Cocaine-Related DisordersPhase 1NCT00000292
Acute Withdrawal From Smoked Cocaine - 9
A Phase 1 study testing Cocaine in people with Cocaine-Related Disorders and Substance Withdrawal Syndrome, run by National Institute on Drug Abuse (NIDA) at 1 site in United States.
Trial summary
The purpose of this study is to develop an experimental paradigm to examine acute withdrawal symptoms from cocaine. Read more about this study
- Who is it for?
- Ages 21 to 45 years
- Conditions the study is for
- Cocaine-Related Disorders, Substance Withdrawal Syndrome, Substance-Related Disorders
- What is being tested?
- Cocaine
- Type of treatment
- Surgery or procedure
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- Apr 1996to Dec 2001
- Phase
- Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 21 to 45 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- M/F ages 21-45 with a history of smoked cocaine use at least twice a week for the past six months, including 0.5 g of cocaine in a 24hr period on at least one occasion. In good health as evidenced by physical exam and complete blood count, chest X-ray and electrolyte and liver function tests, with a normal resting 12-lead electrocardiograph (ECG) and blood pressure of less than 140/90 mmHg. Using an acceptable method of birth control. Having a urine toxicology screen positive for cocaine metabolites.
Who cannot join
- Any DSM-IV Axis I disorder other than cocaine abuse or dependence, or dependence or daily use of psychoactive drugs other than nicotine or caffeine. A history of violence and/or currently on probation, parole or awaiting trial. Pregnant as determined by serum pregnancy screen, lactating or having delivered a child in the past 12 months. Seropositive tests for the human immunodeficiency virus (HIV) or hepatitis B. History of seizure disorder.
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Minnesota
Minneapolis, Minnesota, 55455
About this study
Official title: Acute Withdrawal From Smoked Cocaine
The purpose of this study is to develop an experimental paradigm to examine acute withdrawal symptoms from cocaine.
Read the detailed description
Although there are clearly identifiable withdrawal syndromes following cessation of a number of abused drugs such as alcohol and heroin, it is unclear whether a withdrawal syndrome follows the cessation of crack cocaine. A laboratory model of withdrawal from smoked (crack) cocaine would provide a safe and systematic method of testing the efficacy of behavioral or pharmacological treatments for withdrawal symptoms following cocaine smoking cessation. Therefore, this study investigated acute behavioral, subjective, and physiological withdrawal symptomatology for 6 hrs following 7 deliveries of 2 dose sized (0.07 vs. 0.4 mg/kg) of smoked cocaine. The behavioral measure was performance on a computerized reaction time task, subjective measures included participant and observer ratings of mood and withdrawal symptomatology, and physiological measures comprised heart rate and blood pressure. It was hypothesized that signs and symptoms of withdrawal from smoked cocaine would be greater following the 0.4 mg/kg dose size, compared to the 0.07 mg/kg dose size.
- Being tested
- Cocaine
- Medical subject headings
- Cocaine-Related Disorders, Substance Withdrawal Syndrome, Substance-Related Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CocaineProcedure or surgery
What is being measured
The primary outcome is the main question the study is designed to answer.
Behavioral
Subjective
Physiological measures
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Sep 1999 (estimated)
- Study startApr 1996
- Study completionDec 2001
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cocaine-Related DisordersStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Masking
- Double blind
- Enrolment
- 0 participants
Sponsor and investigators
- Lead sponsor
- National Institute on Drug Abuse (NIDA)
- Sponsor type
- US National Institutes of Health
- Collaborators
- University of Minnesota
- Investigators
- Dorothy Hatsukami, Ph.D., Principal investigator, University of Minnesota
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00000292
- Sponsor's protocol ID
- NIDA-09259-9
- Other IDs
- P50-09259-9
- Status last verified
- Apr 1996
- First submitted
- 20 Sep 1999
- Last updated
- 12 Jan 2017
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 12 Jan 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Acute Withdrawal From Smoked Cocaine
- ClinicalTrials.gov ID
- NCT00000292
- Acronym / sponsor ID
- NIDA-09259-9
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 0 participants
- Lead sponsor
- National Institute on Drug Abuse (NIDA)US National Institutes of Health
- Collaborators
- University of Minnesota
- Study start
- Apr 1996
- Study completion
- Dec 2001
- First posted
- 21 Sep 1999 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to develop an experimental paradigm to examine acute withdrawal symptoms from cocaine.
Detailed description
Although there are clearly identifiable withdrawal syndromes following cessation of a number of abused drugs such as alcohol and heroin, it is unclear whether a withdrawal syndrome follows the cessation of crack cocaine. A laboratory model of withdrawal from smoked (crack) cocaine would provide a safe and systematic method of testing the efficacy of behavioral or pharmacological treatments for withdrawal symptoms following cocaine smoking cessation. Therefore, this study investigated acute behavioral, subjective, and physiological withdrawal symptomatology for 6 hrs following 7 deliveries of 2 dose sized (0.07 vs. 0.4 mg/kg) of smoked cocaine. The behavioral measure was performance on a computerized reaction time task, subjective measures included participant and observer ratings of mood and withdrawal symptomatology, and physiological measures comprised heart rate and blood pressure. It was hypothesized that signs and symptoms of withdrawal from smoked cocaine would be greater following the 0.4 mg/kg dose size, compared to the 0.07 mg/kg dose size.
Study design
- Primary purpose
- Treatment
- Masking
- Double blind
Who may qualify
- Ages
- 21 to 45 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- M/F ages 21-45 with a history of smoked cocaine use at least twice a week for the past six months, including 0.5 g of cocaine in a 24hr period on at least one occasion. In good health as evidenced by physical exam and complete blood count, chest X-ray and electrolyte and liver function tests, with a normal resting 12-lead electrocardiograph (ECG) and blood pressure of less than 140/90 mmHg. Using an acceptable method of birth control. Having a urine toxicology screen positive for cocaine metabolites.
Key exclusion criteria (1 listed)
- Any DSM-IV Axis I disorder other than cocaine abuse or dependence, or dependence or daily use of psychoactive drugs other than nicotine or caffeine. A history of violence and/or currently on probation, parole or awaiting trial. Pregnant as determined by serum pregnancy screen, lactating or having delivered a child in the past 12 months. Seropositive tests for the human immunodeficiency virus (HIV) or hepatitis B. History of seizure disorder.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Cocaine | Procedure or surgery | – |
Primary outcome
Behavioral
Subjective
Physiological measures
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Jan 2017.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Dorothy Hatsukami, Ph.D. principal investigator
University of Minnesota
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Cocaine in people with Cocaine-Related Disorders and Substance Withdrawal Syndrome, run by National Institute on Drug Abuse (NIDA) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 12 Jan 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Behavioral. The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Jan 2017.