history of suicide attempt in the last two years, or more than one lifetime suicide attempt. Subject is currently using or has in the past used recreational or medicinal cannabis, or cannabinoid based medications within the three months prior to screening and is unwilling to abstain for the duration for the study. Subject has taken St John's Wort in the last two weeks and/or is unwilling to abstain throughout the study. Subject has consumed grapefruit or grapefruit juice three days prior to randomization and/or unwilling to abstain in the three days prior to Visits A2 and A4. Any known or suspected hypersensitivity to cannabinoids, sesame oil or any of the excipients of the IMP(s). Subjects who have received an IMP within the 12 weeks prior to the screening visit.
Facility Information:
City
Havířov
Country
Czechia
City
Hradec Králové
Country
Czechia
City
Rychnov nad Kněžnou
Country
Czechia
City
Barcelona
Country
Spain
City
Birmingham
Country
United Kingdom
City
Dundee
Country
United Kingdom
City
Glasgow
Country
United Kingdom
City
Great Yarmouth
Country
United Kingdom
City
Stoke-on-Trent
Country
United Kingdom

12. IPD Sharing Statement

Learn more about this trial

A Study of GWP42006 in People With Focal Seizures - Part A

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