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The HIt HArd and hiT early in multiple sclerosis trial – HiHat trial

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-519700-28-01
Acronym
HiHat
Enrollment
50
Registered
2025-10-22
Start date
Unknown
Completion date
Unknown
Last updated
2025-10-22

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

Conditions

Patients with relapsing-remitting multiple sclerosis with less than 10 years disease duration.

Brief summary

The binary indicator of at least one treatment-related SAE (relationship ≥ possible) per participant.

Detailed description

Proportion of patients with a new MRI lesion at end of follow-up; and the average number of new T2 lesions per patient., Proportion of patients with a new relapse; and the proportion of patients with a steroid-treated relapse; and the annualized relapse rate during follow-up,, Proportion of patients with confirmed disability worsening; and the average change in EDSS (Expanded Disability Status Scale); and proportion of patients with worsened/unchanged/improved SDMT; and the average change in SDMT., The average change in pNfL and pGFAp., Proportion of patients with improved MSIS-29; and the average change in MSIS-29., Proportion of patients with mild/moderate adverse events with at least a probable relationship to the study medication (adverse reaction)

Interventions

DRUGCETIRIZINE
DRUGMETHYLPREDNISOLONE
DRUGRITUXIMAB
DRUGCLADRIBINE
DRUGPARACETAMOL

Sponsors

Region Uppsala
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to 64 Years

Design outcomes

Primary

MeasureTime frame
The binary indicator of at least one treatment-related SAE (relationship ≥ possible) per participant.

Secondary

MeasureTime frame
Proportion of patients with a new MRI lesion at end of follow-up; and the average number of new T2 lesions per patient., Proportion of patients with a new relapse; and the proportion of patients with a steroid-treated relapse; and the annualized relapse rate during follow-up,, Proportion of patients with confirmed disability worsening; and the average change in EDSS (Expanded Disability Status Scale); and proportion of patients with worsened/unchanged/improved SDMT; and the average change in SDMT., The average change in pNfL and pGFAp., Proportion of patients with improved MSIS-29; and the average change in MSIS-29., Proportion of patients with mild/moderate adverse events with at least a probable relationship to the study medication (adverse reaction)

Countries

Sweden

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026