Drug Profile

ARN 75039

Alternative Names: ARN-75039

Latest Information Update: 28 Feb 2026

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At a glance

Originator Arisan Therapeutics
Developer Arisan Therapeutics; National Institute of Allergy and Infectious Diseases
Class Antivirals; Small molecules
Mechanism of Action Viral fusion protein inhibitors

Orphan Drug Status

Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.

No
New Molecular Entity Yes

Highest Development Phases

Phase II Lassa fever

Most Recent Events

28 Feb 2026 No recent reports of development identified for phase-I development in Lassa-fever(In volunteers) in USA (PO, Capsule)
20 Feb 2026 Phase-II clinical trials in Lassa fever in Nigeria (PO) (NCT07419373)
21 Apr 2025 Arisan Therapeutics completes phase-I clinical trials in Lassa fever (In volunteers) in USA (PO, Tablets, Capsule) (NCT06911242)

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