This study is testing a new medicine called IMS001 for people with Multiple Sclerosis (MS), a disease that affects the brain and spinal cord. IMS001 is made from special cells known as mesenchymal stem cells (MSCs), which come from human embryos. These cells might help change the disease's path in people who don't respond well to regular treatments. The study is in Phase 1, which means it's mainly looking at safety and how the body tolerates the drug.

To join the study, you need to be between 18 and 65 years old, have a MS diagnosis, and not respond well to other treatments. You also need to be stable and able to have an MRI, a scan that helps doctors see inside the body. If you have allergies to certain medicines, a history of serious diseases, or are pregnant, you can't join.

• The study involves a single dose of IMS001.
• Participants need to be available for the entire study period.
• Being part of another study recently disqualifies you.