I have a 62 year-old patient with Churg-Strauss syndrome who was diagnosed with metastatic breast cancer 1 month ago. She has been on Xolair for 3 years and it has really helped her asthma control. Would continuing Xolair treatment be contraindicated?


Thank you for your inquiry.

According to the latest information of which I am aware, there is no significant link between the administration of omalizumab and breast cancer. I personally would not discontinue omalizumab in your patient.

Thank you again for your inquiry.

Phil Lieberman, M.D.

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