Question on Allergic Asthma Treatment

Dear colleagues,

I have been treating a 28-year-old patient, male, with severe allergic asthma for a while. The patient has many food allergies, plus allergic reaction to dust mites, mold and almost all types of pollen. It is almost impossible for him to avoid allergens. Even with long-acting beta-adrenoceptor agonist (LABA) or glucocorticoid therapy, severe asthma attacks are common, and day-to-day life is severely disrupted.

I am studying the possibility of prescribing Omalizumab, a monoclonal antibody targeted at immunoglobulin E. However, I have no experience with this treatment and am at the moment somewhat reserved. I read that this treatment poses a risk of developing malignant tumors and that the drug could cause anaphylactic adverse reactions. Treatment costs are also of concern.

Are you in favor of prescribing this medicine?

Thanks for your help.