Dexamethasone for tick-borne encephalitis

Treatment With Dexamethasone in Patients With Tick-borne Encephalitis: Randomized Clinical Trial

PHASE3 · University Medical Centre Ljubljana · NCT07584525

This trial will see if dexamethasone helps adults with confirmed tick-borne encephalitis who have meningitis, encephalitis, or meningomyelitis.

Quick facts

PhasePHASE3
Study typeInterventional
Enrollment200 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Medical Centre Ljubljana (other)
Drugs / interventionschemotherapy
Locations1 site (Ljubljana)
Trial IDNCT07584525 on ClinicalTrials.gov

What this trial studies

This is a Phase 3 interventional study conducted at the University Medical Centre Ljubljana comparing dexamethasone to saline in patients with confirmed tick-borne encephalitis. Eligible participants are adults with clinical signs of meningoencephalitis or meningomyelitis, cerebrospinal fluid pleocytosis, and serologic confirmation of tick-borne encephalitis virus infection. Key exclusions include pregnancy, recent systemic corticosteroid use, significant pre-existing neurological impairment, immunosuppression, recent peptic ulcer disease or major GI bleeding, uncontrolled diabetes, ventricular shunt, and certain antivirals. Participants receive either dexamethasone or saline alongside standard care and are followed for clinical and laboratory indicators of recovery and complications.

Who should consider this trial

Good fit: Adults aged 18 years or older with clinical meningoencephalitis or meningomyelitis, cerebrospinal pleocytosis, and serological confirmation of tick-borne encephalitis are the intended participants.

Not a fit: Patients who are pregnant, recently treated with systemic corticosteroids, severely neurologically impaired before infection, immunosuppressed, have a recent peptic ulcer or major GI bleed, uncontrolled diabetes, a ventricular shunt, or are receiving excluded antivirals are unlikely to qualify or benefit from enrollment.

Why it matters

Potential benefit: If successful, dexamethasone could reduce central nervous system inflammation and improve neurological recovery in affected patients.

How similar studies have performed: Prior research on corticosteroid use in tick-borne encephalitis is limited and inconclusive, so the benefit of this approach is not yet established.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* age 18 years or older and
* clinical signs and symptoms of meningoencephalitis or meningomyelitis and
* cerebrospinal pleocytosis and
* serological confirfmation of tick-borne encephalitis virus infection

Exclusion Criteria:

* pregnancy or
* severe neurological impairment befor tick-borne encephalitis or
* systemic corticosteroid treatment in the past 30 days or
* allergy to corticosteroids or
* immunosuppresive condition or therapy such as HIV with CD4 \< 200/ml, organ or bone marrow transplant, receiving chemotherapy, radiotherapy or any other immunosuppresive therapy, primary immunodeficiency, hematological maliganncy or
* ventricular shunt or
* endoscopically documented peptic gastric ulcer in the past six months or gastrointestinal bleeding with hemoglobin drop ≥ 20 units or
* uncontrolled diabetes with hyperglicemia or
* antiviral therapy with rilpivirin

Where this trial is running

Ljubljana

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Tick-Borne Encephalitis

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.