Drug Profile

SA 55

Alternative Names: BD55-5514; SA-55

Latest Information Update: 15 Oct 2025

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At a glance

Originator Sinovac Biotech
Class Antibodies; Antivirals
Mechanism of Action Immunostimulants

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 COVID 2019 infections

Most Recent Events

15 Oct 2025 No development reported - Phase-I for COVID-2019 infections (In the elderly, Prevention, In adults) in China (Inhalation)
11 Sep 2023 Phase-II clinical trials in COVID-2019 infections (In volunteers, In adults, In the elderly) in China (IM), prior to September 2023
11 Sep 2023 Preliminary adverse events data from a phase I trial in COVID-2019 infections released by Sinovac Biotech

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