Related Experiment Video
Updated: Jun 24, 2026

Endobronchial Ultrasound-guided Intratumoral Injection of Cisplatin for the Treatment of Isolated Mediastinal Recurrence of Lung Cancer
Published on: February 12, 2017
Comparative chemotherapeutic efficacy in non-small cell lung cancer patients with postoperative recurrence and stage
Ikuo Sekine1, Hiroshi Nokihara, Noboru Yamamoto
1Division of Internal Medicine and Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan. isekine@ncc.go.jp
Background:
Whether chemotherapy would be equally effective in non-small cell lung cancer patients with stage IV disease (group A) and postoperative recurrence (group B) remains unclear.
Patients And Methods:
In a total of 642 non-small cell lung cancer patients with distant metastases treated by chemotherapy, the baseline patient characteristics, responses to chemotherapy and survival were compared between group A (n = 480) and group B (n = 162).
Results:
Adenocarcinoma was the predominant histologic type, accounting for 78% of the patients in group A and 90% of the patients in group B (p < 0.001). Bone and brain metastases were more common in group A (p = 0.034 and p = 0.014, respectively), although pulmonary metastases were more common in group B (p < 0.001). The chemotherapy regimens used for the treatment did not differ between groups A and B. The response rates in group A and group B were 32 and 33%, respectively (p = 0.65). In contrast, the median progression-free survival (5.5 versus 4.2 months, p = 0.0065) and overall survival (21.3 versus 13.3 months, p < 0.001) were better in group B than in group A.
Conclusion:
Survival was superior in patients with postoperative recurrence than in those with stage IV disease, although the two groups showed comparable responses to chemotherapy.