NCT03877601

Brief Summary

To improve detection of esophageal (pre)malignant lesions during surveillance endoscopy of patients at risk of developing malignancies, for example in Barrett's Esophagus (BE), there is a need for better endoscopic visualization and the ability for targeted biopsies. Optical molecular imaging of neoplasia associated biomarkers could form a promising technique to accommodate this need. It is known that the biomarker Vascular Endothelial Growth Factor (VEGF) is overexpressed in dysplastic and neoplastic areas in BE segments versus normal tissue and has proven to be a valid target for molecular imaging. The University Medical Center Groningen (UMCG) developed a fluorescent tracer by labeling the VEGF-targeting humanized monoclonal antibody bevacizumab, currently used in anti-cancer therapy, with the fluorescent dye IRDye800CW. The phase I study, named VICE, completed within the UMCG, showed that synchronal use of VEGFA-guided near-infrared fluorescence molecular endoscopy (NIR-FME) and high-definition white light endoscopy (HD-WLE), following topical or systemic tracer administration, could be practiced to recognize dysplastic and early EAC lesions in patients with BE. Furthermore, early lesion detection was improved by \~33% using the topically applied tracer approach compared with HD-WL/NBI endoscopy. With this phase 2 intervention study the investigators aim to statistically confirm previous pilot (Phase I) clinical data showing that the combination of HD-WLE and FME using labelled bevacizumab improves early EC detection over the current clinical standard.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Jul 2019

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 27, 2019

Completed
16 days until next milestone

First Posted

Study publicly available on registry

March 15, 2019

Completed
5 months until next milestone

Study Start

First participant enrolled

July 29, 2019

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2021

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2021

Completed
Last Updated

November 4, 2020

Status Verified

November 1, 2020

Enrollment Period

2.1 years

First QC Date

February 27, 2019

Last Update Submit

November 3, 2020

Conditions

Keywords

FluorescenceEndoscopyBevacizumab-800CW

Outcome Measures

Primary Outcomes (1)

  • Fluorescence signal in patients with Barrett's Esophagus

    Evaluating the performance of FME with topical administration of Bevacizumab-800CW for detection of neoplasia in BE patients compared to HD-WLE to make an estimation of the diagnostic accuracy in terms of sensitivity and specificity in order to make a power size calculation for the Phase III trial.

    During the endoscopic procedure

Secondary Outcomes (3)

  • Ex vivo fluorescence singals

    2 years

  • Number of participants with adverse events (AE), serious adverse events (SAE) and suspected unexpected serious adverse reactions (SUSAR).

    Up to 1 week after administration of tracer

  • Interrogate potential new EC biomarkers

    2 years

Study Arms (1)

Topical administration of bevacizumab-800CW

EXPERIMENTAL

The tracer will be topically administered 5 minutes prior to the fluorescence endoscopy procedure (with the near infrared fluorescence endoscopy platform).

Drug: Bevacizumab-IRDye800CWDiagnostic Test: Fluorescence endoscopy

Interventions

Topical administration of Bevacizumab-IRDye800CW during the endoscopic procedure.

Topical administration of bevacizumab-800CW
Fluorescence endoscopyDIAGNOSTIC_TEST

Device: Molecular Fluorescence Endoscopy platform A flexible fluorescence fiber-bundle is attached to a fluorescence camera platform to enable the detection of fluorescence signals. The fluorescence fiber-probe is inserted through the standard working channel of the standard clinical endoscope.

Topical administration of bevacizumab-800CW

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Suspicion or diagnosed LGD, HGD or superficial EAC and planned diagnostic and/or therapeutic endoscopy.
  • Age: 18 years or older.
  • Written informed consent.

You may not qualify if:

  • Patients younger than 18 years old
  • Submucosal and invasive EAC; EAC with TNM-classification other than T1.
  • Radiation therapy for esophageal cancer
  • Immunoglobulin allergy
  • Chemotherapy, immunotherapy or surgery 28 days before administration of the tracer
  • Prior Bevacizumab treatment
  • Non-adjustable hypertension
  • Medical or psychiatric conditions that compromise the patient's ability to give informed consent.
  • Pregnancy or breast feeding.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Medical Center Groningen

Groningen, 9713 GZ, Netherlands

RECRUITING

Related Publications (1)

  • Nagengast WB, Hartmans E, Garcia-Allende PB, Peters FTM, Linssen MD, Koch M, Koller M, Tjalma JJJ, Karrenbeld A, Jorritsma-Smit A, Kleibeuker JH, van Dam GM, Ntziachristos V. Near-infrared fluorescence molecular endoscopy detects dysplastic oesophageal lesions using topical and systemic tracer of vascular endothelial growth factor A. Gut. 2019 Jan;68(1):7-10. doi: 10.1136/gutjnl-2017-314953. Epub 2017 Dec 15. No abstract available.

    PMID: 29247063BACKGROUND

MeSH Terms

Conditions

Barrett Esophagus

Condition Hierarchy (Ancestors)

Precancerous ConditionsNeoplasmsEsophageal DiseasesGastrointestinal DiseasesDigestive System Diseases

Study Officials

  • W.B. Nagengast, MD, PhD, PharmD

    University Medical Center Groningen

    PRINCIPAL INVESTIGATOR
  • Vasilis Ntziachristos, Prof. Dr.

    Helmholtz Zentrum München

    PRINCIPAL INVESTIGATOR

Central Study Contacts

W.B. Nagengast, MD, PhD, PharmD

CONTACT

R.Y. Gabriels, MSc, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

February 27, 2019

First Posted

March 15, 2019

Study Start

July 29, 2019

Primary Completion

September 1, 2021

Study Completion

October 1, 2021

Last Updated

November 4, 2020

Record last verified: 2020-11

Data Sharing

IPD Sharing
Will not share

Locations