667
Participants
Start Date
November 2, 2020
Primary Completion Date
June 30, 2024
Study Completion Date
March 31, 2025
High intensity contingency management
Participants receive 12 weeks of contingency management.
Low intensity contingency management
Participants receive 6 weeks of contingency management and 6 weeks of group education.
SMS reminders
Participants receive two daily SMS reminders plus one weekly self-monitoring assessment.
Matrix only
Participants attend 12 weekly Matrix group counseling sessions.
Matrix + Contingency management
Participants attend 12 weekly Matrix group counseling sessions plus 12 weeks of contingency management.
Hai Ba Trung methadone clinic, Hanoi
Long Bien methadone clinic, Hanoi
Nam Tu Liem Methadone clinic, Hanoi
District 4 Methadone clinic, Ho Chi Minh City
University of California, Los Angeles
OTHER
University of Medicine and Pharmacy at Ho Chi Minh City
OTHER
Hanoi Medical University
OTHER