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Cancer is one of the hardest things a pet parent can face.

May 1, 2025 – It’s a diagnosis that brings fear, uncertainty, and heartbreak — and it's one of the most common health concerns for dogs and cats. That’s why, from now through June 30, we’re asking for your help to donate and help fund the research that gives hope: hope for better diagnostics, better treatments, and more time with the pets we love.

Why Cancer Research Matters 
Fighting cancer is a marathon. It can take decades to develop a reliable test, uncover new treatment options, or better understand how cancers grow and spread. While science moves forward, pets and their families are waiting.

We’ve been part of this fight for more than 60 years. Our first cancer study was funded decades ago—and since then, we’ve supported 401 cancer research projects to help dogs, cats, horses, and even wildlife.

What We’ve Achieved Together
Because of your support, we’ve helped:

  • Develop immunotherapies and non-invasive testing methods
  • Advance understanding of cancer genetics in pets
  • Fund early research on trametinib, a drug now used to treat certain canine cancers
  • Uncover environmental risk factors and share new safety guidance for dog owners
  • Back the science behind the feline leukemia vaccine, which has saved millions of cats

And when no one else would take on a study of cancer in dogs at scale, we launched the Golden Retriever Lifetime Study — now the largest of its kind in the world, and still going strong.

Real Stories, Real Impact
Behind every study and supporter is a story:

  • A veterinary student whose summer research didn’t go as planned—but inspired a lifelong career in oncology
  • A dog who received an experimental therapy funded by your donations, and lived years longer than expected
  • A story of a beloved pet shared with our Stop Cancer Furever Pledge Community

We continue because of these stories. Because we talk to pet lovers every day who are navigating cancer. Because we’ve lost pets of our own. And because breakthroughs don’t happen without persistence, funding, and hope.

Double Your Impact Through June 30
Longtime supporters Petco Love and Blue Buffalo are once again matching donations, up to $100,000 through June 30. That means your gift will go twice as far in helping to stop cancer in its tracks.

We know this isn’t easy. But you’re not alone in this fight.

Together, we can Stop Cancer Furever.
 

DONATE NOW

 

black and white kitten sitting on owner's shoulder

No Pet Should Have to Suffer From Cancer

You can help Stop Cancer Furever with your donation today. Now through June 30, all gifts will be matched, up to $100,000.