Assessing the Role of Mitochondrial Dysfunction in Primary Progressive Multiple Sclerosis

This study is investigating whether problems with energy-producing structures in cells called mitochondria play a role in primary progressive multiple sclerosis (PPMS) — a form of MS where symptoms gradually worsen from the start without relapses. Understanding this could lead to new treatments that protect nerve cells from damage. **You may be eligible if...** - You have been diagnosed with primary progressive multiple sclerosis (PPMS) or relapsing-remitting multiple sclerosis (RRMS) - You are able to give informed consent - You are 18 years of age or older **You may NOT be eligible if...** - You are under 18 years old - You do not have primary progressive or relapsing-remitting multiple sclerosis Talk to your doctor to see if this trial is right for you.