ClinicalTrials.gg
Status unknownNCT03619785Updated Dec 19, 2018

US-guided SAPB for Rib Fractures in the ED

A Phase 4 interventional study of Bupivacaine and Fentanyl, morphine, hydromorphone, hydrocodone, acetaminophen, ketorolac, gabapentin, ketamine, ibuprofen in Rib Fractures and Rib Fracture Multiple, sponsored by Andrew A Herring. Status unknown at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-12-19.

Sponsored by Andrew A Herring · Phase 4, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Dec 2018), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 4
Study type
Interventional
Enrollment
70
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this randomized controlled study is to determine whether the serratus anterior plane block reduces pain more than the usual treatment for rib fractures in the same amount of time.

Read the detailed description

Patients with unilateral rib fractures in the Highland Hospital Emergency Department who agree to participate will be randomized 1:1 to either the control group or the experimental group. Those in the control group will receive the usual oral and/or IV pain medication as needed. The experimental group will receive an ultrasound-guided serratus anterior plane block. Numerical pain rating scale scores at rest and when taking a deep breath will be recorded pre-intervention and at times 0, 20, 40, and 60. At time 60, patients who received the SAPB will receive sensory testing. Patients will be offered additional pain medication as needed at times 20, 40, and 60.

02

Conditions studied

  • Rib Fractures
  • Rib Fracture Multiple

Keywords

  • Nerve Block
  • Serratus Anterior Plane Block
  • Ultrasound
  • Emergency Department
03

In context

Rib Fractures

126 studies on the registry are indexed under Rib Fractures; 28 are open to participants now.

This study's planned enrollment of 70 is above the median of 60 across 92 interventional studies indexed under Rib Fractures.

Browse Rib Fractures studies →

Lead sponsor

This is the only study on the registry with Andrew A Herring as lead sponsor.

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

04

Who can participate

Ages eligible
18 Years and older
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

  • Males and females 18 years and older, capable of providing indicating awareness of the nature of the study, in keeping with institutional policy.
  • Written informed consent must be obtained from each patient prior to entering the study.
  • Patients with moderate to severe pain (NRS 4 to 10) as a result of one or more rib fractures occurring at levels T2-T8, measured on a self-reported NRS.

Exclusion criteria

Exclusion Criteria:

  • Patient refusal
  • Patients with significant pain from other injuries (as determined at the discretion of the treating physician)
  • Patients deemed critically ill by provider
  • Patients with decompensated psychiatric disorders
  • Pregnant patients (positive urine or serum B-HCG)
  • History of heart block or bradycardia
  • History of uncontrolled seizures
  • Patients allergic to lidocaine, bupivacaine, ropivacaine, or morphine
  • Patients with bilateral rib fractures
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.

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.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
70 participants (estimated)

Study arms

  • Experimental
    Experimental (SAPB)

    Patients randomized to the experimental arm receive an ultrasound-guided serratus anterior plane block for their rib fracture pain.

    Drug: Bupivacaine

  • Active comparator
    Control

    Patients randomized to the control arm receive usual pain control treatment in the emergency department.

    Drug: Fentanyl, morphine, hydromorphone, hydrocodone, acetaminophen, ketorolac, gabapentin, ketamine, ibuprofen

Interventions

  • Patient will be positioned supine or in the lateral decubitus position on the side contralateral to the fracture(s). A 3.5 in 20-gauge needle, extension tubing, and a 30 mL syringe loaded with 0.25% bupivacaine and 3 mL of 1% lidocaine loaded in a 5 mL syringe with a 27-gauge needle will be prepared. The ribs, teres minor, latissimus dorsi, and serratus anterior will be identified with bedside US and the site of entry marked along the lateral aspect of the 4th-5th rib. The skin will be sterilized and lidocaine placed at the site of entry. The needle will be introduced at a steep angle and advanced in-plane, under US-guidance, to the plane superficial to the serratus anterior muscle. A test dose of normal saline will confirm proper needle tip placement with opening of the intramuscular layer. Injection with aliquots of 3-5 mL after negative aspiration will continue until 30mL of 0.25% bupivacaine are administered.

  • DrugFentanyl, morphine, hydromorphone, hydrocodone, acetaminophen, ketorolac, gabapentin, ketamine, ibuprofen

    Drug pages: Fentanyl · Morphine · Hydromorphone · Hydrocodone · Acetaminophen · Ketorolac · Gabapentin · Ketamine · Ibuprofen

    Oral or IV pain medication as needed.

06

What researchers measure

Primary outcomes

  1. Change in Numeric Pain Rating Scale score between time 0 and time 60 when comparing block and control groups

    Change in Numeric Pain Rating Scale scores between time 0 and time 60 between block and control groups: Numeric Pain Rating Scale score at 0 minutes minus Numeric Pain Rating Scale score at 60 minutes, where a score of 0 is no pain and 10 is the worst pain the patient can imagine.

    Time frame: 60 minutes

Secondary outcomes

  1. Change in Numeric Pain Rating Scale score at rest versus when taking a deep breath when comparing block and control groups

    Change in Numeric Pain Rating Scale score for resting chest pain and dynamic chest pain at 20, 40, and 60 minutes between block and control groups, where a score of 0 is no pain and 10 is the worst pain the patient can imagine.

    Time frame: 20, 40, 60 minutes

  2. Difference in total morphine equivalents

    Difference in total parenteral morphine equivalents received during study period (0 minutes to 60 minutes) and at 4, 12, and 24 hours (unless discharged from the hospital prior to 24 hours) in the block and control groups.

    Time frame: 1, 4, 12, and 24 hours

  3. Successful analgesia for block group

    Successful analgesia at 20, 40 and 60 minutes: Proportion of patients not receiving morphine dosing.

    Time frame: 20, 40, 60 minutes

  4. Non-opioid medications given (yes/no)

    NSAID, APAP, Gabapentin administered in block versus control groups.

    Time frame: 20, 40, 60 minutes

  5. Adverse events

    Proportion of patients with new onset of seizure, arrhythmias, hyper or hypotension (SBP\<90 or \>180), hypoxia, nausea, lightheadedness, vomiting.

    Time frame: 60 minutes

  6. Sensory testing

    Sensory testing to cold stimulus (alcohol swab) in the block group along the lateral sternal, anterior axillary, and posterior axillary lines at the levels of T2-T10 using a 3-point scale: 0 (unchanged), 1 (reduced), or 2 (no sensation).

    Time frame: 60 minutes

07

Study locations

1 of 1 sites recruiting
  • Alameda Health System - Highland Hospital
    Oakland, California 94602, United States
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 19, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03619785
Lead sponsor
Andrew A Herring
Responsible party
Andrew A Herring (Associate Research Director, Department of Emergency Medicine, Highland Hospital, Alameda Health System) — Sponsor-investigator
First posted
Aug 8, 2018
Start date
Nov 6, 2018
Primary completion
Aug 31, 2019 (estimated)
Completion
Aug 31, 2019 (estimated)
Last update
Dec 19, 2018

Study contacts

Andrew Herring
Contact
aherring@alamedahealthsystem.org
510-633-7498
Jennifer Sun
Contact
jennsun@alamedahealthsystem.org
510-437-8364
Andrew Herring, MD
principal investigator · Alameda Health System - Highland Hospital
Josh Luftig, PA
principal investigator · Alameda Health System - Highland Hospital
Eben Clattenburg, MD
principal investigator · Alameda Health System - Highland Hospital
Daniel Mantuani, MD, MPH
principal investigator · Alameda Health System - Highland Hospital
Arun Nagdev, MD
principal investigator · Alameda Health System - Highland Hospital

Oversight

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

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Studies of the drug tested here: Bupivacaine

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