The proposed research will characterize withdrawal among people with schizophrenia who vape daily compared to people with schizophrenia who smoke combustible cigarettes daily, filling critical gaps in the understanding of electronic nicotine delivery systems (ENDS) dependence and contributing to the development of vaping cessation interventions amongst people with schizophrenia, the leading preventable cause of death in the US.
Age range
21 Years – 50 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Wisconsin Smoking Withdrawal Scale - anger 0.5
Timeframe: 0.5 hours
Wisconsin Smoking Withdrawal Scale - anger 2.5
Timeframe: 2.5 hours
Wisconsin Smoking Withdrawal Scale - anxiety 0.5
Timeframe: 0.5 hours
Wisconsin Smoking Withdrawal Scale - anxiety 2.5
Timeframe: 2.5 hours
Wisconsin Smoking Withdrawal Scale - sad 0.5
Timeframe: 0.5 hours
Wisconsin Smoking Withdrawal Scale - sad 2.5
Timeframe: 2.5 hours
Wisconsin Smoking Withdrawal Scale - conc 0.5
Timeframe: 0.5 hours
Wisconsin Smoking Withdrawal Scale - conc 2.5
Timeframe: 2.5 hours
Wisconsin Smoking Withdrawal Scale - sleep 0.5
Timeframe: 0.5 hours
Wisconsin Smoking Withdrawal Scale - sleep 2.5
Timeframe: 2.5 hours
Wisconsin Smoking Withdrawal Scale - appetite 0.5
Timeframe: 0.5 hours
Wisconsin Smoking Withdrawal Scale - appetite 2.5
Timeframe: 2.5 hours
Mood and Physical Symptoms Scale 0.5
Timeframe: 0.5 hours
Mood and Physical Symptoms Scale 2.5
Timeframe: 2.5 hours
Minnesota Nicotine Withdrawal Scale 0.5
Timeframe: 0.5 hours
Minnesota Nicotine Withdrawal Scale 2.5
Timeframe: 2.5 hours
Positive and Negative Affect Scale NA 0.5
Timeframe: 0.5 hours
Positive and Negative Affect Scale PA 2.5
Timeframe: 2.5 hours
Positive and Negative Affect Scale PA 0.5
Timeframe: 0.5 hours
Positive and Negative Affect Scale NA 2.5
Timeframe: 2.5 hours
Snaith-Hamilton Pleasure Scale 0.5
Timeframe: 0.5
Snaith-Hamilton Pleasure Scale 2.5
Timeframe: 2.5 hours
Questionnaire on Vaping Craving 0.5
Timeframe: 0.5 hours
Questionnaire on Vaping Craving 2.5
Timeframe: 2.5 hours
Questionnaire on Smoking Urges - Brief 0.5
Timeframe: 0.5
Questionnaire on Smoking Urges - Brief 2.5
Timeframe: 2.5
PhenX Toolkit Insomnia Severity Index 0.5
Timeframe: 0.5
PhenX Toolkit Insomnia Severity Index 2.5
Timeframe: 2.5 hours
Restlessness ratings 0.5
Timeframe: 0.5
Restlessness ratings 2.5
Timeframe: 2.5 hours
Restlessness and Agitation Questionnaire 2.5
Timeframe: 2.5 hours
Restlessness and Agitation Questionnaire 0.5
Timeframe: 0.5 hours
Identical Pairs Continuous Performance Task
Timeframe: Lab visits: ~2 hours
n-back working memory task
Timeframe: Lab visit ~ 2hours
Stop signal reaction time task
Timeframe: Lab visits: ~2 hours
Spatial Delayed Response Task
Timeframe: 2 hours
kcal consumed
Timeframe: 3 hours
Hypothetical Commodity Purchase Tasks vaping intensity 0.5
Timeframe: 0.5 hours
Hypothetical Commodity Purchase Tasks vaping intensity 2.5
Timeframe: 2.5 hours
Hypothetical Commodity Purchase Tasks vaping persistence 0.5
Timeframe: 0.5 hours
Hypothetical Commodity Purchase Tasks vaping persistence 2.5
Timeframe: 2.5 hours
Hypothetical Commodity Purchase Tasks smoking intensity 0.5
Timeframe: 0.5 hours
Hypothetical Commodity Purchase Tasks smoking intensity 2.5
Timeframe: 2.5 hours
Hypothetical Commodity Purchase Tasks smoking persistence 0.5
Timeframe: 0.5 hours
Hypothetical Commodity Purchase Tasks smoking persistence 2.5
Timeframe: 2.5 hours
Positive and Negative Syndrome Scale positive 3
Timeframe: 3 hours
Positive and Negative Syndrome Scale negative 3
Timeframe: 3 hours
Positive and Negative Syndrome Scale general 3
Timeframe: 3 hours