NCT07237828

Brief Summary

Breast cancer is a malignant tumor that seriously threatens the health of women, with an increasing incidence rate. The current main treatment methods include multidisciplinary diagnosis and treatment such as surgery, radiotherapy, chemotherapy, and endocrine therapy, among which surgery is the key. Postoperative care is also very important. Traditional breast surgery requires long-term placement of drainage tubes after the operation. However, long-term placement of drainage tubes increases the incidence of postoperative complications such as infection and delayed wound healing, prolongs hospital stays, increases economic burden, and also affects the aesthetic outcome. Our team has innovatively adopted the "reverse-sequence" endoscopic nipple-sparing-mastectomy with direct-to-implant breast reconstruction. This method is highly efficient and safe, with no incisions on the surface of the breast, reducing the risk of incision dehiscence and the probability of flap ischemia and necrosis. Based on this, our team proposes to appropriately relax the drainage criteria and remove the drainage tube earlier under the premise of ensuring the sterility of the effusion, and preliminary findings show that patients have better postoperative aesthetic outcomes, with a lower incidence of flap infection, ischemia, and necrosis than expected, and the degree of breast deformation caused by radiotherapy is also reduced. However, there is still controversy over the pros and cons of drainage criteria. Some scholars believe that strict drainage criteria can reduce the risk of infection and implant displacement, and plastic surgeons are more concerned about the impact of long-term tube placement on aesthetic outcomes and quality of life. Currently there is a lack of large sample, multicenter, randomized controlled studies to provide high - level evidence. Therefore, our team plans to conduct a national multicenter, open, randomized controlled study to compare the advantages and disadvantages of the two drainage methods under the premise of not reducing postoperative surgical and oncological safety, in order to explore the optimal timing for drain removal and improve patients' satisfaction with the reconstructed breast.

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
379

participants targeted

Target at P75+ for not_applicable breast-cancer

Timeline
73mo left

Started Dec 2025

Longer than P75 for not_applicable breast-cancer

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress8%
Dec 2025Jun 2032

First Submitted

Initial submission to the registry

September 20, 2025

Completed
2 months until next milestone

First Posted

Study publicly available on registry

November 20, 2025

Completed
11 days until next milestone

Study Start

First participant enrolled

December 1, 2025

Completed
6.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2032

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2032

Last Updated

November 20, 2025

Status Verified

May 1, 2025

Enrollment Period

6.6 years

First QC Date

September 20, 2025

Last Update Submit

November 14, 2025

Conditions

Keywords

Breast CancerMinimal invasive surgeryNipple-sparing mastectomyEndoscopic surgery

Outcome Measures

Primary Outcomes (1)

  • Aesthetic outcome evaluation--BREAST-Q scores

    The Satisfaction with Breasts module of BREAST-Q questionnaire is utilized to assess patient-reported aesthetic outcomes. Transformed scores range from 0 to 100, with higher scores indicating better outcomes. Both raw questionnaire scores and standardized transformed scores will be documented, along with pre- to postoperative differences in transformed scores

    Preoperative (baseline), 3-month postoperative

Secondary Outcomes (13)

  • Drainage tube indwelling duration

    Perioperative

  • Quality of Life--EORTC Quality of Life scores

    14 days postoperative and 3 months postoperative

  • wound care

    3 months postoperative

  • Complications

    3 months, 1 year and 2 years postoperative

  • Aesthetic outcome evaluation--BREAST-Q scores

    2 years postoperative

  • +8 more secondary outcomes

Study Arms (2)

Intervention group

EXPERIMENTAL

Remove drainage tubes on postoperative day 5

Procedure: Drain Removal Timing After Endoscopic Breast Reconstruction Surgery

Control group

NO INTERVENTION

Remove drainage tubes when the daily drainage volume is less than 30 ml/day for two consecutive days after surgery.

Interventions

The optimal timing for earlier or later removal of drainage tubes after endoscopic breast reconstruction surgery.

Intervention group

Eligibility Criteria

Age18 Years - 70 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Female patients aged 18-70 years (inclusive);
  • Patients scheduled for unilateral or bilateral reverse-sequence endoscopic nipple-sparing- mastectomy with immediate prepectoral direct-to-implant breast reconstruction, with the option of concurrent contralateral endoscopic breast augmentation;
  • Patients with preoperative pathological confirmation of carcinoma in situ, invasive cancer, or those undergoing prophylactic mastectomy;
  • Patients with a maximum tumor diameter≤5 cm (before/after neoadjuvant chemotherapy), and no clinical or radiological evidence of nipple, skin, chest wall invasion, or distant metastasis;
  • BMI \< 40 kg/m²;
  • Implant volume \< 600 mL;
  • Patients who are able and willing to sign the informed consent form.

You may not qualify if:

  • History of breast surgery within 1 year prior to this operation (excluding VABB and biopsy);
  • Tumor invasion of the skin, pectoralis major muscle, chest wall, or nipple-areola complex;
  • Advanced tumor stage (M1);
  • Breast cancer during pregnancy or lactation;
  • Scars below the nipple level and a history of previous radiotherapy;
  • Patients with severe comorbidities before surgery, poorly controlled diabetes, immunodeficiency, or poor general condition that cannot tolerate surgery;
  • HbA1c \> 7.5%;
  • Active smoking history (≥20 cigarettes per day);
  • Intraoperative flap burns, intraoperative nipple excision; postoperative complications such as infection, flap ischemia, or surgical cavity bleeding within 1-4 days after surgery; or other causes leading to incisions on the surface of the breast; patients who undergo nipple excision within 1 month after surgery should be excluded from the study;
  • Currently participating in other clinical studies that may affect participation in this trial.
  • Refusal to sign the informed consent form.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

West China Hospital, SiChuan University

Chengdu, Sichuan, 610041, China

Location

Related Publications (6)

  • Feng Y, Xie Y, Liang F, Zhou J, Yang H, Qiu M, Zhang Q, Liu Y, Liang P, Du Z. Twenty-four-hour discharge of patients after endoscopic nipple-sparing mastectomy and direct-to-implant breast reconstruction: safety and aesthetic outcomes from a prospective cohort study. Br J Surg. 2024 Jan 3;111(1):znad356. doi: 10.1093/bjs/znad356. No abstract available.

    PMID: 37991082BACKGROUND
  • Zhou J, Xie Y, Liang F, Feng Y, Yang H, Qiu M, Zhang Q, Chung K, Dai H, Liu Y, Liang P, Du Z. A novel technique of reverse-sequence endoscopic nipple-sparing mastectomy with direct-to-implant breast reconstruction: medium-term oncological safety outcomes and feasibility of 24-h discharge for breast cancer patients. Int J Surg. 2024 Apr 1;110(4):2243-2252. doi: 10.1097/JS9.0000000000001134.

    PMID: 38348883BACKGROUND
  • Yang H, Liang F, Xie Y, Qiu M, Du Z. Single axillary incision reverse-order endoscopic nipple/skin-sparing mastectomy followed by subpectoral implant-based breast reconstruction: Technique, clinical outcomes, and aesthetic results from 88 preliminary procedures. Surgery. 2023 Sep;174(3):464-472. doi: 10.1016/j.surg.2023.05.037. Epub 2023 Jul 7.

    PMID: 37422354BACKGROUND
  • Zhang S, Xie Y, Liang F, Wang Y, Wen N, Zhou J, Feng Y, Liu X, Lv Q, Du Z. Video-assisted Transaxillary Nipple-sparing Mastectomy and Immediate Implant-based Breast Reconstruction: A Novel and Promising Method. Aesthetic Plast Surg. 2022 Feb;46(1):91-98. doi: 10.1007/s00266-021-02527-6. Epub 2021 Aug 23.

    PMID: 34424367BACKGROUND
  • Jia-Jian C, Nai-Si H, Jing-Yan X, Ben-Long Y, Guang-Yu L, Gen-Hong D, Zhi-Min S, Jiong W. Current Status of Breast Reconstruction in Southern China: A 15 Year, Single Institutional Experience of 20,551 Breast Cancer Patients. Medicine (Baltimore). 2015 Aug;94(34):e1399. doi: 10.1097/MD.0000000000001399.

    PMID: 26313786BACKGROUND
  • Sung H, Ferlay J, Siegel RL, Laversanne M, Soerjomataram I, Jemal A, Bray F. Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries. CA Cancer J Clin. 2021 May;71(3):209-249. doi: 10.3322/caac.21660. Epub 2021 Feb 4.

    PMID: 33538338BACKGROUND

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Clinical Professor

Study Record Dates

First Submitted

September 20, 2025

First Posted

November 20, 2025

Study Start

December 1, 2025

Primary Completion (Estimated)

June 30, 2032

Study Completion (Estimated)

June 30, 2032

Last Updated

November 20, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will share

Qualified researchers can request access to anonymized individual patient-level data via the request portal. All IPD requests should be emailed to Dr. Zhenggui Du, the general project leader, and will be evaluated by Dr. Du and the head of the collaborating organization to decide whether to approve.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
After publication of relevant research outputs, such as academic papers and books.
Access Criteria
When a request has been approved, the investigator will provide access to the de-identified individual patient-level data in the data management platform (Electronic Data Capture, EDC). A signed Data Sharing Agreement (non-negotiable contract for data accessors) must be in place before accessing the requested information. Additionally, all users will need to accept the terms and conditions of the data management platform to gain access.
More information

Locations