A In-Vivo Esophageal Protocol for Detection of Neoplasia in the Digestive Tract

NCT01630798 | Completed Phase 1 DMC

• 1 other identifier: HUM00062875
• Study Type: interventional
• Target: 60
• Locations: 1 country
• Sites: 1

Brief Summary

You are invited to participate in a research study to develop new ways to look for abnormal areas/tissues of the esophagus. The current endoscopes used to look at the esophagus are very good, but if the area doesn't look different to the naked eye, then the endoscope can't improve on that. The investigators are looking at using special fluorescent stains in addition to special endoscopes designed to see abnormal areas that are not obvious to the naked eye. Currently specialized microscopes and fluorescent stains are used in clinical laboratories but it takes several days of processing to get results. It may be very helpful to look for areas to sample for abnormal tissue during the endoscopy procedure. You are being asked to let us use "fluorescent peptides" with a special endoscope that allow us to "see" your esophagus with both fluorescent and white light during your upper GI endoscopy procedure to help target your biopsies. Peptides are small chains of amino acids (the building blocks that make up proteins) linked together. Our peptide is a chain of 7 amino acids attached to a fluorescent dye called FITC (like the one used by your eye doctor). The investigators have prepared special "fluorescent peptides", that will "glow" when a special light is used that should help us separate normal tissue from abnormal tissue. In this study, the investigators will apply the special fluorescent peptides by a spray catheter to your esophagus to help us target you biopsies. Both routine and targeted biopsies will be taken as your endoscopist feels is indicated. This is a phase 1b study. This means that although the investigators have applied the peptide to 25 people in our first research study, the investigators still need to learn more about "fluorescent peptide" in people. The Food and Drug Administration (FDA) has not approved this agent, but is allowing us to test it in this study. The main goal of this study is to see if the peptide "glows" well and if the investigators can take pictures of the areas that do glow. This is a research study of the peptide and our ability to see it "light up or fluoresce". Being in this study and applying this peptide won't change how your biopsies are taken nor how your endoscopy is done.

Conditions

Barrett's Esophagus

Keywords

barrett's esophgus; High grade dysplasia; Esophageal adenocarcinoma

Outcome Measures

Primary Outcomes (1)

• validate binding of the fluorescent-labeled peptide to esophageal neopla

  The overall aim of this research project is to develop the use of fluorescent-labeled peptides that affinity bind to pre-cancerous mucosa in the digestive tract for use as an imaging agent to guide endoscopic biopsy or endoscopic mucosal resection (EMR). This particular study is a phase Ib, vaidation of efficacy of the topically applied peptide and continuing assessment of safety. To validate binding of the fluorescent-labeled peptide to esophageal neoplasia using an Olympus FITC Endoscopic Molecular Imaging System.

  1.5 years

Study Arms (1)

Application of peptide

EXPERIMENTAL

Drug: GI heptapeptide

Interventions

GI heptapeptide DRUG

Investigational Agent Name: GI heptapeptide, Linear, 7 amino acid peptide sequence ASYNYDA with a 5-FITC tag and NH2 terminus. Investigational Agent Administration (see SOP in Appendix C) ASYNYDA-GGGSK-(5-FITC)-NH2 0.8 mg lyophilized powder per single-use amber vial Lyophilized powder reconstituted with 5 ml of 0.9% NaCl Final 100 µM concentration for single, one-time topical application Entire 5 ml volume (100 uM concentration) will be sprayed topically onto esophagus by the nurse/physician during the procedure through a standard endoscopy spray catheter (Olympus Medical, Tokyo Japan, PW-5V-1)

Application of peptide

Eligibility Criteria

• Age: 18 Years - 100 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Subjects with Barrett's Esophagus or esophageal adenocarcinoma with or without confirmed Barrett's Esophagus
• Subjects who are scheduled for a clinically-indicated upper endoscopic evaluation and/or intervention (e.g. esophagogastroduodenoscopy (EGD) with biopsies)
• Adults aged 18 years to 100
• Willing and able to sign informed consent

You may not qualify if:

• Subjects with known allergy or negative reaction to fluorescein or derivatives
• Subjects who have had an esophagectomy
• Subjects who are also prepped for colonoscopy with the EGD
• Subjects on active chemotherapy or radiation treatment

Sponsors & Collaborators

• University of Michigan: lead

Study Sites (1)

University of Michigan

Ann Arbor, Michigan, 48109, United States

Location

Related Publications (1)

• Joshi BP, Duan X, Kwon RS, Piraka C, Elmunzer BJ, Lu S, Rabinsky EF, Beer DG, Appelman HD, Owens SR, Kuick R, Doguchi N, Turgeon DK, Wang TD. Multimodal endoscope can quantify wide-field fluorescence detection of Barrett's neoplasia. Endoscopy. 2016 Feb;48(2):A1-A13. doi: 10.1055/s-0034-1392803. Epub 2015 Oct 1.

  PMID: 26426999 DERIVED

MeSH Terms

Conditions

Barrett Esophagus; Adenocarcinoma Of Esophagus

Condition Hierarchy (Ancestors)

Precancerous Conditions; Neoplasms; Esophageal Diseases; Gastrointestinal Diseases; Digestive System Diseases

Study Officials

• Danielle Kim Turgeon, M.D.

  University of Michigan

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: NA
• Masking: NONE
• Purpose: DIAGNOSTIC
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Project Manager

Study Record Dates

• First Submitted: June 26, 2012
• First Posted: June 28, 2012
• Study Start: July 1, 2012
• Primary Completion: September 1, 2013
• Study Completion: September 1, 2013
• Last Updated: October 8, 2015

Record last verified: 2015-10

Locations

US (1)