5
|
Shao Z, Pang D, Yang H, Li W, Wang S, Cui S, Liao N, Wang Y, Wang C, Chang YC, Wang H, Kang SY, Jiang Z, Li J, Zhou J, Althaus B, Mao Y, Eng-Wong J. Abstract P6-17-17: Pertuzumab, trastuzumab, and docetaxel for HER2-positive early or locally advanced breast cancer in the neoadjuvant setting: Efficacy and safety analysis of a randomized phase III study in Asian patients (PEONY). Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-17-17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Pertuzumab and trastuzumab (P and H; F. Hoffmann-La Roche Ltd, Basel, CH) bind to distinct HER2 subdomains and have complementary modes of anticancer activity in HER2-positive breast cancer (BC). A global Phase II study (NeoSphere) reported that neoadjuvant treatment with P+H+docetaxel (D) significantly increased breast pathologic complete response (bpCR) vs H+D in patients (pts) with early/locally advanced/inflammatory HER2-positive BC (Gianni et al. Lancet Oncol 2012). PEONY (NCT02586025), a randomized, multicenter, double-blind, placebo-controlled, Phase III trial conducted in an Asian population (mainland China, Taiwan, Korea, Thailand), primarily compared the efficacy, safety, and tolerability of P+H+D vs placebo (Pla)+H+D in the neoadjuvant setting. We present data from the primary analysis.
Methods
Pts with centrally confirmed HER2-positive early (T2–3, N0–1)/locally advanced (T2–3, N2 or N3; T4, any N) BC were randomized 2:1 to 4 cycles of P+H+D or Pla+H+D every 3 weeks, before surgery: P, 840 mg loading/420 mg maintenance doses (or Pla); H, 8 mg/kg loading/6 mg/kg maintenance; D, 75 mg/m2. Post-surgery, pts received 3 cycles of fluorouracil, epirubicin, and cyclophosphamide followed by 13 cycles of P+H or Pla+H for up to 1 year (total of 17 HER2-targeted therapy cycles). The primary endpoint was total pCR rate (tpCR; absence of any residual invasive cancer in the breast and lymph nodes [ypT0/is, ypN0]) assessed by independent review committee (IRC) when pts completed surgery with a tpCR assessment. Missing/invalid assessments were considered residual disease.
Results
A total of 329 pts were randomized: 219 to P, 110 to Pla. Baseline characteristics were well balanced. Most pts had early BC (69.6%) and were from mainland China (79.3%). In the intention-to-treat population, the tpCR rate by IRC was 39.3% in the P arm and 21.8% in the Pla arm; a clinically and statistically significant difference of 17.5% (95% CI 6.9–28.0; p=0.0014). The local pathologist-assessed tpCR rates were 39.3% and 20.9%, respectively. A consistent treatment benefit of P vs Pla was observed in subgroups. Incidences of grade ≥3 adverse events (Aes) were 48.6% in the P arm and 41.8% in the Pla arm. Of the most common grade 3 Aes (≥3% of pts), neutropenia was higher in the P arm (38.1% vs 32.7%). Of the most common any-grade Aes (≥5%), diarrhea was higher in the P arm (38.5% vs 16.4%). No heart failure (New York Heart Association Functional Classification III or IV) or significant left ventricular ejection fraction decline events (≥10 percentage points from baseline and to <50%) were observed during neoadjuvant therapy.
Conclusions
PEONY met its primary endpoint: P+H+D resulted in a clinically meaningful and statistically significant improvement in the tpCR rate by IRC vs Pla+H+D for the neoadjuvant treatment of HER2-positive early/locally advanced BC in Asian pts. Safety data were in line with the known P safety profile and generally comparable between treatment arms. Results were similar to NeoSphere, and confirm that P+H+D provides superior anticancer activity to H+D alone.
Citation Format: Shao Z, Pang D, Yang H, Li W, Wang S, Cui S, Liao N, Wang Y, Wang C, Chang Y-C, Wang H, Kang SY, Jiang Z, Li J, Zhou J, Althaus B, Mao Y, Eng-Wong J. Pertuzumab, trastuzumab, and docetaxel for HER2-positive early or locally advanced breast cancer in the neoadjuvant setting: Efficacy and safety analysis of a randomized phase III study in Asian patients (PEONY) [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-17-17.
Collapse
Affiliation(s)
- Z Shao
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - D Pang
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - H Yang
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - W Li
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - S Wang
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - S Cui
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - N Liao
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - Y Wang
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - C Wang
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - Y-C Chang
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - H Wang
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - SY Kang
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - Z Jiang
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - J Li
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - J Zhou
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - B Althaus
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - Y Mao
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| | - J Eng-Wong
- Fudan University Shanghai Cancer Center, Shanghai, China; Harbin Medical University Cancer Hospital, Harbin, China; Zhejiang Cancer Hospital, Hangzhou, China; The First Hospital of Jilin University, Changchun, China; Sun Yat-sen University Cancer Center, Guangzhou, China; Henan Cancer Hospital, Zhengzhou, China; Guangdong General Hospital, Guangzhou, China; Shandong Cancer Hospital, Jinan, China; Fujian Medical University Union Hospital, Fujian, China; Mackay Memorial Hospital, Taipei City, Taiwan; China Medical University Hospital, Taichung City, Taiwan; Ajou University School of Medicine, Suwon, Republic of Korea; The Affiliated Hospital of Military Medical Sciences (The 307th Hospital of Chinese People's Liberation Army), Beijing, China; Roche Product Development, Shanghai, China; Genentech, Inc., South San Francisco, CA
| |
Collapse
|
8
|
Elias A, Modi S, Krop IE, Pegram M, Ipe D, Guardino EA, Althaus B, LoRusso PL. Abstract P4-12-09: Results from a phase 2a study of trastuzumab emtansine, paclitaxel, and pertuzumab in patients with HER2-positive metastatic breast cancer. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p4-12-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction
The antibody-drug conjugate trastuzumab emtansine (T-DM1) combines the antitumor properties of trastuzumab (H) with the cytotoxic agent DM1 via a stable linker. T-DM1 prolonged PFS and OS vs standard therapy in a phase 3 study of patients (pts) with HER2-positive metastatic breast cancer (MBC) previously treated with H and a taxane. Preclinical data suggest synergy when T-DM1 is combined with paclitaxel (T) or pertuzumab (P). In the phase 1b study TDM4652g, the maximum tolerated doses of T-DM1 + T ± P were defined. Here we present results from the phase 2a expansion, which further explored feasibility and safety.
Methods
TDM4652g is a phase 1b/2a open-label study of pts with HER2-positive locally advanced or MBC. Pts had no prior T-DM1 or P, no baseline peripheral neuropathy (PN; phase 2a only), and had LVEF ≥50%. Pts in phase 2a were randomized to T-DM1 3.6 mg/kg q3w + T 80 mg/m2 qw ± P 840 mg loading dose [LD], then 420 mg q3w. The primary objective, feasibility, was assessed by the percent of evaluable pts receiving ≥12 doses of T within 15 weeks of cycle 1, day 1, and those receiving 12 consecutive weeks of T.
Results
Forty-four pts were enrolled (T-DM1 + T, n = 22; T-DM1 + T + P, n = 22); the data snapshot date was May 23, 2013. Median age was 52.5 years (range, 35–81); median number of prior agents for MBC was 6 (range, 0–12). 43 (98%) pts had previously received H, and 36 (82%) pts had received taxane therapy. Median dose intensities were T-DM1, 94% (range 54–105); T, 50% (range 9–100) and P, 100% (range 67–100). 2 pts were not evaluable for feasibility (progressive disease [PD] before receiving 12 doses of T). 21/42 (50%) pts received ≥12 doses of T within 15 weeks; 6/42 (14%) pts received 12 consecutive doses by week 12, and 33/42 (79%) pts received ≥8 doses within 12 weeks. Grade 3/4 adverse events (AEs) were reported for 18 (82%) and 17 (77%) pts in the T-DM1 + T and T-DM1 + T + P groups, respectively (see Table for AEs and best responses). Ten pts discontinued early due to PD (n = 6), PD-related death (n = 2), AEs (n = 1), or withdrawal from the study (n = 1). 21 pts discontinued T due to AEs, most commonly PN (n = 12).
Grade 3/4 AEs occurring in >1 patientAE, n (%)All patients (N = 44)TDM1 3.6 mg/kg q3w + T 80 mg/m2 qw (n = 22)TDM1 3.6 mg/kg q3w + T 80 mg/m2 qw + P 840 mg LD, 420 mg q3w (n = 22)Neutropenia10 (23)6 (27)4 (18)Peripheral neuropathy9 (20)3 (14)6 (27)Fatigue6 (14)3 (14)3 (14)Thrombocytopenia6 (14)5 (23)1 (5)Anemia3 (7)2 (9)1 (5)Abdominal pain2 (5)2 (9)0Decreased hemoglobin2 (5)1 (5)1 (5)Muscosal inflammation2 (5)1 (5)1 (5)Muscular weakness2 (5)02 (9)Nausea2 (5)1 (5)1 (5)Best response,* n (%)CR2 (5)1 (5)1 (5)CR confirmed1 (2)1 (5)0PR27 (61)13 (59)14 (64)PR confirmed8 (18)3 (14)5 (23)SD10 (23)6 (27)4 (18)PD3 (7)1 (5)2 (9)*At any time point with responses ordered CR>PR>SD>PD.
Conclusions
Overall, 50% of pts received ≥12 doses of T within 15 weeks. Adding P to the combination of T-DM1 + T did not appear to increase the incidence of grade 3/4 AEs. Data support further investigation of T-DM1 + T ± P in larger studies in early breast cancer. Final data from all phase 2a patients will be available for the full report.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P4-12-09.
Collapse
Affiliation(s)
- A Elias
- University of Colorado Hospital, Auriora, CO; Memorial Sloan-Kettering Cancer Center, New York, NY; Dana-Farber Cancer Institute, Boston, MA; Stanford Cancer Institute, Palo Alto, CA; Genentech, Inc., South San Francisco, CA; Karmanos Cancer Institute, Detroit, MI
| | - S Modi
- University of Colorado Hospital, Auriora, CO; Memorial Sloan-Kettering Cancer Center, New York, NY; Dana-Farber Cancer Institute, Boston, MA; Stanford Cancer Institute, Palo Alto, CA; Genentech, Inc., South San Francisco, CA; Karmanos Cancer Institute, Detroit, MI
| | - IE Krop
- University of Colorado Hospital, Auriora, CO; Memorial Sloan-Kettering Cancer Center, New York, NY; Dana-Farber Cancer Institute, Boston, MA; Stanford Cancer Institute, Palo Alto, CA; Genentech, Inc., South San Francisco, CA; Karmanos Cancer Institute, Detroit, MI
| | - M Pegram
- University of Colorado Hospital, Auriora, CO; Memorial Sloan-Kettering Cancer Center, New York, NY; Dana-Farber Cancer Institute, Boston, MA; Stanford Cancer Institute, Palo Alto, CA; Genentech, Inc., South San Francisco, CA; Karmanos Cancer Institute, Detroit, MI
| | - D Ipe
- University of Colorado Hospital, Auriora, CO; Memorial Sloan-Kettering Cancer Center, New York, NY; Dana-Farber Cancer Institute, Boston, MA; Stanford Cancer Institute, Palo Alto, CA; Genentech, Inc., South San Francisco, CA; Karmanos Cancer Institute, Detroit, MI
| | - EA Guardino
- University of Colorado Hospital, Auriora, CO; Memorial Sloan-Kettering Cancer Center, New York, NY; Dana-Farber Cancer Institute, Boston, MA; Stanford Cancer Institute, Palo Alto, CA; Genentech, Inc., South San Francisco, CA; Karmanos Cancer Institute, Detroit, MI
| | - B Althaus
- University of Colorado Hospital, Auriora, CO; Memorial Sloan-Kettering Cancer Center, New York, NY; Dana-Farber Cancer Institute, Boston, MA; Stanford Cancer Institute, Palo Alto, CA; Genentech, Inc., South San Francisco, CA; Karmanos Cancer Institute, Detroit, MI
| | - PL LoRusso
- University of Colorado Hospital, Auriora, CO; Memorial Sloan-Kettering Cancer Center, New York, NY; Dana-Farber Cancer Institute, Boston, MA; Stanford Cancer Institute, Palo Alto, CA; Genentech, Inc., South San Francisco, CA; Karmanos Cancer Institute, Detroit, MI
| |
Collapse
|