A Study to See the Effect of ICA-105665 in Photosensitive Epilepsy Patients

2014-07-23 21:12:45 | BioPortfolio


The purpose of this study is to determine the effects of ICA-105665 on the photoparoxysmal electroencephalography (EEG) response in photosensitive epilepsy patients exposed to intermittent photic stimulation.


Subjects with epilepsy with a documented photoparoxysmal response to intermittent photic stimulation will participate. Four subjects will be enrolled at each dose level and will receive a single dose of placebo and a single dose of ICA-105665 during the study, each followed by intermittent photic stimulation. The effects of ICA-105665 on the photoparoxysmal EEG response of each group will be reviewed before the dose is selected for each subsequent group of subjects.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Pharmacodynamics Study, Intervention Model: Crossover Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment


Photosensitive Epilepsy




Little Rock
United States





Results (where available)

View Results


Published on BioPortfolio: 2014-07-23T21:12:45-0400

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Medical and Biotech [MESH] Definitions

An anticonvulsant used for several types of seizures, including myotonic or atonic seizures, photosensitive epilepsy, and absence seizures, although tolerance may develop. It is seldom effective in generalized tonic-clonic or partial seizures. The mechanism of action appears to involve the enhancement of GAMMA-AMINOBUTYRIC ACID receptor responses.

Abnormal responses to sunlight or artificial light due to extreme reactivity of light-absorbing molecules in tissues. It refers almost exclusively to skin photosensitivity, including sunburn, reactions due to repeated prolonged exposure in the absence of photosensitizing factors, and reactions requiring photosensitizing factors such as photosensitizing agents and certain diseases. With restricted reference to skin tissue, it does not include photosensitivity of the eye to light, as in photophobia or photosensitive epilepsy.

A disorder characterized by the onset of myoclonus in adolescence, a marked increase in the incidence of absence seizures (see EPILEPSY, ABSENCE), and generalized major motor seizures (see EPILEPSY, TONIC-CLONIC). The myoclonic episodes tend to occur shortly after awakening. Seizures tend to be aggravated by sleep deprivation and alcohol consumption. Hereditary and sporadic forms have been identified. (From Adams et al., Principles of Neurology, 6th ed, p323)

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An anticonvulsant effective in tonic-clonic epilepsy (EPILEPSY, TONIC-CLONIC). It may cause blood dyscrasias.

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Epilepsy is defined as a disorder of brain function characterized by recurrent seizures that have a sudden onset.  (Oxford Medical Dictionary).  A seizure is caused by a sudden burst of excess electrical activity in the brain, causing a tempora...

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