[ Back to EurekAlert! ] Public release date: 12-Dec-2008
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Contact: Leigh Fazzina

Parkinson's disease can affect more than just the body

Online survey finds many patients and caregivers unprepared for the mental and behavioral changes associated with the disease

King of Prussia, PA - December 10, 2008 Ė Parkinsonís disease affects 6.3 million people worldwide. While the disease is recognized for its profound effects on movement, up to 40 percent of Parkinsonís disease patients also develop changes in thought, behavior and judgment.

As Parkinsonís disease progresses, patients may experience what is called ĎParkinsonís Psychosis,í in which they experience changes in thought, behavior and judgment. In more advanced stages these symptoms include hallucinations where patients see, hear or feel things that arenít really there, and paranoid delusions where they become distrustful of even their closest friends and family members. The emergence of these symptoms represents a major turning point in the course of the patientís disease.

ďWhile the physical manifestations of Parkinsonís disease are difficult to deal with, the changes in thought, behavior and judgment strain the bonds between patients and their caregivers and families,Ē said Dr. Bernard Ravina, Director of the Movement and Inherited Neurological Disorders Unit at the University of Rochester in New York.

According to an on-line survey recently conducted by MediciGlobal, a global patient recruitment and retention specialty firm, over one-third of Parkinsonís caregivers are unaware that changes in thought, behavior, and judgment can accompany the disease. ďAs a registered nurse, I was prepared for the physical problems with my husbandís Parkinsonís disease but, despite my job as a RN, I was totally unprepared for the psychiatric issues,Ē said Carol McLain, a caregiver who took the survey.

According to Dr. Ravina, ďItís the non-physical symptoms of the disease that are often most devastating for both the patient and caregiver. As the patientís mental health deteriorates, the family often has to make the painful and expensive decision of moving the patient into a nursing home.Ē

There are currently no FDA-approved treatments for these particular non-physical symptoms of Parkinsonís disease. Nevertheless, doctors often resort to the use of potent antipsychotic drugs to treat these symptoms even though these drugs sometimes have serious side effects, particularly in the elderly, including worsening of motor skills, excessive sleepiness, increased infections, stroke, and sudden death in some patients. As a result, there is a large unmet medical need for new and improved treatment options.


A clinical trial is currently recruiting people with changes in thought, behavior and judgment related to Parkinsonís disease to test whether their condition can be treated safely and effectively with a new investigational drug. The clinical trial, which is being conducted in the United States, UK, France, Bulgaria, Russia, and Ukraine, focuses on men and women who are at least 40 years of age, have an established diagnosis of Parkinsonís disease, and are currently experiencing changes in thought, behavior or judgment.

Those in the U.S. caring for someone who may be experiencing changes in thought, behavior and judgment associated with Parkinsonís disease are encouraged to call the toll-free study hotline at 1-866-565-0261 or visit the web site at www.ParkinsonsMindStudy.com to learn more about this clinical trial.

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