(HealthDay News) -- Here are the latest clinical trials, courtesy of ClinicalConnection.com:

Parkinson's Disease

If you or a loved one has Parkinson's disease, you may qualify for this study of an investigational add-on drug.

The research site is in Las Vegas, Nev.

More information

Please see http://www.clinicalconnection.com/clinical_trials/condition/park...ons_disease.aspx.

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Osteoarthritis of the Knee

This study will evaluate an investigational drug. Participants must be aged 40 to 75 and have a history of osteoarthritis of knee to qualify.

The research site is in New York City.

More information

Please see http://www.clinicalconnection.com/clinical_trials/condition/...eoarthritis.aspx.

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High Blood Pressure

This study will evaluate a number of FDA-approved medications to treat high blood pressure (hypertension).

The research site is in Raleigh, N.C.

More information

Please see http://www.clinicalconnection.com/clinical_trials/conditio...ypertension.aspx.

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