Clinical Studies

Clopidogrel (Plavix®) use in cats

"Validation of an assay to measure blood concentrations of the clopidogrel active metabolite in cats clinically receiving clopidogrel."


Plavix use in catsPurpose of Study

The purpose of this study is to evaluate the properties of clopidogrel (Plavix®) in felines. Cats with heart disease can be prone to forming clots in their hearts. These clots can leave the heart, travel to any part of the body and block blood flow. This is a very painful condition and, depending on the location of the clot, can come with a very poor prognosis. In humans, clopidogrel is used to decrease blood clot formation but not much is known about its properties in cats. Obtaining more information about this drug will help veterinarians provide better treatment for cats who are prone to life-threatening blood clots.


Enrolled cats will receive a free physical examination from a board certified veterinary cardiologist. The study will cover the costs of blood work and associated analysis.

Enrollment Requirements

Cats who qualify for this study must be currently receiving or scheduled to start clopidogrel. They will spend about three hours at the WSU-VTH for a physical examination and either one or two blood draws.

Treatment Methods

Once enrolled, the cat will receive a physical exam. After the physical exam, 6.0 ml of blood (a little over 1 teaspoon) will be drawn. If the cat is enrolled for two blood draws, the cardiologist will wait for 2 hours before drawing another 6.0 ml of blood.

Owner Responsibilities

Owners are responsible for bringing their cat to the WSU-VTH on the arranged day of the exam and blood draw.

Contact Information

For more information please contact:
Valorie Wiss, Clinical Studies Coordinator
Office: 509-335-0798
Cell: 509-432-5345