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Substance UsePhase 2NCT01532934

The Impact of Psychopathic Traits on the Efficacy of a Substance Use Intervention

A Phase 2 study testing motivational enhancement therapy in people with Substance Use and Psychopathy, run by University of Rochester at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Substance use among criminal offenders constitutes a major public health problem and is tied to negative consequences for offenders, their families, and their communities. One of the direst of these consequences is repeated incarceration; thus, interventions that reduce criminal recidivism are needed. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Substance Use, Psychopathy
What is being tested?
motivational enhancement therapy
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
105 participants
Where
1 siteUnited States
Study dates
Aug 2009to Jul 2014
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • In local pretrial services program; English speaking

Who cannot join

  • Psychosis, inability to provide informed consent

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Pretrial Services, Inc.

    Rochester, New York, 14642

Other trials in United States

About this study

Official title: The Impact of Psychopathic Traits on the Efficacy of a Brief Intervention for Substance Use

Substance use among criminal offenders constitutes a major public health problem and is tied to negative consequences for offenders, their families, and their communities. One of the direst of these consequences is repeated incarceration; thus, interventions that reduce criminal recidivism are needed. Forensic populations are often viewed with considerable therapeutic pessimism. However, offenders exhibit heterogeneity in personality traits, and the assessment of individual differences among offenders may provide valuable information that guides the use of psychotherapeutic interventions. Among offenders, psychopathy has emerged as an important personality construct for the understanding of violence and criminal recidivism. Moreover, core traits of psychopathy such as lack of empathy, deceitfulness, and lack of remorse may have negative implications for the efficacy of psychosocial interventions. A foundational premise of the present work is that understanding the moderating role of psychopathic traits on substance use treatment outcomes among offenders is essential to determining what works, and for whom. The current proposal is a Phase II randomized clinical trial that aims to examine the impact of psychopathic traits on the efficacy of a brief substance use intervention for offenders in a jail diversion program. Hypotheses that will be examined include: 1) that a Motivational Interviewing (MI) - based treatment will reduce substance use and related consequences relative to a Standard Care only condition, 2) that the reduction in substance use in the intervention group will mediate a reduction in later criminal recidivism relative to the Standard Care condition, and 3) that core psychopathic traits will moderate the efficacy of the intervention such that individuals with lower levels of these traits will derive greater benefits with regard to decreased substance use, decreased drug use consequences, and decreased criminal recidivism at a one-year follow-up.

Read the detailed description

Substance use among criminal offenders constitutes a major public health problem and is tied to negative consequences for offenders, their families, and their communities. One of the direst of these consequences is repeated incarceration; thus, interventions that reduce criminal recidivism are needed. Forensic populations are often viewed with considerable therapeutic pessimism. However, offenders exhibit heterogeneity in personality traits, and the assessment of individual differences among offenders may provide valuable information that guides the use of psychotherapeutic interventions. Among offenders, psychopathy has emerged as an important personality construct for the understanding of violence and criminal recidivism. Moreover, core traits of psychopathy such as lack of empathy, deceitfulness, and lack of remorse may have negative implications for the efficacy of psychosocial interventions. A foundational premise of the present work is that understanding the moderating role of psychopathic traits on substance use treatment outcomes among offenders is essential to determining what works, and for whom. The current proposal is a Phase II randomized clinical trial that aims to examine the impact of psychopathic traits on the efficacy of a brief substance use intervention for offenders in a jail diversion program. Hypotheses that will be examined include: 1) that a Motivational Interviewing (MI) - based treatment will reduce substance use and related consequences relative to a Standard Care only condition, 2) that the reduction in substance use in the intervention group will mediate a reduction in later criminal recidivism relative to the Standard Care condition, and 3) that core psychopathic traits will moderate the efficacy of the intervention such that individuals with lower levels of these traits will derive greater benefits with regard to decreased substance use, decreased drug use consequences, and decreased criminal recidivism at a one-year follow-up. This work has the potential to provide important data regarding which individuals can benefit from a brief intervention for substance use. Such data will inform the effective and efficient allocation of treatment resources for substance using offenders.

Being tested
motivational enhancement therapy, standard care
Keywords
substance use, psychopathy, motivational enhancement, criminal recidivism
Medical subject headings
Substance-Related Disorders, Antisocial Personality Disorder, Recidivism

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • motivational enhancement therapyBehavioural

    Also called SBIRT; brief motivational intervention

    Four 45-minute MET sessions

  • standard careOther

Study groups in NCT01532934
Study groupRoleWhat they receive
brief therapyExperimentalmotivational enhancement therapy for substance use
Receives: Behavioral: motivational enhancement therapy
Standard CarePlacebo comparatorstandard care
Receives: Other: standard care

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percent Days Abstinent Per Month From Drug Use

    Using timeline followback data, frequency of substance use was assessed for months three through six and presented as average percent days abstinent per month.

    Measured: three to six months post baseline

Secondary outcomes (2)
  1. Shortened Inventory of Problems With Alcohol and Drugs (SIP-AD)

    A measure of consequences of drug and alcohol use across several domains (e.g., social, work, health), SIP-AD scores range from 0-45, with higher scores indicating higher levels of substance use consequences.

    Measured: six months

  2. New Criminal Charge

    New criminal charge vs. no new criminal charge at follow-up as indicated by county database.

    Measured: one year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Feb 2012 (estimated)
  2. Study startAug 2009
  3. Primary completionJul 2014
  4. Study completionJul 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Investigator
Enrolment
105 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01532934
Sponsor's protocol ID
28780
Other IDs
K23DA027720
Status last verified
Oct 2016
First submitted
31 Jan 2012
Last updated
12 Dec 2016
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Swogger MT, Conner KR, Caine ED, Trabold N, Parkhurst MN, Prothero LM, Maisto SA. A test of core psychopathic traits as a moderator of the efficacy of a brief motivational intervention for substance-using offenders. J Consult Clin Psychol. 2016 Mar;84(3):248-58. doi: 10.1037/ccp0000065. Epub 2016 Jan 4.

    PubMed 26727409

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing motivational enhancement therapy in people with Substance Use and Psychopathy, run by University of Rochester at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 Dec 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 12 Dec 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percent Days Abstinent Per Month From Drug Use (time frame: three to six months post baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01532934, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Dec 2016.

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