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E-cigarette support for smoking cessation: Identifying the effectiveness of intervention components in an online randomised optimisation experiment

An online randomised experiment to identify effective tailored interventions on flavours, device, nicotine strength, and text message support and brief information to assist smokers to stop smoking using e-cigarettes (TASSE)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN54776958
Enrollment
1184
Registered
2022-10-21
Start date
2020-04-01
Completion date
Unknown
Last updated
2023-10-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Smoking cessation Not Applicable

Interventions

Conditions will be randomised in Qualtrics using the Randomizer function. Randomisation will occur after participants complete the baseline measures and provided their contact details. Thereafter, Qua

Sponsors

Medical Research Council
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Aged 18 years old and over 2. Daily smoker 3. UK resident 4. Fluent in English 5. Interested in quitting smoking 6. Interested in using an EC 7. Currently have access to a mobile phone 8. Able to make an online purchase

Exclusion criteria

Exclusion criteria: 1. Currently using an EC daily (exclusively or as a dual user) 2. Unable or unwilling to be contacted in 3 months' time 3. Any affiliation with the tobacco or EC industries

Design outcomes

Primary

MeasureTime frame
Complete abstinence over the last 4-weeks, measured using survey questions at the 12-week follow-up on an intention-to-treat basis

Secondary

MeasureTime frame
All secondary outcomes will be measured using survey questions at 12 weeks post-randomisation: 1. The proportion of participants who reported complete abstinence from smoking over the previous 7 days 2. The proportion of participants who reported 50% or greater smoking reduction in baseline cigarette consumption 3. Adherence to recommendations measured by asking participants at follow-up, whether they had purchased the device, the nicotine strength and the flavour that was recommended. Participants will be also asked if they had received the email with the information on relative harms, if they had read it and whether they had blocked the text messages (all answers: yes/no).

Countries

England, United Kingdom

Contacts

Public ContactCatherine Kimber
kimberc3@lsbu.ac.uk+44 (0) 207 815 5463

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026