Randomized Trial of Early Versus Late Alternating Radiotherapy/ Chemotherapy in Limited-Disease Patients with Small Cell Lung Cancer

국한성병기 소세포폐암 환자에서 조기 혹은 지연 교대 방사선-항암제치료의 전향적 비교연구

  • Lee Chang Geol (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
  • Kim Joo Hang (Department of Medical Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
  • Kim Sung Kyu (Department of Pulmonology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
  • Kim Sei Kyu (Department of Pulmonology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
  • Kim Gwi Eon (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
  • Suh Chang Ok (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center)
  • 이창걸 (연세대학교 의과대학 방사선종양학교실, 연세암센터) ;
  • 김주항 (연세대학교 의과대학 종양학과, 연세암센터) ;
  • 김성규 (연세대학교 의과대학 호흡기내과, 연세암센터) ;
  • 김세규 (연세대학교 의과대학 호흡기내과, 연세암센터) ;
  • 김귀언 (연세대학교 의과대학 방사선종양학교실, 연세암센터) ;
  • 서창옥 (연세대학교 의과대학 방사선종양학교실, 연세암센터)
  • Published : 2002.06.01

Abstract

Purpose : A randomized prospective study was conducted to compare the efficacy of early or late alternating schedules of radiotherapy, and carboplatin and ifosfamide chemotherapy in patients with limited-disease small cell lung cancer. Materials and Methods: From August 1993 to August 1996, a total of 44 patients with newly diagnosed, limited-disease small cell lung cancer, PS $H0\~2$, wt $loss<10\%$ were enrolled in a randomized trial which compared early alternating radiotherapy (RT)/chemotherapy (CT) and late alternating RT/CT. The CT regimen included ifosfamide $1.5\;g/m^2$ IV, d1-5 and carboplatin AUC 5/d IV, d2 peformed at 4 week intervals for a total of 6 cycles. RT (54 Gy/30 fr) was started after the first cycle of CT (early arm, N=22) or after the third cycle of CT (late arm, N=22) with a split course of treatment. Results : The pretreatment characteristics between the two arms were well balanced. The response rates in the early $(86\%)$ and late $(85\%)$ arm were similar. The median survival durations and 2-year survival rates were 15 months and $22.7\%$ in the early arm, and 17 months and $14.9\%$ in the late arm (p=0.47 by the log-rank test). The two-year progression free survival rates were $19.1\%$ in the early arm and $19.6\%$ in the late arm (p=0.52 by the log-rank test). Acute grade 3 or 4 hematologic and nonhematologic toxicities were similar between the two arms. Eighteen patients $(82\%)$ completed 6 cycles of CT in the early arm and 17 $(77\%)$ in the late arm. Four patients received less than 45 Gy of RT in the early arm and two in the late arm. There was no significant difference in the failure patterns. The local failure rate was $43\%$ in the early arm and $45\%$ in the late arm. The first site of failure was the brain in $24\%$ of the early arm patients compared to $35\%$ in the late arm (p=0.51). Conclusion : There were no statistical differences in the overall survival rate and the pattern of failure between the early and late alternating RT/CT in patients with limited-disease small cell lung cancer.

목적 : 국한성병기 소세포폐암의 교대 방사선-항암제 병행치료(alternating radio-chemotherapy)에서 방사선치료의 시기의 차이에 따른(조기 혹은 지연) 치료반응률, 생존율, 재발양상, 치료에 따른 부작용을 비교하기 위해 전향적 무작위 비교연구를 시행하였다. 대상 및 방법 : 1993년 8월부터 1996년 8월까지 국한성병기 소세포폐암으로 진단받은 환자들은 연세암센터에서 조기(early arm) 혹은 지연(delayed arm) 교대 방사선-항암제치료군으로 무작위 분류되었다. 총 56명의 환자 중 44명이 비교분석 되었다. 환자들의 특성은 양군간에 차이가 없었다. 교대 방사선-항암제치료는 항암제치료기간 중 방사선 치료를 쉬는 방법으로 교대로 쉬지 않고 치료를 하는 방법으로 조기방사선치료군(N=22)은 항암제 1차치료 후 방사선치료를 시작하였고 지연방사선치료군(N=22)은 3차 항암제치료후 방사선치료를 시작하였다. 방사선치료는 1.8 Gy/fr으로 54 Gy/30 fr을 조사하였고 항암제치료는 Ifosfamide $1.5\;g/m^2$, 정맥주사로 제1일에서 5일까지 투여하였고 Carboplatin AUC (area under the concentration-time eurve) 5/day, 정맥주사로 제 2일째 투여하였으며 4주 간격으로 총6회 시행하였다. 관해율은 방사선치료 종료 한달 뒤 판정하였고 부작용의 빈도와 정도는 RTOG 등급체계를, 생존율은 Kaplan-Meier 법을 사용하였고, 비교는 Log-rank test를 이용하였다. 결과 : 치료에 대한 반응률은 조기군 $86\%$, 지연군 $85\%$로 차이가 없었다. 전체환자의 2년 생존율은 $18.9\%$, 중앙생존기간 15개월이었다. 치료시기별 2년 생존율, 중앙생존기간은 조기군 $22.7\%$와 15개월, 지연군 $14.9\%$와 17개월로 통계적으로 유의한 차이가 없었다(p=0.47). 2년 무재발생존율은 조기군 $19.1\%$, 지연군 $19.6\%$로 차이가 없었다(p=0.52), 국소재발은 조기군 $43\%$, 지연군 $45\%$로 차이가 없었고, 원격전이는 조기군 $81\%$, 지연군 $70\%$으로 재발양상에서도 차이가 없었다. 첫 재발부위로 뇌전이는 조기군 $23\%$, 지연군 $35\%$로 차이가 없었다(p=0.51). 치료에 따른 부작용(RTOG 등급 $3\~4$)도 양군간에 차이가 없었다. 치료에 대한 순응도를 비교해볼 때 항암제치료를 6회 이상 시행받은 환자가 조기군 $82\%$, 지연군 $77\%$, 방사선치료를 45 Gy 이상 받은 환자가 조기군 $82\%$, 지연군 $91\%$로 양군간에 차이가 없었고 양군에서 대부분의 환자들은 치료에 잘 순응하였다. 결론 : 국한성병기 소세포폐암의 교대 방사선-항암제치료시 방사선치료를 조기 혹은 지연하여 시행하였을 때 치료 반응률, 생존율, 재발양상, 부작용에는 차이가 없었으며 교대 방사선-항암제치료에 대한 환자들의 순응도는 높았다.

Keywords

References

  1. Cancer prevalence statistics. 21th Korean Central Cancer Registry Report, National Cancer Center, 2001
  2. Cancer death statistics. Annual report on the cause of the death statistics, Korean National Statistical Office, 2001
  3. Scientific Committe of Korean Academy of Tuberculosis and Respiratory Disease. National survey of lung cancer in Korea, J Korean Aca Tuber Res Dis 1999:46:455-465
  4. Pignon JP, Arriagada R, Ihde DC, et al. A meta-analysis of thoracic radiotherapy for small cell lung cancer. N Engl J Med 1992;327:1618-1624 https://doi.org/10.1056/NEJM199212033272302
  5. Warde P, Payne D. Does thoracic irradiation improve survival and local control in limited-stage small-cell carcinoma of the lung? A meta-analysis. J Clin Oncol 1992;10:890-895 https://doi.org/10.1200/JCO.1992.10.6.890
  6. Perry M, Eaton WL, Propert KJ, et al. Chemotherapy with or without radiation therapy in limited small-cell carcinoma of the lung. N Engl J Med 1987;316:912-918 https://doi.org/10.1056/NEJM198704093161504
  7. Murray N, Coy P, Pater JL, et al. Importance of timing for thoracic irradiation in the combined modality treatment of limited-stage small-cell lung cancer. J Clin Oncol 1993;11:336-344 https://doi.org/10.1200/JCO.1993.11.2.336
  8. Arriagada R, Le Chevalier T, Baldeyrou P, et al. Alternating radiotherapy and chemotherapy schedules in small cell lung cancer, limited disease. Int J Radiat Oncol Biol Phys 1985;11:146-1467
  9. DeVita VT, Hellman S, Rosenberg SA. Cancer; Principle & Practice of Oncology, 6th ed. Philadelphia, PA: Lippincott Williams & Wilkins Co. 2001;994-995
  10. Lebeau B, Urban T, Brechot J-M, et al. A randomized clinical trial comparing concurrent and alternating thoracic irradiation for patients with limited small cell lung carcinoma. Cancer 1999;86:1480-1487 https://doi.org/10.1002/(SICI)1097-0142(19991015)86:8<1480::AID-CNCR14>3.0.CO;2-O
  11. Takada M, Fukuoka M, Furuse K, et al. A phase III study of concurrent versus sequential thoracic radiotherapy in combination with cisplatin and etoposide for limited- stage small cell lung cancer : preliminary results of the Japan Clinical Oncology Group. Proc Am Soc Clin Oncol 1996;15:372
  12. Jeremic B, Shibamoto Y, Acimovic L, and Milisavljevic S. Initial versus delayed accelerated hyperfractionated radiation therapy and concurrent chemotherapy in limited smallcell lung cancer : a randomized study. J Clin Oncol 1997;15:893-900 https://doi.org/10.1200/JCO.1997.15.3.893
  13. Murry N, Coldman A. The relationship between thoracic irradiation timing and long-term survival in combined modality therapy of limited small cell lung cancer. Proc Am Soc Clin Oncol 1995;14:1099A
  14. Goldie JH and Coldman AJ. A methetical model for relating the drug sesitivity of tumors to their spontaneous mutation rate. Cancer Treat Rep 1979;63:1727-1733
  15. Lebeau B. Chastang C. Brechot JM. Capron F. A randomized trial of delayed thoracic radiotherapy in complete responder patients with small-cell lung cancer. PetitesCellules Group. Chest 1993;104:726-733
  16. Kies MS, Mira JG, Crowley JJ, et al. Multimodality therapy for limited small-cell lung cancer: a randomized study of induction combination chemotherapy with or without thoracic radiation in complete responders; and with wide-field versus reduced field radiotherapy in partial responders : a Southwest Oncology Group study. J Clin Oncol 1987;5:592-600 https://doi.org/10.1200/JCO.1987.5.4.592
  17. Kumar P. The role of thoracic radiotherapy in management of limited-stage small cell lung cancer; past, present, and future. Chest 1997;112:259s-265s
  18. Work E, Nielsen OS, Bentzen SM, Fode K, and Palshof K. Randomized study of initial versus late chest irradiation combined with chemotherapy in limited-stage small-cell lung cancer. Aarhus Lung Cancer Group. J Clin Oncol 1997;15:3030-3037 https://doi.org/10.1200/JCO.1997.15.9.3030
  19. Wagner H. Jr. Radiation therapy in the management of limited small cell lung cancer: when, where, and how much. Chest 1998;113:92S-100S https://doi.org/10.1378/chest.113.1_Supplement.92S
  20. Auchter RM. Early versus late irradiation in small-cell lung cancer (Letter to editor). J Clin Oncol 1997;15:1235
  21. Gregor A, Drings P, Burghouts J, et al. Randomized trial of alternation versus sequential radiotherapy /chemotherapy in limited-disease patients with small-cell lung cancer : A European Organization for Research and Treatment of Cancer Lung Cancer Cooperative Group study. J Clin Oncol 1997;15:2840-2849 https://doi.org/10.1200/JCO.1997.15.8.2840
  22. Turrisi AT, Kim K, Blum R, et al. Twice-daily compared with once-daily thoracic radiotherapy in limited small-cell lung cancer treated concurrently with cisplatin and etoposide. N Eng J Med 1999;340:265-271 https://doi.org/10.1056/NEJM199901283400403
  23. Komaki R, Shin DM, Glisson BS, et al. Interdigitating versus concurrent chemotherapy and radiotherapy for limited small cell lung cancer. Int J Radiat Oncol Biol Phys 1995;31:807-811 https://doi.org/10.1016/0360-3016(94)00463-3
  24. Kim MK, Ahn YC, Park K. et al. Combined chemotherapy and radiotherapy in limited disease small-cell lung cancer. J Korean Soc Ther Radiol Oncol 1999;17:9-15
  25. Lee CG, Loh JJK, Park KR, et al. The treatment results of combination of radiotherapy and chemotherapy in limited stage small cell lung cancer. J Korean Cancer Assoc 1990;22:131-143