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Shirin Haghighi, Sima Noorali, Amir Houshang Mohammad Alizadeh
Cronkhite-Canada syndrome is characterized by gastrointestinal and ectodermal manifestations. In this paper, we describe a 64-year-old Iranian male, presenting with Cronkhite-Canada syndrome with metastatic colon cancer. The patient was suffering from hair loss, which occurred on the scalp at first and then, during 5 months, extended to the whole body. After that, his sense of taste was impaired, and 2 months later, gastrointestinal symptoms gradually started, with weight loss of 20 kg over 2 months with an initial weight of 100 kg...
January 2018: Case Reports in Gastroenterology
Xiuhua Kang, Li Zhou, Ya-Mei Jian, Shao-An Lan, Fei Xu
BACKGROUND Human lung cancer is still the leading cause of cancer-related mortality around the world, although a variety of new therapies have been used in the treatment of this disease. Antibody-drug conjugate (ADC) has revolutionized the field of cancer therapy in recent decades. Unlike traditional chemotherapy that damages the healthy cells, ADC first utilizes monoclonal antibodies to bind tumor-specific antigen targets and then deliver a highly potent cytotoxic agent to kill tumor cells. Thus, ADC can benefit cancer patients because this drug has less severe adverse effects...
March 8, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Irina A Tikhonova, Nicola Huxley, Tristan Snowsill, Louise Crathorne, Jo Varley-Campbell, Mark Napier, Martin Hoyle
BACKGROUND: Combination therapies with cetuximab (Erbitux® ; Merck Serono UK Ltd) and panitumumab (Vectibix® ; Amgen UK Ltd) are shown to be less effective in adults with metastatic colorectal cancer who have mutations in exons 2, 3 and 4 of KRAS and NRAS oncogenes from the rat sarcoma (RAS) family. OBJECTIVE: The objective of the study was to estimate the cost effectiveness of these drugs in patients with previously untreated RAS wild-type (i.e. non-mutated) metastatic colorectal cancer, not eligible for liver resection at baseline, from the UK National Health Service and Personal Social Services perspective...
March 1, 2018: PharmacoEconomics
H Gustafsson, A Kale, A Dasu, A Lund, P-H Edqvist, K Roberg
Head and neck squamous cell carcinoma (HNSCC) tumours are associated with high mortality despite advances in therapy. The monoclonal antibody cetuximab (Erbitux® ) has been approved for the treatment of advanced HNSCC. However, only a subset of HNSC patients receiving cetuximab actually responds to treatment, underlining the need for a means to tailor treatments of individual patients. The aim of the present study was to investigate the effect of cetuximab treatment on tumour growth, on tumour partial oxygen pressure as measured by LiPc electron paramagnetic resonance oximetry and on the expression of proteins involved in tumour growth, metabolism and hypoxia...
December 2017: Cell Biochemistry and Biophysics
Nicola Huxley, Louise Crathorne, Jo Varley-Campbell, Irina Tikhonova, Tristan Snowsill, Simon Briscoe, Jaime Peters, Mary Bond, Mark Napier, Martin Hoyle
BACKGROUND: Colorectal cancer is the fourth most commonly diagnosed cancer in the UK after breast, lung and prostate cancer. People with metastatic disease who are sufficiently fit are usually treated with active chemotherapy as first- or second-line therapy. Targeted agents are available, including the antiepidermal growth factor receptor (EGFR) agents cetuximab (Erbitux® , Merck Serono UK Ltd, Feltham, UK) and panitumumab (Vecitibix® , Amgen UK Ltd, Cambridge, UK). OBJECTIVE: To investigate the clinical effectiveness and cost-effectiveness of panitumumab in combination with chemotherapy and cetuximab in combination with chemotherapy for rat sarcoma ( RAS ) wild-type (WT) patients for the first-line treatment of metastatic colorectal cancer...
June 2017: Health Technology Assessment: HTA
Valentina D'Atri, Szabolcs Fekete, Alain Beck, Matthew Lauber, Davy Guillarme
The development and approval processes of biosimilar mAbs depend on their comparability to originators. Therefore, analytical comparisons are required to assess structural features and post-translational modifications (PTM) and thereby minimize the risk of being clinically meaningful differences between biosimilar and originator drug products. The glycosylation pattern of mAbs is considered to be an important critical quality attribute (CQA), and several analytical approaches have been proposed that facilitate characterizing and monitoring a glycosylation profile, albeit mainly at a glycan and glycopeptide level of analysis...
February 7, 2017: Analytical Chemistry
Alyssa M Larson, Alisha K Weight, Kevin Love, Amanda Bonificio, Charles R Wescott, Alexander M Klibanov
The viscosity of concentrated aqueous solutions of 3 clinical monoclonal antibodies (mAbs), Erbitux®, Herceptin®, and Rituxan®, has been reduced up to over 10-fold by adding certain bulky polar additives instead of saline at isotonic levels. Because these additives are also found not to compromise mAbs' stability against aggregation induced by stresses, a drug-delivery modality switch from intravenous infusions to more convenient and inexpensive parenteral options like subcutaneous injections may become possible...
May 2017: Journal of Pharmaceutical Sciences
Brammer Caroline, Yahya Sundus, Dawson Dawn, Glaister Carol, Merrick Susan
OBJECTIVE: The aim of this feasibility study is to define the resource effectiveness of cetuximab vs cisplatin given concomitantly with radiotherapy for squamous cell carcinoma within a National Health Service clinical oncology unit. METHODS: 20 patients with Stage 3 or 4 head and neck squamous cell cancers were randomized to receive either cetuximab with radiotherapy (ERT) or cisplatin with radiotherapy concurrent with external beam radiotherapy 70 Gy in 35 fractions on a 1 : 1 basis over a 12-month duration...
December 2016: British Journal of Radiology
S Marcatili, A Pichard, A Courteau, R Ladjohounlou, I Navarro-Teulon, A Repetto-Llamazares, H Heyerdahl, J Dahle, J P Pouget, M Bardiès
Current preclinical dosimetric models often fail to take account of the complex nature of absorbed dose distribution typical of in vitro clonogenic experiments in targeted radionuclide therapy. For this reason, clonogenic survival is often expressed as a function of added activity rather than the absorbed dose delivered to cells/cell nuclei. We designed a multi-cellular dosimetry model that takes into account the realistic distributions of cells in the Petri dish, for the establishment of survival curves as a function of the absorbed dose...
October 7, 2016: Physics in Medicine and Biology
Shi Hu, Haibin Dai, Tian Li, Ying Tang, Wenyan Fu, Qingning Yuan, Feifei Wang, Gaojian Lv, Yuanyuan Lv, Xiaoyan Fan, Sheng Zhang, Ruobing Jin, Yafeng Shen, Fangxing Lin, Xuting Ye, Min Ding, Yongji Yang, Changhai Lei
The human epidermal growth factor receptor (EGFR) targeting chimeric monoclonal antibody, cetuximab (Erbitux®), is a widely used drug in the treatment of metastatic colorectal cancer. However, the activation of the extensive crosstalk among the EGFR family receptors as well as other tyrosine kinase receptors (RTKs) impairs the efficacy of the drug by fueling acquired resistance. To identify the responsible potential activation pathway underlying cetuximab resistance and generate novel treatment strategies, cetuximab-resistant colorectal cancer cell lines were generated and validated and a functional RNAi screen targeting human RTKs was used to identify extensive receptor tyrosine kinase signaling networks established in resistant cancer cells...
November 1, 2016: Cancer Letters
Alexander Ewe, Sabrina Höbel, Claudia Heine, Lea Merz, Sonja Kallendrusch, Ingo Bechmann, Felicitas Merz, Heike Franke, Achim Aigner
The non-viral delivery of small RNA molecules like siRNAs still poses a major bottleneck for their successful application in vivo. This is particularly true with regard to crossing physiological barriers upon systemic administration. We have previously established polyethylenimine (PEI)-based complexes for therapeutic RNA formulation. These nanoplexes mediate full RNA protection against nucleolytic degradation, delivery to target tissues as well as cellular uptake, intracellular release and therapeutic efficacy in preclinical in vivo models...
April 2017: Drug Delivery and Translational Research
Yordan Benhamou, Vincent Picco, Hélène Raybaud, Anne Sudaka, Emmanuel Chamorey, Sanja Brolih, Martino Monteverde, Marco Merlano, Cristiana Lo Nigro, Damien Ambrosetti, Gilles Pagès
Oral Squamous Cell Carcinoma (OSCC) is the most common oral cancer worldwide. Treatments including surgery, radio- and chemo-therapies mostly result in debilitating side effects. Thus, a more accurate evaluation of patients at risk of recurrence after radio/chemo treatment is important for preserving their quality of life. We assessed whether the Telomeric Repeat-binding Factor 2 (TERF2) influences tumor aggressiveness and treatment response. TERF2 is over-expressed in many cancers but its correlation to patient outcome remains controversial in OSCC...
July 12, 2016: Oncotarget
S Cox, C Powell, B Carter, C Hurt, Somnath Mukherjee, Thomas David Lewis Crosby
BACKGROUND: Malnutrition is common in oesophageal cancer. We aimed to identify nutritional prognostic factors and survival outcomes associated with nutritional intervention in the SCOPE1 (Study of Chemoradiotherapy in OesoPhageal Cancer with or without Erbitux) trial. METHODS: Two hundred and fifty eight patients were randomly allocated to definitive chemoradiotherapy (dCRT) +/- cetuximab. Nutritional Risk Index (NRI) scores were calculated; NRI<100 identified patients at risk of malnutrition...
July 12, 2016: British Journal of Cancer
S Laban, J Kimmeyer, R Knecht, T K Hoffmann, C-J Busch, J A Veit, N Möckelmann, T Kurzweg
BACKGROUND: The EXTREME (Erbitux in First-Line Treatment of Recurrent and Metastatic Head and Neck Squamous Cell Carcinoma) protocol is generally considered the gold standard in palliative first-line treatment. However, there is some disagreement about its effectivity, toxicity, and applicability in daily clinical routine. The purpose of this cross-sectional survey was to describe the palliative treatment offered in German-speaking countries. METHODS: From November 2013 to July 2014, 204 departments of otorhinolaryngology (ORL) in Germany, Austria, and the German-speaking parts of Switzerland were contacted and invited to take part in a web-based survey on the treatment of HNSCC...
July 2016: HNO
Inmaculada Suárez, Antonio Salmerón-García, José Cabeza, Luis Fermín Capitán-Vallvey, Natalia Navas
Bevacizumab (BVZ), cetuximab (CTX) and trastuzumab (TTZ) are monoclonal antibodies (mAbs) used worldwide for the treatment of several widespread kinds of cancer. They are marketed as medicines under their respective tradenames: Avastin(®), Erbitux(®) and Herceptin(®). The aim of this research was to develop in-house specific enzyme-linked immunosorbent assays (ELISA) to assess the long-term stability of these three mabs. These assays assess the biological functionality of the mAbs by quantifying their biological activity...
October 1, 2016: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Rolf F Barth, Gong Wu, W Hans Meisen, Robin J Nakkula, Weilian Yang, Tianyao Huo, David A Kellough, Pravin Kaumaya, Claudia Turro, Lawrence M Agius, Balveen Kaur
The aim of this study was to evaluate four different platinated bioconjugates containing a cisplatin (cis-diamminedichloroplatinum [cis-DDP]) fragment and epidermal growth factor receptor (EGFR)-targeting moieties as potential therapeutic agents for the treatment of brain tumors using a human EGFR-expressing transfectant of the F98 rat glioma (F98EGFR) to assess their efficacy. The first two bioconjugates employed the monoclonal antibody cetuximab (C225 or Erbitux(®)) as the targeting moiety, and the second two used genetically engineered EGF peptides...
2016: OncoTargets and Therapy
Sijia Wang, Gereon Hüttmann, Thomas Scholzen, Zhenxi Zhang, Alfred Vogel, Tayyaba Hasan, Ramtin Rahmanzadeh
Using nanotechnology for optical manipulation of molecular processes in cells with high spatial and temporal precision promises new therapeutic options. Especially tumor therapy may profit as it requires a combination of both selectivity and an effective cell killing mechanism. Here we show a dual targeting approach for selective and efficient light-controlled killing of cells which are positive for epidermal growth factor receptor (EGFR) and Ki-67. Liposomes with the covalently linked EGFR antibody Erbitux enabled selective uptake of FITC-labeled Ki-67 antibody TuBB-9 in EGFR-positive cells pre-loaded with the photoactive dye BPD...
June 1, 2016: Scientific Reports
Seza A Gulec
At present, the systemic treatment of unresectable colorectal cancer liver metastases involves oxaliplatin and irinotecan-based chemotherapy regimens combined with targeted therapies such as bevacizumab (Avastin) and cetuximab (Erbitux). Radiation therapy, traditionally, is not considered a viable treatment modality owing to its unacceptably high hepatic toxicity, and still steering traditional wisdom or dogma that chemoradiation cannot be an oncological strategy for a stage IV disease. Selective internal radiation treatment with yttrium-90 (Y-90) radiomicrospheres has emerged as an effective liver-directed therapy with a favorable therapeutic ratio...
March 2016: Seminars in Nuclear Medicine
Khurum Khan, David Cunningham, Clare Peckitt, Sarah Barton, Diana Tait, Maria Hawkins, David Watkins, Naureen Starling, Sheela Rao, Ruwaida Begum, Janet Thomas, Jacqui Oates, Vincenza Guzzardo, Matteo Fassan, Chiara Braconi, Ian Chau
BACKGROUND: Locally advanced pancreatic cancer (LAPC) is associated with high mortality, and biomarker-driven treatment approach is currently lacking. This study evaluated safety and efficacy of a combination approach of chemotherapy followed by chemo-radiotherapy (CRT) +/- cetuximab, and the prognostic role of miR-21 in patients with LAPC treated with a multimodality approach. PATIENTS AND METHODS: This was a randomised phase II trial in which patients with inoperable LAPC were offered gemcitabine and capecitabine (GEM-CAP) for 16 weeks...
March 15, 2016: Oncotarget
Hitoshi Soda, Hiromichi Maeda, Junichi Hasegawa, Takao Takahashi, Shoichi Hazama, Mutsumi Fukunaga, Emiko Kono, Masahito Kotaka, Junichi Sakamoto, Naoki Nagata, Koji Oba, Hideyuki Mishima
BACKGROUND: The clinical benefit of cetuximab combined with oxaliplatin-based chemotherapy remains under debate. The aim of the present multicenter open-label Phase II study was to explore the efficacy and safety of biweekly administration of cetuximab and mFOLFOX-6 or XELOX as first-line chemotherapy in patients with metastatic colorectal cancer. METHODS: Sixty-two patients with previously untreated KRAS/BRAF wild-type metastatic colorectal cancer were recruited to the study between April 2010 and May 2011...
2015: BMC Cancer
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