ESTxENDS Trial: MN Substudy - Micronuclei in Buccal Epithelium a Surrogate Measure of Future Cancer Risk Induced by Electronic Nicotine Delivery Systems (ENDS/Vaporizer/E-cig)
-
- STATUS
- Recruiting
-
- End date
- Jun 25, 2023
-
- participants needed
- 1172
-
- sponsor
- University of Bern
Summary
Cigarette smoking is the leading cause of preventable death in Switzerland and still more than a quarter of the Swiss population smokes cigarettes. Recently, electronic nicotine delivery systems (ENDS; also called vaporizer, e-cigarette or electronic cigarette) have become popular with smokers who want to stop smoking or reduce their exposure to inhaled chemicals since ENDS use appears to be safer than tobacco smoking.
The micronucleus cytologic assay test was originally developed to screen for drug toxicity in bone marrow samples from mammals. The technique identifies micronuclei on smears obtained by oral cavity exfoliation and indicate genomic instability. Buccal MNs may predict cancer risk for the upper aerodigestive tract. The HUman MicroNucleus project on eXfoLiated buccal cells (HUMNXL) found MN counts gradually increased during the progression from normal mucosal to precancerous lesions to carcinoma. MN assessment discriminates between exposure to tobacco smoke in smokers and in non-smokers, and has been tested on a small number of ENDS users.
For this trial, cigarette smokers motivated to quit smoking cigarettes will be included. Participants in the intervention group will receive an ENDS and nicotine-containing e-liquids, which they will be allowed to use ad libitum. Additionally, they will receive smoking cessation counseling. Participants in the control group will receive smoking cessation counseling only. All participants will be followed over a 24-month period. Measures of MN frequency will test the potential effect of ENDS use on cancer-related outcomes, in particular incident of mouth-, lung- and kidney- cancers.
Details
| Condition | Smoking Cessation, Micronuclei, smoking cessation therapy |
|---|---|
| Treatment | Smoking Cessation Counseling, ENDS (vaporizer/e-cig) and smoking cessation counseling |
| Clinical Study Identifier | NCT04244773 |
| Sponsor | University of Bern |
| Last Modified on | 25 January 2021 |
How to participate?
,
You have contacted , on
Your message has been sent to the study team at ,
What happens next?
- You can expect the study team to contact you via email or phone in the next few days.
- Sign up as volunteer to help accelerate the development of new treatments and to get notified about similar trials.
Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.
Learn moreIf you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.
Learn moreComplete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.
Learn moreSimilar trials to consider
Browse trials for
Not finding what you're looking for?
Sign up as a volunteer to stay informed
Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.
Sign up as volunteer