CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash	$ 13,386,332	$ 1,858,513
Account receivable, net of allowance of $5,470,897 and $257,463 as of June 30, 2021 and December 31, 2020, respectively		831,390
Prepaid expenses and other current assets	5,147,650	240,352
Total current assets	18,533,982	2,930,255
Other assets	12,730	10,914
Total assets	18,546,712	2,941,169
Current liabilities:
Accounts payable (includes $44,201 and $149,067 due to related parties)	6,268,319	3,153,310
Accrued and other current liabilities	1,506,337	1,728,483
Accrued clinical site costs	1,133,312	1,547,432
Earnout Cash liability	25,874,896
Warrant liabilities	22,845,113
Notes payable and accrued interest	173,694	248,861
Accrued settlement expense		39,486,139
Total current liabilities	57,801,671	46,164,225
Notes payable and accrued interest	512,472	547,827
Total liabilities	58,314,143	46,712,052
Stockholders' equity (deficit):
Preferred stock, $0.001 par value, 50,000,000 shares authorized; 0 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively
Common stock, $0.001 par value, 500,000,000 shares authorized; 48,603,585 and 42,973,462 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively	48,604	42,974
Additional paid-in capital	75,970,172	46,365,863
Accumulated deficit	(115,786,207)	(90,179,720)
Total stockholders' equity (deficit)	(39,767,431)	(43,770,883)
Total liabilities and stockholders' equity (deficit)	$ 18,546,712	$ 2,941,169