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MastectomyPRELYMCANCT02894021

PREvention of Post-mastectomy LYMphoceles by PAdding

A study testing classic closure and padding in people with Mastectomy, run by Centre Hospitalier Universitaire, Amiens at 3 sites in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Lymphoceles, or seromas, are the most frequent complication following mastectomy and are associated or not with axillary dissection occurring in 10 to 90% of cases. It is defined as the presence of a palpable post operative serous accumulation that is bothersome for the patient and requires a puncture and drainage or… Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Mastectomy
What is being tested?
classic closure and padding
Could I receive a placebo?
No, everyone receives an active treatment
How many people
90 participants
Where
3 sitesFrance
Study dates
17 Sep 2013to 19 Aug 2022
Phase
Interventional
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

Who may be able to join

  • Age ≥ 18 years
  • Female gender
  • Patients with infiltrating or in situ breast cancer
  • Indication of surgical treatment by mastectomy
  • Patient providing written informed consent
  • Patient with health insurance coverage
  • Ability to provide voluntary written informed consent

Who cannot join

  • Informed consent cannot be obtain
  • Pregnant or lactating women
  • Patients undergoing immediate breast reconstruction
  • Patients with cancer untreatable by mastectomy, non curative mastectomy: partial mastectomies, preventive mastectomies (BRCA genetic mutations)
  • Patients under legal protection or unable to come to a center
  • Patients unable to express voluntary consent
Show all 9Show fewer
  • Patients receiving post operative anticoagulants or platelet antiaggregants
  • Patients requiring postoperative anticoagulants
  • Bilateral mastectomy

Trial locations and contacts

3 sites in 1 country.

France3 sites
  • CHU Amiens

    Amiens, 80054

  • CH Compiègne

    Compiègne, 60321

  • CH Soissons

    Soissons, 02209

Other trials in France

About this study

Official title: PREvention of Post-mastectomy LYMphoceles by PAdding. A Randomized Prospective Multicenter Study

Lymphoceles, or seromas, are the most frequent complication following mastectomy and are associated or not with axillary dissection occurring in 10 to 90% of cases. It is defined as the presence of a palpable post operative serous accumulation that is bothersome for the patient and requires a puncture and drainage or even several repeated punctures. The presence of seromas is therefore associated with discomfort and pain. Seromas could also be responsible for increased morbidity due to complications such as infection, suture separating, lymphedema, prolonged of hospital stay, or a delay in initiation of adjunct treatment (e.g. chemotherapy, radiotherapy). Some risk factors have been identified, such as obesity, increased post operative drainage of J1 to J3, and arterial hypertension.

Different measures have demonstrated the benefits of limiting axillary lymphoceles after dissection : placement of a drain, padding and delay in shoulder mobility.

Read more

Studies have shown that axillary padding decreases lymphocele development and shortens the length of hospital stay. Some studies based on padding of the mastectomy site also have shown a decrease in post operative seromas; however no study has been done on the usefulness of padding in the mastectomy site alone because they include both padding and a drain or padding of the axillary area.

The padding technique the investigators employ is performed at the donor site in breast reconstruction by latissimus dorsi muscle flap, demonstrating a reduction in the rate of seromas.

In this study, the classic technique will be compared to padding in the mastectomy site with short drainage (48h).

Conditions
Mastectomy
Being tested
classic closure, padding
Keywords
padding, lymphoceles, prevention
Medical subject headings
Lymphocele

What participants receive

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

  • classic closureProcedure or surgery

    mastectomy with classic closure in 2 steps, drainage by negative pressure aspiration

  • paddingProcedure or surgery

    areas of padding and running sutures between subcutaneous tissue and pectoral muscle followed by closure in 2 steps, drainage by negative pressure aspiration for 48 h

Study groups in NCT02894021
Study groupRoleWhat they receive
classic closureActive comparatormastectomy with classic closure in 2 steps, drainage by negative pressure aspiration
Receives: Procedure: classic closure
paddingExperimentalareas of padding and stiching between subcutaneous tissue and pectoral muscle followed by closure in 2 steps, drainage by negative pressure aspiration for 48 h.
Receives: Procedure: padding

What is being measured

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

  1. postoperative lymphoceles

    presence or absence of postoperative lymphoceles

    Measured: Day 15

Timeline

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

  1. First posted9 Sep 2016 (estimated)
  2. Study start17 Sep 2013
  3. Primary completion19 Aug 2022
  4. Study completion19 Aug 2022

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02894021
Sponsor's protocol ID
PI2013_843_0001
Acronym
PRELYMCA
Status last verified
Jun 2026
First submitted
5 Sep 2016
Last updated
15 Jun 2026
Results posted
No

Questions about this trial

What is this clinical trial studying?

A study testing classic closure and padding in people with Mastectomy, run by Centre Hospitalier Universitaire, Amiens at 3 sites in France.

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 7 inclusion and 9 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: finished, as of the sponsor's last update on 15 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in France. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

postoperative lymphoceles (time frame: Day 15). 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 15 Jun 2026.

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