Oncology

Beth Wittmer, RN, OCN, senior manager of care management at Florida Cancer Specialists, addresses how nurses are being educated about biosimilars.

During last month’s European Society for Medical Oncology Asia 2018 annual meeting, held in Singapore from November 23 to November 25, researchers presented data demonstrating the biosimilarity of QL1101 with reference bevacizumab (Avastin).

Mylan and Biocon have received final approval from the European Commission to market their trastuzumab biosimilar, Ogivri, referencing Herceptin.

Chinese biologics developer Innovent has announced that its proposed bevacizumab candidate, IBI305, has met its primary end points in 2 randomized, head-to-head clinical trials that compared the biosimilar to the brand-name bevacizumab (Avastin).

Since the advent of biosimilar filgrastim, patient access to the prophylaxis of chemotherapy-induced febrile neutropenia has improved in many regulatory territories, yet concerns remain about whether the United States is keeping pace with the rest of the world in biosimilar uptake and associated patient access.

Samsung Bioepis has announced that a 1-year follow-up study comparing event-free survival in patients treated with SB3, a biosimilar trastuzumab (approved in Europe as Ontruzant) showed that the biosimilar has similar safety and efficacy profiles to the reference Herceptin.

There are several options for the prophylaxis of febrile neutropenia (FN), including pegfilgrastim delivered in an on-body injector (OBI), a single injection of pegfilgrastim, and daily injections with reference filgrastim or Sandoz’ biosimilar filgrastim.

The launch of biosimilar rituximab is an eagerly awaited event among US healthcare stakeholders who are cognizant of the high cost of intravenously (IV) administered rituximab in treating non-Hodgkin lymphoma (NHL). At the same time, another innovation in rituximab delivery—a subcutaneously administered rituximab formulation—has the potential to save both cost and time.

The study’s authors concluded that, at the median follow-up of 23 months, the data demonstrated comparable progression-free survival, sustained response, and overall survival between both the biosimilar and the reference product.

For health systems like the Veterans Health Administration (VHA), where controlling costs while providing high-quality care is of heightened concern, achieving the best value for money in the prophylaxis of neutropenia can help to control the cost of cancer care.

Celltrion’s CT-P10, a biosimilar rituximab that was FDA approved under the brand name Truxima in November 2018, is already in wide use for a host of indications in many regulatory territories. During this week’s 60th Annual Meeting and Exposition of the American Society of Hematology in San Diego, California, multiple research teams are reporting data that underscore the safety and efficacy of CT-P10 in hematological conditions.

In 2016, the Saskatchewan Cancer Agency switched from the brand-name filgrastim, Neupogen, to a biosimilar, Apotex’s Grastofil, for stem cell mobilization prior to autologous stem cell transplants. In a study presented at the American Society of Hematology’s Annual Meeting, researchers sought to determine the safety and efficacy of using a biosimilar for this setting.

Patients who are candidates for hematopoietic stem cell transplantation (AHSCT) require adequate collection of stem cells, and granulocyte colony-stimulating factor agents (G-CSFs) are typically used for stem cell mobilization while plerixafor is used to increase the yield of mobilized stem cells. While the biosimilar filgrastim agent Zarxio has become a more widely used, cost-saving G-CSF option in this context, little research has been conducted on whether the use of the biosimilar rather than its reference, Neupogen, has an impact on plerixafor use in patients undergoing AHSCT.

The researchers concluded that the efficacy, safety, immunogenicity, pharmacokinetics, and pharmacodynamics of PF-05280586 and the reference were similar at the conclusion of the study at week 26.

Earlier this week, Daiichi Sankyo announced that it has launched its biosimilar trastuzumab, trastuzumab BS, referencing Herceptin, in Japan.

The FDA has approved Celltrion and Teva’s rituximab biosimilar, Truxima (rituximab-abbs).

Sandoz announced today that the European Commission has granted a marketing authorization for its pegfilgrastim biosimilar, Ziextenzo, referencing Neulasta.

The European Commission has granted a marketing authorization to Cinfa Biotech and Mundipharma’s biosimilar pegfilgrastim, Pelmeg, for all indications of the reference product, Neulasta.

Bevacizumab, an anti–vascular endothelial growth factor treatment for which 1 biosimilar has been approved to date, has been shown to improve quality of life for patients with glioblastoma—and to delay disease progression—but has not prolonged patients’ overall survival. However, recent research suggests that using 4 older drugs together with bevacizumab could provide a more effective treatment protocol.

Some studies have found that granulocyte colony-stimulating factor (G-CSF) therapies are underused for the prophylaxis of febrile neutropenia (FN) in Europe, but the widespread availability of cheaper biosimilar options has led to increased use. A new study, published in BMC Cancer, sought to examine the use of the biosimilar filgrastim, Zarzio, in relationship to European Organisation for Research and Treatment of Cancer (EORTC) guidelines.

The researchers say that their data were consistent with the pharmacokinetic equivalence previously demonstrated in a single-dose PK study that included 202 healthy adult men in the United States and European Union, and thus add to the evidence of ABP-215 as a high-quality biosimilar to bevacizumab for use in Japan.

Among long-term responders, first-line bevacizumab-based therapy is more effective in patients with HER2-negative metastatic breast cancer (MBC) who were not previously treated with taxanes, a recent Spanish study suggests.

During this week’s International Society for Pharmacoeconomics and Outcomes Research 2018 European meeting, the role of biosimilars in oncology is the subject of several research presentations, all of which underscore the importance of these agents in increasing patient access and driving down costs.

During the Community Oncology Alliance Payer Summit, held October 29-30, 2018, The Center for Biosimilars® had the opportunity to sit down with several oncologists to discuss their opinions on and experiences with biosimilars.

In its investor call on Thursday, Coherus Biosciences revealed that it will launch its biosimilar pegfilgrastim, Udenyca, at a 33% discount to the reference Neulasta.

While US patients with HER2-positive cancers do not have an available subcutaneous trastuzumab option, Brazil, Canada, and the European Union have an approved product that has been shown in a phase 3 trial to be noninferior to intravenous trastuzumab.

Given the high burden of cancer in the senior population, and given the increasingly high cost of cancer care, there is a growing interest in value-based oncology care payment models, particularly within CMS.

A recent study presented at the Annual Scientific Meeting of the British Blood Transfusion Society, held in Brighton, United Kingdom from October 3-5, 2018, sought to determine the impact of introducing biosimilar filgrastim (sold in the United Kingdom as Zarzio) on the number of patients who were able to achieve target CD34 yield in peripheral blood stem cell mobilization (PBCM).

Pegfilgrastim, a long-acting granulocyte-colony stimulating factor (G-CSF) therapy, has become a key product for the prophylaxis and treatment of febrile neutropenia, and biosimilar options have the potential to reduce the high cost of pegfilgrastim therapy. At the European Society for Medical Oncology 2018 Congress, held October 19-23, 2018, in Munich, Germany, 2 research teams presented on studies assessing proposed pegfilgrastim biosimilar products.

Anemia is a common complication for patients who are undergoing chemotherapy, and one that has implications for patients’ quality of life, especially with respect to fatigue. During the European Society for Medical Oncology 2018 Congress, held October 19-23, 2018, in Munich, Germany, Jérôme Desrame, MD, reported on results of the CIROCO study, which assessed fatigue in patients with chemotherapy-induced anemia who were treated with biosimilar epoetin alfa.