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A Study to Evaluate the Safety of Electronic Vapor Products for 2 Years

Not Applicable
Completed
Conditions
Healthy Volunteers
Interventions
Device: EVP
Registration Number
NCT02143310
Lead Sponsor
Fontem Ventures BV
Brief Summary

Electronic Vapour Products (EVPs) is a relatively new class of consumer products that are otherwise known as electronic cigarettes devices/systems. These may look like conventional cigarettes but do not contain tobacco.

The 'vapour' produced by such devices typically consists of humectants (propylene glycol or glycerol), nicotine, water, and flavours.

This trial is to evaluate the safety and tolerability of an EVP over two years.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
209
Inclusion Criteria
  • Subject who participated in the EVP G1 S2 study (S2)
  • Willingness to use the EVP provided by the sponsor for two years as the only nicotine containing product
  • No clinically significant abnormalities during the S2 study
Exclusion Criteria
  • Subjects who have used nicotine replacement therapy during the S2 study
  • Subjects with relevant illness history
  • Subjects with history of drug or alcohol abuse
  • Subjects with lung function test or vital signs considered unsuitable Subjects who are trying to stop smoking
  • Female subjects who are pregnant, or unwilling to use acceptable contraceptive method for the duration of the study.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
EVPEVPSubject who use the EVP for up to 2 years
Primary Outcome Measures
NameTimeMethod
Electrocardiogram (ECG): PR Interval24 months

In electrocardiography, the PR interval is the period that extends from the beginning of the P wave (the onset of atrial depolarization) until the beginning of the QRS complex. Variations in the PR interval can be associated with certain medical conditions.

Clinical Laboratory Parameters24 months

High density lipoprotein (HDL) cholesterol, change from baseline (BL)

Lung Function Tests24 months

Forced Vital Capacity (FVC)

Blood Pressure24 months

Sitting systolic blood pressure (mmHg)

Secondary Outcome Measures
NameTimeMethod
Biomarkers of Exposure to Nicotine24 months

The exposure to nicotine was measured by quantifying the change from BL in the amount of nicotine equivalents excreted in urine in 24-hours (AE24h).

Nicotine Withdrawal Symptoms24 Months

Nicotine withdrawal symptoms were measured using the revised Minnesota Nicotine Withdrawal Scale (MWS-R) questionnaire. Extended total scores were used, i.e. the sum of the scores of all 15 questions of the questionnaire. Symptoms (e.g. angry, irritable, frustrated, depressed, restless, insomnia) were rated from 0 (none) to 4 (severe). Extended total scores may range from 0 to a maximum of 60.

Biomarkers of Effect24 months

Change from BL in the level of white blood cells.

Trial Locations

Locations (2)

Simbec Research

🇬🇧

Merthyr Tydfil, Wales, United Kingdom

Covance Clinical Research Unit

🇬🇧

Leeds, England, United Kingdom

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