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PRECISION MEDICINE FOR BREAST CANCER<br />

Chemoresistant Triple-Negative Breast Cancer) trial. This is<br />

a single-arm, phase II, open-label, preoperative study of a<br />

small-molecule NOTCH inhibitor that is administered for 9<br />

days after completion of neoadjuvant chemotherapy in<br />

patients with triple-negative breast cancer that is<br />

chemotherapy-resistant.<br />

CONCLUSION<br />

To the present day, great progress has been made in the molecular<br />

profıling of breast cancer, with an expanding array of<br />

molecular aberrations being identifıed. The subsequent development<br />

of experimental targeted agents promises to<br />

improve cancer treatment for patients bearing specifıc molecular<br />

aberrations. A major challenge is the assessment of<br />

the functional signifıcance of such aberrations and the verifıcation<br />

of their relevance as predictors of sensitivity to their<br />

matched targeted agents under development. The latter can<br />

be achieved through well-conducted clinical trials that match<br />

several specifıc genotypes of the disease with a number of targeted<br />

agents. To this end, innovative study designs must<br />

be implemented to expedite anticancer drug development.<br />

Such studies need to be coupled with next-generation<br />

molecular profıling techniques that have been validated to<br />

secure fındings’ reproducibility. The one-size-fıts-all paradigm<br />

of conventional study design must be abandoned,<br />

and the approval strategies revisited in some cases. More<br />

extensive collaboration between academia around the<br />

world, regulatory agencies, and pharmaceutical companies<br />

developing new anticancer compounds is becoming a<br />

necessity for these innovative study designs to be successfully<br />

implemented.<br />

Disclosures of Potential Conflicts of Interest<br />

Relationships are considered self-held and compensated unless otherwise noted. Relationships marked “L” indicate leadership positions. Relationships marked “I” are those held by an immediate<br />

family member; those marked “B” are held by the author and an immediate family member. Institutional relationships are marked “Inst.” Relationships marked “U” are uncompensated.<br />

Employment: None. Leadership Position: None. Stock or Other Ownership Interests: None. Honoraria: None. Consulting or Advisory Role: Martine<br />

J. Piccart-Gebhart, Amgen, Astellas, AstraZeneca, Bayer, Eli Lilly, Invivis, MSD, Novartis, Pfizer, Roche-Genentech, sanofi Aventis, Symphogen, Synthon,<br />

Verastem. Speakers’ Bureau: None. Research Funding: Martine J. Piccart-Gebhart, Amgen (Inst), Astellas (Inst), AstraZeneca (Inst), Bayer (Inst), Eli Lilly<br />

(Inst), Invivis (Inst), MSD (Inst), Novartis (Inst), Pfizer (Inst), Roche-Genentech (Inst), Sanofi Aventis (Inst), Symphogen (Inst), Synthon (Inst), Verastem (Inst).<br />

Patents, Royalties, or Other Intellectual Property: None. Expert Testimony: None. Travel, Accommodations, Expenses: None. Other Relationships:<br />

None.<br />

References<br />

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Medicine. http://www.cancer.gov/dictionary?cdrid561717. Accessed<br />

January 29, 2015.<br />

2. Zardavas D, Pugliano L, Piccart M. Personalized therapy for breast cancer:<br />

a dream or a reality? Future Oncol. 2013;9:1105-1119.<br />

3. Ward HW. Anti-oestrogen therapy for breast cancer: a trial of tamoxifen<br />

at two dose levels. Br Med J. 1973;1:13-14.<br />

4. Lerner HJ, Band PR, Israel L, et al. Phase II study of tamoxifen: report of<br />

74 patients with stage IV breast cancer. Cancer Treat Rep. 1976;60:1431-<br />

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5. Slamon DJ, Leyland-Jones B, Shak S, et al. Use of chemotherapy plus a<br />

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7. Zardavas D, Cameron D, Krop I, et al. Beyond trastuzumab and lapatinib:<br />

new options for HER2-positive breast cancer. Am Soc Clin Oncol<br />

Educ Book. 2013.<br />

8. Fukuoka M, Wu YL, Thongprasert S, et al. Biomarker analyses and fınal<br />

overall survival results from a phase III, randomized, open-label, fırstline<br />

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Nat Rev Clin Oncol. In press.<br />

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the cancer genome era. J Clin Oncol. 2013;31:1834-1841.<br />

12. Sotiriou C, Pusztai L. Gene-expression signatures in breast cancer.<br />

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15. Curtis C, Shah SP, Chin SF, et al. The genomic and transcriptomic architecture<br />

of 2,000 breast tumours reveals novel subgroups. Nature.<br />

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asco.org/edbook | 2015 ASCO EDUCATIONAL BOOK<br />

e189

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