4-Week vegan diet tested as CLL therapy

NCT ID NCT07487428

Recruiting now Disease control Sponsor: Technical University of Munich Source: ClinicalTrials.gov ↗

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

Summary

This study tests whether a 4-week whole-food plant-based diet can improve immune function and slow disease activity in people with early-stage chronic lymphocytic leukemia (CLL) who have not yet received treatment. Fifty participants will follow the diet and provide blood and stool samples before, during, and after the diet period. Researchers will measure changes in lymphocyte counts and immune cell metabolism.

What this could mean

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

Active substance: whole-food plant-based diet
What this could lead to: If it works, this could point toward a dietary approach to help manage early-stage CLL without immediate drug treatment.
What could go wrong: This is a small, early-phase study with only 50 participants and no control group. The diet is short-term, so any effects may be temporary or not clinically meaningful.

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Conditions

The condition(s) this trial relates to.

B-cell chronic lymphocytic leukemia Leukemia, B-Cell

As listed by the trial registrant

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

CLL (CHRONIC LYMPHOCYTIC LEUKEMIA)

Contacts and locations

Locations

Klinikum der Technischen Universität München (Klinikum rechts der Isar)
RECRUITING

München, Bavaria, 81676, Germany

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