All diseases for which granulocyte-monocyte/macrophage adsorption apheresis device (GMA) is indicated belong to the group of Autoimmune Diseases (AD). An AD is a pathological condition in which the immune system becomes the aggressor, attacking and destroying healthy organs.

There are more than 80 AD of which Rheumatoid Arthritis, Psoriasis, Systemic Lupus Erythematosus and Inflammatory Bowel Disease are particularly prevalent.