Title
A New Medicine to Treat Nonarteritic Anterior Ischemic Optic Neuropathy (NAION)
Dalfampridine Treatment for Nonarteritic Anterior Ischemic Optic Neuropathy (NAION)
Phase
Phase 4Lead Sponsor
Neuro-Ophthalmologic Associates, PCStudy Type
InterventionalStatus
Completed No Results PostedIndication/Condition
Non Arteritic Ischemic Optic NeuropathyIntervention/Treatment
dalfampridine ...Study Participants
20Determine whether dalfampridine (Ampyra) can improve visual function in patients who have had nonarteritic ischemic optic neuropathy (NAION) with stable visual impairment.
The aim of this study is to determine whether dalfampridine can improve visual function in patients who have had nonarteritic ischemic optic neuropathy (NAION) with stable visual impairment.
The objective of this double masked crossover study is to determine whether visual function can be improved in numerous parameters. This includes high contrast visual acuity, low contrast visual acuity, visual field, visual quality of life (VFQ-39), electrophysiology, multi focal electro retinography (mERG), visual evoked potential (VEP), and structure, spectral domain optical coherence tomography (OCT).
Based on the promising results of the use of dalfampridine in Multiple Sclerosis (MS) and in stroke, we hypothesize that the patients with chronic stable deficits after nonarteritic ischemic optic neuropathy (NAION) will have improved visual function with the administration of dalfampridine.
dalfampridine 10 mgs or placebo twice a day for two weeks, wash out period of two weeks, dalfampridine 10mgs or placebo twice a day for two weeks
placebo (sugar pill) twice a day for two weeks
Dalfampridine (ampyra) 10mgs twice a day (b.i.d.)for two weeks
Inclusion Criteria: NAION 6 months prior to enrollment visual acuity of 20/40 or worse Exclusion Criteria: Current use of Dalfampridine (Ampyra) Pregnancy History of seizures Renal Failure Not able to perform testing