Oncology

This week, Amgen announced that the European Medicines Agency’s (EMA) Committee for Medicinal Products for Human Use (CHMP) has issued a positive opinion recommending a label variation for its reference pegfilgrastim to now include the branded Neulasta Onpro Kit.

India-based drug manufacturer Cadila Healthcare has announced that it is planning to file a Biologics License Application (BLA) for its biosimilar pegfilgrastim with the FDA by the end of 2019. To date, no developer has been successful in gaining regulatory approval in the United States or European Union for a biosimilar of the reference pegfilgrastim.

Treatment with rituximab plus a regimen of cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) for patients with diffuse large B-cell lymphoma (DLBCL) has proven efficacy in clinical trials, few long-term data are available for the use of this combination in patients in a real-world setting.

Because tumor necrosis factor-alfa (TNF) has been identified as possessing tumor-promoting properties in multiple malignant tumors, anti-TNF therapies have been proposed as a potential combination treatment that could enhance the effects of chemotherapy in patients with colon cancer.

In an animal model of bleomycin-induced lung toxicity, filgrastim increased alveolar neutrophil recruitment, pulmonary edema, and lung myeloperoxidase activity. That finding led to concerns about whether filgrastim could increase pulmonary toxicity when used together with adriamycin, bleomycin, vinblastine, and dacarbazine regimens.

An editorial recently published in The BMJ discusses addresses 1 of the most commonly misunderstood biosimilar concepts: extrapolation.

This week, the American Society of Clinical Oncology (ASCO) released a new statement that seeks to offer clinicians guidance on the use of biosimilars in oncology as a wave of patent expirations is expected to bring more anti-cancer and supportive care biosimilars to the US market.

A study recently published in the European Journal of Hematology reports diffuse large B-cell lymphoma (DLBCL)–specific findings from MONITOR-GCSF, a pan-European, multicenter, prospective, observational study that attempts to describe the treatment patterns and clinical outcomes of patients who received biosimilar filgrastim in the prophylaxis of chemotherapy-induced neutropenia and febrile neutropenia.

Hope Rugo, MD, director of the breast oncology clinical trials program at the University of California at San Francisco, disucusses the conversations she is having and expects to have with fellow prescribers about biosimilars in oncology.

Celltrion’s head of strategy and operations, Ho Ung Kim, told reporters this week that the intravenous Herzuma could be launched at as much as a 50% discount to a subcutaneously administered presentation of the reference Herceptin.

Higher levels of cancer-related financial toxicity are associated with decreased quality of life, poorer treatment adherence, and poorer survival for adult patients with cancer.

The early weeks of 2018 held substantial developments for oncology biosimilars in the United States and around the world, with new products on the horizon and evolving challenges in bringing these drugs to the marketplace.

A study newly published in the Journal of Clinical Oncology found that SB3, a proposed trastuzumab biosimilar being developed by Samsung Bioepis, demonstrated equivalence with European-sourced reference trastuzumab (Herceptin) in terms of breast pathologic complete response (bpCR) rate. Safety and immunogenicity for the 2 drugs were also similar.

Zarxio, a biosimilar filgrastim approved in the United States in 2015, was demonstrated to have no clinically meaningful differences from its reference in a randomized clinical trial setting, but data on its effectiveness in preventing febrile neutropenia (FN) a real-world setting have been limited thus far.

Multiple drug makers are in the process of developing biosimilar candidates to challenge the brand-name Erbitux’s sales.

A study published yesterday in Cancer Chemotherapy and Pharmacology reports that pharmacokinetic (PK) and pharmacodynamic (PD) data from a randomized, double-blind, phase 3 clinical study show similarity between mAbxience’s proposed rituximab biosimilar, RTXM83, and its reference, MabThera, using a population PK model approach.

Pfizer announced today that PF-05280586, the company’s proposed biosimilar to reference rituximab (Rituxan, MabThera), has been shown to be equivalent to the reference in overall response rate for the first-line treatment of patients with CD20-positive, low tumor burden follicular lymphoma.