When Insurers Require Patients to Stop Treatment

June 6, 2017

(CNN) – From 35,000 to 50,000 people in the U.S. are estimated to be dependent on medications to treat primary immunodeficiency diseases — about 300 rare conditions in which the immune system doesn’t function properly, or at all. The medication, known as immunoglobulin replacement therapy, replaces antibodies that the body doesn’t make. It can cost tens of thousands of dollars each year. In recent years, patients with these diseases have faced increasing difficulty getting their insurers to approve treatments, according to clinicians and patient advocates.

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