Studies genes in tumors that respond unusually well or poorly to cancer treatment
Looks at tumor genetics in cancer patients whose responses to chemotherapy were exceptional.
Plain-language title generated from the registry record
Registry title: Genomic Investigation of Unusual Responders
Key facts
- Where
- Toronto, CanadaSee the site
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults with cancer who had an unusually good or unusually poor response to treatment. Enough stored tumour tissue must be available for sequencing.
- Age
- 18 years or older
- Sex
- All sexes can join.
- Disease stage
- Cancer, including breast, lung, colorectal, genitourinary, gynecological, upper aerodigestive tract, pancreatobiliary, melanoma and rare cancers. No stage is stated.
- Earlier treatment
- The person must have had an exceptionally good or poor response to treatment, as noted by the treating doctor. A suggested guideline is a complete response, a partial response, or at least 6 months without the cancer getting worse.
Read by machine on 9 November 2026.
Where in Canada
- Princess Margaret Cancer CentreToronto, CanadaTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- University Health Network, Toronto
- Trial code
- NCT03740503
- Record updated
- 31 January 2025
- Original description
Studies have shown that tumors from the same patient may respond very differently to the same therapeutic agents. This study aims to investigate the genetic basis of tumors that respond abnormally well or poorly to therapeutic agents in an effort to understand the fundamental genetic basis of this response. The present protocol seeks to retrospectively perform Exome, next-generation (DNA) sequencing and/or other molecular techniques on tumor samples to identify the genetic basis of a patient's exceptional response to chemotherapy.Read full original descriptionShow less
Genomic Investigation of Unusual Responders
Studies have shown that tumors from the same patient may respond very differently to the same therapeutic agents. This study aims to investigate the genetic basis of tumors that respond abnormally well or poorly to therapeutic agents in an effort to understand the fundamental genetic basis of this response. The present protocol seeks to retrospectively perform Exome, next-generation (DNA) sequencing and/or other molecular techniques on tumor samples to identify the genetic basis of a patient's exceptional response to chemotherapy.
Inclusion: The patient must have either an exceptionally good or poor response to treatment, as indicated by their treating physician; The exact definition of this is adaptable to the disease but a suggested guideline is a Complete Response, Partial Response or progression free interval of at least 6 months; Exceptionally poor response includes patients who were expected to respond favourably to a treatment but instead responded poorly (e.g dramatic tumor growth or death); The patient must have sufficient archival tumor available for sequencing; Deceased patients will also be considered for analysis (up to 30 patients per year) if they meet at least one of the following requirements:; a)) Patients who have archival tissue stored within the UHN Laboratory Medicine Program who have had a consent waiver granted by the REB to access the tissue; Patients who have archival tissue banked for further research within the UHN Biospecimen Sciences Program.
Exclusion: None.