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Three months ago, the FDA said it was unconvinced by a bridging study designed to show equivalence between Provention’s product intended for commercial sale, made by contractmanufacturer AGC Biologics, and the drug that teplizumab’s original developer Eli Lilly used in clinical trials.
Now, the regulator has accepted the resubmission, kicking off another six-month review period as teplizumab has previously been awarded breakthrough status. Teplizumab is thought to work by binding to CD3, preventing the activation of T cells that attack and kill insulin-producing pancreatic beta cells in the autoimmune disease.
The US regulator has approved the anti-CD3 antibody as Tzield to delay the onset of stage 3 T1D in people eight years and older who currently have stage 2 disease, which according to the FDA “may provide patients with months to years without the burdens of disease.”
Like all drugs, biologics are regulated by the FDA. Expression Systems for Biologics The processes associated with the manufacturing of biopharmaceuticals are complex and require highly sterile and aseptic conditions. They are different from small molecules in terms of their size and complexity.
Further, as can be observed from the figure, the microbial CMO market features the presence of small, mid-sized, large and very large companies having the required expertise to offer contractmanufacturing services across the globe. Compliance with these regulations, requires substantial time and financial investment.
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