Citrus Plans I/ONTAK Lymphoma Drug BLA
Citrus Pharmaceuticals says that as a result of a pre-BLA meeting with FDA, it plans to submit a BLA later this year for I/ONTAK (denileukin diftitox) to treat patients with persistent or recurrent cutaneous T-cell lymphoma. The company says I/ONTAK is a purified and more bioactive formulation of ONTAK that was approved previously by FDA and marketed from 1999 to 2014. It was voluntarily withdrawn, the company says.
“Manufacturing improvements resulted in a new formulation, which maintains the same amino acid sequence but features improved purity and bioactivity,” Citrus says. FDA has granted I/ONTAK orphan drug designation for treating peripheral T-cell lymphoma and cutaneous T-cell lymphoma.