Brenipatide to help adults who recently quit smoking avoid relapse

A Phase 2, Multicenter, Randomized, Double-Blind Study to Investigate the Efficacy and Safety of Brenipatide Compared With Placebo for Reduction in Risk of Relapse to Cigarette Smoking in Adults (RENEW-Smk-1)

Phase 2 Interventional Eli Lilly and Company · NCT07223840

This trial will see if brenipatide helps adults who recently quit smoking stay off cigarettes better than a placebo.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment222 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorEli Lilly and Company Industry-sponsored
Locations27 sites (Rogers, Arkansas and 26 other locations)
Trial IDNCT07223840 on ClinicalTrials.gov

What this trial studies

This randomized, placebo-controlled Phase 2 trial tests brenipatide in adults who have recently quit smoking to reduce the risk of relapse. Participants receive brenipatide or matching placebo during a 24-week treatment period, with a total participation time of about 34 weeks including screening and an 8-week safety follow-up. The protocol involves up to 17 clinic visits and requires participants to be willing to self-inject the study medication and follow study procedures. The study excludes people with recent substance use disorders (except some mild cases), recent suicidal ideation/behavior, or severe respiratory disease and is sponsored by Eli Lilly at three U.S. research sites.

Who should consider this trial

Good fit: Adults who have recently quit smoking, are motivated to stay quit, can attend clinic visits for about 34 weeks, and are willing and able to self-inject the study medication, without recent substance use disorder or severe respiratory disease, are ideal candidates.

Not a fit: People with recent substance use disorders (other than mild alcohol/cannabis), recent suicidal ideation or behavior, severe chronic respiratory disease, or those unwilling to self-inject or attend multiple visits are unlikely to be eligible or to benefit.

Why it matters

Potential benefit: If successful, brenipatide could help more people maintain smoking abstinence and reduce the chance of returning to cigarettes.

How similar studies have performed: While behavioral programs and some medications can reduce relapse risk, using brenipatide specifically for relapse prevention is a novel approach with limited prior clinical data.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Have recently quit smoking and are motivated to stay quit from smoking
* Are reliable and willing to make themselves available for the duration of the study and attend required study visits and are willing and able to follow study procedures as required, such as self-inject study intervention

Exclusion Criteria:

* Have evidence of any substance use disorder within the past 180 days prior to screening, except mild alcohol use disorder, mild cannabis use disorder, or tobacco use disorder
* Have answered "yes" to either Question 4 or Question 5 on the "Suicidal Ideation" portion of the C-SSRS and the ideation occurred within the past 6 months, or have answered "yes" to any of the suicide-related behaviors on the "Suicidal Behavior" portion of the C-SSRS and the behavior occurred within the past 6 months
* Have severe chronic obstructive pulmonary disease, or any other clinically severe respiratory condition that in the investigator's opinion may pose a risk.
* Have participated in a clinical study and have received active treatment, or unknown if they received active treatment, within 90 days or 5 half-lives (whichever is longer) before screening

Where this trial is running

Rogers, Arkansas and 26 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Smoking
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.