Stage IV HER2-Positive Non-Small Cell Lung Cancer: Lauren's Patient Story
This lung cancer diagnosis at a glance
- Stage at diagnosis
- Stage IV
- Subtype
- Non-Small Cell Lung Cancer
- Biomarkers
- HER2 mutation
- Sex
- Female
- Spread to
- Bones/ribs/shoulder; liver
- Treatment
- chemotherapy, targeted therapy, biomarker testing and clinical trial discussion
- Outcome
- Responding Well
Treatment course, step by step
- Emergency-room visits first led to pneumonia treatment
- Later testing found Stage IV lung cancer with spread to bones, ribs, shoulder, and liver
- Liver biopsy confirmed lung cancer, and liquid biomarker testing found a HER2 mutation
- Initial treatment was traditional chemotherapy because no immediate HER2-targeted option was offered
- Clinical trials were discussed
- HER2-targeted infusion treatment started in March 2025 every 3 weeks; drug name was not stated.
What happened, in summary
Lauren was 31, raising a young son, when fatigue, back pain, chest/rib pain, and widespread joint pain became impossible to ignore. Early emergency-room visits did not find the cancer; she was treated for pneumonia and then evaluated for other possible causes. When the pain worsened, imaging finally showed that cancer had metastasized to her bones, including ribs and shoulder area, and to her liver. A liver biopsy confirmed Stage IV non-small cell lung cancer in November 2024. Biomarker testing became an important part of her care. A liquid test found a HER2 mutation, but Lauren learned that HER2-mutated lung cancer had fewer standard targeted options than some other mutations. Her first treatment was traditional chemotherapy, and clinical trials were discussed as possible future options. Lauren later started targeted therapy in March 2025. The treatment was described as an infusion every 3 weeks, but the drug name was not shared. The first week after each infusion brought fatigue, nausea, and body aches, especially around known lesion sites. The other 2 weeks usually felt much better. As of September 2025, about 4 months into targeted therapy, Lauren said her bone pain had gone away, liver pain and liver enzymes had improved, and her quality of life was much closer to her old self.
Where this story comes from
This is a lay summary of an account first published by The Patient Story. Read the original in full
These are lay summaries of published cancer stories, for information only. No two cancers behave the same way, and nothing here predicts your own diagnosis or replaces advice from your oncology team.