Approval Probability
TA Base Rate
Adjusted LOA
ML Risk
Label indication TOPAMAX is indicated for: Epilepsy: initial monotherapy for the treatment of partial-onset or primary generalized tonic-clonic seizures in patients 2 years of age and older ( 1.1 ); adjunctive therapy for the treatment of partial-onset seizures, primary generalized tonic-clonic seizures, or seizures associated with Lennox-Gastaut syndrome in patients 2 years of age and older ( 1.2 ) Preventive treatment of migraine… FDA label
Also known as JNS019, Topamax
topiramate · 54 trials · 28 indications
The Z-Score indicates how many standard deviations (SD) a participant has from the population normal values. The body weight z-scores were designed to take into account the amount of weight gain that was expected due to normal growth in children and adolescents. Body weight data were converted to Z-scores using the Statistical Analysis System (SAS) programs provided by the Centers for Disease Control (CDC) for the calculation of the 2000 CDC growth charts. The mean (SD) change in Z scores from baseline up to Month 1 for the total safety population for all age cohorts combined were presented. A negative Z-score indicates values lower than the mean while a positive Z-score indicates values higher than the mean.
The Z-Score indicates how many SD a participant has from the population normal values. The body weight z-scores were designed to take into account the amount of weight gain that was expected due to normal growth in children and adolescents. Body weight data were converted to Z-scores using the SAS programs provided by the CDC for the calculation of the 2000 CDC growth charts. The mean (SD) change in Z scores from baseline up to Month 3 for the total safety population for all age cohorts combined were presented. A negative Z-score indicates values lower than the mean while a positive Z-score indicates values higher than the mean.
The Z-Score indicates how many SD a participant has from the population normal values. The body weight z-scores were designed to take into account the amount of weight gain that was expected due to normal growth in children and adolescents. Body weight data were converted to Z-scores using the SAS programs provided by the CDC for the calculation of the 2000 CDC growth charts. The mean (SD) change in Z scores from baseline up to Month 6 for the total safety population for all age cohorts combined were presented. A negative Z-score indicates values lower than the mean while a positive Z-score indicates values higher than the mean.
The Z-Score indicates how many SD a participant has from the population normal values. The body weight z-scores were designed to take into account the amount of weight gain that was expected due to normal growth in children and adolescents. Body weight data were converted to Z-scores using the SAS programs provided by the CDC for the calculation of the 2000 CDC growth charts. The mean (SD) change in Z scores from baseline up yo Month 9 for the total safety population for all age cohorts combined were presented. A negative Z-score indicates values lower than the mean while a positive Z-score indicates values higher than the mean.
The Z-Score indicates how many SD a participant has from the population normal values. The body weight z-scores were designed to take into account the amount of weight gain that was expected due to normal growth in children and adolescents. Body weight data were converted to Z-scores using the SAS programs provided by the CDC for the calculation of the 2000 CDC growth charts. The mean (SD) change in Z scores from baseline to Month 12 for the total safety population for all age cohorts combined were presented. A negative Z-score indicates values lower than the mean while a positive Z-score indicates values higher than the mean.
Z-Score was a statistical measure to evaluate how a single data point compares to a standard. It described whether a mean was above or below the standard and how unusual the measurement is with range from minus (-) 3 to plus (+) 3; 0 equal to (=) same mean, greater than (\>) 0 a greater mean, and less than (\<) 0 a lesser mean than the standard. Growth parameters were compared to a standard defined by CDC growth charts. The mean (SD) change in Z scores from baseline up to Month 1 for the total safety population for all age cohorts combined were presented. A negative Z-score indicates values lower than the mean while a positive Z-score indicates values higher than the mean.
Z-Score was a statistical measure to evaluate how a single data point compares to a standard. It described whether a mean was above or below the standard and how unusual the measurement is with range from -3 to +3; 0 =same mean, \>0 a greater mean, and \<0 a lesser mean than the standard. Growth parameters were compared to a standard defined by CDC growth charts. The mean (SD) change in Z scores from baseline up to Month 3 for the total safety population for all age cohorts combined were presented. A negative Z-score indicates values lower than the mean while a positive Z-score indicates values higher than the mean.
Z-Score was a statistical measure to evaluate how a single data point compares to a standard. It described whether a mean was above or below the standard and how unusual the measurement is with range from -3 to +3; 0 =same mean, \>0 a greater mean, and \<0 a lesser mean than the standard. Growth parameters were compared to a standard defined by CDC growth charts. The mean (SD) change in Z scores from baseline up to Month 6 for the total safety population for all age cohorts combined were presented.
Z-Score was a statistical measure to evaluate how a single data point compares to a standard. It described whether a mean was above or below the standard and how unusual the measurement is with range from -3 to +3; 0 =same mean, \>0 a greater mean, and \<0 a lesser mean than the standard. Growth parameters were compared to a standard defined by CDC growth charts. The mean (SD) change in Z scores from baseline up to Month 9 for the total safety population for all age cohorts combined were presented. A negative Z-score indicates values lower than the mean while a positive Z-score indicates values higher than the mean.
Z-Score was a statistical measure to evaluate how a single data point compares to a standard. It described whether a mean was above or below the standard and how unusual the measurement is with range from -3 to +3; 0 =same mean, \>0 a greater mean, and \<0 a lesser mean than the standard. Growth parameters were compared to a standard defined by CDC growth charts. The mean (SD) change in Z scores from baseline up to Month 12 for the total safety population for all age cohorts combined were presented. A negative Z-score indicates values lower than the mean while a positive Z-score indicates values higher than the mean.
The BMD was measured by dual energy X-ray absorptiometry (DEXA) for the posterior-anterior lumbar spine (L1\_L4) and total body less head area. The Z-Score is the number of standard deviations a participant's BMD differs from the average BMD of their age, sex and ethnicity. Positive scores indicate BMD above the mean; positive values are "best values" and negative values are "worst values". Positive changes from baseline indicated an improvement in condition.
The BMD was measured by DEXA for the posterior-anterior lumbar spine (L1\_L4) and total body less head area. The Z-Score is the number of standard deviations a participant's BMD differs from the average BMD of their age, sex and ethnicity. Positive scores indicate BMD above the mean; positive values are "best values" and negative values are "worst values". Positive changes from baseline indicated an improvement in condition.
The BMC is an estimate of the amount of mineral (such as calcium) in the bone, which was assessed by DEXA scan for the posterior-anterior lumbar spine (L1\_L4) and total body less head area. Positive changes from baseline indicated an improvement in condition.
The BMC is an estimate of the amount of mineral (such as calcium) in the bone, which was assessed by DEXA scan for the posterior-anterior lumbar spine (L1\_L4) and total body less head area. Positive changes from baseline indicated an improvement in condition.
An adverse event is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product.
As per 24-hour rule, if symptom of pain due to migraine continues for more than 24 hours, it should be considered as 2 or more migraine attacks considering the maximum duration up to 24 hours. If the interval between latest migraine attack (ending time) and previous migraine attack (onset time) is less than 24 hours, 2 migraine attacks should be considered as 1 migraine attack. If the onset of migraine was prevented by a rescue drug, it should be considered as 1 migraine attack even if aura had started. Mean change was calculated by subtracting baseline value from the mean of 6 months value.
| Arm | Type | Description |
|---|---|---|
| Topiramate | EXPERIMENTAL | Topiramate weight based dosing for participants 2 to less than (\<) 10 years of age not to exceed 350 mg/day (milligram per day), as tolerated; not to exceed 400 mg/day in participants 10-15 years of age, as tolerated. |
| Levetiracetam | ACTIVE_COMPARATOR | Levetiracetam weight based dosing for all participants 2-15 years of age, not to exceed 60 milligram per kilogram per day (mg/kg/day), as tolerated. The maximum recommended daily dosage is 3,000 milligram (mg). |
| 003 | EXPERIMENTAL | topiramate 25 mg/kg/day |
| 002 | EXPERIMENTAL | topiramate 15 mg/kg/day |
| 001 | EXPERIMENTAL | topiramate 5 mg/kg/day |
| 004 | EXPERIMENTAL | placebo placebo |
| Open Label Phase | EXPERIMENTAL | Topiramate treatment started with one tablet per day, taken in the evening, for the first 7 days of the OL phase. Each tablet contained 25 mg topiramate. After one week, the dose was raised to two tablets per day: one tablet was taken in the morning, the other in the evening. Until Week 26 |
| Double Blind and Roll Out Phase | EXPERIMENTAL | the trial medication consisted of topiramate 25 mg tablets or matching placebo tablets which were identical in appearance, taste and smell. DB randomisation phase (after the 26-weeks OL phase) were randomly allocated (1:1) to one of the two treatment groups (topiramate or placebo). The randomisation took place at Visit 6 (Week 26). |
| Topiramate (JNS019) 50 mg | EXPERIMENTAL | In titration period, topiramate 25 milligram (mg) tablet will be given once daily in evening orally for 7 days; then topiramate 25 mg tablet twice daily orally from Day 8 to Day 14; then topiramate 25 mg tablet twice daily along with matching placebo tablet once daily in the evening orally from Day 15 to Day 21; then topiramate 25 mg tablet along with matching placebo tablet twice daily orally from Day 22 to Day 28 and will be continued further for 18 weeks in the fixed dose period. |
| Topiramate 100 mg | EXPERIMENTAL | In titration period, topiramate 25 mg tablet will be given once daily in the evening orally for 7 days; then topiramate 25 mg tablet twice daily orally from Day 8 to Day 14; then topiramate 25 mg tablet twice daily (1 tablet in the morning and 2 tablets in the evening) orally from Day 15 to Day 21; then 2 topiramate 25 mg tablets twice daily orally from Day 22 to Day 28 and will be continued further for 18 weeks in the fixed dose period. |
| Placebo | PLACEBO_COMPARATOR | In titration period, matching placebo tablet will be given once daily in evening orally for 7 days; followed by matching placebo tablet twice daily orally from Day 8 to Day 14; followed by matching placebo tablet twice daily (1 tablet in the morning and 2 tablets in the evening) orally from Day 15 to Day 21; followed by 2 matching placebo tablets twice orally from Day 22 to Day 28 and will becontinued further for 18 weeks in the fixed dose period. |
| Topiramate + Naltrexone | EXPERIMENTAL | Combination of Topiramate and Naltrexone |
| Name | Type | Description |
|---|---|---|
| Topiramate | DRUG | Topiramate weight based dosing for participants 2 to \<10 years of age not to exceed 350 mg/day, as tolerated; not to exceed 400 mg/day in participants 10-15 years of age, as tolerated. |
| Levetiracetam | DRUG | Levetiracetam weight based dosing for all participants 2-15 years of age, not to exceed 60 mg/kg/day, as tolerated. The maximum recommended daily dosage is 3,000 mg. |
| placebo | DRUG | placebo |
| topiramate, phenytoin | DRUG | - |
| Topiramate - Placebo | DRUG | the trial medication consisted of topiramate 25 mg tablets or matching placebo tablets which were identical in appearance, taste and smell. DB randomisation phase (after the 26-weeks OL phase) were randomly allocated (1:1) to one of the two treatment groups (topiramate or placebo). The randomisation took place at Visit 6 (Week 26) |
| topiramate, propranolol | DRUG | - |
| Topiramate and Naltrexone | DRUG | Topiramate 200 mg and Naltrexone 50 mg |
| risperidone | DRUG | Twice daily, individualized dosing to stabilization at 1-6 mg/day. |
Inclusion Criteria: * Participant with a clinical diagnosis of new-onset or recent-onset epilepsy characterized by partial-onset seizures (POS) (with or without secondary generalization) or primary generalized tonic-clonic seizures (PGTCS) in accordance with criteria of the International League Aga...
Topiramate has been studied across several conditions, including epilepsy, migraine, bipolar disorder, alcoholism, binge eating, cocaine-related disorders, and diabetic neuropathies. Its clinical trial activity spans psychiatry and neurology, with completed studies in epilepsy, migraine, and bipolar disorder. The drug is a small molecule developed by Johnson & Johnson under the ticker JNJ.
Topiramate targets glutamate receptor subunits GRIA1, GRIA2, GRIA3, GRIA4, GRIK1, and GRIK5. It acts as an antagonist at these targets, which are AMPA and kainate receptor subunits involved in excitatory neurotransmission. This mechanism underlies its investigation across epilepsy, psychiatric, and neurological conditions.
Topiramate is developed by Johnson & Johnson, which trades under the ticker JNJ. The company has sponsored multiple clinical trials of the drug across epilepsy, migraine, and bipolar disorder indications.
Topiramate is in Phase 2 development overall, though individual trials have spanned Phase 1 through Phase 3. It is an investigational small molecule and is not described as FDA approved in the available development data. Fifteen trials are listed as completed, with no active trials currently reported.
Completed topiramate trials include NCT02201251, a Phase 3 safety study in children with recently diagnosed epilepsy; NCT01799590, a Phase 2 continuous treatment study in migraine; NCT01081795, a Phase 2 dose-finding study in migraine; and NCT00986336, a Phase 1 pharmacokinetic study in bipolar or schizoaffective disorders.