Smoking Cessation Clinical Trial
Official title:
Isradipine Enhancement of Virtual Reality Cue Exposure for Smoking Cessation
The proposed study represents a crucial and important stage in translating basic research to strategies for treating nicotine dependence. The investigation addresses an important public health issue by testing an intervention - informed by basic research - that may lead to a more effective and efficient treatment for smokers. The expected findings should provide initial effect size data for the addition of isradipine to an integrated psychosocial/behavioral and pharmacological smoking cessation intervention for smokers, and thus provide the necessary data for a large-scale follow-up trial.
The current protocol will apply a pharmacologic augmentation strategy informed by basic research in animal models of addiction. Our goal is to evaluate the enhancing effect of isradipine, an FDA-approved calcium channel blocker, on the extinction of craving-a key mechanism of drug relapse after periods of abstinence. To activate craving robustly in human participants, we will use multimodal smoking cues including novel 360° video environments developed for this project and delivered through consumer virtual reality headsets. Adult smokers will take either isradipine or placebo and complete the cue exposure protocol in a double-blind randomized control trial. In order to test the hypothesis that isradipine will enhance retention of craving extinction, participants will repeat cue exposure in a medication-free state 24 h later. The study will be implemented in a primary care setting where adult smokers receive healthcare, and smoking behavior will be tracked throughout the trial with ecological momentary assessment. ;
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