Prognosis of Non-Small Cell Lung Cancer with Synchronous Brain Metastases Treated with Gamma Knife Radiosurgery

The clinical outcome and prognostic factors of patients with synchronous brain metastases from non-small cell lung cancer (NSCLC) who were treated with gamma knife radiosurgery (GKS) were analyzed. A total of 35 patients with NSCLC underwent GKS as an initial treatment for metastatic brain lesions of synchronous onset. The period of survival and various prognostic factors such as age, gender, performance status, multiplicity of the brain lesions, intracranial tumor volume, and extent of the primary tumor were analyzed. The overall median survival time for this series was 12 months (range 0.75 to 43 months) from the diagnosis. Of the 21 patients who were no longer alive at the conclusion of this study, only 7 (33.3%) died of neurological causes. Multivariate analysis of these data revealed that N stage, whole-brain radiotherapy (WBRT), and chemotherapy were significant predictors for survival (p<0.05). Survival of patients with NSCLC and synchronous brain metastases is mainly dependent upon the progression of the systemic disease, provided that the cerebral lesions are treated adequately with local treatment modalities including radiosurgery. Application of radiosurgery as an initial treatment option and aggressive local and systemic modalities to control extracranial disease may improve survival.

A Phase II Study of Genexol(R) (paclitaxel) in Metastatic Breast Cancer / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: Paclitaxel is a very effective agent in the treatment of breast cancer. Samyang Corporation has developed its own process to produce paclitaxel in a large volume using plant cell culture technology. To evaluate the efficacy and safety of Genexol(R) in patients with metastatic breast cancer who have failed to respond to standard therapy, we performed a prospective, multi- center phase II clinical trial. MATERIALS AND METHODS: Patients with metastatic breast cancer were included in this study. Enrollees were required to have histologically confirmed breast cancer with bidimensionally measurable metastatic disease. Genexol(R) was administered at 175 mg/m2 as a 3-hour intravenous infusion every 3 weeks. All patients were premedicated with hydrocortisone, pheniramine maleate, and H2 blocker 30 minutes prior to paclitaxel. We planned to administer at least 4 courses of paclitaxel unless there was disease progression or unacceptable toxicity and to continue treatment up to a total of 6 courses in cases of objective response following 4 courses. RESULTS: The median duration of follow-up was 8.9 (2.07~13.7) months. Forty-five patients were registered and 43 were eligible. The performance status of patients was ECOG 0~1 in 39 patients (90.7%) and 2 in 4 (9.3%). The location of metastases at the start of the study were the lung (15 patients), liver (8 patients), lymph nodes (22 patients), and other (7 patients). Among the 40 evaluable patients, 15 patients obtained partial responses (PRs) (37.5%, 95% CI: 22.5~52.5%). The median duration of response was 11.67 (4.1~11.7) months and the median time to progression was 7.73 (2.8~11.7) months. The median survival time was not reached at 13.7 months, and the overall survival rate at 13.7 months was 70.1%. The hematologic toxicity was primarily neutropenia with grade 3 or 4 in 10 patients (23.3%). The grade 3 or 4 non-hematologic toxicities included alopecia (17, 39.5%), myalgia (2, 4.7%), neuropathy (2, 4.7%), and pruritus (1, 2.3%). Mild hypersensitivity reaction was observed in 2 patients, although it did not cause withdrawal of the test drug. CONCLUSION: The results suggest that the Genexol injection is an effective anticancer formulation for the treatment of metastatic breast cancer and toxicity is acceptable.