Suspended

Interaction Between IV Cocaine and Quetiapine

0 criteria met from your profileSee at a glance how your profile meets each eligibility criteria.
What is being tested

Data Collection

Who is being recruted

Mental Disorders
+1

+ Substance-Related Disorders
+ Cocaine-Related Disorders
From 18 to 45 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 1
Interventional
Study Start: October 2003
See protocol details

Summary

Principal SponsorNational Institute on Drug Abuse (NIDA)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner
Study start date: October 1, 2003Actual date on which the first participant was enrolled.

A placebo-controlled, double-blind, inpatient assessment of interaction between intravenous cocaine and quetiapine (seroquel) in cocaine-experienced subjects. To assess the safety of IV cocaine in subjects taking quetiapine at 3 dosage levels.

Official TitleInteraction Between IV Cocaine and Quetiapine 
NCT00087750
Principal SponsorNational Institute on Drug Abuse (NIDA)
Last updated: January 14, 2026
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
12 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.

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.

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 not allowedIf individuals who are healthy and do not have the condition being studied can participate.
Conditions
Pathology
Mental Disorders
Substance-Related Disorders
Cocaine-Related Disorders
Chemically-Induced Disorders
Criteria

Inclusion Criteria: Includes but is not limited to: non-treatment seeking individuals. Must meet DSM-IV criteria for cocaine abuse or dependence. Must be able to verbalize understanding of consent and provide written informed consent and verbalize willingness to complete study procedures. Site will provide further details. Exclusion Criteria: Please contact site for further information

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

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
Boston University Medical CenterBoston, United StatesSee the location
SuspendedOne Study Center
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