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Find 733 clinical trials for lung cancer near Houston, Texas. Connect with research centers in your area.
Showing 581-600 of 733 trials
NCT00559611
The goal of this clinical research study is to compare 2 different methods for checking lymph glands (in the middle of the chest) for cancer cells. Objectives: The aim of this prospective study is to determine the staging accuracy of endobronchial ultrasound guided fine needle aspiration biopsy of mediastinal lymph nodes compared to the 'gold standard', mediastinoscopy, in patients with clinical Stage IIIA non-small cell lung cancer. Primary Objective: To determine the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of EBUS-FNA and mediastinoscopy in identifying mediastinal nodal metastases. Secondary Objectives: To estimate quantitative and qualitative differences regarding sampling of mediastinal nodes (number and location of nodes biopsied, number and location of positive nodes, extracapsular extension, ability to biopsy contralateral nodes). To determine the frequency of change of planned therapeutic management resulting from outcome of EBUS-FNA and mediastinoscopy. To determine procedure related complications. To perform analysis of cost between EBUS-FNA and mediastinoscopy.
NCT01710293
Many missed and delayed cancer diagnoses result from breakdowns in communication and coordination of abnormal findings suspicious for cancer, which often first emerge in the primary care setting. Delays in the follow-up of abnormal test results persist despite the reliable delivery of test results through the electronic health record. This intervention is the final study in a three-phase project that will develop and test an innovative automated surveillance intervention to improve timely diagnosis and follow-up of five common cancers in primary care practice. The investigators hypothesize that the median time in days from diagnostic clue to follow-up action (e.g. time to colonoscopy examination after am abnormal colon-related test) will be significantly less in the intervention arm than in usual care. The investigators also hypothesize that the proportion of patients receiving appropriate and timely follow-up care will be significantly higher in the intervention arm than in usual care.