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SMART Trial: Intrapersonal and Interpersonal Stigma Reduction

SMART Trial: Reducing Stigma Towards Opioid Use Disorder on the Intrapersonal and Interpersonal Levels

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04693416
Enrollment
71
Registered
2021-01-05
Start date
2021-03-08
Completion date
2021-08-30
Last updated
2023-03-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Opioid Use, Opioid-use Disorder, Stigma, Social, Substance Use Disorders

Keywords

opioid use disorder, substance use disorder, stigma

Brief summary

The goal of this project is to develop a multicomponent stigma reduction intervention to address intrapersonal (individual) stigma regarding Opioid Use Disorder (OUD). The intervention will address this cost/benefit evaluation among individuals known to face intersecting stigma of OUD and African American race, with treatment elements chosen explicitly to increase the value of treatment using salient forms of reward, and to ease perceived costs through explicit services in an effort to encourage the occurrence of the first treatment visit for OUD.

Interventions

OTHERIntrapersonal Stigma Reduction

Brief intervention for stigma reduction

OTHERInterpersonal Stigma Reduction

Brief intervention for support persons of intrapersonal intervention participants.

Sponsors

National Center for Complementary and Integrative Health (NCCIH)
CollaboratorNIH
National Institutes of Health (NIH)
CollaboratorNIH
University of Tennessee
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 18 years of age or older * Identify as African American, Black, or mixed race * Identify as someone with a substance use disorder who is not currently in treatment OR a support person of someone enrolled * Access to a telephone for follow-up assessment * Reside in the Memphis, TN area

Exclusion criteria

* Unable to understand consent procedures

Design outcomes

Primary

MeasureTime frameDescription
Internalized Stigma (Intrapersonal)Immediately before and 2-weeks post-intervention deliveryChange in Internalized Stigma subscore from Substance Use Stigma Mechanisms Scale (SU-SMS) pre- and post-intervention. All responses are given on a 5-point Likert-type scale, with higher scores indicating greater endorsement of substance use stigma. Enacted (6 items) scale can be created by taking the average of the item responses given. Minimum score = 6, Maximum score = 30. Reported mean is the change in these scores (pre score - post score), so a positive number for the mean is a reduction in stigma using average scores from the Internalized Stigma subscore.
Enacted Stigma (Intrapersonal)Immediately before and 2-weeks post-intervention deliveryChange in Enacted Stigma subscore from Substance Use Stigma Mechanisms Scale (SU-SMS) pre- and post-intervention. All responses are given on a 5-point Likert-type scale, with higher scores indicating greater endorsement of substance use stigma. Enacted (6 items) scale can be created by taking the average of the item responses given. Minimum score = 6, Maximum score = 30. Reported mean is the change in these scores (pre score - post score), so a positive number for the mean is a reduction in stigma using average scores from the Enacted Stigma subscore.
Anticipated Stigma (Intrapersonal)Immediately before and 2-weeks post-intervention deliveryChange in Anticipated Stigma subscore from Substance Use Stigma Mechanisms Scale (SU-SMS) pre- and post-intervention. All responses are given on a 5-point Likert-type scale, with higher scores indicating greater endorsement of substance use stigma. Enacted (6 items) scale can be created by taking the average of the item responses given. Minimum score = 6, Maximum score = 30. Reported mean is the change in these scores (pre score - post score), so a positive number for the mean is a reduction in stigma using average scores from the Anticipated Stigma subscore.
Stigma of Drug Users Scale ScorePre/post intervention (week 0: post-test immediately followed intervention)The Stigma of Drug Users Scale measures stigma. There are 10 items scored on a 5-point likert scale. Higher scores indicate higher stigma. The score is the average of the 10 items (Min score = 1, Max score = 5). The reported mean for this outcome measure is the change in this score pre and post intervention (pre score - post score). A positive mean indicates a reduction in stigma.
Exposure to Drug Users Index ScorePre/post intervention (week 0)Exposure to drug users index includes questions regarding if a participant has been exposed to a drug user at home, at work, at school, etc. (7 items; No = 0, Yes = 1). Score is total count (min score = 0, max score = 7). Higher scores indicate more exposure to drug users. Reported mean is the change in this score pre and post intervention (post score - pre score).
Drug Use Stigmatization Scale ScorePre/post intervention (week 0: post-test immediately followed intervention)The Drug Use Stigmatization Scale measures stigma against drug users. The scale contains 7 items scored on a 5-point likert scale with higher scores representing higher stigma. The score is the average score of the seven items. Min score = 1, Max score = 5. Reported mean is the change in these scores (pre score - post score), so a positive number for the mean is a reduction in stigma.

Secondary

MeasureTime frameDescription
Engagement in Treatment2-weeks post-interventionNumber of participants in intrapersonal arm who made an appointment for treatment after receiving the intervention.

Countries

United States

Participant flow

Recruitment details

Participants in the intrapersonal intervention were recruited from community centers in the target area. Participants in the interpersonal intervention were support persons referred by the participants in the intrapersonal intervention.

Participants by arm

ArmCount
Intrapersonal Stigma Reduction
The intervention will include education about substance use disorders (diagnosis, prognosis, and treatment), goal setting to assist the individual in preparing for change, and decisional balance to assist the individual in measuring the costs and benefits about disclosure of mental health problems and exercises to practice how to disclose. Facilitation of an intake assessment for treatment will be offered (with assistance in making the appointment, getting transportation and childcare, and securing a pro-bono status at a outpatient treatment facility). Intrapersonal Stigma Reduction: Brief intervention for stigma reduction
50
Interpersonal Stigma Reduction
The intervention for family members and support persons of enrolled intrapersonal participants will include education about substance use disorders (diagnosis, prognosis, and treatment), stigma reduction, and how to provide support for someone with substance use disorder. Interpersonal Stigma Reduction: Brief intervention for support persons of intrapersonal intervention participants.
21
Total71

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up130

Baseline characteristics

CharacteristicIntrapersonal Stigma ReductionTotalInterpersonal Stigma Reduction
Age, Continuous42.9 years41.0 years36.3 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
50 Participants71 Participants21 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
50 Participants71 Participants21 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants
Region of Enrollment
United States
50 participants71 participants21 participants
Sex: Female, Male
Female
25 Participants40 Participants15 Participants
Sex: Female, Male
Male
25 Participants31 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 500 / 21
other
Total, other adverse events
0 / 500 / 21
serious
Total, serious adverse events
0 / 500 / 21

Outcome results

Primary

Anticipated Stigma (Intrapersonal)

Change in Anticipated Stigma subscore from Substance Use Stigma Mechanisms Scale (SU-SMS) pre- and post-intervention. All responses are given on a 5-point Likert-type scale, with higher scores indicating greater endorsement of substance use stigma. Enacted (6 items) scale can be created by taking the average of the item responses given. Minimum score = 6, Maximum score = 30. Reported mean is the change in these scores (pre score - post score), so a positive number for the mean is a reduction in stigma using average scores from the Anticipated Stigma subscore.

Time frame: Immediately before and 2-weeks post-intervention delivery

ArmMeasureValue (MEAN)Dispersion
Intrapersonal Stigma ReductionAnticipated Stigma (Intrapersonal)0.514 score on a scaleStandard Deviation 4.985
Comparison: Pre/post score within armp-value: 0.546t-test, 2 sided
Primary

Drug Use Stigmatization Scale Score

The Drug Use Stigmatization Scale measures stigma against drug users. The scale contains 7 items scored on a 5-point likert scale with higher scores representing higher stigma. The score is the average score of the seven items. Min score = 1, Max score = 5. Reported mean is the change in these scores (pre score - post score), so a positive number for the mean is a reduction in stigma.

Time frame: Pre/post intervention (week 0: post-test immediately followed intervention)

Population: This measure was only given to the Interpersonal arm only.

ArmMeasureValue (MEAN)Dispersion
Intrapersonal Stigma ReductionDrug Use Stigmatization Scale Score2.105 score on a scaleStandard Deviation 4.345
Comparison: Pre/post score within armp-value: 0.049t-test, 2 sided
Primary

Enacted Stigma (Intrapersonal)

Change in Enacted Stigma subscore from Substance Use Stigma Mechanisms Scale (SU-SMS) pre- and post-intervention. All responses are given on a 5-point Likert-type scale, with higher scores indicating greater endorsement of substance use stigma. Enacted (6 items) scale can be created by taking the average of the item responses given. Minimum score = 6, Maximum score = 30. Reported mean is the change in these scores (pre score - post score), so a positive number for the mean is a reduction in stigma using average scores from the Enacted Stigma subscore.

Time frame: Immediately before and 2-weeks post-intervention delivery

Population: Intrapersonal arm only

ArmMeasureValue (MEAN)Dispersion
Intrapersonal Stigma ReductionEnacted Stigma (Intrapersonal)0.730 score on a scaleStandard Deviation 3.813
Comparison: Pre/post scores within armp-value: 0.252t-test, 2 sided
Primary

Exposure to Drug Users Index Score

Exposure to drug users index includes questions regarding if a participant has been exposed to a drug user at home, at work, at school, etc. (7 items; No = 0, Yes = 1). Score is total count (min score = 0, max score = 7). Higher scores indicate more exposure to drug users. Reported mean is the change in this score pre and post intervention (post score - pre score).

Time frame: Pre/post intervention (week 0)

Population: Interpersonal arm only

ArmMeasureValue (MEAN)Dispersion
Intrapersonal Stigma ReductionExposure to Drug Users Index Score-0.476 score on a scaleStandard Deviation 1.601
Comparison: Pre/post scores within armp-value: 0.188t-test, 2 sided
Primary

Internalized Stigma (Intrapersonal)

Change in Internalized Stigma subscore from Substance Use Stigma Mechanisms Scale (SU-SMS) pre- and post-intervention. All responses are given on a 5-point Likert-type scale, with higher scores indicating greater endorsement of substance use stigma. Enacted (6 items) scale can be created by taking the average of the item responses given. Minimum score = 6, Maximum score = 30. Reported mean is the change in these scores (pre score - post score), so a positive number for the mean is a reduction in stigma using average scores from the Internalized Stigma subscore.

Time frame: Immediately before and 2-weeks post-intervention delivery

ArmMeasureValue (MEAN)Dispersion
Intrapersonal Stigma ReductionInternalized Stigma (Intrapersonal)2.324 score on a scaleStandard Deviation 4.72
Comparison: Pre/post scores within armp-value: 0.005t-test, 2 sided
Primary

Stigma of Drug Users Scale Score

The Stigma of Drug Users Scale measures stigma. There are 10 items scored on a 5-point likert scale. Higher scores indicate higher stigma. The score is the average of the 10 items (Min score = 1, Max score = 5). The reported mean for this outcome measure is the change in this score pre and post intervention (pre score - post score). A positive mean indicates a reduction in stigma.

Time frame: Pre/post intervention (week 0: post-test immediately followed intervention)

Population: This measure was only given to the Interpersonal arm only.

ArmMeasureValue (MEAN)Dispersion
Intrapersonal Stigma ReductionStigma of Drug Users Scale Score1.211 score on a scaleStandard Deviation 2.323
Comparison: Pre/post scores within armp-value: 0.036t-test, 2 sided
Secondary

Engagement in Treatment

Number of participants in intrapersonal arm who made an appointment for treatment after receiving the intervention.

Time frame: 2-weeks post-intervention

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Intrapersonal Stigma ReductionEngagement in Treatment4 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026