Understanding side effects of combined cancer treatments

Attribution of Toxicities Due to Radiotherapy and Immuno-Biological Therapies - Registry

Observational Centre hospitalier de l'Université de Montréal (CHUM) · NCT04115267

This study is trying to see how often severe side effects happen when people with cancer receive both molecular therapies and radiotherapy together compared to when they get them separately.

Quick facts

Study typeObservational
Enrollment3600 (estimated)
Ages18 Years and up
SexAll
SponsorCentre hospitalier de l'Université de Montréal (CHUM) Academic / other
Drugs / interventionsRadiation, immunotherapy
Locations1 site (Montreal, Quebec)
Trial IDNCT04115267 on ClinicalTrials.gov

What this trial studies

This observational registry aims to gather data from patients receiving both molecular therapies and radiotherapy for cancer. It focuses on collecting information about diagnoses, treatment doses, types of therapies, and reported side effects. By analyzing this data, the study seeks to determine the prevalence of severe side effects when these treatments are used together compared to when they are used separately. Patient-reported outcomes regarding their quality of life and perceived side effects will also be included in the analysis.

Who should consider this trial

Good fit: Ideal candidates include adults over 18 years old with a histological diagnosis of primary cancer who are receiving molecular therapy and are indicated for radiotherapy.

Not a fit: Patients who refuse or are unable to receive radiotherapy will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management of side effects for cancer patients undergoing combined treatments.

How similar studies have performed: While there have been studies on the effects of individual treatments, this registry approach to understanding the combined effects of molecular therapies and radiotherapy is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Consent to be part of the AtTRIBut registry
* Prior histological diagnosis of primary cancer.
* If the patient has metastatic disease, there must be radiological or pathological evidence of metastasis
* Age\> 18 years
* Receiving a molecular therapy
* Indicated to receive radiotherapy
* Radiation therapy can be administered using 3D conventional, IMRT or SBRT techniques.

Exclusion Criteria:

• Refusal or inability to receive radiotherapy

Where this trial is running

Montreal, Quebec

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions CancerRadiotherapy Side EffectCombined effectRegistrySide effectsPatient reported outcome
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.