NCT01563718

Brief Summary

Naltrexone is a medication that has been shown to help prevent relapse to opioid addiction and it has been reported to be clinically effective in parolee populations although it is rarely used. Recently a depot formulation with one-month duration has received FDA approval for the treatment of alcoholism and opiate dependence. This means that rather than having to take medication daily, individuals can receive one injection that lasts for approximately 30 days. The purpose of this study is to determine whether this monthly injection of naltrexone is practical and useful in the prevention of relapse to opioids and re-incarceration when administered to inmates prior to release from prison. The investigators will also monitor HIV risk behaviors to determine whether the intervention reduces risky behaviors associated with intravenous drug abuse and the spread of viruses such as HIV and hepatitis C. Volunteers will be randomized to receive an injection of depot naltrexone prior to release from prison or to contact study personnel in the community following release. Participants assigned to receive naltrexone in prison will receive 1 injection in prison, and 5 additional monthly injections for 5 months upon release. Participants assigned to contact study personnel upon release will receive all 6 injections in the community at RIH after their release from the ACI. Patients in both groups will be given identical follow up monthly for six months including measures of opiate use by self-report, and urine tests. An additional scheduled urine test will take place each month between monthly visits. There will also be a 12-month follow-up period for participants in both groups, which will consist of 2 visits, spaced 6 months apart, meaning that participants will be enrolled in the study for a total of about 18 months. All participants will be asked to complete brief questionnaires at follow-up visits to assess things such as services received, drug use, and depression.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
26

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Mar 2012

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2012

Completed
22 days until next milestone

First Submitted

Initial submission to the registry

March 23, 2012

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 27, 2012

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2015

Completed
Last Updated

October 22, 2015

Status Verified

October 1, 2015

Enrollment Period

3.4 years

First QC Date

March 23, 2012

Last Update Submit

October 21, 2015

Conditions

Outcome Measures

Primary Outcomes (1)

  • Proportion of opioid-free days

    18 months

Study Arms (2)

PRE-release XR-NTX

EXPERIMENTAL

Participants randomly assigned to the pre-release condition will receive one injection of XR-NTX 1-2 weeks prior to prison release plus up to five additional injections of XR-NTX in the community after release

Drug: naltrexone for extended release injectable suspension

POST-release XR-NTX

ACTIVE COMPARATOR

Participant randomly assigned to the post-release group will be referred to Rhode Island Hospital to receive up to six injections of XR-NTX immediately after release from prison

Drug: naltrexone for extended release injectable suspension

Interventions

VIVITROL (naltrexone for extended-release injectable suspension) is supplied as a microsphere formulation of naltrexone for suspension, at a dose of 4cc (380mg of naltrexone base), administered by intramuscular injection to the buttocks (alternating sides monthly) for six months.

Also known as: VIVITROL
POST-release XR-NTXPRE-release XR-NTX

Eligibility Criteria

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

You may qualify if:

  • Incarcerated adults with known release date.
  • Meet DSM-IV criteria for current (and/or prior to incarceration) opioid dependence.
  • Not interested in agonist (methadone, buprenorphine) treatment.
  • Currently opioid free by history ('detoxed'), with negative urine for all opioids and no sign of opiate withdrawal after IV (or IM if no available venous access) injection of 0.8 mg naloxone.
  • Good health by medical history, physical examination and laboratory tests.
  • Age older than 18.
  • Understands and signs a consent form.
  • Able to speak and understand English.
  • Females: not pregnant (urine hCG negative at baseline and prior to each injection), not planning conception; and planning appropriate contraception if sexually active.

You may not qualify if:

  • Liver failure and/or liver function test levels greater than three times normal.
  • Pregnancy, lactation, or failure to use adequate contraceptive methods;
  • Active medical illness that might make participation hazardous, e.g. untreated hypertension, hepatitis with AST or ALT \> 3 times upper limit of normal, unstable diabetes or heart disease. Adequately treated medical conditions are acceptable.
  • Untreated psychiatric disorder that might make participation hazardous, e.g. untreated psychosis, bipolar disorder with mania, significant suicide risk. Adequately treated psychiatric disorders and appropriate psychotropic medications would be allowed.
  • History of allergic reaction to naltrexone;
  • Current chronic pain diagnosis for which opioids are required for pain relief.
  • Obesity (BMI of 40 or greater) to reduce the likelihood of injection site reaction.
  • Known intolerance and/or hypersensitivity to naltrexone, carboxymethylcellulose, or polylactide-co-polymers (PLG) or any other components of the diluents.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rhode Island Hospital

Providence, Rhode Island, 02903, United States

Location

MeSH Terms

Conditions

Substance-Related Disorders

Interventions

Naltrexonevivitrol

Condition Hierarchy (Ancestors)

Chemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

NaloxoneMorphinansOpiate AlkaloidsAlkaloidsHeterocyclic CompoundsHeterocyclic Compounds, Bridged-RingHeterocyclic Compounds, 4 or More RingsHeterocyclic Compounds, Fused-RingPhenanthrenesPolycyclic Aromatic HydrocarbonsPolycyclic Compounds

Study Officials

  • Peter D Friedmann, MD, MPH

    Rhode Island Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 23, 2012

First Posted

March 27, 2012

Study Start

March 1, 2012

Primary Completion

August 1, 2015

Study Completion

August 1, 2015

Last Updated

October 22, 2015

Record last verified: 2015-10

Locations