Cyclosporine
Cyclosporine:
Cyclosporine is used along with antithymocyte globulin (ATG), another immunosuppressant, for treating aplastic anemia and some other forms of bone marrow failure.
is an immunosuppressive drug that works by preventing T-lymphocytes from becoming active. Once the T-lymphocytes are turned off, they stop attacking
stem cells
stem cells:
Cells in the body that develop into other cells. There are two main sources of stem cells. Embryonic stem cells come from human embryos and are used in medical research. Adult stem cells in the body repair and maintain the organ or tissue in which they are found. Blood-forming (hemapoietic) stem…
in the
bone marrow
bone marrow:
The soft, spongy tissue inside most bones. Blood cells are formed in the bone marrow.
. That means stem cells may be able to grow back. It is used along with
antithymocyte globulin
antithymocyte globulin:
ATG is an immunosuppressant, a drug that lowers the body's immune response. It is typically used with cyclosporine as the first-line immunosuppressive therapy (IS) to treat patients with acquired aplastic anemia. In some cases it is used as a treatment for patients with MDS and PNH.
(ATG) as a standard treatment for
aplastic anemia
aplastic anemia:
(ay-PLASS-tik uh-NEE_mee-uh) A rare and serious condition in which the bone marrow fails to make enough blood cells - red blood cells, white blood cells, and platelets. The term aplastic is a Greek word meaning not to form. Anemia is a condition that happens when red blood cell count is low. Most…
, and may also be used to treat MDS and PNH.
Some aplastic anemia patients may require prolonged ongoing treatment with cyclosporine to prevent or minimize the risk of disease relapse aplastic anemia coming back. Generally speaking, patients can remain on cyclosporine indefinitely, as long as there is evidence that the drug is providing some benefit and there are no unwanted or adverse side effects.
For patients who respond well to cyclosporine, alone or in combination with antithymocyte globulin (ATG), hematologists may reduce the cyclosporine dosage. Tapering, or reducing, the dosage is done slowly over a long period of time. If low blood counts and disease symptoms return, your doctor may increase or restart cyclosporine. For those who experience bad side effects such as kidney toxicity, the drug must be discontinued.