Trial Outcomes & Findings for Cognitive Enhancement and Relapse Prevention in Cocaine Addiction (NCT NCT01067846)

NCT ID: NCT01067846

Last Updated: 2013-11-26

Results Overview

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

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

85 participants

Primary outcome timeframe

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

Results posted on

2013-11-26

Participant Flow

Recruitment included outpatient and inpatient alcohol and drug abuse clinics, self-referrals, flyers in public places, and advertisements in newspapers. Recruitment started June 2010 and ended September 2011.

Enrolled participants could have been excluded due to other drug dependencies, loss of consciousness \> 10 min, neurologic disorder, severe hepatic insufficiency, significant cardiovascular disease, current psychiatric disorder, current medical illness, sensory impairment, positive pregnancy test.

Participant milestones

Participant milestones
Measure
DCS and Cognitive Behavioral Therapy
Subjects will receive 250 mg of Seromycin or D-cycloserine (DCS) prior to computerized cognitive behavioral therapy. Seromycin (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.
Placebo and Cognitive Behavioral Therapy
Subjects will receive a 250 mg identical looking placebo pill prior to computerized cognitive behavioral therapy. Placebo : 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.
Overall Study
STARTED
29
30
Overall Study
Completed 3 Tx Sessions
15
15
Overall Study
COMPLETED
10
11
Overall Study
NOT COMPLETED
19
19

Reasons for withdrawal

Reasons for withdrawal
Measure
DCS and Cognitive Behavioral Therapy
Subjects will receive 250 mg of Seromycin or D-cycloserine (DCS) prior to computerized cognitive behavioral therapy. Seromycin (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.
Placebo and Cognitive Behavioral Therapy
Subjects will receive a 250 mg identical looking placebo pill prior to computerized cognitive behavioral therapy. Placebo : 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.
Overall Study
Lost to Follow-up
17
19
Overall Study
Withdrawal by Subject
1
0
Overall Study
participation in other tx study
1
0

Baseline Characteristics

Cognitive Enhancement and Relapse Prevention in Cocaine Addiction

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
DCS and Cognitive Behavioral Therapy
n=29 Participants
Subjects will receive 250 mg of Seromycin or D-cycloserine (DCS) prior to computerized cognitive behavioral therapy. Seromycin (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.
Placebo and Cognitive Behavioral Therapy
n=30 Participants
Subjects will receive a 250 mg identical looking placebo pill prior to computerized cognitive behavioral therapy. Placebo : 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.
Total
n=59 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
29 Participants
n=5 Participants
30 Participants
n=7 Participants
59 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age Continuous
44 years
STANDARD_DEVIATION 6.67 • n=5 Participants
45 years
STANDARD_DEVIATION 9.13 • n=7 Participants
44 years
STANDARD_DEVIATION 7.97 • n=5 Participants
Sex: Female, Male
Female
7 Participants
n=5 Participants
4 Participants
n=7 Participants
11 Participants
n=5 Participants
Sex: Female, Male
Male
22 Participants
n=5 Participants
26 Participants
n=7 Participants
48 Participants
n=5 Participants
Region of Enrollment
United States
29 participants
n=5 Participants
30 participants
n=7 Participants
59 participants
n=5 Participants

PRIMARY outcome

Timeframe: 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

Population: Total possible urine samples = 225 per arm. Not all participants stayed in treatment, therefore the total units analyzed will not match the total possible.

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

Outcome measures

Outcome measures
Measure
DCS and Cognitive Behavioral Therapy
n=181 Urine Samples
Subjects will receive 250 mg of Seromycin or D-cycloserine (DCS) prior to computerized cognitive behavioral therapy. Seromycin (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.
Placebo and Cognitive Behavioral Therapy
n=188 Urine Samples
Subjects will receive a 250 mg identical looking placebo pill prior to computerized cognitive behavioral therapy. Placebo : 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.
Drug Abstinence During Treatment and at Follow up Visits
12 percentage of drug abstinences
25 percentage of drug abstinences

PRIMARY outcome

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

Population: Total possible sessions attended = 180 per arm. Some participants did not complete all sessions, therefore the units analyzed will not match the total possible.

Number of treatment visits attended prior to discontinuation of treatment

Outcome measures

Outcome measures
Measure
DCS and Cognitive Behavioral Therapy
n=149 Sessions Attended
Subjects will receive 250 mg of Seromycin or D-cycloserine (DCS) prior to computerized cognitive behavioral therapy. Seromycin (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.
Placebo and Cognitive Behavioral Therapy
n=150 Sessions Attended
Subjects will receive a 250 mg identical looking placebo pill prior to computerized cognitive behavioral therapy. Placebo : 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.
Treatment Retention - Number of Visits During Treatment
10 visits
Standard Deviation 3
10 visits
Standard Deviation 3

Adverse Events

DCS and Cognitive Behavioral Therapy

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Placebo and Cognitive Behavioral Therapy

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
DCS and Cognitive Behavioral Therapy
n=29 participants at risk
Subjects will receive 250 mg of Seromycin or D-cycloserine (DCS) prior to computerized cognitive behavioral therapy. Seromycin (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.
Placebo and Cognitive Behavioral Therapy
n=30 participants at risk
Subjects will receive a 250 mg identical looking placebo pill prior to computerized cognitive behavioral therapy. Placebo : 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.
Respiratory, thoracic and mediastinal disorders
cough
3.4%
1/29 • Number of events 1 • 1 year, 7 months
0.00%
0/30 • 1 year, 7 months
Nervous system disorders
headache
3.4%
1/29 • Number of events 1 • 1 year, 7 months
0.00%
0/30 • 1 year, 7 months
General disorders
nausea
3.4%
1/29 • Number of events 1 • 1 year, 7 months
0.00%
0/30 • 1 year, 7 months
Skin and subcutaneous tissue disorders
sensation on skin
0.00%
0/29 • 1 year, 7 months
3.3%
1/30 • Number of events 2 • 1 year, 7 months
Skin and subcutaneous tissue disorders
rash on skin
0.00%
0/29 • 1 year, 7 months
3.3%
1/30 • Number of events 2 • 1 year, 7 months

Additional Information

Clint Kilts, PhD

Brain Imaging Research Center

Phone: 526-8163

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place