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Completed

NCT Number: NCT03197194

A Phase III Randomized, Blind, Double Dummy, Multicenter Study Assessing the Efficacy and Safety of IV THrombolysis (Alteplase) in Patients With acutE Central retInal Artery Occlusion

The aim of the THEIA study is to determine if Alteplase administrated within 4.5 hours improve visual deficit due to acute CRAO with a good safety profile.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

CH Annecy Genevois, Annecy, France

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients aged up to 18 years
  • CRAO diagnosis by fundoscopic examination or non-mydriatic retinophotography (NMR) performed by an ophthalmologist.
  • Blindness defined according to WHO classification as visual acuity <1/20 (20/400).
  • Treatment intervention should be initiated by a stroke team as quickly as possible and within 4.5 hours from symptom onset.
  • No clinical (e.g headache with jaw claudication or scalp tenderness, no temporal pulse) or laboratory evidence (elevated CRP) of giant cell arteritis
  • No clinical or radiological evidence of stroke within the last 3 months.
  • Patients covered by health care insurance (social security)
  • Written informed consent obtained.

Exclusion criteria

  • Symptoms onset more than 4.5 h prior to infusion start or undetermined time of symptom onset.
  • Minor VA deficit or VA rapidly improving before start of infusion.
  • CRAO without foveal ischemia.
  • Other retinal vascular disease: occlusion of branch of the CRA without significant VA loss, occlusion of the retinal vein, proliferative diabetic retinopathy or any other severe retinopathy.
  • Clinical or laboratory evidence of temporal arteritis.
  • Evidence of ICH or ischemic stroke on the pre-administration CT scan or MRI.
  • Pregnant or lactating women
  • Minors
  • Adults under guardianship or trusteeship
  • Any contraindication to alteplase
  • Any contraindication to aspirin

Treatment and study plan

alteplase

Drug

alteplase administered as an intravenous infusion (0.9 mg/kg; maximum dose 90 mg): 10% given as an IV bolus, followed immediately by the remaining given as an IV infusion over 1 hour.

Other names: Actilyse

acetylsalicylic acid

Drug

one tablet of aspirin 300 mg

Other names: Aspirin

Placebo oral tablet

Drug

One placebo oral tablet which doesn't contain the active ingredient acetyl salicylic acid

Other names: Placebo aspirin

Placebo IV

Drug

IV saline solution (0.9 %):10 mL in a syringe administered over 1 minute, followed by 50 mL as an infusion over 1 hour

Other names: Placebo Actilyse

Primary outcomes

  1. visual acuity (VA) improvement after treatment

    Time frame: 1 month

    Improvement of the VA is defined by a gain of 15 letters or more on the ETDRS VA chart or ordinal scale

Secondary outcomes

  1. Tolerance

    Time frame: 3 months

    Number, type and grade of severity of adverse drug reactions

  2. Proportion of blindness patients after treatment

    Time frame: 1 month

    Blindness is defined according to WHO revised categories of visual impairment, as VA < 1/20 (< 20/400 or > 1.3 log.MAR) or visual field < 10.

  3. Visual field

    Time frame: 3 months

    Visual field at 3 months.

  4. Time course of VA on ETDRS chart or ordinal scale

    Time frame: 3 months

  5. Time-to-treatment administration impact on VA evolution.

    Time frame: 1 month

    Mean VA improvement according to the time between onset of sign and treatment administration

  6. Global disability (modified Rankin scale) after treatment

    Time frame: 3 months

  7. Quality of life related to vision (NEI-VFQ-25) after treatment

    Time frame: 3 months

Sponsors and collaborators

Lead sponsor

Nantes University Hospital

Other

Registry information

Acronym: THEIA

Important dates

Study start
2018
Primary completion
2024
Study completion
2024
First posted
Jun 23, 2017
Registry last updated
Jan 24, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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