- 1.Patients who are receiving concurrent radiotherapy, chemotherapy or other experimental therapy. 2.Patients who refuse port-A catheter implantation. 3.Patients with brain or leptomeningeal metastases. 4.Patients who have significant cardiac arrhythmia or acute myocardial infarction within 6 months before entry. 5.Patients who have major systemic diseases that the attending physicians considered inappropriate for systemic chemotherapy. 6.Life expectancy less than 2 months. 7.Pregnant or nursing women may not participate. Women or men with reproductive potential may not participate unless they have agreed to use an effective contraceptive method. 8.No other prior malignancy is allowed except for the following: adequately treated basal cell or squamous cell skin cancers, in situ cervical cancer, adequately treated stage I or II cancer from which the patient is currently in complete remission, or any cancer from which the patient has been disease-free for 5 years.