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Deerfield warrants - Schedule of Fair Value Inputs (Details) | Sep. 30, 2025 | Dec. 31, 2024 $ / shares
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Share price in $ | Deerfield Warrants |  |
Class of Warrant or Right [Line Items] |  |
Warrants, measurement input |  | 1.99
Risk-free interest rate | Deerfield Warrants |  |
Class of Warrant or Right [Line Items] |  |
Warrants, measurement input |  | 0.043
Expected volatility | Deerfield Warrants |  |
Class of Warrant or Right [Line Items] |  |
Warrants, measurement input |  | 0.830
Expected term (years) |  |
Class of Warrant or Right [Line Items] |  |
Warrants, term |  | 4 months 24 days
Expected term (years) | Deerfield Warrants |  |
Class of Warrant or Right [Line Items] |  |
Warrants, term | 10 months 21 days | 16 months 21 days
Dividend yield | Deerfield Warrants |  |
Class of Warrant or Right [Line Items] |  |
Warrants, measurement input |  | 0
Minimum | Exercise price in $ | Deerfield Warrants |  |
Class of Warrant or Right [Line Items] |  |
Warrants, measurement input |  | 24.70
Minimum | Black-Scholes value in $ | Deerfield Warrants |  |
Class of Warrant or Right [Line Items] |  |
Warrants, measurement input |  | 0
Maximum | Exercise price in $ | Deerfield Warrants |  |
Class of Warrant or Right [Line Items] |  |
Warrants, measurement input |  | 28.07
Maximum | Black-Scholes value in $ | Deerfield Warrants |  |
Class of Warrant or Right [Line Items] |  |
Warrants, measurement input |  | 0

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