Cigarette Smoking Clinical Trial
Official title:
A Virtual Arm to Stop Smoking. A Comparative Study
The investigators reported in a pilot study presented at last year's Cybertherapy Conference
(Girard & Turcotte, 2007) that using an action-cue exposure strategy in virtual reality
(ACE-VR; crushing virtual cigarettes) might be useful in the treatment of tobacco addiction.
The investigators are pursuing research in this area with a randomized control trial based
on 90 smokers who will receive a brief psychosocial smoking cessation program (25 people are
enrolled so far and we expect to finish the study before the conference). During the first
four weeks of an eight-session psychoeducational and motivational program, all participants
will be immersed in VR. During the immersions in VR, 45 of the participants will use a
virtual arm to catch and crush virtual cigarettes. The other half of the sample will use the
virtual arm to catch virtual fruits (control condition).
The smoking frequency, and abstinence, will be assessed with a daily diary and exhaled
carbon monoxide tests (the CO2 tests will provide an objective confirmation of the
abstinence reported in the diaries). The success the program will be compared based on the
number of subjects who quitted or reduced their smoking frequency. The severity of addiction
will be assessed with two questionnaires, the Fagerstrom and the Horn tests. Craving and
withdrawal effects will be measured with the Minnesota Nicotine Withdrawal Scale (MNWS) and
the Brief Questionnaire of Smoking Urges (QSU-Brief) at the baseline and at the visits from
weeks 1 through 4, 6, 12 and at the end of the program. Before the VR immersion, the
Immersive Tendencies Questionnaire will be administered and after each VR session
participants will fill two questionnaires addressing presence and cybersickness. The
comparative impact of both treatments will be tested with repeated measures ANOVAs (and
planned contrasts) with sufficient power to detect medium effect sizes.
The main goal of our study is show that crushing virtual cigarettes can boost the impact of
a behavioural program dedicated to cigarette addiction.
A detailed description is available, in French, by contacting stephane.bouchard@uqo.ca. ;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
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