Intensive Combined Modality Therapy for Limited-Stage Small-Cell Lung Cancer

Background: Conventional-dose chemotherapy for small-cell lung cancer has resulted in high response rates but rarely in a cure. The addition of thoracic radiotherapy (chemoradiotherapy) has improved survival for patients having limited disease, resulting in a median survival of 14–18 months. Previou...

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Published in:JNCI : Journal of the National Cancer Institute 1993-04, Vol.85 (7), p.559-566
Main Authors: Elias, Anthony D., Ayash, Lois, Frei, Emil, Skarin, Arthur T., Hunt, Myla, Wheeler, Cathy, Schwartz, Gary, Mazanet, Rosemary, Tepler, Isidore, Eder, J. Paul, McCauley, Mary, Herman, Terence, Schnipper, Lowell, Antman, Karen H.
Format: Article
Language:English
Subjects:
Actuarial Analysis
Adult
Biological and medical sciences
Carcinoma, Small Cell - pathology
Carcinoma, Small Cell - therapy
Chemotherapy
Combined Modality Therapy - adverse effects
Combined Modality Therapy - methods
Female
Hematologic Diseases - etiology
Humans
Lung cancer
Lung Neoplasms - pathology
Lung Neoplasms - therapy
Male
Medical research
Medical sciences
Middle Aged
Neoplasm Staging
Pneumology
Pulmonary Fibrosis - etiology
Survival Analysis
Treatment Outcome
Tumors of the respiratory system and mediastinum
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Summary:Background: Conventional-dose chemotherapy for small-cell lung cancer has resulted in high response rates but rarely in a cure. The addition of thoracic radiotherapy (chemoradiotherapy) has improved survival for patients having limited disease, resulting in a median survival of 14–18 months. Previous trials evaluating high-dose chemotherapy and autologous bone marrow transplantation have demonstrated enhanced complete response rates without documenting overall survival benefit. Purpose: The purpose of this phase II trial was to determine the disease-free and overall survival, toxic effects, and relapse patterns in patients with limited small-cell lung cancer who were in partial or complete response to first-line conventional-dose chemotherapy and then received intensive systemic combined modality therapy. Methods: Adults with stage III small-cell lung cancer who had achieved at least a partial response to conventional-dose induction chemotherapy were treated with high-dose cyclophosphamide, cisplatin, and carmustine combined with autologous bone marrow transplantation. Cumulative doses of the three drugs were 5625, 165, and 480 mg/m2, respectively. After recovery, patients received thoracic radiotherapy (50–60 Gy in 25–30 fractions over 5–6 weeks) and cranial radiotherapy (30 Gy in 15 fractions during 3 weeks). Results: Of 19 patients in the study, six had achieved complete response, eight had a greater than 90% reduction in tumor size, and five had a 50%-90% reduction in tumor size. After high-dose therapy, 15 of the 19 were in complete response. Overall, median time to treatment failure after high-dose therapy was 12 months. Overall survival was 73% (95% confidence interval [CI] = 42%-89%) at 1 year and 53% (95% CI = 22%–77%) at 2 years. Of the 14 patients in or near complete response before high-dose therapy, 10 remain disease free with no further chemotherapy a median of 15 (4·69+) months after therapy. Actuarial 2-year disease-free survival is 57% (95% CI = 20%–82%). One patient died of Candida sepsis. Morbidity was low, and most patients returned to full-time work. With the exception of herpes zoster, there were no complications more than 3 months after high-dose therapy. Conclusions: The majority of the patients in this study are experiencing prolonged and unmaintained disease-free survival. Our findings suggest that patients in or near complete response before high-dose therapy have the most favorable prognosis. Implications A randomized comparison
ISSN:0027-8874
1460-2105
DOI:10.1093/jnci/85.7.559