ClinicalTrials.gg
CompletedNCT06554873Updated Feb 6, 2026

Adaptive Use of Nicotine Substitution to Maintain Smoking Reduction/Abstinence in Nicotine Responders

A Phase 3 interventional study of Nicoderm and Nicorette 4Mg Chewing Gum in Smoking Cessation and Harm Reduction, sponsored by Rose Research Center, LLC. Completed at 2 sites in United States. Open to participants aged 22 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-02-06.

Sponsored by Rose Research Center, LLC · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
150
Allocation
Randomized
Ages
22 Years to 65 Years
Sex
All
01

Study summary

To determine whether smokers who initially respond (within 2 weeks) to nicotine products (including nicotine replacement therapy, e-cigarettes, nicotine pouches) by reducing their smoking by ≥50% can be successfully maintained on use of these noncombustible nicotine alternatives to cigarettes for 6 months, and whether this results in sustained smoking reduction/abstinence.

02

Conditions studied

  • Smoking Cessation
  • Harm Reduction
03

In context

Smoking Cessation

1,581 studies on the registry are indexed under Smoking Cessation; 198 are open to participants now.

This study's enrollment of 150 is close to the median of 164 across 1,423 interventional studies indexed under Smoking Cessation.

Browse Smoking Cessation studies →

Lead sponsor

Rose Research Center, LLC is the lead sponsor of 13 studies on the registry; none are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 3 (38%) have results posted.

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

04

Who can participate

Ages eligible
22 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

  • Healthy, adult smoker of combustible cigarettes.
  • Age 22 to 65 years at time of screening (verified by government issued ID).
  • Smoke cigarettes for ≥12 months prior to screening.
  • Currently smokes at least 10 tobacco cigarettes per day.
  • Screening eCO ≥ 10 ppm.
  • Voluntarily provides consent for participation by signing the form (ICF).
  • Willing and able to comply with study requirements.

Exclusion criteria

Exclusion Criteria:

  • Unable to read, speak or understand English
  • Has a history or presence of medical or psychiatric disease, or any other condition that would in the PI's judgement jeopardize the safety of the participant, impair the participant's ability to comply with study procedures, or impact the validity of the study results.
  • Has used nicotine-containing e-cigarettes (or vapes) or any nicotine replacement therapy (nicotine patch, nicotine gum, nicotine spray, nicotine inhaler, nicotine lozenge) or prescription smoking cessation medications, including, but not limited to, varenicline (Chantix*) or bupropion (Zyban®) within the past 30 days.

If female, participant is pregnant, nursing, or intends to become pregnant during the time period from screening through the end of study.

  • Has participated in a research study about tobacco products or ENDS within the past 30 days.
  • Has participated in a smoking cessation or nicotine switching research study in the past year.
  • Smokes or vapes cannabis more than once a week.
  • Cannabis Use Disorder Identification Test-Revised (CUDIT-R) score of 8 or greater.
  • Heterosexually active participants of (not sterilized by tubal ligation, oophorectomy, hysterectomy, or other surgical methods, or ) that do not agree to practice medically appropriate methods of (or remain abstinent) during the course of the trial. Medically acceptable methods of birth control include: vasectomy, vaginal diaphragm with spermicide, intrauterine device, hormonal birth control (oral, injected, or implanted), condom with spermicide, or sponge with spermicide.
  • Subgroup enrollment is complete.
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
150 participants (actual)

Study arms

  • Experimental
    Nicotine Non-Responders

    Participants that were not successful in reducing their expired carbon monoxide by the end of week 2 will not continue in the study.

    Drug: Nicoderm · Drug: Nicorette 4Mg Chewing Gum · Drug: Nicorette Lozenge Product · Other: NJOY e-cigarette · Other: on!

  • Experimental
    Nicotine Responders - Group 1

    Participants that were successful in reducing their expired carbon monoxide by the end of week 2 will be randomized to continued use of their choice of nicotine products for an additional 10 weeks (12-week total treatment period).

    Drug: Nicoderm · Drug: Nicorette 4Mg Chewing Gum · Drug: Nicorette Lozenge Product · Other: NJOY e-cigarette · Other: on!

  • Experimental
    Nicotine Responders - Group 2

    Participants that were successful in reducing their expired carbon monoxide by the end of week 2 will be randomized to continued use of their choice of nicotine products for an additional 22 weeks (24-week total treatment period).

    Drug: Nicoderm · Drug: Nicorette 4Mg Chewing Gum · Drug: Nicorette Lozenge Product · Other: NJOY e-cigarette · Other: on!

Interventions

  • Depending on responder status and group assignment the maximum amount of time nicotine patches will be used is 24 weeks. The final four weeks of nicotine patch treatment will comprise 2 weeks of 14 mg patches and two weeks of 7 mg patches.

    Also known as: Nicotine Patch

  • 4mg Nicorette gum (flavors - cinnamon surge, fruit chill, and mint); as needed maximum usage 24 weeks.

    Also known as: Nicotine gum

  • 4mg Nicorette mint lozenge; as needed maximum usage 24 weeks.

    Also known as: Nicotine lozenge

  • OtherNJOY e-cigarette

    Each NJOY Classic Tobacco and Menthol pod is pre-filled with 1.9 mL of e-liquid with 5% nicotine (by weight); as needed maximum usage 24 weeks.

  • Otheron!

    4mg on! Nicotine Pouch (flavors - Berry, Mint, and Original); as needed for maximum usage 24 weeks.

    Also known as: Nicotine pouch

06

What researchers measure

Primary outcomes

  1. Smoking abstinence - CO

    To determine whether maintained use of nicotine products can help sustain smoking abstinence rates for early responders. An expired air CO reading of ≤ 5 ppm at 24 weeks.

    Time frame: Week 12 and Week 24

Secondary outcomes

  1. Smoking abstinence - Self report of no smoking

    Percent smoking abstinence at 12 weeks and 24 weeks, defined on an intent-to-treat basis as a self-report of no-smoking for the prior 7 days

    Time frame: Week 12 and Week 24

  2. Reduction in Expired Air CO

    Percent of participants achieving a 50% reduction in expired air CO at 12 weeks and 24 weeks relative to baseline.

    Time frame: Week 12 and Week 24

  3. Usage of Nicotine Products

    Self-reported usage of nicotine products.

    Time frame: Week 1 through Week 24, Week 36

  4. Saliva Cotinine Concentrations

    Saliva cotinine concentrations reflective of nicotine product usage in smoking-abstinent individuals.

    Time frame: Week 12, Week 24, Week 36

07

Study locations

2 sites
  • Rose Research Center
    Charlotte, North Carolina 28262, United States
  • Rose Research Center
    Raleigh, North Carolina 27617, United States
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Aug 2024 to primary completion in Dec 2025, 15 months.

Of 31 phase 3 interventional studies under Smoking Cessation, half reached primary completion within 29 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 60. This study's 15 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 9, 2024
First posted
Aug 15, 2024
StartActual
Aug 29, 2024
Primary completionActual
Dec 9, 2025
CompletionActual
Dec 9, 2025
Last update
Feb 6, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 6, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06554873
Lead sponsor
Rose Research Center, LLC
Collaborators
Global Action to End Smoking
Responsible party
Sponsor
First posted
Aug 15, 2024
Start date
Aug 29, 2024
Primary completion
Dec 9, 2025
Completion
Dec 9, 2025
Last update
Feb 6, 2026

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 completed, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drug tested here: Nicotine Patch

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