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Extended-release Naltrexone for Alcohol Dependence in Primary Care

Extended-release Naltrexone (Vivitrol) for the Treatment of Alcohol Dependence in Urban Primary Care: a Feasibility Study

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00620750
Enrollment
72
Registered
2008-02-21
Start date
2007-07-31
Completion date
2010-02-28
Last updated
2011-09-27

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

Conditions

Alcohol Dependence

Keywords

Alcohol dependence

Brief summary

Naltrexone is an opioid antagonist with a high affinity for the mu opioid receptor. The efficacy of extended-release naltrexone (Vivitrol) as a treatment for alcohol dependence has been demonstrated in clinical trials, raising the prospect of integrating pharmacologic treatment for alcohol dependence into general medical care settings. However, the feasibility of implementing this United States Food and Drug Administration approved treatment in the front-line settings in which it is most needed has not been demonstrated. This is an open-label pilot feasibility study of implementing treatment with Vivitrol in primary care medical clinics in a safety net hospital system affiliated with an urban academic center.

Interventions

DRUGExtended release injectable naltrexone (Vivitrol)

Three sequential monthly injections of extended release injectable naltrexone (Vivitrol), with option to extend participation for an additional 12 months.

Sponsors

Alkermes, Inc.
CollaboratorINDUSTRY
NYU Langone Health
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Current alcohol dependence * Age 18 or older * English or Spanish-speaking * Without untreated severe mental illness * Liver enzymes (alanine aminotransferase and aspartate aminotransferase) ≤ 3x normal * Kept 2 of last 3 clinic primary care appointments and/or has a working telephone number at which can be contacted directly * Either a) currently abstinent (e.g., referred from an inpatient 'detox' setting) or b) with the ability, in the clinician's judgment, to achieve and maintain abstinence * If female of child-bearing potential, must be using adequate contraception * Able to understand study procedures

Exclusion criteria

* Currently opioid dependent or requiring ongoing treatment with opioids for any indication

Design outcomes

Primary

MeasureTime frame
Percent of Patients Initiating Vivitrol Treatment Who Receive 3 Consecutive Monthly Vivitrol Injections4 months

Countries

United States

Participant flow

Recruitment details

The study began July 2007. Community recruitment was performed from August 2007 to September 2008 in the primary care clinics of Bellevue Hospital and Gouverneur Diagnostic and Treatment Centers, two public hospital facilities in lower Manhattan. 116 persons contacted study staff regarding possible participation, and 76 were consented and screened.

Pre-assignment details

Four consented patients were ineligible due to elevated liver function tests (n = 2), opioid dependence (n =1), and an uncontrolled psychiatric condition (n = 1). Seventy two participants met eligibility criteria and consented to study involvement, sixty-five participants presented for the initial treatment visit.

Participants by arm

ArmCount
Extended Release Injectable Naltrexone
This was a single arm trial, with no formal control group. The treatment administered was a single 380-mg extended-release naltrexone (Vivitrol)dose injected intramuscularly into the upper, outer gluteus,alternating sides monthly. Medication injection was performed by physicians per package insert guidelines. A final Month 4 visit assessed treatment outcomes and satisfaction. Patients interested in further extended-release naltrexone treatment at study end were referred to a related 12-month extended-release naltrexone extension study, and all patients were able to continue in primary care.
65
Total65

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLost to Follow-up25

Baseline characteristics

CharacteristicExtended Release Injectable Naltrexone
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
65 Participants
Age Continuous46 years
STANDARD_DEVIATION 8.535196
Region of Enrollment
United States
65 participants
Sex: Female, Male
Female
16 Participants
Sex: Female, Male
Male
49 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
45 / 65
serious
Total, serious adverse events
2 / 65

Outcome results

Primary

Percent of Patients Initiating Vivitrol Treatment Who Receive 3 Consecutive Monthly Vivitrol Injections

Time frame: 4 months

Population: Per protocol

ArmMeasureValue (NUMBER)
Extended Release Injectable NaltrexonePercent of Patients Initiating Vivitrol Treatment Who Receive 3 Consecutive Monthly Vivitrol Injections40 Percent of participants

Source: ClinicalTrials.gov · Data processed: Mar 25, 2026