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A Microdose Evaluation Study of ABY-029 in Recurrent Glioma

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状态招聘中
赞助商
Dartmouth-Hitchcock Medical Center
合作者
Dartmouth College

关键词

抽象

The primary study objective is to determine if microdoses of ABY-029 lead to detectable signals in sampled tissues with an EGFR pathology score ≥ 1 based on histological staining.
The secondary study objective is to assess diagnostic accuracy of ABY-029 detection by iFI and intraoperative probe relative to histopathology diagnosis, and other indicators (e.g. proliferation, infiltration, etc.) as the gold standard, and to measure the molecular uptake and concentration of ABY-029 in resected specimens.

描述

The investigators plan a sample size of 6-12 patients in this open label, single center, clinical trial of ABY-029. Administration will occur as a single intravenous injection to subjects with recurrent glioma, approximately 1-3 hours prior to surgery.

The protocol is not a safety study since no physiological effects are expected at microdose levels of ABY-029. Rather, doses have been selected to determine if a fluorescence signal can be detected by wide-field imaging technology with a signal-to-noise ratio of 10, which is considered necessary for subsequent assessment of diagnostic performance of ABY-029 as a tumor biomarker sufficient to guide surgical resection in the future. No diagnostic or therapeutic intent is proposed, and administration of the study drug is not intended to alter the extent of planned brain tumor resection during the surgical procedure.

日期

最后验证: 04/30/2020
首次提交: 09/11/2016
提交的预估入学人数: 09/13/2016
首次发布: 09/14/2016
上次提交的更新: 05/03/2020
最近更新发布: 05/05/2020
实际学习开始日期: 02/12/2017
预计主要完成日期: 12/30/2020
预计完成日期: 12/30/2020

状况或疾病

Glioma

干预/治疗

Drug: ABY-029

-

手臂组

干预/治疗
Experimental: ABY-029
ABY-029 will be administered prior to surgery. Probe will be used in vivo to determine if signal is detectable, and ex vivo tissue pathology will measure extent of binding with EGFR positive tumor tissue.
Drug: ABY-029
Using a sample size of 6-12 patients, ABY-029 will be administered via single intravenous injection to subjects with recurrent glioma, approximately 1-3 hours prior to surgery. Microdose levels of ABY-029 have been selected to determine if a fluorescence signal can be detected by wide-field imaging technology with a signal-to-noise ratio of 10, which is considered necessary for subsequent assessment of diagnostic performance of ABY-029 as a tumor biomarker sufficient to guide surgical resection in the future. Administration of the study drug is not intended to alter the extent of planned brain tumor resection during the surgical procedure.

资格标准

有资格学习的年龄 18 Years 至 18 Years
有资格学习的性别All
接受健康志愿者
标准

Inclusion Criteria:

1. Preoperative diagnosis of recurrent high-grade glioma having EGFR positive tissue from prior surgery.

2. Tumor judged to be suitable for open cranial resection based on preoperative imaging studies.

3. Valid informed consent by subject.

4. Age ≥ 18 years old.

Exclusion Criteria:

1. Pregnant women or women who are breast feeding.

2. Patients on any experimental anti-EGFR targeted therapies

结果

主要结果指标

1. signal detection [during procedure]

The primary study endpoint is signal detection (defined as Signal-to-Noise Ratio (SNR) with wide-field iFI) in vivo in brain tissues within the surgical field intended for resection that are subsequently sampled during surgery and assigned an EGFR pathology score based on histological staining.

次要成果指标

1. diagnostic accuracy of ABY-029 detection [during procedure]

Diagnostic accuracy of ABY-029 detection will be measured by iFI and intraoperative probe relative to histopathology tissue diagnosis, and other indicators (e.g. proliferation, infiltration, etc.) as the gold standard.

2. molecular uptake [during procedure]

molecular uptake and concentration of ABY-029 will be measured in resected specimens.

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