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

Low Testosterone

This clinical study of patients with symptoms of low testosterone will include men with diminished sexual desire, erectile quality and frequency, changes in mood, fatigue, irritability, or sleep disturbances.

Males seo tips 40 or older who meet certain screening lab criteria, and who do not have a history of breast cancer, prostate cancer, or sleep apnea may qualify.

The research site is New Port Richey, Fla.

More Information

Please see http://www.centerwatch.com/patient/studies/cat646.html.

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Atrial Fibrillation

This is a research study involving use of an experimental drug that may make it easier to monitor your heart than your current medication does.

Candidates who qualify and decide to participate will be asked to come to the study doctor’s office up to 15 times for at least one year and up to three years. All study medication, study visits, and study related exams and tests will be provided to participants.

The research site is in Gainesville, Fla.

More Information

Please see http://www.centerwatch.com/patient/studies/cat243.html.

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Schizophrenia and Schizoaffective Disorders

This clinical trial assesses the efficacy and safety of an atypical antipsychotic study medication in adolescents with schizophrenia.

Volunteers should be between ages 13 and 17 and have a diagnosis of schizophrenia. They should not have secondary diagnoses of bipolar disorders or a history of serious suicide attempt, or current suicidal/homicidal ideas.

Both parent and child must consent before entering any study procedure.

The research sites are located throughout the United States.

More Information

Please see http://www.centerwatch.com/patient/studies/cat135.html.

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