Comparison · NCT00510783-c7843314
Phenytoin/Fosphenytoin vs Levetiracetam: Number of Participants Who Experienced a Recurrent Seizure After Treatment.
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
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ConductScience Library. Phenytoin/Fosphenytoin vs Levetiracetam: Number of Participants Who Experienced a Recurrent Seizure After Treatment. Trial comparisons, record NCT00510783-c7843314. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT00510783-c7843314
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Measures6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note |
|---|---|---|---|---|---|
| Risk in group 1 | 0.0244 | 0.00671 | 0.0846 | wilson | |
| Risk in group 2 | 0.0395 | 0.0135 | 0.11 | wilson | |
| Risk difference, group 1 minus group 2 | -0.0151 | -0.0875 | 0.0505 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.618 | 0.106 | 3.6 | log | |
| Odds ratio, group 1 over group 2 | 0.608 | 0.0989 | 3.74 | log | |
| Number needed to treat, for one fewer participant with the outcome on Phenytoin/Fosphenytoin than on Levetiracetam | 66.3 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Phenytoin/Fosphenytoin | Patients in the control arm will receive either IV Dilantin (1 gram of IV phenytoin infused at 25 mg/min or slower depending on vitals) or IV Fosphenytoin (1 gram of IV Fosphenytoin infused at 15 mg/min or slower depending on vitals). | 2 | 82 | OG000 |
| Group 2 | Levetiracetam | Patients in the intervention arm will receive IV Keppra (1 gram of Keppra added to 100 mL diluent infused over 15 minutes). | 3 | 76 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- PRIMARY
- Title
- Number of Participants Who Experienced a Recurrent Seizure After Treatment.
- Description
- Recurrent seizure is defined as a seizure within 24 hours of treatment in the Emergency Department.
- Time frame
- 24 hours
- Population
Source ClinicalTrials.gov
Trial
- Title
- IV Keppra in the Emergency Department for Prevention of Early Recurrent Seizures
- NCT number
- NCT00510783
- Phases
- PHASE4
- Conditions
- Tonic-clonic Seizure
- Interventions
- Keppra, Fosphenytoin, Dilantin
- Lead sponsor
- Emory University
- Results first posted
- 2013-08-05
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT00510783?tab=results
Source ClinicalTrials.gov
Source
- Release
- trial-comparisons-2026-03-23-0.1.0
- Release manifest SHA-256
- f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
- AACT copy
- 2026-03-23
- Tables read
- outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet
Source ClinicalTrials.gov
Sources 2
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.
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