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Relationship Between Topiramate Use and Ocular Angle Status

The Chinese University of Hong Kong logo

The Chinese University of Hong Kong

Status and phase

Unknown
Phase 4

Conditions

Glaucoma, Angle-Closure

Treatments

Drug: Topiramate

Study type

Interventional

Funder types

Other

Identifiers

NCT00153699
CRE-2004.310

Details and patient eligibility

About

We test the hypothesis whether topiramate narrows the angles which may render Asians more likely to suffer from acute angle closure glaucoma.

Full description

Topiramate is approved for the treatment of epilepsy and prophylaxis of migraine attacks. There were case reports of acute angle closure glaucoma (AACG) associated with its use. AACG is particularly common in Asians because of a higher prevalence of narrow angle., we test the hypothesis whether topiramate narrows the angles which may render them more likely to suffer from AACG.

Enrollment

15 estimated patients

Sex

All

Ages

18 to 75 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Participants aged 18-75 with an indication for starting topiramate.

Exclusion criteria

  • Patients with known allergy or intolerance to topiramate.
  • Recent exposure to topiramate (<3 months).
  • Moderate to severe renal failure.
  • Known history of renal calculi or hepatic failure
  • Inability to give informed consent.
  • Pregnant women or women of child-bearing age who do not practise an acceptable means of contraception.
  • Patients known to have angle-closure glaucoma.

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Single Group Assignment

Masking

None (Open label)

Trial contacts and locations

2

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Data sourced from clinicaltrials.gov

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