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

Bipolar Depression

This study will evaluate an FDA-approved drug among people with bipolar depression. The eight-week study involves a screening visit, three MRI visits that include cognitive testing, and four additional visits with a study physician.

The research site is in Brighton, Mass.

More information

Please see http://www.clinicalconnection.com/clinical_trials/con...ion/bipolar.aspx.

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Osteoarthritis of the Knee

To qualify for this study, you must be aged 18 to 75 and diagnosed with osteoarthritis of the knee.

The research site is in Ormond Beach, Fla.

More information

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

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Healthy Smokers

This study is looking for healthy volunteers who smoke cigarettes. If you qualify, you can receive up to $795 and a picture of your brain.

The research site is in Los Angeles, Calif.

More information

Please see http://www.clinicalconnection.com/clinical_trials/con...ion/smoking.aspx.

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