The co-administration of pertuzumab (P) and trastuzumab (T) as a single infusion, followed by vinorelbine (V), in first-line (1L) treatment of HER2-positive locally advanced or metastatic breast cancer (MBC) patients (pts): VELVET study interim analysis.

2015 ◽  
Vol 33 (15_suppl) ◽  
pp. 586-586 ◽  
Author(s):  
Michael Andersson ◽  
José Manuel López-Vega ◽  
Thierry Petit ◽  
Claudio Zamagni ◽  
Margarita Donica ◽  
...  
2010 ◽  
Vol 28 (6) ◽  
pp. 976-983 ◽  
Author(s):  
Andrew M. Wardley ◽  
Xavier Pivot ◽  
Flavia Morales-Vasquez ◽  
Luis M. Zetina ◽  
Maria de Fátima Dias Gaui ◽  
...  

PurposeTo evaluate trastuzumab (H) and docetaxel (T) with or without capecitabine (X) as first-line combination therapy for human epidermal growth factor receptor 2 (HER2) -positive advanced breast cancer.Patients and MethodsPatients with HER2-positive locally advanced or metastatic breast cancer were randomly assigned to H (8 mg/kg loading; 6 mg/kg every 3 weeks) plus T (75 mg/m2in HTX arm, 100 mg/m2in HT arm, every 3 weeks) with or without X (950 mg/m2twice per day on days 1 to 14 every 3 weeks). The primary end point was overall response rate (ORR).ResultsIn 222 patients, median follow-up was approximately 24 months. ORR was high with both regimens (70.5% with HTX; 72.7% with HT; P = .717); complete response rate was 23.2% with HTX compared with 16.4% with HT. HTX demonstrated significantly longer progression-free survival: median 17.9 months compared with 12.8 months with HT (hazard ratio, 0.72; P = .045), which translates to a gain of around 5 months. Two-year survival probability was 75% with HTX compared with 66% with HT. Febrile neutropenia (27% v 15%) and grade 3/4 neutropenia (77% v 54%) incidences were higher with HT than HTX. Treatment-related grade 3 hand-foot syndrome (17% v < 1%) and grade 3/4 diarrhea (11% v 4%) occurred more commonly with HTX than HT. One case of congestive heart failure occurred in each arm.ConclusionHTX is an effective and feasible first-line therapy for HER2-positive locally advanced or metastatic breast cancer, although it should be reserved for patients with good performance status who are not receiving long-term steroids.


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 1094-1094 ◽  
Author(s):  
T. Bachelot ◽  
L. Mauriac ◽  
C. Delcambre ◽  
P. Maillart ◽  
C. Veyret ◽  
...  

1094 Background: There is increasing evidence that women with HER2-positive metastatic breast cancer (MBC) benefit from continued trastuzumab (H) therapy beyond disease progression (PD). In a Phase II multicentre 2-step trial we evaluated women for their response to second-line treatment with H + vinorelbine (N) following PD after receiving first-line H + taxane for HER2-positive MBC. Methods: Women aged =18 years with HER2-positive MBC received H (8 mg/kg loading dose followed by 6 mg/kg q3w or 4 mg/kg loading dose followed by 2 mg/kg qw) + N (30 mg/m2 days 1 and 8 q3w) until PD. The primary end point was overall response rate (ORR); secondary end points included time to progression, time to treatment failure, overall survival and safety. Data from a planned interim analysis are presented. Results: Seventeen out of a planned 50 patients (pts) were enrolled between June 2003 and October 2006, with a mean age of 54 years (range 42–70). Nine pts had hormone receptor-positive disease at baseline and 17 pts had HER2-positive disease (16 pts IHC 3+; 1 pt IHC 2+ and CISH+). Pts had previously received H in combination with paclitaxel (9 pts) or docetaxel (8 pts) as first-line therapy for MBC. Pts received a median of 6 treatment cycles with H + N (range 2–14), with 2 pts receiving H q3w and 15 pts receiving H qw. ORR was 29%, with 2 pts showing a complete response, 3 pts experiencing a partial response and 4 pts achieving stable disease lasting 6 months. Eight pts experienced PD. Re-treatment with H + N was well tolerated beyond PD, with grade 3/4 haematological toxicities being the most common serious adverse events, leading to a delay and dose reduction of N. No relevant cardiac toxicities were reported, with only 2 grade 1 cardiac events. All pts withdrew, 14 due to PD. Conclusions: This interim analysis indicates that treatment with Herceptin plus chemotherapy beyond PD is active (ORR 29%) and well tolerated, and provides further evidence that re-treatment with H is a promising therapeutic option. Pt accrual is ongoing and updated results will be presented. No significant financial relationships to disclose.


2014 ◽  
Vol 32 (14) ◽  
pp. 1437-1444 ◽  
Author(s):  
Kathy D. Miller ◽  
Véronique Diéras ◽  
Nadia Harbeck ◽  
Fabrice Andre ◽  
Reshma L. Mahtani ◽  
...  

Purpose Our phase IIa study characterized the safety and efficacy of two human epidermal growth factor receptor 2 (HER2) –targeted agents, trastuzumab emtansine (T-DM1) and pertuzumab, in patients with HER2-positive metastatic breast cancer (MBC). Patients and Methods Patients with HER2-positive locally advanced breast cancer or MBC were treated with 3.6 mg/kg T-DM1 plus pertuzumab (840-mg loading dose, then 420 mg subsequently) once every 3 weeks. The primary efficacy end point was investigator-assessed objective response rate (ORR). Results Sixty-four patients (43 patients in the second-line or greater setting [advanced MBC]; 21 patients in the first-line setting [first-line MBC]) were enrolled. Patients with advanced MBC had received trastuzumab and a median of six prior nonhormonal treatments for MBC; 86% of first-line MBC patients had received trastuzumab in the (neo)adjuvant setting. The ORR was 41% overall, 33% in patients with advanced MBC, and 57% in first-line patients. Median progression-free survival was 6.6, 5.5, and 7.7 months, respectively. The most common adverse events were fatigue (61%), nausea (50%), and diarrhea (39%). The most frequent grade ≥ 3 adverse events were thrombocytopenia (13%), fatigue (11%), and liver enzyme elevations (increased ALT: 9%; increased AST: 9%). One patient had left ventricular ejection fraction of less than 40% after study drug discontinuation. Exploratory biomarker analyses demonstrated that patients with above-median tumor HER2 mRNA levels had a numerically higher ORR than patients with below-median levels (44% v 33%, respectively). Conclusion T-DM1 and pertuzumab can be combined at full doses with no unexpected toxicities. The preliminary efficacy in patients in the first-line and advanced MBC settings warrants further investigation.


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