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DCISNCT04245150

Assessing the Impact of the Microbiome on Breast Cancer Radiotherapy Toxicity

An observational study of DCIS and Invasive Breast Cancer, run by Case Comprehensive Cancer Center 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

Microorganisms in the human body (such as virus, bacteria, fungus) may have an important role in breast cancer side effects. In this study, microorganisms will be analyzed to determine which, if any,are present. It will then be determined if side effects from breast radiation are associated with these microorganisms. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
DCIS, Invasive Breast Cancer
What is being tested?
Stool sample and Skin Swab Sample
How many people
23 participants
Where
1 siteUnited States
Study dates
21 Mar 2019to 30 Jul 2024
Phase
Observational
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
  • Women only
  • Adult, Older adult

Study population: Patients with biopsy proven DCIS or invasive breast cancer, 18 years of age or older, undergoing breast conserving surgery and adjuvant radiation therapy at Cleveland Clinic.

Who may be able to join

  • Breast cancer patients with DCIS or invasive breast cancer
  • Undergoing breast conserving surgery and adjuvant radiation
  • Subjects must be willing and able to provide breast skin samples

Who cannot join

  • Active clinical breast infection (on antiobiotic for skin/breast infection or clinical diagnosis)
  • Refuse or are unable to sign informed consent form
  • Past history of breast cancer

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Cleveland Clinic, Case Comprehensive Cancer Center

    Cleveland, Ohio, 44195

Other trials in United States

About this study

Microorganisms in the human body (such as virus, bacteria, fungus) may have an important role in breast cancer side effects. In this study, microorganisms will be analyzed to determine which, if any,are present. It will then be determined if side effects from breast radiation are associated with these microorganisms. Understanding the association of microorganisms with side effects will allow the study team to look at strategies to reduce side effects for patients undergoing radiation to the breast.

Read the detailed description

This study will prospectively enroll 50 participants with with biopsy proven Ductal carcinoma in situ (DCIS) or invasive breast cancer 18 years of age or older, undergoing breast conserving surgery and adjuvant radiation therapy at Cleveland Clinic.

Each participant will have a post-surgery pre-radiotherapy stool and breast skin sample obtained, complete a medical record review for clinical data, and have complete an interview/questionnaire in order to learn about potential risk factors which will be included in the data collection form. Included information will include Stage (T, N, M, composite), receipt of chemotherapy, radiation fields and dose, BMI, hypertension (HTN), Diabetes Mellitus (DM), smoking status, history of breast infection yes/no (Data Collection Form).

Being tested
Stool sample, Skin Swab Sample
Medical subject headings
Carcinoma, Intraductal, Noninfiltrating

What participants receive

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

  • Stool sampleOther

    Stool sample

  • Skin Swab SampleOther

    Skin Swab Sample

Study groups in NCT04245150
Study groupRoleWhat they receive
Ductal Carcinoma In Situ (DCIS) or invasive breast cancerParticipants with DCIS or invasive breast cancer
Receives: Other: Stool sample; Other: Skin Swab Sample

What is being measured

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

  1. Microbiome profile as assessed by stool sample

    Microbiome profile as assessed by stool sample. Sample analysis will be done via DNA extraction and rRNA gene sequencing of stool sample

    Measured: At baseline

  2. Microbiome profile as assessed by breast skin sample

    Microbiome profile as assessed by breast skin sample. Sample analysis will be done via DNA extraction and rRNA gene sequencing of stool sample

    Measured: At baseline

  3. Correlation of the microbiome to incidence of at least grade 3 skin toxicity using the CTCAE version 4.0 scoring

    The microbiome profiles identified will be correlated with incidence of at least grade 3 skin toxicity using the CTCAE version 4.0 scoring by visual assessment. Maximum toxicity during radiation will be recorded.

    Grade 0: None Grade 1: Faint erythema or dry desquamation Grade 2: Moderate to brisk erythema; patchy moist desquamation, mostly confined to skin folds and creases; moderate edema Grade 3: Moist desquamation in areas other than skin folds and creases; bleeding induced by minor trauma or abrasion Grade 4: Life-threatening consequences; skin necrosis or ulceration of full thickness dermis; spontaneous bleeding from involved site; skin graft indicated

    Measured: 3 months post-treatment

Timeline

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

  1. First posted28 Jan 2020
  2. Study start21 Mar 2019
  3. Primary completion30 Jul 2024
  4. Study completion30 Jul 2024

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
23 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04245150
Sponsor's protocol ID
CASE5118
Status last verified
Sep 2024
First submitted
20 Dec 2019
Last updated
19 Sep 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of DCIS and Invasive Breast Cancer, run by Case Comprehensive Cancer Center 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 3 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 19 Sep 2024. 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.

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?

Microbiome profile as assessed by stool sample (time frame: At baseline). 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 19 Sep 2024.

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