Treatment of Postmastectomy Pain Syndrome With Fat Grafting

NCT ID: NCT03081286

Last Updated: 2020-09-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-08-01

Study Completion Date

2020-07-31

Brief Summary

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This study evaluates the possible beneficial effect of fat grafting for post mastectomy pain syndrome. Half of patients will receive fat grafting and the other half of patients will receive sham.

Detailed Description

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Several studies have suggested that fat grafting can alleviate pain in post mastectomy pain syndrome. These studies however have either been in the form of case series or unblinded studies with great risk of bias.

It is believed that fat grafting with its content of adipose-derived stem cells can modulate the scar tissue upon grafting and hereby decrease pain.

In this study patients will be randomized to either fat grafting or a sham procedure where they undergo the same liposuction but no fat grafting, only injection of saline instead of fat.

Conditions

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Post-Mastectomy Chronic Pain Syndrome (Disorder)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors
During general anesthesia, patients are randomized to either fat grafting or sham grafting with only saline. All patients undergo the same liposuction. Participants are blinded, care providers postoperatively are blinded. The surgeon performing the procedure is not blinded. The outcome assessors 3 and 6 months postoperatively are blinded.

Study Groups

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Fat grafting

Following liposuction the fat is decanted and used for fat grafting to the area of pain after breast cancer surgery.

Group Type EXPERIMENTAL

Liposuction

Intervention Type PROCEDURE

Liposuction is performed on the abdomen or thighs as determined before randomization by the surgeon.

Fat graft

Intervention Type PROCEDURE

The harvested lipoaspirate is injected at the site of pain.

Sham grafting

Following liposuction the fat is discarded. Instead approximately 50mL of saline is used instead of fat and injected into the area of pain after breast cancer surgery.

Group Type SHAM_COMPARATOR

Liposuction

Intervention Type PROCEDURE

Liposuction is performed on the abdomen or thighs as determined before randomization by the surgeon.

Sham graft (saline injection)

Intervention Type PROCEDURE

Saline will be injected at the site of pain instead of fat

Interventions

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Liposuction

Liposuction is performed on the abdomen or thighs as determined before randomization by the surgeon.

Intervention Type PROCEDURE

Fat graft

The harvested lipoaspirate is injected at the site of pain.

Intervention Type PROCEDURE

Sham graft (saline injection)

Saline will be injected at the site of pain instead of fat

Intervention Type PROCEDURE

Other Intervention Names

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lipotransfer

Eligibility Criteria

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Inclusion Criteria

* Treated for breast cancer
* Pain in the breast cancer treated area on the breast or axilla.
* Pain present at least 4 days a week with an intensity above 3 on VAS.
* Duration longer than 3 months
* Recurrence free for minimum 6 months
* Understand the nature of the study and can give informed consent

Exclusion Criteria

* Psychiatric condition that can affect participation.
* Recurrence of breast cancer at any time.
* Other indication for fat grafting other than pain treatment.
* Breast reconstruction with flap
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Odense University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Martin Sollie

Doctor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Jens A Sørensen, MD PhD

Role: STUDY_CHAIR

Odense University Hospital

Locations

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Odense University Hospital

Odense, , Denmark

Site Status

Countries

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Denmark

Other Identifiers

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S-20160185

Identifier Type: -

Identifier Source: org_study_id

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