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The Role of Selegiline in the Treatment of Negative Symptoms Associated with Schizophrenia
Objective: To evaluate the role of selegiline in the treatment of negative symptoms associated with schizophrenia. Data Sources: MEDLINE (1966–January 2007) and PsychINFO (1967–January 2007) were searched, using the terms schizophrenia, negative symptoms, and selegiline. A bibliographic search was c...
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Published in: | The Annals of pharmacotherapy 2007-05, Vol.41 (5), p.851-856 |
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Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Objective:
To evaluate the role of selegiline in the treatment of negative symptoms associated with schizophrenia.
Data Sources:
MEDLINE (1966–January 2007) and PsychINFO (1967–January 2007) were searched, using the terms schizophrenia, negative symptoms, and selegiline. A bibliographic search was conducted, as well.
Study Selection and Data Extraction:
All English-language articles identified from the search were evaluated. All primary literature was included in the review.
Data Synthesis:
Based on its dopamine-enhancing property, selegiline has been studied as augmentation to antipsychotic therapy for the treatment of negative symptoms associated with schizophrenia. The efficacy of low-dose oral selegiline for the treatment of negative symptoms has been evaluated in 1 case report, 2 open-label trials, and 2 controlled trials. The case report and both open-label trials report improvement of negative symptoms associated with low-dose oral selegiline. In 1 of the controlled trials, selegiline showed no difference in effect from that of placebo. These data are limited by small sample sizes. The largest controlled trial demonstrated a statistically significant difference between selegiline and placebo; however, the clinical significance is questionable, given that patients treated with selegiline were still experiencing marked negative symptoms at study completion. No comparative studies evaluating low-dose oral selegiline versus other augmentative treatment options for negative symptoms associated with schizophrenia exist at this time.
Conclusions:
Given the limitations of current literature, low-dose oral selegiline cannot be recommended for treatment of negative symptoms associated with schizophrenia. Additional controlled trials are needed to better delineate whether there is a role for selegiline in decreasing the burden of negative symptoms associated with schizophrenia. |
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ISSN: | 1060-0280 1542-6270 |
DOI: | 10.1345/aph.1H556 |