Comparison Between Prepectoral and Subpectoral Breast Reconstruction

NCT ID: NCT05833659

Last Updated: 2023-04-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

88 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-03-01

Study Completion Date

2027-03-31

Brief Summary

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There are controversies about breast implant-based reconstruction techniques. Our center pioneered single-port insufflation endoscopic nipple-sparing mastectomy (SIE-NSM) combined with stage I prosthesis reconstruction. The study's primary objective is to compare single-port endoscopic NSM combined with pre-pectoral breast reconstruction to the subpectoral breast reconstruction group regarding breast satisfaction.

This study is an ambispective cohort study. The study will be conducted at Beijing Friendship Hospital, affiliated with Capital Medical University. Patients will be enrolled retrospectively from January 2014 to March 2022 by reviewing the medical records and recruited prospectively from March 2022 to March 2025. The two cohorts are the pre-pectoral breast reconstruction cohort and the subpectoral breast reconstruction cohort, both following single-port insufflation endoscopic nipple-sparing mastectomy. The primary outcome of this study is postoperative breast satisfaction, which the BREAST-Q score will measure. The different variables will be compared using the Χ2 test for categorical variables and the Mann-Whitney test for continuous variables.

Detailed Description

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Sample size and statistical analysis This study is an ambispective cohort study. According to the previous retrospective research data of the center, the breast satisfaction score is the main research object. The standard deviation was 2.6, the non-inferiority margin was 0.15, the test level was α=0.05, β=0.2, and a one-sided test was performed. Eighty patients will be needed for two cohorts in a 1:1 ratio. Considering the 10% loss to follow-up rate, 44 patients will be required to be enrolled in each group.

Conditions

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Stage II Breast Cancer Stage I Breast Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

OTHER

Study Groups

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The prepectoral breast reconstruction

The patients received prepectoral breast reconstruction after single-port insufflation endoscopic nipple-sparing mastectomy

The breast reconstruction method after single-port insufflation endoscopic nipple-sparing mastectomy

Intervention Type PROCEDURE

Group A:The prepectoral breast reconstruction. Group B:The subpectoral breast reconstruction

The subpectoral breast reconstruction

The patients received subpectoral breast reconstruction after single-port insufflation endoscopic nipple-sparing mastectomy

The breast reconstruction method after single-port insufflation endoscopic nipple-sparing mastectomy

Intervention Type PROCEDURE

Group A:The prepectoral breast reconstruction. Group B:The subpectoral breast reconstruction

Interventions

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The breast reconstruction method after single-port insufflation endoscopic nipple-sparing mastectomy

Group A:The prepectoral breast reconstruction. Group B:The subpectoral breast reconstruction

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. Female patients with preoperative pathologically confirmed early-stage invasive breast cancer (stage I or stage II) by core needle biopsy.
2. Breast-conserving surgery is not possible due to the presence of contraindications to breast-conserving surgery, or the patient actively requests total mastectomy.
3. Patients having willingness for breast reconstruction.
4. Age between 18 to 70 years.
5. Maximum diameter of the cancer lesion ≤ 3 cm.
6. Physical examination and breast magnetic resonance imaging (MRI) confirmed that the tumor did not invade the skin, subcutaneous tissue, or chest wall.
7. The distance between the lesion and the nipple is ≥2 cm, and it is confirmed by physical examination and MRI that the nipple-areola complex is not invaded.
8. Eastern Cooperative Oncology Group (ECOG) Performance Status Scale of 0 to 2.

Exclusion Criteria

1. patients having serious medical diseases, including unstable angina pectoris, myocardial infarction, and cerebrovascular accident within 6 months.
2. Having history of malignant tumor (s) within 5 years.
3. Patients under immunosuppressive therapy for organ transplantation.
4. Having continuous systemic steroid hormone therapy.
5. Pregnant or lactating women.
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Beijing Health Promotion Association

UNKNOWN

Sponsor Role collaborator

Beijing Friendship Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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guoxuan gao, MD

Role: PRINCIPAL_INVESTIGATOR

Department of General Surgery, Beijing Friendship Hospital, Capital Medical University

Locations

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Beijing Friendship Hospital, Capital medical University

Beijing, Beijing Municipality, China

Site Status RECRUITING

Countries

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China

Central Contacts

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guoxuan gao, MD

Role: CONTACT

+861063138712

Facility Contacts

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guoxuan Guo

Role: primary

+861063138712

Other Identifiers

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RESPECT

Identifier Type: -

Identifier Source: org_study_id

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