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Updated: Oct 13, 2026

Endobronchial Ultrasound-guided Intratumoral Injection of Cisplatin for the Treatment of Isolated Mediastinal Recurrence of Lung Cancer
Published on: February 12, 2017
Combination chemotherapy in the treatment of adenocarcinoma of unknown primary origin
Abstract:
A total of 21 patients with histologic diagnosis of metastatic adenocarcinoma and an occult primary tumor were treated with combination chemotherapy. The regimen consisted of cyclophosphamide, vincristine, methotrexate, and 5-fluorouracil (COMF). The overall response rate was 47.6%. Six patients (28.6%) achieved complete response (mean duration, 36.5 months) and four patients (19%) achieved partial response (mean duration, 7.7 months). Toxicity was manageable and occurred in 14 patients (67%). The COMF combination serves as a broad-spectrum chemotherapy regimen in adenocarcinoma of unknown primary origin.
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