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Anatomic Stage I Breast Cancer AJCC v8Early Phase 1NCT04857697

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

A Early Phase 1 study testing Biopsy, Biospecimen Collection and Probiotic in people with Anatomic Stage I Breast Cancer AJCC v8 and Anatomic Stage II Breast Cancer AJCC v8, run by Mayo Clinic at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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). Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Biopsy, Biospecimen Collection and Probiotic
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
6 participants
Where
1 siteUnited States
Study dates
1 Jul 2021to 8 Mar 2023
Phase
Early Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • >= 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

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Mayo Clinic in Florida

    Jacksonville, Florida, 32224-9980

Other trials in United States

About this study

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

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.

Read the detailed description

PRIMARY OBJECTIVES:

  1. 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.

Being tested
Biopsy, Biospecimen Collection, Probiotic, Therapeutic Conventional Surgery
Medical subject headings
Lung Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BiopsyProcedure or surgery

    Also called BIOPSY_TYPE, Bx

    Undergo biopsy

  • Biospecimen CollectionProcedure or surgery

    Also called Biological Sample Collection, Biospecimen Collected

    Undergo collection of blood, stool, and tissue samples

  • ProbioticDrug

    Given PO

  • Therapeutic Conventional SurgeryProcedure or surgery

    Undergo standard of care surgery

Study groups in NCT04857697
Study groupRoleWhat they receive
Supportive care (biospecimen collection, probiotic)ExperimentalPatients 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.
Receives: Procedure: Biopsy; Procedure: Biospecimen Collection; Drug: Probiotic; Procedure: Therapeutic Conventional Surgery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Length and adherence of probiotics

    Will be collected via study diaries.

    Measured: Up to 4 weeks

  2. Percentage of CD8+, CD4+, and T-reg cells

    Measured: Baseline up to 4 weeks

  3. Cytokine counts

    Measured: Baseline up to 4 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Apr 2021
  2. Study start1 Jul 2021
  3. Primary completion8 Mar 2023
  4. Study completion8 Mar 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Early Phase 1
Primary purpose
Supportive care
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04857697
Sponsor's protocol ID
MC210302
Other IDs
NCI-2021-03139, 20-011177
Status last verified
Apr 2023
First submitted
21 Apr 2021
Last updated
21 Apr 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Biopsy, Biospecimen Collection and Probiotic in people with Anatomic Stage I Breast Cancer AJCC v8 and Anatomic Stage II Breast Cancer AJCC v8, run by Mayo Clinic at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Apr 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Length and adherence of probiotics (time frame: Up to 4 weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Apr 2023.

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