The hospital where this study will be conducted is responsible for the one-year contingency management treatment for methamphetamine drug offenders referred from the Yunlin District Prosecutors Office. Completing the one-year treatment is prerequisite for offenders to get slow prosecutions. It is an open-label, parallel-group trial comparing the combination of psychosocial intervention and slow prosecutions with psychosocial intervention alone in treating subjects with methamphetamine dependence Study Hypothesis 1. Psychosocial interventions in combination with slow prosecutions is more effective than psychosocial interventions alone to achieve abstinence for subjects with methamphetamine abuse/dependance. 2. Inclusion of telephone reminding before each visit will enhance the retention rate and abstinence rate.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
60
The treatment is one-year long and composed of 3 stages of psychosocial intervention. Subjects of TSTSU arms receive urine methamphetamine examinations at each visit, while subjects in OPD arm being tested at first/last visits and during stage changes. -Stage 1, early intensive monitoring stage: The visit interval is 1 week. If the urine tests and self-report on methamphetamine use are negative for consecutive 4 visits, subjects can proceed to stage 2. (In OPD arm, the visit interval can be 2 weeks according to subjects' requirements.) -Sage 2, late intensive monitoring stage: The visit interval is 2 week. If the urine tests and self-reports are straightly negative for 4 visits, subjects can proceed to stage 3. Whenever recent methamphetamine is detected, subjects should move back to stage 1. -Stage 3, usual monitoring stage: The visit interval is 1 month until the end of treatment. Whenever recent methamphetamine is detected, subjects should move back to stage 1.
Subjects in TSTSU-T group will receive addition telephone reminding one day before each visit. Each call will be no longer than five minutes. On the telephone, brief motivation enhancement may be conducted.
National Taiwan University Hospital Yunlin Branch
Yunlin, Taiwan, Taiwan
Endpoint abstinence rate
According to the urine amphetamine/methamphetamine screen after the one-year treatment, negative result suggests successful abstinence.
Time frame: At the end of one-year treatment
Retention rate
proportion of subjects who can complete the course of one-year treatment
Time frame: during the whole one-year treatment
Length of retention
the averaged duration of attending treatment
Time frame: during the whole one-year treatment
The longest period of abstinence
the longest period of time with successive negative results of urine amphetamine/methamphetamine tests or negative reports of recent methamphetamine use
Time frame: during the whole one-year treatment
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