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Substance Use DisordersPhase 2NCT00288886

Reinforcement of Abstinence and Continuing Care in Substance Abuse Treatment

A Phase 2 study testing Contracting, Prompting and Reinforcement arm in people with Substance Use Disorders and Alcohol Abuse, run by US Department of Veterans Affairs at 2 sites 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

The Contracts, Prompts, and Social Reinforcement (CPR) intervention was designed to address the continuing care adherence needs of veterans presenting for substance use disorder (SUD) treatment. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Substance Use Disorders, Alcohol Abuse, Alcoholism
What is being tested?
Contracting, Prompting and Reinforcement arm
Could I receive a placebo?
No, everyone receives an active treatment
How many people
183 participants
Where
2 sitesUnited States
Study dates
Mar 2007to Jun 2011
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

  • Participants were recruited from consecutive veterans who successful complete the 28-day SARRTP at the Salem VAMC and the 21-day SARRTP at the Jackson VAMC. Participants who are uninterested in aftercare, who have unstable housing or other factors that made aftercare participation difficult, will be included to maximize the generalizability of our results.

Who cannot join

  • Individuals who did not live within a 60-minute drive, and those who did not have transportation and a work schedule allowing attendance of aftercare were ineligible.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • G.V. (Sonny) Montgomery VA Medical Center, Jackson, MS

    Jackson, Mississippi, 39216

  • Salem VA Medical Center, Salem, VA

    Salem, Virginia, 24153

Other trials in United States

About this study

Official title: Reinforcement of Abstinence and Attendance in Substance Abuse Treatment

The Contracts, Prompts, and Social Reinforcement (CPR) intervention was designed to address the continuing care adherence needs of veterans presenting for substance use disorder (SUD) treatment. Final results of our recently completed HSR\&D clinical trial suggest CPR meaningfully impacts aftercare adherence and abstinence rates. However, CPR did not impact abstinence rates at earlier follow-up points, other important measures of treatment outcome, or AA/NA support group attendance. Furthermore, the generalizability of CPR to other sites has not been established. Thus, the intervention has been modified and pilot testing of this improved version of CPR, which includes contingent reinforcement of abstinence and improved prompting of AA/NA attendance (CPR+), shows promising results. We are conducting a multi-site randomized clinical trial to examine the effectiveness of CPR+. We recruited 183 veterans seeking residential treatment at the Salem and Jackson VAMCs. Our primary hypothesis is that the CPR group will have higher 1-year abstinence rates compared to the STX group. Our secondary hypotheses are that the CPR will be particularly effective for individuals with co-morbid psychiatric disorders, and that the CPR+ group will remain in AA/NA and in aftercare for a longer duration, have fewer days of substance use, fewer hospitalizations, and lower costs of care. Treatment outcome will be measured 3-, 6-, and 12-months after participants enter treatment and compared to baseline levels. The current study will seek to extend past findings to show longer-term effectiveness of the CPR+ intervention on continuing care adherence and greater impact on treatment outcome. Dissemination and implementation efforts will be ongoing for this brief, inexpensive intervention, which offers an important means to improve participation and outcome for individuals seeking SUD treatment within the VAMC. Data collection and analysis has been completed.

Read the detailed description

The Contracts, Prompts, and Social Reinforcement (CPR) intervention was designed to address the continuing care adherence needs of veterans presenting for substance use disorder (SUD) treatment. Final results of our recently completed HSR\&D clinical trial suggest CPR meaningfully impacts aftercare adherence and abstinence rates. Among CPR participants, 55% met the VA's SUD continuity of care performance measure (attending at least 2 therapy sessions each month for 3 months), compared to 36% of those in standard treatment (STX). On the primary outcome variable, 57% of the participants in the CPR condition were abstinent at the 1-year follow-up compared to 37% of those in STX. Post hoc moderator analyses also indicate that the intervention was particularly effective for participants with co-morbid psychiatric disorders. However, CPR did not impact abstinence rates at earlier follow-up points, other important measures of treatment outcome, or AA/NA support group attendance. Furthermore, the generalizability of CPR to other sites has not been established. Thus, the intervention has been modified and pilot testing of this improved version of CPR, which includes contingent reinforcement of abstinence and improved prompting of AA/NA attendance (CPR+), shows promising results. We conducted a multi-site randomized clinical trial to examine the effectiveness of CPR+ with 2 specific goals: 1) to compare CPR+ to STX on adherence to continuing care (i.e., AA/NA participation and aftercare therapy) and 2) to assess its effect on treatment outcome. We recruited 183 veterans seeking residential treatment at the Salem and Jackson VAMCs. Our primary hypothesis is that the CPR group will have higher 1-year abstinence rates compared to the STX group. Our secondary hypotheses are that the CPR will be particularly effective for individuals with co-morbid psychiatric disorders, and that the CPR+ group will remain in AA/NA and in aftercare for a longer duration, have fewer days of substance use, fewer hospitalizations, and lower costs of care. Treatment outcome will be measured 3-, 6-, and 12-months after participants enter treatment and compared to baseline levels using the Form-90 Interview, the Addiction Severity Index (ASI), questionnaire responses, and substance use screens. Treatment adherence will be measured using VA databases, medical records, therapist ratings, and questionnaire responses. Abstinence rates will be analyzed using a logistic regression model in which the parameters of interest are estimated using Generalized Estimating Equations. Secondary outcomes will be analyzed using both marginal and linear mixed-effects models as appropriate. The current study sought to extend past findings to show longer-term effectiveness of the CPR+ intervention on continuing care adherence and greater impact on treatment outcome. Dissemination and implementation efforts are ongoing for this brief, inexpensive intervention, which offers an important means to improve participation and outcome for individuals seeking SUD treatment within the VAMC.

Being tested
Contracting, Prompting and Reinforcement arm, Control arm
Keywords
Compliance, Aftercare, Reinforcement, social, Alcoholics Anonymous, Support Groups, Treatment Outcome
Medical subject headings
Substance-Related Disorders, Alcoholism, Patient Compliance

What participants receive

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

  • Contracting, Prompting and Reinforcement armBehavioural

    Contracting, prompting and reinforcement of continuing care and abstinence.

  • Control armBehavioural

    Routine residential treatment and orientation to continuing care.

Study groups in NCT00288886
Study groupRoleWhat they receive
Contracts, Prompts and Reinforcement armExperimentalParticipants were provided with contracting, prompting and reinforcement of continuing care attendance and substance use abstinence.
Receives: Behavioral: Contracting, Prompting and Reinforcement arm
Control ArmActive comparatorParticipants were provided with routine care- they did not receive contracting, prompting and reinforcement of continuing care attendance and substance use abstinence.
Receives: Behavioral: Control arm

What is being measured

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

  1. Abstinence Rate (During the Preceding 90 Days) at 12 Months Follow-up Point as Assessed by the Form-90

    Participants who were abstinent was assessed via Form-90 Interview (Form 90I) is a structured interview that assesses substance use and related behaviors over the previous 90 days employing a calendar-based follow-back method that provides continuous measures of substance use, and has good reliability. Measures include days abstinent, days using alcohol, days using drugs, total number of standard drinks, and days of self help meeting attendance. Briefer versions were constructed to collect data via telephone in instances when participants did not return for in-person interviews. As a reliability check on participants' self-report, a collateral interview was employed when contacting informants. Participants who denied use on the Form-90, but had a positive substance use screen were considered to be not abstinent for that follow-up point.

    Measured: Assessed at 12 months

Secondary outcomes (6)
  1. Abstinence Rate (During the Preceding 90 Days) at 3- and 6-months Follow-up Point as Assessed by the Form-90

    Participants who were abstinent was assessed via Form-90 Interview (Form 90I) is a structured interview that assesses substance use and related behaviors over the previous 90 days employing a calendar-based follow-back method that provides continuous measures of substance use, and has good reliability. Measures include days abstinent, days using alcohol, days using drugs, total number of standard drinks, and days of self help meeting attendance. Briefer versions were constructed to collect data via telephone in instances when participants did not return for in-person interviews. As a reliability check on participants' self-report, a collateral interview was employed when contacting informants. Participants who denied use on the Form-90, but had a positive substance use screen were considered to be not abstinent for that follow-up point.

    Measured: Assessed at 3 and 6 months

  2. Days Until First Use of Alcohol or Drugs

    Measured: Baseline to 12 months

  3. Aftercare Attendance

    Measures of aftercare attendance include: Percentage of participants who attended at least 1 aftercare session; percentage of participants who attended at least 2 aftercare sessions/month for at least 3, 6, 9 and 12 months; and percentage of participants who passed the VAMC's SUD continuity of care performance measure (a benchmark for retention of clients in aftercare for at least two visits each month for 3 months following initial treatment)

    Measured: Assessed at 3-, 6-, 9-, and 12-months

  4. Self-help Support Group Attendance

    Measured: Assessed over the past 90 days at 3, 6 and 12 months, and cumulative over 1 year

  5. Days of Substance Abuse (Across the Prior 90 Days)

    Measured: Assessed at Baseline, 3-, 6-, and 12-month follow-up

  6. Rates of Hospitalization (Across the Prior 90 Days)

    Number of days hospitalized for any reason per the previous 90 days

    Measured: Assessed at Baseline, 3-, 6-, and 12-months

Timeline

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

  1. First posted8 Feb 2006 (estimated)
  2. Study startMar 2007
  3. Primary completionJun 2009
  4. Study completionJun 2011

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
Outcomes assessor
Enrolment
183 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00288886
Sponsor's protocol ID
IIR 03-267
Status last verified
Jul 2014
First submitted
6 Feb 2006
Last updated
24 Apr 2015
Data monitoring committee
Yes

Publications

  • Lash SJ, Timko C, Curran GM, McKay JR, Burden JL. Implementation of evidence-based substance use disorder continuing care interventions. Psychol Addict Behav. 2011 Jun;25(2):238-51. doi: 10.1037/a0022608.

    PubMed 21443297
  • Lash SJ, Burden JL, Parker JD, Stephens RS, Budney AJ, Horner RD, Datta S, Jeffreys AS, Grambow SC. Contracting, prompting and reinforcing substance use disorder continuing care. J Subst Abuse Treat. 2013 Apr;44(4):449-56. doi: 10.1016/j.jsat.2012.09.008. Epub 2012 Oct 31.

    PubMed 23122489

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Contracting, Prompting and Reinforcement arm in people with Substance Use Disorders and Alcohol Abuse, run by US Department of Veterans Affairs at 2 sites 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 24 Apr 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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. 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 29 Oct 2014). 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?

Abstinence Rate (During the Preceding 90 Days) at 12 Months Follow-up Point as Assessed by the Form-90 (time frame: Assessed at 12 months). 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 NCT00288886, which also lists 2 linked publications.

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 24 Apr 2015.

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