| NCT05488743
| Smoking Prevention Program in Poland | No drug interventions | Not Available | Not Available | unknown_status |
| NCT05366790
| A Brief Digital Screening Tool to Address Tobacco and E-cigarette Use in Pediatric Medical Care | No drug interventions | screening | Not Available | completed |
| NCT04919590
| Text Message Quit Vaping Intervention for Adolescents | No drug interventions | treatment | Not Available | completed |
| NCT05431387
| A Study of Cytisinicline for Vaping Cessation in Adult Smokers | | treatment | 2 | completed |
| NCT06291597
| Vaping Adverse Lung and Heart Events Cohort | No drug interventions | Not Available | Not Available | recruiting |
| NCT06164678
| Vaping Cessation Using the Ottawa Model for Smoking Cessation Among E-Cigarette Users | No drug interventions | treatment | Not Available | recruiting |
| NCT05487456
| Reduced HPHC Exposure in Cigarette Smokers Switching to P4M3 Gen. 2.0 Compared to Continuing Smoking, or Smoking Abstinence | No drug interventions | other | Not Available | completed |
| NCT04725656
| Concentration Impact Nicotine Salt | No drug interventions | prevention | Not Available | recruiting |
| NCT05967585
| Implementing an Adolescent and Young Adult (AYA) mHealth Vaping Cessation Program Into Oncology Clinics | No drug interventions | supportive_care | Not Available | recruiting |
| NCT05140915
| Vaper to Vaper: A Multimodal Mobile Peer Driven Intervention to Support Adolescents in Quitting Vaping | No drug interventions | prevention | Not Available | enrolling_by_invitation |
| NCT04450537
| PACE Vape Messaging Study | No drug interventions | prevention | Not Available | completed |
| NCT04340700
| Characterization of the Pharmacodynamic Response to Vaped THC | No drug interventions | basic_science | 3 | withdrawn |
| NCT05897242
| A Smartphone Application (ACT on Vaping) for Vaping Cessation in Young Adults | No drug interventions | prevention | Not Available | completed |
| NCT04899999
| Graphic Messages to Prevent E-Cigarette Use Among Black and Latino Adolescents | No drug interventions | prevention | Not Available | completed |
| NCT04854616
| Cessation of Smoking Trial in the Emergency Department | No drug interventions | treatment | Not Available | completed |
| NCT04054765
| A Virtual Reality Videogame for E-cigarette Prevention in Teens | No drug interventions | prevention | Not Available | completed |
| NCT04399031
| Effects of e-Cigarettes on Perceptions and Behavior - Substudy 1 | | other | Not Available | completed |
| NCT04602494
| Varenicline For Nicotine Vaping Cessation In Non Smoker Vaper Adolescents | | treatment | 4 | terminated |
| NCT06335329
| Point-of-Care Ultrasound (POCUS) Findings and Impact on Vaping | No drug interventions | other | Not Available | recruiting |
| NCT03379740
| Study to Investigate the Nicotine Pharmacokinetic Profiles and Pharmacodynamic Effects of P4M3 Variants | No drug interventions | other | Not Available | completed |
| NCT04053868
| Evaluating the Comparative Pharmacokinetics of Nicotine After Administration Via JUUL or Tobacco Cigarettes | No drug interventions | basic_science | Not Available | completed |
| NCT06308081
| Social Media Anti-Vaping Messages to Reduce ENDS Use Among Sexual and Gender Minority Teens | No drug interventions | prevention | Not Available | recruiting |
| NCT04568395
| Acute Effects of TCIG vs ECIG in PLWH | No drug interventions | basic_science | Not Available | completed |
| NCT05105555
| The e-BILD Study: Effects of E-cigarettes on Lung Health in Teenagers. | No drug interventions | Not Available | Not Available | completed |
| NCT06274723
| Responses to E-cigarette Message Source and Presentation | No drug interventions | health_services_research | Not Available | not_yet_recruiting |
| NCT05383508
| Nicotine Pharmacokinetics Following Use of the P4M3 Gen 2.0 E-Cigarette Compared to Smoking Cigarettes | No drug interventions | other | Not Available | completed |
| NCT04901208
| Acute Effects of Vaping Nicotine on Cognition in Young Adults | | basic_science | Not Available | completed |
| NCT06269003
| Responses to Message Source and Presentation Using Psychophysiology | No drug interventions | health_services_research | Not Available | completed |
| NCT05958979
| Effects of e-Cigarettes on Perceptions and Behavior - Remote Substudy # 1 | No drug interventions | other | Not Available | completed |
| NCT04678245
| Network Intervention to Prevent Vaping | No drug interventions | prevention | Not Available | enrolling_by_invitation |
| NCT06297005
| The Impact of E-cigarettes During Pregnancy on Childhood Health Outcomes Study | No drug interventions | Not Available | Not Available | recruiting |
| NCT04661683
| Secondhand Effects of Hookah (i.e., Waterpipe) Smoke and Aerosol | No drug interventions | other | Not Available | recruiting |
| NCT05999383
| Understanding the Clinical Pharmacology of Marijuana-Tobacco Co-administration | | basic_science | 2 | not_yet_recruiting |
| NCT04707911
| Social Media Intervention to Stop Nicotine and Cannabis Vaping Among Adolescents | No drug interventions | treatment | Not Available | completed |
| NCT05037656
| Testing a School-Based E-cigarette, Tobacco, and Betel (Areca) Nut Use Prevention Curriculum for Guam Youths | No drug interventions | prevention | Not Available | completed |
| NCT06501937
| Influencer Marketing: a Survey-based Experiment Among Adolescents | No drug interventions | other | Not Available | completed |
| NCT04317300
| Feasibility of Treatment for Vaping Cessation | | treatment | 0 | withdrawn |
| NCT05936099
| Adolescent Inpatient Tobacco and ENDS Intervention | No drug interventions | treatment | Not Available | recruiting |
| NCT06003439
| Vaping Prevention and Vaping in Youth (Vapechat) | No drug interventions | prevention | Not Available | completed |
| NCT04879225
| Menthol and Mint Experimental Tobacco Marketplace (ETM) Study | No drug interventions | other | Not Available | completed |
| NCT06433466
| Influencer Marketing: a Survey-based Experiment | No drug interventions | other | Not Available | completed |
| NCT05953220
| Investigating Exposure to Toxicants From Smoking and Vaping | No drug interventions | Not Available | Not Available | not_yet_recruiting |
| NCT05240027
| To Vape or Not to Vape | No drug interventions | other | Not Available | terminated |
| NCT04522362
| Modeling Stress-precipitated Vaping Behavior | No drug interventions | treatment | Not Available | completed |
| NCT05958992
| Effects of e-Cigarettes on Perceptions and Behavior - Remote Substudy # 2 | No drug interventions | other | Not Available | completed |
| NCT05367492
| Varenicline for Nicotine Vaping Cessation in Adolescents | | treatment | 4 | completed |
| NCT05454267
| Early Detection of Vaping-related Vascular Diseases | No drug interventions | Not Available | Not Available | recruiting |
| NCT04150510
| Assessment of Smoking, Vaping, and Alcohol Consumption Behavior | No drug interventions | Not Available | Not Available | completed |
| NCT04645914
| Influence of the Consumption of Conventional and Electric Cigarettes on Skin Circulation | No drug interventions | basic_science | Not Available | unknown_status |
| NCT04836455
| Impact of Vaping Prevention Advertisements | No drug interventions | prevention | Not Available | completed |
| NCT05912023
| Perioperative Vaping Complications | No drug interventions | Not Available | Not Available | active_not_recruiting |