(HealthDay News) -- Here are the latest clinical trials, courtesy of Thomson CenterWatch:

Shingles

If you are 18 or older, have had shingles in the past five years and have had PHN pain for at least the past six months, you may be eligible to participate in this study.

The research site is in San Diego.

More information

Please see http://www.centerwatch.com/patient/studies/cat225.html.

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Chronic Leg Pain

Both males and females at least 40 years of age with a history of knee pain related to osteoarthritis but otherwise in general good health may be eligible to participate in this study.

The research site is in Danbury, Conn.

More information

Please see http://www.centerwatch.com/patient/studies/cat304.html.

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Cerebral Palsy

If your child is between 4 and 10 years old, is a healthy, typically developing child, or is a physically healthy child with cerebral palsy, he or she may be eligible to participate in this study.

The research site is in Lexington, Ky.

More information

Please see http://www.centerwatch.com/patient/studies/cat480.html.

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