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Cocaine AddictionNCT01067846

Cognitive Enhancement and Relapse Prevention in Cocaine Addiction

A study testing Seromycin (D-cycloserine, DCS) and Computerized Cognitive Behavioral Therapy in people with Cocaine Addiction, run by University of Arkansas at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

For this project, the investigators are interested in exploring a new way to extend and maintain drug abstinence in people who are addicted to crack cocaine. This study will combine a medication called D-Cycloserine (DCS) and weekly cognitive behavioral therapy (CBT) to assess whether the combination will enhance… Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Cocaine Addiction
What is being tested?
Seromycin (D-cycloserine, DCS) and Computerized Cognitive Behavioral Therapy
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
85 participants
Where
1 siteUnited States
Study dates
Jun 2010to Jan 2012
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Eligible subjects must be cocaine-dependent persons between 18 and 65 years

Who cannot join

  • Any current Axis-I psychiatric diagnosis other than cocaine or alcohol dependence or nicotine use
  • Any current or prior neurological disease, history of a major medical illness, or current use of psychotropic medications
  • Positive history of loss of consciousness of greater than 10 min
  • Significant current or prior cardiovascular disease (hypertension, arrhythmias) that is not medically stable
  • History of hospitalization within the previous six months for a medical illness
  • Deafness, blindness or other significant sensory impairment.
  • Contraindications for D-cycloserine and magnetic resonance imaging.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Psychiatric Research Institute (PRI) (Center for Addiction Research (CAR) and Brain Imaging Research Center (BIRC)) University of Arkansas for Medical Sciences

    Little Rock, Arkansas, 72205

Other trials in United States

About this study

Official title: The Clinical and Neural Response of Cocaine Addicts to Combination Treatment With a Cognitive Enhancer and Extinction-Based Psychotherapy

For this project, the investigators are interested in exploring a new way to extend and maintain drug abstinence in people who are addicted to crack cocaine. This study will combine a medication called D-Cycloserine (DCS) and weekly cognitive behavioral therapy (CBT) to assess whether the combination will enhance people's ability to stay clean (drug free) for longer periods of time.

One of the greatest risks for drug relapse is drug craving. Oftentimes drug craving occurs when a person is confronted with stressors and reminders of past drug use behavior. DCS has been shown to enhance the learning of new information. By administering DCS prior to learning new techniques such as how to cope with drug craving and drug-use reminders, it is possible that patients can be more successful at living a drug free life for a longer period of time.

In addition to exploring this model behaviorally, the investigators will explore changes that may occur in the brain before and after the therapy/medication intervention. A technique called MRI (Magnetic Resonance Imaging) will be used to identify areas of the brain that are being activated during an attention task. Areas of neural activation will be assessed at study entry, end of therapy (4-week endpoint) and one month following completion of the treatment program.

Read the detailed description

Primary Hypothesis:

Enhancing glutamatergic neurotransmission with DCS facilitates CBT-related relapse prevention by potentiating the behavioral and neural representation of the diminished drug motivation associated with cocaine cues.

Specific Aims:

  1. Determine if the short-term oral administration of DCS relative to placebo prior to CBT sessions facilitates cocaine abstinence and functional recovery, and reduces cocaine craving in treatment-seeking cocaine addicts.
  2. Determine if DCS administration relative to placebo facilitates CBT-related decreases in the behavioral and neural response to conditioned cocaine cues.
Being tested
Seromycin (D-cycloserine, DCS), Placebo, Computerized Cognitive Behavioral Therapy
Keywords
cocaine dependence, relapse prevention, computerized cognitive behavioral therapy (CBT), D-cycloserine (DCS)
Medical subject headings
Cocaine-Related Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Seromycin (D-cycloserine, DCS)Drug

    Also called D-cycloserine, DCS

    250 mg DCS once weekly for 4 weeks prior to the initiation of a Computerized Cognitive Behavioral Therapy (CBT) session for drug relapse intervention.

  • PlaceboDrug

    Placebo identical looking to the 250 mg DCS once weekly for 4 weeks prior to the initiation of a Computerized Cognitive Behavioral Therapy (CBT) session for drug relapse intervention.

  • Computerized Cognitive Behavioral TherapyBehavioural

    All participants received Computerized Cognitive Behavioral Therapy sessions 3 times per week for 4 weeks as a drug relapse intervention.

Study groups in NCT01067846
Study groupRoleWhat they receive
DCS and Cognitive Behavioral TherapyExperimentalSubjects will receive 250 mg of Seromycin or D-cycloserine (DCS) prior to computerized cognitive behavioral therapy.
Receives: Drug: Seromycin (D-cycloserine, DCS); Behavioral: Computerized Cognitive Behavioral Therapy
Placebo and Cognitive Behavioral TherapyPlacebo comparatorSubjects will receive a 250 mg identical looking placebo pill prior to computerized cognitive behavioral therapy.
Receives: Drug: Placebo; Behavioral: Computerized Cognitive Behavioral Therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Drug Abstinence During Treatment and at Follow up Visits

    Percentage of the overall number of drug abstinences of participants measured by urine drug testing

    Measured: Participants provided urine samples for drug testing during treatment which occurred 3 times per week for 4 weeks, at the end of treatment, and at a 1 and 2 month follow up visit

  2. Treatment Retention - Number of Visits During Treatment

    Number of treatment visits attended prior to discontinuation of treatment

    Measured: Treatment sessions included 3 visits per week for 4 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Feb 2010 (estimated)
  2. Study startJun 2010
  3. Primary completionJan 2012
  4. Study completionJan 2012

Resources

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
85 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01067846
Sponsor's protocol ID
111989
Other IDs
R21DA025243
Status last verified
Oct 2013
First submitted
10 Feb 2010
Last updated
26 Nov 2013
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Seromycin (D-cycloserine, DCS) and Computerized Cognitive Behavioral Therapy in people with Cocaine Addiction, run by University of Arkansas 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 7 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 26 Nov 2013. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 26 Nov 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Drug Abstinence During Treatment and at Follow up Visits (time frame: Participants provided urine samples for drug testing during treatment which occurred 3 times per week for 4 weeks, at the end of treatment, and at a 1 and 2 month follow up visit). The study lists 2 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 26 Nov 2013.

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