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Prophylactic Nipple Sparing Mastectomy (NSM)PREVENTNCT05251285

Post Market Clinical Follow-up Study on da Vinci® Robotic-assisted Prophylactic Nipple Sparing Mastectomy With Breast Reconstruction

An observational study of Prophylactic Nipple Sparing Mastectomy (NSM), run by Intuitive Surgical at 2 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The objective of this study is to collect post-market clinical safety and performance data on the robotic assisted prophylactic Nipple Sparing Mastectomy (R-NSM) surgery performed with the da Vinci Xi/X Surgical System as part of a PMCF Plan. Read more about this study

Who is it for?
Ages 18 years and older, women only
What is being tested?
Nipple-Sparing Mastectomy
Type of treatment
Surgery or procedure
How many people
7 participants
Where
2 sitesin 2 countries
Study dates
18 Jan 2022to 18 Jul 2023
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Study population: Women eligible for prophylactic robotic-assisted Nipple-Sparing Mastectomy (unilateral or bilateral) according to the Instructions For Use (IFU) of da Vinci Xi/X Surgical System

Who may be able to join

  • Subject is a woman, candidate for a prophylactic R-NSM surgical procedure (unilateral or bilateral) according to the Instructions For Use (IFU) of da Vinci Xi/X Surgical System
  • Subject has cup size A, B or C,
  • Subject is 18 years of age or older,
  • Subject is a candidate for reconstruction,
  • Subject is willing to participate as demonstrated by signing the informed consent,
  • Subject benefits from a health care system/insurance.

Who cannot join

  • Subject is pregnant or is lactating,
  • Subject has active cancer or pre-cancer (Ductal Carcinoma In Situ [DCIS]) on breast to be robotically operated,
  • Subject has cancer involving the Nipple Areolar Complex (NAC), inflammatory breast cancer or T4d lesion, clinical evidence of skin involvement or T4b lesion, and clinical or radiological evidence of chest wall invasion.
  • Subject has ASA score ˃ III or has known thromboembolism risks or, is at risk in relation to anesthesia,
  • Subject presents severe lack of cooperation due to psychological or severe systemic illness,
  • Subject has medical conditions contraindicating general anesthesia or surgical approach,
  • Subject is part of vulnerable population (e.g., prisoners, mentally disabled).

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

France1 site
  • Gustave Roussy Cancer Campus

    Villejuif, 94800

Other trials in France

Italy1 site
  • Istituto Europeo di Oncologia

    Milan, 20141

Other trials in Italy

About this study

The objective of this study is to collect post-market clinical safety and performance data on the robotic assisted prophylactic Nipple Sparing Mastectomy (R-NSM) surgery performed with the da Vinci Xi/X Surgical System as part of a PMCF Plan.

Read the detailed description

This is an observational post-market study. Women will be screened for participation where the decision to undergo prophylactic R-NSM surgery has already been made as part of their medical care. In order for women to be enrolled, surgeons must perform the surgery according to the Instructions For Use (IFU) of da Vinci Xi/X Surgical System. Women will sign an informed consent form for their participation in the study. Women will be prospectively followed at 6 weeks, 3 months and 1 year post-surgery, which is within the standard of care. Data will be collected prospectively from the medical records and women will be asked to complete preoperative and postoperative questionnaires.

Being tested
Nipple-Sparing Mastectomy
Keywords
robot, robotic, Nipple Sparing Mastectomy, NSM, da Vinci, surgery, mastectomy, prophylactic NSM, robot-assisted

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Nipple-Sparing MastectomyProcedure or surgery

    Nipple-Sparing Mastectomy using da Vinci X/Xi Surgical System

Study groups in NCT05251285
Study groupRoleWhat they receive
Prophylactic Nipple-Sparing MastectomyNot described
Receives: Procedure: Nipple-Sparing Mastectomy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of intraoperative R-NSM procedure and device-related complications

    Measured: Assessed during surgery to 42 days after surgery

  2. Number of overall post-operative complications at 6 weeks

    Measured: 6 weeks after the surgery

  3. Number of overall post-operative complications at 3 months

    Measured: 3 months after the surgery

  4. Number of overall post-operative complications at 1 year

    Measured: 1 year after the surgery

  5. Nipple-Areola Complex (NAC) necrosis occurrence (using SKIN composite score definition of D2 or higher) observed at 6 weeks after surgery

    Measured: 6 weeks after surgery

  6. Nipple-Areola Complex (NAC) Preservation Rate at 6 weeks after surgery

    Measured: 6 weeks after surgery

  7. Number of conversions to open surgery

    Measured: Assessed during surgery

  8. OR & procedure (open surgery dissection, docking and console) times, including drainage and reconstruction times

    Measured: Assessed during surgery to 6 weeks after surgery

  9. Number of transfusion and transfused units

    Measured: Assessed during surgery to 6 weeks after surgery

  10. Hospital Length of Stay (LOS)

    Measured: Assessed during the 6 weeks after surgery

  11. Results of the SKIN score (Mayo clinic) at 6 weeks or upon surgeon's practice

    Measured: at 6 weeks or upon surgeon's practice

  12. Number of readmissions associated with NSM surgery at 6 weeks

    Measured: 6 weeks after surgery

  13. Number of readmissions associated with NSM surgery at 3 months

    Measured: 3 months after surgery

  14. Number of reoperations associated with NSM surgery at 6 weeks

    Measured: 6 weeks after surgery

  15. Number of reoperations associated with NSM surgery at 3 months

    Measured: 3 months after surgery

  16. Result of BREAST-QTM (Quality of life) at 3 months

    Measured: 3 months after surgery

  17. Result of BREAST-QTM (Quality of life) at 1 year

    Measured: 1 year after surgery

  18. Result of NAC questionnaire (Quality of life) at 3 months

    Measured: 3 months after surgery

  19. Result of NAC questionnaire (Quality of life) at 1 year

    Measured: 1 year after surgery

  20. Breast Cancer Occurrence Assessment at 1 year according to usual medical practice

    Measured: 1 year after surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Feb 2022
  2. Study start18 Jan 2022
  3. Primary completion18 Jul 2023
  4. Study completion18 Jul 2023

Why it stopped: Low enrolment

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
7 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05251285
Sponsor's protocol ID
PN #1082409C
Acronym
PREVENT
Status last verified
Dec 2023
First submitted
2 Feb 2022
Last updated
22 Dec 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Prophylactic Nipple Sparing Mastectomy (NSM), run by Intuitive Surgical at 2 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 22 Dec 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in France, Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: Low enrolment). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of intraoperative R-NSM procedure and device-related complications (time frame: Assessed during surgery to 42 days after surgery). The study lists 20 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Dec 2023.

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