Hypo-Hyperfractionated Chest Radiation for Non Small Cell Lung Cancer With Taxotere/Xeloda Combination Chemotherapy

The study is designed for patients with non small cell lung cancer whose cancer is too advanced and therefore cannot be operated with the goal of completely removing the cancer. At this stage of the disease, most patients cannot be cured from the disease, however, treatment can help to live longer and better by keeping the cancer under control. For that purpose, patients traditionally receive radiation therapy or chemotherapy or both treatments in succession. Recently, the administration of both treatment methods given concurrently showed somewhat better results when compared to successive administration. In some studies the drug Taxotere together with radiation performed well in keeping the cancer better under control. Combination of the drug Taxotere together with a compound called 5-FU either as continuous infusion or in its oral form of a pill called "Xeloda" enhanced its anti cancer activity substantially. One goal of this study is to investigate how much of the combination can be given in conjunction with chest radiation. Using X-rays, the study will also evaluate how much shrinkage of the cancer is caused by this treatment directly at the tumor site and other areas where the cancer may have also spread. In this study the radiation will be given on only one day per week in two sessions, rather than divided over five days per week (Monday through Friday) as it is more commonly used. However, both schedules have been found to be equally effective. The treatment program will use increasing doses of the 5-FU medication, either as infusion or as pill to find the highest dose that is tolerated. Once the highest tolerated dose is determined, subsequent patients who will be enrolled will continue to be treated at that dose level. The dose of the drug Taxotere will remain the same throughout. Hypothesis: Our previous research suggests that the combination of Taxotere and 5-FU given together with weekly chest radiation will provide a more convenient form of treatment than the conventional approach and also be at least similar in its efficacy.