(HealthDay News) -- Here are the latest clinical trials, courtesy of Thomson CenterWatch:
Gout
You may qualify for this study if you are 18 to 49 years old and have an uncomplicated gastric or duodenal ulcer. You may not participate if you are nursing, pregnant or intend to become pregnant.
The research site is in Sherwood, Ark.
More information
Please see http://www.centerwatch.com/patient/studies/cat443.html 
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Melanoma
If you have stage 3 or stage 4 melanoma, you are invited to participate in this clinical study. Participants will receive either the study drug or standard chemotherapy.
The research site is in St. Louis, Mo.
More information
Please see http://www.centerwatch.com/patient/studies/cat791.html .
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Irritable Bowel Syndrome
You may qualify for this study if you are between 18 and 70 years old and have IBS accompanied by diarrhea. Participants will receive study related exams and medication at no cost.
The research site is in San Antonio, Texas.
More information
Please see http://www.centerwatch.com/patient/studies/cat90.html .
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