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Discover 17,885 clinical trials near Houston, Texas. Find research studies in your area.
Showing 8001-8020 of 17,885 trials
NCT00819832
Phase 1 - Optimization Phase: Primary Objective: The primary objective of Phase 1 of this study is to determine the time point at which maximal Circulating Tumor Cell Burden (CTCB) occurs following standard vertebroplasty and Kyphoplasty procedures relative to baseline CTCB. Phase 2 - Comparison Phase: Primary Objective: The primary objective of Phase 2 of this study is to determine the change in CTCB from baseline to post-treatment as measured using the CellSearch™ Assay and to compare the average change between treatment groups with and without the use of the Cavity SpineWand. Secondary Objectives: * To determine the change in self-reported pain level from baseline to post-treatment as measured using the visual analogue scale (VAS) for spine pain and to compare the average change in pain level between treatment groups. * To determine the change in pain status from baseline to post-treatment as measured using the Brief Pain Inventory (BPI) and to compare the average change in pain status between treatment groups. * To determine the change from baseline to post-treatment in the M.D. Anderson Cancer Center Symptom Inventory (MDASI) and to compare the average change between treatment groups. * To determine the change from baseline to post-treatment in time to walk a 50-foot distance and to compare the average change between treatment groups.
NCT00499421
The goal of this clinical research study is to evaluate a system for localizing (targeting for treatment) the prostate for external beam radiation therapy. The system will be used to locate the prostate before treatment and to measure movement of the prostate during treatment. The data collected with the system will be compared to CT images taken during the course of your radiation therapy treatment. Researchers will try to use this information to verify the performance of the system, which could lead to improved positioning and tracking of the prostate during treatment.