All posts filed under: Good to know

The RA medical world is foreign, confusing and sometimes scary. Understanding it bit by bit will help you maneuver and feel confident that you are making the right decisions.

What does ACR20 mean

    Have you ever thought about what the numbers mean when they say 50% ACR20 at 6 months? This simply says 50% of the group had a 20% response at 6 months. It means half improved by 20%.   The ACR improvement criteria includes ACR20, ACR50 and ACR70. Meaning, 20%, 50% and 70% improvement. Easily enough to understand. I was reviewing a research paper on Orencia. I will be having my 8th infusion on Thursday. I was wondering if it was being effective enough and if I should keep taking it. The article had a chart for clinical responses in controlled trials. I reviewed the column that said inadequate response to methotrexate (The reason for being on Orencia; I think my methotrexate response is 50%, but it is not enough for me.) A response of ACR20 3  months 62% 6  months 68% 12 months 73%   This means that at 3 months 62% of the patients had a 20% improvement This means that at 6 months 68% of the patients had a 20% improvement. …