Preoperative Fulvestrant With or Without Enzalutamide in ER+/Her2- Breast Cancer

Summary

This is a randomized two arm phase II study to further evaluate the efficacy of fulvestrant plus enza compared to single agent fulvestrant in postmenopausal women with locally advanced AR+/ER+/Her2- BC who will have local surgery after \~4 months on treatment.

Timeline

Start

2017-09-21

Primary completion

2023-02-17

Completion

2027-02

Publications

• Background Collins LC, Cole KS, Marotti JD, Hu R, Schnitt SJ, Tamimi RM. Androgen receptor expression in breast cancer in relation to molecular phenotype: results from the Nurses' Health Study. Mod Pathol. 2011 Jul;24(7):924-31. doi: 10.1038/modpathol.2011.54. Epub 2011 May 6.
• Background Elebro K, Borgquist S, Simonsson M, Markkula A, Jirstrom K, Ingvar C, Rose C, Jernstrom H. Combined Androgen and Estrogen Receptor Status in Breast Cancer: Treatment Prediction and Prognosis in a Population-Based Prospective Cohort. Clin Cancer Res. 2015 Aug 15;21(16):3640-50. doi: 10.1158/1078-0432.CCR-14-2564. Epub 2015 Apr 22.
• Background Hu R, Dawood S, Holmes MD, Collins LC, Schnitt SJ, Cole K, Marotti JD, Hankinson SE, Colditz GA, Tamimi RM. Androgen receptor expression and breast cancer survival in postmenopausal women. Clin Cancer Res. 2011 Apr 1;17(7):1867-74. doi: 10.1158/1078-0432.CCR-10-2021. Epub 2011 Feb 15.
• Background Cochrane DR, Bernales S, Jacobsen BM, Cittelly DM, Howe EN, D'Amato NC, Spoelstra NS, Edgerton SM, Jean A, Guerrero J, Gomez F, Medicherla S, Alfaro IE, McCullagh E, Jedlicka P, Torkko KC, Thor AD, Elias AD, Protter AA, Richer JK. Role of the androgen receptor in breast cancer and preclinical analysis of enzalutamide. Breast Cancer Res. 2014 Jan 22;16(1):R7. doi: 10.1186/bcr3599.
• Background D'Amato NC, Gordon MA, Babbs B, Spoelstra NS, Carson Butterfield KT, Torkko KC, Phan VT, Barton VN, Rogers TJ, Sartorius CA, Elias A, Gertz J, Jacobsen BM, Richer JK. Cooperative Dynamics of AR and ER Activity in Breast Cancer. Mol Cancer Res. 2016 Nov;14(11):1054-1067. doi: 10.1158/1541-7786.MCR-16-0167. Epub 2016 Aug 26.
• Background Takagi K, Miki Y, Nagasaki S, Hirakawa H, Onodera Y, Akahira J, Ishida T, Watanabe M, Kimijima I, Hayashi S, Sasano H, Suzuki T. Increased intratumoral androgens in human breast carcinoma following aromatase inhibitor exemestane treatment. Endocr Relat Cancer. 2010 Apr 21;17(2):415-30. doi: 10.1677/ERC-09-0257. Print 2010 Jun.
• Background Elias A, Richer JK, LoRusso P, Peterson AC, Steinberg J, Mordenti J, Lopez C, Hudis C, Traina T. MDV3100-08: A phase 1 open-label, dose-escalation study evaluating the safety, tolerability, and pharmacokinetics of MDV3100 in women with incurable breast cancer. ASCO 2012, TPS668
• Background Scher HI, Fizazi K, Saad F, Taplin ME, Sternberg CN, Miller K, de Wit R, Mulders P, Chi KN, Shore ND, Armstrong AJ, Flaig TW, Flechon A, Mainwaring P, Fleming M, Hainsworth JD, Hirmand M, Selby B, Seely L, de Bono JS; AFFIRM Investigators. Increased survival with enzalutamide in prostate cancer after chemotherapy. N Engl J Med. 2012 Sep 27;367(13):1187-97. doi: 10.1056/NEJMoa1207506. Epub 2012 Aug 15.
• Background Yeo B, Dowsett M. Neoadjuvant endocrine therapy: Patient selection, treatment duration and surrogate endpoints. Breast. 2015 Nov;24 Suppl 2:S78-83. doi: 10.1016/j.breast.2015.07.019. Epub 2015 Aug 6.
• Background Charehbili A, Fontein DB, Kroep JR, Liefers GJ, Mieog JS, Nortier JW, van de Velde CJ. Neoadjuvant hormonal therapy for endocrine sensitive breast cancer: a systematic review. Cancer Treat Rev. 2014 Feb;40(1):86-92. doi: 10.1016/j.ctrv.2013.06.001. Epub 2013 Jul 23.
• Background Semiglazov VF, Semiglazov VV, Dashyan GA, Ziltsova EK, Ivanov VG, Bozhok AA, Melnikova OA, Paltuev RM, Kletzel A, Berstein LM. Phase 2 randomized trial of primary endocrine therapy versus chemotherapy in postmenopausal patients with estrogen receptor-positive breast cancer. Cancer. 2007 Jul 15;110(2):244-54. doi: 10.1002/cncr.22789.
• Background von Minckwitz G, Untch M, Nuesch E, Loibl S, Kaufmann M, Kummel S, Fasching PA, Eiermann W, Blohmer JU, Costa SD, Mehta K, Hilfrich J, Jackisch C, Gerber B, du Bois A, Huober J, Hanusch C, Konecny G, Fett W, Stickeler E, Harbeck N, Muller V, Juni P. Impact of treatment characteristics on response of different breast cancer phenotypes: pooled analysis of the German neo-adjuvant chemotherapy trials. Breast Cancer Res Treat. 2011 Jan;125(1):145-56. doi: 10.1007/s10549-010-1228-x. Epub 2010 Nov 3.
• Background Kaufmann M, Hortobagyi GN, Goldhirsch A, Scholl S, Makris A, Valagussa P, Blohmer JU, Eiermann W, Jackesz R, Jonat W, Lebeau A, Loibl S, Miller W, Seeber S, Semiglazov V, Smith R, Souchon R, Stearns V, Untch M, von Minckwitz G. Recommendations from an international expert panel on the use of neoadjuvant (primary) systemic treatment of operable breast cancer: an update. J Clin Oncol. 2006 Apr 20;24(12):1940-9. doi: 10.1200/JCO.2005.02.6187.
• Background Dowsett M, Smith IE, Ebbs SR, Dixon JM, Skene A, Griffith C, Boeddinghaus I, Salter J, Detre S, Hills M, Ashley S, Francis S, Walsh G; IMPACT Trialists. Short-term changes in Ki-67 during neoadjuvant treatment of primary breast cancer with anastrozole or tamoxifen alone or combined correlate with recurrence-free survival. Clin Cancer Res. 2005 Jan 15;11(2 Pt 2):951s-8s.
• Background Ellis MJ, Ma C. Letrozole in the neoadjuvant setting: the P024 trial. Breast Cancer Res Treat. 2007;105 Suppl 1(Suppl 1):33-43. doi: 10.1007/s10549-007-9701-x. Epub 2007 Oct 3.
• Background Ellis MJ, Llombart-Cussac A, Feltl D, Dewar JA, Jasiowka M, Hewson N, Rukazenkov Y, Robertson JF. Fulvestrant 500 mg Versus Anastrozole 1 mg for the First-Line Treatment of Advanced Breast Cancer: Overall Survival Analysis From the Phase II FIRST Study. J Clin Oncol. 2015 Nov 10;33(32):3781-7. doi: 10.1200/JCO.2015.61.5831. Epub 2015 Sep 14.
• Background Robertson JF, Lindemann JP, Llombart-Cussac A, Rolski J, Feltl D, Dewar J, Emerson L, Dean A, Ellis MJ. Fulvestrant 500 mg versus anastrozole 1 mg for the first-line treatment of advanced breast cancer: follow-up analysis from the randomized 'FIRST' study. Breast Cancer Res Treat. 2012 Nov;136(2):503-11. doi: 10.1007/s10549-012-2192-4. Epub 2012 Oct 13.
• Background Simon R. Optimal two-stage designs for phase II clinical trials. Control Clin Trials. 1989 Mar;10(1):1-10. doi: 10.1016/0197-2456(89)90015-9.
• Elias AD, Staley AW, Fornier M, Vidal GA, Alami V, Sams S, Spoelstra NS, Goodspeed A, Kabos P, Diamond JR, Shagisultanova E, Gallagher RI, Wulfkuhle JD, Petricoin EF, Zolman KL, McSpadden T, Jordan KR, Slansky JE, Borges VF, Gao D, Richer JK. Clinical and immune responses to neoadjuvant fulvestrant with or without enzalutamide in ER+/Her2- breast cancer. NPJ Breast Cancer. 2024 Oct 6;10(1):88. doi: 10.1038/s41523-024-00697-5.

Drugs

Indications