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CompletedNCT03074240TAPBUpdated May 30, 2024

Abdominal Wall Block Study

An interventional study of TAPB Group and RSB Group in Umbilical Hernia and Obesity, sponsored by University of Florida. Completed at 1 site in United States. Open to participants aged 18 Years to 99 Years. Per ClinicalTrials.gov, last updated 2024-05-30.

Sponsored by University of Florida · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
15
Allocation
Randomized
Ages
18 Years to 99 Years
Sex
All
01

Study summary

Compare the ability of the transversus abdominis plane block (TAPB) and rectus sheath block (RSB) to provide surgical anesthesia for overweight and obese patients undergoing umbilical hernia surgery.

Read the detailed description

The purpose of this research study is to compare the ability of the TAPB and RSB to provide anesthesia for overweight and obese patients undergoing abdominal wall surgery. At the present time, this procedure is performed under general anesthesia, which often poses increased risks for overweight and obese individuals. It is not known if these blocks could be used to avoid the use of general anesthesia.

02

Conditions studied

  • Umbilical Hernia
  • Obesity

Keywords

  • Truncal block
  • Surgical anesthesia
  • Postoperative pain control
03

In context

Hernia, Umbilical

67 studies on the registry are indexed under Hernia, Umbilical; 13 are open to participants now.

This study's enrollment of 15 is below the median of 66 across 40 interventional studies indexed under Hernia, Umbilical.

Browse Hernia, Umbilical studies →

Lead sponsor

University of Florida is the lead sponsor of 1,287 studies on the registry; 199 are open to participants now.

Of its 180 completed or terminated interventional studies of FDA-regulated products, 143 (79%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 99 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients ≥ 18 years of age undergoing umbilical hernia repair
  • Overweight and obese individuals (defined as a of ≥ 25 and 30 kg/m2, respectively)
  • Ability to understand and provide

Exclusion criteria

Exclusion Criteria:

  • Patient refusal or inability to provide
  • True allergy, not sensitivity, local anesthetics
  • True allergy, not sensitivity, Propofol
  • True allergy, not sensitivity, general anesthetic agents
  • Pregnancy
  • Severe hepatic impairment
  • Evidence of infection at or near the proposed needle insertion site
  • Any sensorimotor deficit, whether acute or chronic, as determined by the PI
  • Chronic use of opioid medication
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
15 participants (actual)

Study arms

  • Active comparator
    TAPB Group

    Compare the instance in the TAPB group of intraoperative local anesthetic supplementation, analgesic administration, or conversion to general anesthesia when undergoing TAPB to anesthetize the abdominal wall.

    Procedure: TAPB Group · Procedure: conversion to general anesthesia

  • Active comparator
    RSB Group

    Compare the instance in the RSB group of intraoperative local anesthetic supplementation, analgesic administration, or conversion to general anesthesia when undergoing RSB to anesthetize the abdominal wall.

    Procedure: RSB Group · Procedure: conversion to general anesthesia

Interventions

  • ProcedureTAPB Group

    Subjects allocated to the TAPB group will be monitored for instances of intraoperative local anesthetic supplementation, analgesic administration, or conversion to general anesthesia will be compared.

    Also known as: truncal peripheral nerve blocks, anesthetize the abdominal wall, ultrasound-guided regional anesthesia, Transversus abdominis plane blocks

  • ProcedureRSB Group

    Subjects allocated to the RSB group will be monitored for instances of intraoperative local anesthetic supplementation, analgesic administration, or conversion to general anesthesia will be compared.

    Also known as: truncal peripheral nerve blocks, anesthetize the abdominal wall, ultrasound-guided regional anesthesia, rectus sheath blocks

  • Procedureconversion to general anesthesia

    For those who do not respond to TAPB or RSB to allow for completion of the intended procedure.

    Also known as: general anesthetic

06

What researchers measure

Primary outcomes

  1. Changes between the two groups to provide surgical anesthesia

    Assessed by the ability of the TAPB and RSB to provide primary surgical anesthesia

    Time frame: Changes from baseline (pre-op) to 1 hour post-operative

Secondary outcomes

  1. Changes between the two groups assessed by post-operative pain control

    Assessed by instances of numerical rating scale pain scores (0-10)

    Time frame: Changes from baseline (post-operative) to 48 hours post-operative

07

Study locations

1 site
  • Malcom Randall VA Medical Center
    Gainesville, Florida 32608, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Aug 2017 to primary completion in Jul 2021, 47 months.

Of 19 interventional studies with no phase under Hernia, Umbilical, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 47. This study's 47 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 3, 2017
First posted
Mar 8, 2017
StartActual
Aug 7, 2017
Primary completionActual
Jul 12, 2021
CompletionActual
Jul 12, 2021
Last update
May 30, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 30, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03074240
Responsible party
Sponsor
First posted
Mar 8, 2017
Start date
Aug 7, 2017
Primary completion
Jul 12, 2021
Completion
Jul 12, 2021
Last update
May 30, 2024

Study contacts

José R Soberón, MD
principal investigator · Malcom Randall VA Medical Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2024. You cannot join it, but the record below documents what was studied.

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