Clinical Trials Logo

Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03363061
Other study ID # Colon Registry
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date December 8, 2017
Est. completion date November 30, 2028

Study information

Verified date January 2022
Source Chinese University of Hong Kong
Contact Moe Htet Kyaw, MBBS
Phone 35053476
Email moehkyaw@cuhk.edu.hk
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The use of antithrombotics (antiplatelet agents and anticoagulants) is increasing with an aging global population.Management of antithrombotics in patients undergoing invasive procedures including gastrointestinal endoscopy remains a challenge. Management approach includes taking a precarious balance between the risk of thromboembolism after interruption of antithrombotics and risk of bleeding with the continuation of antithrombotics. Colonoscopy remains one of the commonest endoscopic procedures performed. The optimal management strategy of different antithrombotics during colonoscopy remains unclear.


Description:

The use of antithrombotics (antiplatelet agents and anticoagulants) is increasing with an aging global population. Cardiovascular disease is a leading cause of death worldwide. Clinical Practice Research Datalink (CPRD) GOLD database suggests that over 915 000 people in the UK have suffered a myocardial infarction and over 1.3 million are living with angina in 2013. Two percent of people in developed countries are on long-term anticoagulation and up to 10% in the elderly population. Management of antithrombotics in patients undergoing invasive procedures including gastrointestinal endoscopy remains a challenge. Management approach includes taking a precarious balance between the risk of thromboembolism after interruption of antithrombotics and risk of bleeding with the continuation of antithrombotics. The availability of new antithrombotic agents adds to the complexity of antithrombotic management during endoscopy. Warfarin has been the only oral anticoagulant available until the introduction of direct oral anticoagulants (DOACs). Newer antiplatelet agents (prasugrel and ticagrelor, vorapaxar) are becoming more commonly used for the treatment of the acute coronary syndrome. There remain gaps in the management approach of patients receiving antithrombotics and requiring endoscopy. It is still uncertain of the actual bleeding risk associated with antithrombotic use during endoscopy. Colonoscopy remains one of the commonest endoscopic procedures performed. It is the gold standard for direct evaluation of the colon for patients with the suspected colonic disease. It is also used as a screening test for prevention of colorectal cancer by colonoscopic polypectomy of precancerous polyps.The optimal management strategy of different antithrombotics during colonoscopy remains unclear.


Recruitment information / eligibility

Status Recruiting
Enrollment 6000
Est. completion date November 30, 2028
Est. primary completion date November 30, 2027
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Patients must be over 18 years of age - Patients undergoing elective colonoscopy for any indication, who are receiving antithrombotics - Informed consent is obtained Exclusion Criteria: - Patients under 18 years of age - Inability to give informed consent

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
Hong Kong Prince of Wales Hospital Hong Kong

Sponsors (2)

Lead Sponsor Collaborator
Chinese University of Hong Kong Beijing Friendship Hospital

Country where clinical trial is conducted

Hong Kong, 

Outcome

Type Measure Description Time frame Safety issue
Primary Delayed post polypectomy bleeding Delayed post polypectomy bleeding is defined as blood per rectum occurring after colonoscope has been retracted from the anus to 30 days after the procedure requiring hospitalization or treatment. Within 30 days
Secondary Immediate post polypectomy bleeding Immediate post polypectomy bleeding is defined as bleeding at the time of colonoscopy after polypectomy and requiring endoscopic intervention at the same colonoscopy. During Colonoscopy
Secondary Serious cardiovascular event Serious cardiovascular event is defined as nonfatal myocardial infarction, nonfatal stroke, or death from a vascular cause as defined by Anti-Platelet Trialists Collaboration criteria within 6 months. Within 6 months.
See also
  Status Clinical Trial Phase
Completed NCT04101097 - Training and Validation of Models of Factors to Predict Inadequate Bowel Preparation Colonoscopy
Completed NCT03247595 - Testing How Well Magnesium Citrate Capsules Work as Preparation for a Colonoscopy N/A
Completed NCT04214301 - An Open-Label Preference Evaluation of BLI800 Phase 4
Withdrawn NCT05754255 - Comparison of High-flow Oxygen With or Without Nasal Positive Airway Pressure (PAP) During Propofol Sedation for Colonoscopy in an Ambulatory Surgical Center N/A
Recruiting NCT02484105 - Comforting Conversation During Colonoscopy: A Trial on Patient Satisfaction Phase 4
Active, not recruiting NCT02264249 - Residual Gastric Volume in Same Day Versus Split Dose and Evening Before Bowel Preparation N/A
Terminated NCT01978509 - The Affect of Low-Volume Bowel Preparation for Hospitalized Patients Colonoscopies N/A
Completed NCT01964417 - The Comparative Study Between Bowel Preparation Method Phase 3
Recruiting NCT01685970 - Comparison of Same-day 2 Sachets Picosulfate Versus High Volume PEG for Afternoon Colonoscopy Phase 3
Completed NCT01518790 - Short Course, Single-dose PEG 3350 for Colonoscopy Prep in Children N/A
Recruiting NCT00748293 - Achievement of Better Examinee Compliance on Colon Cleansing Using Commercialized Low-Residue Diet N/A
Completed NCT00779649 - MoviPrep® Versus HalfLytely®, Low-VolUme PEG Solutions for Colon Cleansing: An InvesTigator-blindEd, Randomized, Trial Phase 4
Completed NCT00671177 - Clinical Evaluation of Water Immersion Colonoscopy Insertion Technique N/A
Completed NCT00380497 - Pico-Salax Versus Poly-Ethylene Glycol for Bowel Cleanout Before Colonoscopy in Children Phase 4
Recruiting NCT00160823 - Impact of a Self-Administered Information Leaflet on Adequacy of Colonic Cleansing for in-Hospital Patients Phase 3
Completed NCT00314418 - Patient Position and Impact on Colonoscopy Time N/A
Completed NCT00390598 - PEG Solution (Laxabon®) 4L Versus Senna Glycoside (Pursennid® Ex-Lax) 36mg and PEG Solution (Laxabon®) 2L for Large Bowel Cleansing Prior to Colonoscopy Phase 2/Phase 3
Completed NCT00427089 - Comparison of 2L NRL994 With NaP Preparation in Colon Cleansing Prior to Colonoscopies for Colon Tumor Screening Phase 3
Completed NCT00209573 - A Study of AQUAVAN® Injection Versus Midazolam HCl for Sedation in Patients Undergoing Elective Colonoscopy Phase 3
Completed NCT05823350 - The Effect of Abdominal Massage on Pain and Distention After Colonoscopy N/A