This clinical trial is focused on studying a rare disease called Vanishing White Matter (VWM), which affects the brain and is known to start in early childhood. The study is investigating the use of a medication called Guanabenz, which is taken in capsule form. The purpose of the study is to explore how safe and tolerable Guanabenz is for children with VWM, as well as to understand how the body processes the medication.
Participants in the study will take Guanabenz capsules by mouth. The study will monitor participants over a period of time to observe any side effects and to gather information on how the medication is absorbed and broken down in the body. The study will also use MRI scans to look at changes in the brain and will track the overall health and survival of the participants.
The study aims to provide valuable information about the potential benefits and risks of using Guanabenz for treating VWM in children. This research could help in developing better treatment options for this rare condition in the future.



The Netherlands