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NCT06986993RecruitingPhase 4

Impact of Semaglutide on Tobacco Use and Related Health Behaviors

Impact of Semaglutide Administration on Tobacco Use Behavior and Related Mechanisms Among Smokers With Obesity

Source: ClinicalTrials.gov · Last updated 27 Aug 2025 · Not updated for over 12 months - ask the site whether it is still open

Brief summary (registry, in English)

This pilot randomized trial will assess the impact of 12 weeks of semaglutide administration (vs placebo) on changes in: (i) tobacco use and related factors (nicotine craving, withdrawal, motivation to quit, etc.) and (ii) biological biomarkers of health (e.g., epigenetics, glucose variability via continuous glucose monitoring \[CGM\], etc.) in adult smokers with obesity (n = 40). We will integrate molecular biology procedures (e.g., epigenetics) to maximize internal validity with real-world smartphone-based ecological momentary assessment (EMA) surveys to maximize external validity

Status (registry)
Recruiting
Phase (registry)
Phase 4
Study type
Interventional
Enrollment
40 (estimated)
First submitted
13 May 2025
Start date
1 Jul 2024
Primary completion date
30 May 2028
Lead sponsor
University of Oklahoma
Diseases
Obesity
NCT number
NCT06986993

What you commit to

  • Study type: Interventional · Phase 4
  • Planned participants: 40
  • From 1 Jul 2024 to the primary completion date, 30 May 2028
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • current use of nicotine replacement therapy or other quit smoking medication;

Other illness

  • Severe psychiatric disturbance precluding successful completion of the study, defined as
    • Ever schizophrenia, schizoaffective disorder, or bipolar disorder (assessed at the screener and again at baseline); b. Psychiatric hospitalization in the past year (assessed at the screener and again at baseline); c. Suicidal ideation in the past month or any past year suicide attempt (assessed at baseline) i. Suicidal ideation determined by the Ask Suicide Screening Questions (ASQ) Question 1-3 ii. Any suicide attempts in the past year (ASQ 4) iii. Suicidal intent and plan (ASQ 5) iv. PHQ-9 score of 20 or higher, indicating severe depression or PHQ-9 score of 15 or higher if participant also indicates worsening of symptoms in the past 3 months.
    • Worsening symptoms of depression or anxiety in the past 3-months (as determined by Medical History Questionnaire).
  • personal or family history of medullary thyroid carcinoma, multiple endocrine neoplasia syndrome, and personal history of pancreatitis, type I or type II diabetes, diabetic retinopathy, or gastroparesis;
  • history of bariatric surgery;
  • History of significant gastrointestinal disorder, including inflammatory bowel disease or gastrointestinal malignancy (celiac disease is accepted if in remission), diverticular disease, severe gastroparesis, diagnosis of mega-rectum or colon, congenital anorectal malformation, or clinically significant rectocele, intestinal or colonic obstruction, or suspected intestinal obstruction, intestinal resection (with an exception for appendectomy, cholecystectomy and inguinal hernia repair), pancreatitis, active biliary disease
  • Any other reason or clinical condition that the investigators judge would interfere with study participation and/or be unsafe for a possible subject.
  • Known or suspected allergy to semaglutide, any of the product components, or any other GLP-1 analogue.

Lab values

  • Current or past 6-month use of a GLP-1 agonist or any other weight-lowering/anti-obesity or glucose-lowering medications. These include (but are not limited to: sulfonylurea, insulin, metformin, thiazolidinediones (TZD), dipeptidyl peptidase-4 (DPP-IV) inhibitors, sodium-glucose cotransporter-2 (SGLT-2) inhibitors, or GLP-1 analogs.
  • Clinical labs out of range/unacceptable:
    • creatinine ≥ 2 mg/dL, eGFR ≤ 60 mL/min/1.73 m2,
    • triglycerides\> 500 mg/dl,
    • ALP \> 4x the upper normal limit,
    • abnormal blood lipase levels,
    • other substantially abnormal clinical lab values as determined by the Study Practitioner
    • A1C 6.5% or higher
    • Glucose \>126 mL fasting or \>200mg/dL random
    • Alanine aminotransferase (ALT) \>3x upper normal limit

Who the study is looking for

  • Aged 18-65;
  • report daily use of \>2 cigarettes per day (CPD), as this is a sufficient threshold for detecting tobacco use disorder, per MPI Oliver's published work57;
  • meet criteria for obesity (BMI ≥30 kg/m2); and
  • no immediate desire to quit tobacco use (using criteria form the clinical practice guidelines for treating tobacco dependence)

Age in the registry: 18 years to 65 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Health Promotion Research Center
Coordinator of this site? Confirm its status
Oklahoma CityUnited StatesRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.