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Updated: May 30, 2026

Studying Triple Negative Breast Cancer Using Orthotopic Breast Cancer Model
Published on: March 20, 2020
Clinical trials in triple negative breast cancer
Katherine E Reeder-Hayes1, Lisa A Carey, William M Sikov
1Department of Hematology-Oncology, University of North Carolina at Chapel Hill, UNC Lineberger Comprehensive Cancer Center, Chapel Hill, North Carolina, USA.
Abstract:
Triple negative breast cancer (TNBC) is an aggressive subtype of the disease against which targeted therapies that significantly improve the prognosis for hormone receptor-positive and HER2-overexpressing breast cancers are ineffective. This article summarizes our current understanding of the biology of TNBC as it relates to the efficacy of standard and investigational therapies. It reviews promising preliminary results that have been achieved with chemotherapeutic agents including the platinum analogs and agents that inhibit DNA repair by targeting poly ADP-ribose polymerase (PARP), while anti-angiogenic therapies and those that target the epidermal growth factor receptor (EGFR) have had more limited success. Agents that target a number of other pathways which appear to influence the biologic aggressiveness of TNBC, including src and PI3K, are in early stage clinical trials. As we learn more about TNBC, and which of its characteristics determine treatment response and resistance, we should become better able to select appropriate therapies for biologically defined patient subgroups, and reduce the clinical burden of this disease.
Insights
Triple negative breast cancer (TNBC) is aggressive, lacking effective targeted therapies. Research explores new treatments like platinum analogs and PARP inhibitors, showing promise for better patient outcomes.
Area of Science:
- Oncology
- Cancer Biology
Background:
- Triple negative breast cancer (TNBC) is an aggressive subtype unresponsive to standard targeted therapies.
- Effective treatments for TNBC remain a significant clinical challenge.
Purpose of the Study:
- To summarize the current understanding of TNBC biology.
- To review the efficacy of standard and investigational therapies for TNBC.
Main Methods:
- Literature review of TNBC biology and therapeutic strategies.
- Analysis of preliminary clinical trial data for novel agents.
Main Results:
- Platinum analogs and PARP inhibitors show promising results in TNBC treatment.
- Anti-angiogenic therapies and EGFR inhibitors have limited efficacy.
- Agents targeting SRC and PI3K pathways are in early clinical trials.
Conclusions:
- Further understanding of TNBC biology is crucial for treatment selection.
- Tailoring therapies to specific patient subgroups can reduce disease burden.
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