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PNH Drugs and Treatments

More drugs and treatments are available to treat bone marrow failure disease than ever before. Researchers constantly look for ways to enhance drugs already on the market and develop new ones with fewer side effects. Some drugs treat only one type of the disease, while others may be used to treat more than one type. Check with your doctor to find out which drugs are right for you and why.

Antithymocyte Globulin

Brand name: ATG, Atgam, Thymoglobulin
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.


A biosimilar is a type of biologic medication. The term “biosimilar” means that the medication is highly similar to the already approved brand name biologic (“originator” medication). Biosimilars are not generic versions of the original biologic.

Blood Clot Treatment

Blood clots are very dangerous. If you have a blood clot, you need to get help right away. Patients with PNH are at an increased risk of getting serious blood clots. Here are some ways blood clots are treated.

Blood Transfusions

A blood transfusion is a safe and common procedure. Most people who have a bone marrow failure disease like aplastic anemia, MDS or PNH will receive at least one blood transfusion. When you receive a blood transfusion, parts of blood from a donor are put into your bloodstream. This can help some patients with low blood counts.

Bone Marrow Transplant

A bone marrow transplant (BMT) is also called a stem cell transplant (SCT) or hematopoietic stem cell transplant (HSCT).The procedure replaces unhealthy blood-forming stem cells with healthy ones and offers some patients the possibility of a cure. But for many patients, a BMT is not an option due to the risks and potential long-term side effects as an "imperfect cure".

Clinical Trials

Clinical research is at the heart of all medical advances, identifying new ways to prevent, detect or treat disease. If you have a bone marrow failure disease, you may want to consider taking part in a clinical trial, also called a research study.


Brand name: Crovalimab
An experimental complement inhibitor C5 monoclonal antibody. By blocking the cleavage of C5 to C5a and C5b, it is expected to inhibit complement activation, which is the cause of a number of diseases.


Brand name: Neoral, Sandimmune
An immunosuppressant, this drug that lowers the body's immune response.


Brand name: VOYDEYA
VOYDEYA is a prescription medicine used along with ravulizumab or eculizumab to treat breakdown of red blood cells that takes place outside of blood vessels (extravascular hemolysis), in adults with paroxysmal nocturnal hemoglobinuria (PNH). It was approved in April 2024.


Brand name: Exjade, Jadenu
An iron chelator, this drug is used to remove excess iron from the body.