Actively Recruiting

Early Phase 1
Age: 18Years - 65Years
All Genders
Healthy Volunteers
NCT05490134

RM1 Project 1 - tAN Naloxone

Led by Medical University of South Carolina · Updated on 2025-12-18

136

Participants Needed

1

Research Sites

236 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This two-visit, randomized, double-blind, sham-controlled trial, uses a novel naloxone blockade model in 136 individuals to determine whether the analgesic effects of a 30-minute transcutaneous auricular neurostimulation (tAN) intervention are mediated through a release of endogenous opioids. Analgesic effects of four various stimulation interventions will be measured (auricular vagus, auricular trigeminal, combination, or sham) while varying the type of intravenous (IV) infusion (either naloxone or saline) a participant is administered to determine whether the analgesic effects are mitigated by pharmacological opioid receptor blockade.

CONDITIONS

Official Title

RM1 Project 1 - tAN Naloxone

Who Can Participate

Age: 18Years - 65Years
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Age 18-65
  • Ability to provide informed consent and sign consent document
Not Eligible

You will not qualify if you...

  • Contraindicated for MRI
  • Current or recent untreated medical, neurological, or psychiatric conditions
  • Metal implants in head, heart, or neck
  • History of brain surgery
  • History of heart attack, arrhythmia, or bradycardia
  • Personal or family history of seizure or epilepsy or use of medications lowering seizure threshold
  • History of head injury, concussion, or moderate to severe traumatic brain injury
  • Frequent or severe headaches
  • History or current psychosis or mania
  • Regular or recent use of pain medication
  • Moderate to severe alcohol or substance use disorder
  • Use of psychotropic or cardiac medications that may interact with naloxone
  • Positive urine drug screen for opiates
  • Pregnant or lactating females

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 1 location

1

Medical University of South Carolina

Charleston, South Carolina, United States, 29425

Actively Recruiting

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Research Team

B

Bashar Badran, PhD

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

FACTORIAL

Primary Purpose

TREATMENT

Number of Arms

4

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