Once you have stopped taking therapy with CT-2103 and gemcitabine, you will be asked to return to see your physician in about 6 weeks to evaluate how you are doing and to find out if there has been any additional change in the cancer. You will have a complete medical history and physical exam. You will have a CT scan of the chest and abdomen, a bone scan, and a chest x-ray performed to document the size and location of the tumor(s).