Twenty-eight patients with advanced adenocarcinoma of the lung were treated with the combination chemotherapy "EACAM" consisting of cyclophosphamide (333 mg/m2 X 1), adriamycin (27 mg/m2 X 1), cisplatin (25 mg X 5), nimustine (33 mg/m2 X 1), and methotrexate (27 mg/m2 X 3). This regimen was repeated once every 4 or 5 weeks. One complete response (CR) and 10 partial responses (PR) were obtained in 27 evaluable patients and the response rate was 40.7%. The 50% survival time for all of the evaluable cases was 64 weeks. The 50% survival time for the responding patients (93 weeks) was significantly superior (p = 0.002) to that of the nonresponding patients (52 weeks). Alopecia, myelosuppression and mild G I trouble were observed, but these presented no obstacle to the continuation of the therapy. The combination chemotherapy "EACAM" is therefore considered to be a very effective and tolerable treatment for advanced adenocarcinoma of the lung, and can help in achieving our aim of prolonging the survival time of such patients.