Seroma Formation After Modified Radical Mastectomy With Flap Fixation Technique in Breast Cancer Patients

June 22, 2025 updated by: Nakhon Phanom Hospital

Seroma Formation After Modified Radical Mastectomy With Flap Fixation Technique in Breast Cancer Patients: Nakhon Phanom Hospital - a Single Blinded Randomized Control Trial

The goal of this clinical trial is to evaluate the effectiveness of mastectomy flap fixation in breast cancer patients. The main questions it aims to answer are:

- To compare seroma formation after mastectomy flap fixation with conventional surgery in breast cancer patients Participants will be randomly divided into 2 groups,

  1. Mastectomy flap fixation
  2. Conventional surgery with non flap fixation. Researchers will record the amount and color of drainage fluid, patient and tumor characteristics, and operative related factor after surgery.

Researchers will compare with conventional surgery to see if seroma formation, and wound infection.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Seroma is collection of blood plasma or lymphatic fluid under skin flap or axillary dead space. It occurred after modified radical mastectomy. Patient will have subcutaneous swelling or edema which be confirmed by physical examination or bedside ultrasound. It categorized by common terminology criteria for adverse events version 5.0 for 3 grades.

  1. asymptomatic
  2. symptomatic with medical intervention or simple aspiration
  3. symptomatic with required interventional radiology or operative intervention.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
70

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Thailand
      • Nakhon Phanom, Thailand, 48000
        • Nakhon Phanom Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Breast cancer (CA Breast) patients plan to modified radical mastectomy
  • Operable case, or Resectable case

Exclusion Criteria:

  • Having medical bleeding tendency e.g., Idiopathic Thrombocytopenia (ITP), leukemia, other bleeding disorder
  • Immunocompromised e.g., HIV, Systemic Lupus Erythematosus (SLE), liver cirrhosis, immunosuppressive drug
  • Other modified radical mastectomy whom required reconstruction, flap coverage e.g., Transverse Rectus Abdominis Musculocutaneous (TRAM) flap, Latissimus Dorsi (LD) flap
  • Past history of mammoplasty, augmentation
  • Past history of axillary lymphatic system operation
  • Pregnant women

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Flap fixation
After completing the modified radical mastectomy procedure, the researcher will use absorbable suture (vicryl), multiple alternating stitches 2.5 cm apart between the subcutaneous tissues of the skin flaps and the underlying muscles at various parts of the flap and also, at the wound edge.
Procedure: Flap fixation technique
After complete the modified radical mastectomy procedure, the researcher will use absorbable sutures (vicryl), multiple alternating stitched 2.5 cm apart between the subcutaneous of the flap and underlying muscle
No Intervention: Non flap fixation
After mastectomy, the researcher will close the wound in the conventional method.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Seroma Formation
Time Frame: Every day for 7 days post operative period and after discharge 7, 15, 21, 42, 63, 84 days during follow up period.
Every day for 7 days post operative period, fluid from drains was recorded (ml) daily. After discharge during follow up period, seroma formation was observed if seroma was observed, aspiration was performed and recorded.
Every day for 7 days post operative period and after discharge 7, 15, 21, 42, 63, 84 days during follow up period.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Complication After Surgery 1. Wound Infection 2. Joint Stiffness 3. Visit Before the Appointment Date
Time Frame: Data were assessed 7 days after operation, after discharge 7 days, 15 days, 21 days, 42 days, 63 days, 84 days. Data from any time point were combined by counted and sum number of specific outcome of interest.
  1. wound infection; any clinical signs and symptoms of wound infection, redness , swelling, wound dehiscence, of Fever > 38 C.
  2. Joint stiffness; limitation of range of movement of Shoulder same side of mastectomy.
  3. Visit before the appointment date; any visit relevant surgical conditions before appointment.
Data were assessed 7 days after operation, after discharge 7 days, 15 days, 21 days, 42 days, 63 days, 84 days. Data from any time point were combined by counted and sum number of specific outcome of interest.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Nakhon Phanom Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Natawan Hunpayon, MD, Nakhon Phanom Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2023

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 1, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 29, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 29, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 6, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 11, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 22, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 39/2566

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

De-identify data

IPD Sharing Time Frame

1 year after publication for a period of 2 years

IPD Sharing Access Criteria

Access to trial Individual Patient Data (IPD) can be requested by qualified researchers engaging in independent scientific research, and will be provided following review and approval of research proposal and statistical analysis plan (SAP) and execution of Data Sharing Agreement (DSA). For more information or to submit a request, please contact e-mail: sutthichain@gmail.com.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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