- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05844514
COlorectal BReath Analysis (COBRA2)
The COlorectal BReath Analysis (COBRA2) Study: Non-invasive Testing to Detect Colorectal Cancer
Colorectal cancer (CRC) is the second most common cause of cancer death in the United Kingdom, with approximately 17,000 deaths per year. The five-year survival rate from CRC is only 10% when discovered at a late stage, but exceeds 90% if diagnosed early. Symptoms related to CRC can be non-specific, therefore the decision to refer for a colonoscopy can be challenging.
There is a clear need to improve earlier detection of CRC so that patients with CRC can be identified earlier and faster, enabling them to start treatment more quickly.
The study team is developing a non-invasive breath test that detects small molecules called volatile organic compounds (VOCs) that are specific to CRC. For patients with non-specific symptoms, this test would help GPs to identify those patients that may have underlying CRC, who would benefit from referral for specialised CRC tests.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The COBRA1 study initially assessed VOCs in CRC and identified a list of 14 VOC biomarkers for CRC and provided a detection model with an area under the receiver operating characteristic curve of 0.91, sensitivity of 83% and specificity of 88% in symptomatic patients.
COBRA2 therefore has the following aims:
(i) validate VOC biomarkers for CRC identified in COBRA1; (ii) further discovery of VOC biomarkers for CRC using an improved methodology and technology; (iii) refine the detection model with internal validation; (iv) exploratory comparison between a breath test and faecal immunochemical test (FIT); and assessment of the performance of combining both tests to detect CRC.
Methods: COBRA2 is be a prospective, multicentre validation study. The study team are recruiting the following patients:
- Control group: symptomatic patients who are attending for a planned colonoscopy referred under the two-week wait pathway. Any patients who is found to have histology proven CRC on colonoscopy will be analysed as part of the CRC group.
- CRC group: patients who are scheduled to undergo elective resection of histologically confirmed colorectal adenocarcinoma.
Target recruitment is 720 patients (470 controls, 250 CRC), aiming for 576 patients (376 controls, 200 CRC) with reliable and complete data. Participants are required to maintain a clear fluid diet for a minimum of 4 hours prior to sampling and should not have received bowel preparation. Participants will be asked to provide breath samples by exhaling into single-use breath collection bags and breath will be transferred using a precision pump onto thermal desorption (TD) tubes. Breath samples will be analysed with gas chromatography-mass spectrometry in accordance with existing quality control processes.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Mr Michael G Fadel, BSc MBBS MRCS
- Phone Number: +44 (0)20 7594 3396
- Email: m.fadel@imperial.ac.uk
Study Locations
-
-
-
London, United Kingdom
- Recruiting
- West Middlesex University Hospital
-
Contact:
- Mr Christos Kontovounisios
-
London, United Kingdom
- Recruiting
- St Mary's Hospital
-
Contact:
- Professor George B Hanna
-
London, United Kingdom
- Recruiting
- Chelsea And Westminster Hospital
-
Contact:
- Mr Christos Kontovounisios
-
London, United Kingdom
- Active, not recruiting
- Royal Marsden Hospital
-
London, United Kingdom
- Active, not recruiting
- St Mark's Hospital
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients aged ≥ 18 years who are seen in secondary or tertiary care with symptoms of suspected CRC referred for a colonoscopy.
- CRC group: patients with histologically confirmed colorectal adenocarcinoma (stages I-IV) who are treatment naïve.
Exclusion Criteria - patients with any of the following will not be eligible for inclusion:
- Previous colorectal resection
- Received neoadjuvant chemotherapy/radiotherapy/immunotherapy for CRC
- History of another cancer within five years
- Active infection, on immunosuppressive medication or antibiotic therapy within the last eight weeks
- Unable or unwilling to provide informed written consent.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Control group - 470 patients
Symptomatic patients who are attending for a planned colonoscopy referred under the two-week wait pathway.
Any patients who is found to have histology proven CRC on colonoscopy will be analysed as part of the CRC group.
|
Patients must be fasted for a minimum of four hours prior to breath sample collection.
For patients undergoing colonoscopy or surgery, breath samples must be obtained prior to patients receiving bowel preparation in either outpatient clinic or pre-assessment clinic.
|
CRC group - 250 patients
Patients who are scheduled to undergo elective resection of histologically confirmed colorectal adenocarcinoma.
|
Patients must be fasted for a minimum of four hours prior to breath sample collection.
For patients undergoing colonoscopy or surgery, breath samples must be obtained prior to patients receiving bowel preparation in either outpatient clinic or pre-assessment clinic.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Validation and further discovery of VOC biomarkers for CRC.
Time Frame: 24 months
|
GC-MS will be used to confirm the presence of certain CRC-associated VOCs in order to refine the detection model.
|
24 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Exploratory comparison between the breath test and FIT.
Time Frame: 24 months
|
Assessment of the performance of combining both the breath test and FIT to detect CRC.
|
24 months
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Professor George B Hanna, PhD FRCS, Imperial College London
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 17SM3783 - SA 04
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Colorectal Cancer
-
University of California, San FranciscoCompletedStage IV Colorectal Cancer AJCC v8 | Stage IVA Colorectal Cancer AJCC v8 | Stage IVB Colorectal Cancer AJCC v8 | Stage IVC Colorectal Cancer AJCC v8 | Stage III Colorectal Cancer AJCC v8 | Stage IIIA Colorectal Cancer AJCC v8 | Stage IIIB Colorectal Cancer AJCC v8 | Stage IIIC Colorectal Cancer AJCC... and other conditionsUnited States
-
Fred Hutchinson Cancer CenterNational Cancer Institute (NCI)TerminatedRectal Cancer | Colon Cancer | Cancer Survivor | Colorectal Adenocarcinoma | Stage III Colorectal Cancer AJCC v8 | Stage IIIA Colorectal Cancer AJCC v8 | Stage IIIB Colorectal Cancer AJCC v8 | Stage IIIC Colorectal Cancer AJCC v8 | Stage I Colorectal Cancer AJCC v8 | Stage II Colorectal Cancer AJCC v8 | Stage... and other conditionsUnited States
-
University of Southern CaliforniaNational Cancer Institute (NCI)TerminatedStage IV Colorectal Cancer AJCC v8 | Stage IVA Colorectal Cancer AJCC v8 | Stage IVB Colorectal Cancer AJCC v8 | Stage IVC Colorectal Cancer AJCC v8 | Stage III Colorectal Cancer AJCC v8 | Stage IIIA Colorectal Cancer AJCC v8 | Stage IIIB Colorectal Cancer AJCC v8 | Stage IIIC Colorectal Cancer AJCC... and other conditionsUnited States
-
M.D. Anderson Cancer CenterNational Cancer Institute (NCI)Active, not recruitingStage IV Colorectal Cancer AJCC v8 | Stage IVA Colorectal Cancer AJCC v8 | Stage IVB Colorectal Cancer AJCC v8 | Stage IVC Colorectal Cancer AJCC v8 | Stage III Colorectal Cancer AJCC v8 | Stage IIIA Colorectal Cancer AJCC v8 | Stage IIIB Colorectal Cancer AJCC v8 | Stage IIIC Colorectal Cancer AJCC... and other conditionsUnited States
-
M.D. Anderson Cancer CenterRecruitingColorectal Adenocarcinoma | Stage IVA Colorectal Cancer AJCC v8 | Stage IVB Colorectal Cancer AJCC v8 | Stage IVC Colorectal Cancer AJCC v8 | Stage III Colorectal Cancer AJCC v8 | Stage IIIA Colorectal Cancer AJCC v8 | Stage IIIB Colorectal Cancer AJCC v8 | Stage IIIC Colorectal Cancer AJCC v8 | Stage... and other conditionsUnited States
-
Wake Forest University Health SciencesNational Cancer Institute (NCI)CompletedCancer Survivor | Stage III Colorectal Cancer AJCC v8 | Stage IIIA Colorectal Cancer AJCC v8 | Stage IIIB Colorectal Cancer AJCC v8 | Stage IIIC Colorectal Cancer AJCC v8 | Stage I Colorectal Cancer AJCC v8 | Stage II Colorectal Cancer AJCC v8 | Stage IIA Colorectal Cancer AJCC v8 | Stage IIB Colorectal... and other conditionsUnited States
-
Sidney Kimmel Cancer Center at Thomas Jefferson...United States Department of DefenseActive, not recruitingColorectal Adenoma | Stage III Colorectal Cancer AJCC v8 | Stage IIIA Colorectal Cancer AJCC v8 | Stage IIIB Colorectal Cancer AJCC v8 | Stage IIIC Colorectal Cancer AJCC v8 | Stage 0 Colorectal Cancer AJCC v8 | Stage I Colorectal Cancer AJCC v8 | Stage II Colorectal Cancer AJCC v8 | Stage IIA Colorectal... and other conditionsUnited States
-
City of Hope Medical CenterRecruitingColorectal Neoplasms | Colorectal Cancer | Colorectal Adenocarcinoma | Colorectal Cancer Stage II | Colorectal Cancer Stage III | Colorectal Cancer Stage IV | Colorectal Neoplasms Malignant | Colorectal Cancer Stage IUnited States, Japan, Italy, Spain
-
University of Roma La SapienzaCompletedColorectal Cancer Stage II | Colorectal Cancer Stage III | Colorectal Cancer Stage IV | Colorectal Cancer Stage 0 | Colorectal Cancer Stage IItaly
-
University of Southern CaliforniaNational Cancer Institute (NCI); AmgenTerminatedStage IV Colorectal Cancer AJCC v7 | Stage IVA Colorectal Cancer AJCC v7 | Stage IVB Colorectal Cancer AJCC v7 | Colorectal Adenocarcinoma | RAS Wild Type | Stage III Colorectal Cancer AJCC v7 | Stage IIIA Colorectal Cancer AJCC v7 | Stage IIIB Colorectal Cancer AJCC v7 | Stage IIIC Colorectal Cancer...United States
Clinical Trials on Breath test
-
Yonsei UniversityUnknownIrritable Bowel SyndromeKorea, Republic of
-
Brain-Gut Research GroupNational University, Singapore; New Jersey Medical SchoolCompletedIrritable Bowel Syndrome | Functional Gastrointestinal DisordersSwitzerland
-
Mebo Research, Inc.Aurametrix; Menssana Research, Inc.CompletedNutritional and Metabolic DiseasesUnited States, United Kingdom
-
Shandong UniversityJinan Central Hospital; Weihai Municipal Hospital; Weifang People's Hospital; Qilu... and other collaboratorsNot yet recruiting
-
The Cleveland ClinicAbbVieRecruitingCrohn Disease | Ulcerative Colitis | IBDUnited States
-
NHS LothianCompletedCOVID-19 | Respiratory DiseaseUnited Kingdom
-
Imperial College LondonUniversity College London Hospitals; Northern Care Alliance NHS Foundation... and other collaboratorsRecruitingBarrett Esophagus | Oesophageal Cancer | Barretts Esophagus With DysplasiaUnited Kingdom
-
Meir Medical CenterUnknownMetabolic State, Breath Analysis, NA-Nose
-
QOL Medical, LLCCompletedCongenital Sucrase-Isomaltase DeficiencyUnited States