Hormon Duyarlı Metastatik Meme Kanserinde Sıralama Nasıl Olmalı? Erhan Gökmen Ege Üniv. Tıp Fakültesi
Hormonal Tedavide Sıralama: Göz Önüne Alınması Gereken Faktörler Menopozal durum: Premenopozal Postmenopozal Önceki tedaviler; nükse kadar geçen süre: Adjuvan tedavi sırasında veya sonrasında 12 ay içinde nüks: 2. hat tedavi Adjuvan tedaviden >12 ay sonra nüks: 1. hat tedavi Tümor biyolojisi: HER2 negatif veya pozitif Komorbid hastalıklar (kardiak hast., osteoporoz vb)
Premenopozal Hastalarda Hormonal Tedavi Seçenekleri: Birinci hat Over ablasyonu veya supresyonu SERM (tamoksifen) Over ablasyonu/supresyonu + SERM AI kullanılmamalı
Premenopozal Hastalarda Hormonal Tedavi Seçenekleri: Birinci hat Tamoksifen vs Over Ablasyonu: 1997 meta-analizi: 4 çalışma, 220 hasta (Breast Cancer Res Treat. 1997;44(3):201) PFS ve OS benzer (OR 0.86 ve 0.94), trend tmx lehine Tamoksifen + over supresyonu vs over supresyonu 2001 meta-analizi: 4 çalışma, 550 hasta (EORTC, J Clin Oncol. 2001;19(2):343) PFS ve OS kombinasyonla daha iyi (HR 0.70 ve 0.78) Tamoksifen + over supresyonu vs tamoksifen çalışması yok
Premenopozal Hastalarda Hormonal Tedavide Sıralama Birinci hat Over supresyonu + tamoksifen veya Tamoksifen veya Over supresyonu/ablasyonu İkinci ve ileri hatlar İlk hatta kullanılmamış ise over supresyonu veya Over supresyonunun teyidi + postmenopozal algoritma
Postmenopozal Hastalarda Hormonal Tedavi Seçenekleri: Birinci hat Aromataz İnhibitörleri SERM (tamoksifen) Fulvestrant AI+fulvestrant
Proportion of Patients Alive First-line Letrozole İlk vs Hat Tamoxifen, Letrozol vs Tamoksifen Then Crossover 1.0 0.9 0.8 0.7 0.6 0.5 0.4 Median OS Letrozole: 34 mos Tamoxifen: 30 mos Time to Crossover Letrozole: 17 mos Tamoxifen: 14 mos 0.3 0.2 P =.53 (log-rank test) 0.1 0 0 6 12 18 24 30 36 42 48 54 60 Mos Letrozole 1st Tamoxifen 1st Mouridsen H, et al. J Clin Oncol. 2003;21:2101-2109.
Postmenopozal Hastalarda Birinci Hat Tedavi: AI vs Diğer Endokrin Tedaviler 2006 Meta-analizi 23 klinik çalışma; 8504 hasta OS AI vs tamoksifen (HR 0.89, 95% CI 0.80-0.99), ilk hat AI vs diğer endokrin tedaviler (HR 0.87, 95% CI 0.82-0.93), ileri hatlar Mauri D, J Natl Cancer Inst. 2006;98(18):1285
Proportion of Patients Alive and Progression Free FIRST Study: Fulvestrant vs Anastrozol FIRST Study: TTP at TTP Follow-up at Follow-up Analysis Analysis Treatment and Management Approaches in Metastatic Breast Cancer clinicaloptions.com/oncology 1.0 0.8 Fulvestrant 500 mg Anastrozole 1 mg 0.6 0.4 Patients at Risk, n Fulvestrant 500 mg Anastrozole 1 mg 0.2 0 HR: 0.66 (95% CI: 0.47-0.92; P =.01) 0 6 12 18 24 102 103 74 69 65 55 52 39 Mos 45 30 30 36 42 48 34 21 20 8 6 2 0 0 Robertson JF, et al. Breast Cancer Res Treat. 2012;136:503-511.
Treatment and Management Approaches in Metastatic Breast Cancer FACT: Phase III Study of First-line Anastrozole clinicaloptions.com/oncology ± Fulvestrant in HR+ MBC Post- or premenopausal women receiving GnRH agonist, ER- or PgR-positive, in first relapse after treatment for localized disease (N = 514) Fulvestrant 500 mg on Day 1, then 250 mg on Days 15, 29, then every 4th wk Anastrozole 1 mg/day PO (n = 258) Anastrozole 1 mg/day PO (n = 256) Treat until progression or undue toxicity Primary endpoint: TTP Secondary endpoints: ORR, TTF, DoR, clinical benefit rate, OS Bergh J, et al. J Clin Oncol. 2012;30:1919-1925.
Probability of Survival Without Progression Treatment and Management Approaches in Metastatic Breast Cancer FACT: Phase III Study of First-line Anastrozole clinicaloptions.com/oncology ± Fulvestrant in HR+ MBC: TTP 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Bergh J, et al. J Clin Oncol. 2012;30:1919-1925. Median TTP Anastrozole (n = 256): 10.2 mos Anastrozole + fulvestrant (n = 258): 10.8 mos HR: 0.99 (95% CI: 0.81-1.20; P =.91) 0 0 6 12 18 24 30 36 42 48 54 Mos
SWOG S0226: Phase III Study of First-line Anastrozole ± Fulvestrant in HR+ MBC Treatment and Management Approaches in Metastatic Breast Cancer clinicaloptions.com/oncology Stratified by previous adjuvant tamoxifen Treatment until disease progression Postmenopausal women with HR+ MBC (N = 707) Primary endpoint: PFS Anastrozole 1 mg/day PO + Fulvestrant 500 mg on Day 1, 250 mg on Days 14 and 28, 250 mg q28 days thereafter (n = 355) Anastrozole 1 mg/day PO (n = 352) Secondary endpoints: OS, clinical benefit rate, ORR Mehta RS, et al. N Engl J Med. 2012;367:435-444. Women with progression encouraged to cross over to receive fulvestrant
PFS OS S0226 Study of First-line Anastrozole ± Fulvestrant in HR+ MBC: PFS and OS Treatment and Management Approaches in Metastatic Breast Cancer clinicaloptions.com/oncology 1.00 Median PFS Combination: 15.0 mos (95% Cl: 13.2-18.4) Anastrozole: 13.5 mos (95% Cl: 12.1-15.1) 1.00 Median OS Combination: 47.7 mos (95% Cl: 43.4-55.7) Anastrozole: 41.3 mos (95% Cl: 37.2-45.0) 0.75 0.50 0.25 0 Anastrozole (297 events) HR: 0.80 (95% Cl: 0.68-0.94; P =.007 by stratified log-rank test) Anastrozole + Fulvestrant (268 events) 0 12 24 36 48 60 Mos Since Randomization 0.75 0.50 0.25 0 Anastrozole (176 deaths) HR: 0.81 (95% Cl: 0.65-1.00; P =.049 by stratified log-rank test) Anastrozole + Fulvestrant (154 deaths) 0 12 24 36 48 60 72 Mos Since Randomization Mehta RS, et al. N Engl J Med. 2012;367:435-444.
Treatment and Management Approaches in Metastatic Breast Cancer S0226: PFS and OS Overall and by Previous clinicaloptions.com/oncology Adjuvant Tamoxifen Endpoint Anastrozole + Fulvestrant Anastrozole HR (95% CI) P Value Median PFS (n = 694), mos 15.0 13.5 0.80 (0.68-0.94) No previous adjuvant tamoxifen (n = 414) Previous adjuvant tamoxifen (n = 280) 17.0 12.6 0.74 (0.59-0.92) 13.5 14.1 0.89 (0.69-1.15) Median OS (n = 694), mos 47.7 41.3 0.81 (0.65-1.00) No previous adjuvant tamoxifen (n = 414) Previous adjuvant tamoxifen (n = 280) 47.7 39.7 0.74 (0.56-0.98) 49.6 44.5 0.91 (0.65-1.28).007.0055.37.049.0362.59 Mehta RS, et al. N Engl J Med. 2012;367:435-444.
First-line Anastrozole ± Fulvestrant in HR+ MBC: FACT vs SWOG S0226 Treatment and Management Approaches in Metastatic Breast Cancer clinicaloptions.com/oncology FACT [1] SWOG S0226 [2] Patients, n 514 707 De novo metastatic disease, % 13 39 Prior adjuvant chemotherapy, % 45 33 Previous adjuvant endocrine therapy (tamoxifen), % 68 40 Mean PFS range, mos 10-11 13-15 PFS benefit No Yes 1. Bergh J, et al. J Clin Oncol. 2012;30:1919-1925. 2. Mehta RS, et al. N Engl J Med. 2012;367:435-444.
Postmenopozal Hastalarda Hormonal Tedavide Sıralama Birinci hat Aromataz inhibitörü Aİ nün uygun olmadığı veya tolere edilemediği durumlarda Tamoksifen Fulvestrant (faz II randomize çalışma) Aİ+fulvestrant kullanımı standart değil
Postmenopozal Hastalarda Hormonal Tedavide Sıralama: İkinci Hat Tedavi Çapraz direnç göstermeyen Aİ Fulvestrant Tamoksifen Exemestan+everolimus
AI sonrası İkinci Hatta Tamoksifen Efficacy of tamoxifen following anastrozole ( Arimidex ) compared with anastrozole following tamoxifen as first-line treatment for advanced breast cancer in postmenopausal women European Journal of Cancer, Volume 39, Issue 16, 2003, 2310-2317
AI sonrası İkinci Hatta Tamoksifen Objective response and clinical benefit following cross-over treatment with anastrozole and tamoxifen for patients with oestrogen and/or progesterone receptor-positive status European Journal of Cancer, Volume 39, Issue 16, 2003, 2310-2317
İkinci Hat Tedavi: EFFECT EFECT Fulvestrant similar to exemestane in postmenopausal women progressing following prior NSAI with HR+ ABC in phase lll placebo-controlled trial N = 693 PMW with HR+ ABC after failure of NSAI therapy FUL 500 mg day 1, 250 mg day 14, 28, monthly EXE 25 mg QD Primary: TTP Secondary: ORR, CBR, DOR, TTR, OS, tolerability FUL n = 351 EXE n = 342 P Value TTP, mo 3.7 3.7.653 ORR, % 7.4 6.7.736 CBR, % 32.2 31.5.853 CBR, clinical benefit rate; DOR, duration of response; EXE, exemestane; FUL, fulvestrant; OS, overall survival; PMW; postmenopausal women; TTR, time to response Chia S, et al. J Clin Oncol. 2008;26(10):1664-1670. Chia S, J Clin Oncol. 2008;26(10):1664
İkinci Hat Tedavi: SoFEA SoFEA Fulvestrant + anastrozole similar to fulvestrant alone or exemestane alone in postmenopausal women with HR+ ABC progressing following prior NSAI therapy N = 723 PMW with HR+ ABC following progression on NSAI FUL 500 mg loading day 0, then 250 mg monthly + ANA 1 mg/daily FUL 500 mg loading day 0, then 250 mg monthly EXE 25 mg/daily EXE n = 249 FUL n = 231 ANA + FUL n = 243 PFS, mo 3.4 4.8 4.4 Primary: PFS (F + A vs F; F vs E) Secondary: ORR, CBR, OS, tolerability EXE vs FUL HR 0 95, 0 79-1 14; log-rank p=0 56 HR (95% CI): 1.00 (0.83 1.21) P =.98 No differences were observed in PFS, ORR, CBR, or OS. Johnston S, et al. Eur J Cancer. 2012;48(Suppl 3):2LBA. Johnston SR, Lancet Oncol. 2013;14(10):989
BOLERO-2: Exemestane ± Everolimus in Nonsteroidal AI Refractory Advanced BC Treatment and Management Approaches in Metastatic Breast Cancer clinicaloptions.com/oncology Postmenopausal women with HR-positive, HER2-negative advanced breast cancer refractory to letrozole or anastrozole (N = 724) Refractory to therapy: Recurrence during or within 12 mos of end of adjuvant treatment Progression during or within 1 mo after end of treatment for advanced disease Baselga J, et al. N Engl J Med. 2012;366:520-529. Everolimus 10 mg/day + Exemestane 25 mg/day (n = 485) Placebo + Exemestane 25 mg/day (n = 239) Stratification: Sensitivity to previous hormonal therapy Presence of visceral disease No crossover allowed Primary endpoint: PFS Secondary endpoints: OS, ORR, CBR, safety, QoL, bone markers
Patients (%) Treatment and Management Approaches in Metastatic Breast Cancer clinicaloptions.com/oncology BOLERO-2: PFS at 18-Mo Follow-up Higher ORR (9.5 versus 0.4 percent) 100 80 60 Censoring Times EVE + EXE (n/n = 310/485) PBO + EXE (n/n = 200/239) Median PFS, Mos EVE + EXE: 7.82 PBO + EXE: 3.19 HR: 0.45 (95% CI: 0.38-0.54; Log-rank P <.0001) 40 20 0 0 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 Week Patients at Risk, n EVE + EXE 485 436 366 304 257 221 185 158 124 91 66 50 35 24 22 13 10 8 2 1 0 PBO + EXE 239 190 132 96 67 50 39 30 21 15 10 8 5 3 1 1 1 0 0 0 0 Piccart-Gebhart M, et al. ASCO 2012. Abstract 559.
Treatment and Management Approaches in Metastatic Breast Cancer clinicaloptions.com/oncology BOLERO-2: Advers Events at 18-Mo Follow-up Adverse Event, % Everolimus + Exemestane (n = 482) Grade Placebo + Exemestane (n = 238) Grade All 3 4 All 3 4 Total 100 44 9 91 23 5 Stomatitis 59 8 0 12 < 1 0 Rash 39 1 0 7 0 0 Fatigue 37 4 < 1 27 1 0 Diarrhea 34 2 < 1 19 < 1 0 Nausea 31 < 1 < 1 29 1 0 Appetite decreased 31 1 0 13 1 0 Noninfectious pneumonitis 16 3 0 0 0 0 Hyperglycemia 14 5 < 1 2 < 1 0 Piccart-Gebhart M, et al. ASCO 2012. Abstract 559.
Treatment and Management Approaches in Metastatic Breast Cancer clinicaloptions.com/oncology Postmenopozal Hastalarda Hormonal Tedavide Sıralama: İkinci Hat Tedavi Standart tedavi yok: Exemestan+everolimus Exemestan Fulvestrant Tamoksifen
Treatment and Management Approaches in Metastatic Breast Cancer clinicaloptions.com/oncology Endokrin Duyarlı Meme Kanserinde Sıralama: Sonuçlar Premenopozal Birinci hat Over supresyonu+tamoksifen Tamoksifen İkinci hat Gonadal supresyon sonrası postmenopozal algoritma Postmenopozal Birinci hat Aromataz İnhibitörü İkinci hat Exemestan+everolimus, Exemestan, Fulvestrant, Tamoksifen