NCT04052893

Brief Summary

Extensive intraductal carcinoma of the breast refers to a type of breast cancer in which ≥ 25% of ductal carcinoma in situ is present in invasive tumors and there is a scattered distribution of ductal carcinoma in situ (DCIS) in or around the invasive carcinoma. Compared with DCIS negative for extensive intraductal component, DCIS positive for extensive intraductal component is not sensitive to radiotherapy. Mckissock surgery was applied in breast-conserving surgery for breast cancer in 2016. Jianyi Li and the team members (Shengjing Hospital of China Medical University, Shenyang, China) applied this technique in breast-conserving surgery with preservation of the nipple-areola complex. This surgical technique is suitable for low-grade malignant tumors and has better prognosis than radical mastectomy. The purpose of this study is to investigate postoperative disease-free survival and quality of life after modified radical mastectomy versus expanded Mckissock surgery for extensive intraductal carcinoma of the breast. Results from this study will indicate the efficacy of expanded Mckissock surgery in the treatment of extensive intraducatal carcinoma of the breast.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
200

participants targeted

Target at P75+ for not_applicable

Timeline
4mo left

Started Oct 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

3 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress95%
Oct 2019Sep 2026

First Submitted

Initial submission to the registry

August 6, 2019

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 12, 2019

Completed
2 months until next milestone

Study Start

First participant enrolled

October 1, 2019

Completed
5.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2026

Expected
Last Updated

February 8, 2022

Status Verified

February 1, 2022

Enrollment Period

5.9 years

First QC Date

August 6, 2019

Last Update Submit

February 6, 2022

Conditions

Keywords

SurgeryPlastic

Outcome Measures

Primary Outcomes (1)

  • Disease-free survival.

    Disease-free survival refers to the time from surgical resection of breast cancer to clinically confirmed local recurrence, distant metastasis, second primary tumor diagnosis, or patient death.

    5 years

Secondary Outcomes (3)

  • European Organization for Research and Treatment of Cancer (EORTC) Breast Cancer-Specific Quality of Life Questionnaire (QLQ-BR23) scale

    5 years

  • Breast symmetry

    5 years

  • Medical cost

    During hospitalization, an average of 2 weeks

Study Arms (2)

Study group

EXPERIMENTAL

100 patients will be assigned into a study group.

Procedure: Expanded Mckissock surgery

Control group

ACTIVE COMPARATOR

100 patients will be assigned into a control group.

Procedure: Modified radical mastectomy

Interventions

Expanded Mckissock surgery: (1) According to patient's preoperative imaging results and subjective expectations of their own breast morphology, the incision design and breast surface marking will be performed under the standing position. (2) After general anesthesia, the upper limbs will be abducted, and the upper body will be tilted by 15°-20° to dermatize the labeled skin around and below the areola. (3) The medial and lateral flaps will be dissociated to remove the total gland with nipple and areola preserved. (4) The cutting-edge of nipple-areola complex will be sent for cancer screening. The axillary lymph node biopsy or cleaning will be performed along the outer edge of the pectoralis major muscle. (5) The vertical subcutaneous pedicle flaps will be W-folded, and the flaps on both sides will be pulled to the vertical pedicle to reshape the breast. During this process, the breast and armpit drainage tubes will be indwelled.

Study group

The patients will be placed in the supine position. After intravenous anesthesia, the tumor boundary will be marked and the breast will be removed. The vertical subcutaneous pedicle flaps will be W-folded, and the flaps on both sides will be pulled to the vertical pedicle to reshape the breast. During this process, the breast and armpit drainage tubes will be indwelled.

Control group

Eligibility Criteria

Age45 Years - 75 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with extensive intraductal carcinoma confirmed by hollow needle biopsy;
  • the lesion not involving the nipple as confirmed by enhanced MR imaging of the breast;
  • Bra cup size: B or higher;
  • postmenopausal patients;
  • provision of written informed consent.

You may not qualify if:

  • The cutting edge of nipple-areola complex tested positive for extensive intraductal carcinoma twice;
  • preoperative nipple hemorrhage;
  • bilateral breast cancer;
  • inflammatory breast cancer;
  • distant metastasis;
  • other cancers or those who receive chest radiotherapy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

General Hospital of Benxi Iron & Steel Industry Group of Liaoning Health Industry Group

Benxi, Liaoning, 117000, China

RECRUITING

Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute

Shengyang, Liaoning, 110042, China

RECRUITING

Shengjing Hospital of China Medical University

Shenyang, Liaoning, 110004, China

RECRUITING

MeSH Terms

Conditions

Breast Neoplasms

Interventions

Mastectomy, Modified Radical

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

Mastectomy, RadicalMastectomySurgical Procedures, Operative

Study Officials

  • Jianyi Li

    Shengjing Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

August 6, 2019

First Posted

August 12, 2019

Study Start

October 1, 2019

Primary Completion

September 1, 2025

Study Completion (Estimated)

September 1, 2026

Last Updated

February 8, 2022

Record last verified: 2022-02

Locations