The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2025
Filed:
Oct. 29, 2019
Consejo Superior DE Investigaciones Científicas, Madrid, ES;
Antonio Alcami Pertejo, Madrid, ES;
Sergio Martín Pontejo, Madrid, ES;
Carolina Sánchez Fernández, Madrid, ES;
CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS, Madrid, ES;
Abstract
The present invention provides improved Etanercept variants which comprise one (A105E), preferably two (A105E/L106F), amino acid substitutions regarding the Etanercept original amino acid sequence of SEQ ID NO: 3. These variants inhibit TNF activity but fail to neutralize human LTα (hLTα). Thus, they are proposed herein as a great alternative to be used in the clinic for the treatment of autoimmune or inflammatory diseases in which an exacerbated TNF activity is involved, since they prevent the side effects associated to the use of the original Etanercept molecule while retaining the TNF blocking activity.