An interventional study of Pink Cloud and Active Control in Substance Use, sponsored by Loyola Marymount University. Recruiting at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-09-11.
Sponsored by Loyola Marymount University · Not applicable, Interventional, and Prevention
This randomized controlled trial (RCT) will evaluate the feasibility and efficacy of Pink Cloud, a mobile health application designed to support recovery from substance and alcohol use disorders (SUD/AUD). The app provides access to over 245,000 in-person and virtual 12-Step meetings, along with features such as a sobriety counter, daily planner, and personal inventory tools. In this study, 1,410 participants in various stages of recovery will be randomly assigned to receive either access to the Pink Cloud app or to a control condition. Participants will complete follow-up assessments at 1, 3, and 6 months. Primary outcomes include number of days sober and frequency of drug and alcohol problems. Secondary outcomes include meeting attendance, proportion of sober individuals in one's social network, and engagement in recovery-related activities. The investigators hypothesize that participants in the Pink Cloud group will report more days sober and fewer substance use problems than those in the control group, and that they will also report attending more meetings, having a greater proportion of sober peers, and engaging more frequently in recovery activities.
2,238 studies on the registry are indexed under Substance-Related Disorders; 409 are open to participants now.
This study's planned enrollment of 1,410 is above the median of 108 across 1,840 interventional studies indexed under Substance-Related Disorders.
Browse Substance-Related Disorders studies →Loyola Marymount University is the lead sponsor of 9 studies on the registry; 3 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants in this arm will receive access to a mobile application designed to support ongoing recovery from substance and alcohol use disorders. The app includes tools that promote engagement with 12-Step recovery principles and offer self-monitoring features. Participants can integrate the app into their recovery efforts as they see fit throughout the study period.
Behavioral: Pink Cloud
Participants in this arm will receive access to a website containing curated recovery-related materials. These resources are intended to offer general support for individuals in recovery, without emphasizing any specific program or approach. Participants are free to explore and use the content as they choose.
Behavioral: Active Control
Participants randomized to the Pink Cloud condition will receive a subscription code to access the Pink Cloud mobile application for approximately 365 days. The app includes features such as a searchable database of over 245,000 12-Step meetings (in-person and virtual), a sobriety counter, customizable daily planners, personal inventory tools, and a resentment journal. Participants are encouraged to use the app as they see fit throughout the study period. No prompts or required usage schedules will be imposed; instead, engagement will be self-directed to reflect real-world usage patterns.
Participants randomized to the control condition will receive a code to access recovery-related resources hosted on a private study website. These materials include links to mutual-help groups, crisis support services, and educational content and treatment options. Participants may access the website at their discretion and engage with the resources as often and in whatever ways they choose. No prompts or required usage schedules will be imposed.
Change in sobriety status between baseline and 1 month
Self-reported number of days participant reports not using alcohol or drugs in the past 30 days.
Time frame: baseline, 1 month
Change in sobriety status between baseline and 3 months
Self-reported number of days participant reports not using alcohol or drugs in the past 90 days.
Time frame: baseline, 3 months
Change in sobriety status between baseline and 6 months
Self-reported number of days participant reports not using alcohol or drugs in the past 180 days.
Time frame: baseline, 6 months
Change in alcohol and drug problems between baseline and 1 month
Self-reported frequency of alcohol and drugs problems in the past 30 days.
Time frame: baseline, 1 month
Change in alcohol and drug problems between baseline and 3 months
Self-reported frequency of alcohol and drugs problems in the past 90 days.
Time frame: baseline, 3 months
Change in alcohol and drug problems between baseline and 6 months
Self-reported frequency of alcohol and drugs problems in the past 180 days.
Time frame: baseline, 6 months
Change in meeting attendance between baseline and 1 month
Frequency of 12-Step / peer-to-peer meetings attended in the past 30 days.
Time frame: baseline, 1 month
Change in meeting attendance between baseline and 3 months
Frequency of 12-Step / peer-to-peer meetings attended in the past 90 days.
Time frame: baseline, 3 months
Change in meeting attendance between baseline and 6 months
Frequency of 12-Step / peer-to-peer meetings attended in the past 180 days.
Time frame: baseline, 6 months
Change in social network between baseline and 1 month
Proportion of social network that is sober in the past 30 days.
Time frame: baseline, 1 month
Change in social network between baseline and 3 months
Proportion of social network that is sober in the past 90 days.
Time frame: baseline, 3 months
Change in social network between baseline and 6 months
Proportion of social network that is sober in the past 180 days.
Time frame: baseline, 6 months
Change in recovery related activities between baseline and 1 month
Frequency of engagement with recovery related activities during the past 30 days.
Time frame: baseline, 1 month
Change in recovery related activities between baseline and 3 months
Frequency of engagement with recovery related activities during the past 90 days.
Time frame: baseline, 3 months
Change in recovery related activities between baseline and 6 months
Frequency of engagement with recovery related activities during the past 180 days.
Time frame: baseline, 6 months
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Loyola Marymount University