Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
RECRUITING
1500 participants
OBSERVATIONAL
2017-11-01
2025-10-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
The primary objective is to determine the feasibility of establishing infrastructure to systematically collect clinical data, patient-reported outcomes, and imaging data from daily radiotherapy practice.
Secondary objectives are to provide a control cohort for comparative effectiveness research of investigational interventions through a cmRCT design; compare imaging features with clinical outcomes; understand dose-effect relationships; quantify imaging quality metrics.
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
The basis of this design is a prospective cohort of participants receiving care as usual, who give informed consent for cohort participation.
Participants can furthermore be asked for informed consent to be randomized in future RCTs conducted within the cohort. Participants are informed that they will be offered an experimental intervention if they are randomly selected. They are also informed that they otherwise might serve as controls without being notified and that their data can be used in a trial context. For each participant in the cohort, PROs are captured at baseline and at regular intervals during follow-up. Within this cohort, multiple RCTs can be conducted. The design is especially attractive for clinical research areas with rapid evolution of technology, and for highly desired or expensive interventions.
In the first stage, at entry into the cohort, all potential participants are asked for their informed consent to participate in a cohort study and broad consent to be either randomly selected to be approached for experimental interventions or to serve as control without further notice during participation in the cohort. In a second stage, at the initiation of an RCT within the cohort, informed consent to receive the intervention is then only sought in those randomly selected for the intervention arm. At the third stage, after completion of each RCT, all cohort participants receive aggregate disclosure of trial results.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
COHORT
PROSPECTIVE
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* Receiving radiotherapy or brachytherapy
Exclusion Criteria
18 Years
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Centre hospitalier de l'Université de Montréal (CHUM)
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
London Health Regional Cancer Centre
London, Ontario, Canada
Princess Margaret Cancer Centre
Toronto, Ontario, Canada
Centre de santé et de services sociaux de Laval
Laval, Quebec, Canada
Centre Hospitalier de l'Université de Montréal
Montreal, Quebec, Canada
CHUQ
Québec, Quebec, Canada
Countries
Review the countries where the study has at least one active or historical site.
Central Contacts
Reach out to these primary contacts for questions about participation or study logistics.
Facility Contacts
Find local site contact details for specific facilities participating in the trial.
Karen Eddy
Role: primary
Philip Wong
Role: primary
Marie-Andrée Fortin, MD
Role: primary
Diane Trudel
Role: primary
Sophie Pouliot
Role: primary
References
Explore related publications, articles, or registry entries linked to this study.
Petit C, Delouya G, Taussky D, Barkati M, Lambert C, Beauchemin MC, Clavel S, Mok G, Pare AG, Nguyen TV, Duplan D, Keu KV, Saad F, Juneau D, Menard C. PSMA-PET/CT-Guided Intensification of Radiation Therapy for Prostate Cancer (PSMAgRT): Findings of Detection Rate, Effect on Cancer Management, and Early Toxicity From a Phase 2 Randomized Controlled Trial. Int J Radiat Oncol Biol Phys. 2023 Jul 15;116(4):779-787. doi: 10.1016/j.ijrobp.2022.12.055. Epub 2023 Jan 11.
Belliveau C, Barkati M, Delouya G, Taussky D, Beauchemin MC, Lambert C, Beaulieu L, Beliveau-Nadeau D, Nicolas B, Carrier JF, Vigneault E, Menard C. Focal HDR brachytherapy boost to stereotactic radiotherapy (fBTsRT) for prostate cancer: a phase II randomized controlled trial. Radiat Oncol. 2022 Dec 9;17(1):203. doi: 10.1186/s13014-022-02173-5.
Alley S, Jackson E, Olivie D, Van der Heide UA, Menard C, Kadoury S. Effect of magnetic resonance imaging pre-processing on the performance of model-based prostate tumor probability mapping. Phys Med Biol. 2022 Dec 13;67(24). doi: 10.1088/1361-6560/ac99b4.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
17.032
Identifier Type: -
Identifier Source: org_study_id