Phase II randomized, open-label study of YM155 (sepantronium bromide) plus docetaxel versus docetaxel alone as first-line treatment for HER2 negative metastatic breast cancer.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 548-548
Author(s):  
Michael R. Clemens ◽  
Anne Therese Keating ◽  
Oleg Gladkov ◽  
Fei Jie ◽  
Joyce Steinberg ◽  
...  

548 Background: YM155 (YM) is a small molecule survivin suppressant. In a phase I/II study of YM plus docetaxel (D) in solid tumors evidence of anti-tumor activity was observed in women with human epidermal growth factor 2 non-overexpressing (HER2 negative) metastatic breast cancer (mBC). Methods: This was a randomized study of YM plus D versus D as 1st line treatment in subjects with HER2 negative mBC. Eligibility criteria were: ECOG < 1, no prior chemotherapy for mBC, and at least one measurable lesion. Primary endpoint was progression free survival (PFS); secondary endpoints were: objective response rate (ORR), overall survival (OS), duration of response (DOR), clinical benefit rate (CBR), time to response (TTR) and safety. YM was administered at 5 mg/m2/day as a 168 hr continuous infusion followed by 14 Day (d) observation and D was administered at 75 mg/m2over 1 hr on d1 every 21d. In the control arm, D was dosed per investigator choice q 21d. Results: 101 subjects were randomized (50 YM + D; 51 D). Median (m) age 55 (range: 25 – 79), 25% had triple negative disease, > 60% had bone and lymph mets, 86% had prior therapy for BC. mPFS (days) was 251 (95%CI: 176 – 333) YM + D vs 252 (95%CI: 202-433) D (p=0.34). ORR, CBR and TTR (YM+D; D): 26% vs. 25.5%; 82% vs. 84.3% and 45 vs 59 d. OS data are immature but showed no difference (p=0.911). Adverse events [AEs (> 25%)] [YM + D% vs D %]: neutropenia 83 vs 84, alopecia 62.5 vs 53, fatigue 50 vs 41.2, nausea 35.4 vs 41.2, leucopenia 27 vs 33 and dyspnoea 33 vs 14. Common (>10%) serious AEs [YM + D% vs D%]: febrile neutropenia 21 vs 8 and neutropenia 10 vs 8. Conclusions: Preclinical and clinical evidence suggested the combination of YM + D may offer additional benefit to D alone in subjects with mBC. This study showed no difference in efficacy, but the combination appeared to be well tolerated. Clinical trial information: NCT01038804.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 1007-1007 ◽  
Author(s):  
Antonio Llombart-Cussac ◽  
José Manuel Pérez-García ◽  
Meritxell Bellet ◽  
Florence Dalenc ◽  
Miguel J. Gil Gil ◽  
...  

1007 Background: The CDK4/6 inhibitor palbociclib (P) in combination with letrozole (L) has become a standard first-line treatment for patients (pts) with luminal metastatic breast cancer (MBC) (PALOMA-1 & 2 trials). Meanwhile, the anti-estrogen fulvestrant (F) showed to be superior to anastrozole in the same population (FALCON trial). We aimed to identify the best endocrine agent to combine with P in this first-line scenario. Methods: A total of 486 pts with ER[+]/HER2[-] MBC with no prior therapy in the advanced setting and endocrine sensitive criteria (relapse > 12 months [mo] after the end of adjuvant endocrine therapy or diagnosed with “de novo” metastatic disease) were randomly assigned (1:1 ratio) to receive P (oral 125 mg/day [d]; 3 wks on/1 wk off) plus F 500 mg/d (I.M Days 0, 14, 28, and then every 28 d) or PL (oral 2.5 mg/d). Pts were stratified by visceral involvement and type of disease presentation (“de novo”/recurrent). Primary endpoint was investigator-assessed progression-free survival (PFS). Secondary endpoints included overall survival (OS), overall response rate (ORR), clinical benefit rate (CBR), and safety. 254 events were needed with 80% power to detect a hazard ratio (HR) ≤0.7 in favor of PF (2-sided α = 0.05). Results: By March 9th, 2020, 256 PFS events occurred. Pts characteristics were well balanced. Median age was 62 years (range: 25–90), 56.6% were ECOG 0, 40.7% had “de novo” metastatic disease, 48% had visceral disease, and 43.6% with ≥3 organ sites involved. At median follow-up of 32 mo, median PFS was 27.9 mo (95% confidence interval [CI], 24.2-33.1) with PF and 32.8 mo (95% CI, 25.8-35.9) with PL (HR: 1.1; 95% CI, 0.9-1.5; P = 0.321). No differences were observed for pts with or without visceral involvement (HR: 1.3 and HR: 0.97 respectively, interaction P = 0.275), and for “de novo” or recurrent metastatic disease (HR: 1.1 and HR: 1.1 respectively, P = 0.979). The 4-year OS rate was 67.6% in PF and 67.5% in PL arm (HR: 1; 95% CI, 0.7-1.5; P = 0.986). No differences were observed in ORR or CBR between arms. Grade ≥3 adverse events were similar in both arms, being neutropenia and leukopenia the most frequent. No treatment-related deaths were reported. Conclusion: This study was not able to identify an improvement in PFS for PF over PL in patients with endocrine-sensitive ER[+]/HER2[-] MBC. As both arms demonstrated comparable 4 years-OS, PF is a reasonable alternative to PL in this setting. Clinical trial information: NCT02491983 .


2015 ◽  
Vol 33 (6) ◽  
pp. 594-601 ◽  
Author(s):  
Peter A. Kaufman ◽  
Ahmad Awada ◽  
Chris Twelves ◽  
Louise Yelle ◽  
Edith A. Perez ◽  
...  

Purpose This phase III randomized trial (ClinicalTrials.gov identifier: NCT00337103) compared eribulin with capecitabine in patients with locally advanced or metastatic breast cancer (MBC). Patients and Methods Women with MBC who had received prior anthracycline- and taxane-based therapy were randomly assigned to receive eribulin or capecitabine as their first-, second-, or third-line chemotherapy for advanced/metastatic disease. Stratification factors were human epidermal growth factor receptor-2 (HER2) status and geographic region. Coprimary end points were overall survival (OS) and progression-free survival (PFS). Results Median OS times for eribulin (n = 554) and capecitabine (n = 548) were 15.9 and 14.5 months, respectively (hazard ratio [HR], 0.88; 95% CI, 0.77 to 1.00; P = .056). Median PFS times for eribulin and capecitabine were 4.1 and 4.2 months, respectively (HR, 1.08; 95% CI, 0.93 to 1.25; P = .30). Objective response rates were 11.0% for eribulin and 11.5% for capecitabine. Global health status and overall quality-of-life scores over time were similar in the treatment arms. Both treatments had manageable safety profiles consistent with their known adverse effects; most adverse events were grade 1 or 2. Conclusion In this phase III study, eribulin was not shown to be superior to capecitabine with regard to OS or PFS.


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]


2019 ◽  
Vol 15 (34) ◽  
pp. 3935-3944 ◽  
Author(s):  
Sarah S Mougalian ◽  
Bruce A Feinberg ◽  
Edward Wang ◽  
Karenza Alexis ◽  
Debanjana Chatterjee ◽  
...  

Aim: To examine the effectiveness of eribulin mesylate for metastatic breast cancer post cyclin-dependent kinase inhibitor (CDKi) 4/6 therapy. Materials & methods: US community oncologists reviewed charts of patients who had received eriublin from 3 February 2015 to 31 December 2017 after prior CDKi 4/6 therapy and detailed their clinical/treatment history, clinical outcomes (lesion measurements, progression, death) and toxicity. Results: Four patient cohorts were created according to eribulin line of therapy: second line, third line, per US label and fourth line with objective response rates/clinical benefit rates of 42.2%/58.7%, 26.1%/42.3%, 26.7%/54.1% and 17.9%/46.4%, respectively. Median progression-free survival/6-month progression-free survival (79.5% of all patients censored) by cohort was: 9.7 months/77.3%, 10.3 months/71.3%, not reached/70.4% and 4.0 months/0.0%, respectively. Overall occurrence of neutropenia = 23.5%, febrile neutropenia = 1.3%, peripheral neuropathy = 10.1% and diarrhea = 11.1%. Conclusion: Clinical outcome and adverse event rates were similar to those in clinical trials and other observational studies. Longer follow-up is required to confirm these findings.


2020 ◽  
Vol 38 (27) ◽  
pp. 3138-3149 ◽  
Author(s):  
Cristina Saura ◽  
Mafalda Oliveira ◽  
Yin-Hsun Feng ◽  
Ming-Shen Dai ◽  
Shang-Wen Chen ◽  
...  

PURPOSE NALA (ClinicalTrials.gov identifier: NCT01808573 ) is a randomized, active-controlled, phase III trial comparing neratinib, an irreversible pan-HER tyrosine kinase inhibitor (TKI), plus capecitabine (N+C) against lapatinib, a reversible dual TKI, plus capecitabine (L+C) in patients with centrally confirmed HER2-positive, metastatic breast cancer (MBC) with ≥ 2 previous HER2-directed MBC regimens. METHODS Patients, including those with stable, asymptomatic CNS disease, were randomly assigned 1:1 to neratinib (240 mg once every day) plus capecitabine (750 mg/m2 twice a day 14 d/21 d) with loperamide prophylaxis, or to lapatinib (1,250 mg once every day) plus capecitabine (1,000 mg/m2 twice a day 14 d/21 d). Coprimary end points were centrally confirmed progression-free survival (PFS) and overall survival (OS). NALA was considered positive if either primary end point was met (α split between end points). Secondary end points were time to CNS disease intervention, investigator-assessed PFS, objective response rate (ORR), duration of response (DoR), clinical benefit rate, safety, and health-related quality of life (HRQoL). RESULTS A total of 621 patients from 28 countries were randomly assigned (N+C, n = 307; L+C, n = 314). Centrally reviewed PFS was improved with N+C (hazard ratio [HR], 0.76; 95% CI, 0.63 to 0.93; stratified log-rank P = .0059). The OS HR was 0.88 (95% CI, 0.72 to 1.07; P = .2098). Fewer interventions for CNS disease occurred with N+C versus L+C (cumulative incidence, 22.8% v 29.2%; P = .043). ORRs were N+C 32.8% (95% CI, 27.1 to 38.9) and L+C 26.7% (95% CI, 21.5 to 32.4; P = .1201); median DoR was 8.5 versus 5.6 months, respectively (HR, 0.50; 95% CI, 0.33 to 0.74; P = .0004). The most common all-grade adverse events were diarrhea (N+C 83% v L+C 66%) and nausea (53% v 42%). Discontinuation rates and HRQoL were similar between groups. CONCLUSION N+C significantly improved PFS and time to intervention for CNS disease versus L+C. No new N+C safety signals were observed.


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