Practice

Celltrion presented new research that demonstrates that a formulation of its infliximab biosimilar intended for subcutaneous administration is comparable to the intravenously administered option. The phase 1 study compared the subcutaneous formulation—which can be self-administered—with the FDA-approved intravenous formulation in patients with active Crohn disease (CD).

Research published in conjunction with the 2018 American Society of Clinical Oncology Annual Meeting presented new findings on the use granulocyte-colony stimulating factor agents in treating febrile neutropenia (FN) and in peripheral stem cell mobilization.

On June 1, drug maker Apotex announced that its Apobiologix division has received approval from Health Canada for its pegfilgrastim biosimilar, Lapelga. Lapelga is the first pegfilgrastim biosimilar to be approved in a highly regulated territory.

During the 2018 American Society of Clinical Oncology's Annual Meeting, researchers presented findings on 3 biosimilar trastuzumab products: Samsung Bioepis’ SB3, Agmen’s ABP 980, and Biocad’s Herticad.

This week, the FDA approved an expanded indication of the Janus kinase (JAK) inhibitor tofacitinib (Xeljanz) to include adults with moderate to severe ulcerative colitis. Tofacitinib is the first oral medicine approved for long-term use in UC, and provides an alternative to anti–tumor necrosis factor (anti-TNF) drugs that must be injected or infused.

Boehringer Ingelheim’s (BI) adalimumab biosimilar, Cyltezo, can be successfully self-administered—via auto-injector—by most patients with rheumatoid arthritis (RA).

In a new paper, researchers sought to describe how much the European Union is overspending on neovascular age-related macular degeneration treatment by relying on ranibizumab and aflibercept rather than bevacizumab in ophthalmology.

While it is already known that obesity may contribute to an increased risk developing some immune-mediated inflammatory diseases, as well as more severe disease activity and a higher burden of hospitalization, a new review found that obesity is also a predictor of inferior response to anti–tumor necrosis factor (anti-TNF) agents.

The authors of a recent study report that the addition of a disease-modifying anti-rheumatic drug (DMARD) or a switch to ustekinumab showed greater efficacy than changing anti–tumor necrosis factor (anti-TNF) treatments in patients with inflammatory bowel disease (IBD) who develop paradoxical arthritis.

This week, Drugs published a letter to the editor concerning a systematic literature review that showed a low risk of safety concerns or loss of efficacy after switching from a reference biologic product to a biosimilar. The letter’s authors said that switching is a beneficial topic for exploration but criticized the review for “over-interpretation of the available data.”

Currently, beyond the evaluation of a patient’s 28-joint disease activity score (DAS28), there are no standard methods to determine whether patients will respond well to dose reduction of anti–tumor necrosis factor therapy.

One of the main concerns attributed to anti–tumor necrosis factor (anti-TNF) treatment during pregnancy is the ability for the therapy to be transferred to the fetus. Complete immunoglobulin G (IgG) antibodies, both maternal and therapeutic, are delivered to the placenta during pregnancy naturally. This fact is important for patients who are treated with adalimumab, golimumab, and infliximab, which are complete IgG1 anti-TNF antibodies, and therefore transferred easily to the placenta.

Researchers involved in the Persephone phase 3 randomized clinical trial of 4089 women with HER2-positive early breast cancer found that 6 months of trastuzumab treatment was not inferior to the current standard.

Although the benefits of originator infliximab have been deemed to outweigh the potential harm during pregnancy, in a recent observational study, researchers looked to evaluate whether biosimilar infliximab therapy was associated with any new safety risks.

At the 58th Annual Scientific Meeting of the British Society for Haematology, held from April 16-18, 2018, in Liverpool, United Kingdom, researchers from 2 hospitals reported on the use of biosimilar rituximab in real-world settings.

In an effort to accurately predict an individual patient’s response after starting or tapering an anti–tumor necrosis factor (anti-TNF) agent, researchers from the Netherlands, reporting findings in Rheumatic and Musculoskeletal Diseases, explain that calprotectin has some predictive value for clinical response in patients starting anti-TNF treatment, although it was not predictive of clinical response after tapering.

In treating ankylosing spondylitis, anti–tumor necrosis factor (anti-TNF) drugs produce a response in approximately 60% of patients. For the 40% of patients who do not respond to treatment, previous studies have suggested that patient characteristics, including sex, may play a role.

The Center for Biosimilars® recaps the top 5 articles for the week of May 7, 2018.

In an interview with The Center for Biosimilars®, Dennis Cryer, MD, physician co-convener of the Biologics Prescribers Collaborative (BPC), said, "We still feel that much of the effectiveness of therapy is the relationship and the trust that can be developed between the physician and the patient."

Antibodies that deplete B cells, including rituximab, have demonstrated efficacy in the treatment of neurological conditions such as progressive multiple sclerosis and neuromyelitis optica spectrum disorder. The efficacy of these treatments hinges on adequate B-cell depletion, but there is a lack of standardization in treatment and monitoring protocols to guide clinical practice.

Though the use of biosimilars is becoming more common in the adult arthritis space, there has been little research on their use in pediatric patients. Identifying the need for further analysis in this population, researchers conducted a study investigating biosimilar use in children and young adults with juvenile idiopathic arthritis (JIA). The results were presented last week at the British Society for Rheumatology’s Annual Conference held in Liverpool, United Kingdom.

Some cervical cancer patients with advanced or recurrent disease suffer from anaphylaxis after taxane- or platinum-based therapy, and there is no standard treatment for progressive disease that develops during or shortly after platinum-based chemotherapy. Doctors and patients have therefore sought the development of a non-taxane, non-platinum regimen for recurrent cervical cancer.

Yesterday, at the British Society for Rheumatology’s Annual Conference held in Liverpool, United Kingdom, researchers presented a study that investigated the clinical outcomes of a multi-disciplinary switch to biosimilar etanercept from the reference product in patients with rheumatoid arthritis.

While treatment with trastuzumab is the standard of care for HER2-positive locally advanced or metastatic breast cancer and gastric cancer, data on long-term use of the biologic are lacking, and cardiac risk related to trastuzumab has posed concerns.

The Center for Biosimilars® recaps the top 5 articles for the week of April 30, 2018.

Filgrastim, used to prevent febrile neutropenia (FN) in patients undergoing chemotherapy, is the first drug in the United States to have a biosimilar approved. While the biosimilar filgrastim was approved in 2015, few studies have compared the real-world incidence of FN, healthcare resource utilization, and costs among US patients using the reference product (Neupogen) and those using the approved biosimilar (Zarxio).

While systemic inflammation is a potential biological mechanism underlying both Parkinson disease (PD) and inflammatory bowel disease (IBD), clinical data on comorbid PD and IBD are few. In a new study published in JAMA Neurology, researchers report on a retrospective cohort study that assessed the incidence of PD among patients with IBD and sought to identify whether anti–tumor necrosis factor (anti-TNF) therapy for IBD alters the risk of PD.

At the Academy of Managed Care Pharmacy’s Managed Care & Specialty Pharmacy Annual Meeting, held April 23 to 26, in Boston, Massachusetts, several research teams presented posters relevant to the US adoption of biosimilars.

Retinal vein occlusion (RVO) is a prevalent, vision-threatening disease, of which macular edema is a common complication. Standard treatment for RVO-associated macular edema involves intravitreal treatment with anti–vascular endothelial growth factor (anti-VEGF) agents such as ranibizumab, bevacizumab, or aflibercept. Despite success with these agents in clinical trials, anti-VEGF agents may be administered less frequently in clinical practice than in studies.

A case series was recently published in CNS Oncology that investigated whether adult pilocytic astrocytoma—a rare and highly vascular tumor—is responsive to bevacizumab treatment.