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Breast NeoplasmNCT03273426

Prediction of pCR by Preoperative Biopsy in Breast Cancer With cCR After Neoadjuvant Chemotherapy.

A study testing Minimally-invasive biopsy and wide excision in people with Breast Neoplasm, run by Seoul National University Hospital at 1 site in South Korea.

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

The purpose of this study is to evaluate the ability of preoperative biopsy to predict correctly pathologic complete response in breast cancer patients with complete clinical response after neoadjuvant chemotherapy. Read more about this study

Who is it for?
Ages 18 to 80 years, women only
Conditions the study is for
Breast Neoplasm
What is being tested?
Minimally-invasive biopsy and wide excision
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteSouth Korea
Study dates
8 Sep 2016to 1 Feb 2018
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 to 80 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients
  • with unilateral primary cancer pathologically confirmed before neoadjuvant chemotherapy (NAC)
  • who received NAC
  • with detectable lesion / clip marker on ultrasound
  • with cT1-T3 tumors
  • clinical and imaging complete or near-complete response on MRI
  • with informed consent

Who cannot join

  • Multifocal cancer
  • Residual microcalcification
  • Contralateral breast cancer

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Seoul National University Hospital

    Seoul, 03080

Other trials in South Korea

About this study

Official title: Prediction of Pathologic Complete Response by Multiple Core Needle Biopsy or Vacuum Assisted Biopsy Before Surgery in Breast Cancer With Complete Clinical Response After Neoadjuvant Chemotherapy.

The purpose of this study is to evaluate the ability of preoperative biopsy to predict correctly pathologic complete response in breast cancer patients with complete clinical response after neoadjuvant chemotherapy.

Read the detailed description

Breast cancer patients who received neoadjuvant chemotherapy and is predicted to have achieved pathologic complete response (pCR) on MRI will enrolled. The enrolled patients will undergo either US-guided multiple core needle biopsy or US-guided vacuum-assisted biopsy of the tumor bed where it had been marked with an indicator (clip). The patient will undergo subsequent wide excision of the tumor bed. Histopathologic findings of the biopsy and the surgical specimen will be compared for pCR, and the ability of preoperative biopsies to predict pCR will be evaluated.

Conditions
Breast Neoplasm
Being tested
Minimally-invasive biopsy, wide excision
Medical subject headings
Breast Neoplasms

What participants receive

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

  • Minimally-invasive biopsyProcedure or surgery

    Also called vacuum-assisted biopsy, core-needle biopsy

    Intervention (core needle biopsy (14G) or vacuum-assisted biopsy(10G)) for complete clinical response (cCR) or near-cCR predicted by MRI.

  • wide excisionProcedure or surgery

    Surgical wide excision of the biopsied area.

Study groups in NCT03273426
Study groupRoleWhat they receive
Core needle BiopsyExperimentalUltrasound-guided core needle biopsy (14G, ≥5 cores recommended) for complete clinical response (cCR) or near-cCR predicted by MRI.
Receives: Procedure: Minimally-invasive biopsy; Procedure: wide excision
Vacuum-assisted biopsyExperimentalVacuum-assisted biopsy (10G, ≥5 cores recommended) for complete clinical response (cCR) or near-cCR predicted by MRI.
Receives: Procedure: Minimally-invasive biopsy; Procedure: wide excision

What is being measured

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

  1. Negative Predictive Value

    Percentage of participants with pathologic complete response (pCR) confirmed by surgical excision in patients predicted by biopsy to have pCR

    Measured: 2 weeks

Secondary outcomes (1)
  1. False Negative Rate

    Percentage of participants with pathologic complete response (pCR) confirmed by surgical excision in patients predicted by biopsy to have pCR

    Measured: 2 weeks

Timeline

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

  1. First posted6 Sep 2017
  2. Study start8 Sep 2016
  3. Primary completion1 Feb 2018
  4. Study completion1 Feb 2018

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
Phase N/A
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Parallel groups
Model description
Comparison of pathological findings for residual tumor between minimally-invasive biopsy procedure and subsequent wide excision of the biopsied area
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03273426
Sponsor's protocol ID
SNUHBCC002
Status last verified
Mar 2020
First submitted
4 Sep 2017
Last updated
9 Apr 2020
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: IPD including study protocol, informed consent form, clinical study report and analytic code will be shared.

Publications

  • Pfob A, Sidey-Gibbons C, Lee HB, Tasoulis MK, Koelbel V, Golatta M, Rauch GM, Smith BD, Valero V, Han W, MacNeill F, Weber WP, Rauch G, Kuerer HM, Heil J. Identification of breast cancer patients with pathologic complete response in the breast after neoadjuvant systemic treatment by an intelligent vacuum-assisted biopsy. Eur J Cancer. 2021 Jan;143:134-146. doi: 10.1016/j.ejca.2020.11.006. Epub 2020 Dec 8.

    PubMed 33307491

Questions about this trial

What is this clinical trial studying?

A study testing Minimally-invasive biopsy and wide excision in people with Breast Neoplasm, run by Seoul National University Hospital at 1 site in South Korea.

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 7 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 9 Apr 2020. 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 South Korea. 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?

Yes. Results are posted in the registry (first posted 9 Apr 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Negative Predictive Value (time frame: 2 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03273426, which also lists 1 linked publication.

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 9 Apr 2020.

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