for people ages 18-25 (full criteria)
Healthy Volunteers
healthy people welcome
at San Francisco, California
study started
estimated completion
Principal Investigator
Gary Humfleet
Photo of Gary Humfleet
Gary Humfleet



The 2-year research plan will test the Extended Put It Out Project (POP-6) in a pilot randomized trial (N=168) compared to TSP-6, as well as comparing POP-6 and TSP-6 to the POP-3 and TSP-3 interventions from a previously-conducted trial. Participants will be young adults who smoke, identify as sexual or gender minorities (SGM), and use Facebook. Primary outcome will be biochemically verified 7-day abstinence from smoking at 3 and 6 months. Secondary outcomes will be a quit attempt (y/n), stage of change, and thoughts about tobacco abstinence at 3 and 6 months.


Participants will be randomized to one of two conditions: (1) a 6-month Facebook-delivered intervention addressing tobacco use, tailored to SGM young adults; or (2) a 6-month Facebook intervention targeting tobacco use. Both interventions will include 180 days of Facebook-based messages and activities tailored to participants' readiness to quit smoking.

Assessments will occur at baseline, 3, and 6 months follow-up. Assessments will include measures on smoking, thoughts about abstinence, and SGM identity experiences. All participants who report no past 7-day smoking will be asked to give biochemical verification of smoking status with saliva nicotine test kits that will be mailed to participants.


Tobacco Use Smoking Tobacco Dependence Tobacco Use Disorder Tobacco Use Cessation Tobacco Smoking Smoking Cessation Smoking, Cigarette Smoking, Tobacco Tobacco Gender Identity Minority Sexual Identity Minority Cessation Intervention Young Adults Social Media Internet Cigarette POP-6: TSP-6: The Put It Out Project (POP-6): Tobacco Status Project (TSP-6):


You can join if…

Open to people ages 18-25

  • read English
  • between 18 and 25 years of age
  • indicate they use Facebook "most" (≥ 4) days per week
  • have smoked ≥100 cigarettes in their lives and currently smoke at least 1 cigarette per day on 4 or more days of the week
  • identifies as SGM
  • lives in California

You CAN'T join if...

  • do not read English
  • are not between 18 and 25 years of age
  • indicate they do not use Facebook "most" (≥ 4) days per week
  • have not smoked ≥100 cigarettes in their lives and currently smoke at least 1 cigarette per day on 4 or more days of the week
  • does not identify as SGM
  • does not live in California


  • University of California San Francisco Department of Psychiatry
    San Francisco California 94143 United States

Lead Scientist at UCSF

  • Gary Humfleet
    I am a clinical psychologist and Professor in the Department of Psychiatry at the University of California, San Francisco. In this role I am involved in clinical, research, and training activities. My clinical interests are in individual and group treatment for a variety of mental health issues, including anxiety, depression and addiction.


in progress, not accepting new patients
Start Date
Completion Date
University of California, San Francisco
Study Type
Last Updated