The development of monoclonal antibodies has revolutionized the pharmaceutical industry by offering clinicians a wide range of therapeutic agents for the treatment of a variety of disorders. Unlike small molecule drugs, monoclonal antibodies are large and complex molecules that are generated using genetically engineered living cells. Due to the high complexity of this class of molecules, producing exact copies is impossible and with several originator biological agents losing their patents in recent years, several pharmaceutical manufacturers are pursuing the development of generic biopharmaceuticals or what is known as "biosimilars" as alternative biological therapeutics. Adalimumab represents one of the most prescribed monoclonal antibodies in clinical practice. With the originator adalimumab losing its patency in 2018, several manufacturers are pursuing the development of adalimumab biosimilars with varying degrees of quality and thus exposing different markets to biosimilars of inferior quality or what is known as intended copies. These molecules could pose a major harm to patients as a result of the unexpected immunogenicity or lack of efficacy that results from their lack of similarity to the originator biologic. The aim of this review is to provide technical guidance for the pharmaceutical personnel working in research and development of adalimumab biosimilars in addition to regulatory assessors' worldwide reviewing biosimilars dossiers within public health authorities. The review article will detail all the development stages needed for the development of adalimumab biosimilars within the comparability exercise that is required by manufacturers to provide regulatory agencies with strong evidence of adalimumab biosimilarity.
RezumatApariția anticorpilor monoclonali a revoluționat industria farmaceutică, oferind clinicienilor o gamă largă de agenți terapeutici pentru tratamentul multor afecțiuni. Spre deosebire de substanțele medicamentoase cu molecule mici, anticorpii monoclonali sunt molecule mari și complexe, generate de celule vii modificate genetic. Ținând cont de expirarea patentelor pentru agenți biologici inovatori, producătorii urmăresc dezvoltarea de biofarmaceutice generice sau ceea ce se cunoaște sub denumirea de "biosimilare". Adalimumab reprezintă unul dintre cei mai prescriși anticorpi monoclonali în clinică. O dată cu expirarea patentului adalimumabului în 2018, mai mulți producători urmăresc dezvoltarea de biosimilare. Acestea pot avea grade diferite de calitate și, astfel, expun pacienții la biosimilare de calitate inferioară. Aceste molecule ar putea aduce un prejudiciu major, ca urmare a imunogenității neașteptate sau a lipsei de eficacitate care rezultă din lipsa de similitudine a acestora cu substanța biologică originală. Scopul acestui review este de a orienta personalul farmaceutic care lucrează în cercetarea și dezvoltarea biosimilarelor cu adalimumab. Acest studiu detaliază toate etapele de dezvoltare necesare pentru biosimilarele cu adalimumab, cu scopul de a oferi agențiilor de r...