此页面是自动翻译的，不保证翻译的准确性。请参阅 英文版 对于源文本。

评估吸烟者转用不同装置变体THS/TP18时的有害和潜在有害成分暴露情况

2026年11月5日 更新者：Philip Morris Products S.A.

一项随机、对照、开放标签、6组平行设计的临床研究，旨在评估成年吸烟者从传统卷烟（CIG）转换为使用不同设备变体的烟草加热系统（THS/TP18）时，对卷烟烟雾中选定有害及潜在有害成分（HPHC）的暴露情况，并与继续吸食传统卷烟的情况进行比较

This is a randomized, controlled, open-label, 6 parallel arms study to assess reduced exposure of biomarkers of exposure (BoE) of selected HPHC in smokers switching to TP18 (a prototype heated tobacco device) or THS relative to smokers who continue smoking CIG after 5 days of confinement period, followed by 2 days of pharmacokinetic (PK) period of single use of THS/TP18 and CIG, and followed by an ambulatory period.

研究概览

地位

主动，不招人

条件

干预/治疗

详细说明

This randomized, controlled, open-label study comprises six parallel arms and is designed to evaluate reductions in biomarkers of exposure (BoE) to selected HPHCs in adult smokers switching toTP18 (a prototype heated tobacco device with four variants: THS1, THS2, THS3, THS4) or THS5 relative to smokers who continue smoking CIG after 5 days of confinement period followed by 2 days of pharmacokinetic (PK) period of single use of THS/TP18 and CIG, and followed by an ambulatory period.

During the 5-day confinement period, participants will be randomized to use only their assigned product and will operate their assigned devices (THS1, THS2, THS3, THS4, or THS5) with their corresponding sticks or continue smoking CIG ad libitum (6 arms in total).

In the subsequent 2-day PK period, they will complete a four-way single-product crossover using THS/TP18 and CIG, according to randomized product sequences. Participants randomized to the CIG arm at Baseline will not participate in this period.

During the ambulatory period, participants randomized to one of the TP18 versions at Baseline will be free to choose and use any TP18 variant at any time, ad libitum. Participants randomized at Baseline to TP18 will continue using THS ad libitum. Participants randomized to the CIG arm will only be smoking cigarettes, ad libitum.

研究类型

介入性

注册 (实际的)

108

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

  • 英国
      • Belfast、英国、BT9 6AD
        • Celerion

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

21年 至 65年 (成人、年长者)

接受健康志愿者

是的

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Participant has signed the ICF and understands the information provided in it.
  • Participant is male or female and between 21 and 65 years old (inclusive).
  • Participant has been a smoker for at least 2 years prior to the screening visit and is willing to switch to THS and TP18.
  • Participant has smoked on average ≥10 commercially available CIGs/day over the last 30 days. Smoking status will be verified based on a urinary cotinine test (cotinine ≥200 ng/mL).
  • Participant does not plan to quit smoking within the next three months.
  • Participant is available for the entire study period and willing to comply with the study procedures, including product use assignments and periods of abstinence from any nicotine/tobacco-containing products, and willing to adhere to a standardized diet (during confinement period and during overnight stays on Day 30 and Day 60).

Exclusion Criteria:

  • As per the Investigator's judgment, the participant cannot participate in the study for any reason other than medical (e.g., psychological, social reason).
  • Participant is legally incompetent, or physically or mentally incapable of giving consent (e.g., in emergency situations, under guardianship, prisoners).
  • Participant has a health condition which requires medication or any other clinically relevant finding based on available assessments from the Screening period (e.g., safety panel, pulmonary function test, vital signs, physical examination, ECG, and medical history), as determined by the Principal Investigator or designee.
  • Participant experienced within 30 days prior to screening/admission a body temperature >37.9°C or an acute illness (e.g., upper respiratory-tract infection, viral infection, etc.).
  • According to the Investigator's judgment, the participant has medical conditions that require or will require medical intervention (e.g., initiation of treatment, surgery, hospitalization) during the study period, which may interfere with study participation and/or study results.
  • Participant uses medication that aids in smoking cessation.
  • Participant experiences difficulty with venipuncture and/or poor venous access.
  • Participant has a hemoglobin level < 11.0 g/dL for females and < 12.0 g/dL for males at the Screening visit.
  • Participant has a positive nitrite urinary test at screening or on admission day (Day -2)
  • Participant has donated blood or received whole blood or blood products within the past 3 months.
  • BMI < 18.5 kg/m2 or ≥ 32.0 kg/m2.
  • Positive serology test for HIV 1/2, HBV, or HCVa.
  • Participant has a positive alcohol breath test and/or has a history of alcohol disorder that could interfere with their participation in the study.
  • The participant has a positive urine drug test.
  • Participant or one of their family members is a current or former employee of the tobacco industry, manufacturing or distributing e-cigarettes or other nicotine/tobacco-containing products.
  • A participant or a family member is an employee of the investigational site or of any other parties involved in the study.
  • Participant has participated in another clinical study within 30 days or within a period equivalent to five half-lives of the investigational product from that study, whichever is longer. .
  • Participant has been previously screened or enrolled in this study (unless they are alternate subjects).
  • Female participant is pregnant (does not have negative pregnancy tests at screening and/or at admission) or is breastfeeding.
  • For women of childbearing potential only and males: participant does not agree to use an acceptable method of effective contraception.

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：基础科学
  • 分配：随机化
  • 介入模型：并行分配
  • 屏蔽：无（打开标签）

武器和干预

参与者组/臂
干预/治疗
其他：THS1

During the confinement period, participants will use only their assigned product THS 1 (with the corresponding sticks) ad libitum. During the PK period, they will complete a four-way single-product crossover using THS/TP18 and CIG, according to randomized product sequences. During the ambulatory period, they may choose any variant (THS1, THS2, THS3, or THS4) at any time, ad libitum.
其他：THS1 (TP18 variant 1)

TP18 prototype variant "1" (THS1) and associated tobacco sticks. The Sponsor will supply two types of sticks: regular (tobacco flavor) and non-characterizing menthol flavor. Participants can choose either or both variants.
其他：THS2

During the confinement period, participants will use only their assigned product THS 2 (with the corresponding sticks) ad libitum. During the PK period, they will complete a four-way single-product crossover using THS/TP18 and CIG, according to randomized product sequences. During the ambulatory period, they may choose any variant (THS1, THS2, THS3, or THS4) at any time, ad libitum.
其他：THS2 (TP18 variant 2)

TP18 prototype variant "2" (THS2) and associated tobacco sticks. The Sponsor will supply two types of sticks: regular (tobacco flavor) and non-characterizing menthol flavor. Participants can choose either or both variants.
其他：THS3

During the confinement period, participants will use only their assigned product THS 3 (with the corresponding sticks) ad libitum. During the PK period, they will complete a four-way single-product crossover using THS/TP18 and CIG, according to randomized product sequences. During the ambulatory period, they may choose any variant (THS1, THS2, THS3, or THS4) at any time, ad libitum.
其他：THS3 (TP18 variant 3)

TP18 prototype variant "3" (THS3) and associated tobacco sticks. The Sponsor will supply two types of sticks: regular (tobacco flavor) and non-characterizing menthol flavor. Participants can choose either or both variants.
其他：THS4

During the confinement period, participants will use only their assigned product THS 4 (with the corresponding sticks) ad libitum. During the PK period, they will complete a four-way single-product crossover using THS/TP18 and CIG, according to randomized product sequences. During the ambulatory period, they may choose any variant (THS1, THS2, THS3, or THS4) at any time, ad libitum.
其他：THS4 (TP18 variant 4)

TP18 prototype variant "4" (THS4) and associated tobacco sticks. The Sponsor will supply two types of sticks: regular (tobacco flavor) and non-characterizing menthol flavor. Participants can choose either or both variants.
其他：THS5

During the confinement period, participants will use only their assigned product THS 5 (with the corresponding sticks) ad libitum. During the PK period, they will complete a four-way single-product crossover using THS/TP18 and CIG, according to randomized product sequences. During the ambulatory period, they will be continue to use THS5 ad libitum.
其他：THS5 (THS 3.0 reference device)

THS 3.0 device (reference) and the corresponding tobacco sticks will be provided by the Sponsor. There are two variants of the sticks: regular (tobacco flavor) and non-characterizing menthol flavor. Participants may choose either variant or both.
其他：CIG

During the confinement period, participants will use only their usual brand of commercially available CIG ad libitum.

This arm will not participate in the PK period and will move directly to the ambulatory period. During the ambulatory period, participants will smoke only cigarettes, ad libitum.
其他：CIG (Cigarette)

Current cigarette smokers will use their usual brand of commercially available CIG.

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
3-hydroxypropyl mercapturic acid (3-HPMA) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of 3-HPMA measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
2-cyanoethyl mercapturic acid N-acetyl-S-(2-cyanoethyl)-L-cysteine (2-CyEMA) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of 2-CyEMA measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
Monohydroxybutenyl mercapturic acid (MHBMA) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of MHBMA measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
Total N-nitrosonornicotine (total NNN) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of total NNN measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
Total 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (total NNAL) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of total NNAL measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
Carboxyhemoglobin (COHb) in Blood (confinement period)
大体时间：Measured from Day -1 to Day 5.

Carboxyhemoglobin (COHb) is assayed from whole blood and expressed as percentage of the total hemoglobin saturated with carbon monoxide.
Measured from Day -1 to Day 5.

次要结果测量

结果测量
措施说明
大体时间
S-phenylmercapturic acid (S-PMA) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of S-PMA measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
2-hydroxyethylmercapturic acid (2-HEMA) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of 2-HEMA measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
3-hydroxy-1-methylpropylmercapturic acid (3-HMPMA) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of 3-HMPMA measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
Total 3-hydroxybenzo(a)pyrene (3-OH-B[a]P) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of 3-OH-B[a]P measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
4-aminobiphenyl (4-ABP) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of 4-ABP measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.
2-aminonaphtalene (2-NA) in Urine (confinement period)
大体时间：Measured from Day -1 to Day 5.

Concentrations of 2-NA measured in 24-hour urine and expressed as concentration adjusted for creatinine.
Measured from Day -1 to Day 5.

其他结果措施

结果测量
措施说明
大体时间
Plasma nicotine concentrations [C0h] to [C6h] (pharmacokinetic period)
大体时间：Measured from Day 6 to Day 7.

To measure the background-corrected plasma nicotine concentrations (C0h) to (C12h)
Measured from Day 6 to Day 7.
Maximum plasma nicotine concentration [Cmax] (pharmacokinetic period)
大体时间：Measured from Day 6 to Day 7.

To measure the background-corrected maximum plasma nicotine concentration [Cmax]
Measured from Day 6 to Day 7.
Area under the plasma nicotine concentration-time curve (pharmacokinetic period)
大体时间：Measured from Day 6 to Day 7.

To measure the area under the background-corrected plasma nicotine concentration-time curve (AUC) from the start of product use (T0) to the timepoint of last quantifiable concentration [AUC0-last] and extrapolated to infinity [AUC0-infinity]
Measured from Day 6 to Day 7.
Maximum concentration [Tmax] (pharmacokinetic period)
大体时间：Measured from Day 6 to Day 7.

To measure the time to the background-corrected maximum concentration [Tmax]
Measured from Day 6 to Day 7.
3-hydroxypropyl mercapturic acid (3-HPMA) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of 3-HPMA measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
2-cyanoethyl mercapturic acid N-acetyl-S-(2- cyanoethyl)-L-cysteine (2-CyEMA) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of 2-CyEMA measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
Monohydroxybutenyl mercapturic acid (MHBMA) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of MHBMA measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
Total N-nitrosonornicotine (total NNN) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of total NNN measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
Total 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of total NNAL measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
Carboxyhemoglobin (COHb) in Blood (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Carboxyhemoglobin (COHb) is assayed from whole blood and expressed as percentage of the total hemoglobin saturated with carbon monoxide.
Measured on Day 30 and Day 60.
S-phenylmercapturic acid (S-PMA) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of S-PMA measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
2-hydroxyethylmercapturic acid (2-HEMA) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of 2-HEMA measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
3-hydroxy-1-methylpropylmercapturic acid (3-HMPMA) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of 3-HMPMA measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
Total 3-hydroxybenzo(a)pyrene (3-OH-B[a]P) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of 3-OH-B[a]P measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
4-aminobiphenyl (4-ABP) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of 4-ABP measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.
2-aminonaphtalene (2-NA) in Urine (ambulatory period)
大体时间：Measured on Day 30 and Day 60.

Concentrations of 2-NA measured in spot urine and expressed as concentration adjusted for creatinine.
Measured on Day 30 and Day 60.

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Philip Morris Products S.A.

调查人员

  • 学习椅：Christelle Haziza, PhD、Philip Morris Products S.A.

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2026年2月19日

初级完成 (实际的)

2026年7月29日

研究完成 (估计的)

2026年12月18日

研究注册日期

首次提交

2026年2月25日

首先提交符合 QC 标准的

2026年2月25日

首次发布 (实际的)

2026年3月2日

研究记录更新

最后更新发布 (实际的)

2026年11月6日

上次提交的符合 QC 标准的更新

2026年11月5日

最后验证

2026年11月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • P1-REX_PK-22

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

订阅