(HealthDay News) -- Here are the latest clinical trials, courtesy of Thomson CenterWatch:
Rheumatoid Arthritis
If you are 18 or older and have been diagnosed with rheumatoid arthritis for at least a year, you may be eligible to participate in this study.
The research site is in Clearwater, Fla.
More information
Please see http://www.centerwatch.com/patient/studies/cat132.html 
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Insomnia
If you are 18 to 64 years old and have trouble sleeping, you may qualify for this study of an investigational medication.
The research site is in Houston, Texas
More information
Please see http://www.centerwatch.com/patient/studies/cat189.html .
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Obesity
If you are 18 to 70 years old and have type 2 diabetes, high cholesterol, and/or high blood pressure, you may be eligible to participate in this study.
The research site is in Phoenix, Ariz.
More information
Please see http://www.centerwatch.com/patient/studies/cat107.html .
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