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Find 336 clinical trials for ulcerative colitis near Houston, Texas. Connect with research centers in your area.
Showing 261-280 of 336 trials
NCT01096303
The main hypothesis is that persons that smoke or smoked tobacco and marihuana have worsen lung function as compared with persons that only smoke or smoked tobacco.
NCT01572792
The purpose of this Phase III study is to evaluate the long-term safety and tolerability of two fixed-dose combinations of inhaled aclidinium bromide/formoterol fumarate, aclidinium bromide, formoterol fumarate and placebo in patients with moderate to severe Chronic Obstructive Pulmonary Disease (COPD). Long-term efficacy, pharmacoeconomic and health-related quality of life assessments will also be evaluated. This extension study will include a 28 week treatment period, followed by a four week follow up visit. All patients will remain in the same treatment group as for the lead-in study and continue on one of the four treatment arms or placebo.