A Microdose Evaluation Study of ABY-029 in Recurrent Glioma (ABY-029)
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|ClinicalTrials.gov Identifier: NCT02901925|
Recruitment Status : Recruiting
First Posted : September 15, 2016
Last Update Posted : May 6, 2020
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.
|Condition or disease||Intervention/treatment||Phase|
|Glioma||Drug: ABY-029||Early Phase 1|
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.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||12 participants|
|Intervention Model:||Single Group Assignment|
|Intervention Model Description:||Pilot feasibility study|
|Masking:||None (Open Label)|
|Masking Description:||open label|
|Primary Purpose:||Basic Science|
|Official Title:||A Phase 0 Open Label, Single-center Clinical Trial of ABY-029, an Anti-EGFR Fluorescence Imaging Agent Via Single Intravenous Injection to Subjects With Recurrent Glioma|
|Actual Study Start Date :||February 13, 2017|
|Estimated Primary Completion Date :||December 31, 2020|
|Estimated Study Completion Date :||December 31, 2020|
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.
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.
- signal detection [ Time Frame: 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.
- diagnostic accuracy of ABY-029 detection [ Time Frame: 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.
- molecular uptake [ Time Frame: during procedure ]molecular uptake and concentration of ABY-029 will be measured in resected specimens.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02901925
|Contact: Keith D Paulsen, PhDfirstname.lastname@example.org|
|United States, New Hampshire|
|Dartmouth-Hitchcock Medical Center||Recruiting|
|Lebanon, New Hampshire, United States, 03756|
|Principal Investigator:||David W Roberts, MD||Dartmouth-Hitchcock Medical Center|