Page last updated: 2024-10-21

phenytoin and Optic Neuritis

phenytoin has been researched along with Optic Neuritis in 11 studies

Optic Neuritis: Inflammation of the optic nerve. Commonly associated conditions include autoimmune disorders such as MULTIPLE SCLEROSIS, infections, and granulomatous diseases. Clinical features include retro-orbital pain that is aggravated by eye movement, loss of color vision, and contrast sensitivity that may progress to severe visual loss, an afferent pupillary defect (Marcus-Gunn pupil), and in some instances optic disc hyperemia and swelling. Inflammation may occur in the portion of the nerve within the globe (neuropapillitis or anterior optic neuritis) or the portion behind the globe (retrobulbar neuritis or posterior optic neuritis).

Research Excerpts

ExcerptRelevanceReference
"A randomized trial of phenytoin in acute optic neuritis (ON) demonstrated a 30% reduction in retinal nerve fiber layer (RNFL) loss with phenytoin versus placebo."9.41Neurofilament results for the phase II neuroprotection study of phenytoin in optic neuritis. ( Altmann, DR; Blennow, K; Giovannoni, G; Gnanapavan, S; Grant, D; Hickman, SJ; Kapoor, R; Kuhle, J; Leppert, D; Raftopoulos, R; Zetterberg, H, 2021)
"Phenytoin has been shown to reduce the peripapillary retinal nerve fiber layer (pRNFL) loss in optic neuritis (ON)."9.34Effect of phenytoin on retinal ganglion cells in acute isolated optic neuritis. ( Aghsaei Fard, M; Ghahvehchian, H; Gholizade, A; Yadegari, S, 2020)
" Patients with acute optic neuritis aged 18-60 years, presenting within 2 weeks of onset, with visual acuity of 6/9 or worse, were randomly assigned (1:1) by minimisation via a web-based service to oral phenytoin (maintenance dose 4 mg/kg per day if randomised before or on July 16, 2013, and 6 mg/kg per day if randomised on or after July 17, 2013) or placebo for 3 months, stratified by time from onset, centre, previous multiple sclerosis diagnosis, use of disease-modifying treatment, and use of corticosteroids for acute optic neuritis."9.22Phenytoin for neuroprotection in patients with acute optic neuritis: a randomised, placebo-controlled, phase 2 trial. ( Altmann, DR; Gandini Wheeler-Kingshott, CA; Giovannoni, G; Hickman, SJ; Hoggard, N; Kapoor, R; Koltzenburg, M; Malladi, P; Mallik, S; Miller, DH; Paling, D; Raftopoulos, R; Sarrigiannis, PG; Schmierer, K; Sharrack, B; Sheridan, R; Toosy, A; Yiannakas, MC, 2016)
"A randomized trial of phenytoin in acute optic neuritis (ON) demonstrated a 30% reduction in retinal nerve fiber layer (RNFL) loss with phenytoin versus placebo."5.41Neurofilament results for the phase II neuroprotection study of phenytoin in optic neuritis. ( Altmann, DR; Blennow, K; Giovannoni, G; Gnanapavan, S; Grant, D; Hickman, SJ; Kapoor, R; Kuhle, J; Leppert, D; Raftopoulos, R; Zetterberg, H, 2021)
"Phenytoin has been shown to reduce the peripapillary retinal nerve fiber layer (pRNFL) loss in optic neuritis (ON)."5.34Effect of phenytoin on retinal ganglion cells in acute isolated optic neuritis. ( Aghsaei Fard, M; Ghahvehchian, H; Gholizade, A; Yadegari, S, 2020)
" Patients with acute optic neuritis aged 18-60 years, presenting within 2 weeks of onset, with visual acuity of 6/9 or worse, were randomly assigned (1:1) by minimisation via a web-based service to oral phenytoin (maintenance dose 4 mg/kg per day if randomised before or on July 16, 2013, and 6 mg/kg per day if randomised on or after July 17, 2013) or placebo for 3 months, stratified by time from onset, centre, previous multiple sclerosis diagnosis, use of disease-modifying treatment, and use of corticosteroids for acute optic neuritis."5.22Phenytoin for neuroprotection in patients with acute optic neuritis: a randomised, placebo-controlled, phase 2 trial. ( Altmann, DR; Gandini Wheeler-Kingshott, CA; Giovannoni, G; Hickman, SJ; Hoggard, N; Kapoor, R; Koltzenburg, M; Malladi, P; Mallik, S; Miller, DH; Paling, D; Raftopoulos, R; Sarrigiannis, PG; Schmierer, K; Sharrack, B; Sheridan, R; Toosy, A; Yiannakas, MC, 2016)
"Phenytoin is a non-sedative barbiturate derivate and has been recently rediscovered as a neuroprotective and retinoprotective compound in patients affected by optic neuritis secondary to multiple sclerosis."4.98The retinoprotective role of phenytoin. ( Bartollino, S; Chiosi, F; Costagliola, C; di Staso, S; Hesselink, JMK; Pascotto, A; Rinaldi, M; Uva, M, 2018)

Research

Studies (11)

TimeframeStudies, this research(%)All Research%
pre-19905 (45.45)18.7374
1990's0 (0.00)18.2507
2000's0 (0.00)29.6817
2010's4 (36.36)24.3611
2020's2 (18.18)2.80

Authors

AuthorsStudies
Yadegari, S1
Gholizade, A1
Ghahvehchian, H1
Aghsaei Fard, M1
Raftopoulos, R2
Kuhle, J1
Grant, D1
Hickman, SJ2
Altmann, DR2
Leppert, D1
Blennow, K1
Zetterberg, H1
Kapoor, R2
Giovannoni, G2
Gnanapavan, S1
Chiosi, F2
Keppel Hesselink, J1
Rinaldi, M2
Di Staso, S2
Bartollino, S2
Costagliola, C2
Uva, M1
Pascotto, A1
Hesselink, JMK1
Saidha, S1
Calabresi, PA1
Toosy, A1
Sharrack, B1
Mallik, S1
Paling, D1
Yiannakas, MC1
Malladi, P1
Sheridan, R1
Sarrigiannis, PG1
Hoggard, N1
Koltzenburg, M1
Gandini Wheeler-Kingshott, CA1
Schmierer, K1
Miller, DH1
Addington, WW1
Igata, A1
Podos, SM2
Keltner, JL2
Becker, B1
Gay, AJ1
Ellenberger, C1
Burde, RM1

Clinical Trials (1)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
A Phase II Double Blind, Randomized, Placebo Controlled Trial of Neuroprotection With Phenytoin in Acute Optic Neuritis[NCT01451593]Phase 292 participants (Actual)Interventional2011-11-30Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Reviews

3 reviews available for phenytoin and Optic Neuritis

ArticleYear
The retinoprotective role of phenytoin.
    Drug design, development and therapy, 2018, Volume: 12

    Topics: Antineoplastic Agents; Drug Discovery; Enzyme Inhibitors; Humans; Multiple Sclerosis; Neuroprotectiv

2018
[Ataxia associated with infections and toxicosis].
    Nihon rinsho. Japanese journal of clinical medicine, 1971, Volume: 29, Issue:8

    Topics: Abdomen; Adult; Animals; Ataxia; Cerebellar Ataxia; Cerebrovascular Disorders; Demyelinating Disease

1971
Glaucoma.
    Investigative ophthalmology, 1973, Volume: 12, Issue:1

    Topics: Acid-Base Equilibrium; Animals; Contact Lenses, Hydrophilic; Delayed-Action Preparations; Glaucoma;

1973

Trials

4 trials available for phenytoin and Optic Neuritis

ArticleYear
Effect of phenytoin on retinal ganglion cells in acute isolated optic neuritis.
    Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2020, Volume: 41, Issue:9

    Topics: Humans; Optic Neuritis; Phenytoin; Retina; Retinal Ganglion Cells; Tomography, Optical Coherence

2020
Neurofilament results for the phase II neuroprotection study of phenytoin in optic neuritis.
    European journal of neurology, 2021, Volume: 28, Issue:2

    Topics: Biomarkers; Humans; Intermediate Filaments; Neurofilament Proteins; Neuroprotection; Optic Neuritis;

2021
Phenytoin for neuroprotection in patients with acute optic neuritis: a randomised, placebo-controlled, phase 2 trial.
    The Lancet. Neurology, 2016, Volume: 15, Issue:3

    Topics: Adult; Double-Blind Method; Female; Humans; Male; Middle Aged; Neuroprotective Agents; Optic Neuriti

2016
Acute optic neuropathy. Treatment with diphenylhydantoin.
    Archives of ophthalmology (Chicago, Ill. : 1960), 1974, Volume: 91, Issue:6

    Topics: Administration, Oral; Adult; Aged; Capsules; Female; Humans; Ischemia; Male; Middle Aged; Optic Nerv

1974

Other Studies

4 other studies available for phenytoin and Optic Neuritis

ArticleYear
Phenytoin: its potential as neuroprotective and retinoprotective drug.
    British journal of clinical pharmacology, 2018, Volume: 84, Issue:1

    Topics: Animals; Anticonvulsants; Humans; Neuroprotective Agents; Optic Neuritis; Phenytoin; Retina

2018
Phenytoin in acute optic neuritis: neuroprotective or not?
    The Lancet. Neurology, 2016, Volume: 15, Issue:3

    Topics: Female; Humans; Male; Neuroprotective Agents; Optic Neuritis; Outcome Assessment, Health Care; Pheny

2016
The side effects and interactions of antituberculosis drugs.
    Chest, 1979, Volume: 76, Issue:6 Suppl

    Topics: Adult; Aminosalicylic Acid; Antitubercular Agents; Central Nervous System Diseases; Chemical and Dru

1979
Effect of diphenylhydantoin in ischemic optic neuritis.
    Transactions of the American Ophthalmological Society, 1972, Volume: 70

    Topics: Adult; Aged; Eye; Female; Fixation, Ocular; Follow-Up Studies; Humans; Ischemia; Kinetics; Male; Mid

1972