Ignite Creation Date:
2025-12-24 @ 12:16 PM
Ignite Modification Date:
2026-02-10 @ 1:11 AM
Study NCT ID:
NCT02781961
Status:
TERMINATED
Last Update Posted:
2020-07-17
First Post:
2016-05-17
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Identification of In-vivo Probe Based Confocal Laser Endomicroscopy Cellular Characteristics in Obese Women
Sponsor:
Sheba Medical Center
Organization:
Study Overview
Official Title:
Identification of In-vivo Probe Based Confocal Laser Endomicroscopy (pCLE) Gastric & Duodenal Cellular Characteristics in Obese Women Before & After Weight Reduction
Status:
TERMINATED
Status Verified Date:
2020-07
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Previous studies have shown that histological changes in the gastric mucosa between obese and non-obese individuals do exist. Understanding these histological differences (between obese and non-obese individuals) might elucidate obesity pathophysiology.
However, the data is scarce and even contradictory. Even less is known about the histological characteristics of the duodenal mucosa in obesity and lean states, but several studies already performed hint for some differences. These differences might influence gut hormones composition and function and play a crucial role in the development of obesity and metabolic syndrome. To our best knowledge, in-vivo, human, real-time cellular level comparison of gastric and duodenal mucosa has never been done. This can be now accomplished with pCLE.
pCLE, is composed from a miniature microscope assembled in the tip of an optical fiber. This optic fiber is then inserted through the working channel of a standard endoscope, bringing the microscope at the tip of the fiber to close proximity with the tissue. The system applies a blue-light laser that after staining with fluorescein (IV 2.5 ml, 10% fluorescein, once) provides a cellular-level, in-vivo, real time images: the concept of so called "optical biopsies". The system has been used as an auxiliary tool in GI-endoscopy in recent years. This technology has been shown to be useful in identifying objective histological features and even intramucosal bacteria in different tissues.
However, the data is scarce and even contradictory. Even less is known about the histological characteristics of the duodenal mucosa in obesity and lean states, but several studies already performed hint for some differences. These differences might influence gut hormones composition and function and play a crucial role in the development of obesity and metabolic syndrome. To our best knowledge, in-vivo, human, real-time cellular level comparison of gastric and duodenal mucosa has never been done. This can be now accomplished with pCLE.
pCLE, is composed from a miniature microscope assembled in the tip of an optical fiber. This optic fiber is then inserted through the working channel of a standard endoscope, bringing the microscope at the tip of the fiber to close proximity with the tissue. The system applies a blue-light laser that after staining with fluorescein (IV 2.5 ml, 10% fluorescein, once) provides a cellular-level, in-vivo, real time images: the concept of so called "optical biopsies". The system has been used as an auxiliary tool in GI-endoscopy in recent years. This technology has been shown to be useful in identifying objective histological features and even intramucosal bacteria in different tissues.
Detailed Description:
Previous studies have shown that histological changes in the gastric mucosa between obese and non-obese individuals do exist, mainly in the cells producing the hormone ghrelin, but also in other gut hormones. Understanding these histological differences (between obese and non-obese individuals) might elucidate obesity pathophysiology, however, the data is scarce and even contradictory. Even less is known about the histological characteristics of the duodenal mucosa in obesity and lean states, but several studies already performed hint for some differences.. In conclusion, the investigators assume that obese and non-obese individuals may have gastric and/or duodenal histological differences. These differences might influence gut hormones composition and function and play a crucial role in the development of obesity and metabolic syndrome. To our best knowledge, in-vivo, human, real-time cellular level comparison of gastric and duodenal mucosa as well as differences in the microbiome of the stomach and duodenum between obese and non-obese individuals has never been done. This can be now accomplished with pCLE.
pCLE, is composed from a miniature microscope assembled in the tip of an optical fiber. This optic fiber is then inserted through the working channel of a standard endoscope, bringing the microscope at the tip of the fiber to close proximity with the tissue. The system applies a blue-light laser that after staining with fluorescein (IV 2.5 ml, 10% fluorescein, once) provides a cellular-level, in-vivo, real time images: the concept of so called "optical biopsies". The system has been used as an auxiliary tool in GI-endoscopy in recent years. This technology has been shown to be useful in identifying objective histological features and even intramucosal bacteria in different tissues.
pCLE, is composed from a miniature microscope assembled in the tip of an optical fiber. This optic fiber is then inserted through the working channel of a standard endoscope, bringing the microscope at the tip of the fiber to close proximity with the tissue. The system applies a blue-light laser that after staining with fluorescein (IV 2.5 ml, 10% fluorescein, once) provides a cellular-level, in-vivo, real time images: the concept of so called "optical biopsies". The system has been used as an auxiliary tool in GI-endoscopy in recent years. This technology has been shown to be useful in identifying objective histological features and even intramucosal bacteria in different tissues.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: