A Study of Thienorphine Hydrochloride Tablets in Relapse Prevention Treatment of Opioid Dependence
Opioid Dependence
About this trial
This is an interventional treatment trial for Opioid Dependence focused on measuring opioid dependence, thienorphine hydrochloride
Eligibility Criteria
Inclusion Criteria:
Currently meets the diagnostic criteria for DSM-IV opioid dependence, with a history of opioids using more than 1 year; having relapsed for opioids for at least twice, and meets one of the following criterion:
1.1 Opioid dependent patients (including heroin dependent patients or patients undergoing methadone maintenance treatment) treated with buprenorphine and meeting the following criteria: 1.1.1 Taking buprenorphine 2 mg per day for at least 3 consecutive days; 1.1.2 Clinical Opioid Withdrawal Symptom Scale (COWS) score ≤ 4; 1.1.3 Negative urine test results for morphine and methadone; 1.2 Having been stopped to using opioids. Negative urine test results for morphine, methadone and buprenorphine. As well as negative result for naloxone-precipitated tests ((including patients returning to the community from drug rehabilitation agencies).
- Age 18 to 60 years old, male and female
- Weight 40 ~ 95kg
- Able to communicate with researchers, willing to receive anti-relapse therapy, and provide signed consent forms.
Exclusion Criteria:
- Substance dependence other than nicotine;
- Severe psychiatric disorders;
- Severe physical illnesses, including severe digestive, cardiovascular, respiratory, and endocrine systems problems;
- Patients with severe chronic pain;
- Women in pregnancy or lactation
- Patients who do not have effective contraception methods
- Systolic/diastolic pressure is higher than 150/100mmHg or lower than 85/60mmHg
- Heart rate <50 beats / min;
- Severe liver or kidney dysfunction or severe abnormalities confirmed by laboratory test (liver function indicators ALT, AST are more than 3 times higher than the upper limit of normal values; any of the renal function indicators BUN, Cr that is higher than the upper limit of normal 1.5 times and above);
- Allergic to buprenorphine or other similar drugs;
- Patients with dysuria or urinary retention symptoms;
- People with severe habitual constipation;
- Those with HIV infection;
- Poor adherence;
- Participants enrolled in other clinical trials within 4 weeks prior to enrollment.
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Placebo Comparator
0.2mg group
0.5mg group
placebo control group
Participants are taking 0.2mg thienorphine hydrochloride table once a day for 12 weeks.
Participants are taking 0.5mg thienorphine hydrochloride table once a day for 12 weeks.
Participants only taking placebo once a day for 12 weeks.