Efficacy of eribulin in patients (pts) with metastatic breast cancer (MBC): A pooled analysis by HER2 and ER status.

2014 ◽  
Vol 32 (26_suppl) ◽  
pp. 137-137
Author(s):  
Peter Kaufman ◽  
Chris Twelves ◽  
Javier Cortes ◽  
Linda T. Vahdat ◽  
Martin Olivo ◽  
...  

137 Background: Eribulin (E) has been assessed in two phase 3, open-label trials in pts with locally recurrent or MBC progressing after an anthracycline (A) and taxane (T). E significantly increased overall survival (OS) compared with treatment of physician’s choice (TPC) in one study (EMBRACE) and there was a non-significant trend for improved OS with E vs capecitabine (cape) in the other (Study 301). We present an unplanned pooled analysis of these data. Methods: In the EMBRACE trial, women had received 2–5 lines of chemotherapy for advanced disease. In this ≥ 3rd line setting, pts were randomized 2:1 to E mesylate (1.4 mg/m2 iv on days 1 and 8 every 21 days) or TPC. In study 301, pts who had received 0-2 prior chemotherapies for advanced disease were randomized 1:1 to either E (as above) or cape (1.25 g/m2orally b.i.d. days 1–14 every 21 days). We analysed OS by 2-sided stratified log-rank tests and Cox regression in the overall intent-to-treat population and in the HER2-, triple negative (TNBC) and HER2+ subgroups. Results: 1,864 pts (median age 54 yrs) were included; most had been treated in the 2nd (31.5%) or 3rd line (32.7%) MBC settings. Overall, E provided significantly improved OS vs control; this benefit was also significant in HER2− and TNBC, but not HER2+ pts (Table). E improved progression-free survival overall (4.0 vs 3.4 months, HR = 0.90, 95%CI = 0.81, 0.997, p = 0.046), in HER2– (3.7 vs 3.0 months, HR = 0.84, 95%CI = 0.74, 0.95, p = 0.006) and TNBC pts (2.8 vs 2.6 months, HR = 0.78, 95%CI = 0.63, 0.96, p= 0.018). As reported before, the E safety profile was similar in the studies. Conclusions: E significantly improved OS vs standard therapies in MBC pts with HER2− and TNBC in this pooled analysis; in pts with HER2+ disease the difference did not reach statistical significance but numbers were smaller. Clinical trial information: NCT00337103 and NCT00388726. [Table: see text]

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 7634-7634 ◽  
Author(s):  
D. A. Ramies ◽  
A. Sandler ◽  
R. Gray ◽  
B. Giantonio ◽  
J. Brahmer ◽  
...  

7634 Background: Bevacizumab (Bv) has demonstrated significant improvement in overall survival (OS) in randomized trials in first- and second-line (FL and SL) metastatic CRC (mCRC), FL NSCLC, and progression-free survival (PFS) in metastatic breast cancer (mBC). However, in FL metastatic non-squamous NSCLC, OS benefit was less robust in females treated with Bv + chemotherapy (CTx). In order to examine whether there is a gender effect upon efficacy in other trials, an analysis of results from randomized ph II and open-label ph III trials with Bv in mCRC (and a randomized ph II trial in SL NSCLC) was conducted for females. Methods: RR, PFS and OS are summarized for females in the following trials (primary endpoint): 1] ph II FL mCRC (PFS); 2] ph III: FL mCRC (OS); 3] ph III SL mCRC (OS); 4] ph II SL NSCLC (PFS); 5] ph III FL NSCLC (OS). Results: Table 1 presents results of Studies 1 - 5. RR is presented as the difference in RR between Bv and respective control arms. Conclusions: Clinical benefit with Bv + CTx compared to CTx-alone was observed in OS for females in studies which included Bv in treatment of mCRC. OS observed in females in Study 5 (FL NSCLC) is inconsistent with findings in mCRC, mBC and SL NSCLC, and the improvement for PFS and RR for females in Study 5. As such, there is no compelling evidence to suggest lack of benefit with Bv in females. [Table: see text] [Table: see text]


2014 ◽  
Vol 32 (26_suppl) ◽  
pp. 147-147 ◽  
Author(s):  
Peter Kaufman ◽  
Martin Olivo ◽  
Yi He ◽  
Susan McCutcheon ◽  
Linda Vahdat

147 Background: PN is a known adverse effect of various antimicrotubule agents, including eribulin. We report here the incidence and resolution of PN in breast cancer pts treated with eribulin in completed phase 2 and 3 studies, and the efficacy of eribulin in pts with PN in the phase 3 EMBRACE and 301 studies. Methods: In EMBRACE, women had received 2-5 lines of chemotherapy for advanced disease. In this ≥ 3rd-line setting, pts randomized to eribulin mesylate received it at 1.4 mg/m2 iv, days 1 and 8 every 21 days. The dosing schedule was the same in study 301, which involved pts who had received 0-2 prior chemotherapies for advanced disease. Overall survival (OS) and progression-free survival (PFS) were analyzed by stratified log-rank test. Data from EMBRACE and 301 were pooled with data from 2 phase 2 studies to assess time to improvement (a decrease of ≥ 1 grade) and resolution (decrease in grade to 0, 1 or baseline) of grade 3 or 4 PN. Results: In the pooled safety analysis, 7.7% (116/1503) of pts treated with eribulin had grade 3 or 4 PN; 63.8% of these experienced improvement in PN and 50% had resolution. Median time to improvement was 2.1 weeks and to resolution was 7.7 weeks. Characteristics were similar in pts with or without PN in EMBRACE and 301. Those with PN had longer exposure to eribulin vs pts without PN (median exposure [months], study 301: 4.9 vs 3.2; EMBRACE: 4.8 vs 2.9). OS and PFS were significantly longer in pts with PN (Table). Conclusions: Pts who had a favourable therapeutic response to eribulin, received a longer course of treatment and thus had a greater risk of PN. Severity of PN improved in most pts within a short period. Regarding PN, the risk–benefit ratio for eribulin supports treatment. Clinical trial information: NCT00337103, NCT00388726. [Table: see text]


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 1048-1048
Author(s):  
Peter A. Fasching ◽  
Chunling Hu ◽  
Steven Hart ◽  
Andreas D. Hartkopf ◽  
Florin A Taran ◽  
...  

1048 Background: Germline BRCA1/2 ( gBRCA) mutations (mt) are some of the few actionable alterations in mBC patients. The PARP inhibitors olaparib/talazoparib are more effective than chemotherapy (ctx) in patients with a gBRCAmt and HER2 negative(-) mBC. In mBC patients the TNT-study suggested a better progression-free survival (PFS) for g BRCA-mt compared to patients with a gBRCA1/2 wildtype (wt) when treated with platinum and not with a taxane. Otherwise little is known about the prognostic effect of g BRCA1/2mt in mBC patients. Methods: PRAEGNANT (NCT02338167) is a prospective mBC registry with a focus on molecular biomarkers. Patients were eligible for this analysis if their mBC was HER2- and treated with ctx for the first time (referred to as first-line ctx). Hormone receptor (HR) positive patients had to have all hormone therapies exhausted. Mutation frequencies and their association with patient and tumor characteristics were analyzed. Multivariable Cox regression models were built with commonly established prognostic factors and g BRCA mutation status as predictors of PFS and overall survival (OS) from first-line ctx. Results: Out of 2932 PRAEGNANT patients, 576 were HER2- and received first-line ctx. Of those 529 patients with g BRCA genotype results and follow up information could be analyzed. 24 patients (4.5%) had a g BRCAmt (11 BRCA1, 13 BRCA2). Mutation rate in HR positive patients was 3.9% (17/432) and 7.2% (7/97) in HR negative patients. Most patients received ctx either as the first treatment in the metastatic setting or after one line of hormone therapy (n=382; 72.2%). Multivariable Cox regression models showed an adjusted hazard ratio for gBRCAmt vs. gBRCAwt patients of 0.70 (95% CI: 0.43-1.15) for PFS and of 0.41 (95% CI: 0.18-0.93) for OS. Most frequent ctx treatments were taxane (52%) or capecitabine based (21%). Additionally, the prevalence of somatic BRCA1/2 mutations in this population will be presented. Conclusions: In this HER2- mBC population under ctx g BRCA mutation rates were within the expected range of about 5%. Within the analyzed population patients with a g BRCA mutation seemed to have a better OS than patients without a mutation. PFS results pointed in the same direction without statistical significance. However, with only 24 mutations replication of these results in additional cohorts is warranted. Clinical trial information: NCT02338167.


Author(s):  
Kenjiro Aogi ◽  
Kenichi Watanabe ◽  
Masahiro Kitada ◽  
Takashi Sangai ◽  
Shoichiro Ohtani ◽  
...  

Abstract Background Anthracycline (A) or taxane T-based regimens are the standard early-line chemotherapy for metastatic breast cancer (BC). A previous study has shown a survival benefit of eribulin in heavily pretreated advanced/recurrent BC patients. The present study aimed to compare the benefit of eribulin with treatment of physician’s choice (TPC) as first- or second-line chemotherapy for recurrent HER2-negative BC. Methods Patients with recurrent HER2-negative BC previously receiving anthracycline and taxane AT-based chemotherapy in the adjuvant or first-line setting were eligible for this open-label, randomized, parallel-group study. Patients were randomized 1:1 by the minimization method to receive either eribulin (1.4 mg/m2 on day one and eight of each 21-day cycle) or TPC (paclitaxel, docetaxel, nab-paclitaxel or vinorelbine) until disease progression or unacceptable toxicity. The primary endpoint was progression-free survival (PFS). Secondary endpoints included time to treatment failure (TTF), overall response rate (ORR), duration of response, and safety (UMIN000009886). Results Between May 2013 and January 2017, 58 patients were randomized, 57 of whom (26 eribulin and 31 TPC) were analyzed for efficacy. The median PFS was 6.6 months with eribulin versus 4.2 months with TPC (hazard ratio: 0.72 [95% confidence interval (CI), 0.40–1.30], p = 0.276). Median TTF was 6.0 months with eribulin versus 3.6 months with TPC (hazard ratio: 0.66 [95% CI, 0.39–1.14], p = 0.136). Other endpoints were also similar between groups. The most common grade ≥ 3 adverse event was neutropenia (22.2% with eribulin versus 16.1% with TPC). Conclusions Eribulin seemed to improve PFS or TTF compared with TPC without statistical significance. Further validation studies are needed.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 3539-3539
Author(s):  
Ofer Margalit ◽  
William S. Harmsen ◽  
Einat shacham-Shmueli ◽  
Molly Petersen ◽  
Ben Boursi ◽  
...  

3539 Background: Previous studies suggest a possible gender-specific response to Bev in mCRC, showing a benefit in males, while the effect in females is less significant. Therefore, we evaluated response to Bev according to gender. Methods: Data from 3369 mCRC patients enrolled on 4 first-line randomized trials testing Bev (2000-2007) were pooled. Association between gender and progression-free survival (PFS)/overall survival (OS) was evaluated by stratified Cox regression model, adjusted for potential confounders. Predictive value was evaluated by interaction (inter.) effect between gender and treatment. In a pre-planned secondary analysis, analyses were stratified using an age cut-point of 60 years (commonly used in breast cancer trials) to evaluate the possible role of menopausal-related effects. Results: OS was not statistically different between males and females (median OS [mOS], 18.8 vs. 17.6 months [mo], adjusted hazard ratio [HRadj], 0.93, 95% confidence interval [CI], 0.84-1.03, p, 0.15) in the overall population. Bev was associated with an improved mOS in males and females, with a 2.3 and 0.6 mo benefit, respectively, as well as an improved PFS. There was no statistically significant interaction effect between gender and treatment (see table). Further stratified by age (< vs. ≥ 60 years), Bev resulted in improved PFS and OS in both genders, at all ages, except for the effect in young females which did not reach statistical significance (see table). Conclusions: Our results confirmed the mOS benefit from addition of Bev to first-line chemotherapy in mCRC in both genders, although the benefit in females was < 1 month. For females under the age of 60, there are uncertainties for mOS benefit from addition of Bev and further evaluation is needed. [Table: see text]


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 1003-1003 ◽  
Author(s):  
Binghe Xu ◽  
Min Yan ◽  
Fei Ma ◽  
Xi-Chun Hu ◽  
Ji Feng Feng ◽  
...  

1003 Background: Pyrotinib (an irreversible pan-ErbB inhibitor) plus capecitabine showed clinically meaningful benefits and acceptable tolerability in patients (pts) with HER2+ metastatic breast cancer (MBC) in phase 1 and 2 studies. Methods: This open-label, multicenter, randomized phase 3 study enrolled HER2+ MBC pts after trastuzumab and taxanes, and/or anthracyclines. Up to two prior lines of chemotherapy (chemo) for metastatic disease were allowed. Pts were randomly assigned (1:1) to receive pyrotinib 400 mg or lapatinib 1250 mg qd continuously plus capecitabine 1000 mg/m2 bid on days 1–14 of 21-day cycles. The primary endpoint was progression-free survival (PFS) per blinded independent central review. Results: From Jul 2017 to Oct 2018, 267 pts were randomized to the pyrotinib (n=134) or lapatinib (n=133) arm. One pt in the lapatinib arm did not receive study treatment and was excluded from analyses. 42.5% and 34.8% of pts in the pyrotinib and lapatinib arm had no prior chemo for metastatic disease, 41.8% and 49.2% had one prior line, and 15.7% and 15.9% had two lines. At the planned interim analysis, the median PFS was 12.5 months (95% CI 9.7–not reached) with pyrotinib plus capecitabine vs 6.8 months (95% CI 5.4–8.1) with lapatinib plus capecitabine (HR 0.39 [95% CI 0.27–0.56]; P<0.0001), which met the criterion for statistical significance (≤0.0066). Among trastuzumab-resistant pts, prolonged PFS with pyrotinib plus capecitabine was also observed (12.5 months [95% CI 6.9 to not reached] vs 6.9 months [95% CI 5.4 to not reached]; HR 0.60 [95% CI 0.29 to 1.21]). Benefits in objective response rate, clinical benefit rate, and duration of response with pyrotinib plus capecitabine were also indicated (Table). The most common grade ≥3 adverse events were diarrhea (30.6% vs 8.3% in the pyrotinib vs lapatinib arm) and hand-foot syndrome (16.4% vs 15.2%). Conclusions: In pts with HER2+ MBC after trastuzumab and chemo, pyrotinib plus capecitabine achieved a significant better PFS than lapatinib plus capecitabine, with manageable toxicity, verifying the phase 2 findings. Clinical trial information: NCT03080805 . [Table: see text]


Author(s):  
Slavomir Krajnak ◽  
Thomas Decker ◽  
Lukas Schollenberger ◽  
Christian Rosé ◽  
Christian Ruckes ◽  
...  

Abstract Purpose Metronomic chemotherapy (MCT) is an increasingly used treatment option in hormone receptor-positive (HR+)/human epidermal growth factor receptor 2-negative (HER2−) advanced/metastatic breast cancer (MBC) after failure of endocrine-based therapies. Methods VinoMetro was a multicentre, open-label, single-arm, phase II study of metronomic oral vinorelbine (VRL; 30 mg/day) as a first-line chemotherapy (CT) in patients with HR+/HER2− MBC after endocrine failure. The primary endpoint was the clinical benefit rate (CBR) at 24 weeks. Results Between January 2017 and April 2019, nine patients were enrolled. The CBR was 22.2% (90% confidence interval [CI] 4.1–55.0), p = 0.211. The median progression-free survival (PFS) was 12.0 weeks (95% CI 11.3–12.7). Grade 3–4 adverse events (AEs) occurred in 22.2% of patients. One patient died of febrile neutropenia. Conclusion VinoMetro (AGO-B-046) was closed early after nine patients and occurrence of one grade 5 toxicity in agreement with the lead institutional review board (IRB). Metronomic dosing of oral VRL in HR+/HER2− MBC as first-line CT after failure of endocrine therapies showed only limited benefit in this population. Trial registration number and date of registration ClinicalTrials.gov Identifier: NCT03007992; December 15, 2016.


2021 ◽  
Vol 12 ◽  
pp. 204062072110129
Author(s):  
Songyi Park ◽  
Dong-Yeop Shin ◽  
Junshik Hong ◽  
Inho Kim ◽  
Youngil Koh ◽  
...  

Background: High dose melphalan (HDMEL) is considered the standard conditioning regimen for autologous stem cell transplantation (ASCT) in multiple myeloma (MM) patients. Recent studies showed superiority of busulfan plus melphalan (BUMEL) compared to HDMEL as a conditioning regimen. We compared the efficacy of HDMEL and BUMEL in newly diagnosed Asian MM patients, who are often underrepresented. Methods: This is a single-center, retrospective study including MM patients who underwent ASCT after bortezomib-thalidomide-dexamethasone (VTD) triplet induction chemotherapy between January 2015 and August 2019. Result: In the end, 79 patients in the HDMEL group were compared to 31 patients in the BUMEL group. There were no differences between the two groups with regards to sex, age at ASCT, risk group, and stage. The HDMEL group showed better response to pre-transplant VTD compared to BUMEL, but after ASCT the BUMEL group showed better overall response. In terms of progression-free survival (PFS), although BUMEL showed trends towards better PFS regardless of pre-transplant status and age, the difference did not reach statistical significance. The BUMEL group more often experienced mucositis related to chemotherapy, but there was no difference between the two groups with regards to hospitalization days, cell engraftment, and infection rates. Conclusion: BUMEL conditioning deserves attention as the alternative option to HDMEL for newly diagnosed MM patients, even in the era of triplet induction chemotherapy. Specifically, patients achieving very good partial response (VGPR) or better response with triplet induction chemotherapy might benefit the most from BUMEL conditioning. Tailored conditioning regimen, based on patient’s response to induction chemotherapy and co-morbidities, can lead to better treatment outcomes.


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