Gut check: could sauerkraut and fiber help fight cancer?

NCT ID NCT06475807

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This pilot study explores whether eating high-fermented foods (like yogurt and kimchi) followed by high-fiber supplements can change the gut microbiome and improve immune response in people with melanoma or lung cancer who are receiving standard immunotherapy. Researchers will track changes in gut bacteria and immune cells in 70 participants over several weeks. The goal is to gather early data on whether diet can support cancer treatment.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

high-fermented foods and high-fiber supplements

What this could lead to

If successful, this could point toward simple dietary changes that help cancer patients respond better to immunotherapy.

What could go wrong

This is a small, early pilot study with only 70 participants, so results may not apply broadly. Dietary changes may have no significant effect on immunity or treatment outcomes.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

cancer melanoma neoplasm non-small cell lung carcinoma small cell lung carcinoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • UPMC Hillman Cancer Center

    RECRUITING

    Pittsburgh, Pennsylvania, 15232, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••