The Difference Between in Vivo and In Vitro Experiments

In vitro and in vivo are two types of methods used in laboratory experiments. In vivo experiments are performed using a whole, living organism. There are two forms of in vivo experiments: animal studies and clinical trials during drug development. The objective of in vivo experiments is to gain knowledge about biological systems or discover new drugs. In vivo experiments are time consuming, very precise, expensive and subject to several restrictions because they deal with living organisms.

In vitro experiments or observations are done on tissue outside of the living organism in a controlled environment and usually in a test tube. They are performed using the extracted cellular components from their regular biological environments. These experiments are less expensive, less time consuming and less precise.

International Research Services, Inc. (IRSI), with our partner BIO alternatives, is the only US company that offers clinical trials with both in vivo and in vitro efficacy programs. We provide a valuable depth of experience to our clients and are dedicated to the health and safety of every patient enrolled in our studies as well as the integrity of our results. We are committed to strict compliance with regulatory and ethical standards, protocol adherence and accurate reporting. Quality checks are consistently performed throughout the study process and 100% of the statistical data is verified against associated data records.

For additional information about our clinical trial facility, or to arrange a visit, email sschwartz@irsi.org or ffriscia@irsi.org. You can also call 914-937-9483 or 800-548-0158.