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Hyperfractionated Radiotherapy Following Induction Chemotherapy for Stage ¥² Non-Small Cell Lung Cancer-Random iced for Adjuvant Chemotherapy vs. Observation-

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ÀåÇý¼÷(Chang Hye-Sook) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø Ä¡·á¹æ»ç¼±°úÇб³½Ç
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¾ç±¤¸ð(Yang Gwang-Mo) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø Ä¡·á¹æ»ç¼±°úÇб³½Ç
¼­Ã¶¿ø(Suh Chul-Won) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø ³»°úÇб³½Ç
À̱ÔÇü(Lee Kyoo-Hyung) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø ³»°úÇб³½Ç
ÀÌÁ¤½Å(Lee Jung-Shin) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø ³»°úÇб³½Ç
±è»óÈñ(Kim Sang-Hee) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø ³»°úÇб³½Ç
°íÀ±¼®(Koh Youn-Suck) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø ³»°úÇб³½Ç
±è¿ì¼º(Kim Woo-Sung) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø ³»°úÇб³½Ç
±è¿øµ¿(Kim Won-Dong) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø ³»°úÇб³½Ç
¼Û±º½Ä(Song Koun-Sik) - ¿ï»ê´ëÇб³ ÀÇ°ú´ëÇÐ ¼­¿ïÁß¾Óº´¿ø Áø´Ü¹æ»ç¼±°úÇб³½Ç
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Abstract

ÀýÁ¦ ºÒ°¡´ÉÇÑ Á¦3±â ºñ¼Ò¼¼Æ÷ Æó¾Ï¿¡¼­ÀÇ MVP(Mitomycin C6 mg/m2, Vinblastine 6 mg/ m2, Cisplatin 60 mg/ m2) º¹ÇÕ Ç׾Ͽä¹ý°ú ´ÙºÐÇÒ ¹æ»ç¼± Ä¡·áÀÇ È¿°ú¸¦ ÆÇÁ¤Çϱâ À§ÇÏ¿© 1991³â 1¿ùºÎÅÍ ÀüÇ⼺ ÀÓÀÇ ¼±Åÿ¬±¸(prospective randomized study)¸¦ ½ÃÀÛÇÏ¿´´Ù.
º» ¿¬±¸´Â Á¦¥²±âÀÇ ºñ¼Ò¼¼Æ÷ Æó¾ÏÁß ÀýÁ¦°¡ ºÒ°¡´ÉÇÑ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¿© MVP Ç׾Ͽä¹ýÀ» 3ȸ ½ÃÇàÇÑ ÈÄ ´ÙºÐÇÒ ¹æ»ç¼± Ä¡·á(120 cGy/fx, BID)¸¦ 6480 cGs±îÁö ½ÃÇàÇÏ¿´´Ù. ¹æ»ç¼± Ä¡·á°¡ ³¡³­ 1°³¿ù ÈÄ À¯µµ Ç׾Ͽä¹ý¿¡ ºÎºÐ °üÇØ ÀÌ»óÀÇ ¹ÝÀÀÀ» º¸¿´´ø ȯÀÚ¸¦ ´ë»óÀ¸·Î Ãß°¡ Ç׾Ͽä¹ýÀ» ½ÃÇàÇÏ´Â ±º°ú °è¼Ó °üÂûÇÏ´Â ±ºÀ¸·Î ÀÓÀÇ ºÐ·ùÇÏ¿´´Ù.
1992³â 12¿ù±îÁö 48¸íÀÇ È¯ÀÚ°¡ µî·ÏµÇ¾úÀ¸¸ç, ÀÌÁß 3¸íÀº Ç׾Ͽä¹ý ÈÄ Ä¡·á¸¦ Áß´ÜÇÏ¿´À¸¸ç, 6¸íÀº ¹æ»ç¼± Ä¡·á Áß Ä¡·á¸¦ Áß´ÜÇϰųª, °³ÀÎÀû »çÁ¤À¸·Î ´ÙºÐÇÒ ¹æ»ç¼± Ä¡·á¸¦ ½ÃÇà¹ÞÁö ¸øÇÏ¿© 39¸íÀÇ È¯ÀÚ¿¡ ´ëÇÑ ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù. À¯µµ Ç׾Ͽä¹ýÀ» ¸¶Ä£ ȯÀÚ Áß 2¸íÀº ¿ÏÀü °üÇظ¦ º¸¿´À¸¸ç, 21¸íÀº ºÎºÐ °üÇظ¦ º¸¿© MVP À¯µµÇ׾Ͽä¹ý¿¡ ´ëÇÑ °üÇØÀ²Àº 58%(23/39)À̾ú´Ù. Ç׾Ͽä¹ý¿¡ ºÎºÐ°üÇظ¦ º¸ÀÎ 21¸í Áß 1¸íÀº ¹æ»ç¼± Ä¡·á ÈÄ ¿ÏÀü°üÇظ¦ º¸¿´À¸¸ç, 10¸íÀº ºÎºÐ°üÇظ¦ º¸¿´À¸³ª, ³ª¸ÓÁö 10¸íÀº ¹æ»ç¼± Ä¡·á¿¡ ¹ÝÀÀÀ» º¸ÀÌÁö ¾Ê¾Ò´Ù. Ç׾Ͽä¹ý¿¡ ¹ÝÀÀÀ» º¸ÀÌÁö ¾Ê¾Ò´ø 16¸íÀÇ È¯ÀÚ Áß 9¸íÀº ¹æ»ç¼± Ä¡·á¿¡µµ ÀüÇô ¹ÝÀÀÀ» º¸ÀÌÁö ¾Ê¾Ò´Ù. À¯µµÇ×¾Ï ¿ä¹ý°ú ´ÙºÐÇÒ ¹æ»ç¼± Ä¡·áÈÄÀÇ °üÇØÀ²Àº 64%À̾ú´Ù. ¹æ»ç¼± Ä¡·á ÈÄ 19¸íÀÇ È¯ÀÚ¿¡ ´ëÇÏ¿© Ãß°¡ Ç׾Ͽä¹ý¿¡ ´ëÇÑ ÀÓÀÇ ¼±ÅÃÀ» ½ÃÇàÇÏ¿© ÀÌÁß 9¸íÀº Ãß°¡ Ç׾Ͽä¹ý ±ºÀ¸·Î ºÐ·ùµÇ¾î, 3ȸÀÇ Ãß°¡ Ç׾Ͽä¹ýÀ» ½ÃÇàÇÏ¿´´Ù. ¾ÆÁ÷±îÁö´Â Ãß°¡ Ç׾Ͽä¹ý±º°ú °üÂû±º »çÀÌ¿¡ ¿ø°ÝÀüÀ̳ª »ýÁ¸À²ÀÇ Â÷ÀÌ°¡ °üÂûµÇÁö ¾Ê¾Ò´Ù. Àüü ȯÀÚÀÇ Áß¾Ó »ýÁ¸Àº 13°³¿ùÀ̾ú°í, 6°³¿ù°ú 12°³¿ùÀÇ »ýÁ¸À²Àº °¢°¢ 84.6%¿Í 53.7%, 40.3%À̾ú´Ù. ƯÈ÷ À¯µµÇ׾Ͽä¹ý¿¡ ºÎºÐ°üÇØ ÀÌ»óÀÇ ¹ÝÀÀÀ» º¸¿´´ø ȯÀÚµéÀº ¹«¹ÝÀÀȯÀÚ¿¡ ºñÇÏ¿© Åë°èÀûÀ¸·Î À¯ÀÇÇÏ°Ô Áõ°¡µÈ »ýÁ¸À²À» º¸¿´´Ù(p=0.0287).
¾ÆÁ÷±îÁö ÃßÀû °üÂû±â°£ÀÌ ÂªÀ¸³ª, 64%ÀÇ ³ôÀº Ä¡·á °üÇØÀ²°ú Áõ°¡µÈ »ýÁ¸À², ±×¸®°í ÇÕº´ÁõÀÇ Áõ°¡°¡ °üÂûµÇÁö ¾Ê´Â Á¡À¸·Î º¸¾Æ º» ¿¬±¸¸¦ °è¼Ó ÁøÇàÇÔÀ¸·Î½á ´õ Á¾Àº °á°ú¸¦ ¾òÀ» ¼ö ÀÖÀ» °ÍÀ¸·Î ±â´ëµÈ´Ù.
Since Jan. 1991 a prospective randomized study for Stage ¥² unresectable non small cell lung cancer(NSCLC) has been conducted to evaluate the response rate and tolerance of induction chemotherapy with MVP followed by hyperfractionated radiotherapy and evaluate the efficacy of maintenance chemotherapy in Asan Medical Center.
All patients in this study were treated with hypefractionated radiotherapy (120 cGy/fx BID, 0480 cGy/54 fx) following 3 cycles of induction chemotherapy, MVP (Mitomycin C 6 mg/m2, Vinblastin B mg/ m2, Cisplatin 60 Mg/ m2) and then the partial and complete responders from induction chemotherapy were randomized to 3 cycles of adjuvant MVP chemotherapy group and observation group. 48 patients were registered to this study until December 1992; among 48 patients 3 refused further treatment after induction chemotherapy and 6 received incomplete radiation therapy because of patient¢¥s refusal, 39 completed planned therapy.
Twenty-three(58%) patients including 2 complete responders showed response from induction chemotherapy. Among the 21 patients who achieved a partial response after induction chemotherapy, 1 patient rendered complete clearance of disease and 10 patients showed further regression of tumor following hypefractionated radiotherapy. Remaining 10 patients showed stable disease or progression after radiotherapy. Of the sixteen patients judged to have stable disease or progression after induction chemotherapy, seven showed more than partial remission after radiotherapy but nine showed no response in spite of radiotherapy. Of the 35 patients who completed induction chemotherapy and radiotherapy, 25 patients(64%) including 3 complete responders showed more than partial remission. Nineteen patients were randomized after radiotherapy. Nine patients were allocated to adjuvant chemotherapy group and 4/9 shewed further regression of tumor after adjuvant chemotherapy. For the time being, there is no suggestion of a difference between the adjuvant chemotherapy group and observation group in distant metastasis rate and survival. Median survival time was 13 months. Actuarial survival rates at 6, 12 and 18 months of 39 patients who completed this study were 84.6%, 53.7% and 40.3%, respectively. The partial and complete responders from induction chemotherapy showed significantly bettor survival than non-responders(p=0.028). Incidence of radiation pneumonitis in this stuffy group was less than that in historical control group inspite of induction chemotherapy.
All patients tolerated hyperfractionated radiotherapy without definite increase of acute complications compared with conventional radiotherapy group. The longer fellow up is needed to evaluate the efficacies of induction and maintenance chemotherapy and survival advantage by hypefractionated radiotherapy but authors are encouraged with an excellent tolerance, higher response rate and improvement of one year survival rate in patients of this study.

Å°¿öµå

NSCLC, Hyperfractionated radiotherapy, MVP chemotherapy
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All patients tolerated hyperfractionated radiotherapy without definite increase of acute complications compared with conventional radiotherapy group.
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DOI
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ICD 03
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