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Not yet recruitingNCT06517849Updated Apr 16, 2025

Beliefs About Mental Health Treatment - Gambling Addiction Study in Colorado

An interventional study of Monetary Incentive for Take-Up of Cognitive Behavioral Therapy in Gambling Disorder, Gambling Problem and Mental Health Issue, sponsored by Stanford University. Not yet recruiting. Open to participants aged 21 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-04-16.

Sponsored by Stanford University · Not applicable, Interventional, and Other

From the registry’s dates

  • Primary completion was expected by Mar 2026, 8 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
375
Allocation
Randomized
Ages
21 Years and older
Sex
All
01

Study summary

Many people with mental health conditions do not seek treatment, and it is unclear what exactly prevents people from taking up treatment. The goal of this interventional study is to learn about how people think about cognitive behavioral therapy (CBT) for gambling disorders. The main questions it aims to answer are:

  • Do people have incorrect beliefs about the net benefits of CBT? If yes, which beliefs are those, and how much do people underestimate or overestimate the benefits?
  • Is a small monetary incentive (that participants receive conditional on trying out CBT) helpful in increasing take-up of CBT?

Apart from these questions, the researchers will also study how well CBT works to treat gambling disorders.

Participants will be asked to complete two surveys over four months and might be offered a modest monetary incentive for doing (free) CBT if they are in the treatment group. Researchers will compare that treatment group to a control group. Participants in the control group will have access to free CBT and do the same two surveys as those in the treatment group, but will not receive the monetary incentive.

02

Conditions studied

  • Gambling Disorder
  • Gambling Problem
  • Mental Health Issue

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Keywords

  • Beliefs
  • Bias
  • Incentive
03

In context

Gambling

158 studies on the registry are indexed under Gambling; 42 are open to participants now.

This study's planned enrollment of 375 is above the median of 66 across 128 interventional studies indexed under Gambling.

Browse Gambling studies →

Lead sponsor

Stanford University is the lead sponsor of 2,168 studies on the registry; 431 are open to participants now.

Of its 267 completed or terminated interventional studies of FDA-regulated products, 207 (78%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

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.

Inclusion criteria

  • must reside in Colorado
  • must be English-speaking

Exclusion criteria

Exclusion Criteria:

  • does not reside in Colorado
  • is not English-speaking
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Care provider)
Enrollment
375 participants (estimated)

Study arms

  • No intervention
    No Incentive

    The "No Incentive" arm will participate in two surveys-including questions about beliefs about therapy and willingness to pay for therapy, gambling behavior, and well-being-at the baseline and at the end (four months after the first survey). The arm will have access to free cognitive behavioral therapy through Kindbridge Behavioral Health, but will not receive a monetary incentive to undergo therapy.

  • Experimental
    Fixed Incentive

    The "Fixed Incentive" arm will participate in two surveys-including questions about beliefs about therapy and willingness to pay for therapy, gambling behavior, and well-being-at the baseline and at the end (four months after the first survey). The arm will have access to free cognitive behavioral therapy through Kindbridge Behavioral Health and will be offered a modest monetary incentive to undergo therapy. The incentive will be in form of an electronic gift card. The amount of money offered as an incentive will not depend on the participants' survey replies.

    Behavioral: Monetary Incentive for Take-Up of Cognitive Behavioral Therapy

  • Experimental
    Payment According to Multiple Price List Choices

    The "Multiple Price List" arm will participate in two surveys-including questions about beliefs about therapy and willingness to pay for therapy, gambling behavior, and well-being-at the baseline and at the end. The arm will have access to free cognitive behavioral therapy through Kindbridge Behavioral Health and might be offered a modest monetary incentive to undergo therapy. More specifically, for all arms, the surveys will include a multiple price list to gauge willingness to pay for CBT. For this "multiple price list" arm, one of the rows from the multiple price list will be (randomly) picked and implemented. Depending on what the participant answered in the randomly picked row, they will either receive an unconditional payment or a payment conditional on undergoing CBT. In either case, the payment will be in form of an electronic gift card.

    Behavioral: Monetary Incentive for Take-Up of Cognitive Behavioral Therapy

Interventions

  • BehavioralMonetary Incentive for Take-Up of Cognitive Behavioral Therapy

    Both treatment arms will be offered a monetary incentive (in form of a retail gift card) for undergoing a certain number of CBT sessions.

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What researchers measure

Primary outcomes

  1. Change in Willingness to Pay for CBT

    Change in participants' willingness to pay (in USD; elicited through multiple price lists) for CBT from baseline to follow-up survey.

    Time frame: Baseline and 4 months

  2. Change in Beliefs about CBT

    Change in participants' beliefs about therapy (such as effectiveness, unpleasantness, stigma, etc.) will between baseline and follow-up survey (4 months after baseline).

    Time frame: Baseline and 4 months

  3. Attendance of CBT sessions

    Dates and number of CBT sessions participants attend (as long as they are with Kindbridge Behavioral Health) between baseline survey and follow-up survey (afer 4 months).

    Time frame: 4 months

  4. Change in Gambling Consumption

    Amount wagered (in USD) in online and offline gambling by participants over the last month. Difference between stated amount at baseline and stated amount in follow-up survey.

    Time frame: Baseline and 4 months

  5. Change in Subjective Well-Being

    Change in measure of participants' wellbeing from baseline to follow-up (at four months), computed using Likert scale style questions about feeling happy/depressed/satisfied/anxious/etc. Answers are on a seven-point scale from "strongly disagree" through "neutral" to "strongly agree." Points for each question are coded such that more positive answers get more points (so from most negative to most positive, the points -1, -2/3, -1/3, 0, 1/3, 2/3, 1 are awarded) and subjective well-being is the sum of all points.

    Time frame: Baseline and 4 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Jun 2025; primary completion for Mar 2026, 9 months later.

Of 47 non-industry interventional studies with no phase under Gambling, half reached primary completion within 16 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 51. This study's planned 9 months is below that.

Counting every sponsor, half of 47 studies reached it within 16 months; a quarter within 10 and three quarters within 51.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 18, 2024
First posted
Jul 24, 2024
StartEst.
Jun 2025
Primary completionEst.
Mar 2026
CompletionEst.
Mar 2026
Last update
Apr 16, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 16, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06517849
Collaborators
Kindbridge Research Institute
Responsible party
Sarah Bogl (Graduate Student, Stanford University) — Principal investigator
First posted
Jul 24, 2024
Start date
Jun 2025 (estimated)
Primary completion
Mar 2026 (estimated)
Completion
Mar 2026 (estimated)
Last update
Apr 16, 2025

Study contacts

Sarah Bogl
Contact
sbogl@stanford.edu
6504696028
Matt Brown
Contact
mbrown35@stanford.edu
Sarah Bogl
principal investigator · Stanford University
Matt Brown
principal investigator · Stanford University
Mariana Guido
principal investigator · Stanford University
Nick Grasley
principal investigator · Stanford University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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