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Royalty Purchase and Sale Agreement | 3 Months Ended
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Mar. 31, 2024
Royalty Purchase and Sale Agreement |
Royalty Purchase and Sale Agreement | 10. Royalty Purchase and Sale Agreement During the fourth quarter of 2023, the Company, through its wholly-owned subsidiary Cara Royalty Sub, entered into the HCR Agreement with HCR, pursuant to which Cara Royalty Sub sold, or agreed to sell, to HCR certain of its rights to receive royalty payments, or the Royalties, due and payable to Cara Royalty Sub (as assignee of the Company) under the Maruishi Agreement and Vifor Agreement No. 2., collectively the Covered License Agreements, in exchange for up to $40,000. The Company has retained all of its rights, title and interest in, to and under the Covered License Agreements that relate to any non-intravenous formulation of difelikefalin. Under the terms of the HCR Agreement, Cara Royalty Sub received an upfront payment of $16,915 in November 2023, representing the $17,500 to which the Company was initially entitled, net of advisory fees and certain of HCR’s transaction-related expenses which the Company agreed to reimburse. In December 2023, Cara Royalty Sub received an additional payment of $19,770, representing the $20,000 milestone it achieved for Kapruvia (difelikefalin) pricing in Germany being approved above a certain threshold amount per dose, net of advisory fees. There were additional issuance costs of $211 related to the HCR Agreement resulting in aggregate net proceeds of $36,474. An additional $2,500 milestone payment is due to Cara Royalty Sub upon achievement of a 2024 sales milestone of KORSUVA in Japan. The HCR Agreement will automatically expire, and the payment of Royalties to HCR will cease, when HCR has received payments of Royalties equal to two times the aggregate amount of payments made by HCR under the HCR Agreement if achieved on or prior to December 31, 2029, or 2.8 times the aggregate amount of payments made by HCR under the HCR Agreement, if not achieved on or prior to December 31, 2029. After the HCR Agreement expires, all rights to receive the Royalties return to Cara Royalty Sub. Issuance costs pursuant to the HCR Agreement consisting primarily of advisory and legal fees totaled $1,025 including the amount of HCR’s transaction-related expenses that the Company reimbursed. The effective interest rate includes cash flow projections for future royalty and milestone payments, which are sensitive to certain assumptions, including market size, market penetration and sales price, that are forward looking and could be affected by future market conditions. The following table summarizes the activity of the HCR Agreement (in thousands):
​ | ​ | ​ | ​ | ​
Royalty purchase and sale agreement balance at December 31, 2023 |  | $ | 37,079 | ​
Payments | ​ |  | (685) | ​
Non-cash interest expense | ​ |  | 1,982 | ​
Balance at March 31, 2024 | ​ | $ | 38,376 | ​
​ | ​ | ​ | ​ | ​
Effective interest rate | ​ |  | 22.56 | %
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