Status:

NOT_YET_RECRUITING

Study to Investigate Efficacy of a Novel Probiotic on the Bacteriome and Mycobiome of Breast Cancer

Lead Sponsor:

Case Comprehensive Cancer Center

Conditions:

Breast Cancer

Eligibility:

FEMALE

18-65 years

Phase:

NA

Brief Summary

The purpose of this study is to examine the effect of probiotics on the breast tumor microbiome and gut microbiome in breast cancer. Microorganisms that make up the microbiome (such as viruses, bacter...

Detailed Description

This study will investigate the efficacy of the investigational product (a novel probiotic) on altering the microbiome (bacteriomeand mycobiome) and polymicrobial biofilms in the gut of 50 women with ...

Eligibility Criteria

Inclusion

  • Diagnosis of breast cancer (invasive ductal carcinoma \[IDC\] or Invasive Lobular Carcinoma \[ILC\])
  • Minimum breast tumor size of 1.0 cm
  • Participants who are of childbearing potential must agree to use a medically approved method of birth control and have a negative pregnancy test result
  • BMI between 18.5 to 29.9 kg/m2
  • Agree to abstain from consuming unpasteurized bacteria-fermented foods one week prior to baseline visit and throughout the study.
  • Agree to not change current dietary habits (apart from avoiding probiotics) and activity/training levels one week prior to screening and during the study.
  • Agree to complete all research activities defined in the study
  • Participants must have the ability to understand and the willingness to sign a written informed consent document.

Exclusion

  • Women who are pregnant, breast feeding, or planning to become pregnant during the trial.
  • Use of antibiotics within 5 weeks of randomization.
  • History of chronic inflammation or structural abnormality of the digestive tract (e.g., inflammatory bowel disease, duodenal or gastric ulcer intestinal obstruction, or symptomatic cholelithiasis).
  • Use of probiotic and/or prebiotic supplements and/or supplemented foods prior to screening and throughout the study.
  • Individuals receiving any other investigational agents within 30 days prior to randomization.
  • Change in anti-psychotic medication within 3 months prior to randomization.
  • Alcohol or drug abuse in the past year.
  • Participants with a known allergy to the test material's active or inactive ingredients..
  • Clinically significant abnormal laboratory results that may negatively impact the participant being involved on the study, at the discretion of the physician.
  • Any condition which in the investigators' opinions may adversely affect the participant's ability to complete the study or its measures or which may pose significant risk to the participant.
  • Physician feels participation in this trial is not in the subject's best interest.

Key Trial Info

Start Date :

February 1 2026

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 1 2026

Estimated Enrollment :

100 Patients enrolled

Trial Details

Trial ID

NCT04362826

Start Date

February 1 2026

End Date

December 1 2026

Last Update

December 24 2025

Active Locations (1)

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Cleveland Clinic Taussig Cancer institute, Case Comprehensive Cancer Center

Cleveland, Ohio, United States, 44122