Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Caffeine and Cocaine

ClinicalTrials.gov ID: NCT00733993

Public ClinicalTrials.gov record NCT00733993. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jun 26, 2026, 8:02 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Experiment 1: Adenosine Receptor A2A Antagonists and Cocaine Dependence

Study identification

NCT ID
NCT00733993
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1, Phase 2
Lead sponsor
Virginia Commonwealth University
Other
Enrollment
23 participants

Conditions and interventions

Interventions

  • Caffeine 150 MG Drug
  • Placebo Drug
  • Amphetamine Drug
  • Caffeine 300 MG Drug

Drug

Eligibility (public fields only)

Age range
18 Years to 55 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 31, 2008
Primary completion
Jun 30, 2011
Completion
Sep 30, 2011
Last update posted
Mar 21, 2017

2008 – 2011

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
The University of Texas Health Science Center, Houston Houston Texas 77030

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00733993, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 21, 2017 · Synced Jun 26, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00733993 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →