Nordic PREdnisolon for VEstibular NeuriTis Study – an investigator-driven, triple blind, placebo controlled randomized trial

2025-522399-10-00 Protocol PREVENT Therapeutic confirmatory (Phase III) Authorised, recruitment pending

Status Authorised, recruitment pending · 3 EU/EEA countries · 17 sites · Protocol PREVENT

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Authorised, recruitment pending
Participants planned 404
Countries 3
Sites 17

Vestibular neuritis

Evaluate the effect on vestibular symptoms of a 10-day tapering oral prednisolone treatment compared to placebo in patients with vestibular neuritis.

Key facts

Sponsor
Region Vaesterbotten, Umea University
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Otorhinolaryngologic Diseases [C09], Diseases [C] - Nervous System Diseases [C10]
Decision date (initial)
2026-02-16
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Therapy

Evaluate the effect on vestibular symptoms of a 10-day tapering oral prednisolone treatment compared to placebo in patients with vestibular neuritis.

Secondary objectives 6

  1. Evaluate the impact on recovery rate of a 10-day tapering oral prednisolone treatment compared to placebo in patients with vestibular neuritis.
  2. Evaluate the impact on well-being, quality of life and everyday living and the long-term effect on vestibular symptoms of a 10-day tapering oral prednisolone treatment compared to placebo in patients with vestibular neuritis.
  3. Investigate the effect on lateral canal vestibuloccular reflex (VOR) recovery of a 10-day tapering oral prednisolone treatment compared to placebo in patients with vestibular neuritis.
  4. Investigate the effect on walking ability and balance of a 10-day tapering oral prednisolone treatment compared to placebo in patients with vestibular neuritis.
  5. Evaluate the frequency of benign paroxysmal positional vertigo (BPPV) after vestibular neuritis and if treatment with corticosteroids influence this.
  6. Investigate the health economic effects among Swedish participants of a 10-day tapering oral prednisolone treatment compared to placebo in patients with vestibular neuritis.

Conditions and MedDRA coding

Vestibular neuritis

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 7

  1. Age ≥18 years old
  2. Has given written consent to participate in the study
  3. New acute/subacute onset of sustained spinning or non-spinning vertigo of moderate to severe intensity with a duration of at least 3 hours
  4. Spontaneous peripheral vestibular nystagmus, i.e. horizontal-torsional, direction-fixed
  5. Reduced vestibulo-ocular reflex function on the side opposite the direction of the fast phase of the nystagmus
  6. Screening and inclusion within 7 days (inclusive) of onset of continuous symptoms
  7. Symptoms present at inclusion

Exclusion criteria 18

  1. Symptoms or signs indicating central neurological cause of vertigo, including cranial nerve symptoms outside the vestibular nerve (including sudden concomitant ipsilateral hearing loss)
  2. Current neurological disease severely affecting balance
  3. Any other contraindication to study drug
  4. Mental inability, reluctance or language difficulties that result in difficulty to comprehend study information and provide informed consent
  5. Among women of childbearing potential: Pregnancy or non-acceptance to take highly effective contraceptive measures during 14 days after inclusion
  6. Breast-feeding
  7. Ongoing treatment with corticosteroids, including recent intake due to vestibular neuritis (before randomization)
  8. History of type 1 diabetes mellitus or insulin-dependent type 2 diabetes mellitus
  9. History of bipolar disorder with hypomania or mania
  10. History of psychotic illness
  11. History of bleeding gastric ulcer
  12. Current vestibular disease severely affecting balance
  13. Hypersensitivity to active substance or excipient
  14. Ongoing systemic fungal infection, tuberculosis, or active bout of varicella, measles or other serious infection which may be exacerbated by immunosuppressive treatment
  15. Recent (4 weeks) or planned (within 2 weeks from randomization) vaccination with live vaccine
  16. Pheochromocytoma
  17. Systemic sclerosis
  18. Severe cardiac failure with pronounced fluid retention

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. The primary outcome measure is the between groups mean vertigo symptom scale short form (VSS-SF) score at 6 weeks after randomization.

Secondary endpoints 6

  1. Comparison of the between groups mean VSS-SF, DHI and EQ-5D-3L scores at 2 weeks after randomization.
  2. Comparison of the between groups mean DHI and EQ-5D-3L scores at 6 weeks and 3 and 12 months after randomization, and the between groups VSS-SF at 3 and 12 months after randomization.
  3. Comparison of the mean video head impulse test (vHIT) measured lateral canal VOR gain change from baseline to 6 weeks and the change in proportions with saccades from baseline to 6 weeks.
  4. Comparison of the between groups mean timed 25-foot walk test (T25-FW) at 6 weeks; the between groups mean body sway during standing and walking at 6 weeks; and the between groups mean number of seconds standing on a foam pad at 6 weeks.
  5. BPPV-tests and questionnaires at 6 weeks, comparing proportions with positive tests, and/or questionnaire-positive BPPV between treatment arms.
  6. Register-based search for health economic effects on all levels of care (primary, specialized) and society (sick leave).

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

Prednisolon Actavis 10 mg tabletter

PRD11998405 · Product

Active substance
Prednisolone
Pharmaceutical form
TABLET
Route of administration
ORAL
Max daily dose
60 mg milligram(s)
Max total dose
450 mg milligram(s)
Max treatment duration
10 Day(s)
Authorisation status
Authorised
ATC code
H02AB06 — PREDNISOLONE
Marketing authorisation
52713
MA holder
ACTAVIS GROUP PTC EHF.
MA country
Sweden
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
Over-encapsulation for blinding (Prednisolone tablets are encapsulated in gelatin capsules).

Placebo 1

Laktosmonohydrat SuperTab 11SD

N/A · Product

Other product name
N/A
Pharmaceutical form
N/A
ATC code
N/A — N/A
Marketing authorisation
N/A
MA holder
N/A
MA country
Iceland
Paediatric formulation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Region Vaesterbotten

Sponsor organisation
Region Vaesterbotten
Address
Koksvagen 11, Alidhem Alidhem
City
Umea
Postcode
907 37
Country
Sweden

Scientific contact point

Organisation
Region Vaesterbotten
Contact name
Jonatan Salzer

Public contact point

Organisation
Region Vaesterbotten
Contact name
Jonatan Salzer

Umea University

7 Total trials 4 Recruiting
Academic / Non-commercial
Sponsor organisation
Umea University
Address
Universitetstorget 4, Alidhem Alidhem
City
Umea
Postcode
907 36
Country
Sweden

Scientific contact point

Organisation
Umea University
Contact name
Jonatan Salzer

Public contact point

Organisation
Umea University
Contact name
Jonatan Salzer

Third parties 1

OrganisationCity, countryDuties
Aalborg University Hospital
ORG-100022335
Aalborg, Denmark On site monitoring

Sponsor responsibilities

Article 77 compliance
Region Vaesterbotten
Contact point sponsor
Region Vaesterbotten
Article 77 implementation
Region Vaesterbotten

Locations

3 EU/EEA countries · 17 investigational sites

By country

CountryMS statusPlanned subjectsSites
Denmark Authorised, recruitment pending 120 4
Norway Authorised, recruitment pending 40 1
Sweden Authorised, recruitment pending 244 12
Rest of world 0

Investigational sites

Denmark

4 sites · Authorised, recruitment pending
Aalborg University Hospital
ØNH-kirurgisk afdeling, Aalborg Universitetshospital, Havrevangen 1, 9000, Aalborg
Rigshospitalet
ØNH afdeling, Rigshospitalet, Copenhagen, Inge Lehmanns Vej 7, 2100, Copenhagen Oe
Esbjerg Og Grindsted Sygehus
ØNH afdeling, Esbjerg Sygehus, Finsensgade 35, 6700, Esbjerg
Region Midtjylland
ØNH-kirurgisk afdeling, Aarhus Universitetshospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N

Norway

1 site · Authorised, recruitment pending
Helse Bergen HF
ØNH-avdelingen, Haukeland universitetssykehus, Haukelandsveien 22, 5021, Bergen

Sweden

12 sites · Authorised, recruitment pending
Region Vaesternorrland
Geriatrik, neurologi och rehabiliteringskliniken, Sundsvalls sjukhus, Lasarettsvagen 21, 856 43, Sundsvall
Uppsala University Hospital
ÖNH-kliniken, Akademiska sjukhuset, Akademiska Sjukhuset, 751 85, Uppsala
Region Oerebro Laen
ÖNH-sektionen, Universitetssjukhuset Örebro, Sodra Grev Rosengatan, 701 85, Orebro
Region Skane Skanes Universitetssjukhus
ÖNH-kliniken, Skånes universitetssjukhus, Entregatan 7, 222 42, Lund
Region Vaesterbotten
Neuro-huvud-hals-centrum, Norrlands universitestssjukhus, Koksvagen 11, Alidhem, Umea
Soedra Aelvsborg Hospital Vaestra Goetalandsregionen
ÖNH-mottagning, Södra Älvsborgs sjukhus, Bramhultsvagen 53, Boras Gustav Adolf, Boras
Karolinska University Hospital
ME ÖNH Hörsel och Balans, Karolinska universitetssjukhuset, Halsovagen, Flemingsberg, Huddinge
Capio S:t Goerans Sjukhus AB
Neurologiska kliniken, Capio St Görans sjukhus, Sankt Goransplan 1, Vastermalm, Stockholm
Region Vaesternorrland
Sollefteå hälsocentral, Lasarettsvagen 21, 856 43, Sundsvall
Region Dalarna
ÖNH-kliniken, Falu lasarett, Vasagatan 27, Falu Kristine, Falun
Laenssjukhuset I Kalmar Region Kalmar Laen
ÖNH-kliniken, Kalmar länssjukhus, Lasarettsvagen 8, Kalmar S:t Johannes, Kalmar
Region Joenkoepings Laen
ÖNH-kliniken, Länssjukhuset Ryhov, Lanssjukhuset Ryhov, Sjukhusgatan, Jonkoping

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 21 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_BPPV_2025-522399-10-00 1
Protocol (for publication) D1_Protocol 2025-522399-10-00 1.1
Protocol (for publication) D1_Vestibular rehabilitation instructions_2025-522399-10-00 1
Protocol (for publication) D1_VSS-SF DHI EQ5D-3L_2025-522399-10-00 1
Recruitment arrangements (for publication) K1_Recruitment arrangements_DK 2
Recruitment arrangements (for publication) K1_Recruitment arrangements_NO 2
Recruitment arrangements (for publication) K1_Recruitment arrangements_SE 1
Subject information and informed consent form (for publication) L1_ICF_DK 1.1
Subject information and informed consent form (for publication) L1_SIS and ICF_NO 1.1
Subject information and informed consent form (for publication) L1_SIS and ICF_SE 1.2
Subject information and informed consent form (for publication) L1_SIS_DK 1.2
Subject information and informed consent form (for publication) L2 Oplysningspligt Aarhus 1
Subject information and informed consent form (for publication) L2_Information leaflet participants_DK 1
Subject information and informed consent form (for publication) L2_Oplysningspligt Aalborg 1
Subject information and informed consent form (for publication) L2_Oplysningspligt Esbjerg 1
Subject information and informed consent form (for publication) L2_Oplysningspligt Rigshospitalet 1
Summary of Product Characteristics (SmPC) (for publication) E1_SmPC Prednisolone 1
Summary of Product Characteristics (SmPC) (for publication) E1_SmPC Prednisolone_SE 1
Synopsis of the protocol (for publication) D1_Protocol synopsis DK 2025-522399-10-00 1.1
Synopsis of the protocol (for publication) D1_Protocol synopsis NO 2025-522399-10-00 1.1
Synopsis of the protocol (for publication) D1_Protocol synopsis SE 2025-522399-10-00 1.1

Application history

3 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-10-13 Sweden Acceptable
2026-02-11
2026-02-11
2 SUBSTANTIAL MODIFICATION SM-1 2026-04-02 Sweden Acceptable 2026-05-13
3 SUBSTANTIAL MODIFICATION SM-2 2026-04-02 Acceptable 2026-04-29