The FDA has approved the interleukin-2 (IL-2) receptor-directed fusion protein denileukin diftitox (Lymphir – Citius) for treatment of relapsed or refractory stage I-III cutaneous T-cell lymphoma in adults who received at least one prior systemic therapy. Lymphir is a reformulated, purified version of Ontak, which was voluntarily withdrawn from the market in 2014 because of manufacturing issues.
A Fri, study studied this question.