- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT03102931
Switching to Low Oxidant Content Cigarettes in Adult Smokers
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Researchers at Penn State Hershey are seeking healthy adult cigarette smokers between the ages of 21-65 who smoke at least 10 cigarettes a day for at least one year.
The aim of this study is to evaluate the effect of reduced oxidative/ nitrogen species (ROS/RNS) cigarettes compared to high ROS/RNS cigarettes.
Study participation lasts 8 weeks, with 5 study visits at the Hershey Medical Center. All eligible participants will be given Spectrum research cigarettes, provided free of charge, and will be asked to only smoke those cigarettes for the first four weeks of the study. Following that four-week period of time all participants will be given low ROS content cigarettes (American Spirit Dark Green or Pall Mall Red). Participants will be asked to smoke only these cigarettes for the final four weeks of the study, these cigarettes will also be provided to you free of charge.
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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-
Pennsylvania
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Hershey, Pennsylvania, Forenede Stater, 17033
- Penn State Hershey
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Age 21-65
- Smoke 10 cigarettes per day or more for at least one year
- Read and write in English
- Menthol and nonmenthol smokers
- Able to understand and provide consent to study procedures
- Plan to live in the local area for the next 3 months
- Women not pregnant or nursing and taking steps to avoid pregnancy
- No quit attempt in the last one months and not planning to quit in the next 3 months (ensuring stability of smoking)
Exclusion Criteria:
- Currently pregnant or nursing
- Unstable or significant medical conditions that affect oxidative stress, such as COPD, kidney failure, heart disease, stroke, cancer, tumors, lung or respiratory disease, diabetes, liver disease, autoimmune disorder, rheumatoid arthritis, infectious disease or fibromyalgia.
- Use of non-cigarette nicotine delivery
- History of difficulties providing blood samples: fainting, poor veins, anxiety, etc.
- Current or recent history of substance or alcohol abuse
- No more than seven alcoholic drinks a week, and/ or >two drinks a day
- Use of a high dose antioxidant supplement prior to 1 month
- Currently smoking cigarettes that will be used for the study (Pall Mall Red or American Spirit Dark Green)
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Sundhedstjenesteforskning
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Eksperimentel: Reduced ROS/RNS content products
Participants will be given and asked to smoke research cigarettes for the first 4 weeks.
For the final 4 weeks of the study they will be given and asked to smoke low ROS content cigarettes.
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Participants will be given and asked to spoke only the cigarettes provided for them.
Biosamples and surveys will be collected every 2 weeks throughout the study.
Participants will be given and asked to spoke only the cigarettes provided for them.
Biosamples and surveys will be collected every 2 weeks throughout the study.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Biomarkers of oxidative stress
Tidsramme: 8 weeks
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The primary endpoint is to assess whether levels of oxidative stress/damage increase or decrease when a smoker switches from a high ROS/NOS cigarette product to a low ROS/NOS product.
The biomarkers that will be used to assess oxidative stress include: 8-0HdG, glutathionylated proteins, and urinary F,-isoprostanes cysteine and GSH.
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8 weeks
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Antioxidant and nutrient levels in the blood
Tidsramme: 8 weeks
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Secondary endpoints include measurements of nicotine exposure (urine or plasma cotinine).
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8 weeks
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Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: John Richie, Ph.D, Milton S. Hershey Medical Center
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- STUDY00006759
- 5P50DA036107-02 (U.S. NIH-bevilling/kontrakt)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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