Stock-Based Compensation (Tables)

3 Months Ended

Dec. 31, 2025

Stock-Based Compensation

Schedule of stock-based compensation expense

	Three months ended December 31,
	2025		2024
Research and development	$	97,818	$	110,029
General and administrative		783,332		3,562,391
Total	$	881,150	$	3,672,420

Employee Stock Option

Stock-Based Compensation

Schedule of stock option activity

				Weighted
				Average
		Weighted		Remaining
	Number of	Average		Contractual	Aggregate
	Shares	Exercise Price		Term (Years)	Intrinsic Value
Balance at September 30, 2025	3,611,362	$	11.36	7.9	$	—
Granted	3,103,887		1.15
Expired	(74,368)		22.70
Balance at December 31, 2025	6,640,881	$	6.46	8.7	$	1,486,439
Vested and exercisable at December 31, 2025	2,721,153	$	13.69	7.4	$	61,687

Schedule of option assumptions

	Three months ended December 31,
	2025		2024
Risk-free interest rate	3.7	%	3.5	%
Expected term (years)	5.5		5.5
Expected volatility	132.0	%	134.0	%
Expected dividend yield	—		—

Performance-based stock options

Stock-Based Compensation

Schedule of stock option activity

				Weighted
				Average
		Weighted		Remaining
	Number of	Average		Contractual	Aggregate
	Shares	Exercise Price		Term (Years)	Intrinsic Value
Balance at September 30, 2025	125,500	$	12.92	7.6	$	—
Forfeited	(90,500)		6.78
Expired	(5,000)		28.80
Balance at December 31, 2025	30,000	$	28.80	6.0	$	—
Vested and exercisable at December 31, 2025	30,000	$	28.80	6.0	$	—