NCT04756791

Brief Summary

To evaluate whether a serratus anterior plane block (SAPB) is more effective than a local infiltration anesthesia (LIA) with an equal dose and same anesthetic performed by the surgeon, as an adjuvant to treat postoperative pain after unilateral mastectomy.

Trial Health

30
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Jun 2021

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
withdrawn

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 11, 2021

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 16, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

June 16, 2021

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2023

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

December 18, 2025

Status Verified

May 1, 2023

Enrollment Period

2.5 years

First QC Date

February 11, 2021

Last Update Submit

December 11, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • The use of opioids in the postoperative period

    Patients receive a patient controlled intravenous anesthesia pump with morphine. We will be able to analyze the total amount of opioid requested by the patient.

    24 hours

Secondary Outcomes (2)

  • Numerical Pain Rating Scale

    24 hours

  • Degree of arm mobilization

    24 hours

Study Arms (2)

Local infiltration anesthesia

ACTIVE COMPARATOR

Patients will receive local infiltration anesthesia with ropivacaine placed by surgeon.

Procedure: Local Injection Anesthesia

Serratus anterior plane block

EXPERIMENTAL

Patients receive a SAPB with ropivacaine placed by anesthesiologist.

Procedure: SAPB

Interventions

SAPBPROCEDURE

local anesthetic is injected between the serratus anterior and latissimus dorsi muscles.

Serratus anterior plane block

Anesthesia is injected directly into the tissue that is will be numbing.

Local infiltration anesthesia

Eligibility Criteria

Age18 Years - 80 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18-80 years.
  • Provision of signed informed consent prior to any study-specific procedure.
  • Patients who come to preoperative anesthesia consultation for their scheduled unilat-eral mastectomy.

You may not qualify if:

  • Age \>80 years
  • History of chronic pain or drug treatment abuse
  • Depression, psychiatric morbidity or mal-adaptive coping behavior
  • Neuropathy
  • Severe anxiety or other mental ailment, taking drugs affecting their capacity to assess pain
  • Chronic or acute skin infection of the lateral thorax
  • Hypersensitivity to ropivacaine
  • Severe hepatic or renal disease
  • Refuse to participate to the study
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UZ Brussel

Jette, Brussels Capital, 1090, Belgium

Location

MeSH Terms

Conditions

Lymphedema

Condition Hierarchy (Ancestors)

Lymphatic DiseasesHemic and Lymphatic Diseases
0

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 11, 2021

First Posted

February 16, 2021

Study Start

June 16, 2021

Primary Completion

December 31, 2023

Study Completion

December 31, 2024

Last Updated

December 18, 2025

Record last verified: 2023-05

Locations