Ex Vivo

Ex Vivo describes biological processes, experiments, or therapeutic manipulations occurring outside the living organism in controlled environments, typically involving tissues, organs, or cells removed from donors or patients, manipulated under laboratory conditions, and potentially returned to the body. This approach bridges in vitro systems and in vivo studies, maintaining tissue architecture and physiological relevance while enabling experimental control impossible in living subjects.

The biopharmaceutical industry increasingly leverages ex vivo approaches across development and therapeutic applications. Ex vivo drug testing employs patient tumour samples or tissue explants evaluating therapeutic responses in systems preserving tumour microenvironment complexity. Cell and gene therapy manufacturing represents a prominent ex vivo therapeutic application, collecting patient cells through leukapheresis, genetically modifying or expanding cells under controlled conditions, and reinfusing engineered products. Organ preservation employs ex vivo perfusion maintaining donor organ viability during transport. As personalised medicine advances and cell therapies proliferate, ex vivo approaches continue expanding supporting therapeutic innovation and personalised treatment strategies.