Nintedanib as the First Treatment for Group of Progressive InterstitialLung Diseases: A Review of Patent Literature

Abstract: Nintedanib is a competitive inhibitor of non-receptor tyrosine kinase (nRTKs) and receptor tyrosine kinase (RTKs). Nintedanib is a substrate for the P-glycoprotein transporter, which returns ingested substances to the gastrointestinal lumen. At present, Nintedanib is being prescribed for individuals diagnosed with idiopathic pulmonary fibrosis (IPF). This assessment provides a concise overview of the latest patents pertaining to Nintedanib. The patents covered in this analysis are categorized into sections, including patents related to the active ingredient, polymorph, formulation, and treatment method. The purpose of this compilation is to offer researchers convenient access to all the relevant patents in a single resource. Information was collected from diverse web databases, including both paid and free sources. Paid databases, such as Orbit® and SciFinder® were utilized as examples. On the other hand, free databases, such as the European Patent Office's Espacenet®, WIPO Patentscope® the Indian patent database, and Google Patents, were also accessed for data gathering purposes. The orange-book listed patents for Nintedanib are set to expire in July 2029. These patents explore various excipients to address the solubility issue in the long-term storage of the formulation. However, despite these efforts, there is still a need for further research to enhance the properties of the Nintedanib formulation. Extensive research has been conducted on multiple methods for manufacturing Nintedanib and its formulations. This dynamic study has the potential to create opportunities for numerous generic companies to enter the United States market. This, in turn, will improve healthcare accessibility by lowering costs.