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Statements of Operations - USD ($)
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
OPERATING EXPENSES      
Research and development $ 5,921,720 $ 5,913,720 $ 6,565,966
General and administrative 2,737,962 3,411,449 3,034,758
Total operating expenses 8,659,682 9,325,169 9,600,724
LOSS FROM OPERATIONS (8,659,682) (9,325,169) (9,600,724)
OTHER INCOME (EXPENSE):      
Interest income 55,497 100,429 60,955
Interest expense on convertible debentures 0 (185,274) (780,767)
Loss on extinguishment of debt 0 (1,348,247) (332,524)
Discount on convertible debentures 0 (359,214) (1,347,748)
Change in fair value of derivatives 179,745 2,554,020 1,696,318
Other income (expense), net 235,242 761,714 (703,766)
LOSS BEFORE INCOME TAX PROVISION (8,424,440) (8,563,455) (10,304,490)
INCOME TAX PROVISION 0 0 0
NET LOSS $ (8,424,440) $ (8,563,455) $ (10,304,490)
NET LOSS PER COMMON SHARE      
Net loss per common share- basic and diluted $ (0.12) $ (0.13) $ (0.17)
Weighted average common shares outstanding      
Weighted average common shares - basic and diluted 71,801,396 64,920,856 60,102,855