Preclinical Studies
Laboratory and animal research conducted before a drug or device is tested in humans, evaluating safety, toxicity, and biological activity. Preclinical studies provide the data needed to support a regulatory application for first-in-human clinical trials.
What are preclinical studies?
Preclinical studies are the laboratory and animal research conducted on a candidate drug or device before it is ever given to humans. Their purpose is to assess basic safety, toxicity, and biological activity, establishing whether a product is promising and safe enough to advance.
These studies generate the evidence that regulators expect to see before authorizing the first human trials, typically through an application such as an Investigational New Drug submission. They help define starting doses, identify potential hazards, and clarify how the product behaves in a living system.
Why do preclinical studies matter?
Preclinical work is a critical safety filter that aims to catch serious problems before any patient is exposed. By characterizing risk early, it protects trial participants and prevents unsafe products from progressing.
These studies also shape the economics and timeline of development, since weak or alarming preclinical results can halt a program before costly human trials begin. Strong preclinical data, by contrast, builds the scientific case needed to attract investment and regulatory clearance.
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