# EGFR T790M mutation and lung cancer risk

> Live situation record from CLSTR: https://clstr.news/situations/egfr-t790m-mutation-and-lung-cancer-risk
> Updated: 2026-09-21T05:00:15.000Z. Sources: 20. Developments: 2.

Researchers from the Dana-Farber Cancer Institute and the 23andMe Research Institute have identified a rare inherited genetic mutation, EGFR T790M, that significantly elevates lung cancer risk. A large-scale study published in the journal Science, which analyzed genetic data from over 3.3 million participants, found that lifelong non-smokers carrying this germline mutation face a risk of developing lung cancer approximately 62 times higher than non-carriers.

The mutation increases overall lung cancer risk by about 25 times and appears to have a geographic concentration in the Southern Appalachia region of the United States. The study noted that the mutation’s impact seems largely restricted to the lungs, as no link was found between this specific mutation and 17 other common cancer types. Researchers suggest these findings may lead to changes in lung cancer screening protocols, moving toward the use of genetic testing to identify high-risk individuals for early detection.

## Claims

- The EGFR T790M mutation increases lung cancer risk by 25 times in general populations. (corroborated by 3 sources)
- Non-smokers with the T790M mutation face a 60 to 62-fold increased risk of lung cancer. (corroborated by 3 sources)
- The study analyzed genetic data from over 3.3 million people using 23andMe data. (corroborated by 3 sources)
- High consumption of saturated fats is linked to a 24% increased mortality risk in men with non-metastatic prostate cancer. (corroborated by 2 sources)
- Replacing 10% of daily calories from animal fats with plant fats reduces mortality risk in prostate cancer patients by 16%. (corroborated by 2 sources)
- Younger generations may be experiencing faster biological aging, affecting metabolism and immune systems. (single source)
- Daily lycopene intake is associated with a 1% reduction in prostate cancer risk for every 2 mg consumed. (single source)
- The EGFR T790M mutation is more prevalent in the southeastern United States, specifically Alabama, Mississippi, and Tennessee. (single source)

## Timeline

### 2026-09-21: Medical studies link genetic mutations and diet to cancer risks

New research highlights the EGFR T790M mutation as a major lung cancer risk factor, especially for non-smokers, and explores how diet and biological aging influence cancer outcomes.

8 sources. https://clstr.news/cluster/scientific-studies-link-accelerated-aging-and-genetic-mutations-to-cancer-risk

### 2026-09-17: EGFR T790M mutation significantly increases lung cancer risk in non-smokers

A study in Science reveals that the rare inherited EGFR T790M mutation increases lung cancer risk 62-fold in non-smokers, potentially transforming future genetic screening strategies.

12 sources. https://clstr.news/cluster/egfr-t790m-mutation-significantly-increases-lung-cancer-risk

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Cite as: EGFR T790M mutation and lung cancer risk. CLSTR, https://clstr.news/situations/egfr-t790m-mutation-and-lung-cancer-risk