Cocaine: An Updated Overview on Chemistry, Detection, Biokinetics, and Pharmacotoxicological Aspects including Abuse Pattern.
Rita Roque Bravo, Ana Carolina Faria, Andreia Machado Brito-da-Costa...
https://pubmed.ncbi.nlm.nih.gov/35448887Actively Recruiting
Led by University of Sao Paulo General Hospital · Updated on 2026-02-24
36
Participants Needed
1
Research Sites
52 weeks
Total Duration
Researchers are evaluating the effects of two medications, clonidine and clonazepam, on reducing cravings in patients with cocaine and crack use disorder. This randomized clinical trial focuses on inpatients who meet the diagnosis criteria for these disorders and are voluntarily seeking treatment. The study is conducted by the University of Sao Paulo General Hospital and aims to compare the craving reduction potential of clonidine against an active placebo, clonazepam. Participants will receive either clonidine 0.1 mg or clonazepam 0.25 mg every 12 hours for the first two weeks of the study. Medication will be given under nursing supervision, followed by a two-week washout period without medication. Vital signs will be monitored three times daily during the treatment phase to observe any medication-related changes such as heart rate or blood pressure alterations. During the study, patients will regularly complete assessments measuring cocaine craving using the Visual Analog Scale from enrollment through two weeks of treatment and at 30, 60, and 90 days after treatment ends. Additional evaluations include monitoring adverse effects, blood pressure, heart rate, and clinical impressions of illness severity and improvement. Cocaine and crack use will also be tracked up to 90 days post-treatment. The total duration of participation includes treatment and follow-up periods extending over several months.
CONDITIONS
Efficacy of Clonidine in Reducing Craving in Inpatients With Cocaine and Crack Use Disorder
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Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - 2 weeks
Participants receive either clonidine 0.1 mg or clonazepam 0.25 mg every 12 hours for 2 weeks under nursing supervision. Vital signs are monitored three times daily to track medication effects.
Daily visits for up to 2 weeks with three daily vital sign checks
Duration - 90 days
Participants are followed for 90 days after treatment to assess craving levels, adverse effects, and substance use.
Visits at 30, 60, and 90 days after treatment
Total: 1 location
1
Instituto Perdizes
São Paulo, São Paulo, Brazil, 05021-001
Actively Recruiting
D
Dangela Lassi
Study Type
INTERVENTIONAL
Masking
QUADRUPLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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Rita Roque Bravo, Ana Carolina Faria, Andreia Machado Brito-da-Costa...
https://pubmed.ncbi.nlm.nih.gov/35448887