NCT03715881

Brief Summary

This randomized double-blind clinical trial is performed on all recent (within the last 5 days) NAION patients referred to hospitals affiliated to the Shahid Beheshti University of Medical Sciences, Iran. The patients will be equally and randomly assigned into two experimental groups and a control group. The first experimental group will receive 1000 units of erythropoietin every 12 hours for three days. The second experimental group will receive 50 mg of oral prednisolone from the onset of the disease for 1 week, with the dose gradually reduced within 2 weeks and then discontinued. In addition, the subjects in the second experimental group will receive 300 mg of ranitidine daily. The third group will receive placebo. Eye examination with color vision, perimetry, and peripapillary optical coherence tomography (to measure the thickness of the retinal nerve fiber layer) will be performed before the intervention, and 1, 3 and 6 months after the intervention. SITA standard visual field testing will be done using the Visual Field Analyzer Humphrey 750 Field (Carl Zeiss, USA). The thickness of the retinal nerve fiber layer will be measured by optical coherence tomography (Cirrus Zeiss Cirrus HD-OCT, Carl Zeiss, USA). The q-q plot and Kolmogorov-Smirnov tests will be performed to test normal distribution of data. Descriptive statistics including frequency, percentages, standard deviation, median and range will be used. Other statistical test including ANOVA, Kruskal-Wallis, Chi-Square, and Fischer's exact tests will be performed. All statistical analyses will be performed in SPSS (version 20) at significance level of 0.05.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
99

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Dec 2018

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 12, 2018

Completed
4 months until next milestone

First Posted

Study publicly available on registry

October 23, 2018

Completed
1 month until next milestone

Study Start

First participant enrolled

December 1, 2018

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2018

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2019

Completed
Last Updated

October 23, 2018

Status Verified

June 1, 2018

Enrollment Period

Same day

First QC Date

June 12, 2018

Last Update Submit

October 22, 2018

Conditions

Outcome Measures

Primary Outcomes (3)

  • Improvement in indices visual acuity compared to normal course of the disease

    Snellen visual acuity chart

    6 months after the intervention

  • Improvement in indices visual field

    Mean deviation and pattern standard deviation

    6 months after the intervention

  • Improvement in indices retinal nerve fiber thickness

    peripapillary Optical Coherence Tomography

    6 months after the intervention

Study Arms (2)

Oral prednisolone administration

ACTIVE COMPARATOR

50 mg oral prednisolone from the onset of the disease for 1 week, with the dose gradually reduced within 2 weeks and then discontinued

Drug: Oral prednisolone administration 50 mg

Intravenous Erythropoietin injection

ACTIVE COMPARATOR

2\. 1000 units of erythropoietin every 12 hours for three days

Drug: Intravenous Erythropoietin injection

Interventions

50 mg oral prednisolone from the onset of the disease for 1 week, with the dose gradually reduced within 2 weeks and then discontinued

Oral prednisolone administration

1000 units of erythropoietin every 12 hours for three days

Intravenous Erythropoietin injection

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • \- All NAION patients (maximum time of disease occurrence: 5 days) referred to emergency department of Labbafinejad, Torfeh and Imam Hossein hospitals

You may not qualify if:

  • Glaucoma or any ocular, neurologic or systemic disease affecting the vision
  • Abnormal laboratory test results such as ESR and CRP
  • History of ocular surgery
  • History of receiving medication for NAION
  • Uncontrolled systemic disease such as diabetes or hypertension
  • Contraindications of systemic steroids including active infection, active gastric ulcer, immunosuppression
  • Contraindications of erythropoietin administration, such as polycythemia
  • Unwillingness to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ophthalmic Research Center

Tehran, Iran

RECRUITING

Central Study Contacts

Homayon Nick khah, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor

Study Record Dates

First Submitted

June 12, 2018

First Posted

October 23, 2018

Study Start

December 1, 2018

Primary Completion

December 1, 2018

Study Completion

March 1, 2019

Last Updated

October 23, 2018

Record last verified: 2018-06

Locations