ClinicalTrials.gg
Status unknownNCT05391763PROFASUpdated Jan 11, 2023

Bilateral Prophylactic Mastectomy; Should we Preserve the Pectoral Fascia?

An interventional study of Fascia pectoralis preservation in BRCA1/2 Mutation, Bilateral Prophylactic Mastectomy and Seroma, sponsored by Erasmus Medical Center. Status unknown at 1 site in Netherlands. Open to female participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2023-01-11.

Sponsored by Erasmus Medical Center · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Jan 2023), so the status shown — last known as Recruiting — may be out of date.

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Jan 2022, registered May 2022).
Phase
Not applicable
Study type
Interventional
Enrollment
21
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
Female
01

Study summary

Many surgical guidelines promote the removal of the pectoral fascia in mastectomies for invasive breast cancer, but there is no evidence to support this statement in (bilateral) prophylactic mastectomies. Reported wound-related local complications following mastectomy include seroma, flap necrosis, infection, hematoma, and nerve injury. Seroma causes discomfort and may delay the reconstructive procedures. Whether the removal or preservation of the pectoral fascia influences seroma formation following mastectomy remains unclear to our knowledge.

Read the detailed description

The primary objective of this pilot study is to investigate the impact of removal versus preservation of the pectoral fascia on drain policy and needle aspirations in women who undergo a bilateral prophylactic mastectomy. The secondary objective is to investigate the impact of removal versus preservation of the pectoral fascia on postoperative (surgical) complications.

The study design includes a double-blinded, prospective, randomized controlled pilot study with a within-subject design. All patients will undergo a bilateral prophylactic mastectomy and randomization will occur within the patient. Preservation of the PF will be performed in one breast (intervention), while removal of the PF will be performed in the contralateral breast of the same patient (control). Consequently, the operation involves a total bilateral prophylactic mastectomy, with unilateral preservation of the PF

The follow-up time of each patient will be 6 weeks. The patients' files will be viewed after the removal of the drain for additional recorded variables.

02

Conditions studied

  • BRCA1/2 Mutation
  • Bilateral Prophylactic Mastectomy
  • Seroma
  • Pectoral Fascia

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03

In context

Seroma

101 studies on the registry are indexed under Seroma; 22 are open to participants now.

This study's planned enrollment of 21 is below the median of 100 across 92 interventional studies indexed under Seroma.

Browse Seroma studies →

Lead sponsor

Erasmus Medical Center is the lead sponsor of 478 studies on the registry; 183 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female patient
  • Scheduled for a bilateral prophylactic mastectomy in the Erasmus MC Academic Breast Cancer Centre in Rotterdam
  • Ability to give written consent
  • Adequate understanding of Dutch language

Exclusion criteria

Exclusion Criteria:

  • History of diagnosis of invasive breast cancer or ductal carcinoma in situ (DCIS)
  • Other
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
21 participants (estimated)

Study arms

  • Other
    Right: removal of fascia pectoralis, left: preservation of fascia pectoralis

    Procedure: Fascia pectoralis preservation

  • Other
    Left: removal of fascia pectoralis, right: preservation of fascia pectoralis

    Procedure: Fascia pectoralis preservation

Interventions

  • ProcedureFascia pectoralis preservation

    A total mastectomy will be performed in the control breast: a procedure which includes removal of the breast glandular tissue including the PF and subcutaneously excision of the nipple-areolar complex, while the pectoralis muscle will be spared. As much of the healthy skin envelope will be preserved to enable the performance of an effective breast reconstruction afterwards. When a nipple-sparing mastectomy is performed, the skin envelope together with the nipple-areolar complex will be spared. The investigational part of the operation is preservation of the PF. Dissection of cutaneous flaps and the breast with or without the PF will be performed with electrocautery.

06

What researchers measure

Primary outcomes

  1. Drainproduction in milliliters

    The total drainage volume of the left and right breast in milliliters

    Time frame: Until drain removal, maximum 1 week

  2. Time to drain removal in days

    Number of days until drain removed

    Time frame: Until drain removal, maximum 1 week

Secondary outcomes

  1. Seroma (yes/no)

    Occurrence of seroma

    Time frame: Up to 6 weeks

  2. Needle aspirations (number)

    Number of needle aspirations

    Time frame: Up to 6 weeks

  3. Postoperative pain (score 1-10)

    Postoperative pain measured with Visual Analogue Scale

    Time frame: Up to 6 weeks

  4. Postoperative bleeding (yes/no)

    Occurrence of postoperative bleeding

    Time frame: Up to 6 weeks

  5. Wound related issues (yes/no)

    Wound related issues such as hematoma or infection

    Time frame: Up to 6 weeks

  6. Hospitalization duration (in days)

    Duration of hospitalization, including readmissions

    Time frame: Up to 6 weeks

07

Study locations

1 of 1 sites recruiting
  • Erasmus Medical Center
    Rotterdam, Netherlands
    Recruiting
    • Linetta Koppert, MD, PhD, MHS · Contactl.koppert@erasmusmc.nl · +31107040151
    • Linetta Koppert, MD, PhD, MHS · Principal investigator
    • Dalibor Vasilic, MD, PhD · Sub investigator
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2022 (actual). Primary completion is estimated for Dec 2023, 23 months after the start.

Of 43 non-industry interventional studies with no phase under Seroma, half reached primary completion within 34 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 65. This study's planned 23 months is below that.

Counting every sponsor, half of 44 studies reached it within 34 months; a quarter within 17 and three quarters within 65.

How these figures are worked out, and which studies are left out of them.

Registered
May 17, 2022
First posted
May 26, 2022
StartActual
Jan 1, 2022
Primary completionEst.
Dec 1, 2023
CompletionEst.
Dec 1, 2023
Last update
Jan 11, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 11, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05391763
Responsible party
Linetta Koppert (Principal Investigator, Erasmus Medical Center) — Principal investigator
First posted
May 26, 2022
Start date
Jan 1, 2022
Primary completion
Dec 1, 2023 (estimated)
Completion
Dec 1, 2023 (estimated)
Last update
Jan 11, 2023

Study contacts

Marloes Clarijs, MD
Contact
m.clarijs@erasmusmc.nl
+31 6 22035529

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jan 2023. You cannot join it, but the record below documents what was studied.

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