Scientists Are Getting Closer to a Blood Test for Lung Cancer
Researchers are making progress toward a blood test for lung cancer that could identify at-risk individuals beyond current screening guidelines. A study found that tracking 13 proteins in the blood could detect 85% of lung cancers in smokers, significantly higher than the 63% detection rate of existing methods. While the test is not yet ready for commercial use, it shows promise for expanding screening to include nonsmokers and those currently ineligible for lung cancer screening.
- ▪Current lung cancer screening primarily targets smokers, leaving many at risk untested.
- ▪A new study indicates that a blood test could significantly improve detection rates for lung cancer.
- ▪The researchers aim to develop the blood test further to include nonsmokers in future screenings.
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| Original publisher | TIME — Top |
| Canonical URL | https://time.com/article/2026/05/18/lung-cancer-blood-test/ |
| Publication time | Mon, 18 May 2026 16:30:30 +0000 |
| Retrieval time | 2026-05-18T16:39:56.633Z |
| Last seen | 2026-05-18T16:39:56.633Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | gbuJPu9HQv8v |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
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Opening excerpt (first ~120 words) tap to expand
Screening for breast, colon, and prostate cancers has led to a reduction in deaths from those diseases over the years. But lung cancer screening has not been as successful. That's because current screening recommendations focus on a single risk factor—a person's history of smoking—and it's becoming clear that there are other factors, from genetic changes to environmental exposures, that can also affect risk. That means screening guidelines leave out a lot of vulnerable people: as many as 65% of people who get lung cancer are not eligible for screening, and 10-20% of people who get lung cancer have never smoked.Scientists have been exploring better ways to identify people who might be at risk of developing lung cancer.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at TIME — Top.
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