Organization and Significant Accounting Policies (Tables)

3 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Schedule of Company's Current Pipeline

The following table presents the Company’s current pipeline:

Therapeutic Area	Name	Stage	Product Rights
Cardiometabolic	ARO-APOC3	Two Phase 2b and one Phase 3	Arrowhead
	ARO-ANG3	Two Phase 2b	Arrowhead
	Olpasiran	Phase 3	Amgen
Pulmonary	ARO-ENAC2	Pre-Clinical	Arrowhead
	ARO-RAGE	Phase 1/2	Arrowhead
	ARO-MUC5AC	Phase 1/2a	Arrowhead
	ARO-MMP7	Phase 1/2a	Arrowhead
Liver	ARO-HSD	Phase 1/2	GSK
	Fazirsiran	Phase 2	Takeda and Arrowhead
	JNJ-3989	Phase 2	Janssen
	HZN-457 (formerly ARO-XDH)	Phase 1	Horizon
	ARO-C3	Phase 1/2	Arrowhead
	JNJ-75220795	Phase 1	Janssen
Muscle	ARO-DUX4	Pre-Clinical	Arrowhead