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In Vivo

Meaning

In vivo is a Latin phrase meaning “in the living,” which, in a scientific and clinical context, refers to any experiment, observation, or procedure carried out within a whole, living organism, such as a human patient or an animal model. These studies are essential for understanding the systemic effects of hormonal interventions, assessing drug pharmacokinetics, and evaluating the overall safety and efficacy of a therapy in a complex biological environment. In vivo data provides the necessary translational link to clinical practice.