MIRNA Profiling of Breast Cancer in Patients Undergoing Neoadjuvant or Adjuvant Treatment for Locally Advanced & Inflammatory Breast Cancer
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ClinicalTrials.gov Identifier: NCT01231386 |
Recruitment Status
:
Recruiting
First Posted
: November 1, 2010
Last Update Posted
: August 22, 2017
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Condition or disease |
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Breast Cancer |
Current neoadjuvant or adjuvant treatment strategies do not allow for rationale incorporation of such agents. One needs tools to predict both de novo and acquired resistance to therapeutic agents. This is a difficult task, due to the compound nature of escape routes: tumor exposure is usually to a combination of therapeutic agents and the mechanisms of resistance are broad: intrinsic resistance due to existing mutations, or regulatory - miRNA, other epigenetic - alterations, polymorphisms, tumor cell adaptation via new mutations and activation of alternative pathways, lack of optimal pharmacokinetics/genomics, activation of efflux mechanisms, accelerated repair mechanisms are involved.
Similarly, not all patients who are candidates for primary surgical intervention to be followed by post-operative adjuvant therapy benefit from such systemic treatments. The mechanisms of resistance be it de novo in surviving stem cell/tumorigenic components, or acquired by cells left behind "dormant" after the surgical intervention, are not well delineated.
Breast tumors subjected to neoadjuvant chemotherapy allow for baseline and treatment-effected sampling. Characterization of core biopsy specimens of primary tumors procured prior to exposure to neoadjuvant therapy from different varieties of breast cancer subtypes, and of subsequent mid-treatment and intraoperative (procured during definitive surgery following completion of neoadjuvant therapy) samples should help to assess the predictive value of the pre-treatment and post-treatment miRNA expression profile for complete and near complete response, as a surrogate marker for survival. Similarly, patterns of de novo and acquired resistance may emerge when assessment of pre- and post treatment miRNA expression profiles are analyzed in a supervised manner of classification using pathological response as classifier. Samples obtained from patients with primary surgical removal of their tumors before any systemic treatment exposure on the other hand, will allow for determining markers of prognosis, and predictors for response to therapeutic targeting agents.
Time Perspective: Retrospective/Prospective
Study Type : | Observational |
Estimated Enrollment : | 165 participants |
Observational Model: | Cohort |
Time Perspective: | Other |
Official Title: | MIRNA Profiling of Breast Cancer in Patients Undergoing Neoadjuvant or Adjuvant Treatment for Locally Advanced & Inflammatory Breast Cancer |
Study Start Date : | November 2009 |
Estimated Primary Completion Date : | May 2018 |
Estimated Study Completion Date : | May 2018 |

- Performance of miRNA profiling from tumor samples from primary breast tumors [ Time Frame: 3 years after completion of sample collection ]
- Assessment of miRNA profiles from blood/serum samples from patients at baseline, and if feasible, at different time points [ Time Frame: 3 years after completion of sample collection ]
- Analysis of miRNA findings and correlate miRNA patterns of expression in tumor, lymph nodes -if available- and in serum [ Time Frame: 3 years after competion of sample collection ]
- Correlation of classic tumor markers such as estrogen and progesterone receptor (ER,PR), and HER2 expression with tumor stage and grade [ Time Frame: 3 years after completion of sample collection ]
- Determination of specific miRNA functions [ Time Frame: 3 years after completion of sample collection ]
- Determination of ability to knock down functionally relevant overexpressed miRNAs by miR-sponge/antagomirs [ Time Frame: 3 years after completion of sample collection ]
- Design of prospective pilot phase I-II trials to interfere with dysfunctional/dysregulated miRNA expression [ Time Frame: 3 years after completion of sample collection ]
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 18 Years and older (Adult, Senior) |
Sexes Eligible for Study: | Female |
Accepts Healthy Volunteers: | No |
Sampling Method: | Probability Sample |
Inclusion Criteria:
- Female,
- Breast Cancer
- > 18 years,
- regardless of histology, treatment phase, or stage
Exclusion Criteria:

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01231386
Contact: George Somlo, MD | 800 826-4673 | gsomlo@coh.org |
United States, California | |
City of Hope | Recruiting |
Duarte, California, United States, 91010 | |
Contact: Michele Kirschenbaum 800-826-4673 mkirschenbaum@coh.org | |
Contact: Suzanne Swain-Cabriales, RN 800 826-4673 sswain-cabriales@coh.org | |
Principal Investigator: George Somlo, MD |
Principal Investigator: | George Somlo, MD | City of Hope Medical Center |
Responsible Party: | City of Hope Medical Center |
ClinicalTrials.gov Identifier: | NCT01231386 History of Changes |
Other Study ID Numbers: |
09147 |
First Posted: | November 1, 2010 Key Record Dates |
Last Update Posted: | August 22, 2017 |
Last Verified: | August 2017 |
Keywords provided by City of Hope Medical Center:
Female Breast Cancer miRNA expression Neoadjuvant/Adjuvant Treatment Locally and Inflammatory Breast Cancer |
Additional relevant MeSH terms:
Breast Neoplasms Inflammatory Breast Neoplasms Neoplasms by Site |
Neoplasms Breast Diseases Skin Diseases |