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Current Studies and Clinical Trials

The following are research studies and clinical trials on FIP currently seeking participants.  Some provide treatment, others seek cats already being treated, or focus on aspects of FIP diagnosis.

University of California-Davis

Oral antiviral therapy for cats with feline infectious peritonitis (FIP)

Your cat must be diagnosed with the wet form of FIP to take part in this study. This includes a biopsy confirmed diagnosis or a constellation of positive PCR and consistent blood work and clinical signs. The costs of these tests are not covered by the clinical trial.


Pets and their owners must reside within close proximity of Davis, CA.

Contact: Veterinary Center for Clinical Trials   (530) 771-6747

More info

University of Wisconsin-Madison

Studying FIP in cats and their unaffected housemates

Study participants have up to $400 of their UWVC bill reimbursed to reach the diagnosis of FIP.

Contact Info: Dr. Erin Lashnits or Amy Elbe, CVT, LAT at 608-890-3484.

More info

University of California-Davis

Combined stem cell and antiviral treatment in cats with feline infectious peritonitis (FIP)

This study is enrolling kittens between 3 and 12 months old who have laboratory evidence of inflammation as seen on general blood work, multi-system organ involvement and the presence of cavity effusion (fluid in the abdomen) that tests positive for FIPV. Cats cannot be included if their central nervous system is affected, have eye disease or co-infection with feline immunodeficiency virus and/or feline leukemia virus.


Pets and their owners must reside within close proximity of Davis, CA.

Contact: Veterinary Center for Clinical Trials   (530) 771-6747

More info

Ohio State University

FIP Treatment with GS-441524 Prospective Study

This prospective survey study is being conducted by OSU researchers looking to capture GS-like therapy treatment outcomes in cats diagnosed with FIP.

This study seeks cat owners who are starting GS- therapy for the first time to treat their cats with FIP. Eligible participants should be currently in week 1-2 of treatment, or planning to start treatment within the next few days.  Treatment must be sourced and provided by the owner.  


Enrollment for this study has closed.

University of Florida

Cats with FIV+/FeLV+ Treated for FIP Study

This study is conducting a survey for cats that have been diagnosed with FeLV and/or FIV and treated with anti-FIP medication. Examples of this kind of medication include names like GS-441524 (any brand), GC, Remdesivir and others. We would like to hear from any cat owners, shelters, and rescues that have started this kind of treatment.

The study is for cats infected with FIP plus FeLV and/or FIV and started on anti-viral treatment. The treatment does not have to be fully completed or successful – all experiences are valuable to report.


The first step in our process is to complete a 5-minute screening form to determine if your cat meets the following requirements for enrollment in the detailed survey. Complete one screening form at for each cat. 


Enrollment Criteria:

1. Infected with FIP

2. Co-infected with FeLV and/or FIV

3. Treated with one of the new anti-FIP medications


If your cat meets the study enrollment criteria, you will receive more information about how to opt in to participate in a detailed survey about your cat’s FIP treatment journey. The full treatment survey would take 15-25 minutes to complete.

If you have any questions about this survey or would like more information, please contact Dr. Julie Levy at Note that we cannot provide treatment or diagnostic information for individual cats we have not examined.

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