I have a patient who received the monoclonal antibody treatment last week and developed a significant allergic reaction to it. The rash resolved with treatment. I don't know what criteria would be used to determine if someone is at risk for an allergic reaction, since it's not likely that any of my patients have received this treatment in the past.

No. But the 1800 mg of Darzalex helped ward it off. (Monoclonal) monthly.