Smoking CessationNCT00482690
Analysis of Aldehyde Biomarkers of Exposure and Host Response
A study testing nicotine polacrilex, nicotine transdermal system and nicotine inhaler in people with Smoking Cessation, run by University of Nebraska at 1 site in United States.
Trial summary
Analysis of aldeyde biomarkers of exposure and host response The purpose of this prospective, open-label, clinical trial is to establish the feasibility and validity of exhaled breath condensate (EBC) biomarkers for use in studies designed to evaluate harm reduction strategies of smoking. Read more about this study
- Who is it for?
- Ages 19 years and older
- Conditions the study is for
- Smoking Cessation
- What is being tested?
- nicotine polacrilex, nicotine transdermal system and nicotine inhaler
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 35 participants
- Where
- 1 siteUnited States
- Study dates
- 23 Aug 2005to 9 Sep 2007
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 19 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Smokers of at least 5 pack years;
- Stable smoking habit for 3 months;
- Willing to make a serious quit attempt;
- Able to use nicotine replacement therapy
Who cannot join
- Regular use of anti-inflammatory medication
- Inflammatory lung disease
- Unstable medical condition
Trial locations and contacts
1 site in 1 country.
United States1 site
Unversity of Nebraska Medical Center
Omaha, Nebraska, 68198
About this study
Analysis of aldeyde biomarkers of exposure and host response The purpose of this prospective, open-label, clinical trial is to establish the feasibility and validity of exhaled breath condensate (EBC) biomarkers for use in studies designed to evaluate harm reduction strategies of smoking. This will be accomplished by measuring selected markers in EBC believed related to the pathogenesis of lung disease before and after a smoking cessation intervention.
Read the detailed description
Twenty subjects will be accrued in three groups based on smoking habit: 10-20, 20-30 and >30 cigarettes/day. Eligibility criteria include male and female cigarette smokers ≥19 years of age, who are able to give informed consent, able to exhale into Eco Screen instrument for 15-20 minutes. All must be willing to make a serious quit attempt and be willing to use nicotine replacement therapy.
Subjects will be excluded if any of the following are present: regular use of anti-inflammatory medication; presence of any inflammatory disease of the respiratory tract including moderate or worse COPD (FEV1 < 80% predicted and FEV1/FVC ratio < 0.7). Subjects with normal lung function who meet criteria for diagnosis of chronic bronchitis will be excluded. Subjects with stable medical conditions, excluding inflammatory lung disease, will be permitted to participate, providing anti-inflammatory therapies are not used regularly and providing there has been no change in their clinical status in the two months prior to beginning the study.
Upon entering into the study, subjects will establish a quit date and will be treated with nicotine replacement therapy (NRT) products based on individual preference and will receive smoking cessation counseling. They will then be seen at 12 visits over the course of 25 weeks.
Evaluations will include vital signs, interval smoking history, food frequency questionnaire, exhaled carbon monoxide, blood drawn for chemistry and CBC, peripheral blood harvested and serum aliquoted and saved for future biochemical analysis, urine sample for isoprostane, pregnancy test for females, and exhaled breath condensate. Some visits may also include spirometry with and with out bronchodilators, 24 hour urine collections for NNAL and NNAL-glc quantification, health status assessed using St. George's Respiratory Questionnaire, the Functional Assessment of Chronic Illness Therapy - Fatigue, the Leicester Cough Questionnaire, the Clinical COPD Questionnaire and smoking related symptoms assessed using the Breathlessness, Cough, and Sputum Scale.
- Conditions
- Smoking Cessation
- Being tested
- nicotine polacrilex, nicotine transdermal system, nicotine inhaler
- Keywords
- Smoking cessation, Biomarkers, Aldehydes, Exhaled breath, Harm Reduction, Cigarette smoking, cessation, reduction
- Medical subject headings
- Smoking Cessation, Harm Reduction, Cigarette Smoking
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
nicotine polacrilexDrug
Also called Nicorette, gum, lozenge
nicotine transdermal systemDrug
Also called patch
nicotine inhalerDrug
Also called Nicorette inhaler
| Study group | Role | What they receive |
|---|---|---|
| Nicotine replacement therapy (NRT) | Experimental | open label NRT self comparator design Receives: Drug: nicotine polacrilex; Drug: nicotine transdermal system; Drug: nicotine inhaler |
What is being measured
The primary outcome is the main question the study is designed to answer.
Aldehyde Biomarkers
Aledhydes were assessed in exhaled breath condensate by mass spec and chemical assay.
Measured: Study was terminated at an interim analysis for futility
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Jun 2007 (estimated)
- Study start23 Aug 2005
- Primary completion9 Sep 2007
- Study completion9 Sep 2007
Why it stopped: primary analyses found unfeasible
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Smoking CessationStudies of the same condition, open and under way.
- More trials run by University of NebraskaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 35 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Nebraska
- Sponsor type
- University, hospital or other
- Collaborators
- R.J. Reynolds Tobacco Company
- Responsible party
- Sponsor
- Investigators
- Stephen I Rennard, MD, Principal investigator, University of Nebraska
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00482690
- Sponsor's protocol ID
- 0257-05-FB
- Status last verified
- Aug 2023
- First submitted
- 1 Jun 2007
- Last updated
- 7 Sep 2023
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 7 Sep 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Analysis of Aldehyde Biomarkers of Exposure and Host Response
- ClinicalTrials.gov ID
- NCT00482690
- Acronym / sponsor ID
- 0257-05-FB
- Conditions
- Smoking Cessation
- Keywords
- Smoking cessation, Biomarkers, Aldehydes, Exhaled breath, Harm Reduction, Cigarette smoking, cessation, reduction
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: primary analyses found unfeasible
- Enrolment
- 35 participants (actual)
- Lead sponsor
- University of NebraskaUniversity, hospital or other
- Collaborators
- R.J. Reynolds Tobacco Company
- Study start
- 23 Aug 2005 (actual)
- Primary completion
- 9 Sep 2007 (actual)
- Study completion
- 9 Sep 2007 (actual)
- First posted
- 5 Jun 2007 (estimated)
- Results
- Posted 2 Feb 2023
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Analysis of aldeyde biomarkers of exposure and host response The purpose of this prospective, open-label, clinical trial is to establish the feasibility and validity of exhaled breath condensate (EBC) biomarkers for use in studies designed to evaluate harm reduction strategies of smoking. This will be accomplished by measuring selected markers in EBC believed related to the pathogenesis of lung disease before and after a smoking cessation intervention.
Detailed description
Twenty subjects will be accrued in three groups based on smoking habit: 10-20, 20-30 and >30 cigarettes/day. Eligibility criteria include male and female cigarette smokers ≥19 years of age, who are able to give informed consent, able to exhale into Eco Screen instrument for 15-20 minutes. All must be willing to make a serious quit attempt and be willing to use nicotine replacement therapy.
Subjects will be excluded if any of the following are present: regular use of anti-inflammatory medication; presence of any inflammatory disease of the respiratory tract including moderate or worse COPD (FEV1 < 80% predicted and FEV1/FVC ratio < 0.7). Subjects with normal lung function who meet criteria for diagnosis of chronic bronchitis will be excluded. Subjects with stable medical conditions, excluding inflammatory lung disease, will be permitted to participate, providing anti-inflammatory therapies are not used regularly and providing there has been no change in their clinical status in the two months prior to beginning the study.
Upon entering into the study, subjects will establish a quit date and will be treated with nicotine replacement therapy (NRT) products based on individual preference and will receive smoking cessation counseling. They will then be seen at 12 visits over the course of 25 weeks.
Evaluations will include vital signs, interval smoking history, food frequency questionnaire, exhaled carbon monoxide, blood drawn for chemistry and CBC, peripheral blood harvested and serum aliquoted and saved for future biochemical analysis, urine sample for isoprostane, pregnancy test for females, and exhaled breath condensate. Some visits may also include spirometry with and with out bronchodilators, 24 hour urine collections for NNAL and NNAL-glc quantification, health status assessed using St. George's Respiratory Questionnaire, the Functional Assessment of Chronic Illness Therapy - Fatigue, the Leicester Cough Questionnaire, the Clinical COPD Questionnaire and smoking related symptoms assessed using the Breathlessness, Cough, and Sputum Scale.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Nicotine replacement therapy (NRT) | Experimental | Drug: nicotine polacrilex, Drug: nicotine transdermal system, Drug: nicotine inhaleropen label NRT self comparator design |
Who may qualify
- Ages
- 19 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Smokers of at least 5 pack years;
- Stable smoking habit for 3 months;
- Willing to make a serious quit attempt;
- Able to use nicotine replacement therapy
Key exclusion criteria (3 listed)
- Regular use of anti-inflammatory medication
- Inflammatory lung disease
- Unstable medical condition
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| nicotine polacrilexAlso: Nicorette, gum, lozenge | Drug | Nicotine replacement therapy (NRT) |
| nicotine transdermal systemAlso: patch | Drug | Nicotine replacement therapy (NRT) |
| nicotine inhalerAlso: Nicorette inhaler | Drug | Nicotine replacement therapy (NRT) |
Primary outcome
Aldehyde Biomarkers
Time frame: Study was terminated at an interim analysis for futility
Aledhydes were assessed in exhaled breath condensate by mass spec and chemical assay.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Sep 2023.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Stephen I Rennard, MD principal investigator
University of Nebraska
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing nicotine polacrilex, nicotine transdermal system and nicotine inhaler in people with Smoking Cessation, run by University of Nebraska at 1 site in United States.
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 4 inclusion and 3 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: stopped early, as of the sponsor's last update on 7 Sep 2023. 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 United States. 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?
Yes. Results are posted in the registry (first posted 2 Feb 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Aldehyde Biomarkers (time frame: Study was terminated at an interim analysis for futility). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 Sep 2023.