Search results for "lapatinib"
showing 8 items of 18 documents
Lapatinib in combination with ECF/x in EGFR1 positive first-line metastatic gastric cancer (GC): A phase II randomized placebo controlled trial (EORT…
2012
TPS4140 Background: Survival of HER2+ metastatic GC is prolonged by trastuzumab when administered with CF/X (VanCutsem, ASCO 2009). Lapatinib inhibits both EGFR1 and HER2, is active in HER2+ GC lines, and has shown clinical activity in uncontrolled phase II GC trials. A phase III trial of lapatinib with X + oxaliplatin in HER2+ (FISH) GC is closed to recruitment. Additional unaddressed questions include the efficacy and safety of lapatinib with ECF/X (epirubicin + cisplatin + 5-FU or capecitabine (X), which is a preferred chemotherapy (CT) regimen in GC), and its activity in patients (pts) with discordant FISH or IHC HER2 status or EGFR1+. Methods: This is a phase II, randomized, double- b…
PANHER study: a 20-year treatment outcome analysis from a multicentre observational study of HER2-positive advanced breast cancer patients from the r…
2021
Background: The evolution of therapeutic landscape of human epidermal growth factor receptor-2 (HER2)-positive breast cancer (BC) has led to an unprecedented outcome improvement, even if the optimal sequence strategy is still debated. To address this issue and to provide a picture of the advancement of anti-HER2 treatments, we performed a large, multicenter, retrospective study of HER2-positive BC patients. Methods: The observational PANHER study included 1,328 HER2-positive advanced BC patients treated with HER2 blocking agents since June 2000 throughout July 2020. Endpoints of efficacy were progression-free survival (PFS) and overall survival (OS). Results: Patients who received a first-l…
How to Develop Molecular Targeted Drugs in Gastric Cancer: First or Second Line?
2013
The inclusion of new targeted drugs into treatment strategies of advanced or metastatic esophagogastric cancers (AGC) shows great promise, particularly with validated predictive biomarkers. The majority of agents already tested or in current phase III trials are targeting the epidermal growth factor receptor family (EGFR1/ HER2) or angiogenesis inhibitors. Against HER2, only trastuzumab (T) combined with first-line chemotherapy significantly improved overall survival (OS) in patients with HER2-overexpressing (HER+) tumors (ToGA). Despite first positive signals, the dual tyrosine kinase inhibitor (TKI) of HER2 and EGFR1 lapatinib did not reach primary endpoints in HER2+ tumors in first- and …
Impressive Objective Response to Nab-Paclitaxel plus Trastuzumab as Fifth Line Therapy in an Elderly HER-2 Positive Breast Cancer Patient
2017
Background: Agent targeting HER-2 pathway plus chemotherapy has represented a major progress in the management of patients with breast cancer. However, the role of late-line treatment in heavily pretreated patients is still largely unclear. In the last decade, nab-paclitaxel has shown significant activity and good toxicity profile in metastatic breast cancer. Case Presentation: We report the case of a 76-year-old Caucasian woman with metastatic HER-2 positive ductal infiltrating breast carcinoma treated with a combination of weekly nab-paclitaxel and trastuzumab as fifth-line therapy. She had previously received first-line paclitaxel and trastuzumab, second-line vinorelbine and trastuzumab,…
HER2-positive male breast cancer: an update.
2010
Laura Ottini1, Carlo Capalbo2, Piera Rizzolo1, Valentina Silvestri1, Giuseppe Bronte3, Sergio Rizzo3, Antonio Russo31Department of Experimental Medicine, “Sapienza” University of Rome, Rome, Italy; 2Medical Oncology, IDI-IRCCS, Rome, Italy; 3Department of Surgical and Oncological Sciences, Section of Medical Oncology, University of Palermo, Palermo, ItalyAbstract: Although rare, male breast cancer (MBC) remains a substantial cause for morbidity and mortality in men. Based on age frequency distribution, age-specific incidence rate pattern, and prognostic factor profiles, MBC is considered similar to postmenopausal breast cancer (BC). Compared with female BC (FBC), MBC cas…
miR-205-5p-mediated downregulation of ErbB/HER receptors in breast cancer stem cells results in targeted therapy resistance
2015
AbstractThe ErbB tyrosine kinase receptor family has been shown to have an important role in tumorigenesis, and the expression of its receptor members is frequently deregulated in many types of solid tumors. Various drugs targeting these receptors have been approved for cancer treatment. Particularly, in breast cancer, anti-Her2/EGFR molecules represent the standard therapy for Her2-positive malignancies. However, in a number of cases, the tumor relapses or progresses thus suggesting that not all cancer cells have been targeted. One possibility is that a subset of cells capable of regenerating the tumor, such as cancer stem cells (CSCs), may not respond to these therapeutic agents. Accumula…
Lapatiniba protolītisko īpašību izpēte un sāļu iegūšana
2016
Maģistra darba ietvaros veikta lapatiniba potenciometriskā titrēšana neūdens vidē, izmantojot divas šķīdinātāju sistēmas: N,N-dimetilformamīda un ūdens maisījums; metanola, acetonitrila, 1,4 dioksāna un ūdens maisījums. Protonēšanās konstante ūdens vidē noteikta, izmantojot Yasuda Shedlovsky ekstrapolāciju. Veikta lapatiniba sāļu sintēze, izmantojot sālsskābi, p-toluolsulfonskābi, citronskābi, maleīnskābi, vīnskābi, skābeņskābi. Iegūtie produkti analizēti, izmantojot pulvera rentgendifraktometriju, diferenciāli termisko analīzi un kodolmagnētiskās rezonanses spektroskopiju. Atsevišķiem paraugiem pārbaudīta stabilitāte paaugstināta gaisa relatīvā mitruma apstākļos.
Lapatinib activity in a patient with encephalic metastases from trastuzumab-resistant her-2 positive breast cancer
2020
A 42-year-old woman with right breast cancer cT4dN2M0 HR +, HER2 +, undergoes mastectomy with axillary lymphadenectomy after neoadjuvant chemotherapy. During adjuvant treatment with trastuzumab and hormone therapy, the patient develops multiple symptomatic encephalic metastases. She undergoes panencephalic radiotherapy and begins chemotherapy with capecitabine and lapatinib. After three months of well tolerated therapy, an important volumetric response of encephalic metastases is observed, with regression of neurological symptoms.