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Emtansine

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https://www.readbyqxmd.com/read/28526538/trastuzumab-emtansine-versus-treatment-of-physician-s-choice-in-patients-with-previously-treated-her2-positive-metastatic-breast-cancer-th3resa-final-overall-survival-results-from-a-randomised-open-label-phase-3-trial
#1
Ian E Krop, Sung-Bae Kim, Antonio Gonzalez Martin, Patricia M LoRusso, Jean-Marc Ferrero, Tanja Badovinac-Crnjevic, Silke Hoersch, Melanie Smitt, Hans Wildiers
BACKGROUND: In the randomised, parallel assignment, open-label, phase 3 TH3RESA study, progression-free survival was significantly longer with trastuzumab emtansine versus treatment of physician's choice in previously treated patients with HER2-positive advanced breast cancer. We report results from the final overall survival analysis of the TH3RESA trial. METHODS: Eligible patients for the TH3RESA trial were men and women (aged ≥18 years) with centrally confirmed HER2-positive advanced breast cancer previously treated with both trastuzumab and lapatinib (advanced setting) and a taxane (any setting) and with progression on two or more HER2-directed regimens in the advanced setting...
May 16, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28526537/trastuzumab-emtansine-in-her2-positive-metastatic-breast-cancer
#2
Filippo Montemurro
No abstract text is available yet for this article.
May 16, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28526536/trastuzumab-emtansine-versus-capecitabine-plus-lapatinib-in-patients-with-previously-treated-her2-positive-advanced-breast-cancer-emilia-a-descriptive-analysis-of-final-overall-survival-results-from-a-randomised-open-label-phase-3-trial
#3
Véronique Diéras, David Miles, Sunil Verma, Mark Pegram, Manfred Welslau, José Baselga, Ian E Krop, Kim Blackwell, Silke Hoersch, Jin Xu, Marjorie Green, Luca Gianni
BACKGROUND: The antibody-drug conjugate trastuzumab emtansine is indicated for the treatment of patients with HER2-positive metastatic breast cancer previously treated with trastuzumab and a taxane. Approval of this drug was based on progression-free survival and interim overall survival data from the phase 3 EMILIA study. In this report, we present a descriptive analysis of the final overall survival data from that trial. METHODS: EMILIA was a randomised, international, open-label, phase 3 study of men and women aged 18 years or older with HER2-positive unresectable, locally advanced or metastatic breast cancer previously treated with trastuzumab and a taxane...
May 16, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28526406/trastuzumab-emtansine-suppresses-the-growth-of-her2-positive-small-cell-lung-cancer-in-preclinical-models
#4
Osamu Morimura, Toshiyuki Minami, Takashi Kijima, Shohei Koyama, Tomoyuki Otsuka, Yuhei Kinehara, Akio Osa, Masayoshi Higashiguchi, Kotaro Miyake, Izumi Nagatomo, Haruhiko Hirata, Kota Iwahori, Takayuki Takimoto, Yoshito Takeda, Hiroshi Kida, Atsushi Kumanogoh
Overcoming chemoresistance is essential for achieving better prognoses in SCLC. Previously, we reported that HER2 is upregulated when HER2-positive SCLC cells acquire chemoresistance. HER2-upregulated cisplatin- or etoposide-resistant SCLC cells were sensitive to trastuzumab-mediated ADCC. However, irinotecan-resistant SCLC cells, such as SBC-3/SN-38, were refractory to trastuzumab despite high HER2 expression. To address this issue, we examined the antitumor efficacy of trastuzumab emtansine (T-DM1) on trastuzumab-resistant HER2-positive SCLC...
May 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28493046/trastuzumab-uptake-and-its-relation-to-efficacy-in-an-animal-model-of-her2-positive-breast-cancer-brain-metastasis
#5
Gail D Lewis Phillips, Merry C Nishimura, Jennifer Arca Lacap, Samir Kharbanda, Elaine Mai, Janet Tien, Kimberly Malesky, Simon P Williams, Jan Marik, Heidi S Phillips
PURPOSE: The extent to which efficacy of the HER2 antibody Trastuzumab in brain metastases is limited by access of antibody to brain lesions remains a question of significant clinical importance. We investigated the uptake and distribution of trastuzumab in brain and mammary fat pad grafts of HER2-positive breast cancer to evaluate the relationship of these parameters to the anti-tumor activity of trastuzumab and trastuzumab emtansine (T-DM1). METHODS: Mouse transgenic breast tumor cells expressing human HER2 (Fo2-1282 or Fo5) were used to establish intracranial and orthotopic tumors...
May 10, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28473206/syd985-a-novel-duocarmycin-based-her2-targeting-antibody-drug-conjugate-shows-promising-antitumor-activity-in-epithelial-ovarian-carcinoma-with-her2-neu-expression
#6
Gulden Menderes, Elena Bonazzoli, Stefania Bellone, Jonathan Black, Gary Altwerger, Alice Masserdotti, Francesca Pettinella, Luca Zammataro, Natalia Buza, Pei Hui, Serena Wong, Babak Litkouhi, Elena Ratner, Dan-Arin Silasi, Gloria S Huang, Masoud Azodi, Peter E Schwartz, Alessandro D Santin
BACKGROUND: Epithelial ovarian cancer (EOC) is an aggressive and heterogeneous disease. <10% of EOC demonstrate HER2/neu 3+ receptor over-expression. However, moderate to low (i.e., 2+ and 1+) HER2/neu expression is reported in up to 50% of EOC. The objective of this study was to compare the anti-tumor activity of SYD985, a novel HER2-targeting antibody-drug conjugate (ADC), to trastuzumab emtansine (T-DM1) in EOC models with differential HER2/neu expression. METHODS: The cytotoxicity of SYD985 and T-DM1 was evaluated using ten primary EOC cell lines with 0/1+, 2+, and 3+ HER2/neu expression in antibody-dependent cellular cytotoxicity (ADCC), proliferation, viability and bystander killing experiments...
May 1, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28438884/safety-evaluation-of-trastuzumab-emtansine-in-japanese-patients-with-her2-positive-advanced-breast-cancer
#7
Junichiro Watanabe, Yoshinori Ito, Toshiaki Saeki, Norikazu Masuda, Toshimi Takano, Shintaro Takao, Kazuhiko Nakagami, Koichiro Tsugawa, Shintaro Nakagawa, Kazumitsu Kanatani, Takahiro Nakayama
BACKGROUND/AIM: Tolerability and safety of trastuzumab emtansine (T-DM1) was investigated in Japanese patients with HER2-positive advanced breast cancer who were previously treated with chemotherapy and trastuzumab. PATIENTS AND METHODS: Patients with inoperable or recurrent breast cancer who were previously treated with chemotherapy and trastuzumab in adjuvant and/or metastatic disease were included. T-DM1 3.6 mg/kg was administered intravenously every 21 days...
May 2017: In Vivo
https://www.readbyqxmd.com/read/28415567/efficacy-and-safety-of-t-dm1-in-the-common-practice-of-her2-advanced-breast-cancer-setting-a-multicenter-study
#8
Alessandra Fabi, Michelino De Laurentiis, Michele Caruso, Enrichetta Valle, Luca Moscetti, Daniele Santini, Katia Cannita, Luisa Carbognin, Mariangela Ciccarese, Rosalba Rossello, Grazia Arpino, Vita Leonardi, Filippo Montemurro, Nicla La Verde, Daniele Generali, Alberto Zambelli, Giuseppa Scandurra, Michelangelo Russillo, Ida Paris, Anna Maria D'Ottavio, Gianfranco Filippelli, Marianna Giampaglia, Simonetta Stani, Agnese Fabbri, Daniele Alesini, Daniela Cianniello, Diana Giannarelli, Francesco Cognetti
Ado-trastuzumab emtansine (T-DM1) is an antibody-drug conjugate approved for the treatment of patients with human epidermal growth factor receptor 2 (HER2)-positive, metastatic breast cancer (mBC). The aim of this 'field-practice' study was to investigate the efficacy and safety of T-DM1, focusing on treatment line, previous lapatinib treatment and patterns of metastasis. Three hundred and three patients with HER2-positive mBC who received T-DM1 were identified by reviewing the medical records of 24 Italian Institutions...
March 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28402624/near-infrared-photochemoimmunotherapy-by-photoactivatable-bifunctional-antibody-drug-conjugates-targeting-human-epidermal-growth-factor-receptor-2-positive-cancer
#9
Kimihiro Ito, Makoto Mitsunaga, Takashi Nishimura, Masayuki Saruta, Takeo Iwamoto, Hisataka Kobayashi, Hisao Tajiri
Near-infrared photoimmunotherapy (NIR-PIT) is a new class of molecular targeted cancer therapy based on antibody-photoabsorber conjugates and NIR light irradiation. Recent studies have shown effective tumor control, including that of human epidermal growth factor receptor 2 (HER2)-positive cancer, by selective molecular targeting with NIR-PIT. However, the depth of NIR light penetration limits its use. Trastuzumab emtansine (T-DM1) is an antibody-drug conjugate consisting of the monoclonal antibody trastuzumab linked to the cytotoxic agent maytansinoid DM1...
April 26, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28388844/effects-of-drug-antibody-ratio-on-pharmacokinetics-biodistribution-efficacy-and-tolerability-of-antibody-maytansinoid-conjugates
#10
Xiuxia Sun, Jose F Ponte, Nicholas C Yoder, Rassol Laleau, Jennifer Coccia, Leanne Lanieri, Qifeng Qiu, Rui Wu, Erica Hong, Megan Bogalhas, Lintao Wang, Ling Dong, Yulius Setiady, Erin K Maloney, Olga Ab, Xiaoyan Zhang, Jan Pinkas, Thomas A Keating, Ravi Chari, Hans K Erickson, John M Lambert
Antibody-drug conjugates (ADCs) are being actively pursued as a treatment option for cancer following the regulatory approval of brentuximab vedotin (Adcetris) and ado-trastuzumab emtansine (Kadcyla). ADCs consist of a cytotoxic agent conjugated to a targeting antibody through a linker. The two approved ADCs (and most ADCs now in the clinic that use a microtubule disrupting agent as the payload) are heterogeneous conjugates with an average drug-to-antibody ratio (DAR) of 3-4 (potentially ranging from 0 to 8 for individual species)...
April 13, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28374319/application-of-a-pk-pd-modeling-and-simulation-based-strategy-for-clinical-translation-of-antibody-drug-conjugates-a-case-study-with-trastuzumab-emtansine-t-dm1
#11
Aman P Singh, Dhaval K Shah
Successful clinical translation of antibody-drug conjugates (ADCs) can be challenging due to complex pharmacokinetics and differences between preclinical and clinical tumors. To facilitate this translation, we have developed a general pharmacokinetic-pharmacodynamic (PK-PD) modeling and simulation (M&S)-based strategy for ADCs. Here we present the validation of this strategy using T-DM1 as a case study. A previously developed preclinical tumor disposition model for T-DM1 (Singh and Shah, AAPSJ. 2015; 18(4):861-875) was used to develop a PK-PD model that can characterize in vivo efficacy of T-DM1 in preclinical tumor models...
April 3, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28361465/antibody-drug-conjugates-adcs-for-personalized-treatment-of-solid-tumors-a-review
#12
REVIEW
John M Lambert, Charles Q Morris
Attaching a cytotoxic "payload" to an antibody to form an antibody-drug conjugate (ADC) provides a mechanism for selective delivery of the cytotoxic agent to cancer cells via the specific binding of the antibody to cancer-selective cell surface molecules. The first ADC to receive marketing authorization was gemtuzumab ozogamicin, which comprises an anti-CD33 antibody conjugated to a highly potent DNA-targeting antibiotic, calicheamicin, approved in 2000 for treating acute myeloid leukemia. It was withdrawn from the US market in 2010 following an unsuccessful confirmatory trial...
March 30, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28343975/trastuzumab-emtansine-versus-taxane-use-for-previously-treated-her2-positive-locally-advanced-or-metastatic-gastric-or-gastro-oesophageal-junction-adenocarcinoma-gatsby-an-international-randomised-open-label-adaptive-phase-2-3-study
#13
Peter C Thuss-Patience, Manish A Shah, Atsushi Ohtsu, Eric Van Cutsem, Jaffer A Ajani, Hugo Castro, Wasat Mansoor, Hyun Cheol Chung, Gyorgy Bodoky, Kohei Shitara, Gail D Lewis Phillips, Tina van der Horst, Marie-Laurence Harle-Yge, Betsy L Althaus, Yoon-Koo Kang
BACKGROUND: Although trastuzumab plus chemotherapy is the standard of care for first-line treatment of HER2-positive advanced gastric cancer, there is no established therapy in the second-line setting. In GATSBY, we examined the efficacy and tolerability of trastuzumab emtansine in patients previously treated for HER2-positive advanced gastric cancer (unresectable, locally advanced, or metastatic gastric cancer, including adenocarcinoma of the gastro-oesophageal junction). METHODS: This is the final analysis from GATSBY, a randomised, open-label, adaptive, phase 2/3 study, done at 107 centres (28 countries worldwide)...
May 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28325631/new-concepts-of-personalized-therapy-in-salivary-gland-carcinomas
#14
REVIEW
Gunter Keller, Diana Steinmann, Alexander Quaas, Viktor Grünwald, Stefan Janssen, Kais Hussein
Salivary gland carcinomas are rare tumours and therapy strategies are less standardized than in lung, gastric or breast cancer. Therapy is based on surgery, but not all carcinomas are completely resectable, e.g. because carcinomas often show infiltration of nerves. For further therapy decision pathology is recommended, but evaluation of potential targets for personalized therapy is not part of the routine panel. Many salivary gland carcinomas can be resistant to radio- and/or chemotherapy, which limits therapeutic options...
May 2017: Oral Oncology
https://www.readbyqxmd.com/read/28303026/strategies-and-challenges-for-the-next-generation-of-antibody-drug-conjugates
#15
REVIEW
Alain Beck, Liliane Goetsch, Charles Dumontet, Nathalie Corvaïa
Antibody-drug conjugates (ADCs) are one of the fastest growing classes of oncology therapeutics. After half a century of research, the approvals of brentuximab vedotin (in 2011) and trastuzumab emtansine (in 2013) have paved the way for ongoing clinical trials that are evaluating more than 60 further ADC candidates. The limited success of first-generation ADCs (developed in the early 2000s) informed strategies to bring second-generation ADCs to the market, which have higher levels of cytotoxic drug conjugation, lower levels of naked antibodies and more-stable linkers between the drug and the antibody...
May 2017: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/28259011/clinical-use-of-biomarkers-in-breast-cancer-updated-guidelines-from-the-european-group-on-tumor-markers-egtm
#16
REVIEW
M J Duffy, N Harbeck, M Nap, R Molina, A Nicolini, E Senkus, F Cardoso
Biomarkers play an essential role in the management of patients with invasive breast cancer. For selecting patients likely to respond to endocrine therapy, both oestrogen receptors (ERs) and progesterone receptors (PRs) should be measured on all newly diagnosed invasive breast cancers. On the other hand, for selecting likely response to all forms of anti-HER2 therapy (trastuzumab, pertuzumab, lapatinib or ado-trastuzumab emtansine), determination of HER2 expression or gene copy number is mandatory. Where feasible, measurement of ER, PR and HER2 should be performed on recurrent lesions and the primary invasive tumour...
April 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28236776/evolving-landscape-of-human-epidermal-growth-factor-receptor-2-positive-breast-cancer-treatment-and-the-future-of-biosimilars
#17
REVIEW
Christian Jackisch, Philip Lammers, Ira Jacobs
Human epidermal growth factor receptor 2-positive (HER2+) breast cancer comprises approximately 15%-20% of all breast cancers and is associated with a poor prognosis. The introduction of anti-HER2 therapy has significantly improved clinical outcomes for patients with HER2+ breast cancer, and multiple HER2-directed agents (ie, trastuzumab, pertuzumab, lapatinib, and ado-trastuzumab emtansine [T-DM1]) are approved for clinical use in various settings. The treatment landscape for patients with HER2+ breast cancer is continuing to evolve...
April 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28229982/circulating-free-dna-mutation-associated-with-response-of-targeted-therapy-in-human-epidermal-growth-factor-receptor-2-positive-metastatic-breast-cancer
#18
Qing Ye, Fan Qi, Li Bian, Shao-Hua Zhang, Tao Wang, Ze-Fei Jiang
BACKGROUND: The addition of anti-human epidermal growth factor receptor 2 (HER2)-targeted drugs, such as trastuzumab, lapatinib, and trastuzumab emtansine (T-DM1), to chemotherapy significantly improved prognosis of HER2-positive breast cancer patients. However, it was confused that metastatic patients vary in the response of targeted drug. Therefore, methods of accurately predicting drug response were really needed. To overcome the spatial and temporal limitations of biopsies, we aimed to develop a more sensitive and less invasive method of detecting mutations associated with anti-HER2 therapeutic response through circulating-free DNA (cfDNA)...
March 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28228709/targeted-therapies-in-her2-overexpressing-metastatic-breast-cancer
#19
REVIEW
Soumaya Labidi, Nesrine Mejri, Aymen Lagha, Nouha Daoud, Houda El Benna, Mehdi Afrit, Hamouda Boussen
Human epidermal growth factor receptor-2 (HER2) is amplified in 25-30% of breast cancers and is associated with aggressive disease and poorer survival. Multiple anti-HER2 targeted therapies have dramatically changed management and outcome of this subgroup, both in adjuvant and metastatic settings. Despite the improvement of survival thanks to trastuzumab, unclear mechanisms of resistance occur, which has led to the development of new anti-HER2 therapies such as lapatinib, pertuzumab, and trastuzumab emtansine (T-DM1)...
December 2016: Breast Care
https://www.readbyqxmd.com/read/28133215/-long-term-survival-of-a-patient-with-stage-iv-breast-cancer-and-an-intrathoracic-space-occupying-metastatic-lesion
#20
Toshimori Koh, Tomohito Sakai, Shunji Kato, Shoji Hirajima, Minoru Nishio, Koji Soga, Atsushi Oguro, Noboru Nakagawa
A 50-year old woman noticed left axillary lymph node swelling and presented at our hospital. CNB showed adenocarcinoma( pap-tub, ER+, PgR+, HER2 3+). CT revealed a right lung metastatic nodule and swollen lymph nodes above the left collarbone and left axilla. However, no breast tumor was found at that time. We diagnosed occult breast cancer, TxN3bM1 (lung), Stage IV . FEC(100), paclitaxel, letrozole, anastrozole, exemestane plus trastuzumab, tegafur/uracil plus trastuzumab, and lapatinib plus capecitabine were sequentially administered...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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