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the claim

Radiation therapy kills cancer cells and improves survival in patients with localized cancers.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
8 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that radiation therapy kills cancer cells and improves survival in patients with localized cancers?

Yes. Reference and peer-reviewed sources state that radiation therapy kills or controls malignant cells and is curative for cancers localized to one area, with one review noting it mostly confers a survival benefit and is used in about half of patients with localized malignant tumors.

Verdict: SUPPORTED · 8 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 8
Radiation therapy
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Radiation therapy. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Radiation_therapy

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More for · 7
Radiation
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Radiation. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Radiation

Survival Outcomes with Photodynamic Therapy, Chemotherapy and Radiation in Patients with Stage III or Stage IV Non-Small Cell Lung Cancer
2021
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Chhatre, S., Vachani, A., Allison, R. R., & Jayadevappa, R. (2021). Survival Outcomes with Photodynamic Therapy, Chemotherapy and Radiation in Patients with Stage III or Stage IV Non-Small Cell Lung Cancer. doi.org. https://doi.org/10.3390/cancers13040803

Serum cytokine profiles and metabolic tumor burden in patients with non-small cell lung cancer undergoing palliative thoracic radiation therapy
2018
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MD, H. A. E., MSc, I. S. K., PhD, V. S., MD, A. M. L., MSc, A. R. H., & MSc, A. A. (2018). Serum cytokine profiles and metabolic tumor burden in patients with non-small cell lung cancer undergoing palliative thoracic radiation therapy. doi.org. https://doi.org/10.1016/j.adro.2017.12.007

A review of the efficacy and safety of iodine-125 seed implantation for lung cancer treatment
2024
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Li, Z., Hu, Z., Xiong, X., & Song, X. (2024). A review of the efficacy and safety of iodine-125 seed implantation for lung cancer treatment. doi.org. https://doi.org/10.1016/j.ctarc.2024.100844

The clinical value of adding immune checkpoint inhibitors to radiotherapy for cancer: a systematic review and meta-analysis.
2026
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K, L., Y, Z., & H, Z. (2026). The clinical value of adding immune checkpoint inhibitors to radiotherapy for cancer: a systematic review and meta-analysis.. doi.org. https://doi.org/10.1080/07853890.2026.2619281

Biological response of cancer cells to radiation treatment -
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Biological response of cancer cells to radiation treatment - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.3389/fmolb.2014.00024

Abstract SY37-01: Augmenting the therapeutic ratio by combining radiation therapy with inhibitors of the DNA damage response
2025
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Chalmers, A. (2025). Abstract SY37-01: Augmenting the therapeutic ratio by combining radiation therapy with inhibitors of the DNA damage response. doi.org. https://doi.org/10.1158/1538-7445.am2025-sy37-01

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