NCT04787367

Brief Summary

The goal of this study is to investigate whether an early intraoperative transverse abdominis plane block (TAP block) will provide superior analgesia to a late intraoperative TAP block. A fixed amount of bupivacaine will be used for the TAP block and the primary outcomes will be measured by patient reported numerical assessment scores for pain.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
200

participants targeted

Target at P75+ for not_applicable obesity

Timeline
Completed

Started Feb 2019

Typical duration for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
completed

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

May 8, 2018

Completed
9 months until next milestone

Study Start

First participant enrolled

February 12, 2019

Completed
2.1 years until next milestone

First Posted

Study publicly available on registry

March 8, 2021

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2022

Completed
Last Updated

August 3, 2022

Status Verified

August 1, 2022

Enrollment Period

3.4 years

First QC Date

May 8, 2018

Last Update Submit

August 1, 2022

Conditions

Keywords

TAP blockObesitySleeve gastrectomyBariatricsPost-operative pain

Outcome Measures

Primary Outcomes (7)

  • Patient reported pain

    Using the numerical assessment system, the patient will report their pain by choosing a number 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. On the scale, 0 means no pain (best outcome) and 10 means the most pain (worst outcome). The patients will identify where on the spectrum their pain lays prior to receiving any possible pain medication.The pain scores will be averaged within the two groups at each time interval collected.

    Immediately post-operatively (upon arrival to PACU). These pain scales will be done by nurses/nursing aids taking vitals.

  • Patient reported pain

    Using the numerical assessment system, the patient will report their pain by choosing a number 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. On the scale, 0 means no pain (best outcome) and 10 means the most pain (worst outcome). The patients will identify where on the spectrum their pain lays prior to receiving any possible pain medication.The pain scores will be averaged within the two groups at each time interval collected.

    4 hours post-operatively. These pain scales will be done by nurses/nursing aids taking vitals.

  • Patient reported pain

    Using the numerical assessment system, the patient will report their pain by choosing a number 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. On the scale, 0 means no pain (best outcome) and 10 means the most pain (worst outcome). The patients will identify where on the spectrum their pain lays prior to receiving any possible pain medication.The pain scores will be averaged within the two groups at each time interval collected.

    8 hours post-operatively. These pain scales will be done by nurses/nursing aids taking vitals.

  • Patient reported pain

    Using the numerical assessment system, the patient will report their pain by choosing a number 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. On the scale, 0 means no pain (best outcome) and 10 means the most pain (worst outcome). The patients will identify where on the spectrum their pain lays prior to receiving any possible pain medication.The pain scores will be averaged within the two groups at each time interval collected.

    12 hours post-operatively. These pain scales will be done by nurses/nursing aids taking vitals.

  • Patient reported pain

    Using the numerical assessment system, the patient will report their pain by choosing a number 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. On the scale, 0 means no pain (best outcome) and 10 means the most pain (worst outcome). The patients will identify where on the spectrum their pain lays prior to receiving any possible pain medication.The pain scores will be averaged within the two groups at each time interval collected.

    16 hours post-operatively. These pain scales will be done by nurses/nursing aids taking vitals.

  • Patient reported pain

    Using the numerical assessment system, the patient will report their pain by choosing a number 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. On the scale, 0 means no pain (best outcome) and 10 means the most pain (worst outcome). The patients will identify where on the spectrum their pain lays prior to receiving any possible pain medication.The pain scores will be averaged within the two groups at each time interval collected.

    20 hours post-operatively. These pain scales will be done by nurses/nursing aids taking vitals.

  • Patient reported pain

    Using the numerical assessment system, the patient will report their pain by choosing a number 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. On the scale, 0 means no pain (best outcome) and 10 means the most pain (worst outcome). The patients will identify where on the spectrum their pain lays prior to receiving any possible pain medication.The pain scores will be averaged within the two groups at each time interval collected.

    24 hours post-operatively. These pain scales will be done by nurses/nursing aids taking vitals.

Secondary Outcomes (2)

  • Length of stay

    Day of surgery to day of discharge up to 30 days

  • Narcotic use

    Starting with administration of opioid medication in PACU until time of discharge up to 30 days

Study Arms (2)

Early-operative TAP block

EXPERIMENTAL

The TAP block will be administered after the placement of the camera port.

Procedure: TAP block

Late-operative TAP block

EXPERIMENTAL

The TAP block will be administered at the completion of the case just before removing the camera port.

Procedure: TAP block

Interventions

TAP blockPROCEDURE

An 18-gauge needle will be introduced externally at the center of the mid axillary line between the lower costal margin and the iliac crest until the surgeon feels a "pop," after which the surgeon will inject the first 2 mL of 0.25% bupivicaine to verify the correct position. Doyle's internal bulge sign (the bulge seen when the transversus abdominis muscle and peritoneum is pushed internally) will be visualized and the remainder of the 60 mL of 0.25% bupivacaine will be injected. The contralateral block will be performed according to the same technique but with only 30 ml of bupivicaine.

Early-operative TAP blockLate-operative TAP block

Eligibility Criteria

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

You may qualify if:

  • Undergoing laparoscopic sleeve gastrectomy

You may not qualify if:

  • Conversion to open procedure
  • Prior history of narcotic use (which will be defined as any narcotics used on a recreational basis or any narcotic used for pain relief without having had recent operation or injury)
  • Current narcotic use at time of surgery
  • Prolonged case time defined as \>1 standard deviation over average time

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Henry Ford Macomb Hospital

Clinton Township, Michigan, 48038, United States

Location

MeSH Terms

Conditions

ObesityPain, Postoperative

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsPostoperative ComplicationsPathologic ProcessesPainNeurologic Manifestations

Study Officials

  • Arthur Carlin, MD

    Henry Ford Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
The patient will be unaware of when they received the block. The nursing assistants checking the pain score will also be unaware of the timing of the block.
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: This is a single blinded, prospective study designed to determine optimal timing of TAP block in laparoscopic gastric sleeve patients. Patients will randomly be assigned to the early intra-operative TAP block group or the late intra-operative TAP block group.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Sub-Investigator

Study Record Dates

First Submitted

May 8, 2018

First Posted

March 8, 2021

Study Start

February 12, 2019

Primary Completion

July 1, 2022

Study Completion

July 1, 2022

Last Updated

August 3, 2022

Record last verified: 2022-08

Data Sharing

IPD Sharing
Will not share

Locations