Biosimilars/Research
Regulating the safety of biosimilars
Clinical safety is critically important during the development of a biosimilar. An overview of the main aspects of safety assessment of biosimilars has been prepared to assist all those interested in this area of growing importance [1].
Biocomparable has comparable safety and efficacy to originator erythropoietin in haemodialysis patients
A study of the treatment of patients with chronic kidney disease undergoing haemodialysis with ‘biocomparable’ and originator erythropoietin in Mexico has shown comparable efficacy and safety in terms of changes in haemoglobin levels [1].
Phase I study shows darbepoetin alfa biosimilar to be well tolerated
Chong Kun Dang Pharmaceutical (CKD Pharma) announced on 18 November 2014 the successful completion of its phase I pharmacokinetics study for its biosimilar darbepoetin alfa product.
Extrapolation of indications in biosimilars: epoetin
Despite a stringent approval process, acceptance of biosimilars in the medical community continues to be low, and especially in extrapolated* indications. Members of the European Medicines Agency's (EMA) Biosimilar Medicinal Products Working Party (BMWP) address these concerns using extrapolation of indications in biosimilar epoetin as an example [1].
Non-biological complex drug concept: experiences with iron sucrose and low molecular weight heparin
When the patent of a classical small molecule drug expires, generics may be marketed if their therapeutic equivalence to the originator drug has been established. The therapeutic equivalence of a drug includes both pharmaceutical equivalence and bioequivalence and do not require formal clinical efficacy and safety studies. The demonstration of therapeutic equivalence then allows for the interchangeability of the generic and originator drug. This approach has so far only been applied to products that can be fully characterized. For more complex molecules, which are difficult to characterize, such as proteins, the demonstration of bioequivalence requires an alternative approach.
US biosimilar uptake in the light of Obamacare
A literature review by researchers at Tufts University in the US concludes that market uptake of biosimilars in the US will depend on regulatory policies, including the smoothing out of issues concerning the country’s Food and Drug Administration (FDA) regulatory pathway [1, 2]. The review comes in the light of a new approval pathway for biosimilars established as part of the US Government’s Affordable Care Act, more widely known as Obamacare.
Use of biosimilars in rheumatology
In order to issue a position statement on the use of biosimilars in rheumatic diseases, the Sociedade Portuguesa de Reumatologia (Portuguese Society of Rheumatology) carried out two systematic literature reviews: one on clinical trials and one on international position papers for biosimilars [1].
Rituximab ‘similar biologic’ shows equivalent efficacy and safety
A retrospective analysis of cancer patients who received either originator or ‘similar biologic’ rituximab chemotherapy showed comparable efficacy and safety [1].
Patient access to rituximab in emerging markets
A Pfizer-sponsored study looking at access to the oncology treatment rituximab has revealed that use of this important drug would increase across all therapy types and markets if a biosimilar was available. A rituximab biosimilar would have the greatest impact in Brazil, Mexico and Russia.
Biosimilar trastuzumab candidates in phase III development
The introduction of Herceptin (trastuzumab) revolutionalized the treatment of breast cancer. Prior to its introduction there were few treatment options available to women with human epidermal growth factor receptor 2-positive (HER2+) breast cancer.
