Clinical Trials


Complete, Compassionate Care

Our team is dedicated to your pet’s health!

Loyal Canine Aging Trial

Feline Arthritis Trial

Our Fort Collins location is participating in a clinical trial for a new treatment for cats that have osteoarthritis and are over 6 months old. The treatment is only administered one time, and the study will last 3 months after the treatment is given (5 visits are required). All costs related to veterinary exams, x-rays, bloodwork, and treatment will be offered at no cost. If you follow the study procedures, you will also receive a clinic credit after trial completion to use for future services. If you are interested or have any questions, please give us a call at 970-482-1987. This is a great way to contribute to a new pain therapy for arthritic cats and advancing veterinary medicine without compromising much of your time!

Canine Demodex Mite Trial

We Are Running a Clinical Study to Investigate a Potential New Treatment for Demodex Mites in Dogs!

We are looking for dogs to enroll in our clinical study investigating a potential demodex mite treatment! Enrollment began in March.

The study has 4-6 mandatory clinic visits. To be eligible for enrollment the dog must be experiencing symptoms of demodex mites and have evidence of infestation, as well as additional study requirements. Symptoms include greasy fur, hair loss, itching, dry skin, and rash. All costs related to the study will be offered at no cost to you, including exams, and the assigned study treatment. You may also be eligible for compensation and full coverage protection against heartworms, fleas, and ticks!

To get in touch or refer a case, give us a call at 970-482-1987.

Visit this information page to learn more about eligibility requirements:

This is a great way to contribute to a new treatment and advancing veterinary medicine without compromising much of your time!

Trust, Convenience, and Value

At Raintree Animal Hospital, we respect your bond with your pet, and we are dedicated to meeting your needs and concerns while providing the highest quality care for your pet—from birth through their senior years.


Fort Collins
Phone: (970) 482-1987

Fax: (970) 482-6775

Phone: (970) 486-1807
(970) 225-5482


 7:30 am to 6:00 pm
Sat: 7:30 am to 12:00 pm
Sun: Closed

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Mon-Fri: 7:30am - 6pm
Sat: 8am-6pm
Sun: 10am-6pm

Daycare Pick-up & Drop Off 
Mon-Fri: 7:30am - 5:30pm
Sat - Sun: 10am - 4pm


Fort Collins
2335 S Shields St.
Fort Collins, CO 80526
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5620 E. Harmony Rd.
Timnath, CO 80547
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