A phase 3 randomised double-blind placebo-controlled trial of mirtazapine as a pharmacotherapy for methamphetamine use disorder: a study protocol for the Tina Trial.
Humans
Mirtazapine
/ therapeutic use
Double-Blind Method
Amphetamine-Related Disorders
/ drug therapy
Methamphetamine
/ adverse effects
Adult
Middle Aged
Adolescent
Clinical Trials, Phase III as Topic
Male
Young Adult
Randomized Controlled Trials as Topic
Aged
Female
Treatment Outcome
Multicenter Studies as Topic
Australia
Time Factors
Medication Adherence
Antidepressive Agents, Tricyclic
/ therapeutic use
Addiction
Clinical trial
Depression
Methamphetamine
Mirtazapine
Pharmacotherapy
Psychiatry
Sleep
Substance use disorders
Treatment
Journal
Trials
ISSN: 1745-6215
Titre abrégé: Trials
Pays: England
ID NLM: 101263253
Informations de publication
Date de publication:
22 Jun 2024
22 Jun 2024
Historique:
received:
01
03
2024
accepted:
10
06
2024
medline:
22
6
2024
pubmed:
22
6
2024
entrez:
21
6
2024
Statut:
epublish
Résumé
There are no approved pharmacotherapies for methamphetamine use disorder. Two preliminary phase 2 randomised controlled trials have found mirtazapine, a tetracyclic antidepressant, to be effective in reducing methamphetamine use. The proposed Tina Trial is the first phase 3 placebo-controlled randomised trial to examine the effectiveness and safety of mirtazapine as an outpatient pharmacotherapy for methamphetamine use disorder. This is a multi-site phase 3 randomised, double-blind, placebo-controlled parallel trial. Participants are randomly allocated (1:1) to receive either mirtazapine (30 mg/day for 12 weeks) or matched placebo, delivered as a take-home medication. The target population is 340 people aged 18-65 years who have moderate to severe methamphetamine use disorder. The trial is being conducted through outpatient alcohol and other drug treatment clinics in Australia. The primary outcome is measured as self-reported days of methamphetamine use in the past 4 weeks at week 12. Secondary outcomes are methamphetamine-negative oral fluid samples, depressive symptoms, sleep quality, HIV risk behaviour and quality of life. Other outcomes include safety (adverse events), tolerability, and health service use. Medication adherence is being monitored using MEMS® Smart Caps fitted to medication bottles. This trial will provide information on the safety and effectiveness of mirtazapine as a pharmacotherapy for methamphetamine use disorder when delivered as an outpatient medication in routine clinical practice. If found to be safe and effective, this trial will support an application for methamphetamine use disorder to be included as a therapeutic indication for the prescription of mirtazapine. Australian and New Zealand Clinical Trials Registry ACTRN12622000235707. Registered on February 9, 2022.
Sections du résumé
BACKGROUND
BACKGROUND
There are no approved pharmacotherapies for methamphetamine use disorder. Two preliminary phase 2 randomised controlled trials have found mirtazapine, a tetracyclic antidepressant, to be effective in reducing methamphetamine use. The proposed Tina Trial is the first phase 3 placebo-controlled randomised trial to examine the effectiveness and safety of mirtazapine as an outpatient pharmacotherapy for methamphetamine use disorder.
METHODS
METHODS
This is a multi-site phase 3 randomised, double-blind, placebo-controlled parallel trial. Participants are randomly allocated (1:1) to receive either mirtazapine (30 mg/day for 12 weeks) or matched placebo, delivered as a take-home medication. The target population is 340 people aged 18-65 years who have moderate to severe methamphetamine use disorder. The trial is being conducted through outpatient alcohol and other drug treatment clinics in Australia. The primary outcome is measured as self-reported days of methamphetamine use in the past 4 weeks at week 12. Secondary outcomes are methamphetamine-negative oral fluid samples, depressive symptoms, sleep quality, HIV risk behaviour and quality of life. Other outcomes include safety (adverse events), tolerability, and health service use. Medication adherence is being monitored using MEMS® Smart Caps fitted to medication bottles.
DISCUSSION
CONCLUSIONS
This trial will provide information on the safety and effectiveness of mirtazapine as a pharmacotherapy for methamphetamine use disorder when delivered as an outpatient medication in routine clinical practice. If found to be safe and effective, this trial will support an application for methamphetamine use disorder to be included as a therapeutic indication for the prescription of mirtazapine.
TRIAL REGISTRATION
BACKGROUND
Australian and New Zealand Clinical Trials Registry ACTRN12622000235707. Registered on February 9, 2022.
Identifiants
pubmed: 38907288
doi: 10.1186/s13063-024-08238-y
pii: 10.1186/s13063-024-08238-y
doi:
Substances chimiques
Mirtazapine
A051Q2099Q
Methamphetamine
44RAL3456C
Antidepressive Agents, Tricyclic
0
Types de publication
Clinical Trial Protocol
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
408Subventions
Organisme : Medical Research Future Fund (AU)
ID : 2007155
Informations de copyright
© 2024. The Author(s).
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