Quarterly report pursuant to Section 13 or 15(d)

Statements of Cash Flows

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Statements of Cash Flows - USD ($)
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Cash flows from operating activities:    
Net loss $ (3,325,717) $ (2,119,397)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 12,870 7,709
Stock-based compensation expense 145,829 118,324
Stock issued in exchange for services 6,000  
Changes in operating assets and liabilities:    
Prepaid expenses and other current assets 18,585 333,317
Accounts payable and accrued expenses 931,757 293,397
Net cash used in operating activities (2,210,676) (1,366,650)
Cash flows from financing activities:    
Payments on short-term notes payable (64,376) (41,630)
Net proceeds from issuance of common stock and warrants 11,415,676  
Net cash provided by (used in) financing activities 11,351,300 (41,630)
Net increase (decrease) in cash and cash equivalents 9,140,624 (1,408,280)
Cash and cash equivalents at beginning of period 20,208,301 6,166,143
Cash and cash equivalents at end of period 29,348,925 4,757,863
Supplemental disclosure of cash flow information:    
Interest paid 1,297 4,495
Non-cash investing and financing activities:    
Borrowings under short term notes payable for prepaid expense 17,688 28,915
Par value of common stock issued 13  
Series C Preferred Stock [Member]    
Non-cash investing and financing activities:    
Stock dividend on Series C preferred stock $ 413,215 58,670
Series A Preferred Stock [Member]    
Non-cash investing and financing activities:    
Par value of common stock issued   259
Value of Series A preferred stock converted into common stock   $ 268,096