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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00377299
Other study ID # 052006-27
Secondary ID
Status Completed
Phase N/A
First received September 14, 2006
Last updated July 5, 2013
Start date October 2006
Est. completion date May 2009

Study information

Verified date July 2013
Source University of Texas Southwestern Medical Center
Contact n/a
Is FDA regulated No
Health authority United States: Institutional Review Board
Study type Interventional

Clinical Trial Summary

Bipolar disorder (BD) is a common and severe psychiatric illness. Drug and alcohol abuse are very common in people with BD and other mood disorders and are associated with increased rates of hospitalization, violence towards self and others, medication non-adherence and cognitive impairment. However, few studies have investigated the treatment of dual-diagnosis patients as substance use is frequently an exclusion criterion in clinical trials of patients with BD. To address this need, we have developed a research program that explores the pharmacotherapy of people with BD and substance related-disorders. A potentially very interesting treatment for BD is citicoline. Some data suggest that this supplement may stabilize mood, decrease drug use and craving, and improve memory. We found promising results with citicoline in patients with BD and cocaine dependence. In recent years the use of amphetamine and methamphetamine has become an important public health concern. However, virtually no research has been conducted on the treatment of amphetamine abuse. We propose a double-blind placebo controlled prospective trial of citicoline in a group of 60 depressed outpatients with bipolar disorder, depressed phase or major depressive disorder and amphetamine abuse/dependence, to explore the safety and tolerability of citicoline, and its efficacy for mood symptoms, stimulant use and craving and its impact on cognition. Our goal is to determine which symptoms (e.g. mood, cognition, substance use) citicoline appears to be most effective and estimate effect sizes for future work.


Description:

Sixty outpatients meeting the inclusion and exclusion criteria will be enrolled after completing an Institutional Review Board (IRB)-approved informed consent process. Baseline evaluation will include a medical and psychiatric history, structured clinical interview for Diagnostic and Statistical Manual (DSM-IV) (SCID), mood assessment with the Inventory of Depressive Symptomatology-Self Report (IDS-C), Young Mania Rating Scale (YMRS), and cognitive assessment with the Hopkins Auditory Verbal Learning Test (HVLT) (similar to the Rey Auditory Verbal Learning Test (RAVLT) but more alternative equivalent versions are available), Stroop and computer assessments including Sternberg Memory Task and the Running Memory Continuous Performance Test. Alternate but equivalent versions of all cognitive tests, except the Stroop, will be used to minimize practice effects with repeated administration. Days and amounts of amphetamine and other substance use will be assessed at each visit with urine drug screens, and through self-report using the timeline follow-back method. Amphetamine, and other drug, craving will be assessed with a visual analogue scales. Citicoline or placebo add-on therapy will be given beginning at one tablet (500mg)/day with an increase to two tablets 1000 mg/day at week 2, three tables 1500 mg/day at week 4 and four tablets 2000 mg/day at week 6.


Recruitment information / eligibility

Status Completed
Enrollment 60
Est. completion date May 2009
Est. primary completion date May 2009
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 18 Years to 70 Years
Eligibility Inclusion Criteria:

- Men and women ages 18-70 years

- Meeting criteria for a current major depressive episode (bipolar I,II, not otherwise specified (NOS)

, depressed phase) or major depressive disorder on the Structured Clinical Interview for the Diagnostic and Statistical Manual for Mental Disorders (SCID) with a duration of at least 4 weeks

- Meeting criteria for amphetamine abuse or dependence with use within 14 days prior to baseline

- No psychotropic medication changes within 14 days prior to study entry

Exclusion Criteria:

- Pregnant or nursing women

- Current citicoline therapy

- Active suicidal or homicidal ideation with plan and intent

- Dementia, mental retardation or other severe cognitive impairment that might interfere with the informed consent process

- Currently incarcerated at a prison or jail

- Severe or life threatening medical condition (e.g. terminal cancer, congestive heart failure)

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment


Intervention

Drug:
Citicoline
Citicoline is an over the counter supplement that may have neuroprotective properties and may have antidepressant effects. Citicoline or placebo (identical in appearance) add-on therapy was given beginning at one tablet (500mg/day) with an increase to two tablets (1000 mg/day) at week 2, three tablets (1500 mg/day) at week 4 and four tablets (2000 mg/day) at week 6. Doses were decreased, if needed, due to side effects.
Placebo
Placebo matching active medication in all other physical aspects

Locations

Country Name City State
United States Psychoneuroendocrine Research Program Dallas Texas

Sponsors (2)

Lead Sponsor Collaborator
University of Texas Southwestern Medical Center Stanley Medical Research Institute

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Depression Symptoms Inventory of Depressive Symptomatology-Clinician Rated (IDS-C), (a clinician-administered depression scale) is used to assess the severity of depressive symptoms.Scores can range from 0 to 84. The higher the score, the worse the depressive symptoms(worse outcome). 12 weeks No
Secondary Amphetamine Craving Visual Analog Scale (VAS) assessing Methamphetamine craving with a 1-100 scale.Higher values on the VAS scale indicate a higher Methamphetamine craving(worse outcome). 12 Weeks No
Secondary Amphetamine Use Participant reported days per 7-day week of methamphetamine use. 12 weeks No
Secondary Hopkins Auditory Verbal Learning Test (HVLT) The Hopkins Auditory Verbal Learning Test (HVLT) is a measure of cognition (memory/recall). Raw scores are derived for Total Recall, Delayed Recall, Retention (% retained), and a Recognition Discrimination Index. Raw scores are calculated into T-scores. T-scores are standardized scores on each dimension for each type. A score of 50 represents the mean. A difference of 10 from the mean indicates a difference of one standard deviation. Thus, a score of 60 is one standard deviation above the mean, while a score of 30 is two standard deviations below the mean. 12 weeks No
Secondary Stroop Color Word Test The Stroop Color Word Test measures the individual's ability to separate the word and color naming stimuli thus the ability to sort information from the environment and selectively react to this information. The scoring is a measure of time to complete 100 items and the numbers of items that can be completed. THe scores are converted into T-scores which have a mean of 50 and a standard deviation of 10. 12 weeks No
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