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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04108117
Other study ID # 4-2019-0834
Secondary ID
Status Completed
Phase
First received
Last updated
Start date May 14, 2020
Est. completion date May 18, 2022

Study information

Verified date September 2023
Source Severance Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Robotic mastectomy with immediate reconstruction was introduced by Toesca et al. in 2015. Since then, several studies have reported the safety and feasibility of robotic nipple-sparing mastectomy with immediate reconstruction. However, most studies were conducted by single centers and had small samples. Furthermore, there is a lack of studies comparing surgical and oncologic outcomes between robotic nipple-sparing mastectomy and conventional nipple-sparing mastectomy. For this reason, this study evaluates surgical and oncologic outcomes of robotic nipple-sparing mastectomy with immediate reconstruction using international multi-center data.


Description:

This study is an international multi-center pooled analysis using prospective and retrospective studies to evaluate surgical and oncologic outcomes of robotic nipple-sparing mastectomy with immediate reconstruction. Raw data for robotic or conventional nipple-sparing mastectomy from Severance Hospital, Samsung Medical Center, the European Institute of Oncology, Changhua Christian Hospital, and Gustave Roussy is collected. Among them, Severance Hospital takes the lead at performing analysis from the data. Storage and disposal of patients' records are managed by each researcher. In the analysis process, although the collaborators can request records from Severance Hospital if necessary, they are only supposed to be provided computerized data which were originally clinical data from patients who already ended treatments. In this case, individual identifying data and medical records are not shown. Clinicopathologic variables including operation times, hospital stay, medical history, smoking history, family history, BMI, menopausal status, specimen weight, TNM stage, grade, histological type, estrogen receptor, progesterone receptor, HER2, Ki 67, and perivascular involvement are analyzed. Postoperative complications within 30 days are collected and classified by the Clavien-Dindo grade. Locoregional recurrence-free survival and local and systemic recurrences are examined. Patients whose data have been retrospective for at least one month are to be examined. Patient's and surgeon's satisfaction using Breast Q is evaluated. Categorical variables are examined using the chi-square test or Fisher's exact test if indicated. Continuous variables are examined using the independent t-test or ANOVA if indicated. The estimated sample size from the four institutions is about 300 cases for robotic nipple-sparing mastectomy and matched cases for conventional nipple-sparing mastectomy. Propensity matching analysis is applied to reduce confounding factors.


Recruitment information / eligibility

Status Completed
Enrollment 659
Est. completion date May 18, 2022
Est. primary completion date May 4, 2022
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Female
Age group N/A and older
Eligibility Inclusion Criteria: - Women who underwent nipple sparing mastectomy and immediate reconstruction - Women with early breast cancer - Women with germline BRCA 1/2 mutation or germline mutations in genetic susceptibility genes - Women with interstitial mastopathy - Women with risk-reducing mastectomy or contralateral mastectomy Exclusion Criteria: - Male patients - Women with stage IV disease at diagnosis - Women who underwent previous breast cancer surgery - Women who received prior radiotherapy for the ipsilateral breast

Study Design


Intervention

Procedure:
Robotic nipple sparing mastectomy
Robotic nipple sparing mastectomy means nipple sparing mastectomy performed using robotic surgical systems.

Locations

Country Name City State
Korea, Republic of Yonsei University College of Medicine Seoul

Sponsors (4)

Lead Sponsor Collaborator
Severance Hospital Changhua Christian Hospital, European Institute of Oncology, Samsung Medical Center

Country where clinical trial is conducted

Korea, Republic of, 

References & Publications (16)

Galimberti V, Morigi C, Bagnardi V, Corso G, Vicini E, Fontana SKR, Naninato P, Ratini S, Magnoni F, Toesca A, Kouloura A, Rietjens M, De Lorenzi F, Vingiani A, Veronesi P. Oncological Outcomes of Nipple-Sparing Mastectomy: A Single-Center Experience of 1989 Patients. Ann Surg Oncol. 2018 Dec;25(13):3849-3857. doi: 10.1245/s10434-018-6759-0. Epub 2018 Sep 17. — View Citation

Lai HW, Chen ST, Lin SL, Chen CJ, Lin YL, Pai SH, Chen DR, Kuo SJ. Robotic Nipple-Sparing Mastectomy and Immediate Breast Reconstruction with Gel Implant: Technique, Preliminary Results and Patient-Reported Cosmetic Outcome. Ann Surg Oncol. 2019 Jan;26(1):42-52. doi: 10.1245/s10434-018-6704-2. Epub 2018 Aug 14. — View Citation

Lai HW, Chen ST, Lin SL, Lin YL, Wu HK, Pai SH, Chen DR, Kuo SJ. Technique for single axillary incision robotic assisted quadrantectomy and immediate partial breast reconstruction with robotic latissimus dorsi flap harvest for breast cancer: A case report. Medicine (Baltimore). 2018 Jul;97(27):e11373. doi: 10.1097/MD.0000000000011373. — View Citation

Lai HW, Lin SL, Chen ST, Chen SL, Lin YL, Chen DR, Kuo SJ. Robotic Nipple-sparing Mastectomy and Immediate Breast Reconstruction with Gel Implant. Plast Reconstr Surg Glob Open. 2018 Jun 11;6(6):e1828. doi: 10.1097/GOX.0000000000001828. eCollection 2018 Jun. — View Citation

Lai HW, Lin SL, Chen ST, Lin YL, Chen DR, Pai SS, Kuo SJ. Robotic nipple sparing mastectomy and immediate breast reconstruction with robotic latissimus dorsi flap harvest - Technique and preliminary results. J Plast Reconstr Aesthet Surg. 2018 Oct;71(10):e59-e61. doi: 10.1016/j.bjps.2018.07.006. Epub 2018 Aug 2. No abstract available. — View Citation

Lai HW, Wang CC, Lai YC, Chen CJ, Lin SL, Chen ST, Lin YJ, Chen DR, Kuo SJ. The learning curve of robotic nipple sparing mastectomy for breast cancer: An analysis of consecutive 39 procedures with cumulative sum plot. Eur J Surg Oncol. 2019 Feb;45(2):125-133. doi: 10.1016/j.ejso.2018.09.021. Epub 2018 Oct 17. — View Citation

Lai HW. Robotic Nipple-Sparing Mastectomy and Immediate Breast Reconstruction with Gel Implant. Ann Surg Oncol. 2019 Jan;26(1):53-54. doi: 10.1245/s10434-018-6711-3. Epub 2018 Aug 25. No abstract available. — View Citation

Park HS, Kim JH, Lee DW, Song SY, Park S, Kim SI, Ryu DH, Cho YU. Gasless Robot-Assisted Nipple-Sparing Mastectomy: A Case Report. J Breast Cancer. 2018 Sep;21(3):334-338. doi: 10.4048/jbc.2018.21.e45. Epub 2018 Sep 20. — View Citation

Park HS, Lee J, Lai HW, Park JM, Ryu JM, Lee JE, Kim JY, Marrazzo E, De Scalzi AM, Corso G, Montemurro F, Gazzetta G, Pozzi G, Toesca A. Surgical and Oncologic Outcomes of Robotic and Conventional Nipple-Sparing Mastectomy with Immediate Reconstruction: I — View Citation

Sarfati B, Honart JF, Leymarie N, Kolb F, Rimareix F. Robotic-assisted Nipple Sparing Mastectomy: A feasibility study on cadaveric models. J Plast Reconstr Aesthet Surg. 2016 Nov;69(11):1571-1572. doi: 10.1016/j.bjps.2016.08.007. Epub 2016 Sep 8. No abstract available. — View Citation

Sarfati B, Honart JF, Leymarie N, Rimareix F, Al Khashnam H, Kolb F. Robotic da Vinci Xi-assisted nipple-sparing mastectomy: First clinical report. Breast J. 2018 May;24(3):373-376. doi: 10.1111/tbj.12937. Epub 2017 Dec 18. — View Citation

Sarfati B, Struk S, Leymarie N, Honart JF, Alkhashnam H, Kolb F, Rimareix F. Robotic Nipple-Sparing Mastectomy with Immediate Prosthetic Breast Reconstruction: Surgical Technique. Plast Reconstr Surg. 2018 Sep;142(3):624-627. doi: 10.1097/PRS.0000000000004703. — View Citation

Sarfati B, Struk S, Leymarie N, Honart JF, Alkhashnam H, Tran de Fremicourt K, Conversano A, Rimareix F, Simon M, Michiels S, Kolb F. Robotic Prophylactic Nipple-Sparing Mastectomy with Immediate Prosthetic Breast Reconstruction: A Prospective Study. Ann Surg Oncol. 2018 Sep;25(9):2579-2586. doi: 10.1245/s10434-018-6555-x. Epub 2018 Jun 29. — View Citation

Toesca A, Peradze N, Galimberti V, Manconi A, Intra M, Gentilini O, Sances D, Negri D, Veronesi G, Rietjens M, Zurrida S, Luini A, Veronesi U, Veronesi P. Robotic Nipple-sparing Mastectomy and Immediate Breast Reconstruction With Implant: First Report of Surgical Technique. Ann Surg. 2017 Aug;266(2):e28-e30. doi: 10.1097/SLA.0000000000001397. No abstract available. — View Citation

Toesca A, Peradze N, Manconi A, Galimberti V, Intra M, Colleoni M, Bonanni B, Curigliano G, Rietjens M, Viale G, Sacchini V, Veronesi P. Robotic nipple-sparing mastectomy for the treatment of breast cancer: Feasibility and safety study. Breast. 2017 Feb;31:51-56. doi: 10.1016/j.breast.2016.10.009. Epub 2016 Nov 2. — View Citation

Toesca A, Peradze N, Manconi A, Nevola Teixeira LF. Reply to the letter to the editor "Robotic-assisted Nipple Sparing Mastectomy: A feasibility study on cadaveric models" by Sarfati B. et al. J Plast Reconstr Aesthet Surg. 2017 Apr;70(4):558-560. doi: 10.1016/j.bjps.2016.12.022. Epub 2017 Jan 23. No abstract available. — View Citation

* Note: There are 16 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Postoperative complication rates in 30 days Postoperative complication rates are calculated as total number of postoperative complication cases per total operation cases. Postoperative 30 days
Primary Clavien-Dindo grade of postoperative complications Clavien-Dindo grade of postoperative complications is evaluated. The highest grade of postoperative complications are used for the analysis. Postoperative 30 days
Primary Nipple necrosis rates Nipple necrosis rates are calculated as number of total nipple necrosis cases per total operation cases. Postoperative 30 days
Primary Recurrence free survival (RFS) Events of RFS includes locoregional recurrence, distant recurrence, and death. Contralateral breast cancer and second primary malignancy are considered to be censored data. Postoperative 5 years
Secondary Operation times Mastectomy time or reconstruction time Time during operation
Secondary Locoregional recurrence-free survival (LRFS) In breast tumor recurrences (IBTR), regional recurrences including axillary, internal mammary, or supraclavicular lymph node recurrences, and death without any cause are events of locoregional recurrence-free survival. Five year LRFS is measured. Distant metastasis, contralateral breast cancer and second primary malignancy are considered to be censored data. Postoperative 5 years
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