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Fecal Transplants Boost Cancer Treatment Efficacy, Studies Show

1/29/2026

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Summary

Story summary

Nature Medicine studies by Lawson Research Institute and Centre de recherche du Centre hospitalier de l'Université de Montréal show fecal microbiota transplants (FMT) can enhance cancer treatment.
The first study shows FMT reduces toxic side effects of kidney cancer drugs.
The second study shows FMT improves immunotherapy responses in lung cancer and melanoma.
In trials, 80% of lung and 75% of melanoma patients responded after FMT, higher than immunotherapy alone.

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Story summary

Nature Medicine studies by Lawson Research Institute and Centre de recherche du Centre hospitalier de l'Université de Montréal show fecal microbiota transplants (FMT) can enhance cancer treatment.
The first study shows FMT reduces toxic side effects of kidney cancer drugs.
The second study shows FMT improves immunotherapy responses in lung cancer and melanoma.
In trials, 80% of lung and 75% of melanoma patients responded after FMT, higher than immunotherapy alone.