ClinicalTrials.gg
CompletedNCT06401473TFGCTUpdated May 7, 2024

Using the Gate Control Theory of Pain to Decrease Pain During Trigger Finger Corticosteroid Injections

An interventional study of Ipsilateral Scratch Task and Motor Distraction Task in Trigger Finger and Pain, sponsored by Grand Canyon University. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-05-07.

Sponsored by Grand Canyon University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 7 months after the study started (first participant enrolled Sep 2023, registered May 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
105
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this clinical trial is to investigate a new noninvasive technique that patients may use to help reduce the pain that they experience during cortisone injections for trigger fingers. It will also help provide information that may help support the gate control theory of pain as a framework for understanding and managing acute pain.The main questions it aims to answer are:

Can a physical stimulus near the site of cortisone injection reduce the pain experienced by the patient during the injection? Does the physical stimulation or the cognitive distraction contribute more to pain relief?

Researchers will compare a physical stimulus near the injection site to a placebo (a similar task that theoretically should not reduce the experience of pain) to see if physical stimuli work to improve pain during injections.

Participants will:

Estimate how much pain they expect to experience during a cortisone injection Receive a cortisone injection for a trigger finger while performing one of three possible actions (control, placebo task, or the investigated physical stimulus near the injection site) Express how much pain they actually experienced during the injection

02

Conditions studied

  • Trigger Finger
  • Pain

Keywords

  • Gate Control Theory of Pain
  • Injection
03

In context

Trigger Finger Disorder

93 studies on the registry are indexed under Trigger Finger Disorder; 22 are open to participants now.

This study's enrollment of 105 is above the median of 66 across 75 interventional studies indexed under Trigger Finger Disorder.

Browse Trigger Finger Disorder studies →

Lead sponsor

This is the only study on the registry with Grand Canyon University 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
Yes

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

  • Are at least 18 years of age.
  • Have been diagnosed with one or more "trigger fingers" of the index, middle, ring, or small fingers.
  • Have decided to try a cortisone injection for one or more trigger fingers today as advised by your physician.
  • Are able to read and understand these study procedures.

Exclusion criteria

Exclusion Criteria:

  • Are severely visually impaired.
  • Have a history of spinal cord injury.
  • Have taken opioid pain medications in the last 28 days.
  • Are currently pregnant.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
105 participants (actual)

Study arms

  • No intervention
    Control

    Patients received no intervention during cortisone injection.

  • Sham comparator
    Distraction

    Patients were instructed on a sham motor distraction task on the contralateral upper limb and performed this task during cortisone injection.

    Behavioral: Motor Distraction Task

  • Experimental
    Experimental

    Patients were instructed on the experimental task, involving scratching the upper limb ipsilateral to the site of the injection, and they performed this task during cortisone injection.

    Behavioral: Ipsilateral Scratch Task

Interventions

  • BehavioralIpsilateral Scratch Task

    Patients scratch the skin within the relevant cervical dermatome, ipsilateral to the injection site

  • BehavioralMotor Distraction Task

    Patients scratch the skin of the shoulder/neck contralateral to the injection site

06

What researchers measure

Primary outcomes

  1. Visual Analog Scale (VAS) Score

    Patients denote the pain they experienced during the injection based on a standard 100-mm Visual Analog Scale. Scores range from 0-100, with lower scores indicating less pain. A score of 0 indicates no pain at all, while a score of 100 indicates the worst pain possible.

    Time frame: Immediately after injection (within 10 seconds)

07

Study locations

1 site
  • OrthoArizona
    Gilbert, Arizona 85297, United States
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 May 7, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06401473
Lead sponsor
Grand Canyon University
Responsible party
Aidan Crislip (Principal Investigator, Grand Canyon University) — Principal investigator
First posted
May 6, 2024
Start date
Sep 11, 2023
Primary completion
Apr 11, 2024
Completion
Apr 11, 2024
Last update
May 7, 2024

Study contacts

Aidan Crislip, BS
principal investigator · Grand Canyon University

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.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion