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About TheraTest

TheraTest was founded in 1988 by a group of eminent clinical rheumatologists and laboratory investigators from the University of Illinois at Chicago. They realized the need to develop accurate, sensitive and reproducible methods of detecting and measuring autoantibodies in their patients. As a result, TheraTest was formed and emerged as the innovative leader in the field of autoimmune diagnostics, pioneering the use of ELISA-based technology for the detection and measurement of a wide variety of autoantibodies.


TheraTest developed the first commercially available panel formatted test kits; for the first time these panels gave clinicians a clear and true picture of the serological status of their patients. Today, this innovative approach to autoantibody testing has gained wide acceptance, allowing clinicians to effectively track the changes in autoantibody profiles, for improved disease management.


From its state-of-the-art 25,000 square-foot facility located in Lombard, Illinois (a suburb of Chicago) TheraTest produces and markets a full line of ELISA-based test kits used in physicians’ office laboratories, hospital laboratories, reference laboratories and research settings worldwide. All TheraTest kits are provided in a convenient and cost effective 96-well format and are FDA-cleared for in-vitro diagnostic use.

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