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Pharmacogenetic Study for Topiramate-Induced Cognitive Dysfunction

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National Taiwan University

Status

Unknown

Conditions

Cognitive Dysfunction

Study type

Observational

Funder types

Other

Identifiers

NCT00731900
9561707009

Details and patient eligibility

About

Topiramate (TPM) is an antiepileptic drug with a unique mode of action that is often useful in patients refractory to other drugs. However its use is restricted by the high incidence of cognitive adverse drug reactions (ADRs) that are associated with TPM exposure. TPM has been shown to cause particular cognitive ADRs, characterized by verbal fluency, attention, working memory and language deficits, at a much higher rate than other antiepileptic drugs. There do not appear to be obvious differences between patients that do or do not experience cognitive ADRs when on TPM (e.g. age, sex, concomitant medications, diagnosis), which suggests a genetic contributor.

Enrollment

100 estimated patients

Sex

All

Ages

17 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • adult (>17 years old) patients with epilepsy or patients with migraine treated by topiramate

Exclusion criteria

  • allergy to topiramate
  • abnormal liver or renal function

Trial contacts and locations

1

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Central trial contact

Horng-Huei Liou, MD;PhD

Data sourced from clinicaltrials.gov

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