What is the role of IL-2 conjugated with polyethylene glycol (PEG) in the treatment of common variable immunodeficiency (CVID)?

Updated: Oct 16, 2018
  • Author: C Lucy Park, MD; Chief Editor: Harumi Jyonouchi, MD  more...
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An experimental preparation of IL-2 conjugated with polyethylene glycol (PEG) was administered to a select group of patients with CVID because of the observation that lymphocytes from a subgroup of patients with CVID, when activated in vitro, produce markedly decreased amounts of IL-2. After several months of therapy, a significant increase was noted in in vitro Ig production by patients' B lymphocytes, in vitro IL-2 production, and serum antibodies. Long-term outcomes of this therapy remain to be seen.

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