NCT04889469

Brief Summary

The overall purpose of the project is to create a scientific basis for which patients should be offered breast reduction in the public sector. More specifically , the project aims to:

  • To examine the evidence for current national guidelines for breast reduction. The hypothesis is that BMI, breast volume, resection weight, and mental and physical symptoms affect the outcome of breast reconstruction, both in terms of complication risks, patient satisfaction and quality of life .
  • To investigate which patients benefit the most from a breast reduction, in a health economic perspective. The starting point is that resources are limited and the purpose is to maximize the health effects for the patient at as low cost as possible. The hypothesis is that the health benefits, for the individual and society, are different depending on how big the breasts are and how much symptoms a patient has preoperatively.
  • To examine back function and objective problems in women, with both natural and augmented breasts, with different body constitutions and volumes. The hypothesis is that a certain breast volume give rise to different physical symptoms in different women, depending on their other physical factors.
  • To develop preferences for benign breast conditions that are treated in plastic surgery and for complications that the treatment can cause. Preferences are used to calculate QALY (quality-adjusted life years). Knowledge of preferences is essential for an analysis of healthcare needs.
  • To examine women's experiences of how their breast hypertrophy affects them and their expectations of a breast reduction. The hypothesis is that the experience breast hypertrophy affects patients differently, and that expectations on a breast reduction can vary between different individuals.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,000

participants targeted

Target at P75+ for all trials

Timeline
64mo left

Started Aug 2021

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress48%
Aug 2021Aug 2031

First Submitted

Initial submission to the registry

April 24, 2021

Completed
23 days until next milestone

First Posted

Study publicly available on registry

May 17, 2021

Completed
3 months until next milestone

Study Start

First participant enrolled

August 1, 2021

Completed
7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2028

Expected
3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2031

Last Updated

July 3, 2025

Status Verified

June 1, 2025

Enrollment Period

7 years

First QC Date

April 24, 2021

Last Update Submit

June 30, 2025

Conditions

Keywords

breast reductionreduction mammaplastybreast hypertrophy

Outcome Measures

Primary Outcomes (6)

  • Patient reported quality of life

    Breast -Q breast reduction preoperatively and postoperatively measures quality of life and patient satisfaction in 6 domains: physical well-being, psychosocial well-being, sexual well-being, satisfaction with the breasts, satisfaction with the result and satisfaction with care. Each domain is scored 0-100, where a higher score indicate a better outcome.

    5 years

  • Complications

    Complications after surgery classified according to Clavien-Dindo

    1 year

  • Preferences (utility)

    utility scores for various benign breast conditions that may require plastic surgery , including complications after cosmetic surgery, will be measured. Complications will be compared with situations without these , but also with congenital conditions that give a similar appearance. Measured with a visual analogue scale from 1-100.

    5 years

  • Range of motion

    Measured with goniometer in degrees

    1 year

  • Muscle strength

    Biering-Sörensen test measuring how many seconds the subject is able to keep the unsupported upper body horizontal, while placed prone with the buttocks and legs fixed to the couch by three wide canvas straps and the arms folded across the chest

    1 year

  • Cost-effectiveness

    Analysis of costs related to quality-adjusted life years, comparing operation with no operation.

    1 year

Secondary Outcomes (9)

  • Patient reported health

    5 years

  • Patient reported health

    5 years

  • Body image

    5 years

  • Body investment

    5 years

  • Pain intensity and quality

    5 years

  • +4 more secondary outcomes

Study Arms (4)

Breast hypertrophy operated

Women who have had a breast reduction in the public health care system

Procedure: Breast reduction

Breast hypertrophy controls

Women with symptoms of breast hypertrophy, who do not fulfill the requirements to have a breast reduction in the public health care system

Augmented controls

Patients who have breast hypertrophy due to cosmetic breast augmentation

The general public

Random sample of the general public

Interventions

Procedure to remove excess fat, tissue and skin from the breasts.

Breast hypertrophy operated

Eligibility Criteria

Age18 Years - 75 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Normal weight women with breast volumes over \>800 ml (augmented or natural) with or without symptoms of breast hypertrophy. Normal weight women with a breast volume under 800 ml with symptoms of breast hypertrophy.

You may qualify if:

  • Breast volume \> 800 ml
  • BMI\< 25 if under 50 years of age and BMI\<2 if over the age of 50
  • Symptoms of breast hypertrophy
  • Non-smokers
  • Un-operad controls:
  • Symptoms of breast hypertrophy, but do not comply with the criteria above.
  • Augmented controls:
  • Augmented breast volume \> 800 ml
  • BMI\< 25 if under 50 years of age and BMI\<2 if over the age of 50

You may not qualify if:

  • Inability to provide informed consent
  • Inability to understand the Swedish language
  • Age under 18 years

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sahlgrenska university hospital

Gothenburg, 413 45, Sweden

RECRUITING

Related Publications (1)

  • Widmark-Jensen E, Bernhardsson S, Eriksson M, Hallberg H, Jepsen C, Jivegard L, Liljegren A, Petzold M, Svensson M, Warnberg F, Hansson E. A systematic review and meta-analysis of risks and benefits with breast reduction in the public healthcare system: priorities for further research. BMC Surg. 2021 Sep 11;21(1):343. doi: 10.1186/s12893-021-01336-7.

Related Links

MeSH Terms

Conditions

Gigantomastia

Study Officials

  • Emma Hansson, PhD

    Göteborg University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Emma Hansson, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Target Duration
5 Years
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 24, 2021

First Posted

May 17, 2021

Study Start

August 1, 2021

Primary Completion (Estimated)

August 1, 2028

Study Completion (Estimated)

August 1, 2031

Last Updated

July 3, 2025

Record last verified: 2025-06

Data Sharing

IPD Sharing
Will not share

Locations