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Cancer is one of the deadly diseases which is characterized by unchecked cell division or abnormal cell growth due to the incapability of cell cycle arrest. As the treatment for this is to kill the cancerous cells, the main challenge for scientists is to direct the cell killing to cancerous cells while leaving the normal cells unharmed. Antibody-Drug Conjugates (ADC) are one such targeted anti-cancer therapy. It is an effective drug delivery system that utilizes the targeting action of antibody along with cell death by potent cytotoxic agent, linked up with one another by a linker molecule and thus helps to reduce toxicity to non-target cells, ensure broad therapeutic window and overcome multi-drug resistance. Multiple parameters like total antibody (conjugated and unconjugated antibody), conjugated antibody, conjugated drug, unconjugated antibody and unconjugated (free) drug are needed to be analyzed to find out the …