Balance Sheet Details

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

4. Balance Sheet Details

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets as of September 30, 2023 and December 31, 2022 consisted of the following:


	September 30,		December 31,
	2023		2022
	(in thousands)
Prepaid expenses	$	15,335	$	5,312
Purchased equipment deposits		7,792		—
Interest receivable		3,438		2,848
Grant receivable		1,886		1,029
Other current assets		1,299		1,990
Total	$	29,750	$	11,179

Property and Equipment, Net

Property and equipment, net as of September 30, 2023 and December 31, 2022 consisted of the following:


	September 30,			December 31,
	2023			2022
	(in thousands)
Furniture and equipment	$	1,608		$	1,608
Computers and computer software		416			416
Lab equipment		16,438			13,100
Leasehold improvements		1,353			1,353
Total property and equipment		19,815			16,477
Less: accumulated depreciation and amortization		(8,384	)		(6,117	)
Property and equipment, net	$	11,431		$	10,360

Depreciation and amortization expense was $0.8 million and $0.7 million for the three months ended September 30, 2023 and 2022, respectively, and $2.3 million and $1.9 million for the nine months ended September 30, 2023 and 2022, respectively.

Accrued Expenses

Accrued expenses as of September 30, 2023 and December 31, 2022 consisted of the following:


	September 30,		December 31,
	2023		2022
	(in thousands)
Clinical studies	$	476	$	1,518
Other research and development		12,052		12,446
Other accrued expenses		2,493		1,411
Total	$	15,021	$	15,375