Xiaoyan Li1, Xiaoqing Liu1, Fang Gao1, Xiaodan Yin1. 1. Department of Lung Cancer, 307 Hospital of PLA, Affiliated to Academy of Military Medical Sciences, Beijing 100071, China.
Abstract
BACKGROUND AND OBJECTIVE: Distant metastasis was common in lung cancer, especially patients with bone marrow metastasis had poor prognosis and there were few effective methods. Crizotinib had been confirmed to be used in anaplastic lymphoma kinase (ALK) positive lung adenocarcinoma, but the efficacy in lung cancer with bone marrow metastasis was unknown. In the present study, we reported one case of ALK-positive lung adenocarcinoma with bone marrow matastasis given crizotinib treatment, the safety and efficacy was summarized. METHODS: ALK fusion was tested by fluorescence in situ hybridization (FISH). Crizotinib was given with dose of 250 mg, bid. Objective response was evaluated by Response Evaluation Criteriation in Solid Tumours (RECIST) v1.1 and bone marrow response was evaluated by bone marrow puncture and biopsy. Adeverse events were evaluated according to Common Terminology Criteria for Adverse Events (CTC AE) v4.0. RESULTS: The patient achieved partial response (PR) after 6 weeks of crizotinib, especially the objective response of bone marrow metastasis was complete response (CR). The patient stopped crizotinib because of pneumonia. The progression free survival (PFS) and overall survival (OS) was 20 weeks and 22 weeks respectively. CONCLUSION: Crizotinib could be an effective method for ALKpositive lung cancer with bone marrow metastasis and showed good tolerance.
BACKGROUND AND OBJECTIVE: Distant metastasis was common in lung cancer, especially patients with bone marrow metastasis had poor prognosis and there were few effective methods. Crizotinib had been confirmed to be used in anaplastic lymphoma kinase (ALK) positive lung adenocarcinoma, but the efficacy in lung cancer with bone marrow metastasis was unknown. In the present study, we reported one case of ALK-positive lung adenocarcinoma with bone marrow matastasis given crizotinib treatment, the safety and efficacy was summarized. METHODS:ALK fusion was tested by fluorescence in situ hybridization (FISH). Crizotinib was given with dose of 250 mg, bid. Objective response was evaluated by Response Evaluation Criteriation in Solid Tumours (RECIST) v1.1 and bone marrow response was evaluated by bone marrow puncture and biopsy. Adeverse events were evaluated according to Common Terminology Criteria for Adverse Events (CTC AE) v4.0. RESULTS: The patient achieved partial response (PR) after 6 weeks of crizotinib, especially the objective response of bone marrow metastasis was complete response (CR). The patient stopped crizotinib because of pneumonia. The progression free survival (PFS) and overall survival (OS) was 20 weeks and 22 weeks respectively. CONCLUSION:Crizotinib could be an effective method for ALKpositive lung cancer with bone marrow metastasis and showed good tolerance.
Patient's myelogram before and after treatment of crizotinib. A: Before given crizotinib theraphy, low-dif ferentiated adenocarcinoma cell infliated in b one marrow tissue and considere d coming f rom lung according to the IHC results; B: Af ter 6 wk of crizotinib, the adenocarcinoma cell disappeared. IHC: immunohistochemistry.
2
FISH法检测ALK融合基因阳性
ALK gene fusion was positive tested by FISH. ALK: anaplastic lymphoma kinase; FISH: fluorescence in situ hybridization.
患者crizotinib治疗前后的骨髓象。A:crizotinib治疗前,骨髓组织中见低分化癌侵润,结合病史及免疫组化考虑来源于肺;B:crizotinib治疗6周后,骨髓组织中未见异常细胞。Patient's myelogram before and after treatment of crizotinib. A: Before given crizotinib theraphy, low-dif ferentiated adenocarcinoma cell infliated in b one marrow tissue and considere d coming f rom lung according to the IHC results; B: Af ter 6 wk of crizotinib, the adenocarcinoma cell disappeared. IHC: immunohistochemistry.FISH法检测ALK融合基因阳性ALK gene fusion was positive tested by FISH. ALK: anaplastic lymphoma kinase; FISH: fluorescence in situ hybridization.治疗经过:患者于2013年10月10日开始全脑放疗(Dt 40 Gy/20 f/4 w),局部疗效PR。2013年11月2日给予一线化疗:培美曲噻500 mg/m2,d1。3周后复查胸部CT评价疗效,提示病情进展(progressive disease, PD),血常规示:白细胞3.5×109/L,血红蛋白88 g/L,血小板25×109/L。于2013年11月26日入我院,考虑其ALK阳性,于11月29日开始口服crizotinib,250 mg,bid。6周后按照实体瘤疗效评价标准1.1版(Response Evaluation Criteriation in Solid Tumours v1.1, RECIST v1.1)首次评价客观疗效,肺部疗效PR(图 3A、图 3B),颅内疗效PR,腹腔转移灶PR。血常规示:白细胞6.3×109/L,血红蛋白113 g/L,血小板135×109/L。再次行骨髓穿刺及活检,未见肿瘤细胞,提示骨髓完全缓解(complete response, CR)(图 1B),服用crizotinib期间,主要不良反应为乏力(1级),低蛋白血症(1级),ALT/AST升高(1级)。其后四次随访,均维持PR状态,血常规在正常范围。患者于服药20周时出现重症肺炎,停药并给予积极抗感染等内科治疗,效果欠佳,先后出现Ⅰ型及Ⅱ型呼吸衰竭,给予机械通气仍不能改善呼吸功能,于2014年5月4日死亡,自服用crizotinib起计算总生存期22周。
Clinical radiologic features of the patient. A: Before crizotinib treatment, chest CT showing huge mass lesion in left lung and minimal pleural ef fusion, patchy shadows was seen in upper lobe of right lung and lymphonodus in mediastinum; B: After 6 wk of crizotinib, CT showing obvious shrink of left lung mass and lymphonomus in mediastinum, disappeared of pleural effusion and shadow in right lung. CT: computed tomography.
患者临床影像学特征。A:患者接受crizotinib治疗前,胸部CT显示左肺巨大占位,少量胸腔积液,右肺上叶可见团片状阴影,纵隔内可见肿大淋巴结;B:患者接受crizotinib治疗6周后,复查胸部CT显示左肺巨大占位明显缩小,胸腔积液消失,右肺上叶片状影消失,纵隔内淋巴结明显缩小。Clinical radiologic features of the patient. A: Before crizotinib treatment, chest CT showing huge mass lesion in left lung and minimal pleural ef fusion, patchy shadows was seen in upper lobe of right lung and lymphonodus in mediastinum; B: After 6 wk of crizotinib, CT showing obvious shrink of left lung mass and lymphonomus in mediastinum, disappeared of pleural effusion and shadow in right lung. CT: computed tomography.
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