Comparing two surgical methods for extensive intraductal carcinoma of the breast

Postoperative Disease-free Survival and Quality of Life After Modified Radical Mastectomy Versus Expanded Mckissock Surgery for Extensive Intraductal Carcinoma of the Breast: a Prospective Cohort Study Protocol

NA · Shengjing Hospital · NCT04052893

This study is testing which of two surgical methods, modified radical mastectomy or expanded Mckissock surgery, helps women with extensive intraductal carcinoma of the breast live better and longer after surgery.

Quick facts

PhaseNA
Study typeInterventional
Enrollment200 (estimated)
Ages45 Years to 75 Years
SexFemale
SponsorShengjing Hospital (other)
Locations3 sites (Benxi, Liaoning and 2 other locations)
Trial IDNCT04052893 on ClinicalTrials.gov

What this trial studies

This study investigates the outcomes of two surgical approaches for treating extensive intraductal carcinoma of the breast: modified radical mastectomy and expanded Mckissock surgery. The focus is on postoperative disease-free survival and quality of life for patients undergoing these procedures. The expanded Mckissock surgery aims to preserve the nipple-areola complex while effectively removing cancerous tissue. The study is being conducted at multiple hospitals in Liaoning, China, with a specific focus on patients with low-grade malignant tumors.

Who should consider this trial

Good fit: Ideal candidates for this study are postmenopausal women with extensive intraductal carcinoma confirmed by biopsy and without nipple involvement.

Not a fit: Patients with inflammatory breast cancer, distant metastasis, or those who have had prior chest radiotherapy may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into better surgical options that improve survival rates and quality of life for patients with extensive intraductal carcinoma.

How similar studies have performed: While the Mckissock surgery has been applied in breast-conserving surgery, this specific comparison of surgical techniques for extensive intraductal carcinoma is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 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.

Exclusion Criteria:

* 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.

Where this trial is running

Benxi, Liaoning and 2 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Breast Neoplasms, Surgery, Plastic

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.