NCT03579953

Brief Summary

Prior and recent evidence suggests a role of medial prefrontal cortex (MPFC) in cigarette smoking. Episodic Future Thinking (EFT) has also been shown to be associated with increased delayed discounting and reduced cigarette self administration. In the present study, we will examine whether a single administration of theta-burst transcranial magnetic stimulation (tbTMS) can increase Episodic Future Thinking and delayed discounting while reducing craving for nicotine.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
16

participants targeted

Target at P25-P50 for early_phase_1

Timeline
Completed

Started May 2018

Shorter than P25 for early_phase_1

Geographic Reach
1 country

1 active site

Status
completed

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

May 22, 2018

Completed
21 days until next milestone

First Submitted

Initial submission to the registry

June 12, 2018

Completed
27 days until next milestone

First Posted

Study publicly available on registry

July 9, 2018

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 10, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 10, 2019

Completed
Last Updated

August 14, 2019

Status Verified

August 1, 2019

Enrollment Period

1.1 years

First QC Date

June 12, 2018

Last Update Submit

August 13, 2019

Conditions

Keywords

Brain Stimulation

Outcome Measures

Primary Outcomes (1)

  • Changes in craving after a single session of cTBS

    The effect of real versus sham cTBS on nicotine craving will be assessed by comparing pre-TMS and post-TMS changes in nicotine craving scores.

    For the duration of the study, approximately 24 hours following real or sham cTBS

Secondary Outcomes (1)

  • Changes in delayed discounting after a single session of cTBS

    For the duration of the study, approximately 24 hours following real or sham cTBS

Study Arms (2)

Real cTBS to MPFC

EXPERIMENTAL

One session of real cTBS treatment delivered to the medial prefrontal cortex (MPFC) (2 trains of stimulation over the MPFC as defined by EEG coordinates (FP1); each train: 120 sec, 3 pulse bursts presented at 5Hz, 15 pulses/sec, 1800 pulses/train, 60 sec intertrain interval; 110% RMT, MagPro X100 Cool Coil; 3600 pulses total).

Device: Real cTBS

Sham cTBS to MPFC

SHAM COMPARATOR

One session of sham cTBS treatment delivered to the medial prefrontal cortex (MPFC) (2 trains of stimulation over the MPFC as defined by EEG coordinates (FP1); each train: 120 sec, 3 pulse bursts presented at 5Hz, 15 pulses/sec, 1800 pulses/train, 60 sec intertrain interval; 110% RMT, MagPro X100 Cool Coil; 3600 pulses total).

Device: Sham cTBS

Interventions

Real cTBSDEVICE

This will be delivered with the Magventure Magpro system; 3600 pulses with the active sham coil (double blinded using the USB key).

Real cTBS to MPFC
Sham cTBSDEVICE

This will be delivered with the sham Magventure Magpro system; 3600 pulses with the active sham coil (double blinded using the USB key). The MagVenture MagPro system has an integrated active sham that passes current through two surface electrodes placed on the skin beneath the B60 coil.

Sham cTBS to MPFC

Eligibility Criteria

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

You may qualify if:

  • years of age
  • Smoke at least 10 cigarettes a day (on average)
  • Not be pregnant
  • Meet all criteria on a standardized TMS safety screen (including to but not limited to implanted electronic devices, bullets or metallic fragments above the neck, hair clips that cannot be removed)
  • No barriers to making contact between the TMS coil and the skin (e.g. cornrows that cannot be removed, glasses that the participant is unwilling to remove)

You may not qualify if:

  • Report comorbid mental or physical illness (managed or unmanaged)
  • Currently using prescription medication that might affect smoking or nicotine metabolism
  • Using smokeless tobacco or alternative nicotine products
  • History of epilepsy or seizures (other than childhood febrile seizures)
  • History of chronic migraines

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of South Carolina

Charleston, South Carolina, 29425, United States

Location

MeSH Terms

Conditions

SmokingTobacco Use DisorderBehavior, AddictiveCigarette Smoking

Condition Hierarchy (Ancestors)

BehaviorSubstance-Related DisordersChemically-Induced DisordersMental DisordersCompulsive BehaviorImpulsive BehaviorTobacco SmokingTobacco Use

Study Officials

  • Colleen A Hanlon, PhD

    Medical University of South Carolina

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 12, 2018

First Posted

July 9, 2018

Study Start

May 22, 2018

Primary Completion

June 10, 2019

Study Completion

June 10, 2019

Last Updated

August 14, 2019

Record last verified: 2019-08

Data Sharing

IPD Sharing
Will not share

Locations