NCT04188197

Brief Summary

This study will evaluate a reward devaluation strategy in which smokers use the JUUL e-cigarette immediately before any combustible cigarettes (CCs) are smoked. This procedure is predicted to accomplish three goals: 1) the rewarding effects of CC will be disrupted because subjects will already have attained fairly high peak nicotine concentrations immediately before smoking the cigarette. This reduces the rewarding effect of smoking, in part from receptor desensitization that occurs following nicotine exposure, which reduces the response to a subsequent dose of nicotine, and in part from satiating the drive to smoke; 2) the use of the JUUL will become associated with the same cues that elicit smoking, thereby promoting the substitution of JUUL use for CC use; and 3) ad libitum nicotine intake from the JUUL and its rewarding effects will be maximized because, unlike CC, they will be experienced after a period of nicotine deprivation. Thus, despite a lower per-puff nicotine dose relative to CC, the pharmacologic impact and reinforcing effect will be maximized. The study will evaluate two flavors (Mint and Virginia Tobacco), randomly assigned, to determine if flavor assignment (similar to the subjects' usual brand of CC or different than the subjects usual brand CC) has an effect on the success of this reconditioning procedure.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2019

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 26, 2019

Completed
14 days until next milestone

First Submitted

Initial submission to the registry

September 9, 2019

Completed
3 months until next milestone

First Posted

Study publicly available on registry

December 5, 2019

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 2, 2021

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 22, 2021

Completed
3.8 years until next milestone

Results Posted

Study results publicly available

April 20, 2025

Completed
Last Updated

April 20, 2025

Status Verified

April 1, 2025

Enrollment Period

1.5 years

First QC Date

September 9, 2019

Results QC Date

January 5, 2023

Last Update Submit

April 3, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Effects of Devaluation on Switching From Cigarettes to the JUUL E-cigarette

    Biochemically verified smoking abstinence during weeks 9-12, i.e., self-report of no smoking confirmed by an expired air CO reading of \<5 ppm.

    During Weeks 9-12

Secondary Outcomes (1)

  • Changes in Cigarette Reward With Subsequent Switching Behavior

    Week 1

Study Arms (2)

e-Cigarette Matched to Usual Brand Cigarette

EXPERIMENTAL

JUUL and cigarette flavor matched ("Mint" for menthol smokers and "Virginia Tobacco" for non-menthol smokers);

Other: JUUL

e-Cigarette Unmatched to Usual Brand Cigarette

EXPERIMENTAL

JUUL and cigarette flavor unmatched ("Virginia Tobacco" for menthol smokers and "Mint" for non-menthol smokers).

Other: JUUL

Interventions

JUULOTHER

Subjects will be instructed to use the JUUL as often as they like during the 12-week product use period. They will also be instructed to use JUUL immediately before each cigarette to relieve their craving as much as possible before smoking their usual brand. The JUUL will also be the first product that they are instructed to use each morning. Smokers will be told to try to completely substitute JUUL for cigarettes by the end of the first week of use.

e-Cigarette Matched to Usual Brand Cigarettee-Cigarette Unmatched to Usual Brand Cigarette

Eligibility Criteria

Age21 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Has signed the ICF and is able to understand the information provided in the ICF.
  • Is 21 to 65 years of age (inclusive) at screening.
  • Smokes ≥ 10 commercially available CCs per day (no brand restrictions), for the last 12 months.
  • Expired air CO reading of at least 10 ppm as assessed at the screening session.
  • Interested in switching to an electronic cigarette.
  • Willing and able to comply with the requirements of the study.
  • Owns a smartphone with text message and data capabilities compatible with necessary surveys.

You may not qualify if:

  • Is unhealthy or cannot participate in the study for any reason (e.g., medical, psychiatric, and/or social reason) as judged by the Investigator or designated medical staff based on all available assessments from the screening period (e.g., safety laboratory, vital signs, physical examination, ECG, concomitant medications and medical history).
  • PHQ-9 score greater than 9, or a score greater than 0 on item #9 ("Thoughts that you would be better off dead, or of hurting yourself in some way") at screening.
  • Planned use of an FDA-approved smoking cessation product during the study.
  • High Blood Pressure (systolic \>150 mm Hg, diastolic \>95 mm Hg) at screening.
  • Body mass index (BMI) less than 15.0 kg/m2 or greater than 40.0 kg/m2.
  • Coronary heart disease, structural cardiac disease (including, but not limited to valvular heart disease or cardiac murmurs), cardiac dysrhythmias, syncope, cardiac chest pain, or history of heart attack or heart failure.
  • Has received psychotherapy or behavioral treatments within 30 days of screening, or during the study.
  • Taking antidepressants or psychoactive medications (e.g. antipsychotics, benzodiazepines, hypnotics).
  • Use of any of these products in the past 30 days:
  • Illegal drugs (or if the urine drug screen is positive for cocaine, THC, amphetamines, methamphetamines, or opiates);
  • Experimental (investigational) drugs that are unknown to the subject;
  • Chronic opiate use.
  • Use of smokeless tobacco (chewing tobacco, snuff), cigars (except for "Black \& Mild" cigars or Cigarillos), pipes, hookah, e-cigarettes, nicotine replacement therapy or other smoking cessation treatments within 14 days of screening.
  • Pregnant or nursing (by self-report) or positive pregnancy test.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Rose Research Center

Charlotte, North Carolina, 28262, United States

Location

Rose Research Center

Raleigh, North Carolina, 27617, United States

Location

MeSH Terms

Conditions

Smoking CessationHarm ReductionVapingCigarette SmokingTobacco Use DisorderTobacco Use Cessation

Condition Hierarchy (Ancestors)

Health BehaviorBehaviorSmokingTobacco SmokingTobacco UseSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Results Point of Contact

Title
Dr. Jed E. Rose
Organization
Rose Research Center

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
President and CEO

Study Record Dates

First Submitted

September 9, 2019

First Posted

December 5, 2019

Study Start

August 26, 2019

Primary Completion

March 2, 2021

Study Completion

June 22, 2021

Last Updated

April 20, 2025

Results First Posted

April 20, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

Locations