Corry June, Peters Lester J, Costa Ieta D', Milner Alvin D, Fawns Helen, Rischin Danny, Porceddu Sandro
Division of Radiation Oncology, Peter MacCullum Cancer Centre, East Melbourne, Victoria, Australia.
Radiother Oncol. 2005 Nov;77(2):137-42. doi: 10.1016/j.radonc.2005.10.008. Epub 2005 Nov 2.
The primary objective of this study was to estimate the rate of tumour response to a cyclical hypofractionated palliative radiotherapy regimen (QUAD SHOT) in previously untreated patients with incurable squamous cell carcinoma of the head and neck. Secondary objectives were to prospectively evaluate toxicity, quality of life (QoL) and survival in these patients.
The QUAD SHOT consisted of 14 Gy in four fractions, given twice a day and at least 6h apart, for 2 consecutive days. This regimen was repeated at 4 weekly intervals for a further two courses if there was no tumour progression. The QoL tool used was an abbreviation of the EORTC QLQ-C30.
Thirty eligible patients (29 Stage IV, 20 performance status 2-3) had at least one treatment and 16 patients completed all three cycles. Sixteen patients (53%) had an objective response (2CR, 14PR) and a further seven had stable disease. Median overall survival was 5.7 months, median progression free survival was 3.1 months. The treatment was very well tolerated, with improved QoL in 11 of 25 evaluable patients (44%).
The QUAD SHOT regimen is an effective palliative treatment with minimal toxicity and a good response rate, which impacts positively on patients' QoL.
本研究的主要目的是评估在先前未接受治疗的不可治愈的头颈部鳞状细胞癌患者中,采用周期性低分割姑息性放疗方案(QUAD SHOT)时肿瘤的反应率。次要目的是前瞻性评估这些患者的毒性、生活质量(QoL)和生存率。
QUAD SHOT方案为分4次给予14 Gy,每天2次,间隔至少6小时,连续2天。如果没有肿瘤进展,则每4周重复该方案,再进行两个疗程。所使用的生活质量工具是欧洲癌症研究与治疗组织QLQ-C30量表的简化版。
30例符合条件的患者(29例为IV期,20例体能状态为2 - 3级)至少接受了一次治疗,16例患者完成了所有三个周期的治疗。16例患者(53%)有客观反应(2例完全缓解,14例部分缓解),另有7例病情稳定。中位总生存期为5.7个月,中位无进展生存期为3.1个月。该治疗耐受性良好,25例可评估患者中有11例(44%)生活质量得到改善。
QUAD SHOT方案是一种有效的姑息性治疗方法,毒性极小,反应率良好,对患者的生活质量有积极影响。