Memantine Treatment Study of Pathological Gambling
The goal of the proposed study is to evaluate the efficacy and safety of the drug memantine in individuals with pathological gambling (PG). Thirty subjects with DSM-IV PG will receive 10 weeks of open-label treatment with memantine. The hypothesis to be tested is that memantine will be effective and well tolerated in patients with PG. We hypothesize that memantine will reduce the severity of gambling symptoms and improve patients' overall functioning. This study will provide needed data on the treatment of a disabling disorder that currently lacks a clearly effective treatment.
|Study Design:||Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||A Phase II Open-Label Multi-Center Trial of Memantine (Namenda(TM)) Treatment of Pathological Gambling|
- Yale Brown Obsessive Compulsive Scale Modified for Pathological Gambling (PG-YBOCS) [ Time Frame: Baseline to study end point (10 weeks) ] [ Designated as safety issue: No ]The PGYBOCS is a reliable & valid, 10-item, clinician administered scale that rates gambling symptoms within the last 7 days. The first 5 questions assess urges and thoughts associated with pathological gambling, and the last 5 questions assess the behavioral component of the disorder. Scores of 0 through 4 are assigned each item according to the severity of the response (0 = least severe response or none, 4 = most severe response or extreme)with a score ranging from 0-40. Each set of questions (1-5 and 6-10) can be totaled separately for the component score (urges/thoughts and behavioral) as well as together for a total score. A score of 0 indicates no problems while increasing scores indicate increasing severity of problems with gambling. PG-YBOCS is used to measure changes across time. A decreasing score indicates a possible positive response to the intervention. Total score at baseline was compared with the study end to determine if the intervention was efficacious.
|Study Start Date:||December 2007|
|Study Completion Date:||December 2011|
|Primary Completion Date:||December 2011 (Final data collection date for primary outcome measure)|
10 to 30 mg/day memantine. The study consisted of 10 weeks of open-label memantine. All eligible study subjects were started at 10 mg/day for 2 weeks. The dose was increased to 20 mg/day after 2 weeks and then to 30 mg/day after 4 weeks unless remission of PG symptoms was attained at a lower dose.
Drug: Memantine Hydrochloride
10 mg/day for two weeks, dose increase to 20 mg at week 3, 30 mg at week 4 unless clinical improvement is achieved with a lower dose. Total treatment is 10 weeks.
Other Name: Namenda
|United States, Connecticut|
|Yale University School of Medicine|
|New Haven, Connecticut, United States, 06519|
|United States, Minnesota|
|University of Minnesota Medical Center, Fairview|
|Minneapolis, Minnesota, United States, 55454|
|Principal Investigator:||Marc N. Potenza, M.D, Ph.D.||Yale University|
|Principal Investigator:||Jon E Grant, MD, JD, MPH||University of Minnesota - Clinical and Translational Science Institute|