AzTrials
AzTrials

Cocaine DependencePhase 2NCT00654953

Clinical Efficacy of Sertraline Augmented With Gabapentin in Depressed, Recently Abstinent Cocaine-dependent Humans

A Phase 2 study testing sertraline and gabapentin in people with Cocaine Dependence and Depressive Symptoms, 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
Search all trials

Trial summary

To examine the clinical efficacy of sertraline (200 mg/day) alone or sertraline in combination with gabapentin. The purpose of this study is to examine whether the antidepressant sertraline alone or combined with gabapentin delays time to relapse relative to placebo in recently abstinent cocaine-dependent volunteers… Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Cocaine Dependence, Depressive Symptoms
What is being tested?
sertraline and gabapentin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
102 participants
Where
1 siteUnited States
Study dates
Jan 2006to May 2009
Phase
Phase 2
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

  • 18-65 years old
  • not currently enrolled in a treatment program
  • subjects must have a history of cocaine use, with street cocaine use by history being a minimum of 1 gram during the preceding 3 months
  • subjects must meet DSM-IV criteria for cocaine dependence as assessed by the substance abuse section of the Structured Clinical Interview for DSM-IV (SCID and SCID-SAC)
  • subjects must have laboratory confirmation of recent cocaine use (positive urine for cocaine or benzoylecgonine) during the month prior to study entry
  • subjects must score at least 15 on the Hamilton Depression Scale
  • women of childbearing age must have a negative pregnancy test to enroll in this study and must agree to monthly pregnancy testing

Who cannot join

  • current diagnosis of other drug or alcohol physical dependence (other than cocaine or tobacco)
  • ill health (e.g., major cardiovascular, renal, endocrine, hepatic disorder)
  • history of schizophrenia, or bipolar type I disorder
  • present or recent use of over-the-counter or prescription psychoactive drug or drug(s) that would be expected to have major interaction with drug to be tested
  • medical contraindication to receiving study medications (e.g., for sertraline, use of monoamine oxidase inhibitor within last two weeks; significant history of seizures; significant history of head trauma or serious neurological disorders)
  • current suicidality or psychosis
  • Liver function tests (i.e., liver enzymes) greater than three times normal levels
  • pregnancy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Arkansas for Medical Sciences

    Little Rock, Arkansas, 72205 7911

Other trials in United States

About this study

Official title: Sertraline Augmented With GABA Agents for Cocaine Dependence

To examine the clinical efficacy of sertraline (200 mg/day) alone or sertraline in combination with gabapentin. The purpose of this study is to examine whether the antidepressant sertraline alone or combined with gabapentin delays time to relapse relative to placebo in recently abstinent cocaine-dependent volunteers who are also depressed. In addition, whether depressive symptoms or genetic factors influence treatment response to the study medications will be examined. Our hypothesis is that those on combined sertraline-gabapentin will show a longer period of abstinence than those on sertraline alone or placebo.

Read the detailed description

Subjects enrolled in this 12-wk, double blind, randomized, placebo-controlled, clinical trial are admitted to a residential facility in North Little Rock (RCA-NLR) and randomized by depressive symptom severity to receive one of the following: sertraline alone (200 mg/day), sertraline (200 mg/day) plus gabapentin (1200 mg/day), or placebo. Subjects are expected to participate in the Substance Abuse Day Treatment Program while residing on the RCA-NLR and being inducted onto the maintenance dose of study medication (weeks 1-2). When participants transfer to the Outpatient Treatment Research Unit (TRU) at the start of their third week, they will continue to receive study medications or placebo (weeks 3-12) and they will be expected to participate in weekly individual cognitive behavioral therapy. Supervised urines and vital signs will be obtained thrice weekly; self-reported adverse effects, mood and drug use self-reports will be obtained once weekly. At the end of 12 weeks, participants will be tapered off the study medication over a five-day period, discharged from the study, and referred to an appropriate treatment or treatment/research program in the community if they are interested.

Being tested
sertraline, Placebo, gabapentin
Keywords
cocaine dependence, depressive symptoms, relapse, sertraline, gabapentin
Medical subject headings
Cocaine-Related Disorders, Depression, Recurrence

What participants receive

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

  • sertralineDrug

    Sertraline hydrochloride (200 mg/day) will be administered once daily. While subjects are at RCA-NLR they initially receive 50 mg/day of sertraline. This dose is gradually increased over a 3-week period until subjects receive 200 mg. When subjects are transferred to the outpatient program, they will be administered capsules once weekly, with take-home doses given in blister packs to take once a day for the rest of the week.

  • PlaceboDrug

    Placebo (cellulose or lactose) administered twice per day for 12 weeks.

  • gabapentinDrug

    Gabapentin (Neurontin; Parke-Davis; 1200 mg/day) will be administered twice daily. Initially, patients will receive 200 mg twice daily on days 1-5, 400 mg twice daily on days 6-10, then 600 mg twice daily on days 11 on. Subjects are then maintained on this dose for the duration of the trial, unless side-effects are too severe, in which case the dose of gabapentin is decreased to no less 800 mg/day. If symptoms persist, subjects' participation would then be terminated.

Study groups in NCT00654953
Study groupRoleWhat they receive
1Placebo comparatorPlacebo capsules
Receives: Drug: Placebo
2Experimentalsertraline (200 mg/day)
Receives: Drug: sertraline; Drug: Placebo
3Experimentalsertraline (200 mg/day) plus gabapentin (1,200 mg/day)
Receives: Drug: sertraline; Drug: gabapentin

What is being measured

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

  1. Urine Toxicology Screens for the Presence of Cocaine/Cocaine Metabolites

    Thrice-weekly urine samples were analyzed for the presence of cocaine/cocaine metabolite. Days to Relapse was defined as time to the second of two urine results consecutively positive for cocaine.

    Measured: 70 days

Timeline

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

  1. First posted9 Apr 2008 (estimated)
  2. Study startJan 2006
  3. Primary completionMay 2009
  4. Study completionMay 2009

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
102 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00654953
Sponsor's protocol ID
P50DA018197
Other IDs
P50DA018197, DPMCDA
Status last verified
Mar 2011
First submitted
4 Apr 2008
Last updated
25 Apr 2011
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing sertraline and gabapentin in people with Cocaine Dependence and Depressive Symptoms, 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 7 inclusion and 8 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 25 Apr 2011. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 25 Apr 2011). 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?

Urine Toxicology Screens for the Presence of Cocaine/Cocaine Metabolites (time frame: 70 days). 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 25 Apr 2011.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in