How probiotics affect survival, treatment response, and gut microbiota during cancer therapy

The Effect of Survival, Response and Microbiota Change in Different Therapy Under Probiotic Supplement (Clostridium Butyricum) in Patient With Malignant Tumor

Not applicable Interventional Chang Gung Memorial Hospital · NCT06998823

This test will see if taking a probiotic supplement during cancer treatment helps adults with cancer live longer, respond better to therapy, or have healthier gut bacteria.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment120 (estimated)
Ages20 Years and up
SexAll
SponsorChang Gung Memorial Hospital Academic / other
Drugs / interventionschemotherapy, immunotherapy
Locations1 site (New Taipei City)
Trial IDNCT06998823 on ClinicalTrials.gov

What this trial studies

This interventional study gives an oral probiotic supplement to adults with confirmed cancer who are receiving cancer therapy and follows them over time. Researchers will track clinical outcomes such as survival and treatment response while measuring changes in the gut microbiota. Stool and clinical data will be collected at scheduled visits to compare microbiome composition and clinical outcomes before and after probiotic use. Participants younger than 20 and pregnant or breastfeeding people are excluded from participation.

Who should consider this trial

Good fit: Adults aged 20 or older with a confirmed cancer diagnosis who are undergoing cancer therapy and can give informed consent are ideal candidates.

Not a fit: People under age 20, and pregnant or breastfeeding individuals are excluded and would not qualify to receive potential benefit from this protocol.

Why it matters

Potential benefit: If successful, the probiotic could improve treatment response, support gut microbial balance, and potentially improve survival or reduce therapy-related complications.

How similar studies have performed: Prior small clinical and preclinical studies suggest probiotics can modify the gut microbiome and influence treatment responses, but strong evidence for improved survival in cancer patients is limited.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. age≧20
2. participants with cancer therapy and agree to sign informed consent
3. Cancer confirmed by clinical or pathological diagnosis

Exclusion Criteria:

1. age\<20
2. Pregnant or breastfeeding women

Where this trial is running

New Taipei City

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions ProbioticsCancer, Therapy-RelatedImmunotherapyTargeted TherapyChemotherapy
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.