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Rituximab Biosimilar

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https://www.readbyqxmd.com/read/30010481/comparison-of-biosimilar-ct-p10-and-innovator-rituximab-in-patients-with-rheumatoid-arthritis-a-randomized-controlled-phase-3-trial
#1
Won Park, Ljubinka Božić-Majstorović, Dragana Milakovic, Alfredo Berrocal Kasay, Elias Chalouhi El-Khouri, Fedra Irazoque-Palazuelos, Francisco Fidencio Cons Molina, Pavel Shesternya, Pedro Miranda, Francisco G Medina-Rodriguez, Piotr Wiland, Slawomir Jeka, Jose Chavez-Corrales, Olena Garmish, Thomas Linde, Dmytro Rekalov, Pawel Hrycaj, Andreas Krause, Natalia Fomina, Olena Piura, Mauricio Abello-Banfi, Chang-Hee Suh, Seung Cheol Shim, Sang Joon Lee, Sung Young Lee, Sung Hwan Kim, Dae Hyun Yoo
This multinational, randomized, double-blind trial, (ClinicalTrials.gov identifier NCT02149121) was designed to demonstrate equivalence in pharmacokinetics and efficacy between CT-P10 and innovator rituximab (RTX) in patients with rheumatoid arthritis (RA). Adults with active RA were treated with CT-P10, United States-sourced RTX (US-RTX; Rituxan®), or European Union-sourced RTX (EU-RTX; MabThera®) at weeks 0 and 2. The co-primary pharmacokinetic endpoints were area under the serum concentration-time curve (AUC) from time zero to last measurable concentration (AUC0-last ), AUC from time zero to infinity (AUC0-∞ ), and maximum concentration (Cmax ) after two infusions...
July 16, 2018: MAbs
https://www.readbyqxmd.com/read/29915719/past-present-and-future-of-rituximab-the-world-s-first-oncology-monoclonal-antibody-therapy
#2
REVIEW
Timothy M Pierpont, Candice B Limper, Kristy L Richards
Rituximab is a chimeric mouse/human monoclonal antibody (mAb) therapy with binding specificity to CD20. It was the first therapeutic antibody approved for oncology patients and was the top-selling oncology drug for nearly a decade with sales reaching $8.58 billion in 2016. Since its initial approval in 1997, it has improved outcomes in all B-cell malignancies, including diffuse large B-cell lymphoma, follicular lymphoma, and chronic lymphocytic leukemia. Despite widespread use, most mechanistic data have been gathered from in vitro studies while the roles of the various response mechanisms in humans are still largely undetermined...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29765782/biosimilars-have-arrived-rituximab
#3
REVIEW
Maria Greenwald, John Tesser, K Lea Sewell
A biosimilar is a biologic product that is highly similar to a licensed biologic ("originator") such that there are no clinically meaningful differences in safety, purity, or potency between the biosimilar and the originator. As patent protection and data exclusivity for the biologic rituximab expire, several potential biosimilars to rituximab are in development, which could soon lead to the availability of numerous rituximab biosimilars. Biosimilars are evaluated using thorough and rigorous analyses of the potential biosimilar versus the originator biological to confirm similar structure, function, and clinical efficacy as well as safety...
2018: Arthritis
https://www.readbyqxmd.com/read/29741753/a-tale-of-two-antibodies-obinutuzumab-versus-rituximab
#4
REVIEW
Ciara L Freeman, Laurie H Sehn
While rituximab has dramatically improved outcomes for patients with CD20+ malignancies for two decades, responses are not universal and resistance can develop. Obinutuzumab was developed to potentiate activity and overcome resistance. Pre-clinical data suggests obinutuzumab is superior to rituximab at effecting B cell depletion; however recent phase III clinical trial results have been mixed. The decision of which antibody to employ will probably be further complicated by the approval of a subcutaneous preparation of rituximab and several anti-CD20 biosimilars...
July 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29699853/monoclonal-antibody-biosimilars-in-oncology-critical-appraisal-of-available-data-on-switching
#5
Paul Declerck, Georgios Bakalos, Elias Zintzaras, Bettina Barton, Thomas Schreitmüller
PURPOSE: With the introduction of biosimilars of anticancer monoclonal antibodies (mAbs) in oncology, physicians are potentially confronted with the question whether it is clinically adequate to switch patients who are clinically stable on treatment with the reference product to a newly available biosimilar (or vice versa/from 1 biosimilar to another). For a proper impact assessment of switching, robust, product-specific, and clinically relevant evidence should be required, ideally including data from appropriately designed switching studies...
May 2018: Clinical Therapeutics
https://www.readbyqxmd.com/read/29692005/an-extension-study-of-pf-05280586-a-potential-rituximab-biosimilar-versus-rituximab-in-subjects-with-active-rheumatoid-arthritis
#6
Stanley B Cohen, Rubén Burgos-Vargas, Paul Emery, Bo Jin, Carol Cronenberger, María-Dolores Vázquez-Abad
OBJECTIVE: This extension study provided continued treatment to subjects with active rheumatoid arthritis who had participated for ≥16 weeks in a pharmacokinetic similarity study of PF-05280586 (potential rituximab biosimilar). Objectives were to evaluate overall pharmacokinetics, pharmacodynamics, immunogenicity, safety, and tolerability of PF-05280586 after transition from a licensed rituximab product to PF-05280586, and followup of biomarker and efficacy assessments. METHODS: Subjects were offered ≤3 additional courses of treatment of PF-05280586, with or without a single transition from rituximab EU (rituximab-EU) or US (rituximab-US) to PF-05280586...
April 25, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29622869/infusion-related-hypersensitivity-reactions-with-bio-similar-anti-cd-20-monoclonal-antibody-rituximab-in-indian-patients-a-retrospective-study
#7
Gaurav Prakash, Pankaj Malhotra, Alka Khadwal, Deepesh Lad, Vikas Suri, Savita Kumari, Subhash Varma
There is paucity of data on infusion related hypersensitivity reactions (IRHR) pattern of bio-similar rituximab in B-cell lymphoma patients. As bio-similar molecules are independently developed monoclonal antibodies, they are likely to differ in immunogenicity and therefore, the hypersensitivity data of the innovator rituximab may not be directly applicable to patients treated with the biosimilar rituximab molecule. We analysed our data of 256 patients of B cell lymphoid neoplasm who received bio-similar rituximab (Reditux) based chemo-immunotherapy for their treatment...
April 2018: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29469653/analytical-similarity-assessment-of-rituximab-biosimilar-ct-p10-to-reference-medicinal-product
#8
Kyoung Hoon Lee, Jihun Lee, Jin Soo Bae, Yeon Jung Kim, Hyun Ah Kang, Sung Hwan Kim, So Jung Lee, Ki Jung Lim, Jung Woo Lee, Soon Kwan Jung, Shin Jae Chang
CT-P10 (Truxima™) was recently approved as the world's first rituximab biosimilar product in the European Union (EU) and South Korea. To demonstrate biosimilarity of CT-P10 with the reference medicinal product (RMP), extensive 3-way similarity assessment has been conducted between CT-P10, EU-Rituximab and US-Rituximab, focusing on the physicochemical and biological quality attributes. A multitude of state-of-the-art analyses revealed that CT-P10 has identical primary and higher order structures compared to the original product...
April 2018: MAbs
https://www.readbyqxmd.com/read/29469072/long-term-outcome-of-diffuse-large-b-cell-lymphoma-impact-of-biosimilar-rituximab-and-radiation
#9
P Ganesan, T G Sagar, K Kannan, V Radhakrishnan, S Rajaraman, A John, S Sundersingh, V Mahajan, T S Ganesan
INTRODUCTION: Rituximab (R)-CHOP improves survival over CHOP in diffuse large B-cell lymphoma (DLBCL). The availability of biosimilar rituximab in India has increased access of this drug. We report on the impact of treatment on outcomes with special emphasis on the impact of biosimilar rituximab and radiation. METHODS: Outcomes of adults (age 15-60 years) treated with CHOP+/- Rituximab radiation were analyzed retrospectively to look at baseline features, treatment, and event-free and overall survival (EFS and OS)...
April 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29383440/-revised-version-of-the-statement-by-the-dgrh-on-biosimilars-update-2017
#10
J Braun, H M Lorenz, U Müller-Ladner, M Schneider, H Schulze-Koops, Ch Specker, A Strangfeld, U Wagner, T Dörner
The treatment of rheumatic diseases with bioloics has significantly improved the prognosis of patients. Currently, there are 13 preparations available in Germany for the treatment of patients with inflammatory rheumatic diseases. These original preparations generally have-depending on the individual country-15 years of patent protection. As soon as the patent has expired, approved biosimilars can be brought into use. For the approval of a biosimilar, authorities such as the European Medical Agency or the American Food and Drug Administration require proof of the best possible comparability with respect to efficacy and safety in comparison to the original or reference product...
February 2018: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/29362903/comparative-assessment-of-pharmacokinetics-and-pharmacodynamics-between-rtxm83%C3%A2-a-rituximab-biosimilar-and-rituximab-in-diffuse-large-b-cell-lymphoma-patients-a-population-pk-model-approach
#11
Myrna Candelaria, Derlis Gonzalez, Francisco Javier Fernández Gómez, Alexandra Paravisini, Ana Del Campo García, Luis Pérez, Bernardo Miguel-Lillo, Susana Millán
PURPOSE: The main objective was to quantify any potential differences in pharmacokinetic (PK) parameters (AUC and Cmax ) between RTXM83, a proposed rituximab biosimilar, and its reference product, using a population PK model approach. METHODS: Rituximab PK and PD data were obtained from a randomized, double-blind, phase III clinical study (RTXM83-AC-01-11) in patients with diffuse large B-cell lymphoma (DLBCL) that received 375 mg/m2 intravenous RTXM83 or its reference product with CHOP regimen, every 3 weeks, for six cycles...
March 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29317666/single-very-low-rituximab-doses-in-healthy-volunteers-a-pilot-and-a-randomized-trial-implications-for-dosing-and-biosimilarity-testing
#12
Christian Schoergenhofer, Michael Schwameis, Christa Firbas, Johann Bartko, Ulla Derhaschnig, Robert M Mader, Raute Sunder Plaßmann, Petra Jilma-Stohlawetz, Kalpna Desai, Priya Misra, Ulrich Jäger, Bernd Jilma
There are no  dose-finding trials available for rituximab that could guide dosing in non-malignant diseases. We hypothesized that currently used doses (≥375 mg/m2 ) exceed several hundred-fold the half-maximal effective dose, which is most sensitive for detecting putative differences between biosimilars and important for dose finding. In an open label, exploratory trial healthy volunteers received single infusions of rituximab at doses of 0.1, 0.3 or 1.0 mg/m2 . Subsequently, in a double-blind, randomized trial healthy volunteers received single infusions of two rituximab products at doses of 0...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29212732/the-role-of-rituximab-in-chronic-lymphocytic-leukemia-treatment-and-the-potential-utility-of-biosimilars
#13
REVIEW
Jennifer R Brown, Florence Cymbalista, Jeff Sharman, Ira Jacobs, Pilar Nava-Parada, Anthony Mato
Chronic lymphocytic leukemia (CLL) is managed with observation for asymptomatic or clinically silent disease; pharmacologic intervention is generally required for symptomatic patients with clinically significant adenopathy or cytopenia. In the front-line treatment of CLL, the current standard-of-care includes chemotherapy in combination with an anti-CD20 monoclonal antibody (e.g., rituximab, ofatumumab, or obinutuzumab) or ibrutinib as single agent. Despite the evolving treatment paradigm toward targeted therapy, it is likely that rituximab (plus chemotherapy), with or without targeted agents, will retain a significant role in CLL treatment...
March 2018: Oncologist
https://www.readbyqxmd.com/read/29209531/rituximab-biosimilars-open-new-horizons-in-immunotherapy
#14
EDITORIAL
Ulrich Jaeger
No abstract text is available yet for this article.
2017: ESMO Open
https://www.readbyqxmd.com/read/29200314/assessment-of-structural-and-functional-similarity-of-biosimilar-products-rituximab-as-a-case-study
#15
Neh Nupur, Nidhi Chhabra, Rozaleen Dash, Anurag S Rathore
Biosimilars are products that are similar in terms of quality, safety, and efficacy to an already licensed reference/ innovator product and are expected to offer improved affordability. The most significant source of reduction in the cost of development of a biosimilar is the reduced clinical examination that it is expected to undergo as compared to the innovator product. However, this clinical relief is predicated on the assumption that there is analytical similarity between the biosimilar and the innovator product...
January 2018: MAbs
https://www.readbyqxmd.com/read/29173192/the-ecstacy-of-gold-patent-expirations-for-trastuzumab-bevacizumab-rituximab-and-cetuximab
#16
Tasha R Serna-Gallegos, Christopher J La-Fargue, Krishnansu S Tewari
OBJECTIVE: Fully humanized monoclonal antibodies have revolutionized the treatment of many solid tumors, including ovarian, lung, colorectal, and breast cancer. Among the most widely used monoclonal antibodies in clinical oncology are cetuximab, trastuzumab, rituximab, and bevacizumab. METHODS: This is a review article focusing on the drug patents for cetuximab, trastuzumab, rituximab, and bevacizumab. RESULTS: These four monoclonal antibodies are used in both first and second line treatment regimens for multiple common malignancies...
2018: Recent Patents on Biotechnology
https://www.readbyqxmd.com/read/29061013/-the-development-of-biosimilars-in-oncology
#17
S Y Jiang, Y K Shi
With the extensive application in clinical practice, biological medicine plays a significant role in both treatment and supportive care in oncology. With the expiration of original drug patents, biosimilars emerge. The biosimilars are defined as biological drugs that are be highly similar but not identical to the biological reference. Their development and evaluation procedure are different from those of small molecular chemical generics. Biosimilars are expected to reduce the health care costs worldwide. The booming developments of biosimilars, such as rituximab, trastuzumab and bevacizumab in medical oncology can optimize the clinical strategies, offer patients more treatment options and reduce the medical expenditure...
October 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28985159/international-standards-for-monoclonal-antibodies-to-support-pre-and-post-marketing-product-consistency-evaluation-of-a-candidate-international-standard-for-the-bioactivities-of-rituximab
#18
Sandra Prior, Simon E Hufton, Bernard Fox, Thomas Dougall, Peter Rigsby, Adrian Bristow
The intrinsic complexity and heterogeneity of therapeutic monoclonal antibodies is built into the biosimilarity paradigm where critical quality attributes are controlled in exhaustive comparability studies with the reference medicinal product. The long-term success of biosimilars will depend on reassuring healthcare professionals and patients of consistent product quality, safety and efficacy. With this aim, the World Health Organization has endorsed the need for public bioactivity standards for therapeutic monoclonal antibodies in support of current controls...
January 2018: MAbs
https://www.readbyqxmd.com/read/28974989/rituximab-biosimilar-in-rheumatoid-arthritis-an-enhanced-evidence-assessment-to-evaluate-equivalence-with-the-originator-based-on-network-meta-analysis
#19
Marco Chiumente, Andrea Messori
No abstract text is available yet for this article.
October 2017: Therapeutic Advances in Musculoskeletal Disease
https://www.readbyqxmd.com/read/28950806/the-in-use-stability-of-the-rituximab-biosimilar-rixathon%C3%A2-riximyo%C3%A2-upon-preparation-for-intravenous-infusion
#20
William C Lamanna, Katharina Heller, Daniel Schneider, Raffaele Guerrasio, Veronika Hampl, Cornelius Fritsch, Martin Schiestl
Purpose The purpose of this study was to evaluate the in-use physicochemical and biological stability of the Sandoz rituximab biosimilar, marketed under the trade names Rixathon® and Riximyo® in the European Union, upon preparation for intravenous infusion. Methods Three batches of Rixathon®/Riximyo® in the final month of their 36 month shelf life were exposed to room temperature and light for 14 days to recapitulate a major temperature excursion. Samples were diluted to the lowest allowable concentration of 1 mg/mL in 0...
January 1, 2017: Journal of Oncology Pharmacy Practice
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