Table of contents
- Trial overview
- Who is being studied
- Study design and phase
- What the trial measures
- Treatments used in the study
- Patient-friendly terms
Trial overview
This clinical trial is studying Live Bcg Bacilli (Bacillus Calmette-Guerin), Brasilian Moreau Substrain in people with Radiologically Isolated Syndrome (RIS).[1] The study is authorised and is listed as a Phase 2 trial.[1] It is designed to look at MRI changes over time, especially the number of new active lesions seen during follow-up.[1]
Who is being studied
The target population is people with RIS.[1] RIS means MRI findings look similar to a disease pattern even though the person may not yet have clear symptoms.[1] The trial data provided here do not list extra eligibility details such as age limits or other health rules.[1]
Study design and phase
This is an interventional study, which means participants receive a study treatment or a control so researchers can compare outcomes.[1] The trial includes 100 participants.[1] As a Phase 2 study, it is mainly focused on learning more about whether the approach may help in this specific group.[1]
What the trial measures
The main endpoint is the cumulative number of CUAL on MRI scans over 1 year.[1] CUAL stands for combined unique new active lesions, which means new MRI lesions that are counted together as a main measure of disease activity.[1] The brief study summary says these lesions are defined as new gadolinium T1-weighted and T2-weighted new and newly non-enhancing expansion findings.[1]
Treatments used in the study
The intervention list includes Live Bcg Bacilli (Bacillus Calmette-Guerin), Brasilian Moreau Substrain and a saline solvent control.[1] The trial data describe the solvent as sodium chloride 0.9% for parenteral use, and both listed products are given by intradermal use.[1] The source data do not provide more treatment details beyond these study materials.[1]
Patient-friendly terms
Radiologically Isolated Syndrome means the MRI shows changes that may look important, but the person may not yet feel sick or have clear symptoms.[1] MRI is a scan that makes detailed pictures of the brain and can help doctors track changes over time.[1] A lesion is an area on the scan that looks different from normal tissue.[1] A primary endpoint is the main result researchers plan to measure in the study.[1]
Study focus in simple words
In simple terms, this trial is trying to see how MRI findings change over 1 year in people with RIS who are part of the study.[1] The main question is whether the number of new active MRI lesions can be measured and compared during follow-up.[1] The study is not described here as a treatment guide, but as a research project focused on MRI outcomes in a specific patient group.[1]



