Subcutaneous interleukin-4 (IL-4) for relapsed and resistant non-Hodgkin lymphoma: a phase II trial in the North Central Cancer Treatment Group, NCCTG 91-78-51.

Interleukin-4 (IL-4), a pleiotropic cytokine, has in vitro activity against non-Hodgkin lymphoma (NHL). This phase II study was conducted to learn the efficacy and toxicity of IL-4 in patients with NHL. Patients with relapsed or refractory indolent or aggressive NHL were eligible to receive 2.