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Discover 15,366 clinical trials near Houston, Texas. Find research studies in your area.
Showing 11581-11600 of 15,366 trials
NCT02662556
This is a multicenter, open-label study in patients 40 years and older who are undergoing a surgical procedure. Patients may receive one dose of ST 30 mcg as needed for pain management, but no more frequently than every 60 minutes, for up to 12 hours.
NCT00153816
Extensive experimental and observational data suggest that intake of calcium and of vitamin D exert protective effects on colorectal neoplasia. Building on their previous work, the investigators will investigate the chemopreventive effect of vitamin D in the large bowel, to study whether calcium with vitamin D is more effective than calcium alone, and to confirm their positive finding regarding calcium. The goal of this study is the development of chemopreventive combinations that will reduce risk of colorectal neoplasia sufficiently to permit the lengthening of surveillance intervals in most patients and to clarify important issues regarding the mechanisms of colorectal carcinogenesis and chemoprevention.