NCT05092919

Brief Summary

This within-subjects study aims to evaluate the subjective rewarding value, the relative reinforcing value, and the absolute reinforcing value of sweet flavored cigarillos across three separate laboratory visits among 86 young adults (ages 18-24 years old) who have previously smoked \> 10 or more cigarillos in their lifetime.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
95

participants targeted

Target at P75+ for early_phase_1

Timeline
Completed

Started Sep 2021

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 14, 2021

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

September 30, 2021

Completed
26 days until next milestone

First Posted

Study publicly available on registry

October 26, 2021

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 28, 2023

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2023

Completed
12 months until next milestone

Results Posted

Study results publicly available

May 17, 2024

Completed
Last Updated

May 17, 2024

Status Verified

April 1, 2024

Enrollment Period

1.5 years

First QC Date

September 30, 2021

Results QC Date

November 2, 2023

Last Update Submit

April 29, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • Subjective Rewarding Value of Cigarillo Flavoring

    Subjective rewarding value of cigarillo flavoring will be measured with the Cigarette Evaluation Scale (CES) adapted for cigarillo use. The CES is an 11 item Likert-format (1=not at all to 7=extremely) self-report instrument with established validity and reliability (α \> .80). The investigators will focus on the sum of the two-item satisfaction subscale ("Was it satisfying?" and "Did it taste good?") to calculate the subjective rewarding value. The minimum possible score is 2 and the maximum is 14. Higher scores denote greater subjective rewarding value. Primary Outcome measured at visit 1.

    Laboratory visit 1 (Day 1, 1.5 hours)

  • Relative Reinforcing Value of Cigarillo Flavoring

    Relative reinforcing value of cigarillo flavoring will be measured with a validated choice paradigm, evaluating the preference for sweet flavored (the cigarillo with the highest rewarding value measured in visit 1) relative to non-flavored cigarillos. The reinforcement schedule in the non-flavored cigarillo remained constant at a fixed ratio FR-25, while the reinforcement schedule for the sweet-flavored cigarillo increased with a progressive ratio schedule of PR-25x over 10 trials. RRVF will be defined by the breakpoint (highest trial completed across 10 trials to earn puffs for sweet flavored versus non-flavored cigarillos). Higher breakpoints indicate a greater relative reinforcing value. Primary Outcome measured at visit 2.

    Laboratory visit 2 (Day 2, 2 hours)

  • Absolute Reinforcing Value of Cigarillo Flavoring

    Absolute reinforcing value of cigarillo flavoring is operationalized as the number of sweet flavored versus non-flavored cigarillo puffs consumed during the ad libitum smoking session. A research assistant will videotape, monitor, and count the number of cigarillo puffs taken during the 90-minute period. The primary comparison is the amount of consumption (puffs) of the sweet flavored (determined at visit 1) versus non-flavored cigarillo. A greater number of puffs indicates a higher absolute reinforcing value. Primary Outcome measured at visit 3.

    Laboratory visit 3 (Day 3, 2.5 hours)

Study Arms (1)

Flavor

OTHER

Either a sweet-flavored or a non-flavored cigarillo

Other: Flavor

Interventions

FlavorOTHER

Sweet flavored vs. non-flavored cigarillos.

Flavor

Eligibility Criteria

Age18 Years - 24 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Able to communicate fluently in English (i.e. speaking, writing, and reading).
  • Male and female young adults who are between 18 and 24 years of age who have used \> 10 cigarillos in their lifetime.
  • Not currently undergoing smoking cessation treatment or planning to quit smoking cigarettes within the next 30 days.
  • Plan to live in the area for the duration of the study.
  • Willing to use study-provided cigarillos during three laboratory visits.
  • Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the combined consent and HIPAA form.

You may not qualify if:

  • Smoking Behavior
  • Use of less than 10 cigarillos in lifetime
  • Current enrollment or plans to enroll in a tobacco cessation program over the duration of the study.
  • Current use of nicotine replacement therapy or other smoking cessation medication.
  • Alcohol and Drug
  • History of substance abuse (other than nicotine dependence) in the past 12 months and/or currently receiving medical treatment for substance abuse. Counseling and support groups (e.g. Alcoholics Anonymous and Narcotics Anonymous) will not be considered medical treatment for the purposes of this protocol.
  • Current alcohol consumption that exceeds 25 standard drinks/week.
  • Breath alcohol reading (BrAC) greater than .000 at Laboratory Visit 1.
  • Use of e-cigarettes on \>5 days in the past 30 days.
  • Medical
  • Women, including all individuals assigned as "female" at birth, who are pregnant, breast feeding, or planning a pregnancy over the duration of the study period.
  • Serious or unstable disease within the past year (e.g. cancer, heart disease). Applicable conditions will be evaluated on a case-by-case basis by the Principal Investigator.
  • Psychiatric
  • Lifetime history of schizophrenia or psychosis
  • Lifetime history of a suicide attempt.
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

Location

Related Publications (1)

  • Audrain-McGovern J, Manikandan D, Koita F, Klapec O, Pickworth WB, Stone MD. Effect of sweet flavouring on the rewarding and reinforcing value of cigarillo use among young adults. Tob Control. 2025 May 15;34(3):294-301. doi: 10.1136/tc-2023-058307.

MeSH Terms

Conditions

Tobacco UseCigar Smoking

Interventions

Flavoring Agents

Condition Hierarchy (Ancestors)

BehaviorTobacco SmokingSmoking

Intervention Hierarchy (Ancestors)

Pharmaceutic AidsPharmaceutical PreparationsFood AdditivesFood IngredientsSpecialty Uses of ChemicalsChemical Actions and UsesFoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Results Point of Contact

Title
Janet Audrain-McGovern, Ph.D. Director, Addictions, Department of Psychiatry
Organization
Perelman School of Medicine, University of Pennsylvania

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

September 30, 2021

First Posted

October 26, 2021

Study Start

September 14, 2021

Primary Completion

February 28, 2023

Study Completion

May 31, 2023

Last Updated

May 17, 2024

Results First Posted

May 17, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will share

Locations