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SmokingNCT02103751

Determination of Biomarkers of Exposure and Biomarkers of Potential Harm in Asian Adult Cigarette Smokers

An observational study of Smoking and Healthy, run by Philip Morris Products S.A. at 1 site in Japan.

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 purpose of this study is to determine biomarkers of exposure to Harmful and Potentially Harmful Constituents (HPHCs) in Cigarette Smoke and cardiovascular-related biomarkers in smokers and non smokers. Read more about this study

Who is it for?
Ages 30 years and olderHealthy volunteers can take part
Conditions the study is for
Smoking, Healthy
How many people
1,069 participants
Where
1 siteJapan
Study dates
Jul 2007to Feb 2008
Phase
Observational
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 30 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Healthy male and female Japanese smokers and non smokers, 30 years of age or older.

Who may be able to join

  • Smokers have smoked commercially available conventional cigarettes (CC)
  • With a minimum consumption of 10 CC per day for the last 5 years

Who cannot join

  • Any prior medical condition or chronic disease
  • Recent infection
  • History of cancer
  • Use of concomitant medication
  • History of alcohol abuse
  • Pregnant women

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • Bio-Iatric Centre, Research Institute for Clinical Pharmacology, Kitasato University

    Tokyo

Other trials in Japan

About this study

Official title: A Multi-center Study to Determine the Levels of Biomarkers of Potential Harm and Biomarkers of Exposure to Cigarette Smoke in Asian Adult Smokers and Non-smokers

The purpose of this study is to determine biomarkers of exposure to Harmful and Potentially Harmful Constituents (HPHCs) in Cigarette Smoke and cardiovascular-related biomarkers in smokers and non smokers.

Read the detailed description

Since Japanese mortality associated with cardiovascular disease (CVD) is lower than that in the USA although Japan is one of the top four tobacco consuming countries, this study aims to determine biomarkers of both level of exposure and CVD-related biological effects in Japanese smokers compared to non-smokers.

Biomarkers of Exposure (BoExp) include 2-naphthylamine (2-NA), 4-aminobiphenyl (4-ABP), 4-(methylnitrosaminoi)-1-(3-pyridil)-1-butanone (NNK), carbon monoxide (CO), nicotine, pyrene and 0-toluidine (o-TOL). CVD-related biomarkers include white blood cell (WBC) count, high sensitivity C-reactive protein (hs-CRP) and homocysteine in plasma; complemented with urinary 8-epi-prostaglandin F2α (8-epi-PGF2α), plasma malondialdehyde (MDA), urinary 11-DTXB2, plasma fibrinogen, high-density lipoprotein-cholesterol, triglycerides, sICAM-1, sVCAM-1 and von Willebrand Factor.

Conditions
Smoking, Healthy
Keywords
biomarkers, HPHCs, CVD, smoking, Smokers, non-smokers
Medical subject headings
Smoking

What is being measured

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

  1. The level of biomarkers of Exposure (BoExp) to HPHCs - present in cigarette smoke - in Asian smokers compared to non smokers

    To measure the level of smoking, at baseline the Fagerstrom nicotine dependence test and urinary cotinine are measured. For measurement of biomarkers of exposure, blood and 24 hour urine sampling are performed at V2.

    Measured: At Visit 2 (up to14 days after Visit 1)

  2. The level of CVD-related biomarkers in Asian smokers compared to non smokers

    Measured: At Visit 2 (up to14 days after Visit 1)

Timeline

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

  1. First posted4 Apr 2014 (estimated)
  2. Study startJul 2007
  3. Primary completionDec 2007
  4. Study completionFeb 2008

Resources

More details

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

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
1,069 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02103751
Sponsor's protocol ID
CS06-01
Status last verified
Nov 2019
First submitted
20 Mar 2014
Last updated
7 Nov 2019
Results posted
No
Data monitoring committee
Yes

Publications

  • Ludicke F, Magnette J, Baker G, Weitkunat R. A Japanese cross-sectional multicentre study of biomarkers associated with cardiovascular disease in smokers and non-smokers. Biomarkers. 2015;20(6-7):411-21. doi: 10.3109/1354750X.2015.1096303.

    PubMed 26616146

Questions about this trial

What is this clinical trial studying?

An observational study of Smoking and Healthy, run by Philip Morris Products S.A. at 1 site in Japan.

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 2 inclusion and 6 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 Japan. 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?

The level of biomarkers of Exposure (BoExp) to HPHCs - present in cigarette smoke - in Asian smokers compared to non smokers (time frame: At Visit 2 (up to14 days after Visit 1)). The study lists 2 primary outcomes in all. 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 NCT02103751, 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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