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

Vaccines

This study will exam ine the safety and effectiveness of two investigational combination vaccines, when used in immunization schedules with other vaccines and given to healthy infants. Your child will have the benefit of being immunized with vaccines against Hib, diphtheria, tetanus, pertussis, poliovirus, pneumococcus, measles, mumps, rubella, hepatitis B and varicella. The study will be explained to you in more detail and you will find out if your baby is eligible to be enrolled. Study families will receive reimbursement for time and travel. The research site is located in Pittsburgh, Penn.

More Information

Please see http://www.centerwatch.com/patient/studies/cat372.html.

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Bowel Dysfunction

People with diarrhea caused by C. difficile infection are being recruited for a research study conducted by Long Island Jewish Medical Center. If you are at least 18, have diarrhea caused by C. difficile, do not currently have diarrhea of another cause, have diarrhea that started more than 30 days ago, and are not allergic to vancomycin or metronidazole, you may be eligible to participate. The research site is located in Manhasset, NY.

More Information

Please see http://www.centerwatch.com/patient/studies/cat701.html.

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Prostate Cancer

GVAX immunotherapy for prostate cancer is an investigational product in Phase 3 clinical development for people with advanced-stage, hormone-refractory prostate cancer with pain. Volunteers who have a confirmed diagnosis or clinical history consistent with adenocarcinoma of the prostate, have had only one prior treatment with systemic chemotherapy, and have had no prior treatment with gene therapy or immunotherapy may be eligible to participate. The research sites are located in West Palm Beach, Fla.

More Information

Please see http://www.centerwatch.com/patient/studies/cat36.html.

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