• Welcome to Phoenix Rising!

    Created in 2008, Phoenix Rising is the largest and oldest forum dedicated to furthering the understanding of and finding treatments for complex chronic illnesses such as chronic fatigue syndrome (ME/CFS), fibromyalgia (FM), long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.

    To become a member, simply click the Register button at the top right.

New warning on Rituximab


ME/CFS since 1995; activity level 6?
Cornwall, UK
Just seen on Physician's First Watch:

FDA Adds Boxed Warning to Two Cancer Drugs
By the Editors

The labels of the immune-suppressing, anti-cancer drugs ofatumumab (Arzerra) and rituximab (Rituxan) will be updated with a boxed warning noting an increased risk for reactivation of hepatitis B virus infection. Rituximab is used to treat non-Hodgkin lymphoma, and both drugs are used for chronic lymphocytic leukemia.

In its MedWatch safety alert, the FDA offers guidance for clinicians to help decrease the risk for HBV reactivation with these agents.

FDA MedWatch safety alert (Free) http://click.jwatch.org/cts/click?q=227%3B67896262%3BzeBeGPRQRwWxrV7BojPq0%2FwzDWmDRFf98ZoSAu1SKQQ%3D
Background: NEJM Journal Watch summary on HBV reactivation after rituximab (Your NEJM Journal Watch registration required) http://click.jwatch.org/cts/click?q=227;67896262;zeBeGPRQRwWxrV7BojPq09FCdigMlZPW8ZoSAu1SKQQ=