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Detecting Stage 1 Cancer in Dogs

Feb 21
2 min read

Updated: Aug 17

Most dog cancers are diagnosed after symptoms appear—often at Stage 2 or later. But what if we could detect cancer at Stage 1, when treatments can be more effective?


In this Canine Cancer Alliance webinar, we explore new advances in early cancer detection for dogs.


Dr. Stephen Johnston, an inventor and the founder of Calviri, reviews the challenges of early detection. He discusses how a new blood test may help detect cancer before any symptoms appear, while cures are still possible.


UPDATE: The test is expected to be available in late fall 2026 or early winter.


Watch video here.Detecting Stage 1 Cancer in Dogs - Before Symptoms Appear

Episode Highlights:


The Importance of Early Detection

[00:00:00] Why stage 1 detection matters in dogs: tumors grow five times faster in dogs, creating a much narrower window to catch and potentially cure cancer.


Current Diagnosis Statistics

[00:03:10] Only about 4% of canine cancer diagnoses happen during wellness exams. In contrast, around 88% occur after owners notice symptoms. This means cancers are usually found at stage 2 or later.


Breakthroughs in Blood Testing

[00:19:10] The new blood test can detect early-stage “big five” cancers. These represent about 70–80% of major canine cancers: soft tissue sarcoma, osteosarcoma, mast cell tumor, lymphoma, and hemangiosarcoma. Each has distinct molecular signatures.


Key Quotes:

“Only 4% of dog diagnoses are made during wellness exams for cancer. 88% of those diagnoses occur when owners notice something in their dog’s behavior. Almost always, these diagnoses will be at stage two or later.”


“We spent four years collecting samples from dogs diagnosed with stage one tumors. We’re the only ones in the world with a large collection of serum samples from these tumors.”




Exploring Canine Cancer Research


Understanding Canine Cancer

Canine cancer is a serious concern for many dog owners. It can affect any breed, age, or size of dog. Early detection is crucial for improving outcomes. The more we learn about these diseases, the better equipped we are to fight them.


Advances in Treatment

Research is ongoing in the field of canine cancer treatment. New therapies and approaches are being developed. These include immunotherapy, targeted therapies, and more. Each advancement brings hope for better outcomes.


The Role of Genetics

Genetics play a significant role in canine cancer. Understanding the genetic predisposition of certain breeds can help in early detection and prevention strategies. This knowledge can guide owners in monitoring their pets more closely.


Community Support and Resources

There are many resources available for dog owners dealing with cancer. Support groups, educational materials, and veterinary advice can make a difference. Connecting with others who understand the journey can provide comfort and guidance.


Check Out Other Articles and Videos


If you have questions, feel free to email us at info@ccralliance. We’ll respond as soon as we can!


Canine Cancer Alliance is a non-profit organization dedicated to supporting research for canine cancer cures.


All information on the Canine Cancer Alliance website is for educational purposes only. It is not intended to replace professional veterinary advice.


Always consult your veterinarian with any questions regarding your pet’s health and medical condition.

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©2026 Canine Cancer Alliance
 501(c)(3) Non-Profit Foundation
EIN 82-3762441
CFC # 10453

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