Welcome to Connect, @tomatoes CAR-T (Chimeric Antigen Receptor T-cell) therapy is primarily used for certain types of blood cancers, such as leukemia and lymphoma. While there’s ongoing testing for other applications, including myeloproliferative disorders such as MF, it hasn’t been approved by the US FDA yet…
Since you’re a new member to the forum you’re not able to post links for a few days. But I think I found the CAR-T site you were talking about in the UK.

~Blood Cancer UKhttps://bloodcancer.org.uk/research/research-projects/using-car-t-cell-techniques-to-treat-myelofibrosis/

Reading through the article, using CAR-T for MF is still in research phase in the UK too. But more and more diseases are being added to this growing field of stem cell modification and transplantation all the time. So fingers crossed myeloproliferative diseases are next!

Have you been diagnosed with myelofibrosis?