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Effects of Probiotics on the Gut Microbiome and Immune System in Operable Stage I-III Breast or Lung Cancer

NCT04857697 — Early Phase 1, Completed, 6 participants, Mayo Clinic

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Engineering Gut Microbiome to Target Cancer-Immune Microenvironment in Breast and Lung Cancer

RegistryNCT04857697
StatusCompleted
PhaseEarly Phase 1
Study typeInterventional; na, single group, masking: none, supportive care
Enrollment6 (Actual)
SponsorMayo Clinic (Other)
ConditionsAnatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Breast Adenocarcinoma, Stage I Lung Cancer AJCC v8, Stage II Lung Cancer AJCC v8, Stage III Lung Cancer AJCC v8
InterventionsBiopsy, Biospecimen Collection, Probiotic, Therapeutic Conventional Surgery (Procedure, drug)
Datesstart 2021-07-01, primary completion 2023-03-08, completion 2023-03-08, first posted 2021-04-23, last updated 2023-04-21
Locations1 site in United States

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-Summary

This clinical trial evaluates whether engineering gut microbiome using probiotics will alter the body's immune system to react to stage I-III breast or lung cancers that can be removed by surgery (operable). Having diverse species of bacteria inside the bowel may help improve the immune system, particularly the ability of the immune system to recognize cancer. Taking probiotics may change the diversity and make up of the bacteria in the bowels, and change how the immune system reacts to breast or lung cancer.

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+Detailed description

PRIMARY OBJECTIVES:

I. To conduct a pilot study of probiotics prior to surgery in operable breast and lung cancer patients.

II. To evaluate systemic and intratumoral immunomodulatory effects of probiotics in operable breast and lung cancer patients.

OUTLINE:

Patients undergo collection of blood samples at baseline and time of surgery, and collection of stool samples at baseline and after completion of probiotic regimen. Patients receive probiotics orally (PO) once on day 1, and then twice daily (BID) or three times daily (TID) for 2-4 weeks before standard of care surgery. Patients also undergo collection of tissue samples during standard of care surgery.

+Arms and interventions

ArmTypeInterventionsDescription
Supportive care (biospecimen collection, probiotic)ExperimentalProcedure: Biopsy; Procedure: Biospecimen Collection; Drug: Probiotic; Procedure: Therapeutic Conventional SurgeryPatients undergo collection of blood samples at baseline and time of surgery, and collection of stool samples at baseline and after completion of probiotic regimen. Patients receive probiotics PO once on day 1, and then BID or TID for 2-4 weeks before standard of care surgery. Patients also undergo collection of tissue samples during standard of care surgery.
  • Biopsy (Procedure), also known as BIOPSY_TYPE, Bx: Undergo biopsy
  • Biospecimen Collection (Procedure), also known as Biological Sample Collection, Biospecimen Collected: Undergo collection of blood, stool, and tissue samples
  • Probiotic (Drug): Given PO
  • Therapeutic Conventional Surgery (Procedure): Undergo standard of care surgery

+Outcome measures

Primary outcomes

  • Length and adherence of probiotics [Up to 4 weeks]: Will be collected via study diaries.
  • Percentage of CD8+, CD4+, and T-reg cells [Baseline up to 4 weeks]
  • Cytokine counts [Baseline up to 4 weeks]

+Eligibility

Sex: All, ages: 18 Years to any

Inclusion Criteria:

* >= 18 years of age
* Histologically confirmed adenocarcinoma of the breast operable stage I-III or histologically confirmed carcinoma of the lung operable stage I-III will be enrolled prior to their definitive surgery
* Patients must have adequate organ function
* Patients must be willing to provide tissue, blood and stool samples for the research study

Exclusion Criteria:

* Patients must not receive systemic neoadjuvant therapy
* Patients must not have taken any probiotics in the past 30 days prior to the enrollment
* Patients with autoimmune disease, immune deficiency such as human immunodeficiency virus (HIV), irritable bowel, known diverticulosis, and other serious gastrointestinal (GI) conditions at treating physician's discretion will be excluded

+Locations (1)

FacilityCityCountryStatus
Mayo Clinic in FloridaJacksonville, FloridaUnited States

+Investigators

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