Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A Phase 3, Randomized, Double-blind, Placebo-controlled, Two-period, Three-sequence, Partial Crossover Study to Evaluate the Efficacy and Safety of Subcutaneous Administration of 2000 IU of C1 Esterase Inhibitor [Human] Liquid for Injection for the Prevention of Angioedema Attacks in Adolescents and Adults With Hereditary Angioedema
Brief Summary: The purpose of this study is to assess the efficacy and safety of subcutaneous administration of a liquid formulation of C1 esterase inhibitor for the prevention of angioedema attacks in adolescent and adult subjects with hereditary angioedema.


Options:
A: Arm Label: Experimental/Placebo; Type: EXPERIMENTAL; Interventions: Drug: C1 esterase inhibitor [human] liquid, Drug: Placebo | Arm Label: Placebo/Experimental; Type: EXPERIMENTAL; Interventions: Drug: C1 esterase inhibitor [human] liquid, Drug: Placebo | Arm Label: Experimental/ Experimental; Type: EXPERIMENTAL; Interventions: Drug: C1 esterase inhibitor [human] liquid | Intervention Type: DRUG; Name: C1 esterase inhibitor [human] liquid; Assigned to Arm(s): Experimental/ Experimental, Experimental/Placebo, Placebo/Experimental | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Experimental/Placebo, Placebo/Experimental
B: Arm Label: DX-2930, Cohort 1; Type: EXPERIMENTAL; Interventions: Drug: DX-2930 | Arm Label: DX-2930, Cohort 2; Type: EXPERIMENTAL; Interventions: Drug: DX-2930 | Arm Label: DX-2930, Cohort 3; Type: EXPERIMENTAL; Interventions: Drug: DX-2930 | Arm Label: DX-2930, Cohort 4; Type: EXPERIMENTAL; Interventions: Drug: DX-2930 | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Intervention Type: DRUG; Name: DX-2930; Assigned to Arm(s): DX-2930, Cohort 1, DX-2930, Cohort 2, DX-2930, Cohort 3, DX-2930, Cohort 4 | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo
C: Arm Label: BCX7353 110 mg once daily; Type: EXPERIMENTAL; Interventions: Drug: BCX7353 capsules | Arm Label: BCX7353 150 mg once daily; Type: EXPERIMENTAL; Interventions: Drug: BCX7353 capsules | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo oral capsule | Intervention Type: DRUG; Name: BCX7353 capsules; Assigned to Arm(s): BCX7353 110 mg once daily, BCX7353 150 mg once daily | Intervention Type: DRUG; Name: Placebo oral capsule; Assigned to Arm(s): Placebo
D: Arm Label: DX-2930 300 mg every 2 weeks; Type: EXPERIMENTAL; Interventions: Drug: DX-2930 - 300mg/2wk | Arm Label: DX-2930 300 mg every 4 weeks; Type: EXPERIMENTAL; Interventions: Drug: DX-2930 - 300mg/4wk | Arm Label: DX-2930 150 mg every 4 weeks; Type: EXPERIMENTAL; Interventions: Drug: DX-2930 - 150mg/4wk | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Intervention Type: DRUG; Name: DX-2930 - 300mg/2wk; Assigned to Arm(s): DX-2930 300 mg every 2 weeks | Intervention Type: DRUG; Name: DX-2930 - 300mg/4wk; Assigned to Arm(s): DX-2930 300 mg every 4 weeks | Intervention Type: DRUG; Name: DX-2930 - 150mg/4wk; Assigned to Arm(s): DX-2930 150 mg every 4 weeks | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo

Answer: A