DDInter1642 DDInter1819
Sargramostim is a human recombinant granulocyte macrophage colony-stimulating factor (GM-CSF) expressed in yeast. It is a glycoprotein that is 127 residues. Substitution of Leu23 leads to a difference from native protein.
Tisagenlecleucel is a CD19-directed genetically modified autologous T cell immunotherapy, or a CAR-T cell therapy for B-cell acute lymphoblastic leukemia. It was granted approval by FDA in August 2017 under the market name Kymriah. Tisagenlecleucel is an immunocellular therapy that involves autologous T cells that are collected from each individual patient and genetically engineered to express a specific protein called a chimeric antigen receptor (CAR) that specifically target CD19 antigens. Modified T cells are infused back into the patient's body. These CD19-directed chimeric antigen receptors (CD19 CAR-T cells) direct the T cells to target and kill leukemia cells that express CD19 on the cell surface. In a multicenter clinical trial involving pediatric and young adult patients with relapsed or refractory B-cell precursor ALL, the overall remission rate within three months of treatment was 83 percent.