NCT04426500

Brief Summary

The study team aims to prospectively compare Placebo (local administration), ultrasound-guided transversus abdominis plane (UTAP) blocks, and laparoscopic-guided transversus abdominis plane (LTAP) blocks in patients undergoing robotic surgery of the prostate and kidney. The study team expects to be able to equally efficiently administer the blocks using direct visualization and ultrasound guidance. The study team expects that a negative result would obviate the need for longer operative time by eliminating the need for the separate ultrasound guided block while a positive result would demonstrate the increased utility of preoperative ultrasound blocks in managing postoperative pain.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
148

participants targeted

Target at P25-P50 for phase_3

Timeline
Completed

Started Nov 2019

Shorter than P25 for phase_3

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 11, 2019

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

June 8, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 11, 2020

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 13, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 13, 2021

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

May 6, 2022

Completed
Last Updated

March 12, 2024

Status Verified

February 1, 2024

Enrollment Period

1.3 years

First QC Date

June 8, 2020

Results QC Date

April 7, 2022

Last Update Submit

February 15, 2024

Conditions

Keywords

Phase IIIRandomizedSingle blindSingle CenterThree armNon-inferiority

Outcome Measures

Primary Outcomes (1)

  • Visual Analog Scale (VAS)

    Visual analog scale (VAS) is a pain rating scale, with full scale from 0 to 10, higher score indicating more pain

    24 hours post operatively

Secondary Outcomes (10)

  • Intraoperative Time and Block Time

    up to 420 minutes

  • Intraoperative Narcotic Use

    up to 420 minutes

  • Intraoperative Ketoralac Use

    up to 420 minutes

  • Postoperative Narcotic Use

    24 hours post operatively

  • Total Analgesic Medications

    24 hours post operatively

  • +5 more secondary outcomes

Study Arms (3)

Placebo/Local Anesthesia

PLACEBO COMPARATOR

Direct injection of 0.25% bupivacaine into surgical wounds

Drug: Bupivacain

Ultrasound-guided transversus abdominus plane (UTAP) block

ACTIVE COMPARATOR

30mL of 0.25% bupivacaine will be administered to bilateral TAP using ultrasound guidance in prostatectomies. 40ml 0.25% bupivacaine unilateral will be administered in nephrectomy patients (weight based dosage permitting).

Drug: BupivacainDrug: Ultrasound-guided transversus abdominus plane block

Laparoscopic-guided transversus abdominus plane (LTAP) block

EXPERIMENTAL

30mL of 0.25% bupivacaine will be administered to bilateral TAP using laparoscopic guidance in prostatectomies. 40ml 0.25% bupivacaine unilateral will be administered in nephrectomy patients (weight based dosage permitting).

Drug: BupivacainDrug: Laparoscopic-guided transversus abdominus plane block

Interventions

Direct injection of 0.25% bupivacaine into surgical wounds

Also known as: Local anesthesia
Laparoscopic-guided transversus abdominus plane (LTAP) blockPlacebo/Local AnesthesiaUltrasound-guided transversus abdominus plane (UTAP) block

bilateral TAP using ultrasound guidance in prostatectomies

Also known as: UTAP
Ultrasound-guided transversus abdominus plane (UTAP) block

bilateral TAP using laparoscopic guidance in prostatectomies

Also known as: LTAP
Laparoscopic-guided transversus abdominus plane (LTAP) block

Eligibility Criteria

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

You may qualify if:

  • Age 18 years or older
  • Undergoing Robotic Assisted Laparoscopic Partial Nephrectomy or Robotic Assisted Laparoscopic Prostatectomy
  • Ability to understand and the willingness to sign a written informed consent.

You may not qualify if:

  • Prior Partial Nephrectomy or Subtotal Prostatectomy Surgery (organ specific)
  • Conversion to open surgery
  • History of chronic pain
  • History of opiate or alcohol dependence
  • Allergies to local anesthetic
  • Retroperitoneal surgery
  • Single Port Surgery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mount Sinai Hospital

New York, New York, 10029, United States

Location

Related Publications (4)

  • Hosgood SA, Thiyagarajan UM, Nicholson HF, Jeyapalan I, Nicholson ML. Randomized clinical trial of transversus abdominis plane block versus placebo control in live-donor nephrectomy. Transplantation. 2012 Sep 15;94(5):520-5. doi: 10.1097/TP.0b013e31825c1697.

    PMID: 22902793BACKGROUND
  • Aniskevich S, Taner CB, Perry DK, Robards CB, Porter SB, Thomas CS, Logvinov II, Clendenen SR. Ultrasound-guided transversus abdominis plane blocks for patients undergoing laparoscopic hand-assisted nephrectomy: a randomized, placebo-controlled trial. Local Reg Anesth. 2014 May 25;7:11-6. doi: 10.2147/LRA.S61589. eCollection 2014.

    PMID: 24860252BACKGROUND
  • Qu G, Cui XL, Liu HJ, Ji ZG, Huang YG. Ultrasound-guided Transversus Abdominis Plane Block Improves Postoperative Analgesia and Early Recovery in Patients Undergoing Retroperitoneoscopic Urologic Surgeries: A Randomized Controlled Double-blinded Trial. Chin Med Sci J. 2016 Sep 20;31(3):137-141. doi: 10.1016/s1001-9294(16)30041-4.

    PMID: 27733219BACKGROUND
  • Dal Moro F, Aiello L, Pavarin P, Zattoni F. Ultrasound-guided transversus abdominis plane block (US-TAPb) for robot-assisted radical prostatectomy: a novel '4-point' technique-results of a prospective, randomized study. J Robot Surg. 2019 Feb;13(1):147-151. doi: 10.1007/s11701-018-0858-6. Epub 2018 Jul 28.

    PMID: 30056612BACKGROUND

MeSH Terms

Conditions

Pain, Postoperative

Interventions

BupivacaineAnesthesia, Local

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Intervention Hierarchy (Ancestors)

AnilidesAmidesOrganic ChemicalsAniline CompoundsAminesAnesthesia, ConductionAnesthesiaAnesthesia and Analgesia

Limitations and Caveats

This trial reflected the practice of a busy academic tertiary care center. There were numerous anesthesiologists performing the UTAP and the choice of intraoperative anesthetic and medications given was uncontrolled. In addition, multiple surgeons accrued patients to the trial with variances in operative technique. This heterogeneity among anesthesiologists and surgeons does introduce confounders but also lends to the generalizability of the present study.

Results Point of Contact

Title
Dr. Reza Mehrazin
Organization
Icahn School of Medicine at Mount Sinai

Study Officials

  • Reza Mehrazin, MD

    Icahn School of Medicine at Mount Sinai

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
A randomization service called Sealedenvelope.com available at https://www.sealedenvelope.com/simple-randomiser/v1/ will be used for allocation concealment to ensure that retrieval of the treatment group assignment is only revealed to appropriate team members on a real time basis after each new patient has been screened and consented. This service allows for allocation concealment that would not be possible if the entire randomization list was made available to team members at the beginning of the study. The security and integrity of the codes used by Sealedenvelope.com follows the Food and Drug Administration (FDA) standards for electronic records and follows the International Conference on Harmonisation Good Clinical Practice (ICH GCP) guidelines. Participants will be blinded to group allocation throughout the study. Due to the nature of the intervention, it is not possible to blind the investigator to group allocation.
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: This is a single-center, single-blinded, (stratified) randomized placebo-controlled three-arm non-inferiority trial with 2:2:1 allocation ratio. People who meet eligibility requirements and provide informed consent will be randomly allocated to 3 groups to receive either UTAP, LTAP or Placebo with a 2:2:1 allocation ratio. The allocation sequence will be stratified by type of surgery (prostatectomy or partial nephrectomy) using stratified block randomization with randomly varying block sizes. Random permuted blocks sizes within stratification groups will be used to minimize the chance of selection bias. Investigators will be blinded to the size of each block with only the study statistician responsible for generating the randomization list knowing this information.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor, Urologic Oncology

Study Record Dates

First Submitted

June 8, 2020

First Posted

June 11, 2020

Study Start

November 11, 2019

Primary Completion

February 13, 2021

Study Completion

February 13, 2021

Last Updated

March 12, 2024

Results First Posted

May 6, 2022

Record last verified: 2024-02

Data Sharing

IPD Sharing
Will not share

Locations