ClinicalTrials.gg
TerminatedNCT03326128Updated Jul 17, 2023

High Dose Bupropion for Smoking Cessation - Pilot Study

A Phase 2 interventional study of Bupropion Hydrochloride in Smoking Cessation, Smoking, Tobacco and Smoking (Tobacco) Addiction, sponsored by University of Southern California. Terminated at 1 site in United States. Open to participants aged 21 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-07-17.

Sponsored by University of Southern California · Phase 2, Interventional, and Treatment

Why this study was terminated
Due to the COVID-19 pandemic, it was difficult to recruit eligible participants.

From the registry’s dates

  • Primary completion was Jul 2023, 3 years 3 months ago, and no results have been posted to the registry.
Phase
Phase 2
Study type
Interventional
Enrollment
12
Allocation
Randomized
Ages
21 Years to 65 Years
Sex
All
01

Study summary

This study aims to investigate the benefit of administering two differing doses of Bupropion (BUP) to smokers to assist with smoking cessation.

Read the detailed description

Participants will be randomly assigned to either receive 300 mg of BUP or 450 mg of BUP for 8 weeks with an aim to quit smoking. In addition, participants will simultaneously receive counseling to set a quit date and stay motivated to quit. Medication will be administered up to 4 weeks before and for 4 weeks after designated quit-date. Post-treatment follow-up appointment will be scheduled for 8, 16, and 26 weeks post treatment to assess commitment to quitting and overall success of the study.

02

Conditions studied

  • Smoking Cessation
  • Smoking, Tobacco
  • Smoking (Tobacco) Addiction
  • Cessation, Tobacco
  • Cigarette Smoking

Keywords

  • Bupropion
  • Smokers
  • Smoking cessation
  • Cigarette smoking
  • Cigarette
03

In context

Smoking Cessation

350 studies on the registry are indexed under Smoking Cessation; 145 are open to participants now.

This study's enrollment of 12 is below the median of 150 across 326 interventional studies indexed under Smoking Cessation.

Browse Smoking Cessation studies →

Lead sponsor

University of Southern California is the lead sponsor of 789 studies on the registry; 136 are open to participants now.

Of its 69 completed or terminated interventional studies of FDA-regulated products, 32 (46%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Smokes cigarettes daily for at least 1 year
  • Breath CO of 5 ppm or higher at Baseline visit
  • Age 21 - 65

Exclusion criteria

Exclusion Criteria:

  • Possible drug contraindications (panic disorder, bipolar disorder, bulimia, anorexia, insomnia, suicidal ideation, alcohol withdrawal, seizures, severe hypertension, renal/hepatic impairment, angle closure glaucoma)
  • Unstable cardiovascular disorder or uncontrolled hypertension
  • Severe renal/hepatic impairment based on serology evaluation
  • History of seizures, liver failure, central nervous system tumor, central nervous system infection, hypoglycemia, hyponatremia, hypoxia, stroke arteriovenous malformation, head injury
  • Current use of other cessation medication or counseling
  • History of bupropion use
  • Current anti-psychotic, anxiolytic, antidepressant, or psychostimulant medication use, other drugs that may lower seizure threshold, CYP2B6 inhibitors, CYP2B6 inducers, drug metabolized by CYP2D6
  • Sudden stoppage of alcohol, benzodiazepines, barbiturates, or antiepileptic drugs
  • Current (past 30 days) use of illicit or medical use of prescription stimulants
  • Currently or plan to be pregnant or breastfeeding
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
12 participants (actual)

Study arms

  • Active comparator
    BUP-300

    Participants will receive Bupropion hydrochloride for 10 weeks and titrate to a maximum dose of 300 mg/day and will also receive standard smoking cessation counseling for 8 weeks.

    Drug: Bupropion Hydrochloride

  • Experimental
    BUP-450

    Participants will receive Bupropion hydrochloride for 12 weeks and titrate to a maximum dose of 450 mg/day and will also receive standard smoking cessation counseling for 8 weeks.

    Drug: Bupropion Hydrochloride

Interventions

06

What researchers measure

Primary outcomes

  1. Point Prevalence Abstinence (PPA) [change in abstinence reports will be assessed]

    Self report of smoking status

    Time frame: Through study completion, an average of 26 months

Secondary outcomes

  1. Smoking cessation milestones

    Smoking timeline follow back interview

    Time frame: Through study completion, an average of 26 months

  2. Inventory of Depressive and Anxious Symptomology (General depression subscale)

    This measure is obtained through the completion of the Inventory of Depressive and Anxious Symptomology General depression subscale. A total score will be calculated. Scores can range from 4 to 20 with the lower scores representing lower levels of depression and higher scores representing higher levels of depression.

    Time frame: Through study completion, an average of 26 months

  3. Inventory of Depressive and Anxious Symptomology (Social anxiety subscale)

    This measure is obtained through the completion of the Inventory of Depressive and Anxious Symptomology Social anxiety subscale. A total score will be calculated. Scores can range from 4 to 20 with the lower scores representing lower levels of social anxiety and higher scores representing higher levels of social anxiety.

    Time frame: Through study completion, an average of 26 months

  4. Inventory of Depressive and Anxious Symptomology (Traumatic intrusions subscale)

    This measure is obtained through the completion of the Inventory of Depressive and Anxious Symptomology Traumatic intrusions subscale. A total score will be calculated. Scores can range from 4 to 20 with the lower scores representing fewer traumatic intrusions and g scores representing greater traumatic intrusions.

    Time frame: Through study completion, an average of 26 months

  5. Self report scale for Attention deficit/Hyperactivity disorder (ADHD)

    ADHD symptom report

    Time frame: Baseline visit

  6. Snaithe-Hamilton Pleasure Scale (SHAPS)

    Anhedonia scale

    Time frame: Baseline visit and Week 8 post quit date

  7. Objective body weight

    Measured with a medical grade scale

    Time frame: Baseline visit and Week 8 post quit date

  8. Body adiposity via bioimpedence monitor

    Measures body fat percentage/ BMI

    Time frame: Baseline visit and Week 8 post quit date

07

Study locations

1 site
  • University of Southern California
    Los Angeles, California 90033, United States
08

References and documents

Publications

  • Leventhal AM, Kahler CW, Ray LA, Zimmerman M. Refining the depression-nicotine dependence link: patterns of depressive symptoms in psychiatric outpatients with current, past, and no history of nicotine dependence. Addict Behav. 2009 Mar;34(3):297-303. doi: 10.1016/j.addbeh.2008.11.008. Epub 2008 Nov 21. PubMed 19062199 ↗
  • Brown RA, Niaura R, Lloyd-Richardson EE, Strong DR, Kahler CW, Abrantes AM, Abrams D, Miller IW. Bupropion and cognitive-behavioral treatment for depression in smoking cessation. Nicotine Tob Res. 2007 Jul;9(7):721-30. doi: 10.1080/14622200701416955. PubMed 17577801 ↗
  • Fava M, Rush AJ, Thase ME, Clayton A, Stahl SM, Pradko JF, Johnston JA. 15 years of clinical experience with bupropion HCl: from bupropion to bupropion SR to bupropion XL. Prim Care Companion J Clin Psychiatry. 2005;7(3):106-13. doi: 10.4088/pcc.v07n0305. PubMed 16027765 ↗
  • Ameringer KJ, Chou CP, Leventhal AM. Shared versus specific features of psychological symptoms and cigarettes per day: structural relations and mediation by negative- and positive-reinforcement smoking. J Behav Med. 2015 Apr;38(2):224-36. doi: 10.1007/s10865-014-9597-y. Epub 2014 Sep 18. PubMed 25231408 ↗
  • Leventhal AM, Mickens L, Dunton GF, Sussman S, Riggs NR, Pentz MA. Tobacco use moderates the association between major depression and obesity. Health Psychol. 2010 Sep;29(5):521-8. doi: 10.1037/a0020854. PubMed 20836607 ↗
  • Boutelle KN, Monreal T, Strong DR, Amir N. An open trial evaluating an attention bias modification program for overweight adults who binge eat. J Behav Ther Exp Psychiatry. 2016 Sep;52:138-146. doi: 10.1016/j.jbtep.2016.04.005. Epub 2016 Apr 16. PubMed 27116704 ↗
  • Boutelle KN, Braden A, Douglas JM, Rhee KE, Strong D, Rock CL, Wilfley DE, Epstein L, Crow S. Design of the FRESH study: A randomized controlled trial of a parent-only and parent-child family-based treatment for childhood obesity. Contemp Clin Trials. 2015 Nov;45(Pt B):364-370. doi: 10.1016/j.cct.2015.09.007. Epub 2015 Sep 8. PubMed 26358536 ↗
  • Boutelle KN, Liang J, Knatz S, Matheson B, Risbrough V, Strong D, Rhee KE, Craske MG, Zucker N, Bouton ME. Design and implementation of a study evaluating extinction processes to food cues in obese children: the Intervention for Regulations of Cues Trial (iROC). Contemp Clin Trials. 2015 Jan;40:95-104. doi: 10.1016/j.cct.2014.11.011. Epub 2014 Nov 22. PubMed 25461494 ↗
  • Ebbert JO, Hatsukami DK, Croghan IT, Schroeder DR, Allen SS, Hays JT, Hurt RD. Combination varenicline and bupropion SR for tobacco-dependence treatment in cigarette smokers: a randomized trial. JAMA. 2014 Jan 8;311(2):155-63. doi: 10.1001/jama.2013.283185. PubMed 24399554 ↗
  • Leventhal AM, Munafo M, Tidey JW, Sussman S, Monterosso JR, Sun P, Kahler CW. Anhedonia predicts altered processing of happy faces in abstinent cigarette smokers. Psychopharmacology (Berl). 2012 Jul;222(2):343-51. doi: 10.1007/s00213-012-2649-5. Epub 2012 Feb 4. PubMed 22311383 ↗
  • Leventhal AM, Trujillo M, Ameringer KJ, Tidey JW, Sussman S, Kahler CW. Anhedonia and the relative reward value of drug and nondrug reinforcers in cigarette smokers. J Abnorm Psychol. 2014 May;123(2):375-86. doi: 10.1037/a0036384. PubMed 24886011 ↗
  • Leventhal AM, Ameringer KJ, Osborn E, Zvolensky MJ, Langdon KJ. Anxiety and depressive symptoms and affective patterns of tobacco withdrawal. Drug Alcohol Depend. 2013 Dec 1;133(2):324-9. doi: 10.1016/j.drugalcdep.2013.06.015. Epub 2013 Jul 26. PubMed 23896304 ↗

Study documents

  • Protocol and statistical analysis plan · Aug 25, 2017

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 17, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03326128
Responsible party
Adam Leventhal (Associate Professor, University of Southern California) — Principal investigator
First posted
Oct 31, 2017
Start date
Sep 1, 2021
Primary completion
Jul 1, 2023
Completion
Jul 1, 2023
Last update
Jul 17, 2023

Study contacts

Adam M Leventhal, PhD
principal investigator · University of Southern California

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in Jul 2023. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Bupropion

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