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

Healthy Patient Studies

If you are 50 or older and do not have a history of neck pain, you may qualify for this study of balance and its association with head and neck position.

The research site is in Lexington, Ky.

More information

Please see http://www.centerwatch.com/clinical-trials/listings/studylist.aspx?CatID=361.

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Hypertension (High Blood Pressure)

If you are 18 or older, you may qualify for this study of an investigational drug for high blood pressure.

The research site is in Mount Pleasant, S.C.

More information

Please see http://www.centerwatch.com/clinical-trials/listings/studylist.aspx?CatID=85.

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Rheumatoid Arthritis

If you are 18 to 80, have had a confirmed diagnosis of RA for at least six months, and are currently taking an FDA-approved biologic disease-modifying anti-rheumatic drug (DMARD) that is not fully controlling your symptoms, you may qualify for this study.

The research site is in San Antonio, Texas.

More information

Please see http://www.centerwatch.com/clinical-trials/listings/studylist.aspx?CatID=132.

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