
In-body CAR-T therapy shows early promise against multiple sclerosis
A small NEJM trial reports that a single intravenous injection of a lentiviral vector instructs the body to generate CAR-T cells in vivo, which then deplete B cells and autoantibodies and correlate with improved motor and cognitive function, reduced fatigue, and lower inflammation in people with multiple sclerosis and other autoimmune diseases over about six months. This supports the concept of in‑vivo CAR-T therapy as a cheaper, faster approach, but efficacy must be confirmed in more participants.












