ID	DDInter220
	Drug Type	biotech
	Protein Chemical Formula	C2367H3577N649O772S19
	Protein Average Weight	54100.000
	CAS Number	853426-35-4
	Description	Blinatumomab is a BiTE-class (bi-specific T-cell engager) constructed monoclonal antibody formed by the recombinant fusion of an anti-CD3 single-chain variable fragment (scFV) and an anti-CD19 scFV through a short peptide linker.[A254836,L44311] CD3 is an antigen expressed on the surface of T-cells, while CD19 is mostly expressed on the surface of malignant B-cells. Since blinatumomab has an affinity to both antigens, it redirects T-cells to tumor cells expressing CD19 and promotes tumor cell lysis and apoptosis.[A7659,A7660,A254831] Blinatumomab is manufactured by Amgen Inc. and marketed under the brand Blincyto. It was approved in December 2014 under the FDA’s accelerated approval program for the treatment of CD19-positive B-cell precursor acute lymphoblastic leukemia (ALL) in first or second complete remission with minimal residual disease (MRD) greater than or equal to 0.1% in adults and children. It was later approved for the treatment of CD19-positive B-cell precursor ALL in relapsed and refractory patients.[L44311] Blinatumomab has a short half-life, requiring patients to receive a continuous infusion over 4-week cycles using a portable mini-pump for optimum delivery.[A254826]
	ATC Classification	L01FX07
Sequences	>single chain variable fragment fusion protein DIQLTQSPASLAVSLGQRATISCKASQSVDYDGDSYLNWYQQIPGQPPKLLIYDASNLVS GIPPRFSGSGSGTDFTLNIHPVEKVDAATYHCQQSTEDPWTFGGGTKLEIKGGGGSGGGG SGGGGSQVQLQQSGAELVRPGSSVKISCKASGYAFSSYWMNWVKQRPGQGLEWIGQIWPG DGDTNYNGKFKGKATLTADESSSTAYMQLSSLASEDSAVYFCARRETTTVGRYYYAMDYW GQGTTVTVSSGGGGSDIKLQQSGAELARPGASVKMSCKTSGYTFTRYTMHWVKQRPGQGL EWIGYINPSRGYTNYNQKFKDKATLTTDKSSSTAYMQLSSLTSEDSAVYYCARYYDDHYC LDYWGQGTTLTVSSVEGGSGGSGGSGGSGGVDDIQLTQSPAIMSASPGEKVTMTCRASSS VSYMNWYQQKSGTSPKRWIYDTSKVASGVPYRFSGSGSGTSYSLTISSMEAEDAATYYCQ QWSSNPLTFGAGTKLELKHHHHHH
Useful Links	DrugBank PubChem Substance KEGG Drug Wikipedia ChEMBL