Completed
Dextroamphetamine as Adjunct in Cocaine/Opiate Dependent Patients - 3
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What is being tested
Dextroamphetamine
Drug
Who is being recruted
Cocaine-Related Disorders
+ Opioid-Related Disorders
From 18 to 45 Years
See all eligibility criteria
How is the trial designed
Treatment Study
Phase 2
Interventional
Study Start: September 1994
See protocol details
Summary
Principal SponsorNational Institute on Drug Abuse (NIDA)
Last updated: January 12, 2017
Sourced from a government-validated database.Claim as a partner
Study start date: September 1, 1994Actual date on which the first participant was enrolled.
The purpose of this study is to evaluate dextroamphetamine sulfate (sustained release) as an adjunct in concurrent cocaine and opiate dependent patients. This 27-week double-blind, placebo controlled treatment is designed to evaluate dextroamphetamine sulfate (sustained release) as an adjunct in concurrent cocaine and opiate dependent patients. All subjects will receive methadone. For the treatment of cocaine dependence, subjects will receive one of 2 doses of dextroamphetamine (15 or 30mg) or placebo. After 4 weeks of treatment the dose level of dextroamphetamine is doubled (30 or 60mg). This dose is maintained for 20 weeks; during which subjects attend twice weekly visits to the clinic and receive weekly cognitive behavioral therapy. Follow up evaluations will be conducted out to 3 months post treatment. Subjects will be assisted in transferring to Houston area methadone clinics to maintain treatment for opiate dependence following treatment completion.
Principal SponsorNational Institute on Drug Abuse (NIDA)
Last updated: January 12, 2017
Sourced from a government-validated database.Claim as a partner
Protocol
This section provides details of the study plan, including how the study is designed and what the study is measuring.Design Details
140 patients to be enrolledTotal number of participants that the clinical trial aims to recruit.
Treatment Study
These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.
How participants are assigned to different groups/arms
In this clinical study, participants are placed into groups randomly, like flipping a coin. This ensures that the study is fair and unbiased, making the results more reliable. By assigning participants by chance, researchers can better compare treatments without external influences.
Other Ways to Assign Participants
Non-randomized allocation: Participants are assigned based on specific factors, such as their medical condition or a doctor's decision.
None (Single-arm trial): If the study has only one group, all participants receive the same treatment, and no allocation is needed.
In this clinical study, participants are placed into groups randomly, like flipping a coin. This ensures that the study is fair and unbiased, making the results more reliable. By assigning participants by chance, researchers can better compare treatments without external influences.
Other Ways to Assign Participants
Non-randomized allocation: Participants are assigned based on specific factors, such as their medical condition or a doctor's decision.
None (Single-arm trial): If the study has only one group, all participants receive the same treatment, and no allocation is needed.
How treatments are given to participants
In this study, all participants receive the same treatment. This approach is often used to evaluate the effects of a single intervention without comparing it to another.
Other Ways to Assign Treatments
Parallel assignment: Participants are split into separate groups, each receiving a different treatment.
Cross-over assignment: Participants switch between treatments during the study.
Factorial assignment: Participants receive different combinations of treatments.
Sequential assignment: Participants receive treatments one after another in a specific order, possibly based on individual responses.
Other assignment: Treatment assignment does not follow a standard or predefined design.
In this study, all participants receive the same treatment. This approach is often used to evaluate the effects of a single intervention without comparing it to another.
Other Ways to Assign Treatments
Parallel assignment: Participants are split into separate groups, each receiving a different treatment.
Cross-over assignment: Participants switch between treatments during the study.
Factorial assignment: Participants receive different combinations of treatments.
Sequential assignment: Participants receive treatments one after another in a specific order, possibly based on individual responses.
Other assignment: Treatment assignment does not follow a standard or predefined design.
How the interventions assigned to participants is kept confidential
Neither participants nor researchers know who is receiving which treatment. This is the most rigorous way to reduce bias, ensuring that expectations do not influence the results.
Other Ways to Mask Information
Open-label: Everyone knows which treatment is being given.
Single-blind: Participants do not know which treatment they are receiving, but researchers do.
Triple-blind: Participants, researchers, and outcome assessors do not know which treatment is given.
Quadruple-blind: Participants, researchers, outcome assessors, and care providers all do not know which treatment is given.
Neither participants nor researchers know who is receiving which treatment. This is the most rigorous way to reduce bias, ensuring that expectations do not influence the results.
Other Ways to Mask Information
Open-label: Everyone knows which treatment is being given.
Single-blind: Participants do not know which treatment they are receiving, but researchers do.
Triple-blind: Participants, researchers, and outcome assessors do not know which treatment is given.
Quadruple-blind: Participants, researchers, outcome assessors, and care providers all do not know which treatment is given.
Eligibility
Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.Conditions
Criteria
Any sexBiological sex of participants that are eligible to enroll.
From 18 to 45 YearsRange of ages for which participants are eligible to join.
Healthy volunteers allowedIf individuals who are healthy and do not have the condition being studied can participate.
Conditions
Pathology
Cocaine-Related Disorders
Opioid-Related Disorders
Criteria
Ensure optimum compatibilityAdd your profile to know your probability eligibility score.
Study Plan
Find out more about all the medication administered in this study, their detailed description and what they involve.Study Objectives
Study Objectives
Primary Objectives
Secondary Objectives
Study Centers
These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.This study has 1 location
Suspended
CompletedOne Study Center