H Li1, T Y Wang2, Y Yin1, P L Wang1, Z Cheng1, J P Li3, W Li4, F Y Zhu5, C C Wu6, Z M Luo7, Y H Chen8, H Xiao9, S B Deng10, Y Q Cao11, G S Zhang1, L G Qiu2, H L Peng1. 1. The Second Xiangya Hospital, Central South University, Changsha 410011, China. 2. Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Tianjin 300020, China. 3. Changsha Central Hospital Affiliated to Nanhua University, Changsha 410000, China. 4. Hunan People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha 410000, China. 5. Loudi Central Hospital, Loudi 417000, China. 6. The Second People's Hospital of Yueyang, Yueyang 414000, China. 7. Xiangtan Central Hospital, Xiangtan 411100, China. 8. The Second Hospital, University of South China, Hengyang 421000, China. 9. The First People's Hospital of Xiangtan City, Xiangtan 411100, China. 10. Yongzhou Central Hospital, Yongzhou 425000, China. 11. The First Hospital of Changsha, Changsha 410000, China.
注:CLL:慢性淋巴细胞白血病;M-CLL:伴IGHV基因突变CLL;UM-CLL:无IGHV基因突变CLL;β2-MG:β2-微球蛋白;LDH:乳酸脱氢酶4. IGHV对TTFT的影响:中位随访时间为21个月,234例患者中有159例达到治疗指征并启动治疗。Rai低危组(Rai 0期)患者中位TTFT为36.0个月,而中危组(Rai Ⅰ~Ⅱ期)和高危组(Rai Ⅲ~Ⅳ期)患者的中位TTFT分别为20.0个月和12.0个月(P=0.020)。同时,IGHV无突变(16.0个月对36.0个月,P=0.001)、TP53基因异常(19.0个月对25.0个月,P=0.025)和LDH水平升高(12.0个月对25.0个月,P=0.017)也是显著影响TTFT的预后不良因素。MYD88基因突变和 SF3B1基因突变虽然在CLL患者中较常见,但对TTFT无显著影响。进一步分析IGHV突变状态在不同临床分期亚组患者中的预后意义,在Rai低危组患者中,IGHV基因无突变者较突变者TTFT显著缩短[35.0(95% CI 15.6~54.4)个月对103.2(95% CI 76.7~129.7)个月,P=0.002](图2A)。然而在Rai中高危组患者中,IGHV基因突变状态则对TTFT无显著影响[32.8(95% CI 22.6~43.1)个月对62.4(95% CI 46.3~78.5)个月,P=0.102](图2B)。
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