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Quitting Smoking (Tobacco Use Disorder) clinical trials in California
12 studies for Quitting Smoking (Tobacco Use Disorder) are looking for participants at sites in California.
Cities in California
Smoking Cessation CM for Veterans With or at Risk for Cancer
- San Francisco VA Medical Center, San Francisco, CA, San Francisco
RecruitingHealthy volunteers welcome
Ages 18 and older · All sexes · Updated Oct 2, 2026 · NCT06432985Varenicline for Smoking Reduction in Veterans Not Ready To Quit
- VA San Diego Healthcare System, San Diego, CA, San Diego
RecruitingPhase 4
Ages 21 and older · All sexes · Updated Aug 31, 2026 · NCT06966362Contingency Management for Veteran Smokers Undergoing Major Elective Surgery
- San Francisco VA Health Care System, San Francisco
Recruiting
Ages 18 and older · All sexes · Updated Aug 11, 2026 · NCT06678672Social Media Support Groups for Adolescent Vaping Cessation
- University of California, San Francisco, San Francisco
RecruitingHealthy volunteers welcome
Ages 13 and older · All sexes · Updated Jul 17, 2026 · NCT07540780Brain/Craving Response to Smoking Cues After Oral Nicotine Pouch Use
- University of Southern California - 3641 Watt Way (HNB B22), Los Angeles
RecruitingHealthy volunteers welcome
Ages 21 to 55 · All sexes · Updated Jul 13, 2026 · NCT07698470Abuse Liability and Appeal of Oral Nicotine Products
- University of Southern California, Los Angeles
- University of Southern California, Los Angeles
RecruitingHealthy volunteers welcome
Ages 21 to 25 · All sexes · Updated Jul 9, 2026 · NCT06506162Comparative Pharmacokinetics and Pharmacodynamics of Synthetic Nicotine
- Zuckerberg San Francisco General Hospital (ZSFG), San Francisco
RecruitingPhase 1Healthy volunteers welcome
Ages 21 to 65 · All sexes · Updated May 14, 2026 · NCT05962229Cannabidiol for Reducing Cigarette Use
- CRI-Help, Inc., North Hollywood
RecruitingPhase 2Mentions payment for participants
Ages 18 to 65 · All sexes · Updated Apr 13, 2026 · NCT06218056Advancing VR-based Attentional Bias as a Biomarker for Tobacco Use Disorder
- University California, San Diego, San Diego
RecruitingEarly phase 1
Ages 22 and older · All sexes · Updated Mar 16, 2026 · NCT06582888Examining the Effects of Cytisinicline on Neural Substrates of Cigarette Cue-reactivity
- University of California Los Angeles, Los Angeles
RecruitingPhase 2
Ages 18 to 65 · All sexes · Updated Dec 3, 2025 · NCT06617312Extended Intervention for Tobacco Use (EXIT) for People Experiencing Homelessness
- University of California, San Francisco, San Francisco
RecruitingPhase 4
Ages 18 and older · All sexes · Updated Nov 21, 2025 · NCT07148232Smoke-free Home Study in Subsidized Housing
- University of California, San Francisco, San Francisco
RecruitingHealthy volunteers welcome
Ages 18 and older · All sexes · Updated Feb 24, 2025 · NCT06170437From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.