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Breast TumorNCT01247480

Analysis of Prognostic and Predictive Genomic Signatures Using Archival Paraffin-embedded Tumor Specimens in Breast Cancer

An observational study of Breast Tumor, run by National University Hospital, Singapore at 1 site in Singapore.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

Major Aims of study: 1. To create a gene expression-based prognostic device that complements or exceeds the prognostic utility of conventional biomarkers of breast cancer outcome. 2. Read more about this study

Who is it for?
Any age, women only
Conditions the study is for
Breast Tumor
How many people
Not given
Where
1 siteSingapore
Study dates
Sep 2010to Dec 2014
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
  • Women only
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: 800 breast cancer patients who fulfill the eligibility criteria will be selected from the NUH breast cancer registry (400 for training, 400 for validation).

Who may be able to join

  • Eligible patients should have at least 5 years' follow-up at NUH and have an available archival paraffin-embedded tumor block stored at the Department of Pathology, NUH

Who cannot join

  • Non breast cancer patients

Trial locations and contacts

1 site in 1 country.

Singapore1 site
  • National University Hospital

    Singapore, Singapore

Other trials in Singapore

About this study

Major Aims of study:

  1. To create a gene expression-based prognostic device that complements or exceeds the prognostic utility of conventional biomarkers of breast cancer outcome.
  2. To identify one or more clinical subgroups of patients for which the prognostic device outperforms, or substantially adds to, the prognostic performance of conventional markers that currently determine therapeutic strategies.
Read more

Sub-Aims of study:

  1. Assess the prognostic value of the multiple gene expression signatures, alone and in combination, using a large cohort of breast cancer patients for which pathology, treatment and outcome is available. A "training" and "testing" design is proposed.
  2. Evaluate the utility of a prognostic device that measures gene expression levels from formalin-fixed paraffin-embedded specimens (FFPEs) of primary resected tumors. The investigators will utilize the Affymetrix Quantigene 2.0 Assay and/or the Illumina BeadXpress VeraCode DASL Gene Expression Assay (FDA-approved IVDMIA.)
  3. For specific clinical subgroups of patients/tumors, the investigators will mathematically identify additive or synergistic prognostic relationships between genes and gene signatures that, in combination, will yield maximal risk prediction (distant metastases-free survival) for patients.
  4. Compare the prognostic utility of the investigators device to that of the conventional prognostic variables that are currently used to determine therapeutic strategy.
  5. Incorporate the prognostic signatures into a practical prognosis algorithm that seeks to include conventional measures of outcome such as tumor size, histologic grade, nodal status, patient age, or Nottingham index, etc.

The investigators hypothesize that adequate quality and quantity of tumor RNA may be extracted from archival paraffin-embedded tumor specimens for gene expression profiling, and that archival tumor-derived genomic signatures may be used as prognosticators or predictors in breast cancer.

Read the detailed description

800 breast cancer patients who fulfill the eligibiltiy criteria will be selected from the NUH breast cancer registry (400 for training, 400 for validation). Eligible patients should have at least 5 years' follow-up at NUH and have an available archival paraffin-embedded tumor block stored at the Department of Pathology, NUH. 8-10 ten-micron sections from each tumor block will be cut and RNA extracted from the sections. RNA will then be profiled using high-throughput gene expression platforms (Illumina Veracode assay, Affymetrix Quantigene assay). Raw gene expression data will be applied in the following signatures previously generated by the Genome Institute of Singapore:

  1. 32-gene p53 Pathway Signature
  2. 5-gene Genetic Grade Signature
  3. 33-gene TuM1 Signature
  4. 10-gene ER Signature (Miller \& Tan, et. al., unpublished)
  5. 6-gene 3-Ratio Predictor (Miller \& Karuturi, et. al., unpublished)
  6. 5-gene HER2 Amplicon Predictor (Miller \& Karuturi, et. al., unpublished)
  7. 7-gene Basal-Luminal Discriminator (Miller, unpublished)

The prognostic and/or predictive abilities of these signatures will be compared with conventional clinical prognosticators and predictors with the goal of developing archival tumor-derived genomic tests for breast cancer management in the future.

The archival paraffin-embedded tumor blocks are left-over samples after clinical use. They are not samples that have been consented for research purpose. We are requesting for waiver of consent as this is a minimal risk study. We will ensure that sufficient tissue be left behind for future routine diagnostic purposes. Sections taken from each tumor will be coded with no patient identifiers to protect the privacy and confidentiality of the participants.

The results generated from the tumor samples in this study will not impact on the clinical management of the patients.

Conditions
Breast Tumor
Medical subject headings
Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01247480
Study groupRoleWhat they receive
Breast cancer patientsNot described

Timeline

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

  1. First posted24 Nov 2010 (estimated)
  2. Study startSep 2010
  3. Primary completionDec 2014 (estimated)
  4. Study completionDec 2014

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
Cohort
Time perspective
Retrospective
IDs, dates and publications
ClinicalTrials.gov ID
NCT01247480
Sponsor's protocol ID
BR05/22/10
Status last verified
Jan 2014
First submitted
31 Aug 2010
Last updated
22 Jan 2014
Results posted
No
Data monitoring committee
No

Publications

  • Slodkowska EA, Ross JS. MammaPrint 70-gene signature: another milestone in personalized medical care for breast cancer patients. Expert Rev Mol Diagn. 2009 Jul;9(5):417-22. doi: 10.1586/erm.09.32.

    PubMed 19580427
  • Wang Y, Klijn JG, Zhang Y, Sieuwerts AM, Look MP, Yang F, Talantov D, Timmermans M, Meijer-van Gelder ME, Yu J, Jatkoe T, Berns EM, Atkins D, Foekens JA. Gene-expression profiles to predict distant metastasis of lymph-node-negative primary breast cancer. Lancet. 2005 Feb 19-25;365(9460):671-9. doi: 10.1016/S0140-6736(05)17947-1.

    PubMed 15721472

Questions about this trial

What is this clinical trial studying?

An observational study of Breast Tumor, run by National University Hospital, Singapore at 1 site in Singapore.

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 1 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 22 Jan 2014. 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 Singapore. 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?

On the ClinicalTrials.gov record for NCT01247480, which also lists 2 linked publications.

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 22 Jan 2014.

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