More than 60% of colorectal cancer patients begin treatment before biomarker test results come back. Waiting for those results isn’t hesitation, it’s the foundation of precision care.
The clinical case for waiting
The impulse to act immediately after a diagnosis is natural and understandable. But starting treatment before biomarker results return can mean missing the most effective therapy, or losing eligibility for a clinical trial entirely.
“Without Jodi’s research the night before my second infusion, I would have been dead. Not a doubt in my mind.”
— Troy, BRAF V600E + DPD deficiency patient
Biomarker results return in 1-3 weeks. That window is not delay. It’s the foundation of your personalized care.
THE TESTING GAP IN PRACTICE
Sources: JAMA Network Open, 2024 and The Oncologist 2023
Find where you need to start
Understand what biomarker testing means for your care path and why those 1-3 weeks matter before any treatment begins.
Read first-hand accounts of how biomarker results changed treatment decisions or share your own experience to help others.
Peer-reviewed studies and oncology guidelines on biomarker testing in colorectal cancer, curated by GCCA from leading organizations.
News, biomarker education, patient perspectives, and advocacy insights from the Global Colon Cancer Association
Real People. Real Impact.
Jodi’s research the night before Troy’s second infusion uncovered a DPD deficiency that would have caused a fatal toxic reaction. BRAF V600E also reshaped his entire treatment plan. Now NED.
Read StoryDan, a US Navy veteran, waited for genetic testing before any procedure. His aFAP diagnosis led to preventive surgery. 13+ years later, he's cancer-free and a fierce advocate for testing first.
Read StoryYour experience could help a newly diagnosed patient understand why waiting for results is worth it.
