NCT06405074

Brief Summary

The goal of this clinical trial is to to inhibit the dorsal anterior insula (dAI) with low intensity focused ultrasound (LIFU) to determine the causal role for the dAI in smoking cue induced craving in individuals with tobacco use disorder (TUD); smoking cue induced craving is a clinically important behavior which has been associated with the severity of nicotine addiction. The main question\[s\] it aims to answer are:

  • the safety and tolerability of dAI LIFU compared to sham stimulation in individuals with TUD
  • the effects of LIFU vs sham to left dAI functional magnetic resonance imaging (fMRI) BOLD activity and craving in response to smoking cue exposure. Participants will undergo anatomical MRI, neurological assessment, clinical assessment and patient query to assess the safety and tolerability of LIFU vs sham. Participants will undergo functional magnetic resonance imaging where we will measure the effect of LIFU vs sham on 1) dAI blood-oxygen-level-dependent (BOLD) activation in response to smoking (compared to neutral) cue exposure and 2) cue-induced craving in individuals with TUD. Each participant will receive LIFU and sham stimulation.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
44

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Start

First participant enrolled

April 1, 2022

Completed
1.6 years until next milestone

First Submitted

Initial submission to the registry

November 16, 2023

Completed
6 months until next milestone

First Posted

Study publicly available on registry

May 8, 2024

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2026

Completed
Last Updated

November 20, 2024

Status Verified

November 1, 2024

Enrollment Period

4 years

First QC Date

November 16, 2023

Last Update Submit

November 15, 2024

Conditions

Keywords

low intensity focused ultrasoundfunctional magnetic resonance imaginginsula

Outcome Measures

Primary Outcomes (1)

  • Incidence of Treatment-Emergent Adverse Events

    number of adverse events

    immediately prior to 1 session LIFU and within 1 hour post LIFU; immediately prior to 1 session sham and with in 1 hour post shamdays

Secondary Outcomes (1)

  • Smoking cue-induced craving

    immediately prior to 1 session LIFU and within 1 hour post LIFU; immediately prior to 1 session sham and with in 1 hour post sham

Study Arms (2)

LIFU/Sham

OTHER

double-blind, sham-controlled, crossover study in N=44 individuals with Tobacco Use Disorder

Device: low intensity focused ultrasound (LIFU)

Sham/LIFU

OTHER

double-blind, sham-controlled, crossover study in N=44 individuals with Tobacco Use Disorder

Device: low intensity focused ultrasound (LIFU)

Interventions

Low-intensity focused ultrasound (LIFU) provides an energy source with millimeter resolution that can be focused anywhere in the brain safely and effectively for non-invasive and transient neuromodulation. LIFU is an important advance and of great significance for brain-mapping efforts, diagnostics, and therapies in neuroscience and particularly promising for addiction therapy as it provides unprecedented non-surgical access to the brain regardless of depth. Much lower intensities of focused ultrasound (LIFU) are used so that tissue damage does not occur, but neural activity can be modulated. LIFU utilizes acoustic energy at much lower levels to affect tissue by mechanical effects.

LIFU/ShamSham/LIFU

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and female veterans aged 18-75 years
  • Meet the Diagnostic and Statistical Manual, Fifth edition (DSM-5) criteria for current TUD (moderate to severe) as diagnosed by the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition.
  • Currently smoking \> 10 cigarettes per day with no period of abstinence \> 3 months in the last year
  • Current use of tobacco in last year is limited to cigarettes
  • Currently in Contemplation Stage of motivation for behavior change with respect to smoking as assessed by the University of Rhode Island Change Assessment Scale

You may not qualify if:

  • Not under current treatment for smoking cessation.
  • No history of head injury, seizures, neurologic disorders including cerebrovascular disease, multiple sclerosis, or neurodegenerative diseases or major medical illness
  • Current substance use disorder for a psychoactive substance (except nicotine)
  • DSM-5 psychiatric disorder requiring current treatment
  • Ferromagnetic implants or other contraindications for MRI
  • Taking any psychotropic medication such as antidepressants, anxiolytics and antipsychotics.
  • any medication other than psychotropic medications that is known to cross the blood brain barrier and achieve brain penetrance such that it will alter BOLD signal or lower seizure threshold, such as antibiotics, antihistamines or muscle relaxants.
  • currently pregnant or breast feeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Veterans Affairs Medical Center

Washington D.C., District of Columbia, 20422, United States

RECRUITING

MeSH Terms

Conditions

Tobacco Use Disorder

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental Disorders

Study Officials

  • Mary R Lee, MD

    Veterans Affairs Medical Center, Washington DC

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Mary R. Lee, MD

CONTACT

Evan Lindeman, BS

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
The Sham condition will be conducted using an interface which does not allow ultrasound energy to pass from the transducer to the target. The administration of LIFU/sham will be conducted in a double-blind fashion.
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: within subject, randomized, double-blind, sham-controlled trial
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 16, 2023

First Posted

May 8, 2024

Study Start

April 1, 2022

Primary Completion

March 31, 2026

Study Completion

March 31, 2026

Last Updated

November 20, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will share

behavioral and imaging data

Shared Documents
SAP, ANALYTIC CODE
Time Frame
data will be available after analysis of primary and secondary outcomes are completed

Locations