Additional Coverage:
- A 49-year-old triathlete suddenly lost vision in one eye. He was diagnosed with stage 4 lung cancer, despite never smoking. (businessinsider.com)
At 49, Dave Nitsche was the embodiment of good health. A project manager for a Toyota subsidiary in Calgary, Alberta, he spent his free time competing in ultra-running and triathlons, including Ironman events, and hiking. His active lifestyle was nothing unusual-until late 2019, when a sudden loss of vision in one eye marked the beginning of a life-altering journey.
Initially, Dave noticed blurry vision and distortion of straight objects, like telephone poles appearing wavy. By the time he saw his optometrist, he had completely lost sight in that eye.
What began as a suspected detached retina quickly escalated when hospital tests revealed significant fluid buildup and pressure behind his eye. Ultimately, his eye was removed and replaced with a prosthetic.
The diagnosis that followed was devastating: stage 4 lung cancer that had metastasized to his eye, bones, liver, kidneys, and brain. Despite never having smoked and no family history of lung cancer, Dave was told his maximum life expectancy was one to two years.
Traditional treatments like chemotherapy and radiation offered little hope due to the extensive spread of the cancer. Instead, Dave turned to targeted therapies tailored to his specific lung cancer mutation, an EGFR mutation. Over the past seven years, he has been treated with several advanced medications including Gilotrif, Tagrisso, and currently Rybrevant, all covered by Canada’s national health insurance system.
Remarkably, Dave’s tumors have significantly shrunk, and he has managed manageable side effects such as skin and nail issues. His commitment to physical activity has been unwavering; he bikes to his appointments and continues training for long-distance cycling events. According to his oncologist, his high VO2 max-a measure of the body’s ability to use oxygen during exercise-may have contributed to his resilience and ability to withstand treatment.
Dave’s story highlights the challenges of diagnosing non-small cell lung cancer (NSCLC), the most common form of lung cancer, which often presents with mild symptoms and is detected only at advanced stages. Like Dave, former YouTube CEO Susan Wojcicki, who passed away in 2024 at age 56, was an active non-smoker diagnosed with late-stage NSCLC.
While smoking remains the leading risk factor for lung cancer, exposure to radon, asbestos, air pollution, and other factors also play a role. Screening guidelines currently focus on heavy smokers, leaving many non-smokers undiagnosed until the disease is advanced.
Through perseverance and determination, Dave Nitsche continues to defy the odds. He lives day to day, measuring his life in three-month intervals between scans, yet remains focused on proving prognoses wrong. As he trains for his second BC Epic 1000, a nearly 700-mile cycling race across British Columbia, his journey stands as a testament to hope and resilience in the face of a daunting diagnosis.