A Phase 1 interventional study of GI heptapeptide in Barrett's Esophagus, sponsored by University of Michigan. Completed at 1 site in United States. Open to participants aged 18 Years to 100 Years. Per ClinicalTrials.gov, last updated 2015-10-08.
Sponsored by University of Michigan · Phase 1, Interventional, and Diagnostic
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.
316 studies on the registry are indexed under Barrett Esophagus; 62 are open to participants now.
This study's enrollment of 60 is close to the median of 61 across 190 interventional studies indexed under Barrett Esophagus.
Browse Barrett Esophagus studies →University of Michigan is the lead sponsor of 1,503 studies on the registry; 189 are open to participants now.
Of its 167 completed or terminated interventional studies of FDA-regulated products, 132 (79%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Drug: GI heptapeptide
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)
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.
Time frame: 1.5 years
The record gives a start of Jul 2012, a primary completion of Sep 2013 and a completion of Sep 2013. It does not say whether these dates are actual or estimated.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Oct 2015. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.