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                                                                Synonyms: IONIS-FXI-LRx
                                 
                                                         
                            Compound class: 
                                                            Nucleic acid
                                 
                                
                                    
                                        Comment: Fesomersen (IONIS-FXI-LRx) is a conjugated antisense oligonucleotide that selectively inhibits the expression of factor XI [1]. It is being explored as an anticoagulation therapy. 
                            
                            
                          
                                
                                    
                                
                          
                                   
                                   
                                  
                                    
                                    
                                    We provide the basic nucleotide sequence, without the modifications outlined in the INN record for this drug.  | 
                                    
| No information available. | 
Summary of Clinical Use ![]()  | 
                                                        
| Fesomersen is being investigated as an anticoagulation therapy. | 
| Clinical Trials | |||||
| Clinical Trial ID | Title | Type | Source | Comment | References | 
| NCT03582462 | A Study to Assess the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single and Multiple Doses of IONIS FXI-LRx in up to 84 Healthy Volunteers | Phase 1 Interventional | Ionis Pharmaceuticals, Inc. | ||