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FDA approves isatuximab-irfc for multiple myeloma

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On March 2, 2020, the U.S. Food and Drug Administration (FDA) approved Sarclisa (isatuximab-irfc), in combination with pomalidomide and dexamethasone, for the treatment of adult patients with multiple myeloma who have received at least two prior therapies including lenalidomide and a proteasome inhibitor. FDA granted isatuximab Orphan Drug designation for multiple myeloma. Developed by Sanofi, isatuximab (SAR650984) is a chimeric IgG1 antibody directed against CD38 expressed on malignant plasma cells. The antibody acts through a combination of mechanisms, which may depend on the expression level of the target.

The approval was based on the results of the Phase 3 ICARIA-MM study (NCT02990338) demonstrating a statistically significant improvement in progression-free survival (PFS). This study included 307 patients with relapsed and refractory multiple myeloma who had received at least two prior therapies, including lenalidomide and a proteasome inhibitor. Patients who received Sarclisa in combination with pomalidomide and low-dose dexamethasone showed improvement in PFS, with a 40% reduction in the risk of disease progression or death compared to patients who received pomalidomide and dexamethasone. These patients also had an overall response rate of 60.4%. Patients who only received pomalidomide and low-dose dexamethasone had an overall response rate of 35.3%.

The European Medicines Agency is currently evaluating a marketing authorization application for isatuximab for the treatment of relapsed/refractory multiple myeloma.

The Antibody Society maintains a comprehensive table of approved monoclonal antibody therapeutics and those in regulatory review in the EU or US. The table, which is located in the Web Resources section of the Society’s website, can be downloaded in Excel format. Information about other antibody therapeutics that may enter regulatory review in 2020 can be found in ‘Antibodies to watch in 2020’.

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“Antibodies to Watch in 2020” is now online!

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This 2020 installment of the annual ‘Antibodies to Watch’ series documents the antibody therapeutics approved in 2019 and in regulatory review in the United States or European Union, as well as those in late-stage clinical studies, as of November 2019*.  At this time, a total of 5 novel antibody therapeutics (romosozumab, risankizumab, polatuzumab vedotin, brolucizumab, and crizanlizumab) had been granted a first approval in either the US or EU, and marketing applications for 13 novel antibody therapeutics (eptinezumab, teprotumumab, enfortumab vedotin, isatuximab, [fam-]trastuzumab deruxtecan, inebilizumab, leronlimab, sacituzumab govitecan, satralizumab, narsoplimab, tafasitamab, REGNEB3 and naxituximab) were undergoing review in these regions, which represent the major markets for antibody therapeutics. Also as of November 2019, 79 novel antibodies were undergoing evaluation in late-stage clinical studies. Of the 79 antibodies, 39 were undergoing evaluation in late-stage studies for non-cancer indications, with 2 of these (ublituximab, pamrevlumab) also in late-stage studies for cancer indications. Companies developing 7 (tanezumab, aducanumab, evinacumab, etrolizumab, sutimlimab, anifrolumab, and teplizumab) of the 39 drugs have indicated that they may submit a marketing application in either the US or EU in 2020. Of the 79 antibodies in late-stage studies, 40 were undergoing evaluation as treatments for cancer, and potentially 9 of these (belantamab mafodotin, oportuzumab monatox, margetuximab, dostarlimab, spartalizumab, 131I-omburtamab, loncastuximab tesirine, balstilimab, and zalifrelimab) may enter regulatory review in late 2019 or in 2020. Overall, the biopharmaceutical industry’s clinical pipeline of antibody therapeutics is robust, and should provide a continuous supply of innovative products for patients in the future.

*Note on key updates through December 20, 2019: 1) the US Food and Drug Administration granted accelerated approval to [fam-]trastuzumab deruxtecan (Enhertu) on December 20, 2019; 2) the US Food and Drug Administration granted accelerated approval to enfortumab vedotin-ejfv (Padcev) on December 18, 2019, bringing the total number of novel antibody therapeutics granted a first approval in either the US or EU during 2019 to 7; 3) the European Commission approved romosozumab on December 9, 2019; 4) the European Medicines Agency issued a positive opinion for brolucizumab; 5) Sesen Bio initiated a rolling biologics license application (BLA) on December 6, 2019; 6) GlaxoSmithKline submitted a BLA for belantamab mafodotin; 7) Macrogenics submitted a BLA for margetuximab; and 8) the status of the Phase 3 study (NCT04128696) of GSK3359609 in patients with head and neck squamous cell carcinoma was updated to recruiting from not yet recruiting.

“Antibodies to Watch in 2020” at PEGS Europe

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Over the past decade, the ‘Antibodies to Watch’ article series has documented the results of the global biopharmaceutical industry’s efforts to bring innovative antibody therapeutics to patients in need. Dr. Janice Reichert, Executive Director of The Antibody Society, offered a preview of the 2020 version on Wednesday November 20, 2019 during the ‘Developing Successful Antibody Products’ session at PEGS Europe.

‘Antibodies to watch in 2020’ includes updates on recent and anticipated events relevant to antibody therapeutics in clinical development. Data for antibody therapeutics that were first approved in either the US or EU during 2019, as well as several products first approved in Russia or India, were provided. Antibody therapeutics undergoing regulatory review by the Food and Drug Administration or the European Medicines Agency as of November 2019 were also discussed. Brief summaries of antibody therapeutics in late-stage clinical study that may progress to regulatory review in late 2019 or 2020, based on public disclosures by the sponsoring companies, were included. In concluding, Dr. Reichert noted that the late-stage clinical pipeline is robust, and she anticipated that more antibody therapeutics will be in late-stage studies in 2020 than any year previously documented. Remarkably, compared to 2010, the number of antibody therapeutics currently in late-stage studies has nearly tripled (to 75 antibody therapeutics).

The ‘Antibodies to watch in 2020′ presentation can be downloaded here.

The Antibody Society was very pleased to see so many of our corporate sponsors in attendance at PEGS Europe!

Student/Post-doc Poster Competition Winners Announced!

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Congratulations to our winners!

To recognize the research activities of promising student and postdoctoral attendees of Antibody Engineering & Therapeutics, The Antibody Society sponsors a competition for our student/postdoc members who submit posters for display at the meeting. Our judges select the best work based on originality, relevance and perceived impact on the field of antibody R&D.

This year, our judges selected one student and one postdoc winners who receive: 1) a complimentary registration to attend the conference and pre-conference sessions; 2) an opportunity to give a short oral presentation of their work in one of the conference sessions; and 3) support for travel expenses.

The winners of the contest are:

Timothy Czajka, University of New York at Albany (graduate student winner)
Poster title: RIP-Off: An Intrabody-based Strategy to Neutralize Ricin and other Ribosome-Inactivating Protein (RIP) Toxins

Kamal Joshi, Genentech (Postdoctoral research fellow winner)
Poster title: Toward Deeper Understanding of Bispecific Antibodies

Antibody Engineering & Therapeutics, the annual meeting of The Antibody Society, managed by KNect365, will be held December 10-13, 2019 in San Diego, CA.

Society members receive a 15% discount on the registration fee. Contact us at membership@antibodysociety.org for the code.

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