NCT07175987

Brief Summary

This is a parallel design cohort consumer use study to measure the puffing topography of two HTP devices, with three variants of HTP consumables ("sticks,"), collectively referred to as the study investigational products (Study IP), among a sample of n=198 primary users of combustible cigarettes at a central location testing (CLT) facility in the United Kingdom (UK). Puffing topography at the CLT will be measured using a desktop puffing analyzer device (PA1). In addition to puffing topography measurements at the CLT, a tobacco product perceptions and intentions survey will be used to assess study participants' intent to purchase the Study IP, their risk perceptions, and their intended use behaviors. Participants' demographic characteristics (including age and biological sex), and tobacco- and nicotine-containing products (TNPs) use history will be collected using self-reported questionnaires. Following completion of the CLT, a subset (n=100) of the originally enrolled population will participate in a 5-day home use testing (HUT) period in which they will use the Study IP for 5 days in their everyday environments to assess average daily consumption (ADC) and usage patterns of the Study IP, as well as use of any other TNPs, recorded in a daily survey. On completion of the last day of the HUT, participants will complete a final end of study survey assessing product liking, purchase intent, and intended use behaviors.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
212

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2025

Shorter than P25 for not_applicable

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

First Submitted

Initial submission to the registry

August 29, 2025

Completed
3 days until next milestone

Study Start

First participant enrolled

September 1, 2025

Completed
11 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 12, 2025

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 16, 2025

Completed
9 days until next milestone

Study Completion

Last participant's last visit for all outcomes

September 25, 2025

Completed
Last Updated

December 23, 2025

Status Verified

December 1, 2025

Enrollment Period

11 days

First QC Date

August 29, 2025

Last Update Submit

December 16, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • To measure the puffing topography of primary combustible cigarette smokers when using either of the investigational HTP devices with one of three stick variants during CLT.

    The primary endpoints will be measured in CLT using a desktop PA1. The data will be summarized using the overall mean per study arm (Study IP device) as well as mean per stick variant within arms.

    90 minutes

Secondary Outcomes (4)

  • To determine the average daily consumption of sticks during HUT.

    5 days

  • To assess purchase intent for participants using each of the study products before and after using the products.

    Through study completion

  • To describe subjective characteristics associated with product use, including overall liking

    At study completion

  • To assess risk perceptions before using the products only.

    Baseline

Study Arms (2)

HTP Device (1)

EXPERIMENTAL

Participants will be randomized to one of three stick variants.

Other: RDTH002581Other: RDTH002580Other: RDTH002582

HTP Device (2)

EXPERIMENTAL

Participants will be randomized to one of three stick variants.

Other: RDTH002578Other: RDTH002577Other: RDTH002579

Interventions

Participants assigned to this Study Intervention will use the product in the CLT and HUT portions of the study.

HTP Device (1)

Participants assigned to this Study Intervention will use the product in the CLT and HUT portions of the study.

HTP Device (1)

Participants assigned to this Study Intervention will use the product only in the CLT portion of the study.

HTP Device (2)

Participants assigned to this Study Intervention will use the product in the CLT and HUT portions of the study.

HTP Device (2)

Participants assigned to this Study Intervention will use the product in the CLT and HUT portions of the study.

HTP Device (2)

Participants assigned to this Study Intervention will use the product only in the CLT portion of the study.

HTP Device (1)

Eligibility Criteria

Age21 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Be aged 21-65 years (inclusive)
  • Be self-reported current 'daily users' of at least 5 CPD and have smoked at least 100 cigarettes in their lifetime. ('daily users' defined as have smoked 5 CPD for at least 27 days out of last 30 days)
  • Agree to participate in the study and to abide by the study restrictions and requirements, including the use of the assigned Study IP, as described in the ICF.
  • Agree not to allow any other person to use any product provided to them for use during this study.

You may not qualify if:

  • Women who self-report they are pregnant or breastfeeding or could become pregnant or start breastfeeding in the next three months from the study start date.
  • Women who self-report they are not using adequate methods to prevent pregnancy, which they intend to continue throughout the study.
  • a. Examples of acceptable means of birth control are, but not limited to: i. Surgical sterilization (hysterectomy, bilateral tubal litigation/occlusion, bilateral oophorectomy, bilateral salpingectomy); ii. Established use of oral, implantable, injectable, or transdermal methods of contraception associated with inhibition of ovulation; iii. Physical barrier method (e.g., condom, diaphragm/sponge/cervical cap) with spermicide; iv. Non-hormone releasing intrauterine devices (IUD) or hormone-releasing IUDs (e.g., Mirena or Kyleena); v. Vasectomized partner; vi. Abstinence from heterosexual intercourse (as a lifestyle choice, not just for the purpose of study participation; and vii. Post-menopausal and not on hormone replacement Therapy
  • People who self- report having pacemakers or other embedded electronic medical devices.
  • People who self-report having heart disease, high blood pressure, diabetes, depression, or asthma.
  • People who have ever used HTP.
  • People who self-report currently quitting or planning to quit all nicotine products in the next 3 months.
  • People who self-report having participated in tobacco product research in the past 3 months.
  • People who self-report themselves, or someone in their direct family or close friends, as working in one of the following areas:
  • Advertising
  • Journalism
  • Media
  • Insurance
  • Marketing
  • Market Research
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Channing Hall

Sheffield, United Kingdom

Location

MeSH Terms

Conditions

Cigarette Smoking

Condition Hierarchy (Ancestors)

Tobacco SmokingSmokingBehaviorTobacco Use

Study Officials

  • Melissa Tapia, Ph.D.

    RAI Services Company

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 29, 2025

First Posted

September 16, 2025

Study Start

September 1, 2025

Primary Completion

September 12, 2025

Study Completion

September 25, 2025

Last Updated

December 23, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations