← Trials/Trial dossier/NCT06173778

RecruitingPhase 2

Semaglutide for Post-Smoking Cessation Weight Management

A Randomized Controlled Trial of Once-Weekly Semaglutide for Limiting Post-Smoking Cessation Weight Gain in Adult Smokers With Overweight/Obesity

Asset

Semaglutide

GLP-1 agonist

Listed sites

2

Recruiting sites

2

Enrollment

197

estimated

Study population

Alcohol / substance use, Obesity / overweight

Key I/E criterion

BMI ≥30

Primary endpoint

Body weight, % change

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

NCT IDNCT06173778
Org study IDHSC-MS-23-0485

Timeline

Milestones

Study first posted2023-12-18actual
Study start2024-04-23actual
Last update posted2026-02-11actual
Primary completion2026-07-01estimated
Study completion2026-08-01estimated

Assets

Investigational agents

Study populations

Who this study enrolls

Alcohol / substance useObesity / overweight

Eligibility

Who can enroll

Minimum age18 Years
Maximum age75 Years
SexAll
Healthy volunteersAccepted

Inclusion criteria

Ability to provide informed consent before any study-related activity, willing to comply with al study procedures, and be available for the duration of the study.
Body mass index (BMI) ≥30 kg/m2 or ≥27 kg/m2 with the presence of at least one of the following weight-related comorbidities (treated or untreated): hypertension (unless meets medical exclusion criterion 7), cardiovascular disease (unless meets medical exclusion criterion 6), dyslipidemia, or obstructive sleep apnea
Have been smoking ≥5 cigarettes per day for at least 1 year (prior to screening) and provide positive cotinine test.
Desire to quit smoking (defined as "intend to quit within one month")
Agree (if the participant is female and of child-bearing potential) to use effective contraceptive methods, unless the participant's male partner(s) is surgically sterile (underwent vasectomy).
Women of child-bearing potential must provide negative urine pregnancy tests prior to randomization.
Normal cognitive restraint (assessed as cognitive restraint score of <4 from the Three Factor Eating Habits Questionnaire)
Have a medical history and a brief physical examination demonstrating no clinically significant contraindications for study participation, in the judgment of the Study Physician and the Principal Investigator

Exclusion criteria

Medical Exclusions

Personal or first-degree relative(s) history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN 2).
Acute pancreatitis within the past 6 months prior to screening.
History or presence of chronic pancreatitis.
Type 1 or type 2 Diabetes Mellitus (previously diagnosed or indicated by HbA1C ≥48 mmol/mol (6.5%) as measured by central laboratory at screening).
End stage renal disease (ESRD, previously diagnosed or indicated by estimated glomerular filtration rate (eGFR) value of eGFR < 15 ml/min/1.73 m2 as measured by central laboratory at screening).
Any of the following: myocardial infarction, stroke, hospitalization for unstable angina or transient ischemic attack within the past 60 days prior to screening.
Systolic blood pressure (SBP) >159 mmHg and/or diastolic blood pressure (DBP) >99 mmHg)
History of malignant neoplasms within the past 5 years prior to screening. Basal and squamous cell skin cancer and any carcinoma in-situ are allowed.
Severe gastrointestinal disease (i.e., severe gastroparesis).
Known or suspected hypersensitivity to nicotine/nicotine patches; semaglutide, excipients, or related products.
Women who are currently pregnant, or plan to become pregnant, or lactating, or of childbearing potential and are not using medically accepted forms of contraception.
Have any illness or condition which in the opinion of the Principal Investigator and/or the Study Physician would preclude safe and/or successful completion of the study.

Psychiatric / Substance Use Exclusions

Psychoactive substance abuse or dependence (excluding nicotine dependence) within the past 3 months prior to screening (existing diagnosis or as determined by the structured interview).
Urine drug test positive, before randomization, for any of the following substances:

1. benzodiazepines

2. cocaine

3. opioids

4. amphetamines

5. methamphetamine

6. buprenorphine

7. barbiturates

8. 3,4-methylenedioxy-methamphetamine (MDMA)

9. Tetrahydrocannabinol (THC)

Psychotic or bipolar disorder, or mood disorder with psychotic features; or eating disorder (existing clinical diagnosis or as determined by the structured interview)
Moderate to high risk for suicidality (as determined by the structured interview).

Weight-Related Exclusions

Previously undergone bariatric surgery
Gained/lost ≥4.5 kg over the past 6 months (prior to screening)
Currently enrolled in a behavioral weight management plan
Uncontrolled thyroid disease (the criterion will be assessed at the Study Physician's and the Principal Investigator's discretion)

Smoking-Related Exclusions

-Currently using other combustible (e.g., cigars), other (e.g., chewing tobacco, snuff, snus) or alternative (e.g., electronic cigarettes) tobacco products

Medication-Related Exclusions

Currently using oral or injectable glucose lowering medications
Currently using pharmacotherapy for smoking cessation (NRT, varenicline, or bupropion)
Currently or recently (last 90 days prior to screening) taking medication used for weight management (i.e., orlistat, lorcaserin,vi naltrexone-bupropion, liraglutide, phentermine, topiramate, benzphetamine, diethylpropion, phendimetrazine)
Currently or recently (within the past 14 days prior to screening) taking medication(s) known to impact appetite and/or weight (i.e., corticosteroids, excluding inhaled)

General Exclusions

Current, anticipated, or pending enrollment in another research study during this trial that could potentially affect participant safety and/or the study data/design as determined by the Principal Investigator and/or Study Physician.
Not planning to live in the area for the duration of this trial.
Surgery scheduled for the duration of the trial, except for minor surgical procedures, in opinion of the Principal Investigator and/or the Study Physician.
Unable to communicate (read, write, and speak) fluently in English.

Endpoints (4)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Weight & body composition

4 endpoints
Primary/protocol endpoint

Change in Body Weight Percent

Time frame:Baseline to Week 28

Body weight, % change

percent change from baseline, improvement

Secondary/protocol endpoint

Change in body weight as measured in kilograms (kg)

Time frame:Baseline to Week 28

Body weight, absolute change (kg)

change from baseline, improvement

Secondary/protocol endpoint

Change in body fat mass as measured in kilograms (kg)

Time frame:Baseline to Week 28

Total fat mass

change from baseline, improvement

Secondary/protocol endpoint

Change in waist circumference as measured in centimeters(cm)

Time frame:Baseline to Week 28

Waist circumference, change

change from baseline, improvement

Publications (1)

Bibliography

Records linked to this trial through ClinicalTrials.gov references, PubMed NCT search, and curated study seeds. 'Canonical' marks design/result papers; others are registry references or candidates.

Registry references + supporting bibliography

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 1, 2026
Endpoint classificationDelfa endpoint taxonomy v2 (May 13, 2026)
Results tableno registry results posted yet

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 1, 2026 snapshot.