Rituxan (Rituximab) - Life-Threatening Brain InfectionDec 18, 2006 | www.fda.gov
FDA and Genentech informed healthcare professionals of important emerging safety information about Rituxan. Two patients died after being treated with Rituxan for systemic lupus erythematosus (SLE). Rituxan is approved for the above indication and is prescribed off-label for other serious diseases and conditions such as SLE. The cause of death was a viral infection of the brain called progressive multifocal leukoencephalopathy (PML) that is caused by reactivated JC virus which is present in about 80 percent of adults. Physicians should maintain a high index of suspicion for the development of PML in patients under treatment with Rituxan.