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Drug eluting beads

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https://www.readbyqxmd.com/read/28436630/-clinical-investigation-on-transarterial-chemoembolization-with-indigenous-drug-eluting-beads-in-treatment-of-unresectable-hepatocellular-carcinoma
#1
Gang Chen, Ding Zhang, Yacao Ying, Zhifeng Wang, Wei Tao, Hao Zhu, Jingfeng Zhang, Zhiyi Peng
Objective: To evaluate the efficacy and safety of drug-eluding beads transarterial chemoembolization (DEB-TACE) in treatment of unrecectable hepatocellular carcinoma (HCC). Methods: The clinical data of 42 consecutive HCC patients undergoing TACE were retrospectively analyzed, including 20 cases received conventional TACE (cTACE group) and 22 cases received TACE with epirubicine-loaded microspheres (CalliSpheres (®)) (DEB-TACE group). MRI scans were performed 1 week before and 1, 3 and 6 months after initial therapy...
January 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28384190/in-vitro-biologic-efficacy-of-sunitinib-drug-eluting-beads-on-human-colorectal-and-hepatocellular-carcinoma-a-pilot-study
#2
Steven Lahti, Johannes M Ludwig, Minzhi Xing, Lingyi Sun, Dexing Zeng, Hyun S Kim
PURPOSE: Sunitinib drug eluting beads (DEB) are a novel anti-angiogenic bead preparation for use in transarterial chemoembolization. However, systematic studies of sunitinib DEB's effect on cancer cells have not been reported. Herein, we assess their direct biologic efficacy against carcinoma cell lines and correlate cell viability with drug release in vitro. MATERIALS AND METHODS: Sunitinib-HCl (10mg/mL) in Milli-Q water was mixed with LC Bead® 300-500μm (Biocompatibles UK Ltd...
2017: PloS One
https://www.readbyqxmd.com/read/28373452/chemoembolization-with-drug-eluting-microspheres-loaded-with-doxorubicin-for-the-treatment-of-cholangiocarcinoma
#3
Camillo Aliberti, Riccardo Carandina, Donatella Sarti, Enrico Pizzirani, Gaetano Ramondo, Luca Mulazzani, Gian Maria Mattioli, Giammaria Fiorentini
AIM: To report clinical outcomes of transarterial chemoembolization (TACE) using drug-eluting beads (DEBs) loaded with doxorubicin for the treatment of unresectable intrahepatic cholangiocarcinoma (CCA). PATIENTS AND METHODS: We treated 127 patients with doxorubicin via TACE. Inclusion criteria were: diagnosis of unresectable CCA; indication for TACE, performance status (PS) 0-2, >3 months of life expectancy, >18 years old, written consent. TACE was performed using DEBs for 109 (86%) patients and polythylene glycol drug-elutable microspheres (PEG) loaded with doxorubicin for 18 (14%) patients...
April 2017: Anticancer Research
https://www.readbyqxmd.com/read/28373099/towards-hypoxia-responsive-drug-eluting-embolization-beads
#4
Koorosh Ashrafi, Clare L Heaysman, Gary J Phillips, Andrew W Lloyd, Andrew L Lewis
Drug release from chemoembolization microspheres stimulated by the presence of a chemically reducing environment may provide benefits for targeting drug resistant and metastatic hypoxic tumours. A water-soluble disulfide-based bifunctional cross-linker bis(acryloyl)-(l)-cystine (BALC) was synthesised, characterised and incorporated into a modified poly(vinyl) alcohol (PVA) hydrogel beads at varying concentrations using reverse suspension polymerisation. The beads were characterised to confirm the amount of cross-linker within each formulation and its effects on the bead properties...
March 31, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28365285/magnetic-stimuli-responsive-chitosan-based-drug-delivery-biocomposite-for-multiple-triggered-release
#5
Michael Harris, Hamza Ahmed, Brandico Barr, David LeVine, Leslie Pace, Ankita Mohapatra, Bashir Morshed, Joel D Bumgardner, Jessica Amber Jennings
Stimuli responsive biomaterials offer a unique advantage over traditional local drug delivery systems in that the drug elution rate can be controllably increased to combat developing symptomology or maintain high local elution levels for disease treatment. In this study, superparamagnetic Fe3O4 nanoparticles and the antibiotic vancomycin were loaded into chitosan microbeads cross-linked with varying lengths of polyethylene glycol dimethacrylate. Beads were characterized using degradation, biocompatibility, and elution studies with successive magnetic stimulations at multiple field strengths and frequencies...
March 29, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28342695/in%C3%A2-vivo-serum-concentration-of-vancomycin-in-antibiotic-loaded-acrylic-cement-for-the-treatment-and-prevention-of-periprosthetic-hip-infection
#6
Kenichi Oe, Hirokazu Iida, Narumi Ueda, Tomohisa Nakamura, Naofumi Okamoto, Yusuke Ueda
BACKGROUND: Although antibiotic-loaded acrylic cement (ALAC) is used to prevent and treat periprosthetic hip infection, it is unknown how much antibiotic is deposited in the body in vivo, how high the serum concentration rises, or how long its effects last. The aim of this study was firstly to determine the amount of vancomycin (VCM) deposited as ALAC in the body, and secondly to assess the safety and drug elution profile of VCM in ALAC. METHODS: We administered VCM to prevent infection after total hip arthroplasty (THA) or to treat patients with methicillin-resistant Staphylococcus aureus...
March 22, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28299645/new-concepts-in-embolotherapy-of-hcc
#7
REVIEW
F Pesapane, N Nezami, F Patella, J F Geschwind
Hepatocellular carcinoma (HCC) is the second most common cause of cancer-related deaths worldwide with rapidly growing incidence rates in the USA and Europe. Despite improving surveillance programs, most patients are diagnosed at intermediate to advanced stages and are no longer amenable to curative therapies, such as ablation, surgical resection and liver transplantation. For such patients, catheter-based image-guided embolotherapies such as transarterial chemoembolization (TACE) represent the standard of care and mainstay therapy, as recommended and endorsed by a variety of national guidelines and staging systems...
April 2017: Medical Oncology
https://www.readbyqxmd.com/read/28261591/intra-arterial-embolotherapy-for-intrahepatic-cholangiocarcinoma-update-and-future-prospects
#8
REVIEW
Lynn Jeanette Savic, Julius Chapiro, Jean-François H Geschwind
Intrahepatic cholangiocarcinoma (ICC) is a rare disease and carries a poor prognosis with surgery remaining the only curative treatment option. However, due to the late presentation of symptoms and close proximity of the tumors to central hepatic structures, only about 30% of patients are classified eligible to resection. As for palliative approaches, ICC constitutes a possible indication for loco-regional therapies (LRT). As such, intra-arterial therapies (IAT) are reported to be feasible, safe and effective in inducing tumor response in unresectable ICC...
February 2017: Hepatobiliary Surgery and Nutrition
https://www.readbyqxmd.com/read/28246550/drug-eluting-beads-in-hepatocellular-carcinoma
#9
Hiroyuki Abe, Kenya Kamimura, Shuji Terai
No abstract text is available yet for this article.
March 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28228906/histological-assessment-of-the-efficacy-of-drug-eluting-beads-in-portal-tumor-thrombosis-of-hepatocellular-carcinoma
#10
Yusuke Imai, Masashi Hirooka, Yohei Koizumi, Yoshiko Nakamura, Takao Watanabe, Osamu Yoshida, Yoshio Tokumoto, Eiji Takeshita, Masanori Abe, Hiroaki Tanaka, Mie Kurata, Sohei Kitazawa, Yoichi Hiasa
A 58-year-old man was diagnosed with advanced hepatocellular carcinoma with portal vein tumor thrombosis (PVTT). The tumors were multiple and existed in both lobes. Drug-eluting beads transcatheter arterial chemoembolization (DEB-TACE) was performed for the tumors in the left lobe. Embosphere and Hepasphere were selected for embolization of the arterioportal shunt, followed by loaded epirubicin infusion into the left hepatic artery. Computed tomography showed reduction of PVTT. However, liver failure progressed, and the patient died 67 days after DEB-TACE...
March 2017: Radiology case reports
https://www.readbyqxmd.com/read/28193540/unusual-behaviour-induced-by-phase-separation-in-hydrogel-microspheres
#11
Clare L Heaysman, Gary J Philips, Andrew W Lloyd, Andrew L Lewis
Hydrogel microspheres with the capability to interact with charged species such as various drugs by ion-exchange processes are useful in a variety of biomedical applications. Such systems have been developed to allow active loading of the microsphere with chemotherapeutic agents in the hospital pharmacy for subsequent locoregional therapy of tumours in the liver by drug-eluting bead chemoembolization (DEB-TACE). A variety of microspherical embolisation systems have been described, all based upon hydrogels bearing anionic functionalities to allow interaction with cationically charged drugs...
February 13, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28188808/characterization-of-a-novel-intrinsically-radiopaque-drug-eluting-bead-for-image-guided-therapy-dc-bead-lumi%C3%A2
#12
Koorosh Ashrafi, Yiqing Tang, Hugh Britton, Orianne Domenge, Delphine Blino, Andrew J Bushby, Kseniya Shuturminska, Mark den Hartog, Alessandro Radaelli, Ayele H Negussie, Andrew S Mikhail, David L Woods, Venkatesh Krishnasamy, Elliot B Levy, Bradford J Wood, Sean L Willis, Matthew R Dreher, Andrew L Lewis
We have developed a straightforward and efficient method of introducing radiopacity into Polyvinyl alcohol (PVA)-2-Acrylamido-2-methylpropane sulfonic acid (AMPS) hydrogel beads (DC Bead™) that are currently used in the clinic to treat liver malignancies. Coupling of 2,3,5-triiodobenzaldehyde to the PVA backbone of pre-formed beads yields a uniformly distributed level of iodine attached throughout the bead structure (~150mg/mL) which is sufficient to be imaged under standard fluoroscopy and computed tomography (CT) imaging modalities used in treatment procedures (DC Bead LUMI™)...
February 8, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28167071/on-column-trypsinization-allows-for-re-use-of-matrix-in-modified-multiplexed-inhibitor-beads-assay
#13
Voin Petrovic, Camilla Olaisen, Animesh Sharma, Anala Nepal, Steffen Bugge, Eirik Sundby, Bård Helge Hoff, Geir Slupphaug, Marit Otterlei
The Multiplexed Inhibitor Bead (MIB) assay is a previously published quantitative proteomic MS-based approach to study cellular kinomes. A rather extensive procedure, need for multiple custom-made kinase inhibitors and an inability to re-use the MIB-columns, has limited its applicability. Here we present a modified MIB assay in which elution of bound proteins is facilitated by on-column trypsinization. We tested the modified MIB assay by analyzing extract from three human cancer cell lines treated with the cytotoxic drugs cisplatin or docetaxel...
February 3, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28160267/third-line-treatment-of-colorectal-liver-metastases-using-debiri-chemoembolization
#14
Germano Scevola, Giorgio Loreni, Marco Rastelli, Stefano Sposato, Sara Ramponi, Vittorio Miele
To evaluate safety, efficacy of drug-eluting beads with irinotecan (DEBIRI) on local response and survival of patients affected by colorectal liver metastases (CRLM) progressing during or after second line was evaluated. Sixty-two patients, with colorectal liver metastases, not suitable for surgery or thermal ablation treatments, progressing during or within 6 month from the end of second-line chemotherapy, were treated with DEBIRI chemoembolization between February 2009 and July 2014. CRLM were histologically confirmed...
March 2017: Medical Oncology
https://www.readbyqxmd.com/read/28132823/preparation-and-characterisation-of-vandetanib-eluting-radiopaque-beads-for-locoregional-treatment-of-hepatic-malignancies
#15
Alice Hagan, Gary J Phillips, Wendy M Macfarlane, Andrew W Lloyd, Peter Czuczman, Andrew L Lewis
Since their introduction around a decade ago, embolic drug-eluting beads (DEBs) have become a well-established treatment option for the locoregional transarterial treatment of hepatic malignancies. Despite this success, the therapy is seen to be limited by the choice of drug and more effective options are therefore being sought. These include the small molecule multi-tyrosine kinase inhibitors (MTKi), which exert an anti-angiogenic and anti-proliferative effect that could be highly beneficial in combating some of the unwanted downstream consequences of embolization...
April 1, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28097503/blended-chitosan-paste-for-infection-prevention-preliminary-and-preclinical-evaluations
#16
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
#17
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
#18
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
#19
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
#20
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
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