MedPath

Effective Interventions to Overcome Severe Gag Reflex

Not Applicable
Not yet recruiting
Conditions
Gagging
Interventions
Device: Acupuncture
Genetic: Masking Tape
Drug: Anesthetic spray
Registration Number
NCT07099131
Lead Sponsor
Tufts University
Brief Summary

The purpose of this study is to evaluate the use of various techniques in alleviating gag reflex following gag reflex stimulation.

Primary aim: To compare if there is any reduction in gag reflex from each of the following interventions

* Acupuncture (CV-24)

* Tape

* Anesthetic spray Secondary aim: to compare the degree of gag reduction

Detailed Description

The purpose of this study is to evaluate the use of various techniques in alleviating gag reflex following gag reflex stimulation.

Primary aim: To compare if there is any reduction in gag reflex from each of the following interventions

* Acupuncture (CV-24)

* Tape

* Anesthetic spray Secondary aim: to compare the degree of gag reduction

Recruitment & Eligibility

Status
NOT_YET_RECRUITING
Sex
All
Target Recruitment
45
Inclusion Criteria
  • 18 years or older (individuals below 18 years will be excluded from the study as the study procedures might not be well tolerated by them, and they are not the primary population on which these procedures are used).
  • Students, faculty, or staff of Tufts SDM
  • Subjects who score a 2 or higher on the Gagging Severity Index (GSI)7 and have a positive gag reflex response when stimulated with a cotton swab at the base of the tongue/uvula/tonsil region.
Exclusion Criteria
  • Adults unable to consent (cognitively impaired adults)
  • Wards of the state
  • Pregnant women (those that are self-reported)
  • Current use of anticoagulants
  • Allergy to xylocaine
  • Those with bleeding disorders
  • Those who participated in the Calibration phase of this study

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Acupuncture (CV-24)AcupunctureA 6C file (endodontic instrumentation file) will be placed on the patient's mentolabial fold (CV24). This file will be concealed by a small paper cup; A clean alcohol wipe will be used to clean the mentolabial area prior to placing the "acupuncture needle" (6 C-File).
TapeMasking TapeA piece of commercially available masking tape will be adhered to the patient's mentolabial fold and concealed by the small paper cup
Anesthetic sprayAnesthetic sprayWill be applied to back of the throat for 10 seconds; their chin will also be concealed from the GSI examiner using a small cup and masking tape.
Primary Outcome Measures
NameTimeMethod
Change in Gag Reflex Severity Index (GSI) Score From Pre- to Post-Intervention90 minutes per subject

Change in Gag Reflex Severity Index (GSI) Score From Baseline to Post-Intervention

* Acupuncture (CV-24)

* Tape

* Anesthetic spray

Gag reflex severity will be assessed by clinicians using the Gagging Severity Index (GSI), based on definitions set by Dickinson and Fiske. GSI will first be recorded after initial gag stimulation with a cotton swab. Following randomization to one of three interventions (acupuncture, anesthetic spray, or masking tape), GSI will be recorded again. The change in GSI score will be used to measure change in gag response.

Secondary Outcome Measures
NameTimeMethod
Self-Reported Degree of Gag Reflex Reduction Using Visual Analog Scale (VAS)Immediately post-intervention during single study visit

Participants will complete an in-session survey to rate their gag reflex severity after the assigned intervention using a Visual Analog Scale (VAS). The VAS rating reflects the participant's perception of gag reduction following either acupuncture at CV24, anesthetic spray, or masking tape application.

Trial Locations

Locations (1)

Tufts University School of Dental Medicine

🇺🇸

Boston, Massachusetts, United States

Tufts University School of Dental Medicine
🇺🇸Boston, Massachusetts, United States
Devon Ptak
Contact
6176366889
devon.ptak@tufts.edu

MedPath

Empowering clinical research with data-driven insights and AI-powered tools.

© 2025 MedPath, Inc. All rights reserved.