NCT05118620

Brief Summary

This will be a randomized comparison of pericapsular nerve group (PENG) blocks with bupivacaine and a placebo control (PENG blocks with normal saline). The overall objective of the proposed research is to determine the relative risks and benefits of a single-injection PENG block to provide postoperative analgesia following hip arthroscopy. Hypothesis 1: Following hip arthroscopy, participants with a PENG block will experience less pain in the recovery room compared with current standard-of-care as measured with the Numeric Rating Scale (NRS). Hypothesis 2: Following hip arthroscopy, participants with a PENG block will consume less opioid in the operating and recovery rooms compared with current standard-of-care as measured in oral morphine milligram equivalents. Primary end point: In order to claim that PENG blocks are superior to placebo overall, at least one of these two hypotheses must demonstrate PENG superiority while the other cannot demonstrate inferiority.

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 Dec 2021

Shorter than P25 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withdrawn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

October 20, 2021

Completed
23 days until next milestone

First Posted

Study publicly available on registry

November 12, 2021

Completed
27 days until next milestone

Study Start

First participant enrolled

December 9, 2021

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2022

Completed
Last Updated

June 3, 2022

Status Verified

May 1, 2022

Enrollment Period

6 months

First QC Date

October 20, 2021

Last Update Submit

May 31, 2022

Conditions

Outcome Measures

Primary Outcomes (2)

  • Pain scores within the recovery room as measured using the numeric rating scale, collected postoperative day 1 for the time since midnight. This is a 0-10 Likert scale measuring pain level with 0 = no pain and 10 = worst imaginable pain scale

    Pain measured using the numeric rating scale, collected within the recovery room for the time since midnight. This is a 0-10 Likert scale measuring pain level with 0 = no pain and 10 = worst imaginable pain

    From admission to the recovery room following surgery until discharge from the recovery room, assessed up to 72 hours. In order to claim PENG blocks are superior to placebo overall at least 1 of the 2 primary hypotheses must demonstrate PENG superiority

  • Total opioid consumption within the recovery room (measured in intravenous morphine equivalents)

    Total opioid consumption within the recovery room (measured in intravenous morphine equivalents)

    From admission to the recovery room following surgery until discharge from the recovery room, assessed up to 72 hours. In order to claim PENG blocks are superior to placebo overall at least 1 of the 2 primary hypotheses must demonstrate PENG superiority

Secondary Outcomes (9)

  • "Average" pain with movement during postoperative day 1 as measured using the numeric rating scale, collected postoperative day 1. This is a 0-10 Likert scale measuring pain level with 0 = no pain and 10 = worst imaginable pain scale

    From discharge from the recovery room until the data collection phone call on postoperative day 1

  • "Worst" pain with movement on postoperative day 1 as measured using the numeric rating scale, collected postoperative day 1. This is a 0-10 Likert scale measuring pain level with 0 = no pain and 10 = worst imaginable pain scale

    From discharge from the recovery room until the data collection phone call on postoperative day 1

  • "Average" pain at rest on postoperative day 1 as measured using the numeric rating scale, collected postoperative day 1. This is a 0-10 Likert scale measuring pain level with 0 = no pain and 10 = worst imaginable pain scale

    From discharge from the recovery room until the data collection phone call on postoperative day 1

  • "Worst" pain at rest on postoperative day 1 as measured using the numeric rating scale, collected postoperative day 1. This is a 0-10 Likert scale measuring pain level with 0 = no pain and 10 = worst imaginable pain scale

    From discharge from the recovery room until the data collection phone call on postoperative day 1

  • Total opioid consumption from recovery room discharge until the data collection phone call on postoperative day 1(measured in intravenous morphine equivalents)

    From recovery room discharge until the data collection phone call on postoperative day 1

  • +4 more secondary outcomes

Other Outcomes (13)

  • Time to perform peripheral nerve block, as measured from the time the needle first touches the patient until it is withdrawn for the final time.

    Preoperatively

  • Study fluid injection time as measured in military format

    Preoperatively

  • "Lowest" pain at rest on postoperative day 1 as measured using the numeric rating scale, collected postoperative day 1. This is a 0-10 Likert scale measuring pain level with 0 = no pain and 10 = worst imaginable pain scale

    From discharge from the recovery room until the data collection phone call on postoperative day 1

  • +10 more other outcomes

Study Arms (2)

Active Treatment

EXPERIMENTAL

This group will receive a single injection PENG nerve block of bupivacaine 0.375% (20 mL)

Drug: Active bupivacaine 0.375% PENG block

Placebo

PLACEBO COMPARATOR

This group will receive a single injection PENG nerve block with normal saline (20 mL)

Drug: Placebo normal saline PENG block

Interventions

A PENG block with bupivacaine 0.375% and epinephrine will be administered using ultrasound-guidance

Also known as: Active Pericapsular Nerve Group block
Active Treatment

A PENG block with normal saline and epinephrine will be administered using ultrasound-guidance

Also known as: Placebo Pericapsular Nerve Group block
Placebo

Eligibility Criteria

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

You may qualify if:

  • undergoing unilateral primary hip arthroscopy with at least moderate postoperative pain anticipated
  • analgesic plan includes a general anesthetic
  • age 18 years or older

You may not qualify if:

  • morbid obesity as defined by a body mass index \> 40 (BMI=weight in kg / \[height in meters\]2)
  • any planned regional analgesic or anesthetic
  • chronic opioid use (daily use within the 2 weeks prior to surgery and duration of use \> 4 weeks)
  • history of opioid abuse
  • any comorbidity which results in moderate or severe functional limitation
  • inability to communicate with the investigators or hospital staff
  • pregnancy
  • incarceration
  • any reason for increased risk of a peripheral nerve block (e.g. anticoagulation)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California, San Diego

San Diego, California, 92103, United States

Location

MeSH Terms

Conditions

Pain, Postoperative

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Study Officials

  • Brian M Ilfeld, MD, MS

    University of California, San Diego

    PRINCIPAL INVESTIGATOR
0

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Triple (Participant, Care Provider, Investigators/Outcomes Assessors) Study solution containing either local anesthetic (bupivacaine) or normal saline will be prepared by the University of California San Diego Investigational Drug Study Service. Both bupivacaine and normal saline are clear and indistinguishable visually.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Parallel Assignment
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Anesthesiology

Study Record Dates

First Submitted

October 20, 2021

First Posted

November 12, 2021

Study Start

December 9, 2021

Primary Completion

May 31, 2022

Study Completion

May 31, 2022

Last Updated

June 3, 2022

Record last verified: 2022-05

Locations