Allen Carr's Easyway to Stop Smoking - A randomised clinical trial

Tob Control. 2019 Jul;28(4):414-419. doi: 10.1136/tobaccocontrol-2018-054243. Epub 2018 Oct 25.


Objective: To determine if Allen Carr's Easyway to Stop Smoking (AC) was superior to in a randomised clinical trial (RCT).

Setting: Single centre, open RCT, general population based.

Participants: 300 adult smokers, 18 years plus, minimum 5 cigarettes daily, and English speaking. AC, 151 (females 44.4%) and, 149 (females 45.6%), mean age 44 years. outcomes for all 300 were analysed (intention-to-treat). Recruited through advertisement from July 2015 to February 2016.

Intervention: Randomly assigned to AC (n=151) and (n=149), matched for age, sex and education. Block randomisation, enrolment and follow-up at 1, 3, 6 and 12 months. Primary aim was to determine if AC had higher quit rates than service at 3 months. Secondary aims: quit rates at 1, 6 and 12 months and analysis of associated factors including weight. AC consisted of a 5-hour seminar, in a group setting. is an online portal for smoking cessation.

Results: AC had higher quit rates at 1, 3, 6 and 12 months. AC: 38%, (n=57), 27% (n=40), 23% (n=35), 22% (n=33) vs 20% (n=30), 15% (n=22), 15% (n=23), 11% (n=17), respectively (all p values <0.05). Logistic regression AC vs, OR 2.26 (95% CI 1.22 to 4.21) p value=0.01. Weight gain 3.8 kg in AC vs 1.8 kg in (p value <0.05).

Conclusions: All AC quit rates were superior to, outcomes were comparable with established interventions.

Trial registration number: ISRCTN12951013. Recruitment July 2015-February 2016.

Keywords: Addiction; Cessation; Health Services; Nicotine.

Publication types

  • Research Support, Non-U.S. Gov't