Development

A team of authors points out that, given batch-to-batch variation of all biologics that can be enhanced by manufacturing changes, no batches of biologics can be considered identical to one another. However, “they may be considered essentially equal and therapeutically indistinguishable,” which points to a clinically acceptable range of structural heterogeneity for any biologic.

China-based drug maker TOT Biopharm is developing TAB008 as a biosimilar of the reference bevacizumab, Avastin. TOT has recently indicated that it is in the midst of a phase 3 clinical trial of the biosimilar, and last month, results of a phase 1 study of the biosimilar were published in Frontiers in Pharmacology.

In a filing with the US Securities and Exchange Commission this month, Silicon Valley-based biotech company Revance Therapeutics said that it has entered into an amendment to a Collaboration and License Agreement with Mylan; the amendment extends the period of time Mylan has to decide whether to continue to develop and commercialize a biosimilar of Allergan’s onabotulinumtoxinA (Botox).

Instead of the “totality of the evidence” approach to biosimilars, authors of a new paper propose a “confirmation of sufficient likeness” paradigm.

Sandoz announced today that it has enrolled its first patient in a combined phase 1 and phase 3 study of its proposed denosumab biosimilar versus EU-authorized Prolia.

The FDA has released updated draft guidance on population pharmacokinetics (PK). The update follows draft guidance originally put forth by the agency in 1999.

Republic of Korea–based drug maker Celltrion announced this week that it is launching its first clinical trial of CT-P39, a proposed biosimilar omalizumab referencing Xolair. The company says that it plans to enter phase 3 trials in the first half of 2020 and has plans to commercialize the biosimilar by 2022.

The attributes for the N-glycan profile, FcγRIIIa binding activity, and relative antibody-dependent cell-mediated cytotoxicity (ADCC) activity for the reference trastuzumab resulted in reduced ADCC and FcγRIIIa binding activities.

NeuClone announced yesterday that it will initiate a phase 1 clinical trial of its ustekinumab biosimilar, referencing Stelara, in the second half of 2019. Ustekinumab, a human interleukin-12 and -23 antagonist, is approved by the FDA to treat plaque psoriasis, psoriatic arthritis, and Crohn disease.

Genor Biopharma, a China-based drug developer that is engaged in development of a number of biosimilars, has completed a phase 1 study of a proposed infliximab biosimilar, GB242, referencing Remicade.

While the United States awaits the launch of its first biosimilar rituximab, other regulatory jurisdictions have biosimilars referencing Rituxan already available on the market. One such product, available in South America, the Middle East, and Africa, is RTXM83, developed by drug maker mAbxience.

Between reference infliximab and biosimilar infliximab CT-P13 (Inflectra, Remsima), different recommendations exist for the clinical solutions. Recently, a research article, published in BioDrugs, assessed and compared the stability of the solutions prepared from the originator and the biosimilar using a set of characterization methods in line with International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use recommendations.

Korean drug maker Celltrion announced that it has completed enrollment in its phase 3 clinical trial of CT-P17.

Pfizer’s biosimilar filgrastim, Nivestym, was approved by the FDA in July 2018 and launched in the United States in October 2018. Among the data on which the approval was based were 3 comparative clinical assessments of the pharmacokinetics (PK), pharmacodynamics (PD), immunogenicity, and safety of the biosimilar versus the US-licensed reference filgrastim (Neupogen) in both male and female healthy volunteers. Results from these studies were reported in full last week.

During the second day of the Medicines for Europe 17th Biosimilar Medicines Conference, held March 28-29 in Amsterdam, the Netherlands, a panel of experts discussed the current state of the regulatory landscape and considerations for tailoring clinical programs in the years ahead.

During the BioTech Pharma third annual Biosimilars and Biologics Summit, held March 21 to 22 in Porto, Portugal, João Gonçalves, PhD, group leader and principal investigator at Research Institute for Medicines in Portugal, discussed ways in which biosimilar developers can anticipate—and avoid—issues with immunogenicity.

During the first day of the BioTech Pharma third annual Biosimilars and Biologics Summit, held March 21 to 22 in Porto, Portugal, Barbara Valenta-Singer, MD, chief medical officer of biosimilars at Fresenius-Kabi SwissBioSim, gave an expert perspective on the past 10-plus years of experience with biosimilars in the European and US contexts.

According to the investigators, their data support the further development of CT-P16 as a bevacizumab biosimilar.

Drug maker Alvotech announced today that it has begun enrollment for its phase 3 clinical study of AVT02, a proposed adalimumab biosimilar referencing Humira. Alvotech says that it has enrolled its first patient, and it plans to enroll approximately 400 total participants at 30 European sites in the study of AVT02 versus the reference product in patients with chronic plaque psoriasis.

Mylan revealed in its recent fourth quarter 2018 earnings call that it had an initial advisory meeting with the FDA regarding a proposed biosimilar onabotulinumtoxinA, referencing the brand-name Botox.

Regulators in China have approved the country’s first ever biosimilar, a rituximab product referencing Rituxan. The product, HLX01, was developed by Henlius and will be primarily used in the treatment of non-Hodgkin lymphoma. Regulatory requirements that were applied in the analysis of the drug, say investigators who took part in its development, will set a precedent for analytical similarity assessments of biosimilars in China going forward.

Newly published research reports on an analytical characterization of Samsung Bioepis’ biosimilar adalimumab, SB5, in comparison with the reference, Humira, using 3 different guidelines, showed that the 2 products are largely similar, and any of the minor differences are not clinically meaningful.

A recent study looked at the long-term stability of CT-P6, a trastuzumab biosimilar referencing Herceptin, to see if it had the same stability as the reference product.

Biosimilar developer Samsung Bioepis, a partnership between Samsung BioLogics and Biogen, has announced a new licensing agreement with the private equity firm C-Bridge Capital that will allow the drug maker to expand its reach into mainland China.

One emerging method to monitor potential differences is to apply aptamers: single-stranded DNA or RNA oligonucleotides. Aptamers can bind to various targets, and because they have a defined fold that can recognize a target with high affinity, they can be used as surrogate antibodies.

Drug maker Alvotech announced this week that it has raised $300 million, through a private bond offering, that it will used to continue its growth, refinance debt, and further develop its biosimilar pipeline.

A representative from Pfizer confirmed to The Center for Biosimilars® that the company has terminated 5 of its preclinical biosimilar programs after the results of the company’s annual investment review.

Swedish biotechnology company Xbrane Biopharma recently announced that it has submitted its first national Clinical Trial Application to the FDA seeking permission to begin the Xplore trial.

Presenters during the 37th annual J.P. Morgan Healthcare Conference, held January 7-10 in San Francisco, California provided an overview about what potential investors can expect to see from their companies’ pharmaceutical pipelines over the next fiscal year.

During the first day of the 37th Annual J.P. Morgan Healthcare Conference, held January 7-10 in San Francisco, California, 2 major biosimilar developers gave a look at their strategies for 2019 and beyond.