生物粘附凝胶用于口腔癌化学预防的临床评价
研究概览
详细说明
四十一 (41) 名经显微镜证实为癌前口腔上皮疾病(上皮发育不良)的患者将在三个临床中心(即俄亥俄州立大学、北卡罗来纳大学教堂山分校和路易斯维尔大学)参加这项试验。 在这三个机构中,一半的参与者将被随机分配到 10% FBR 凝胶(每次 0.5 克,每天四次,持续 3 个月),而另一半将进入安慰剂对照组。
根据既定的护理标准,所有参与者都需要对其可疑的口腔病变进行活检以确定诊断(非研究)。 试验参与者将进行三份活检。 预处理活检将需要:1) 用于 FBR 代谢分析研究的病灶周围组织和单个唾液样本(在单次 0.5 gm 应用 10% FBR 凝胶用于代谢分析后 15 分钟获取组织和唾液。 在对病变组织进行切开活检之前,将获得凝胶应用和非病变活检),以及 2)对病变组织进行半切以建立诊断并为实验参数提供预处理基线。 虽然预处理活检包括去除病灶周围和病灶组织,但由于病灶周围组织与病灶组织相邻,因此只有一个手术伤口。 治疗 3 个月后,将进行治疗部位的最终切除活检,包括任何残留的病变组织(口腔发育不良病变的切除符合当前的护理标准)。 实验设计允许每位患者作为他们自己的内部对照。 简而言之,将在所有参与者中监测以下参数(相对于患者匹配的预处理与治疗后活检进行的比较):1)光学显微镜诊断,2)临床表现和病变大小,3)微阵列基因表达分析,4)微血管密度表层结缔组织,5) 与抑癌基因相关位点的 LOH 指数,6) COX-2 和 iNOS 蛋白的上皮内水平(图像分析定量免疫组织化学),7) FBR 代谢谱与化学预防功效程度的比较。
研究类型
注册 (实际的)
阶段
- 阶段2
- 阶段1
联系人和位置
学习地点
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Kentucky
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Louisville、Kentucky、美国、40202
- University of Louisville, School of Dentistry
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North Carolina
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Chapel Hill、North Carolina、美国、27599
- University of North Carolina at Chapel Hill
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Ohio
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Columbus、Ohio、美国、43202
- The Ohio State University, College of Dentistry
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
纳入标准:
- 年龄:21至80
- 显微镜证实的癌前口腔上皮疾病
- 既往无癌症病史(皮肤基底细胞癌除外)
- 在进入试验前至少六周禁烟,并在研究期间的三个月内保持禁烟
- 必要的研究后续评估的可用性(试验期间每 10 至 14 天)
- 能够提供知情同意。
排除标准:
- 既往癌症史(皮肤基底细胞癌除外)
- 当前使用烟草产品或拒绝在研究的三个月期间保持无烟状态
- 缺乏显微镜证实的癌前口腔上皮变化
- 口腔鳞状细胞癌的显微诊断
- 头颈部同侧放射治疗史
- 对任何种类的浆果过敏史
- 试验期间确定怀孕或计划怀孕的女性
- 正在哺乳的妇女。
学习计划
研究是如何设计的?
设计细节
- 主要用途:预防
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:双倍的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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有源比较器:含 10% FBR 的生物粘附凝胶
药物由含有 10% FBR 的生物粘附凝胶组成。
参与者指示每天四次将 0.5 克含 10% FBR 的生物粘附凝胶涂抹到损伤部位
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0.5 gm 每天 4 次应用于口腔癌前病变部位,持续 3 个月
其他名称:
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安慰剂比较:安慰剂凝胶
颜色/稠度匹配的安慰剂(无黑莓)凝胶
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0.5 gm 每天 4 次应用于口腔癌前病变部位,持续 3 个月
其他名称:
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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光学显微镜组织学评分诊断预处理到治疗后
大体时间:3个月治疗前后。
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在 3 个月的治疗之前,将对病变组织进行半切,以确定诊断并为实验参数提供治疗前基线。
治疗部位的切除活组织检查包括任何剩余的残留病变组织(口腔发育不良病变的切除与当前护理标准一致)将在治疗 3 个月后获得,以提供治疗后诊断。
0 到 8 的组织学等级是:0 = 正常,有或没有角化过度,1 = 异型,2 = 轻度异型增生,3 = 轻度-中度异型增生,4 = 中度异型增生,5 = 中度-重度异型增生,6 = 重度异型增生,7=原位癌,8=浸润性口腔鳞状细胞癌(最坏结果)。
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3个月治疗前后。
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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病变大小的变化
大体时间:预处理和后处理(3个月的治疗时间)
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将在每次跟进预约(每 10-14 天)时检查剩余的口腔发育不良病变。
将立即对有任何恶性转化迹象的患者进行活检,包括硬化、卷边、不愈合的溃疡等。因此,这些患者将退出试验。
还将监测参与者是否有任何与接触性粘膜炎一致的变化,例如
应用部位的酸痛和红斑。
为患者记录拍摄临床照片。
治疗前和治疗后的照片,带有适当的尺子,用于准确的治疗前和治疗后尺寸测量。
注意:如果治疗有益,则病变大小会减小,这将反映为负数。
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预处理和后处理(3个月的治疗时间)
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杂合性丢失事件的治疗变化
大体时间:3个月治疗时间前后
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将进行实验室实验以评估凝胶处理对与肿瘤抑制基因相关的位点杂合性丢失 (LOH) 事件前后的影响。
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3个月治疗时间前后
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合作者和调查者
合作者
调查人员
- 首席研究员:Susan R Mallery, DDS, PhD、Ohio State University
出版物和有用的链接
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研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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