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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04388319
Other study ID # BuZonE
Secondary ID
Status Completed
Phase Phase 3
First received
Last updated
Start date May 27, 2020
Est. completion date September 15, 2021

Study information

Verified date March 2022
Source Rose Research Center, LLC
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This single-group, small-scale, open-label study (N= 25 to 50) will evaluate the impact of combination zonisamide and bupropion on the process of switching from combustible cigarettes (CC) to an e-cigarette. There will be a data collection period of at least five days to obtain baseline data on use of combustible cigarettes. Participants enrolled in the study will receive a G6 e-cigarette at V2 for ad libitum use. After the first week of e-cigarette use, (at V3) participants will be given zonisamide (100 mg/daily) and will begin extended-release bupropion dosing (150 mg each morning days 1-3, then 300 mg/daily) in addition to continued use of the G6. At each visit, participants will receive enough zonisamide, bupropion, and Halo G6 cartomizers to last until their next study visit. Halo G6 and combination zonisamide and bupropion use will continue until the participant returns for the End-of-Study visit (V7).


Recruitment information / eligibility

Status Completed
Enrollment 26
Est. completion date September 15, 2021
Est. primary completion date June 4, 2021
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 21 Years to 65 Years
Eligibility Inclusion Criteria: 1. Has signed the ICF and is able to read and understand the information provided in the ICF. 2. Is 21 to 65 years of age (inclusive) at screening. 3. Smokes at least 10 commercially available cigarettes per day (no brand restrictions), for the last 12 months. 4. Has an expired air CO reading of at least 10 ppm at screening. 5. Interested in switching to an electronic cigarette. 6. Willing and able to comply with the requirements of the study. 7. Owns a smart phone with text message and data capabilities compatible with necessary surveys. Exclusion Criteria: 1. 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). 2. 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. 3. Planned use of an FDA-approved smoking cessation product during the study. 4. High blood pressure (systolic > 150 mmHg or diastolic >95 mmHg) at screening. 5. Body mass index (BMI) less than 15.0 kg/m2 or greater than 40.0 kg/m2. 6. 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. 7. Has received psychotherapy or behavioral treatments potentially impacting symptoms of depression, anxiety, or nicotine withdrawal within 30 days of screening, or during the study. 8. Taking antidepressants, psychoactive medications (e.g. antipsychotics, benzodiazepines, hypnotics) or medications that prolong QTc. 9. Use of any of these products in the past 30 days: 1. Illegal drugs (or if the urine drug screen is positive for cocaine, THC, amphetamines, methamphetamines, or opiates); 2. Experimental (investigational) drugs that are unknown to participant; 3. Chronic opiate use. 10. 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. 11. Pregnant or nursing (by self-report) or has a positive pregnancy test. 12. Enrollment requirements met.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Zonisamide
Zonisamide (100 mg/daily) for 12 weeks.
Bupropion
Extended-release bupropion dosing (150 mg each morning days 1-3, then 300 mg/daily) for the remainder of the 12 weeks.
Other:
Halo G6 e-cigarette
G6 e-cigarette for ad libitum use for two weeks prior to complete switch day.

Locations

Country Name City State
United States Rose Research Center Charlotte North Carolina
United States Rose Research Center Raleigh North Carolina

Sponsors (2)

Lead Sponsor Collaborator
Rose Research Center, LLC Foundation for a Smoke-Free World

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number of Participants That Completely Switched From Combustible Cigarettes to Halo G6 E-Cigarettes Defined as self-report of no cigarette smoking (not even a puff), confirmed by an expired air CO reading of less than 5 ppm. Weeks 8-11 post-quit date (weeks 10-13 post baseline)
Secondary Point Abstinence From Combustible Cigarettes Assessed by self-report utilizing an automated SMS messaging system. Six months post switch day (approximately 6 months post baseline)
Secondary Change in Rewarding Effects of Smoking Combustible Cigarettes Characterize changes in the two primary scales of the Cigarette Evaluation Questionnaire (mCEQ), assessing smoking satisfaction and psychological reward, compared between cigarettes smoked after meals versus all others smoked during the day, examining how this difference changes after zonisamide/bupropion usage. The mCEQ uses a 7-point scale (0=Not at all; 1=Very little; 2=A little; 3=Moderately; 4=A lot, 5=Quite a lot; 6=Extremely) to measure the following subscales: Satisfaction, Psychological Reward, Enjoyment of Respiratory Tract Sensations, Craving Reduction, Aversion. First week compared to after start of study drugs (Weeks 2-13 post baseline)
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