Accrued and Other Current Liabilities

3 Months Ended

Mar. 31, 2022

Accrued Liabilities Current [Abstract]

Accrued and Other Current Liabilities

(5) Accrued and Other Current Liabilities

Accrued liabilities consisted of the following as of March 31, 2022 and December 31, 2021 (in thousands):

	March 31, 2022		December 31, 2021
Payroll	$	727	$	575
Professional fees		707		531
Research services		1,212		656
Other		7		2
Total	$	2,653	$	1,764

Other current liabilities of $5.2 million and $5.3 million as of March 31, 2022 and December 31, 2021, respectively, represent the repayable advance received under the Company’s research and development agreement with the Belgium Walloon Region Government. During 2020, the Company discontinued research efforts related to this program and is evaluating its options in accordance with the terms of the agreement.