Показаны сообщения с ярлыком кокаин. Показать все сообщения
Показаны сообщения с ярлыком кокаин. Показать все сообщения

четверг, 2 сентября 2010 г.

Вакцина от кокаиновой зависимости


Cocaine is a very simple molecule, but you can attach a simple molecule to a complex molecule and still trigger the immune system. You can use this method to develop antibodies to cocaine. When an individual uses cocaine, the antibodies will bind to the cocaine in the blood stream and the drug never reaches the brain because the molecule is now too large to pass the blood-brain barrier.



Pharmacotherapy for cocaine dependence: Most evidence is weak

Study

Design

Results

Disulfiram

Pani et al, 20108

Meta-analysis of 7 studies with 492 cocaine-dependent patients

Researchers found ‘low evidence’ supporting disulfiram for treating cocaine dependence

Modafinil

Dackis et al, 20059

62 cocaine-dependent patients randomized to modafinil, 400 mg/d, or placebo for 8 weeks

Patients receiving modafinil provided significantly more BE-negative urine samples and were significantly more likely to achieve ≥3 weeks of cocaine abstinence

Anderson et al, 200910

210 cocaine-dependent patients randomized to modafinil, 200 mg/d or 400 mg/d, or placebo for 12 weeks

Modafinil significantly reduced cocaine craving but did not significantly improve the average weekly percentage of cocaine non-use days

Tiagabine

Winhusen et al, 200711

141 cocaine-dependent patients randomized to tiagabine, 20 mg/d, or placebo for 12 weeks

No significant changes in cocaine use vs placebo as measured by self-report and urine BE

Baclofen

Kahn et al, 200912

Cocaine-dependent patients randomized to baclofen, 60 mg/d, or placebo for 8 weeks

No significant difference between groups in cocaine use as measured by urine BE

Ondansetron

Johnson et al, 200613

63 cocaine-dependent patients randomized to ondansetron, 0.25 mg, 1 mg, or 4 mg twice daily, or placebo for 10 weeks

The odansetron 4 mg group had a significantly greater rate of improvement in percentage of patients with a cocaine-free week compared with the placebo group

BE: benzoylecgonine



Vaccine for cocaine addiction: A promising new immunotherapy

вторник, 3 ноября 2009 г.

вигабатрин в терапии кокаиновой зависимости

OBJECTIVE: Cocaine dependence is associated with severe medical, psychiatric, and social morbidity, but no pharmacotherapy is approved for its treatment in the United States. The atypical antiepileptic vigabatrin ({gamma}-vinyl gamma-aminobutyric acid [GABA]) has shown promise in animal studies and open-label trials. The purpose of the present study was to assess the efficacy of vigabatrin for short-term cocaine abstinence in cocaine-dependent individuals. METHOD: Participants were treatment seeking parolees who were actively using cocaine and had a history of cocaine dependence. Subjects were randomly assigned to a fixed titration of vigabatrin (N=50) or placebo (N=53) in a 9-week double-blind trial and 4-week follow-up assessment. Cocaine use was determined by directly observed urine toxicology testing twice weekly. The primary endpoint was full abstinence for the last 3 weeks of the trial. RESULTS: Full end-of-trial abstinence was achieved in 14 vigabatrin-treated subjects (28.0%) versus four subjects in the placebo arm (7.5%). Twelve subjects in the vigabatrin group and two subjects in the placebo group maintained abstinence through the follow-up period. The retention rate was 62.0% in the vigabatrin arm versus 41.5% in the placebo arm. Among subjects who reported prestudy alcohol use, vigabatrin, relative to placebo, was associated with superior self-reported full end-of-trial abstinence from alcohol (43.5% versus 6.3%). There were no differences between the two groups in drug craving, depressed mood, anxiety, or Clinical Global Impression scores, and no group differences in adverse effects emerged. CONCLUSIONS: This first randomized, double-blind, placebo-controlled trial supports the safety and efficacy of short-term vigabatrin treatment of cocaine dependence.

Randomized, Double-Blind, Placebo-Controlled Trial of Vigabatrin for the Treatment of Cocaine Dependence in Mexican Parolees