Multiple sclerosis (MS) is a chronic disease in which inflammation develops in the central nervous system (brain and spinal cord). In MS, this central nervous system cannot process certain signals properly because the protective coating on nerve cells (called myelin) is damaged. The aim of this study compound is to slow down the development of disabilities that MS can cause and to improve the functioning of the nervous system.
The purpose of this study is to investigate how quickly and to what extent the study compound is taken up, modified, distributed, and removed from the body. We will also look at the effects of the study compound in the body. The study compound has been used by humans before in four clinical trials. It has also been extensively tested in the laboratory and on animals.
The study consists of two parts: Part 1 and Part 2. You can only participate in one group of one part. In both parts you will be given the compound as a drink of 20 milliliters. In Part 1, the study compound will be tested at various dose levels. In this part we compare the effects of the study compound with the effects of placebo (a compound without any active ingredient).
In all groups of Part 1, cerebrospinal fluid will be collected from you at 3 different times during the stay through a lumbar puncture. This involves inserting a thin needle between two vertebrae in the lower back. This procedure is not entirely without risk. Collecting this fluid is important because it provides an indication of the levels of the investigational drug and its possible effects in the brain before and after each dose of the drug. The lumbar puncture will be performed by an experienced specialist.
To see if we can properly collect this cerebrospinal fluid from you, an MRI scan will be done at a second visit as part of the screening visit.