Phase I Study of 131-I mIBG Followed by Nivolumab & Dinutuximab Beta Antibodies in Children With Relapsed/Refractory Neuroblastoma

Nivolumab is a soluble protein consisting of 4 polypeptide chains, which include 2 identical heavy chains consisting of 440 amino acids and 2 identical light chains. Molecular weight is 146,221 daltons.

APN311 (ch14.18/CHO) is manufactured in a Good Manufacturing Practice (GMP) compliant facility of Polymun Scientific, Austria according to a state of the art aseptic manufacturing process based on a characterized and stable Chinese Hamster Ovary (CHO) cell line. After propagation of the working cell bank (WCB) in small volume vessels/bioreactors, manufacture is carried out in a 2500 L stirred tank reactor utilizing components which are free of material of animal or human origin.