NCT07649278

Brief Summary

This study will examine the feasibility, appropriateness, and acceptability of a bundle of smartphone-based tools for lowering overdose risk. 40 participants will be enrolled and can expect to be on study for up to 9 months.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
10mo left

Started Jul 2026

Geographic Reach
1 country

1 active site

Status
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

Study Progress11%
Jul 2026Jun 2027

First Submitted

Initial submission to the registry

June 10, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

June 16, 2026

Completed
15 days until next milestone

Study Start

First participant enrolled

July 1, 2026

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

July 14, 2026

Status Verified

June 1, 2026

Enrollment Period

11 months

First QC Date

June 10, 2026

Last Update Submit

July 10, 2026

Conditions

Keywords

Substance Use DisorderOpioid Use Disorder

Outcome Measures

Primary Outcomes (3)

  • Acceptability of Intervention Measure (AIM)

    The Acceptability of Intervention Measure (AIM) measures intervention acceptability with 4 items ranked on a 5-point Likert-type scale. Participants will be asked the 4-item questionnaire for each tool offered in the bundle (3). Scores are averaged across the measure for each tool and subsequently scores for individual tools will be summed to generate a composite acceptability score of the program. Scores can range from 3-15, with higher scores meaning higher acceptability of the intervention

    up to 6 months

  • Intervention Appropriateness Measure (IAM)

    The Intervention Appropriateness Measure (IAM) measures intervention appropriateness with 4 items ranked on a 5-point Likert-type scale. Participants will be asked the 4-item questionnaire for each tool offered in the bundle (3). Scores are averaged across the measure for each tool and subsequently scores for individual tools will be summed to generate a composite appropriateness score of the program. Scores can range from 3-15, with higher scores meaning higher appropriateness of the intervention.

    up to 6 months

  • Feasibility of Intervention Measure (FIM)

    The Feasibility of Intervention Measure (FIM) measures intervention feasibility with 4 items ranked on a 5-point Likert-type scale. Participants will be asked the 4-item questionnaire for each tool offered in the bundle (3). Scores are averaged across the measure for each tool and subsequently scores for individual tools will be summed to generate a composite feasibility score of the program. Scores can range from 3-15, with higher scores meaning higher feasibility of the intervention.

    up to 6 months

Secondary Outcomes (1)

  • Change in the Number of Risk Days from baseline to 6 months

    baseline, 6 months

Study Arms (1)

Pilot Participants

EXPERIMENTAL

People who use opioid and/or stimulant drugs and are disconnected from harm reduction services.

Device: Connections mHealth Application

Interventions

Mobile health app, bundled with other harm reduction internet and phone resources

Pilot Participants

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Be at least 18 years old
  • Be able to read and write in English
  • Report drug use in the past 30 days, defined as
  • Any use of illicit stimulants, opioids, OR
  • Use of prescription opioids by a route other than "by mouth/swallowed"
  • Additionally report recent drug use of at least twice in the past 7 days
  • Have NOT used any of the following harm reduction services in the past 6 months:
  • In-person community-based prevention services for people who use drugs
  • Overdose crisis hotlines
  • Online mail-order prevention supply delivery
  • Apps for supporting addiction treatment or recovery
  • Be at least 18 years old
  • Be able to read and write in English
  • Have served as a member of the existing Community Leadership Team.

You may not qualify if:

  • Are under the age of 18
  • Have impaired decision making capacity at the time of screening
  • Do not have the ability to participate in screening and enrollment activities in any one of the following ways:
  • Traveling to their nearest participating Vivent Health health center
  • Coordinating a visit with the Vivent Health harm reduction mobile unit
  • Accessing and completing the online screening survey on a personal wifi/internet enabled device

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UW School of Medicine and Public Health

Madison, Wisconsin, 53792, United States

RECRUITING

MeSH Terms

Conditions

Substance-Related DisordersDrug OverdoseOpioid-Related Disorders

Condition Hierarchy (Ancestors)

Chemically-Induced DisordersMental DisordersPrescription Drug MisuseDrug MisuseNarcotic-Related Disorders

Study Officials

  • Rachel Gicquelais, PhD, MPH

    UW School of Medicine and Public Health

    PRINCIPAL INVESTIGATOR
  • Ryan Westergaard, MD, PhD, MPH

    UW School of Medicine and Public Health

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DEVICE FEASIBILITY
Intervention Model
SINGLE GROUP
Model Details: All participants receive intervention, up to N=10 are Peer Mentor Participants who have additional responsibility for generating content on discussion boards in the Connections App.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 10, 2026

First Posted

June 16, 2026

Study Start

July 1, 2026

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2027

Last Updated

July 14, 2026

Record last verified: 2026-06

Data Sharing

IPD Sharing
Will share

As part of a NIH-funded study which requires data sharing and open access commitments, data from this project will be shared with a national coordinating center and in an open-access data repository. Data shared with external research partners may contain limited identifiable information but will remain confidential and under the direction of an approved Data Use and Transfer Agreement (e.g. not public). Any data shared on public data repositories will be stripped of any potential identifiers.

Shared Documents
STUDY PROTOCOL, SAP, ICF

Locations