ONLOOP Trial: Evaluating a New Surveillance and Support System for Survivors of Childhood Cancer in Ontario
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: ONLOOP program.
- Who it may be relevant to
- Registry conditions: Survivorship, Cancer, Heart Diseases, Secondary Cancer. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Overview
The treatments that aim to cure cancer in children can lead to "late effects" such as second cancers and heart disease. Screening tests can help find late effects, but most adult survivors of childhood cancer do not complete these tests. These survivors are at risk for harm that can be prevented. The investigators have developed a program called ONLOOP to remind survivors in Ontario, Canada to get the screening tests they need. ONLOOP reminds survivors who are at higher risk for heart disease, breast cancer, and/or colorectal cancer to complete their echocardiograms, mammograms and breast MRIs, and/or colonoscopies. The goal of this clinical trial is to find out how well ONLOOP helps adult survivors of childhood cancer complete their screening tests. The investigators also want to see if it could be turned into a long-term program in Ontario. Eligible survivors will be randomly assigned to either receive intervention materials or continue with usual care for 13 months before receiving intervention materials. The intervention includes usual care plus these ONLOOP materials: 1. Study invitation letter and invitation reminder 2. Those who sign up for ONLOOP will receive personalized health information and a screening reminder. Survivors will receive information about: 1. their cancer treatment 2. their risk(s) for late effects 3. the screening tests they should do 3. Participants have the option to provide their family doctor's or nurse practitioner's contact information. For those who consent, the study team will send their family doctor or nurse practitioner a letter with details about their cancer diagnosis and treatment. The letter will also remind them to talk to their patient about their health and screening test(s) needed.
Interventions
- Behavioral ONLOOP program
Participants will receive ONLOOP program intervention materials: a study invitation letter, personalized health information, and a reminder to complete their guideline-recommended surveillance test(s)
Primary outcome measures
- Completion of guideline-recommended surveillance tests [Time frame: 12 months]
Secondary outcome measures (5)
- Completion of guideline-recommended surveillance tests [Time frame: 24 months]
- Completion of each type of surveillance test [Time frame: 12 months, 24 months]
- Completion of all guideline-recommended surveillance tests [Time frame: 12 months, 24 months]
- Visits to primary care professionals and cancer specialists [Time frame: 12 months, 24 months]
- Use of other healthcare services [Time frame: 12 months, 24 months]
Eligibility criteria
Inclusion criteria
- Survivors of childhood cancer who are currently aged 18 and older
- Diagnosed with cancer before age 18 between 1986-2017
- At least 5 years from most recent childhood cancer event (latest of primary diagnosis, relapse, or second cancer before age 18)
- Treated at one of Ontario's five specialized childhood cancer programs
- Received radiation and/or anthracycline treatment that increased the survivor's risk of cardiomyopathy, breast cancer, and/or colorectal cancer
- Overdue for guideline-recommended surveillance by ≥6 months (mammogram and breast MRI, colonoscopy, and/or echocardiogram)
Exclusion criteria
- Was not diagnosed or was not fully treated at one of Ontario's five pediatric cancer centres
- Developed a second cancer or relapse of their primary cancer after age 18
- Not currently living in Ontario or address deemed ineligible by Ontario Health
- Opted out of a similar Ontario Health program (eg, the Ontario Breast Screening Program)
- Previously opted out of receiving invitations for Ontario Health research studies or similar communications
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Single blind
- Primary purpose
- Screening
Study locations
Center list to be confirmed — check the primary protocol.
Publications
- Shuldiner J, Lam E, Shah N, Grimshaw J, Desveaux L, Heisey R, Taccone MS, Taljaard M, Thavorn K, Hodgson D, Gupta S, Lofters A, Ivers N, Nathan PC. Protocol for the ONLOOP trial: pragmatic randomized trial evaluating a province-wide system of personalized reminders for evidence-based surveillance tests in adult survivors of childhood cancer in Ontario. Implement Sci. 2024 Feb 23;19(1):19. doi: 10. PMID 38395903
Identifiers
NCT: NCT05832138 · 4152