Does grapiprant reduce osteoarthritic pain in dogs?

Area of Science:

• Veterinary Medicine
• Pharmacology
• Canine Health

Background:

• Osteoarthritis is a common degenerative joint disease in dogs.
• Managing osteoarthritic pain is crucial for maintaining a dog's quality of life.
• Grapiprant is a non-steroidal anti-inflammatory drug (NSAID) used in veterinary medicine.

Purpose of the Study:

• To evaluate the efficacy of grapiprant in reducing osteoarthritic pain in dogs.
• To compare the effects of grapiprant versus placebo in canine osteoarthritis management.

Main Methods:

• A systematic review of two randomized controlled trials was conducted.
• Studies assessed owner-reported outcomes (pain interference, severity) and veterinarian-assessed outcomes (lameness, orthopaedic scores).

Main Results:

• One study showed significant improvements in owner-assessed outcomes and veterinarian-assessed orthopaedic scores in dogs treated with grapiprant compared to placebo.
• The second study found no significant difference in lameness scores or vertical force ratios between grapiprant and control groups in dogs with acute induced arthritis.

Conclusions:

• Grapiprant may alleviate the impact of osteoarthritis on daily activities and orthopaedic status in dogs.
• Evidence is limited and inconsistent regarding grapiprant's effectiveness, particularly for acute, severe pain and lameness.
• Further high-quality studies are required to establish the definitive efficacy of grapiprant for canine osteoarthritis.