5058 POSTER Randomized Phase II Multicenter Trial of Oral Antiangiogenic Agent TSU-68 in Combination With Docetaxel Versus Docetaxel Alone in Patients With Metastatic Breast Cancer Previously Treated With an Anthracycline

2011 ◽  
Vol 47 ◽  
pp. S347
Author(s):  
S. Kim ◽  
J.H. Ahn ◽  
J. Ro ◽  
S.A. Im ◽  
Y.H. Im ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Phase Ii ◽  
Metastatic Breast ◽  
Multicenter Trial ◽  
Antiangiogenic Agent ◽  
Randomized Phase Ii ◽  
Previously Treated

WJOG6110B (ELTOP): Randomized phase II trial comparing trastuzumab plus capecitabine (HX) and lapatinib plus capecitabine (LX) in HER2-positive metastatic breast cancer patients previously treated with trastuzumab and taxanes.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. TPS659-TPS659 ◽  
Author(s):  
Toshimi Takano ◽  
Hideharu Kimura ◽  
Kazuto Nishio ◽  
Takeharu Yamanaka ◽  
Yoshinori Ito ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Brain Metastases ◽  
Randomized Trial ◽  
Phase Ii ◽  
Phase Ii Trial ◽  
Metastatic Breast ◽  
Her2 Positive ◽  
Randomized Phase Ii ◽  
Previously Treated

TPS659 Background: In patients with HER2-positive metastatic breast cancer (MBC) previously treated with trastuzumab and taxanes, there are now two standard strategies: trastuzumab beyond progression or switch to lapatinib. A randomized trial comparing trastuzumab plus capecitabine (HX) and capecitabine alone (X) after first-line trastuzumab-based chemotherapy (GBG-26) showed that HX was superior to X in terms of time to progression (TTP). Another randomized trial comparing lapatinib plus capecitabine (LX) and X in patients previously treated with anthracyclines, taxanes, and trastuzumab (EGF100151) showed that LX was superior to X in terms of TTP. To evaluate which strategy is better, we are conducting an open-label, randomized phase II trial comparing HX and LX. Methods: Primary endpoint is progression-free survival, and secondary endpoints are overall response rate, overall survival, proportion of patients progressing brain metastases as site of first progression, and safety. Major eligibility criteria include: (1) HER2-positive MBC, (2) previously treated with taxanes, (3) disease progression or distant relapse while receiving trastuzumab, (4) previously untreated with capecitabine, S-1, and anti-HER2 drugs other than trastuzumab, (5) previously treated with no more than two chemotherapy regimens for MBC, (6) no symptomatic brain metastases (asymptomatic brain metastases are allowed), and (7) baseline left ventricular ejection fraction ≥50%. Patients in the HX arm receive capecitabine 2,500 mg/m2/day on days 1 to 14 plus trastuzumab (8 mg/kg loading dose and 6mg/kg thereafter) on day 1 every 3 weeks. Patients in the LX arm receive capecitabine 2,000 mg/m2/day on days 1 to 14 plus lapatinib 1250 mg/day on days 1 to 21 every 3weeks. Large-scale biomarker analyses are also performed to explore predictive factors of trastuzumab or lapatinib efficacy. We are investigating biomarkers related to HER family and other receptors, PI3K/Akt pathways, ligands, FcγR, circulating tumor cells, and so on. This study has just begun and 7 of planned 170 patients have been enrolled.

Randomized phase II trial of gemcitabine versus gemcitabine and imatinib mesylate in patients with previously treated metastatic breast cancer.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 1091-1091
Author(s):  
Pashna Neville Munshi ◽  
Deborah Toppmeyer ◽  
Serena Tsan-Lai Wong ◽  
Shridar Ganesan ◽  
Katherine Hanna Tkaczuk ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Imatinib Mesylate ◽  
Phase Ii ◽  
Phase Ii Trial ◽  
Metastatic Breast ◽  
Randomized Phase Ii ◽  
Previously Treated ◽  
Group 2 ◽  
Group 1

1091 Background: Gemcitabine (GEM) as a standard 30-min infusion has activity as a single-agent in metastatic breast cancer (mbc). Prolonged infusion of GEM at a fixed dose rate (FDR) of 10 mg/m2/min is associated with greater formation of active metabolite and may result in improved antitumor activity. Imatinib mesylate (IM)-mediated inhibition of PDGFR reduces tumor interstitial fluid pressure allowing for improved chemotherapy penetration into tumors. We evaluated the addition of IM to FDR GEM in patients (pts) with previously treated mbc. Methods: This was a randomized phase II trial in mbc pts who progressed after 1 but no more than 2 prior cytotoxic regimens. Eligibility included measurable disease; no prior GEM or IM exposure. Group 1 received FDR GEM IV 1250 mg/m2 at 10 mg/m2/min (over 120 min) on days 3 and 10 every 21 days; Group 2 received the same FDR GEM dose and schedule plus IM 400 mg orally daily on days 1-5 and 8-12 every 21 days. Primary endpoint was time to progression (TTP). Sample size of 40 pts per group was needed to detect an 8 mo increase in TTP with the combination (80% power, α = .05, 2-sided). Secondary endpoints included ORR and safety. Results: Between 5/2006-4/2011, 44 pts were randomized (22 per group). Study closed early due to slow accrual. Median age 54 (31-75); median ECOG PS 1 (0-2); 52% were hormone receptor-positive and HER2-negative; 27% triple-negative, and 20% HER2-positive. Median number of cycles was 2 in Group 1 (range 1-12) and 3.5 in Group 2 (range 1-13). Most common adverse events (%) of any grade, Group 1 vs Group 2 were neutropenia (68 vs. 78), anemia (48 vs. 65), thrombocytopenia (24 vs. 47), nausea (40 vs. 52) and vomiting (24 vs. 21). One gr 4 thrombotic thrombocytopenic purpura occurred in Group 2. Median TTP were 2 mo (95% CI: 1-5 mo) in Group 1 and 2.5 mo (95% CI: 1-5 mo) in Group 2 (p = 0.3 log rank test). ORR was 9.1% in each group (95% CI: 1.6-30.6%), with 2 PRs in each group. Stable disease (≥ 3 mo) was 32% in Group 1 and 41% in Group 2. Conclusions: This study was underpowered to draw any conclusion regarding a difference in TTP between the two groups at the time it was prematurely closed. Combination of IM and FDR GEM showed a trend to increased toxicity compared to FDR GEM alone. Clinical trial information: NCT00323063.

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