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New Drug Therapies May Effectively Treat Subgroup of Schizophrenia Patients

by Reshma Anand on  December 9, 2015 at 2:06 PM Mental Health News   - G J E 4
As the disturbances in the brain's glutamate pathway contribute to symptoms of schizophrenia, the glutamate pathway has become the target of a number of new drug therapies, revealed a new study. The findings were published in the journal Biological Psychiatry and it suggests that at least one of these drugs may be an effective treatment for individuals in the early course of the illness.
New Drug Therapies May Effectively Treat Subgroup of Schizophrenia Patients
New Drug Therapies May Effectively Treat Subgroup of Schizophrenia Patients
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Re-analyzed data from inconclusive clinical trials of a compound called pomaglumetad methionil suggest that a more targeted population of subjects--patients who are early-in-disease or patients who have not already been exposed to other antipsychotic medications--may have produced a statistically significant response.

‘Glutamate pathway-targeted drugs can be an effective treatment for schizophrenia patients early in their course of illness or who have not had prior treatment with antipsychotic medication. ’
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The authors of the current study hypothesize that these previous trials may have inadvertently selected subjects who would be nonresponsive to the medication and conclude that future efficacy trials may require the identification of subgroups of patient populations.

"The complex pathophysiology of schizophrenia and resultant patient heterogeneity present significant challenges to developing new and effective therapies for this disorder. Receptor selective compounds such as pomaglumetad may target specific sites that mediate disease in some but not all patients. Our tentative, though testable, findings may provide a direction for the development of personalized treatments for a patient subgroup whose illness is associated with a dysregulation of brain glutamate function," said corresponding author Dr. Bruce Kinon of Lundbeck LLC.

"As we develop drugs that work by targeting the primary brain pathology in schizophrenia, it is likely that the differences between patients are going to play a bigger role in determining optimal treatment," commented Dr. John Krystal, Editor of Biological Psychiatry. "Kinon and his colleagues present interesting data suggesting that although pomaglumetad methionil does not work for all patients, it may be helpful for patients early in their course of illness or who have not had extensive prior treatment with a second generation antipsychotic medication or other serotonin-2 receptor antagonist."



Source: Eurekalert
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