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https://www.readbyqxmd.com/read/27865821/the-effects-of-tumor-treating-fields-and-temozolomide-in-mgmt-expressing-and-non-expressing-patient-derived-glioblastoma-cells
#1
Paul A Clark, Jordan T Gaal, Joslyn K Strebe, Cheri A Pasch, Dustin A Deming, John S Kuo, H Ian Robins
A recent Phase 3 study of newly diagnosed glioblastoma (GBM) demonstrated the addition of tumor treating fields (TTFields) to temozolomide (TMZ) after combined radiation/TMZ significantly increased survival and progression free survival. Preliminary data suggested benefit with both methylated and unmethylated O-6-methylguanine-DNA methyl-transferase (MGMT) promoter status. To date, however, there have been no studies to address the potential interactions of TTFields and TMZ. Thus, the effects of TTFields and TMZ were studied in vitro using patient-derived GBM stem-like cells (GSCs) including MGMT expressing (TMZ resistant: 12...
November 16, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27845746/an-overview-of-sub-cellular-mechanisms-involved-in-the-action-of-ttfields
#2
REVIEW
Jack A Tuszynski, Cornelia Wenger, Douglas E Friesen, Jordane Preto
Long-standing research on electric and electromagnetic field interactions with biological cells and their subcellular structures has mainly focused on the low- and high-frequency regimes. Biological effects at intermediate frequencies between 100 and 300 kHz have been recently discovered and applied to cancer cells as a therapeutic modality called Tumor Treating Fields (TTFields). TTFields are clinically applied to disrupt cell division, primarily for the treatment of glioblastoma multiforme (GBM). In this review, we provide an assessment of possible physical interactions between 100 kHz range alternating electric fields and biological cells in general and their nano-scale subcellular structures in particular...
November 12, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27809808/planning-ttfields-treatment-using-the-novotal-system-clinical-case-series-beyond-the-use-of-mri-contrast-enhancement
#3
Jennifer Connelly, Adília Hormigo, Nimish Mohilie, Jethro Hu, Aafia Chaudhry, Nicholas Blondin
BACKGROUND: Gliomas are the most common primary brain tumors in adults and invariably carry a poor prognosis. Recent clinical studies have demonstrated the safety and compelling survival benefit when tumor treating fields (TTFields) are added to temozolomide for patients with newly diagnosed glioblastoma. TTFields are low-intensity, intermediate frequency (200 kHz) alternating electric fields, delivered directly to a patient's brain through the local application of non-invasive transducer arrays...
November 4, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27799506/personalized-treatment-for-a-patient-with-a-braf-v600e-mutation-using-dabrafenib-and-a-tumor-treatment-fields-device-in-a-high-grade-glioma-arising-from-ganglioglioma
#4
Silviya K Meletath, Dean Pavlick, Tim Brennan, Roy Hamilton, Juliann Chmielecki, Julia A Elvin, Norma Palma, Jeffrey S Ross, Vincent A Miller, Philip J Stephens, George Snipes, Veena Rajaram, Siraj M Ali, Isaac Melguizo-Gavilanes
BACKGROUND: Gangliogliomas are slow-growing, low-grade central nervous system tumors affecting children and young adults. However, some patients will experience tumor recurrence and/or malignant progression. This article reports on the clinical history, molecular findings, and treatment response in a patient with BRAF V600-mutated high-grade glioma arising from ganglioglioma. METHODS: Hematoxylin-eosin staining and comprehensive genomic profiling via Foundation One were performed on the tumor sample from a male patient undergoing treatment at the Department of Neuro-Oncology at Baylor University Medical Center...
November 2016: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/27695068/enhancing-predicted-efficacy-of-tumor-treating-fields-therapy-of-glioblastoma-using-targeted-surgical-craniectomy-a-computer-modeling-study
#5
Anders Rosendal Korshoej, Guilherme Bicalho Saturnino, Line Kirkegaard Rasmussen, Gorm von Oettingen, Jens Christian Hedemann Sørensen, Axel Thielscher
OBJECTIVE: The present work proposes a new clinical approach to TTFields therapy of glioblastoma. The approach combines targeted surgical skull removal (craniectomy) with TTFields therapy to enhance the induced electrical field in the underlying tumor tissue. Using computer simulations, we explore the potential of the intervention to improve the clinical efficacy of TTFields therapy of brain cancer. METHODS: We used finite element analysis to calculate the electrical field distribution in realistic head models based on MRI data from two patients: One with left cortical/subcortical glioblastoma and one with deeply seated right thalamic anaplastic astrocytoma...
2016: PloS One
https://www.readbyqxmd.com/read/27675400/personalizing-tumor-treating-fields-ttfields-therapy-with-novotal-implications-for-patterns-of-local-and-distal-recurrence-in-glioblastoma-gb
#6
A Chaudhry, D Garcia-Carracedo, Z Bomzon, H S Hershkovich, C Wenger, U Weinberg, Y Palti
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27674762/computational-simulations-to-determine-optimal-array-layouts-for-delivering-ttfields-to-the-lungs
#7
N Urman, Z Bomzon, H S Hershkovich, U Weinberg, E Kirson, Y Palti
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27668388/efficacy-and-safety-of-treating-glioblastoma-with-tumor-treating-fields-therapy
#8
Marlon G Saria, Santosh Kesari
BACKGROUND: Glioblastoma (GBM) is a highly aggressive astrocytoma with a dismal prognosis. Since 1976, only three chemotherapeutic agents have been approved for the treatment of GBM. Tumor-treating fields (TTFields) therapy, delivered via a noninvasive device, is a new therapy approved for use in patients with recurrent GBM and in combination with temozolomide for the treatment of newly diagnosed GBM. OBJECTIVES: This article reviews the mechanism of action and findings from preclinical and clinical studies supporting the use of TTFields for patients with newly diagnosed and recurrent GBM...
October 1, 2016: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/27668387/rationale-and-background-on-tumor-treating-fields-for-glioblastoma
#9
Margaret A Schwartz, Lynnette Onuselogu
BACKGROUND: More than 150 years after the first description of glioma cells, patients with glioblastoma (GBM) continue to have a poor prognosis despite standard-of-care therapy. With the introduction of tumor-treating fields (TTFields) therapy for the treatment of recurrent GBM in 2011 and for newly diagnosed GBM in 2015, the opportunity to increase progression-free survival and overall survival while improving quality of life provides a welcome option. OBJECTIVES: This article describes how TTFields therapy may be used in the treatment of patients with recurrent GBM...
October 1, 2016: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/27668386/glioblastoma-overview-of-disease-and-treatment
#10
Mary Elizabeth Davis
BACKGROUND: Glioblastoma (GBM) is the most common and aggressive malignant brain tumor in adults. Current treatment options at diagnosis are multimodal and include surgical resection, radiation, and chemotherapy. Significant advances in the understanding of the molecular pathology of GBM and associated cell signaling pathways have opened opportunities for new therapies for recurrent and newly diagnosed disease. Innovative treatments, such as tumor-treating fields (TTFields) and immunotherapy, give hope for enhanced survival...
October 1, 2016: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/27668385/optune%C3%A2-practical-nursing-applications
#11
Janlyn Murphy, Mary Ellen Bowers, Loretta Barron
BACKGROUND: After receiving U.S. Food and Drug Administration approval for the treatment of newly diagnosed glioblastoma (GBM) in 2015, following initial approval for treatment of recurrent GBM in 2011, Optune®, a device that uses tumor-treating fields (TTFields) therapy, continues to gain acceptance in the practice environment. OBJECTIVES: This article reviews how TTFields differ from traditional GBM treatment approaches and discusses the pivotal role nurses play in helping patients successfully use this therapy...
October 1, 2016: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/27664860/tumor-treating-fields-a-novel-treatment-modality-and-its-use-in-brain-tumors
#12
REVIEW
Andreas F Hottinger, Patricia Pacheco, Roger Stupp
Tumor treating fields (TTFields) are low-intensity electric fields alternating at an intermediate frequency (200kHz), which have been demonstrated to block cell division and interfere with organelle assembly. This novel treatment modality has shown promise in a variety of tumor types. It has been evaluated in randomized phase 3 trials in glioblastoma (GBM) and demonstrated to prolong progression-free survival (PFS) and overall survival (OS) when administered together with standard maintenance temozolomide (TMZ) chemotherapy in patients with newly diagnosed GBM...
October 2016: Neuro-oncology
https://www.readbyqxmd.com/read/27628854/a-state-of-the-art-review-and-guidelines-for-tumor-treating-fields-treatment-planning-and-patient-follow-up-in-glioblastoma
#13
John Trusheim, Erin Dunbar, James Battiste, Fabio Iwamoto, Nimish Mohile, Denise Damek, Daniela A Bota, Jennifer Connelly
Tumor treating fields (TTFields) are an integral treatment modality in the management of glioblastoma and extend overall survival when combined with maintenance temozolomide in newly diagnosed patients. Complexities exist regarding correct selection of imaging sequences with which to perform TTFields treatment planning. Guidelines are warranted first, to facilitate treatment planning standardization across medical disciplines and institutions, to ensure optimal TTFields delivery to the tumor and peritumoral brain zone while maximizing patient safety, and also to mitigate the risk of premature cessation of a potentially beneficial treatment...
September 15, 2016: CNS Oncology
https://www.readbyqxmd.com/read/27561100/alternating-electric-fields-ttfields-in-combination-with-paclitaxel-are-therapeutically-effective-against-ovarian-cancer-cells-in-vitro-and-in-vivo
#14
Tali Voloshin, Mijal Munster, Roni Blatt, Anna Shteingauz, Paul C Roberts, Eva M Schmelz, Moshe Giladi, Rosa S Schneiderman, Einav Zeevi, Yaara Porat, Ze'ev Bomzon, Noa Urman, Aviran Itzhaki, Shay Cahal, Eilon D Kirson, Uri Weinberg, Yoram Palti
Long-term survival rates for advanced ovarian cancer patients have not changed appreciably over the past four decades; therefore, development of new, effective treatment modalities remains a high priority. Tumor Treating Fields (TTFields), a clinically active anticancer modality utilize low-intensity, intermediate frequency, alternating electric fields. The goal of this study was to evaluate the efficacy of combining TTFields with paclitaxel against ovarian cancer cells in vitro and in vivo. In vitro application of TTFields on human ovarian cancer cell lines led to a significant reduction in cell counts as compared to untreated cells...
December 15, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27339426/electrical-stimulation-towards-melanoma-therapy-via-liquid-metal-printed-electronics-on-skin
#15
Jun Li, Cangran Guo, Zhongshuai Wang, Kai Gao, Xudong Shi, Jing Liu
BACKGROUND: We proposed a method of using electrical stimulation for treatment of malignant melanoma through directly spray-printing liquid metal on skin as soft electrodes to deliver low intensity, intermediate frequency electric fields. METHODS: With patterned conductive liquid metal components on mice skin and under assistance of a signal generator, a sine wave electrical power with voltage of 5 V and 300 kHz could be administrated on treating malignant melanoma tumor...
December 2016: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/27198350/215tip-stellar-a-phase-ii-trial-of-ttfields-with-chemotherapy-for-first-line-treatment-of-malignant-mesothelioma
#16
F Grosso, J Mądrzak, L Crinò, A Chella, U Weinberg, G L Ceresoli
No abstract text is available yet for this article.
April 2016: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/27198342/206tip-metis-a-phase-iii-study-of-radiosurgery-with-ttfields-for-1-10-brain-metastases-from-nsclc
#17
U Weinberg, O Farber, Z Bomzon, M Giladi, E D Kirson
No abstract text is available yet for this article.
April 2016: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/27198330/194tip-lunar-phase-iii-study-of-front-line-chemotherapy-with-ttfields-for-advanced-squamous-nsclc
#18
U Weinberg, O Farber, M Giladi, Z Bomzon, E D Kirson
No abstract text is available yet for this article.
April 2016: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/27076281/assessment-of-early-response-to-tumor-treating-fields-in-newly-diagnosed-glioblastoma-using-physiologic-and-metabolic-mri-initial-experience
#19
Suyash Mohan, Sanjeev Chawla, Sumei Wang, Gaurav Verma, Aaron Skolnik, Steven Brem, Katherine B Peters, Harish Poptani
Tumor-treating fields (TTFields) is a novel antimitotic treatment modality for patients with glioblastoma. To assess response to TTFields, a newly diagnosed patient with glioblastoma underwent diffusion, perfusion and 3D echo-planar spectroscopic imaging prior to initiation of TTFields plus temozolamide (baseline) and at 1- and 2-month follow-up periods. Increased mean diffusivity along with decreased fractional anisotropy and maximum relative cerebral blood volume were noted at 2 months relative to baseline suggesting inhibition of tumor growth and angiogenesis...
July 2016: CNS Oncology
https://www.readbyqxmd.com/read/26917587/ttfields-where-does-all-the-skepticism-come-from
#20
EDITORIAL
Wolfgang Wick
No abstract text is available yet for this article.
March 2016: Neuro-oncology
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