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Open-label Extension to Protocol 1042-0600

An Open-label Extension Study to Evaluate the Safety, Tolerability, and Efficacy of Ganaxolone as add-on Therapy in Adult Patients With Epilepsy Consisting of Uncontrolled Partial-onset Seizures.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00512317
Enrollment
123
Registered
2007-08-07
Start date
2007-06-30
Completion date
2013-09-30
Last updated
2023-01-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Epilepsies, Partial

Keywords

partial onset epilepsy, adult epilepsy, partial seizures, anticonvulsant, catamenial epilepsy, adult partial onset epilepsy

Brief summary

To allow open-label extension to patients who have completed Protocol 1042-0600.

Detailed description

This is an open-label study evaluating efficacy and safety of ganaxolone treatment in adults with partial onset epilepsy with or without secondary generalizations.

Interventions

DRUGganaxolone

liquid suspension dosed tid

Sponsors

Marinus Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 69 Years
Healthy volunteers
No

Inclusion criteria

1. Participants who have completed all scheduled clinical study visits in the previous protocol 1042-0600 and have been deemed eligible (no major adverse events thought to be drug related) by the Investigator. 2. Diagnosis of epilepsy with CPS with or without secondarily generalized seizures according to the International League Against Epilepsy \[ILAE\] Classification of Epileptic Seizures (1981). Diagnosis should have been established by clinical history and computerized tomography (CT) or magnetic resonance imaging (MRI) of the brain to rule out progressive structural lesions and electroencephalogram (EEG) or video EEG with results consistent with partial-onset epilepsy. 3. Male or female, 18 to 69 years of age (inclusive). \[Note: Participants who are \> 69 years of age but are of good health condition may be allowed to enter the study after discussion with and approval by the Medical Monitor.\] 4. A 12-lead electrocardiogram (ECG) without clinically significant abnormalities. 5. Be properly informed of the nature and risks of the study and give informed consent in writing, prior to entering the study. 6. Able to participate for the full term of study. 7. Able to keep a seizure diary throughout the course of the study. 8. Sexually active women of childbearing potential must be using a medically acceptable method of birth control and have a negative qualitative serum beta-human chorionic growth hormone (beta HCG) pregnancy test result from a blood sample collected at the initial screening visit. A woman of childbearing potential is defined as a female who is biologically capable of becoming pregnant. A medically acceptable method of birth control includes intrauterine devices in place for at least 3 months, surgical sterilization, or adequate barrier methods (e.g., diaphragm and foam). An oral contraceptive alone is not considered adequate for the purpose of this study. Use of oral contraceptives in combination with another method (e.g., a spermicidal cream) is acceptable. In participants who are not sexually active, abstinence is an acceptable form of birth control and qualitative serum βHCG pregnancy tests must be tested per protocol. 9. Participants with a history of depression must be stable and may be taking one antidepressant medication

Exclusion criteria

1. Presence of non-motor simple partial seizures only. 2. History of pseudoseizures in the last 5 years. 3. History of a primary generalized seizure in the last 5 years. 4. Past use of vigabatrin without stable visual fields tested twice over the 12 months after the last dose of vigabatrin (Concomitant use of vigabatrin is not allowed). 5. Seizures secondary to illicit drug or alcohol use, infection, neoplasm, demyelinating disease, degenerative neurological disease, or CNS disease deemed progressive, metabolic illness, or progressive degenerative disease. 6. Status epilepticus within the last year prior to randomization in 1042-0600 study. 7. Clinically unstable psychiatric disorder within the last 2 years. 8. Suicide attempt within the last 5 years or current significant suicidal ideation. 9. History of psychosis within the last 5 years. 10. Current use of neuroleptics for psychosis. 11. A significant medical or surgical condition at screening which might compromise the hematologic, cardiovascular, pulmonary, renal, gastrointestinal, or hepatic systems or other conditions that would place the participant at increased risk. 12. Known sensitivity or allergy to progesterone or related steroid compounds. 13. History of drug use or alcohol abuse within the past 5 years. 14. Sexually active women of childbearing potential (WCBP) who are unwilling to use a double-barrier method and establish that they are currently not pregnant by submitting to a serum pregnancy test. 15. A history of chronic noncompliance with drug regimens. 16. Females who are currently breastfeeding. 17. Exposure to any other investigational drug within 30 days prior to randomization in 1042-0600 study. 18. Aspartate transaminase (AST) or alanine transaminase (ALT) levels \> 3 times the upper limit of normal (ULN) at screening. 19. Participant has history of repetitive seizures within the 12-month period preceding study entry where the individual seizures cannot be counted. 20. Inability to withhold grapefruit and grapefruit juice from diet during the entire clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Percent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Baseline (Day 0) and Week 1 through Week 117Percent Change in weekly seizure frequency by treatment group compared to Baseline at the beginning of the double-blind study 1042-0600 is presented. Weekly seizure frequency included partial-onset seizures (POS) with or without secondary generalization, but not non-motor simple partial seizure (SPS) during Weeks 1 through Week 117. Baseline was defined as the Day 0 assessment before study drug infusion of the double-blind study 1042-0600.

Secondary

MeasureTime frameDescription
Number of Responders During Weeks 1 Through 117Baseline (Day 0) and Week 1 through Week 117Responders were defined as participants experiencing ≥50% of reduction in mean weekly seizure frequency from the Baseline. Baseline was defined as the Day 0 assessment before study drug infusion of the double-blind study 1042-0600.
Number of Seizure-free Days During Weeks 1 Through 117Week 1 through Week 117Average number of seizure-free days per week for a given period was calculated as follows: (Total number of days with no seizures of any type during that period / number of days with seizure diary in that period) multiplied by 7.
Number of Seizure-free ParticipantsDay 1 through Day 224 (Week 32)Number of Seizure-free participants is presented.
Change From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireBaseline (Day 0) and up to Week 104QOLIE-31 was a survey of health-related QOL for adults with epilepsy and evaluated how much distress the participant feels about problems and worries related to epilepsy. It included 38 items grouped into eight multi-item subscales - Energy/Fatigue, Emotional Well-Being, Daily Activities/Social Functioning, Cognitive Functioning, Medication Effect, Seizure Worry, Overall Quality of Life (QoL) and Distress. The subscale scores and the total score were calculated according to the scoring algorithm defined by the author with scores ranging from 0 to 100; higher scores indicated better function. Baseline was defined as the last non-missing observation prior to the first dose in double-blind study 1042-0600. Change from Baseline was calculated by subtracting Baseline value from the post-dose visit value.

Countries

United States

Participant flow

Pre-assignment details

Participants who completed the previous double-blind controlled trial (Protocol 1042-0600, NCT00465517) were enrolled in this study.

Participants by arm

ArmCount
Ganaxolone
Participants were administered GNX dose which ranged from 600 mg/day to 1500 mg/day oral liquid suspension. The dose titration schedule started with 300 mg three times daily (tid) (900 mg/day) and increased every 2 days by 100 mg tid (300 mg/day) to 500 mg tid (1500 mg/day). Participants who were able to tolerate the starting dose of 900 mg/day, were moved to increase dose of 1200 mg/day for 2 days, and then to 1500 mg/day until the optimal dose for efficacy and tolerability was achieved.
123
Total123

Withdrawals & dropouts

PeriodReasonFG000
Overall Study<50% reduction in seizure frequency on or after Visit 718
Overall StudyAdverse Event13
Overall StudyDiscretion of the investigator or sponsor2
Overall StudyInsufficient clinical response36
Overall StudyLost to Follow-up2
Overall StudyOther2
Overall StudySponsor closure of study21
Overall StudyWithdrawal by Subject23

Baseline characteristics

CharacteristicGanaxolone
Age, Continuous39.4 Years
STANDARD_DEVIATION 11.38
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
114 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
10 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
5 Participants
Race (NIH/OMB)
White
107 Participants
Sex: Female, Male
Female
79 Participants
Sex: Female, Male
Male
44 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 123
other
Total, other adverse events
103 / 123
serious
Total, serious adverse events
15 / 123

Outcome results

Primary

Percent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117

Percent Change in weekly seizure frequency by treatment group compared to Baseline at the beginning of the double-blind study 1042-0600 is presented. Weekly seizure frequency included partial-onset seizures (POS) with or without secondary generalization, but not non-motor simple partial seizure (SPS) during Weeks 1 through Week 117. Baseline was defined as the Day 0 assessment before study drug infusion of the double-blind study 1042-0600.

Time frame: Baseline (Day 0) and Week 1 through Week 117

Population: Intent-To-Treat (ITT) Population included all participants who received at least 1 dose of open-label study medication. Only participants who received at least 1 dose of ganaxolone in the open-label (OL) study (1042-0601), had seizure diary data for Baseline (from double-blind study 1042-0600), and who had data from at least 7 seizure diaries in the open-label study (1042-0601) were included. Only those participants with data available at the specified data points were analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >13-26-19.6 Percent ChangeStandard Deviation 42.38
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >26-39-37.7 Percent ChangeStandard Deviation 33.79
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >39-52-29.1 Percent ChangeStandard Deviation 51.26
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >78-91-38.8 Percent ChangeStandard Deviation 66.24
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >104-117-93.3 Percent Change
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks 1-10-14.8 Percent ChangeStandard Deviation 54.86
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks 1-13-14.0 Percent ChangeStandard Deviation 52.91
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >52-65-29.9 Percent ChangeStandard Deviation 51.85
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >65-78-41.4 Percent ChangeStandard Deviation 38.21
GNX/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >91-104-69.4 Percent ChangeStandard Deviation 43.96
PBO/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >13-26-19.8 Percent ChangeStandard Deviation 56.43
PBO/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >78-91-43.6 Percent ChangeStandard Deviation 37.6
PBO/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >26-39-48.6 Percent ChangeStandard Deviation 37.54
PBO/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks 1-13-13.7 Percent ChangeStandard Deviation 65.6
PBO/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >39-52-42.9 Percent ChangeStandard Deviation 59.81
PBO/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >91-104-100 Percent Change
PBO/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >65-78-67.7 Percent ChangeStandard Deviation 23.09
PBO/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks >52-65-43.1 Percent ChangeStandard Deviation 59.45
PBO/GNXPercent Change From Baseline in Weekly Seizure Frequency During Weeks 1 Through 117Weeks 1-10-12.3 Percent ChangeStandard Deviation 64.08
Secondary

Change From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) Questionnaire

QOLIE-31 was a survey of health-related QOL for adults with epilepsy and evaluated how much distress the participant feels about problems and worries related to epilepsy. It included 38 items grouped into eight multi-item subscales - Energy/Fatigue, Emotional Well-Being, Daily Activities/Social Functioning, Cognitive Functioning, Medication Effect, Seizure Worry, Overall Quality of Life (QoL) and Distress. The subscale scores and the total score were calculated according to the scoring algorithm defined by the author with scores ranging from 0 to 100; higher scores indicated better function. Baseline was defined as the last non-missing observation prior to the first dose in double-blind study 1042-0600. Change from Baseline was calculated by subtracting Baseline value from the post-dose visit value.

Time frame: Baseline (Day 0) and up to Week 104

Population: ITT Population. Only participants who received at least 1 dose of ganaxolone in the open-label study (1042-0601), had seizure diary data for Baseline (from double-blind study 1042-0600), and who had data from at least 7 seizure diaries in the open-label study (1042-0601) were included. Only those participants with data available at the specified data points were analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
GNX/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireEmotional Well-Being-4.7 Scores on a ScaleStandard Deviation 13.83
GNX/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireEnergy/Fatigue-5.7 Scores on a ScaleStandard Deviation 18.16
GNX/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireSocial Function-3.6 Scores on a ScaleStandard Deviation 24.67
GNX/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireCognitive2.1 Scores on a ScaleStandard Deviation 19.91
GNX/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireMedication Effect-3.9 Scores on a ScaleStandard Deviation 25.28
GNX/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireSeizure Worry3.6 Scores on a ScaleStandard Deviation 25.4
GNX/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireOverall QoL-3.8 Scores on a ScaleStandard Deviation 17.26
GNX/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireDistress-5.5 Scores on a ScaleStandard Deviation 18.49
PBO/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireDistress0.7 Scores on a ScaleStandard Deviation 21.92
PBO/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireEmotional Well-Being3.3 Scores on a ScaleStandard Deviation 22.13
PBO/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireCognitive2.9 Scores on a ScaleStandard Deviation 18.04
PBO/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireMedication Effect0.9 Scores on a ScaleStandard Deviation 26.85
PBO/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireEnergy/Fatigue3.9 Scores on a ScaleStandard Deviation 17.2
PBO/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireOverall QoL0.0 Scores on a ScaleStandard Deviation 15.17
PBO/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireSocial Function8.4 Scores on a ScaleStandard Deviation 21.44
PBO/GNXChange From Baseline in Quality of Life in Epilepsy Inventory-31 (QOLIE-31) QuestionnaireSeizure Worry-3.1 Scores on a ScaleStandard Deviation 35.73
Secondary

Number of Responders During Weeks 1 Through 117

Responders were defined as participants experiencing ≥50% of reduction in mean weekly seizure frequency from the Baseline. Baseline was defined as the Day 0 assessment before study drug infusion of the double-blind study 1042-0600.

Time frame: Baseline (Day 0) and Week 1 through Week 117

Population: ITT Population. Only subjects who received at least 1 dose of ganaxolone in the open-label study (1042-0601), had seizure diary data for Baseline (from double-blind study 1042-0600), and who had data from at least 7 seizure diaries in the open-label study (1042-0601) were included. Only those participants with data available at the specified data points were analyzed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks >52-658 Participants
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks >26-3911 Participants
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks >65-786 Participants
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks >39-5210 Participants
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks >78-914 Participants
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks >13-2612 Participants
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks >91-1043 Participants
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks 1-1022 Participants
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks >104-1171 Participants
GNX/GNXNumber of Responders During Weeks 1 Through 117Weeks 1-1319 Participants
PBO/GNXNumber of Responders During Weeks 1 Through 117Weeks >26-3912 Participants
PBO/GNXNumber of Responders During Weeks 1 Through 117Weeks 1-1312 Participants
PBO/GNXNumber of Responders During Weeks 1 Through 117Weeks >13-268 Participants
PBO/GNXNumber of Responders During Weeks 1 Through 117Weeks >39-5210 Participants
PBO/GNXNumber of Responders During Weeks 1 Through 117Weeks 1-1011 Participants
PBO/GNXNumber of Responders During Weeks 1 Through 117Weeks >52-658 Participants
PBO/GNXNumber of Responders During Weeks 1 Through 117Weeks >65-7811 Participants
PBO/GNXNumber of Responders During Weeks 1 Through 117Weeks >78-914 Participants
PBO/GNXNumber of Responders During Weeks 1 Through 117Weeks >91-1041 Participants
Secondary

Number of Seizure-free Days During Weeks 1 Through 117

Average number of seizure-free days per week for a given period was calculated as follows: (Total number of days with no seizures of any type during that period / number of days with seizure diary in that period) multiplied by 7.

Time frame: Week 1 through Week 117

Population: ITT Population. Only participants who received at least 1 dose of ganaxolone in the open-label study (1042-0601), had seizure diary data for Baseline (from double-blind study 1042-0600), and who had data from at least 7 seizure diaries in the open-label study (1042-0601) were included. Only those participants with data available at the specified data points were analyzed

ArmMeasureGroupValue (MEAN)Dispersion
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >104-1176.9 Seizure free days
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks 1-134.8 Seizure free daysStandard Deviation 1.97
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >13-265.1 Seizure free daysStandard Deviation 1.54
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >26-395.2 Seizure free daysStandard Deviation 1.69
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >39-525.4 Seizure free daysStandard Deviation 1.66
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >52-655.1 Seizure free daysStandard Deviation 2.11
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >78-915.4 Seizure free daysStandard Deviation 2.32
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks 1-104.8 Seizure free daysStandard Deviation 1.99
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >65-785.3 Seizure free daysStandard Deviation 1.93
GNX/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >91-1045.6 Seizure free daysStandard Deviation 2.56
PBO/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >65-785.7 Seizure free daysStandard Deviation 1.61
PBO/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks 1-135.0 Seizure free daysStandard Deviation 1.85
PBO/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >78-914.7 Seizure free daysStandard Deviation 1.88
PBO/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >13-265.3 Seizure free daysStandard Deviation 1.4
PBO/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks 1-105.0 Seizure free daysStandard Deviation 1.81
PBO/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >26-395.4 Seizure free daysStandard Deviation 1.75
PBO/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >52-655.2 Seizure free daysStandard Deviation 2.1
PBO/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >39-525.4 Seizure free daysStandard Deviation 1.56
PBO/GNXNumber of Seizure-free Days During Weeks 1 Through 117Weeks >91-1046.8 Seizure free days
Secondary

Number of Seizure-free Participants

Number of Seizure-free participants is presented.

Time frame: Day 1 through Day 224 (Week 32)

Population: ITT Population. Only participants who received at least 1 dose of ganaxolone in the open-label study (1042-0601), had seizure diary data for Baseline (from double-blind study 1042-0600), and who had data from at least 7 seizure diaries in the open-label study (1042-0601) were included. Only those participants with data available at the specified data points were analyzed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
GNX/GNXNumber of Seizure-free Participants>= 28 days (4 weeks)20 Participants
GNX/GNXNumber of Seizure-free Participants>=91 days (13 weeks)4 Participants
GNX/GNXNumber of Seizure-free Participants>=182 days (26 weeks)0 Participants
GNX/GNXNumber of Seizure-free Participants>=119 days (17 weeks)43 Participants
GNX/GNXNumber of Seizure-free Participants>= 56 days (8 weeks)6 Participants
GNX/GNXNumber of Seizure-free Participants>=133 days (19 weeks)3 Participants
GNX/GNXNumber of Seizure-free Participants>=224 days (32 weeks)0 Participants
GNX/GNXNumber of Seizure-free Participants>=154 days (22 weeks)3 Participants
GNX/GNXNumber of Seizure-free Participants>=70 days (10 weeks)4 Participants
GNX/GNXNumber of Seizure-free Participants>=1 day75 Participants
PBO/GNXNumber of Seizure-free Participants>=224 days (32 weeks)18 Participants
PBO/GNXNumber of Seizure-free Participants>=1 day41 Participants
PBO/GNXNumber of Seizure-free Participants>= 28 days (4 weeks)38 Participants
PBO/GNXNumber of Seizure-free Participants>= 56 days (8 weeks)33 Participants
PBO/GNXNumber of Seizure-free Participants>=182 days (26 weeks)20 Participants
PBO/GNXNumber of Seizure-free Participants>=70 days (10 weeks)31 Participants
PBO/GNXNumber of Seizure-free Participants>=91 days (13 weeks)29 Participants
PBO/GNXNumber of Seizure-free Participants>=119 days (17 weeks)27 Participants
PBO/GNXNumber of Seizure-free Participants>=133 days (19 weeks)27 Participants
PBO/GNXNumber of Seizure-free Participants>=154 days (22 weeks)25 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026