Exhibit 1

 

JOINT FILING AGREEMENT

 

The undersigned hereby agree that the Statement on Schedule 13D, dated August 7, 2026, with respect to the common stock of Braveheart Bio, Inc. is filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. Each of the undersigned agrees to be responsible for the timely filing of the Statement, and for the completeness and accuracy of the information concerning itself contained therein. This Joint Filing Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

 

IN WITNESS WHEREOF, the undersigned have executed this Joint Filing Agreement as of the 18th day of August 2026.

 

  ORBIMED ADVISORS LLC  
       
  By: /s/ Carl L. Gordon              
    Name: Carl L. Gordon  
    Title: Member  
       
  ORBIMED CAPITAL GP IX LLC  
       
  By: ORBIMED ADVISORS LLC, its managing member
       
  By: /s/ Carl L. Gordon              
    Name: Carl L. Gordon  
    Title: Member of OrbiMed Advisors LLC  
       
  ORBIMED GENESIS GP LLC  
       
  By: ORBIMED ADVISORS LLC, its managing member
       
  By: /s/ Carl L. Gordon                          
    Name: Carl L. Gordon  
    Title: Member of OrbiMed Advisors LLC