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Multi-Site Trial of Tirzepatide for Smoking Cessation

15 juillet 2026 mis à jour par: University of Southern California

A Multi-Site Trial of Tirzepatide for Smoking Cessation

This multi-site clinical trial will generate data on the efficacy of tirzepatide for smoking cessation and associated outcomes (e.g., post-cessation weight gain) in treatment-seeking people who smoke (PWS) with overweight or obesity. A sample of 300 treatment-seeking people who smoke with body mass index of 25 kg/m2 or greater will be recruited from four geographic sites (University of Southern California, Yale University, University of Chicago, and University of Colorado Anschutz Medical Campus) to participate in a parallel-arm, dose-escalating, placebo-controlled trial. Participants will attend weekly clinic visits to receive subcutaneous tirzepatide or placebo over 16 weeks (Visit Weeks 1-16), followed by follow-up visits at Week 17 and Week 27. Medication will be prescribed according to the standard dose titration schedule for the first 16 weeks of treatment (initial dose: 2.5mg/week; final dose: 10mg/week). All participants will also receive nicotine patches.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Intervention / Traitement

Type d'étude

Interventionnel

Inscription (Estimé)

300

Phase

  • Phase 2

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

  • États-Unis
    • California
      • Los Angeles, California, États-Unis, 90033
        • Recrutement
        • Keck School of Medicine, University of Southern California
        • Contact:
        • Chercheur principal:
          • Christian Hendershot, Ph.D.
    • Colorado
      • Aurora, Colorado, États-Unis, 80045
        • Recrutement
        • University of Colorado Anschutz Medical Campus
        • Chercheur principal:
          • Joseph Schacht, PhD
        • Contact:
    • Connecticut
      • New Haven, Connecticut, États-Unis, 06510
        • Recrutement
        • Yale University School Of Medicine
        • Contact:
        • Chercheur principal:
          • Sherry McKee, PhD
    • Illinois
      • Chicago, Illinois, États-Unis, 60637
        • Recrutement
        • University of Chicago Pritzker School of Medicine
        • Contact:
        • Chercheur principal:
          • Andrea King, PhD

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Non

La description

Inclusion Criteria:

  1. Age 21-65 years
  2. Body mass index ≥ 25kg/m2 at the baseline screening
  3. Reporting ≥10 cigarettes per day, on average, for the past 6 months and > 2 year duration of smoking
  4. Interest in making a long-term cessation attempt within the next 30-60 days
  5. Willingness to receive study medication and standard-of-care smoking cessation supports (nicotine replacement therapy and a smoking cessation app)
  6. Ability to adhere to weekly visits and study procedures over the study period (i.e., no plans to move or travel for extended periods)
  7. Exhaled CO of >5ppm at baseline
  8. Use of an acceptable birth control method for female participants*
  9. Ability to read and communicate in English

Exclusion Criteria:

  1. BMI < 25 kg/m2 at screening
  2. History of diabetes, diabetes-attributable medical conditions, or HbA1c ≥6.5% at baseline
  3. Recent (past 90 days) active suicidal ideation or lifetime history of suicide attempt
  4. Current treatment for psychotic disorders or mood disorders with psychotic features (e.g., schizophrenia, schizoaffective disorder, depression with psychotic features), current treatment for bipolar disorder (with or without psychotic features), or current secondary psychosis due to substance use or another medical condition
  5. Meeting DSM-5 criteria for a current (past 12 months) substance use disorder other than tobacco use disorder, mild or moderate cannabis use disorder, or mild or moderate alcohol use disorder.
  6. Recent (past 30 day) self-report of illicit drug use (excluding cannabis) or non-prescribed opioids; or positive urine screen for illicit drugs. A positive screen for opioids will be allowed if the participant is prescribed an opioid replacement therapy medication and can provide documentation.
  7. Past 30-day initiation of psychiatric medications (e.g., SSRIs) or changes to medication dose
  8. Treatment with tirzepatide or another GLP-1RA medication in the prior 6 months
  9. Current (past month) treatment with other weight loss, diabetes, or smoking cessation medications (varenicline or bupropion; excluding nicotine replacement products)
  10. Severe GI disease (e.g., gastroparesis, ulcerative colitis).
  11. History of gastric bypass surgery or other surgeries of the stomach
  12. Any health condition or treatment/medication that would preclude the use of tirzepatide or NRT, in the opinion of the study physician, including severe cardiovascular disease
  13. History of chronic pancreatitis or acute pancreatitis in the last 6 months
  14. Currently nursing, pregnant, or anticipating pregnancy
  15. History of diabetic retinopathy, proliferative retinopathy, or maculopathy
  16. Elevated serum lipase, amylase, bilirubin, or ALP, ALT, or AST (>5x upper limit of normal range)
  17. History of malignant neoplasms in the last 5 years, except non-melanoma skin cancer
  18. Inability to attend weekly clinic visits as scheduled (i.e., based on travel or work schedule)
  19. Currently enrolled in another clinical study involving an investigational product
  20. Currently living in the same household as someone taking a GLP-1 medication, or living with a current or former participant in the present trial
  21. Planned surgical procedures requiring anesthesia during the planned study medication period
  22. Personal or family history of medullary thyroid cancer
  23. Personal or family history of multiple endocrine neoplasia syndrome type 2 (MEN 2)
  24. Treatment with other weight loss (e.g., phentermine), or FDA-approved, non-NRT smoking cessation therapies (varenicline, bupropion) or FDA-approved AUD medications (naltrexone, acamprosate, disulfiram) or off-label AUD medications (e.g., topiramate) in the past 90 days
  25. Any health condition or treatment/medication that would preclude use of tirzepatide or NRT, in the opinion of the site physicians including thyroid enlargement.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Tripler

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur placebo: Placebo
Autre: Placebo
Participants will receive placebo (saline) injections for Weeks 1-16
Expérimental: Tirzépatide
Médicament: Tirzepatide
Participants will receive tirzepatide (subcutaneous injection) at doses of 2.5mg for Weeks 1-4, 5mg for Weeks 5-8, 7.5mg for Weeks 9-12, and 10mg for Weeks 13-16

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
7-day point prevalence abstinence
Délai: From baseline through 16 weeks of treatment (final assessment at Week 17 visit) and at 6 months after the target quit date (assessed at Week 27 visit)
Biochemically verified abstinence from cigarette smoking
From baseline through 16 weeks of treatment (final assessment at Week 17 visit) and at 6 months after the target quit date (assessed at Week 27 visit)

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Cigarettes per day
Délai: From baseline through 16 weeks of treatment (final assessment at Week 17 visit)
From baseline through 16 weeks of treatment (final assessment at Week 17 visit)
Weekly cigarette craving
Délai: Baseline through 16 weeks of treatment (final assessment at Week 17 visit)
Cigarette craving in the past week will be measured using the craving scale of the Wisconsin Smoking Withdrawal Scale, containing 4 items, each scored on a scale of 1-4. Items are summed to generate a score.
Baseline through 16 weeks of treatment (final assessment at Week 17 visit)

Autres mesures de résultats

Mesure des résultats
Description de la mesure
Délai
Current cigarette craving
Délai: Baseline through 16 weeks of treatment (final assessment at Week 17 visit)
Current cigarette craving will be measured with the Questionnaire on Smoking Urges-Brief, a 10-item scale with items, each scored on a 1-7 scale. Items are summed to generate a total score.
Baseline through 16 weeks of treatment (final assessment at Week 17 visit)
Smoking withdrawal
Délai: Baseline through 16 weeks of treatment (final assessment at Week 17 visit)
Withdrawal symptoms are measured with the Wisconsin Smoking Withdrawal Scale (WSWS). The WSWS includes 28 items, each rated on a scale of 0-4. Items are summed to calculate the scale scores.
Baseline through 16 weeks of treatment (final assessment at Week 17 visit)
Body weight
Délai: Treatment week 1 through treatment week 16 (final assessment at Week 17 visit)
Treatment week 1 through treatment week 16 (final assessment at Week 17 visit)

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

University of Southern California

Collaborateurs

National Institute on Drug Abuse (NIDA)

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

5 juin 2026

Achèvement primaire (Estimé)

1 mars 2028

Achèvement de l'étude (Estimé)

1 septembre 2028

Dates d'inscription aux études

Première soumission

11 mai 2026

Première soumission répondant aux critères de contrôle qualité

18 mai 2026

Première publication (Réel)

22 mai 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

17 juillet 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

15 juillet 2026

Dernière vérification

1 juillet 2026

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • HS-25-00642
  • U01DA064384 (Subvention/contrat des NIH des États-Unis)

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Délai de partage IPD

The protocol and SAP will be made available at or before the completion of the study. Requests for IPD will be reviewed following publication of primary study results.

Critères d'accès au partage IPD

Data will be made available to researchers whose proposed purpose for accessing the data has been approved, and provided a data sharing agreement is in place.

Type d'informations de prise en charge du partage d'IPD

  • PROTOCOLE D'ÉTUDE
  • SÈVE
  • CIF

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Oui

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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