In August 2017, the Company entered into a Support Services Agreement (the "2017 Support Services Agreement") with COI Pharmaceuticals, Inc. (“COI”) that outlines the terms of services provided by COI to the Company, as well as the fees charged for such services. COI is a shared service company that provides certain back-office and administrative and research and development support services, including facilities support, to the portfolio companies of Avalon Ventures, a stockholder of the Company. The Company pays COI quarterly prepayments for estimated costs to be incurred under the agreement in such quarter. Either party may terminate the 2017 Support Services Agreement by giving 30 days’ prior notice. The 2017 Support Services Agreement automatically renews in August of each year unless terminated by either party by giving 30 days’ prior notice.

On January 1, 2021, the Company entered into a second Support Services Agreement with COI (the "2021 Support Services Agreement"), which superseded the 2017 Support Services Agreement. The agreement modified the nature of services provided to the Company considering the transition of certain individuals as full-time Company employees effective January 1, 2021. The services will no longer include services normally associated with the roles of Chief Executive Officer, President and Senior Vice President. Other services associated with certain back-office and administrative and research and development services, including facilities support and other terms of the original agreement remain unchanged. The 2021 Support Services Agreement was renewed in January 2022 and will continue to renew for additional one-year renewal periods until terminated by the parties. Either party may terminate the 2021 Support Services Agreement with 30 days written notice.

Expense recognized by the Company under the 2017 Support Services Agreement and the 2021 Support Services Agreement for the years ended December 31, 2021 and 2020 was as follows (in thousands):


	Year Ended December 31,
	2021		2020

Research and development	$	1,609	$	1,640
General and administrative		325		861
Total	$	1,934	$	2,501

At December 31, 2021 and 2020, the Company had accounts payable and accrued expenses due to COI or its affiliates of $32,000 and $0.5 million, respectively. For the year ended December 31, 2021, the Company paid COI $14,000 related to the purchase of property and equipment.