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SmokingNCT00812279

Investigate the Exposure to Selected Smoke Constituents in Smokers Switching to Distillation Based Smoking Article

A study testing Distillation based smoking article (SMAR cigarette), conventional cigarette and smoking cessation in people with Smoking, run by Philip Morris Products S.A. at 1 site in Poland.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The overall purpose of this clinical study conducted in confinement under well-defined conditions is to obtain initial data on the levels of human body exposure to selected smoked constituents of the SMAR cigarette. Read more about this study

Who is it for?
Ages 23 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Smoking
What is being tested?
Distillation based smoking article (SMAR cigarette), conventional cigarette and smoking cessation
Could I receive a placebo?
No, everyone receives an active treatment
How many people
112 participants
Where
1 sitePoland
Study dates
Nov 2008to Feb 2009
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 23 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Caucasian adult smokers (male and female), with acceptable health conditions, aged from 23 to 55 years who usually smoke 10 to 30 non-mentholated conventional cigarettes (with a maximum ISO tar yield of 10 mg) per day, for at least the last 5 consecutive years, will be enrolled in this study.

Who cannot join

  • women of childbearing potential must be excluded if:Subject is pregnant (does not have negative pregnancy tests at screening and at D-2) or breastfeeding/ subject does not agree to use an acceptable method of effective contraception: intrauterine device, intrauterine system, established use of oral/injectable/implantable/ transdermal hormonal methods, barrier methods of contraception (condoms, occlusive caps) with spermicidal foam/gel/film/suppository, vasectomised partner or true abstinence (periodic abstinence and withdrawal are not effective methods) until the end of the safety follow-up period.

Trial locations and contacts

1 site in 1 country.

Poland1 site
  • MTZ Clinical Research Inc.

    Warsaw, 02-106

Other trials in Poland

About this study

Official title: A Controlled, Randomised, Open-label, 3-arm Parallel Single-centre Confinement Study to Investigate Exposure to Selected Smoke Constituents in Smokers Switching From Conventional Cigarettes to SMAR Cigarettes for 5 Days

The overall purpose of this clinical study conducted in confinement under well-defined conditions is to obtain initial data on the levels of human body exposure to selected smoked constituents of the SMAR cigarette.

The main objective of this study is to compare the biomarkers of exposure to cigarette smoke constituents in smokers switching to SMAR and to biomarkers in smokers of conventional cigarettes (CC). The biomarkers of exposure will be measured in blood and urine samples collected from the subjects. Moreover, the biomarkers in subjects smoking conventional or SMAR cigarettes will be compared with those biomarkers in smokers who stop smoking for 5 days. The short term safety of this new product will also be evaluated.

Read the detailed description

This is a controlled, randomised, open-label, 3-arm parallel single centre confinement study to investigate exposure to selected smoke constituents in smokers switching from CC to SMAR for 5 days.

112 eligible subjects will be randomised to the 3 study arms: SMAR, conventional cigarettes (CC) and smoking cessation (SC) in a 2:1:1 ratio.

Following the screening visit (within 4 weeks prior to the day of admission), the study will be run over an 8-day period in a confined environment, consisting of the admission day (D-2), a 2-day baseline period (D-1 and D0), and a 5-day exposure period (D1 to D5). Subjects will be discharged in the morning of D6. From the discharge of the subject, a 7-day safety follow-up period will be carried out (until D13).

Conditions
Smoking
Being tested
Distillation based smoking article (SMAR cigarette), conventional cigarette, smoking cessation
Keywords
Smokers with acceptable health conditions
Medical subject headings
Smoking

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Distillation based smoking article (SMAR cigarette)Other

    Subjects randomised to the SMAR arm will be trained by the site staff on the usage of SMAR and the corresponding lighter prior to smoking the first SMAR. Subjects will be allowed to smoke SMAR without any limit on consumption during the designated smoking times but have to request each SMAR from the site staff when they wish to smoke.

  • conventional cigaretteOther

    Subjects randomised to the CC arm will continue to smoke their preferred CC brand during the exposure period. Subjects will be allowed to smoke without any limit on consumption during the designated smoking times but will have to request each CC from the site staff when they wish to smoke.

  • smoking cessationOther

    Subjects will not be allowed to smoke any cigarettes or to use any other nicotine/tobacco-containing products during the 5 days following randomisation.

Study groups in NCT00812279
Study groupRoleWhat they receive
1. SMARExperimentalSubjects will be allowed to smoke SMAR without any limit on consumption during the designated smoking times.
Receives: Other: Distillation based smoking article (SMAR cigarette)
2 Conventional cigarette (CC)Active comparatorSubjects will be allowed to smoke without any limit on consumption during the designated smoking times.
Receives: Other: conventional cigarette
3. smoking cessation (SC)Active comparatorSubjects will not be allowed to smoke any cigarettes or to use any other nicotine/tobacco-containing products during the 5 days following randomisation.
Receives: Other: smoking cessation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To demonstrate a reduction in the three primary biomarkers of exposure: Carboxyhaemoglobin concentration in blood, Urinary excretion of S-phenylmercapturic acid and urinary excretion of NNAL and NNAL-glucuronides (total NNAL)

    Measured: 5 days

Secondary outcomes (9)
  1. To explore changes from baseline COHb, S-PMA, and total NNAL in the three study arms in the course of the study

    Measured: 5 days

  2. To explore changes from baseline in the three study arms with regard to urinary excretion of biomarkers of exposure to several other smoke constituents.

    Measured: 5 days

  3. To assess urinary excretion of nicotine and its five major nicotine metabolites in the three study arms

    Measured: 5 days

  4. To assess nicotine and cotinine concentrations in plasma in the three study arms To compare levels of all biomarkers of exposure in the SMAR arm to those in the smoking cessation (SC) arm

    Measured: 5 days

  5. To assess the mutagenicity potential in urine at the end of the study in the three study arms

    Measured: 5 days

  6. To monitor blood pressure, pulse rate, electrocardiogram, clinical laboratory parameters (standard clinical biochemistry, standard haematology and urine analysis), and adverse events

    Measured: 5 days

  7. To investigate craving and withdrawal symptoms as well as pulmonary symptoms in all three study arms by means of questionnaires

    Measured: 5 days

  8. To investigate change in cytochrome P450 1A2 (CYP1A2) activity from D0 to D5 in the three study arms

    Measured: 5 days

  9. To assess and compare human smoking topography (HST) in smokers before and after switching to SMAR

    Measured: 5 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Dec 2008 (estimated)
  2. Study startNov 2008
  3. Primary completionFeb 2009
  4. Study completionFeb 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
112 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00812279
Sponsor's protocol ID
YVD-CS01-EU
Status last verified
Nov 2019
First submitted
19 Dec 2008
Last updated
7 Nov 2019
Results posted
No
Data monitoring committee
No

Publications

  • Ludicke F, Haziza C, Weitkunat R, Magnette J. Evaluation of Biomarkers of Exposure in Smokers Switching to a Carbon-Heated Tobacco Product: A Controlled, Randomized, Open-Label 5-Day Exposure Study. Nicotine Tob Res. 2016 Jul;18(7):1606-13. doi: 10.1093/ntr/ntw022. Epub 2016 Jan 27.

    PubMed 26817490

Questions about this trial

What is this clinical trial studying?

A study testing Distillation based smoking article (SMAR cigarette), conventional cigarette and smoking cessation in people with Smoking, run by Philip Morris Products S.A. at 1 site in Poland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Nov 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Poland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To demonstrate a reduction in the three primary biomarkers of exposure: Carboxyhaemoglobin concentration in blood, Urinary excretion of S-phenylmercapturic acid and urinary excretion of NNAL and NNAL-glucuronides (total NNAL) (time frame: 5 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00812279, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Nov 2019.

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