NCT04357158

Brief Summary

In the past decade, the demand for colonoscopy procedures has increased significantly since the introduction of population-based colorectal cancer (CRC) screening in many western countries. Post-polypectomy surveillance will increase the number of colonoscopy procedures conducted each year even further. The invasive nature of colonoscopy and the associated health-care costs warrant the development of a new non-invasive test to reduce the number of unnecessary colonoscopies. These days, many countries use a non-invasive fecal test for CRC screening which is easy to perform at home, but test characteristics such as sensitivity and specificity are suboptimal. Multiple studies have already shown that volatile organic compound (VOC) analysis has a high diagnostic accuracy for CRC and Advanced Adenomas. An additional VOC analysis, for example through breath testing, in patients with a positive fecal immunochemical test (FIT) may reduce the number of unnecessary colonoscopies. The aim of this study is to validate the diagnostic accuracy of the AeonoseTM to distinguish patients with CRC from healthy controls, and to assess reproducibility of test results.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
750

participants targeted

Target at P75+ for not_applicable colorectal-cancer

Timeline
Completed

Started May 2020

Geographic Reach
1 country

1 active site

Status
completed

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

April 20, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

April 22, 2020

Completed
1 month until next milestone

Study Start

First participant enrolled

May 25, 2020

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 5, 2022

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 5, 2022

Completed
Last Updated

November 21, 2024

Status Verified

September 1, 2021

Enrollment Period

1.6 years

First QC Date

April 20, 2020

Last Update Submit

November 18, 2024

Conditions

Keywords

Volatile organic compoundsVOCColorectal cancerAdvanced adenomaBreath testElectronic noseeNoseAeonose

Outcome Measures

Primary Outcomes (1)

  • Diagnostic accuracy in distinguishing colorectal carcinoma from healthy controls

    The diagnostic accuracy, in terms of sensitivity and specificity, of the AeonoseTM in distinguishing between patients with and without CRC.

    12 months

Secondary Outcomes (3)

  • Diagnostic accuracy in distinguishing advanced adenoma from healthy controls

    12 months

  • Reproducibility

    12 months

  • Acceptance rate

    12 months

Study Arms (1)

Patients referred for colonoscopy

OTHER
Device: AeonoseTM

Interventions

AeonoseTMDEVICE

All participants will be asked to breathe into an electronic nose (eNose, the AeonoseTM, The eNose Company, Zutphen, the Netherlands) for 5 minutes during the pre-colonoscopy intake and just prior to the procedure to assess reproducibility (with \>2 weeks in between).

Patients referred for colonoscopy

Eligibility Criteria

Age50 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult patients between the ages of 55 and 75 years referred for a colonoscopy procedure after a positive FIT test, according to the population based CRC screening program in the Netherlands

You may not qualify if:

  • Prior surgical resection of any portion of the colon
  • History of any type of malignancy, not including squamous cell carcinoma (SCC) and basal cell carcinoma (BCC)
  • Current active colitis or history of polyposis syndrome

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Radboud university medical center

Nijmegen, Gelderland, 6525GA, Netherlands

Location

Related Publications (2)

  • van Riswijk MLM, van Keulen KE, Tan ACITL, Schrauwen RWM, de Vos Tot Nederveen Cappel WH, Siersema PD; eNose CRC study group. Research Communication: Breath Testing for Colorectal Cancer Detection in Patients With a Positive Fecal Immunochemical Test: A Multicentre Prospective Cross-Sectional Study With External Validation. Aliment Pharmacol Ther. 2025 Jul;62(2):208-213. doi: 10.1111/apt.70207. Epub 2025 Jun 3.

  • van Riswijk MLM, van Tintelen BFM, Lucas RH, van der Palen J, Siersema PD. Overcoming methodological barriers in electronic nose clinical studies, a simulation data-based approach. J Breath Res. 2025 May 9;19(3). doi: 10.1088/1752-7163/add291.

MeSH Terms

Conditions

Colorectal NeoplasmsColonic Polyps

Condition Hierarchy (Ancestors)

Intestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesColonic DiseasesIntestinal DiseasesRectal DiseasesIntestinal PolypsPolypsPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Officials

  • Peter D Siersema, MD, PhD

    Radboud University Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Model Details: This is a multicenter prospective cohort study in participants eligible for colonoscopy with suspicion for (pre)malignant lesions of the colon
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 20, 2020

First Posted

April 22, 2020

Study Start

May 25, 2020

Primary Completion

January 5, 2022

Study Completion

July 5, 2022

Last Updated

November 21, 2024

Record last verified: 2021-09

Locations