About Bolder Science

Our mission is to provide healthcare professionals with unbiased clinical research information, easily.

Currently, you can access the following clinical trials being conducted worldwide:

378040 studies
220 countries
Clinical trial information and results are updated daily from ClinicalTrials.gov. The latest data update was conducted on 06/14/2021.
This website is for US healthcare professionals

Log In to Bolder Science


Don't have an account? Sign Up

Please enter your email address.

You will receive a link to create a new password via email.

Log In

Create an Account

(optional) ?

Welcome, !

Please complete the following 4 questions to ensure you receive the information that best suits your needs.

Clinical Trials of Interest

When I’m looking for information on clinical trials, I usually am interested in...

finding clinical trials in which to enroll my patients

Rarely Often

finding newly launched clinical trials (for all phases)

Rarely Often

updates on status changes for clinical trials

Rarely Often

pipeline molecules

Rarely Often

Drug Interventions

Enter up to 3 drug interventions you are currently interested in:

Clinical trial information and results are updated daily from ClinicalTrials.gov. The latest data update was conducted on 06/14/2021.

Image Guided Surgery in Sinonasal Inverted Papilloma

Clinicaltrials.gov identifier NCT03925285

Recruitment Status Active, not recruiting

First Posted April 24, 2019

Last update posted May 3, 2021

Study Description

Brief summary:

In sinonasal inverted papilloma (SNIP) it is very challenging to discriminate between tumor and surrounding tissue. Local recurrence is a frequent phenomenon as it occurs in 16.5% of the cases. There is need for an instrument that is able to guide the surgeon in removing all tumor tissue, whereas resection of healthy tissue is minimalized. Molecular fluorescence guided surgery enables the visualization of targeted tumor-specific biomarkers by using fluorescence, thereby enhancing the contrast between normal mucosa and tumor tissue. The objective of this feasibility study is to determine if the intravenously administered conjugate bevacizumab-IRDye800CW accumulates more in SNIP than in normal sinonasal epithelium.

  • Condition or Disease:Inverted Papilloma
    Molecular Fluorescence Imaging
  • Intervention/Treatment: Drug: Bevacizumab-800CW
  • Phase: Phase 1
Detailed Description

Rationale: During surgical resection, it is very challenging to discriminate between sinonasal inverted papilloma (SNIP) and surrounding tissue, as SNIP is associated with inducement of granulomatous inflammation of the environment. As a result, the surgeon has to perform a thorough resection in order to remove the complete inverted papilloma, which is associated with substantial morbidity. Clearly, there is need for an instrument that is able to guide the surgeon to discriminate between SNIP and surrounding tissue. Molecular imaging techniques using targeted optical contrast agents is a promising technique to accommodate this need. Vascular Endothelial Growth Factor (VEGF) is overexpressed in SNIP compared to normal epithelium of the sinonasal area and has been used effectively in molecular imaging. Objectives: The main objective is to study if the conjugate bevacizumab-IRDye800CW accumulates more in sinonasal inverted papilloma than in normal sinonasal mucosa. Study design: The current study is a non-randomized, non-blinded, prospective, single center, pilot dose-escalation study. A minimum of five and a maximum of eight patients with SNIP will be included. Five patients will be administered with 10 mg bevacizumab-IRDye800CW. An interim analysis is performed after inclusion of the first three patients to determine if a tumor-to-background ratio (TBR) of ≥2 is obtained by either intraoperative fluorescence in vivo measurements or by ex vivo back-table fluorescence imaging. If a TBR of ≥2 is found, inclusion is continued to five patients. If not, the dose is adjusted to 25 mg. Again, a similar interim analysis is performed after inclusion of the first three patients to determine the TBR. Study population: All included patients will meet the in- and exclusion criteria and have a biopsy confirmed diagnosis of primary or recurrent sinonasal inverted papilloma and are scheduled to undergo surgical resection. Patient related study procedures: Patients will - after written informed consent - receive an intravenous injection of the fluorescent tracer. The dose will be either 10 mg or 25 mg. Two to four days later, the peroperative fluorescence imaging and multidiameter single fiber reflectance and single fiber fluorescence (MDSFR/SFF) spectroscopy will be performed of the tumor and woundbed. Main study parameters/endpoints are macroscopic fluorescent signal levels, tumor to background ratio (TBR) and tracer distribution observed by fluorescence imaging and quantification of the fluorescent signal observed by means of MDSFR/SFF spectroscopy. Results of fluorescence imaging and spectroscopy will be correlated with standard histopathological assessment (i.e. hematoxylin and eosin staining) and VEGF immunohistochemistry. Burden: Time investment: Patients need to visit the UMCG two to four days before their planned surgery which will take approximately two hours. Extra procedures: 1) Intravenous administration of bevacizumab-IRDye800CW. 2)The estimated time for taking fluorescence images and MDSFR/SFF spectroscopy measurements is approximately 15 minutes, which will result in prolongation of general anesthesia with 15 minutes. 3) Prior to surgical resection, the surgeon takes biopsies of fluorescent and non-fluorescent areas, or areas of inverted papilloma and normal mucosal lining of sinonasal cavities involved as identified by the surgeon when intraoperative fluorescent signal is not detected. 4) Immediately after resection of the inverted papilloma, biopsies will be taken from areas in the wound bed showing high fluorescent signal. Risks: risks to study participants are mainly related to the, already present, risks of the surgical procedure and to the administration of the tracer in increasing dosages. A data safety monitoring board (DSMB) will not be installed as in more than two hundred patients receiving bevacizumab-IRDye800CW, no (serious) adverse events were observed. Benefit: Patients will have no benefit from this study directly. Surgery will be planned as usual. During surgery, no decisions will be made based on the fluorescence imaging.

Study Design
  • Study Type: Interventional
  • Actual Enrollment: 6 participants
  • Intervention Model: Single Group Assignment
  • Intervention Model Description: Patients are administered with bevacizumab-800CW. 2-4 days later, fluorescence imaging will be performed peroperatively
  • Masking: None (Open Label) ()
  • Primary Purpose: Diagnostic
  • Official Title: Image Guided Surgery in Sinonasal Inverted Papilloma by Targeting Vascular Endothelial Growth Factor
  • Actual Study Start Date: May 2019
  • Estimated Primary Completion Date: July 2021
  • Estimated Study Completion Date: January 2022
Arms and interventions
Arm Intervention/treatment
Experimental: IV fluorescent tracer bevacizumab-800CW
Patients will be administered with 10 or 25 bevacizumab-800CW.
Drug: Bevacizumab-800CW
Two to four days prior to surgery bevacizumab-800CW will be administered intravenously
Outcome Measures
  • Primary Outcome Measures: 1. Tumor-to-background ratio of mean fluorescence intensity [ Time Frame: Up to day 4 ]
  • Secondary Outcome Measures: 1. Histopathologic assessment (H&E staining) of surgical specimen [ Time Frame: Approximately two weeks ]
    Fluorescence signal will be correlated to histology of tissue (inverted papilloma, inflammation, malignant tumor, healthy tissue).
  • 2. VEGF immunohistochemistry of surgical specimen [ Time Frame: Approximately two weeks ]
    VEGF immunohistochemistry to correlate fluorescence signal with VEGF quantities
Eligibility Criteria
  • Ages Eligible for Study: 18 Years and older (Adult, Older Adult)
  • Sexes Eligible for Study: All
  • Accepts Healthy Volunteers: No

Inclusion Criteria:

- Biopsy confirmed diagnosis of SNIP and scheduled to undergo surgical resection;

- Age ≥ 18 years;

- Written informed consent;

- Mentally competent person that is able and willing to comply with study procedures.

Exclusion Criteria:

- Medical or psychiatric conditions that compromise the patient's ability to give
informed consent;

- Concurrent uncontrolled medical conditions;

- Received an investigational drug within 30 days prior to the dose of

- Tumors at sites of which the surgeon would assess that in vivo imaging would not be

- History of myocardial infarction, cerebrovascular accident, uncontrolled cardiac heart
failure, significant liver disease or unstable angina within 6 months prior to

- Inadequately controlled hypertension with or without current antihypertensive

- History of infusion reactions to bevacizumab or other monoclonal antibody therapies;

- Pregnant or lactating women. Documentation of a negative pregnancy test must be
available for women of childbearing potential. Woman of childbearing potential are
premenopausal women with intact reproductive organs and women less than two years
after menopause;

- Lab values that in the opinion of the primary surgeon would prevent surgical

- Life expectancy < 12 weeks;

Contacts and Locations

University Medical Center Groningen

Sponsors and Collaborators

University Medical Center Groningen

More Information
  • Responsible Party: University Medical Center Groningen
  • ClinicalTrials.gov Identifier: NCT03925285 History of Changes
  • Other Study ID Numbers: NL66969.042.18
  • First Posted: April 24, 2019 Key Record Dates
  • Last Update Posted: May 3, 2021
  • Last Verified: April 2021
  • Individual Participant
    Data (IPD) Sharing
  • Plan to Share IPD: No
  • Studies a U.S. FDA-regulated Drug Product: No
  • Studies a U.S. FDA-regulated Device Product: No
  • Additional relevant MeSH terms: Papilloma Papilloma, Inverted