Phase II trial of neoadjuvant/adjuvant imatinib mesylate (IM) for advanced primary and metastatic/recurrent operable gastrointestinal stromal tumor (GIST): early results of RTOG 0132/ACRIN 6665.

Phase II trial of neoadjuvant/adjuvant imatinib mesylate (IM) for advanced primary and metastatic/recurrent operable gastrointestinal stromal tumor (GIST): early results of RTOG 0132/ACRIN 6665.
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DOI:
10.1002/jso.21160
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发表时间:
2009-01-01
影响因子:
2.5
通讯作者:
von Mehren, Margaret
von Mehren, Margaret
中科院分区:
医学3区
文献类型:
--
作者:
Eisenberg, Burton L.;Harris, Jonathan;Blanke, Charles D.;Demetri, George D.;Heinrich, Michael C.;Watson, James C.;Hoffman, John P.;Okuno, Scott;Kane, John M.;von Mehren, Margaret

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胃肠道间质瘤(GIST)的治疗随着甲磺酸伊马替尼(IM)的使用发生了显著变化。尽管这种药物在转移性GIST中取得了成功,但疾病进展仍然是一个令人困惑的临床问题,表明需要多模式管理。目前还没有前瞻性研究评估IM在原发性GIST中的新辅助使用或作为转移性GIST的术前细胞减少剂。RTOG 0132是一项前瞻性II期研究,评估新辅助IM (600 mg/天)用于原发性GIST患者或可手术转移性GIST患者术前使用IM的安全性和有效性。试验在停药后继续进行了2年。纳入63例患者(52例可分析),其中30例为原发GIST (A组),22例为转移性GIST (B组)。A组的反应(RECIST)为(7%部分,83%稳定,10%未知),B组为(4.5%部分,91%稳定,4.5%进展)。2年无进展生存率(A组83%,B组77%)。估计总生存率(A组93%,B组91%)。手术并发症和IM毒性最小。该试验是GIST术前IM的首个前瞻性报告。这种方法是可行的,需要多学科会诊,与明显的术后并发症无关。
Therapy for gastrointestinal stromal tumors (GIST) has changed significantly with the use of Imatinib Mesylate (IM). Despite the success of this drug in metastatic GIST, disease progression remains a perplexing clinical issue suggesting the need for multimodality management. There have been no prospective studies either evaluating the neoadjuvant use of IM in primary GIST or as a preoperative cytoreduction agent for metastatic GIST. RTOG 0132 was a prospective phase II study evaluating safety and efficacy of neoadjuvant IM (600 mg/day) for patients with primary GIST or the preop use of IM in patients with operable metastatic GIST. The trial continued postop IM for 2 years. 63 patients were entered (52 analyzable), 30 patients with primary GIST (Group A) and 22 with metastatic GIST (Group B). Response (RECIST) in Group A was (7% partial, 83% stable, 10% unknown), in Group B (4.5% partial, 91% stable, 4.5% progression). Two year progression free survival (Group A 83%, Group B 77%). Estimated overall survival (Group A 93%, Group B 91%). Complications of surgery and IM toxicity were minimal. This trial represents the first prospective report of preop IM in GIST. This approach is feasible, requires multidisciplinary consultations, is not associated with notable postop complications.
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