NCT06883773

Brief Summary

Attrition and user engagement are two challenges that eHealth interventions struggle with. Attempts to address this have been previously made through gamification, instructional design and using different types of incentives. Overall, any type of reward, be it non-financial or monetary is better than the controls, but the latter usually produce a greater effect. It is also worth mentioning that having an affective value attached to the reward itself is also important to user retention and engagement. Given the ever-increasing interest in cryptocurrency and its current relevance, the present study - a randomized clinical trial with three arms - aims to compare cryptocurrency to non-monetary rewards regarding their effectiveness in reducing attrition and increasing engagement. In order to do this, a mental-health computerized intervention will be developed, in which the users will have to complete several modules, during which time they will be rewarded either with cryptocurrency, sweepstake rewards (e.g., vouchers), or nothing.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
177

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Mar 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 24, 2025

Completed
19 days until next milestone

Study Start

First participant enrolled

March 15, 2025

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 19, 2025

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 15, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2025

Completed
Last Updated

March 19, 2025

Status Verified

March 1, 2025

Enrollment Period

3 months

First QC Date

February 24, 2025

Last Update Submit

March 12, 2025

Conditions

Keywords

cryptodigital rewardsmHealthattritionCBTNFT

Outcome Measures

Primary Outcomes (1)

  • Participant retention

    The numbers of participants that get to finish the entire intervention

    From enrollment to the end of the 6 week intervention

Secondary Outcomes (10)

  • User Engagement Scale - Short Version (UES-SF)

    From the first module to the last (from week 1 to 6)

  • The Depression, Anxiety and Stress Scale (DASS-21) - Depression

    On week 1 and week 6 of the intervention

  • The Depression, Anxiety and Stress Scale (DASS-21) - Anxiety

    On week 1 and week 6 of the intervention

  • The Depression, Anxiety and Stress Scale (DASS-21) - Stress

    On week 1 and week 6 of the intervention

  • DSM-5 Self-Rated Level 1 Cross-Cutting Symptom Measure-Adult

    On week 1 and week 6 of the intervention

  • +5 more secondary outcomes

Study Arms (3)

Crypto reward group

EXPERIMENTAL

The participants will be enrolled in a weekly, 6 module intervention, which will require them to read psychoeducational materials, complete quizzes regarding those materials, complete the module-specific exercise, and then get rewarded in cryptocurrency. The participants will be assessed before, during and after the intervention.

Behavioral: Multipurpose Online Tool

Sweepstakes reward group

ACTIVE COMPARATOR

The participants will be enrolled in a weekly, 6 module intervention, which will require them to read psychoeducational materials, complete quizzes regarding those materials, complete the module-specific exercise, and then earn the chance to win vouchers for an online store. The participants will be assessed before, during and after the intervention.

Behavioral: Multipurpose Online Tool

Waitlist

OTHER

The participants will be enrolled on the platform, but only for completing the assessments.

Other: No intervention

Interventions

The intervention consists of 6 psychoeducational modules, on the Canvas teaching platform. They are automated, requiring no interaction with others (except for communication between participants and the team). Participants go through the psychoeducational modules, then do the corresponding exercise, and then access their rewards (if they belong to the experimental or comparative groups).

Crypto reward groupSweepstakes reward group

The participants will be assessed but without any intervention

Waitlist

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • English speaking

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Bucharest

Bucharest, Romania

Location

MeSH Terms

Conditions

Tooth WearDepressionAnxiety DisordersCryptococcosis

Condition Hierarchy (Ancestors)

Tooth DiseasesStomatognathic DiseasesBehavioral SymptomsBehaviorMental DisordersMycosesBacterial Infections and MycosesInfections

Central Study Contacts

Cezar Giosan, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Psychology

Study Record Dates

First Submitted

February 24, 2025

First Posted

March 19, 2025

Study Start

March 15, 2025

Primary Completion

June 15, 2025

Study Completion

September 1, 2025

Last Updated

March 19, 2025

Record last verified: 2025-03

Locations