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Breast CancerNCT00122239

A Study of Gene Polymorphisms and Normal Tissue Radiation Injury in Patients Treated for Breast, Prostate, Brain, Lung, and Head and Neck Cancers

An observational study of Breast Cancer and Glioma, run by AHS Cancer Control Alberta at 1 site in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This study will examine, for the first time, the independent contribution of a patient's own genetic makeup to the development of post-radiation complications, permitting the future development of predictive tests to avoid radiation injury. Read more about this study

Who is it for?
Any age
Conditions the study is for
Breast Cancer, Glioma, Prostate Cancer
How many people
13 participants
Where
1 siteCanada
Study dates
Jan 2005to Feb 2017
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Patients will be selected consecutively if they have undergone a course of radical radiotherapy.

Who may be able to join

  • Breast cancer
  • Prostate cancer
  • Squamous cell carcinoma (SCC) of the head and neck
  • Non-small-cell-lung carcinoma (NSCLC)
  • Glioma treated by radiotherapy

Who cannot join

  • Follow-up less than 18 months

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Cross Cancer Institute

    Edmonton, Alberta, T6G 1Z2

Other trials in Canada

About this study

This study will examine, for the first time, the independent contribution of a patient's own genetic makeup to the development of post-radiation complications, permitting the future development of predictive tests to avoid radiation injury. To do this, the investigators will examine gene markers in a series of breast, prostate, brain and lung cancer survivors who have received conformal radiotherapy between 1996 and 2003 at the Cross Cancer Institute and Tom Baker Cancer Centre.

Read the detailed description

Major innovations in radiotherapy (RT) delivery (3D conformal RT, intensity modulated RT) now permit RT dose escalation to be tested as a means of improving disease control in many tumour sites. With delivery innovations, life-threatening toxicity occurs rarely, but significant clinical toxicity is common. In previous work the investigators have studied a cohort of 98 prostate patients who received dose-escalated 3D-CRT and have obtained evidence of genetic and dosimetric factors underlying rectal/bladder toxicity. They posit that the late radiation toxicity disease state has significant genetic determinants in other malignancies. These determinants are neither understood nor accounted for in selection of treatment, and the investigators propose to study additional well-characterized cohorts, who are clinically well from a disease control perspective, given that comprehensive dosimetric and outcome information is available on all.

For a thorough understanding of the molecular processes underlying tissue responses to radiation damage, the investigators propose a genomic analysis. Their working hypothesis is that normal organ toxicity will be associated with patient genetics as measured by single nucleotide polymorphisms (SNPs) in a select group of genes. The criteria for selecting SNPs will be based on a candidate gene approach, choosing genes implicated or demonstrated in DNA repair pathways and radiation-induced tissue damage/tissue homeostasis. Analysis of these data will use both statistically based bioinformatics approaches.

Keywords
radiotherapy, radiation toxicity, single nucleotide polymorphism, breast carcinoma, prostate carcinoma, squamous cell carcinoma of the head and neck, lung carcinoma (non-small cell)
Medical subject headings
Breast Neoplasms, Glioma, Prostatic Neoplasms, Carcinoma, Squamous Cell, Carcinoma, Non-Small-Cell Lung, Head and Neck Neoplasms, Radiation Injuries, Squamous Cell Carcinoma of Head and Neck

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Jul 2005 (estimated)
  2. Study startJan 2005
  3. Primary completionFeb 2017 (estimated)
  4. Study completionFeb 2017 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Retrospective
Enrolment
13 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00122239
Sponsor's protocol ID
SP-14-0043 / ethics 21725
Status last verified
Mar 2016
First submitted
20 Jul 2005
Last updated
16 Mar 2016
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Breast Cancer and Glioma, run by AHS Cancer Control Alberta at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 16 Mar 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Mar 2016.

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