Effect of an Advanced Notification Letter on Screening Colonoscopy Participation
Participation in Screening Colonoscopy in Response to an Advanced Notification Letter Plus Standard Invitation Versus Standard Invitation Only - a Population-based Randomized Controlled Trial
1 other identifier
interventional
6,800
1 country
1
Brief Summary
Participation in a primary screening colonoscopy programs remains low. Advanced notification letter has been shown to increase participation in colorectal cancer screening with fecal occult blood testing and to be cost effective compared to standard invitation. It is unknown whether advanced notification letter increases participation rate in primary colonoscopy screening program. We hypothesize that an Advance Notification Letter will have significant influence on participation in screening colonoscopy, comparing to standard invitation procedure and will thus result in higher efficiency of the program. This randomized controlled study aims to compare the participation rate in screening colonoscopy in response to advanced notification plus standard invitation letter and standard invitation letter alone. Material and methods: 6800 individuals aged 55-64 years will be drawn from the Population Registry and randomly assigned in a 1:1 ratio to the group invited for screening colonoscopy with advanced notification letter (send two weeks before standard invitation) plus standard invitation (send six weeks before planned screening colonoscopy) or to standard invitation only (send six weeks before planned screening colonoscopy). The sample size was calculated to detect 3% difference in participation rate between the groups (25% vs 28%) with 80% power.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable colorectal-cancer
Started Aug 2014
Shorter than P25 for not_applicable colorectal-cancer
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 11, 2014
CompletedFirst Posted
Study publicly available on registry
July 14, 2014
CompletedStudy Start
First participant enrolled
August 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2015
CompletedJuly 14, 2014
July 1, 2014
4 months
July 11, 2014
July 11, 2014
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Participation rate
A percentage of invitees who undergo the screening colonoscopy. The sample size was calculated to detect 3% difference in participation rate between the groups (25% vs 28%) with 80% power.
three months after receiving invitation
Secondary Outcomes (1)
Response rate
three months after receiving invitation
Other Outcomes (1)
Cost of including Advance Notification Letter
1 year
Study Arms (2)
Implementation of ANL
EXPERIMENTALIntervention: Procedure : Implementation of routine Advanced Notification Letter included in Standard Invitation procedure Advanced Notification Letter will be implemented in invitation procedure and send two weeks before Standard Invitation (Standard Invitation will be send six weeks before planned screening colonoscopy)
No included ANL
ACTIVE COMPARATORIntervention: Behavioral : No included Advanced Notification Letter Sending Standard Invitation six weeks before planned screening colonoscopy
Interventions
Advance Notification Letter will be send two weeks before Standard Invitation for screening colonoscopy
Sending Standard Invitation only six weeks before planned screening colonoscopy
Eligibility Criteria
You may qualify if:
- all individuals aged 55-64 years living in the counties covered with the organized CRC screening program and assigned to invitation to screening colonoscopy in the year 2014 are eligible for the study.
You may not qualify if:
- message from neighbor/family/post office on death of screenee (not updated in Population Registry)
- resident abroad (not updated in Population Registry)
- return of unopened letter of invitation and/or reminder (address unknown)
- diagnosis of CRC before the date of draw (not updated in the National Cancer Registry)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
Warsaw, Mazovian, Poland
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Karolina Janikowska, MD,MSc
The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
- STUDY CHAIR
Jaroslaw Regula, MD, PhD
The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
- STUDY DIRECTOR
Bartlomiej Kocot
The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- SCREENING
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 11, 2014
First Posted
July 14, 2014
Study Start
August 1, 2014
Primary Completion
December 1, 2014
Study Completion
February 1, 2015
Last Updated
July 14, 2014
Record last verified: 2014-07