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Extended Release Naltrexone for Treating Amphetamine Dependence in Iceland

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University of Pennsylvania

Status and phase

Completed
Phase 3

Conditions

Amphetamine Dependence

Treatments

Drug: VIVITROL injection and VIVITROL Placebo Injection , 24 weeks

Study type

Interventional

Funder types

Other
NIH

Identifiers

NCT01100853
2009-013647-10 (EudraCT Number)
811095
P50DA012756 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

Until positive results were found with oral naltrexone, no medication has been effective against amphetamine dependence. The primary aim of this pilot study is to replicate the findings of the Swedish team that showed oral Naltrexone prevented relapse to amphetamine addiction and to extend their results by randomizing treatment-seeking amphetamine addicted patients to a 6 month course of VIVITROL (naltrexone for extended-release injectable suspension) or VIVITROL placebo. Patients in each group will receive drug counseling. VIVITROL is administered monthly and may be a better test of efficacy than tablets that must be taken daily.

Enrollment

100 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. Age 18 or above;
  2. Diagnosis of amphetamine dependence as defined by DSM-IV-TR with 10 or more days of amphetamine use in the past month, and patient and clinician identify amphetamine dependence as the main problem;
  3. Abstinent from substances (alcohol, amphetamines, cannabinoid, cocaine, hallucinogens, opioids, benzodiazepines [unless used to treat alcohol withdrawal] for at least 7 days prior to receiving study drug or placebo;
  4. Provision of telephone numbers/contacts of three or more people that are likely to know where can be located if unable to be contacted directly;
  5. Successfully complete 7-10 day assessment and study baseline measures at Vogur

Exclusion criteria

  1. Any liver test >5 times the top limit of normal; Physiologically dependent on opioids or other substances (nicotine excepted) at time of admission to Vogur;
  2. Suspected or known concomitant use of opioid analgesics, positive opioid urine drug test or positive naloxone challenge:
  3. Schizophrenia, Bipolar I or other non-substance related psychotic disorder; Severely depressed, suicidal or homicidal: Dementia: Inability to understand the informed consent;
  4. Planning to move from the Reykjavík area or enter jail within the next 12 months;
  5. Likely to receive opioid analgesics in next 6 months associated with possible or scheduled surgery or procedure;
  6. Known hypersensitivity to naltrexone, polyactide-co-glycolide (PLG); carboxymethylcellulose, or any other component of the diluent;
  7. Female subjects who are pregnant or lactating, or of child bearing potential who are not using acceptable methods of birth control;
  8. A body habitus that precludes use of the customized needle for intramuscular injection, based on clinical judgment;
  9. Use of an investigational agent in the past 30 days

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

100 participants in 2 patient groups, including a placebo group

Extended release VIVITROL injection 380 mg, 24 weeks
Active Comparator group
Description:
Efficacy of 24 week course of Extended Release VIVITROL 380 mg with counseling as compared to 24 week course of VIVITROL placebo with counseling (monthly injections)
Treatment:
Drug: VIVITROL injection and VIVITROL Placebo Injection , 24 weeks
VIVITROL placebo injection, 24 weeks
Placebo Comparator group
Description:
Efficacy of 24 week course of VIVITROL with counseling as compared to 24 week course of VIVITROL placebo with counseling (monthly injections)
Treatment:
Drug: VIVITROL injection and VIVITROL Placebo Injection , 24 weeks

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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