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Related Experiment Videos

Vigabatrin withdrawal randomized study in children

C Chiron1, O Dulac, L Gram

  • 1Neuropediatric Department, INSERM U29, University René Descartes, Hospital Saint Vincent de Paul, Paris, France.

Epilepsy Research
|November 1, 1996
PubMed
Summary
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This study demonstrates the feasibility of a novel randomized withdrawal design for evaluating vigabatrin (VGB) in children with refractory epilepsy. The design confirmed VGB

Area of Science:

  • Pediatric Neurology
  • Clinical Pharmacology

Background:

  • Controlled trials for new antiepileptic drugs in children are challenging.
  • Randomized withdrawal designs offer a method to compare drugs against placebo without delaying treatment.

Purpose of the Study:

  • To assess the efficacy and feasibility of a randomized withdrawal design for vigabatrin (VGB) in pediatric epilepsy.
  • To provide the first controlled study of VGB in children using this novel trial methodology.

Main Methods:

  • A randomized withdrawal design was employed in 28 children (1.5-18.5 years) with refractory epilepsy partially responding to VGB.
  • Patients were randomized to continue VGB or receive a placebo for 2 months, with seizure frequency compared to a pre-randomization period.

Main Results:

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  • Significantly more patients remained in the study receiving VGB (93%) compared to placebo (46%) (P < 0.01).
  • Seizure frequency was significantly lower in the VGB group than the placebo group (P < 0.05).
  • No cases of status epilepticus occurred during VGB withdrawal.

Conclusions:

  • The randomized withdrawal design is feasible and effective for studying antiepileptic drugs in children.
  • This study provides the first controlled evidence of vigabatrin's efficacy in pediatric epilepsy using this design.
  • The methodology could be valuable for future clinical trials in childhood epilepsy.