Gastroenterology

CMS announced negotiated prices for 10 drugs under the Inflation Reduction Act (IRA), sparking mixed reactions, with concerns that including drugs facing imminent biosimilar competition could hinder market access to lower-cost alternatives.

An analysis of subcutaneous biosimilar and originator tumor necrosis factor (TNF) inhibitors for rheumatic diseases found no significant differences in survival or discontinuation rates due to inefficacy or adverse events, with biosimilars showing lower overall discontinuation rates and higher retention rates.

Manitoba’s new policy means that all 10 Canadian provinces now have an initiative to boost biosimilar adoption and savings by transitioning patients on reference agents to biosimilar options.

Products in line to face biosimilar competition are projected to increase their list prices in advance, according to Vizient’s Pharmacy Market Outlook Report for Summer 2024.

Celltrion’s infliximab biosimilar CT-P13 demonstrates similar effectiveness and safety to the originator in biologic-naive patients with Crohn disease in a retrospective, real-world study in Japan.

Boehringer Ingelheim (BI) partners with GoodRx to offer its unbranded adalimumab biosimilar to patients at an exclusive low price; a new ustekinumab biosimilar launches in Europe; and Mexican officials approve a bevacizumab biosimilar.

Although biosimilars reduce drug purchasing costs for hospitals, it’s unclear whether those savings might be offset by increased health resource utilization following a non-medical switching initiative.

A phase 1 study demonstrated pharmacokinetic (PK) bioequivalence of the proposed ustekinumab biosimilar SB17 (Samsung Bioepis) to the EU- and US-sourced reference products.

Pyzchiva (ustekinumab-ttwe) is the third ustekinumab biosimilar to receive approval for the American market. It was also approved with interchangeability.

Two phase 3 trials in patients with inflammatory bowel disease (IBD) found higher clinical remission rates in those treated with the subcutaneous formulation of infliximab biosimilar CT-P13 compared with placebo as maintenance therapy following an induction phase of intravenous CT-P13.

Lack of knowledge and confidence in biosimilars continues despite growing education efforts, impacting provider willingness to prescribe biosimilar medicines and patient perceptions about their treatment and switching to a biosimilar.

A real-world study using data from the French National Health Data System, found no significant differences in treatment persistence or safety between anti-tumor necrosis factor (TNF)-α biosimilars and reference products in all indications of these biologics.

The FDA has issued an update to its guidance on requiring switching study data for biosimilars to be granted interchangeability, citing new science that shows these studies aren’t needed to establish biosimilar safety.

British Columbia's 2019 Biosimilars Initiative, which transitioned over 40,000 patients from costly reference biologics to biosimilars, saved around $732 million in 5 years, maintained comparable health outcomes, and reinvested the savings to improve the province's public payer program.

A real-world study of children and young adults with inflammatory bowel disease (IBD) switched from the infliximab reference product to a biosimilar concluded effectiveness was maintained over 12 months based on stable remission rates and biochemical markers.

Researchers reviewed real-world evidence on the safety and effectiveness of switching from tumor necrosis factor-α inhibitor originators to biosimilars in inflammatory bowel disease (IBD), prompted by mandatory switching policies in most Canadian provinces.

Posters from Digestive Disease Week 2024 look at how super-responders and pregnant patients with inflammatory bowel disease (IBD) react to treatment with subcutaneous infliximab and an infliximab biosimilar, respectively.

May proved to be a big month for biosimilar research, particularly in the gastroenterology space, where new data on infliximab and adalimumab products from conferences and journals alike demonstrated positive clinical results showcasing the safety of these products as well as switching to them.

A literature review revealed new data demonstrating that biosimilar-to-biosimilar switching is safe and effective.

Alvotech and Teva have launched Simlandi in the US; Xbrane Biopharma and STADA Arzneimitel partner with Valorum Biologics to bring a ranibizumab biosimilar to the US; Boehringer Ingelheim and Celltrion take steps to expand access to their respective adalimumab biosimilars.

Two posters from Digestive Disease Week found that switching patients with inflammatory bowel disease (IBD) from Remicade to an infliximab biosimilar did not impact clinical outcomes, with one study focusing on switches in pediatric patients and the other focusing on patients undergoing multiple switches.

Posters from Digestive Disease Week (DDW) on the ongoing LIBERTY-CD trial assessing Zymfentra, a subcutaneous infliximab product, compared with intravenous infliximab treatment in Crohn disease show the safety and efficacy of the product, as well as the impact of body mass index (BMI) on clinical outcomes.

A real-world study in Spain on patients with inflammatory bowel disease (IBD) found no meaningful changes in clinical or biochemical markers or differences in effectiveness between the adalimumab originator and the biosimilar MSB11022 (Idacio; Fresenius Kabi) in adalimumab-naïve patients.

Two posters from the Academy of Managed Care Pharmacy’s annual meeting provided hope that despite low uptake so far, adalimumab biosimilars can deliver on the promise of comparable safety and efficacy with the originator in multiple disease states, as well as cost savings.

In Canada, a study on patients with inflammatory bowel disease (IBD) switching to infliximab or adalimumab biosimilars found no change in clinical remission or antidrug antibodies after 24 weeks, but 13% experienced the nocebo effect, leading to one-fifth discontinuing therapy.

A review article summarizes the product attributes of reference and biosimilar adalimumab products, such as formulation with or without citrate, delivery volume, and needle gauge, relevant to patients’ experience of injection-site pain.

The FDA approved a high-concentration, citrate-free version of Boehringer Ingelheim’s Cyltezo (adalimumab-adbm), making it the second high-concentration adalimumab biosimilar to have an interchangeability designation.

The European Union gained a new ustekinumab biosimilar; Alvotech released positive results from a clinical trial evaluating a golimumab biosimilar and the reference products (Simponi and Simponi Aria), and Evernorth announced that it is set to cover an adalimumab biosimilar at zero cost to patients.

A review article summarized the totality of evidence supporting the approval of the adalimumab biosimilar GP2017 (Hyrimoz; Sandoz) in the United States and Europe.

In a survey of patients with autoimmune arthritis who had been switched from reference adalimumab (Humira) to biosimilar adalimumab-atto (Amjevita; Amgen), most reported preferring the biosimilar and had no concerns about switching.