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Drug eluting beads

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https://www.readbyqxmd.com/read/28097503/blended-chitosan-paste-for-infection-prevention-preliminary-and-preclinical-evaluations
#1
Joel M Berretta, Jessica A Jennings, Harry S Courtney, Karen E Beenken, Mark S Smeltzer, Warren O Haggard
BACKGROUND: Local drug delivery devices offer a promising method for delivering vancomycin and amikacin for musculoskeletal wounds. However, current local delivery devices such as beads and sponges do not necessarily allow for full coverage of a wound surface with eluted antibiotics and do not address the need for reducing the antibiotic diffusion distance to help prevent contamination by bacteria or other microorganisms. We blended chitosan/polyethylene glycol (PEG) pastes/sponges to increase biocompatibility and improve antibiotic coverage within the wound...
January 17, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28097502/should-we-routinely-use-debtace-for-unresectable-hcc-ctace-versus-debtace-a-single-center-survival-analysis
#2
M Massani, T Stecca, C Ruffolo, N Bassi
Conventional trans-arterial chemoembolization (cTACE) for intermediate stage hepatocellular carcinoma (HCC) achieves a partial response in up to 72% of patients and improves median survival. Drug-eluting-beads-TACE (DEBTACE) improves treatment efficacy and tolerance as compared to cTACE. Our aim was to retrospectively evaluate our experience in the treatment of intermediate/advanced HCC with cTACE versus DEBTACE. Overall survival (OS) was the first endpoint. We retrospectively considered our department register data between 2006 and 2012...
January 17, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28097096/impact-of-different-embolic-agents-for-transarterial-chemoembolization-tace-procedures-on-systemic-vascular-endothelial-growth-factor-vegf-levels
#3
Andreas Schicho, Claus Hellerbrand, Kristina Krüger, Lukas P Beyer, Walter Wohlgemuth, Christoph Niessen, Ernst Hohenstein, Christian Stroszczynski, Philippe L Pereira, Philipp Wiggermann
Background and Aims: Intermediate stage hepatocellular carcinoma (HCC) can be treated by transarterial chemoembolization (TACE). However, there appear to be side effects, such as induction of proangiogenic factors, e.g. vascular endothelial growth factor (VEGF), which have been shown to be associated with a poor prognosis. This prospective study was designed to compare serum VEGF level response after TACE with different embolic agents in patients with HCC. Methods: Patients were assigned to one of three different TACE regimens: degradable starch microspheres (DSM) TACE, drug-eluting bead (DEBDOX) TACE or Lipiodol TACE (cTACE)...
December 28, 2016: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/28042235/novel-implications-in-the-treatment-of-hepatocellular-carcinoma
#4
REVIEW
Jan Best, Clemens Schotten, Jens M Theysohn, Axel Wetter, Stefan Müller, Sonia Radünz, Maren Schulze, Ali Canbay, Alexander Dechêne, Guido Gerken
Worldwide hepatocellular carcinoma remains one of the leading causes of cancer-related death, associated with a poor prognosis due to late diagnosis in the majority of cases. Physicians at care are frequently confronted with patients who are ineligible for curative treatment such as liver resection, transplantation or radiofrequency ablation. Besides established palliative locoregional therapies, such as ablation or chemoembolization, new treatment options, such as microwave ablation, drug-eluting bead transarterial chemoembolization or selective internal radiation therapy, are emerging; however, data from randomized controlled trials are still lacking...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28008454/intra-arterial-contrast-enhanced-ultrasound-ia-ceus-for-localization-of-hepatocellular-carcinoma-hcc-supply-during-transarterial-chemoembolization-tace-a-case-series
#5
Ilya Lekht, Megha Nayyar, Brian Luu, Phillip L Guichet, Jessica Ho, Ramon Ter-Oganesyan, Michael Katz, Mittul Gulati
Transarterial chemoembolization (TACE) is a proven catheter-based locoregional therapy for treatment of hepatocellular carcinoma (HCC). Drug-eluting bead TACE involves delivering micrometer-sized particles preloaded with doxorubicin directly to the tumor via its arterial blood supply and results in vascular embolization with intra-tumoral drug release. Effective therapy requires mapping of the tumor arterial supply, which in some cases cannot be accomplished with conventional angiographic techniques alone. Contrast-enhanced ultrasound (CEUS) is an imaging technique which utilizes microbubble contrast agents to demonstrate blood flow and tissue perfusion, enabling tumor visualization in real time...
December 23, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/28004168/review-of-the-clinical-evidence-for-the-use-of-debiri-in-the-treatment-of-colorectal-metastatic-disease
#6
Shamar Young, Donna D'Souza, Siobhan Flanagan, Jafar Golzarian
Colorectal cancer is a common malignancy that most commonly metastasizes to the liver. There has been considerable effort in developing new treatment options for these patients. One method that has been developed for the treatment of colorectal metastases to the liver is irinotecan-loaded drug-eluting bead (DEBIRI) embolization. This article reviews the current literature on DEBIRI and discusses the state of current knowledge and possible areas of future investigation.
December 21, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28003766/a-pilot-study-employing-hepatic-intra-arterial-irinotecan-injection-of-drug-eluting-beads-as-salvage-therapy-in-liver-metastatic-colorectal-cancer-patients-without-extrahepatic-involvement-the-first-southern-italy-experience
#7
Girolamo Ranieri, Artor Niccoli Asabella, Corinna Altini, Vito Fazio, Luciana Caporusso, Ilaria Marech, Gianluca Vinciarelli, Francesco Macina, Dario de Ceglia, Margherita Fanelli, Michele Ammendola, Giuseppe Rubini, Cosmo Damiano Gadaleta
BACKGROUND: The main aim of this prospective study was to evaluate the efficacy of drug-eluting beads with irinotecan (DEBIRI) for liver metastases from colorectal cancer. Secondary aims were to evaluate survival and toxicity. METHODS: Twenty-five patients with metastases in <50% of the liver and without extrahepatic involvement were enrolled. Treatment response assessment was performed by multidetector contrast enhancement computed tomography (MDCT) with evaluation of the enhancement pattern of the target lesion and tumor response rates according to modified Response Evaluation Criteria in Solid Tumors (mRECIST, Version 1...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28000631/evaluation-of-the-viability-of-hepatocellular-carcinoma-in-the-caudate-lobe-using-contrast-enhanced-endoscopic-ultrasonography-after-transarterial-chemoembolization
#8
So Nakaji, Nobuto Hirata
A 71-year-old female was diagnosed with hepatocellular carcinoma (HCC). The tumor measured 65 mm in diameter and was located in the caudate lobe. Transarterial chemoembolization (TACE) was performed repeatedly; however, a follow-up dynamic computed tomography (CT) scan showed that the tumor remained viable. Thus, TACE was performed using drug-eluting beads that had been preloaded with epirubicin. Contrast-enhanced endoscopic ultrasonography (CE-EUS) was conducted for evaluating the treatment effects. First, we detected the internal part of the tumor...
November 2016: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/27997198/in-vivo-drug-delivery-performance-of-lipiodol-based-emulsion-or-drug-eluting-beads-in-patients-with-hepatocellular-carcinoma
#9
Elsa Lilienberg, Ilse R Dubbelboer, Amar Karalli, Rimma Axelsson, Torkel B Brismar, Charlotte Ebeling Barbier, Agneta Norén, Frans Duraj, Mikael Hedeland, Ulf Bondesson, Erik Sjögren, Per Stål, Rickard Nyman, Hans Lennernäs
Doxorubicin (DOX) delivered in a lipiodol-based emulsion (LIPDOX) or in drug-eluting beads (DEBDOX) is used as palliative treatment in patients with intermediate-stage hepatocellular carcinoma (HCC). The primary objective of this study was to evaluate the in vivo delivery performance of DOX from LIPDOX or DEBDOX in HCC patients using the local and systemic pharmacokinetics of DOX and its main metabolite doxorubicinol (DOXol). Urinary excretion of DOX and DOXol and their short-term safety and antitumor effects were also evaluated...
January 5, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27993355/intra-arterial-therapies-for-colorectal-cancer-liver-metastases-radioembolization-excluded
#10
REVIEW
Thierry de Baere, Lambros Tselikas, Valérie Boige, Michel Ducreux, David Malka, Diane Goéré, Eléonore Benahim, Frédéric Deschamps
During the past 20 years, advances in systemic therapies have improved overall survival of patients with Colorectal cancer Liver metastases (CRLM) from 6 to 24 months. By reaching CRLM via their preferential arterial vascularization, hepatic arterial infusion of chemotherapy (HAIC) has demonstrated improvement in response rate and deepness of response. Improvement in deepness of response is potentially helpful to convert no surgical patient to surgery. Recent HAIC regimens, including HAIC-FUDR plus systemic oxaliplatin/irinotecan, or HAIC-oxaliplatin plus systemic 5FU and cetuximab yielded a 92% and 90% response rate respectively, and conversion to R0 surgery in 47% and 42% of patients, respectively...
December 16, 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/27856136/korean-multicenter-registry-of-transcatheter-arterial-chemoembolization-with-drug-eluting-embolic-agents-for-nodular-hepatocellular-carcinomas-six-month-outcome-analysis
#11
Myungsu Lee, Jin Wook Chung, Kwang-Hun Lee, Jong Yun Won, Ho Jong Chun, Han Chu Lee, Jin Hyoung Kim, In Joon Lee, Saebeom Hur, Hyo-Cheol Kim, Yoon Jun Kim, Gyoung Min Kim, Seung-Moon Joo, Jung Suk Oh
PURPOSE: To assess the efficacy and safety of transcatheter arterial chemoembolization with drug-eluting embolic (DEE) agents for nodular hepatocellular carcinoma (HCC). MATERIALS AND METHODS: The study design was a prospective multicenter registry-based, single-arm clinical trial that included 152 patients. One hundred three (67.8%) had a Child-Pugh class/score of A5, 114 (75.0%) had a performance status of 0, and 77 (50.7%) had Barcelona Clinic Liver Cancer (BCLC) stage A disease...
November 14, 2016: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/27834009/predicting-outcomes-after-chemo-embolization-in-patients-with-advanced-stage-hepatocellular-carcinoma-an-evaluation-of-different-radiologic-response-criteria
#12
Andrew J Gunn, Rahul A Sheth, Brandon Luber, Minh-Huy Huynh, Niranjan R Rachamreddy, Sanjeeva P Kalva
PURPOSE: The purpse of this study was to evaluate the ability of various radiologic response criteria to predict patient outcomes after trans-arterial chemo-embolization with drug-eluting beads (DEB-TACE) in patients with advanced-stage (BCLC C) hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Hospital records from 2005 to 2011 were retrospectively reviewed. Non-infiltrative lesions were measured at baseline and on follow-up scans after DEB-TACE according to various common radiologic response criteria, including guidelines of the World Health Organization (WHO), Response Evaluation Criteria in Solid Tumors (RECIST), the European Association for the Study of the Liver (EASL), and modified RECIST (mRECIST)...
January 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27833376/transarterial-chemoembolization-with-drug-eluting-beads-in-hepatocellular-carcinoma
#13
EDITORIAL
Hee Chul Nam, Bohyun Jang, Myeong Jun Song
Transarterial chemoembolization (TACE) is a widely used standard treatment for patients with hepatocellular carcinoma (HCC) who are not suitable candidates for curative treatments. The rationale for TACE is that intra-arterial chemotherapy using lipiodol and chemotherapeutic agents, followed by selective vascular embolization, results in a strong cytotoxic effect as well as ischemia (conventional TACE). Recently, drug-eluting beads (DC Beads(®)) have been developed for transcatheter treatment of HCC to deliver higher doses of the chemotherapeutic agent and to prolong contact time with the tumor...
October 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27824665/tumor-enhancement-and-heterogeneity-are-associated-with-treatment-response-to-drug-eluting-bead-chemoembolization-for-hepatocellular-carcinoma
#14
Stephen P Reis, Patrick D Sutphin, Amit G Singal, Richard Grzybowski, Stephen Fisher, Christopher Ball, Yin Xi, Simer Grewal, Sanjeeva P Kalva
PURPOSE: Treatment response to drug-eluting bead chemoembolization (DEB-TACE) is well established for patients with hepatocellular carcinoma (HCC); however, few studies have evaluated tumor imaging characteristics associated with treatment responses. The aim of our study was to identify imaging characteristics associated with treatment responses and overall survival after DEB-TACE of HCC. METHODS: This is a retrospective cohort study of 33 tumors in 32 patients who underwent DEB-TACE for inoperable HCC in a single, large academic medical center...
November 7, 2016: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/27799641/serological-responses-to-filarial-antigens-in-malian-children-attending-elementary-schools
#15
Delynn M Moss, Anna N Chard, Victoria Trinies, Seydou Doumbia, Matthew C Freeman, Patrick J Lammie
Dried blood spots (DBS) were collected from 805 children attending 42 elementary schools in the regions of Mopti, Sikasso, Koulikoro, and the regional capital of Bamako in Mali as part of an evaluation of a school health intervention. Eluted immunoglobulin (Ig) G from the DBS was assessed by a multiplex bead assay (MBA) for two filariasis antigens, Wuchereria bancrofti, Wb123, and Brugia malayi, Bm14, to determine the effectiveness of mass drug administration (MDA) programs to eliminate lymphatic filariasis (LF)...
October 31, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27797494/automated-affinity-capture-and-on-tip-digestion-to-accurately-quantitate-in-vivo-deamidation-of-therapeutic-antibodies
#16
John C Tran, Daniel Tran, Amy Hilderbrand, Nisana Andersen, Tao Huang, Karin Reif, Isidro Hotzel, Eric G Stefanich, Yichin Liu, Jianyong Wang
Deamidation of therapeutic antibodies may result in decreased drug activity and undesirable changes in pharmacokinetics and immunogenicity. Therefore, it is necessary to monitor the deamidation levels [during storage] and after in vivo administration. Because of the complexity of in vivo samples, immuno-affinity capture is widely used for specific enrichment of the target antibody prior to LC-MS. However, the conventional use of bead-based methods requires large sample volumes and extensive processing steps...
December 6, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27752972/in-vitro-comparative-study-of-drug-loading-and-delivery-properties-of-bioresorbable-microspheres-and-lc-bead
#17
Lihui Weng, Hsiang-Jer Tseng, Parinaz Rostamzadeh, Jafar Golzarian
Drug loadable bioresorbable microspheres (BRMS) are specially designed for the treatment of hypervascular tumors through arterial embolization. These microspheres consist of carboxymethyl chitosan crosslinked with carboxymethyl cellulose, and are available at different size ranges varying from 50 to 900 µm in diameter. Similar to commercially available non-resorbable drug eluting microspheres, LC Bead(®) microspheres (LCB), BRMS were capable of loading more than 99 % of doxorubicin, an anticancer drug, from the solution within 2 h with highly similar kinetics (difference factor f 1 = 0...
December 2016: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/27705924/a-mixed-analysis-comparing-nine-minimally-invasive-surgeries-for-unresectable-hepatocellular-carcinoma-patients
#18
Ran Tao, Xiaodan Li, Ruizhi Ran, Zhihua Xiao, Hongyue Zhang, Hongyan Kong, Qiqin Song, Yu Huang, Likui Wang, Jiaquan Huang
Hepatocellular carcinoma (HCC) is usually managed by the transcatheter arterial chemoembolization (TACE). However, this technique has been challenged since severe complications have been observed in clinical practices. As a result, clinicians have started to seek other minimally invasive surgeries with equivalent efficacy. The corresponding surgeries were assessed by the five outcomes: complete response (CR), partial response (PR), stable disease (SD), progression disease (PD) and objective response rate (ORR)...
September 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27685323/antibody-labeling-with-fluorescent-dyes-using-magnetic-protein-a-and-protein-g-beads
#19
Nidhi Nath, Becky Godat, Marjeta Urh
Antibodies labeled with small molecules like fluorescent dyes, cytotoxic drugs, and radioactive tracers are essential tools in biomedical research, immunodiagnostics and more recently as therapeutic agents. Traditional methods for labeling antibodies with small molecules require purified antibodies at relatively high concentration, involve multiple dialysis steps and have limited throughput. However, several applications, including the field of Antibody Drug Conjugates (ADCs), will benefit from new methods that will allow labeling of antibodies directly from cell media...
2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27646519/doxorubicin-loaded-70-150%C3%A2-%C3%AE-m-microspheres-for-liver-dominant-metastatic-breast-cancer-results-and-outcomes-of-a-pilot-study
#20
Yen-Ting Lin, Jacques Médioni, Grégory Amouyal, Carole Déan, Marc Sapoval, Olivier Pellerin
PURPOSE: Patients with breast cancer liver metastasis have a poor prognosis. Local therapy for liver metastasis increases survival. The purpose of this pilot prospective study was to evaluate the efficacy and safety of doxorubicin drug-eluting beads chemoembolization for liver-dominant breast cancer metastasis (LdBM) refractory to chemotherapy. MATERIALS AND METHODS: All patients with LdBM refractory to of two or more lines of systemic chemotherapy were screened...
January 2017: Cardiovascular and Interventional Radiology
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