Table of contents
- Trial overview
- Who can participate
- What is being studied
- Study phase and design
- Endpoints being measured
- Trial status and size
Trial overview
The HiHat trial is an interventional study of ACICLOVIR SODIUM in people with relapsing-remitting multiple sclerosis.[1] The trial is authorised and is designed as a Phase 2 study.[1]
Who can participate
This study is for patients with relapsing-remitting multiple sclerosis and a disease duration of less than 10 years.[1] In simple terms, this means the trial is focused on people whose multiple sclerosis started relatively recently and follows a pattern of flare-ups and recovery periods.[1]
What is being studied
The main goal is to see whether the serious adverse event rate linked to sequential treatment with rituximab followed by cladribine is acceptably low.[1] A serious adverse event is a harmful medical problem that is important enough to be considered serious, and the study counts events that are at least possibly related to treatment.[1]
ACICLOVIR SODIUM is part of the treatment set used in the study, together with cetirizine, methylprednisolone, rituximab, cladribine, sulfamethoxazole and trimethoprim, and paracetamol.[1]
Study phase and design
This is a Phase 2 interventional trial, which means researchers are actively giving treatments and then measuring what happens in the study group.[1] The trial includes 50 participants.[1]
Endpoints being measured
The primary endpoint is a binary indicator of at least one treatment-related serious adverse event per participant.[1] A binary indicator is a yes-or-no result, so each participant is counted as either having at least one event or not having one.[1]
Trial status and size
The study status is Authorised, which means it has been approved to proceed in the setting described in the trial record.[1] The planned enrollment is 50 people, which makes it a relatively small study focused on early safety information.[1]



