Early Detection of Tumors of the Digestive Tract by Confocal Endomicroscopy

NCT ID: NCT02284802

Last Updated: 2023-03-23

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 87 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2014-09-10
• Study Completion Date: 2023-03-10

Brief Summary

Confocal endomicroscopy is an emerging technique that allows in vivo imaging of cells and tissue structures of the gastrointestinal mucosa, with a magnification of about 1000 times, guiding optical biopsies in real time. Confocal endomicroscopy represents technique that combines conventional white light image with the confocal microscope probe, thereby allowing examination of the surface epithelium in vivo and histological diagnosis during endoscopy. Among the applications already established for its use, stand out diagnosis of Barrett's esophagus, gastric atrophy and intestinal metaplasia, celiac disease, differentiation of hyperplastic adenomatous polyps of the colon, microscopic colitis and follow-up of patients with inflammatory disease, reducing the need for endoscopic biopsies. The CLE can still detect molecular changes effectively improving the endoscopic diagnosis. This pilot project consists of 07 subprojects which the technology of confocal endomicroscopia will be evaluated and compared with the histological results of biopsy or surgical specimens:

1. confocal endomicroscopy for the diagnosis of high-grade dysplasia and superficial esophageal adenocarcinoma in patients with Barrett's esophagus 2 Diagnosis of superficial esophageal squamous cell carcinoma in patients with head and neck cancer by confocal endomicroscopy 3 Detect the presence of premalignant lesions in the gastric stump in patients with reflux alkaline gastritis after partial gastrectomy 4. detect lesions in the gastric mucosa of patients with familial history of gastric cancer 5 Biliary Strictures: differential diagnosis by confocal endomicroscopia 6 confocal Endomicroscopy of cystic neoplasms of the pancreas 7 Contribution of confocal endomicroscopy for the differential diagnosis of colorectal polyps The project aims to deploy the structure of the Confocal endomicroscopy Endoscopy ICESP, for performing in vivo histological examinations of the digestive tract, biliary tract and pancreas. All research groups involved in the early detection of tumors of the esophagus, stomach, biliary tract, pancreas, colon and rectum may benefit from the implementation of this methodology.

Detailed Description

Confocal Endomicroscopy procedure: eligible patients which consent to participate in the study will be submitted to endoscopic procedures under conscious or deep sedation. The patients will receive an intravenous injection of 2.5-5 mL of 10% sodium fluorescein at the beginning of the endoscopic procedure. The endoscope will target the area of interest and the confocal probe will be passed through the endoscope biopsy channel. The probe will gently and perpendicularly touch the mucosal surface of the area of the interest. The images will be recorded and a presumptive diagnosis will be made. The area of interest will be biopsied and the histology results will be considered the diagnostic gold standard method. We will calculate the diagnostic accuracy of the presumptive diagnosis provided by the confocal endomicroscopy examination.

Conditions

Barrett Esophagus; Gastric Antrectomy Partial; Biliary Duct Stricture; Pancreatic Duct Stricture; Colorectal Polyps; Esophageal Neoplasms; Head and Neck Neoplasms

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: DIAGNOSTIC
• Blinding Strategy: NONE

Study Groups

Confocal endomicroscopy

Pts will be submitted to confocal endomicroscopy examination of the area of interest during endoscopy. A presumptive diagnosis will be made. This diagnosis will be compared to the definitive histologic diagnosis provided by endoscopic biopsies of the area of interest.

Group Type: EXPERIMENTAL

Confocal endomicroscopy

Intervention Type: PROCEDURE

Confocal endomicroscopy examination during endoscopy

Interventions

Confocal endomicroscopy

Confocal endomicroscopy examination during endoscopy

Intervention Type: PROCEDURE

Eligibility Criteria

Inclusion Criteria

• Minimum age of 18 years old
• Clinical conditions for the proposed endoscopic procedure
• Sign the informed consent

Exclusion Criteria

• History of anaphylactic reactions to fluorescein

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Fauze Maluf Filho

OTHER

Sponsor Role: lead

Responsible Party

Fauze Maluf Filho

MD, PHD

Responsibility Role: SPONSOR_INVESTIGATOR

Principal Investigators

Fauze Maluf-FIlho, MD, PHD

Role: PRINCIPAL_INVESTIGATOR

Instituto do Cancer do Estado de São Paulo

Locations

Instituto do Câncer do Estado de São Paulo - ICESP

São Paulo, , Brazil

Countries

Brazil

References

Safatle-Ribeiro AV, Baba ER, Faraj SF, Rios JT, de Lima MS, Martins BC, Geiger SN, Pennacchi C, Gusman C, Kawaguti FS, Uemura RS, de Melo ES, Ribeiro U Jr, Maluf-Filho F. Diagnostic accuracy of probe-based confocal laser endomicroscopy in Lugol-unstained esophageal superficial lesions of patients with head and neck cancer. Gastrointest Endosc. 2017 Jun;85(6):1195-1207. doi: 10.1016/j.gie.2016.09.031. Epub 2016 Sep 30.

Reference Type: RESULT

PMID: 27697445 (View on PubMed)

Safatle-Ribeiro AV, Ryoka Baba E, Corsato Scomparin R, Friedrich Faraj S, Simas de Lima M, Lenz L, Costa Martins B, Gusmon C, Shiguehissa Kawaguti F, Pennacchi C, Zilberstein B, Ribeiro U Jr, Maluf-Filho F. Probe-based confocal endomicroscopy is accurate for differentiating gastric lesions in patients in a Western center. Chin J Cancer Res. 2018 Oct;30(5):546-552. doi: 10.21147/j.issn.1000-9604.2018.05.08.

Reference Type: RESULT

PMID: 30510366 (View on PubMed)

Baba ER, Safatle-Ribeiro AV, Paduani GF, Giovannini M, Maluf-Filho F. Probe-based confocal laser endomicroscopy for the differential diagnosis of gastric tubular adenoma and intestinal metaplasia in a patient with severe atrophic pangastritis. Gastrointest Endosc. 2016 Jul;84(1):183. doi: 10.1016/j.gie.2016.02.033. Epub 2016 Mar 3. No abstract available.

Reference Type: RESULT

PMID: 26949002 (View on PubMed)

Safatle-Ribeiro AV, Marques CFS, Pires C, Arraes L, Baba ER, Meirelles L, Kawaguti FS, da Costa Martins B, Lenz LT, de Lima MS, Gusmon-Oliveira CC, Ribeiro U Jr, Maluf-Filho F, Nahas SC. Diagnosis of Clinical Complete Response by Probe-Based Confocal Laser Endomicroscopy (pCLE) After Chemoradiation for Advanced Rectal Cancer. J Gastrointest Surg. 2021 Feb;25(2):357-368. doi: 10.1007/s11605-020-04878-y. Epub 2021 Jan 14.

Reference Type: RESULT

PMID: 33443686 (View on PubMed)

Scomparin RC, Bento LH, Batista CP, Martins BC, Lenz L, Baba ER, Safatle-Ribeiro AV, Maluf-Filho F. Application of confocal endomicroscopy in the diagnostic elucidation of pancreatic cyst. Rev Assoc Med Bras (1992). 2018 Oct;64(10):885-887. doi: 10.1590/1806-9282.64.10.885. No abstract available.

Reference Type: RESULT

PMID: 30517234 (View on PubMed)

Bastos VR, Safatle-Ribeiro AV, Baba ER, da Costa Martins B, Maluf-Filho F. The impact of probe-based confocal endomicroscopy on the management of indeterminate bile duct strictures. VideoGIE. 2017 Dec 9;3(1):26-27. doi: 10.1016/j.vgie.2017.10.003. eCollection 2018 Jan. No abstract available.

Reference Type: RESULT

PMID: 29905177 (View on PubMed)

Safatle-Ribeiro AV, Ribeiro U Jr, Lata J, Baba ER, Lenz L, da Costa Martins B, Kawaguti F, Moura RN, Pennacchi C, Gusmon C, de Lima MS, de Paulo GA, Nahas CS, Marques CF, Imperiale AR, Cotti GC, Maluf-Filho F, Nahas SC. The Role of Probe-Based Confocal Laser Endomicroscopy (pCLE) in the Diagnosis of Sustained Clinical Complete Response Under Watch-and-Wait Strategy After Neoadjuvant Chemoradiotherapy for Locally Advanced Rectal Adenocarcinoma: a Score Validation. J Gastrointest Surg. 2023 Sep;27(9):1903-1912. doi: 10.1007/s11605-023-05732-7. Epub 2023 Jun 8.

Reference Type: DERIVED

PMID: 37291428 (View on PubMed)

Other Identifiers

NP354/13

Identifier Type: -

Identifier Source: org_study_id