On April 17, 2020, the Company received loan proceeds of approximately $1.8 million (the “PPP Loan”) pursuant to the Paycheck Protection Program (“the PPP”) under the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) administered by the U.S. Small Business Administration (the “SBA”).

The PPP Loan accrued interest at a rate of 1.00% per annum, and is subject to the standard terms and conditions applicable to loans administered by the SBA under the CARES Act. In February 2021, the Company applied for forgiveness of the PPP Loan, and in March 2021, the PPP Loan, including all accrued interest, was forgiven in full. A gain on forgiveness of Paycheck Protection Program loan of $1.8 million was recognized during the three months ended March 31, 2021.

In March 2019, the Company entered into a Loan and Security Agreement (the “LSA”) by and among Innovatus Life Sciences Lending Fund I, LP, a Delaware limited partnership (“Innovatus”), as collateral agent and the lenders listed on Schedule 1.1 thereto, including East West Bank. The LSA provided a first term loan of $17.5 million, a second term loan of $2.5 million and a third term loan of $5.0 million (collectively, the “Term Loans”) if the Company satisfied certain funding conditions. Interest on the Term Loans is due on the first of each month at a rate of 10.25% per annum in cash or a discounted rate of 7.25% in cash with 3.0% of the 10.25% per annum rate added to the principal of the loan and subject to accruing interest through the end of the interest only payment period, which ends March 1, 2022. At inception, the Company elected to pay interest in cash at a rate of 7.25% per annum and have 3.0% per annum of the interest added back to the outstanding principal. As of March 31, 2021, the effective interest rate, including debt issuance costs, for the Term Loans was 16.7%. Beginning in April 2022, the Company must make 24 equal monthly payments of principal and interest with a final maturity date in March 2024, which may be earlier due to an event of default if not cured within time specified.

The LSA provides for prepayment fees of 3.0% of the outstanding balance of the loan if the loan is repaid on or prior to March 14, 2020, 2.0% of the amount prepaid if the prepayment occurs after March 14, 2020 but prior to March 14, 2021, 1.0% of the amount prepaid after March 14, 2021 but prior to March 14, 2022 and 0% of the amount prepaid if the prepayment occurs thereafter. In addition, upon the final repayment of the total amounts borrowed, the Company is required to pay an end of term fee of $0.8 million. This end of term fee is being recognized as interest expense over the term of the LSA.

The LSA also provides for a revolving line of credit in an amount not to exceed $5.0 million (the “Revolver”), under which no borrowings were outstanding as of March 31, 2021 and December 31, 2020. The Company may repay and re-borrow amounts under the Revolver at any time prior to the March 1, 2024 maturity date without penalty or premium. The outstanding balance of amounts borrowed under the Revolver bears interest at a rate equal to 2.0% above the prime rate, per annum, as specified in the terms of the Revolver. The LSA allows the Company to borrow and repay amounts at any time prior to the maturity date in 2024.

The LSA is collateralized by substantially all of the Company’s assets, including its intellectual property. The LSA requires the Company to comply with various affirmative and negative covenants, including: (1) a liquidity covenant requiring the Company to maintain a minimum cash balance at all times in a collateral account and (2) a revenue covenant requiring the Company to meet certain minimum revenue targets measured at the end of each calendar quarter. The LSA also includes certain standard events of default, and a provision that Innovatus could declare an event of default upon the occurrence of any event that it interprets as having a material adverse impact to the Company’s business, operations, or condition, a material impairment on the Company’s ability to pay the secured obligations under the LSA, or upon a material adverse effect on the collateral under the agreement, thereby requiring the Company to repay the loans immediately, together with a prepayment fee and other applicable fees. As of March 31, 2021, the Company believes there have been no events or changes in conditions that could require immediate repayment of amounts due to Innovatus. As of March 31, 2021, the Company was in compliance with the covenants under the Innovatus LSA and the Revolver.