The Effect of Glutamatergic Modulation on Cocaine Self-administration

NCT ID: NCT02596022

Last Updated: 2018-06-15

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE2
• Total Enrollment: 18 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2013-06-30
• Study Completion Date: 2015-07-31

Brief Summary

Repeated drug consumption may progress to problematic use by triggering neuroplastic adaptations that attenuate sensitivity to natural rewards while increasing reactivity to craving and drug cues. Converging evidence suggests that glutamate modulation may work to correct these adaptations and rapidly restore motivation for delayed non-drug rewards relative to immediate drug use. Using an established laboratory model aimed at evaluating behavioral shifts in the salience of cocaine now vs. money later, the investigators will test the effect of CI-581a on cocaine self-administration as compared to the active control.

Conditions

Cocaine Dependence

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: TREATMENT
• Blinding Strategy: QUADRUPLE

Study Groups

CI-581a

Administration of CI-581a followed 2 weeks later by CI-581b

Group Type: EXPERIMENTAL

CI-581a

Intervention Type: DRUG

a 50 minute infusion 24 hours prior to cocaine self-administration session

CI-581b

Intervention Type: DRUG

a 50 minute infusion 24 hours prior to cocaine self-administration session

CI-581b

Administration of CI-581b followed 2 weeks later by CI-581a

Group Type: ACTIVE_COMPARATOR

CI-581a

Intervention Type: DRUG

a 50 minute infusion 24 hours prior to cocaine self-administration session

CI-581b

Intervention Type: DRUG

a 50 minute infusion 24 hours prior to cocaine self-administration session

Interventions

CI-581a

a 50 minute infusion 24 hours prior to cocaine self-administration session

Intervention Type: DRUG

CI-581b

a 50 minute infusion 24 hours prior to cocaine self-administration session

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

1. Active cocaine dependence with at least 8 days of use or at least 4 binges of large amounts (>$200/occasion) over the past 30 days, and displaying at least one positive utox during screening

2. Physically healthy

3. No adverse reactions to study medications

4. 21-55 years of age

5. Capacity to consent and comply with study procedures, including sufficient proficiency in English

6. Not seeking treatment

Exclusion Criteria

1. Meets DSM IV criteria for current major depression, bipolar disorder, schizophrenia, any psychotic illness, including substance induced psychosis, and current substance-induced mood disorder with HAMD score > 12.

2. Physiological dependence on another substance, such as alcohol, opioids, or benzodiazepines, excluding caffeine, nicotine, and cannabis

3. Delirium, Dementia, Amnesia, Cognitive Disorders, or Dissociative disorders

4. Current suicide risk or a history of suicide attempt within the past year

5. Pregnant or interested in becoming pregnant during the study period

6. Any of the following cardiac conditions: clinically significant left ventricular hypertrophy, angina, clinically significant arrhythmia, or mitral valve prolapse

7. Unstable physical disorders which might make participation hazardous such as end-stage AIDS, hypertension (>140/90), WBC < 3.5, active hepatitis or other liver disease with elevated transaminase levels (< 2-3 X upper limit of normal will be considered acceptable if PT/PTT is normal), renal failure (creat > 2, BUN >40), or untreated diabetes

8. Previous history of ketamine or midazolam misuse or abuse, and a history of an adverse reaction/experience with prior exposure to cocaine, ketamine or midazolam

9. Recent history of significant violence (past 2 years)

10. Abnormal pseudocholinesterase level

11. First degree relative with a psychotic disorder (bipolar disorder, schizophrenia, schizoaffective disorder, or psychosis NOS)

12. BMI > 35, or a history of documented obstructive sleep apnea

13. On psychotropic or other medications whose effect could be disrupted by participation in the study

• Minimum Eligible Age: 21 Years
• Maximum Eligible Age: 55 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

New York State Psychiatric Institute

OTHER

Sponsor Role: lead

Responsible Party

Elias Dakwar

research psychiatrist

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Elias Dakwar, MD

Role: PRINCIPAL_INVESTIGATOR

Columbia College of Physicians and Surgeons

Other Identifiers

6716

Identifier Type: -

Identifier Source: org_study_id