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1.
J Pharm Sci ; 112(8): 2046-2056, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36462708

RESUMO

Continuous direct compression (CDC) of solid oral dosage forms requires materials exhibiting acceptable flow and compression properties. The desired active pharmaceutical ingredient (API) powder properties can be difficult to achieve through conventional particle engineering approaches, such as particle size and habit modification during crystallization. Co-processing of API with excipients can significantly improve the powder properties to overcome these difficulties. In this manuscript, performance of a co-processed API was evaluated in a continuous feeding and blending process using GEA ConsiGma® Continuous Dosing and Blending Unit (CDB1). The co-processed theophylline was generated via a methodology in which polymer was precipitated and coated the crystalline theophylline particles resulting in nearly spherical agglomerates. A range of drug loads (1-25% w/w), flow rates (15-40 kg/h) and blender speeds (220-400 rpm) were studied. The results demonstrated that the co-processed API can be successfully fed through a loss-in-weight feeder and blended with other excipients in a high shear blender to generate tablets with acceptable content uniformity at 1-25% w/w drug loads. This study supports that using co-processed API with enhanced powder properties is a promising approach to enable continuous manufacturing for APIs with challenging properties.


Assuntos
Química Farmacêutica , Farmácia , Química Farmacêutica/métodos , Excipientes/química , Pós/química , Teofilina , Comprimidos/química , Tamanho da Partícula , Composição de Medicamentos/métodos , Tecnologia Farmacêutica/métodos
2.
Drug Discov Today ; 26(5): 1200-1211, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33561512

RESUMO

Cardiovascular disease (CVD) and its sequelae have long been the leading causes of death and disability in the developed world. Although mortality associated with CVD has been decreasing, due in large part to novel therapeutic options, the rate of decrease has flattened. Thus, there is a great need to investigate alternate therapeutic strategies that can increase efficacy while decreasing adverse effects. Nanomaterials have been widely investigated and have emerged as promising tools for both therapeutic and diagnostic purposes in oncology; however, the potential of nanomaterials has not been extensively explored for cardiovascular medicine. In this review, we focus on recent developments in the field of nanomedicines targeted for CVDs, with a special emphasis on cell membrane-coated nanoparticles (NPs) and their applications.


Assuntos
Doenças Cardiovasculares/tratamento farmacológico , Sistemas de Liberação de Medicamentos , Nanopartículas , Animais , Membrana Celular/química , Humanos , Nanomedicina/métodos , Nanoestruturas
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