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Comparison · NCT01954121-sae

Levetiracetam (Safety Set) vs Carbamazepine-IR (Safety Set): serious adverse events

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. Levetiracetam (Safety Set) vs Carbamazepine-IR (Safety Set): serious adverse events. Trial comparisons, record NCT01954121-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01954121-sae

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Measures6

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

MeasureValue95% interval, lower95% interval, upperMethodNote
Risk in group 10.04130.02190.0766wilson
Risk in group 20.05120.02880.0893wilson
Risk difference, group 1 minus group 2-0.00988-0.05270.0319newcombe hybrid score
Risk ratio, group 1 over group 20.8070.3411.91log
Odds ratio, group 1 over group 20.7990.3241.97log
Number needed to treat, for one fewer participant with a serious adverse event on Levetiracetam (Safety Set) than on Carbamazepine-IR (Safety Set)101from the risk difference intervalthe interval includes no difference

Groups2

Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.

GroupTitleDescriptionWith the outcomeAnalysedClinicalTrials.gov code
Group 1Levetiracetam (Safety Set)
During the Up-Titration period (2 weeks), subjects initiated treatment at half the randomized target dose with Levetiracetam (LEV) 250 mg bid. During Stabilization and Evaluation Period (27 weeks) LEV was taken bid 500 mg.
9218EG000
Group 2Carbamazepine-IR (Safety Set)
During the Up-Titration period (2 weeks), subjects initiated treatment at half the randomized target dose with Carbamazepine immediate-release (CBZ-IR) 200 mg qd. During Stabilization and Evaluation (27 weeks) Period CBZ-IR was taken bid 200 mg.
11215EG001

Harm

What it counts
Total, serious adverse events
Time frame
Adverse Events (AEs) were collected from Visit 1 (Week 0) until Safety Follow Up Visit (Week 35).

Source ClinicalTrials.gov

Trial

Title
Open-label, Randomized, Active-controlled Study of LEV Used as Monotherapy in Patients With Partial-Onset Seizures
NCT number
NCT01954121
Phases
PHASE3
Conditions
Epilepsy, Partial Seizures
Interventions
Levetiracetam, Carbamazepine
Lead sponsor
UCB Pharma SA
Results first posted
2016-08-11

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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