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Role of Dalfampridine in optic neuritis

Dalfampridine for improving visual function in acute demyelinating/autoimmune optic neuritis (DON)- A randomised placebo- controlled phase 2 trial - DON

Status
Recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2021/07/034725
Enrollment
220
Registered
2021-07-09
Start date
Unknown
Completion date
Unknown
Last updated
2022-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: G379- Demyelinating disease of central nervous system, unspecified

Interventions

Intervention1: Dalfampridine: 10 mg BD for 3 months, per oral route Control Intervention1: Placebo: BD dosing for 3 months, per oral route

Sponsors

Department of Health Research
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1.Clinical diagnosis of acute unilateral demyelinating optic neuritis 2.Visual acuity of 6/9 or less 3.Within 14 days of onset of symptoms 4.Willing to give consent

Exclusion criteria

Exclusion criteria: 1.Infective optic neuritis 2.Previous history of optic neuritis in either eye if vision not recovered fully to baseline before the current episode. 3. Clinical/biochemical evidence of hepatic/renal/cardiac dysfunction 4. Concurrent ocular disease 5. Patient already on concomitant immune therapies (except glatarimer acetate and interferon beta) in the 2 months preceding treatment 6.Seropositivity for Aquaporin-4 antibody 7. Past history of seizures, prolonged QTc or renal insufficiency (contraindications to dalfampridine) 8.Women of childbearing potential who are not using adequate contraception or who are pregnant/lactating

Design outcomes

Primary

MeasureTime frame
Improvement of visual acuity and colour vision at 1 monthTimepoint: Baseline, 1st month, 2nd month, 3rd month, 4th month, 5th month and 6th month

Secondary

MeasureTime frame
1.Contrast sensitivity 2.Visual field 3.Mean reduction in RNFL and GCPL in affected eye at 3 and 6 months compared with unaffected eye at baseline 4.Optic nerve cross-sectional area 5.Optic nerve lesion length 6. Latency and amplitude of visual evoked potentials 7. Adverse effectTimepoint: At baseline, 3rd month and 6th month.Optic nerve cross-sectional area and lesion length will be done only at baseline and 6th month.

Countries

India

Contacts

Public ContactDr Animesh Das

All India Institute of Medical Sciences, New Delhi

animeshdas05@gmail.com8317073946

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026