Drugs / Onradivir
last change Dec 2025 re-read 9 days ago

Onradivir

also known as ZSP1273 · [14C] ZSP1273

Small molecule

Developed for
influenza
Investigated by
Guangdong Raynovent Biotech Co., Ltd · Guangdong Zhongsheng Pharmaceutical Co., Ltd. · Ruijin Hospital

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Filed China (NMPA) 安睿威 influenza —

“昂拉地韦(ZSP1273)是全球首个获得积极Ⅲ期阳性结果的流感RNA聚合酶PB2抑制剂,目前已获得NDA受理。” raynovent.com ↗

“2023年12月,众生睿创继续抢抓时间,昂拉地韦片安睿威新药上市申请获受理” raynovent.com ↗

Trials 15

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 19 trials
Phase 1 NCT06248567 Jan → Apr 2024 impaired renal function disease Guangdong Raynovent Biotech Co., Ltd Completed No outcome recorded
Phase 1 NCT06164431 Nov → Dec 2023 — Guangdong Raynovent Biotech Co., Ltd Completed No outcome recorded
Phase 1 NCT06157450 Oct → Nov 2023 — Guangdong Raynovent Biotech Co., Ltd Completed No outcome recorded
Phase 1 NCT05954624 Jul → Nov 2023 — Guangdong Raynovent Biotech Co., Ltd Completed No outcome recorded
Phase 1 NCT05942365 Jun → Jul 2023 — Guangdong Raynovent Biotech Co., Ltd Completed No outcome recorded
Phase 1 NCT05856513 Jun → Jul 2023 — Guangdong Raynovent Biotech Co., Ltd Completed No outcome recorded
Phase 1 NCT05873426 Mar → Apr 2023 — Guangdong Raynovent Biotech Co., Ltd Completed No outcome recorded
Phase 1 NCT05108051 Nov 2020 → Mar 2021 — Guangdong Raynovent Biotech Co., Ltd Completed No outcome recorded
Phase 1 NCT03679143 Sep 2018 → Mar 2019 influenza Guangdong Zhongsheng Pharmaceutical Co., Ltd. Completed No outcome recorded
Phase 22 trials · 1 met primary
Phase 2 NCT06656026 Nov 2024 → Jun 2025 influenza Guangdong Raynovent Biotech Co., Ltd Completed No outcome recorded
Phase 2 NCT04024137 Dec 2019 → May 2020 influenza Guangdong Raynovent Biotech Co., Ltd Completed Met primary
Phase 34 trials · 1 met primary
Phase 3 NCT07229807 Nov → Dec 2025 overdue influenza Guangdong Raynovent Biotech Co., Ltd Active not recruiting No outcome recorded
Phase 3 NCT07229547 Nov 2025 → Dec 2026 expected influenza Ruijin Hospital Recruiting No outcome recorded
Phase 3 NCT07229820 Nov → Dec 2025 overdue influenza Guangdong Raynovent Biotech Co., Ltd Active not recruiting No outcome recorded
Phase 3 NCT04683406 Dec 2020 → Apr 2023 influenza Guangdong Raynovent Biotech Co., Ltd Completed Met primary

News releases announcing trial results or a regulatory action · 1

DateIssuerRelease
2023-11-21 Guangdong Raynovent Biotech Co., Ltd Results 重磅|全球首个流感RNA聚合酶PB2蛋白抑制剂昂拉地韦片Ⅲ期临床研究获得积极结果 raynovent.com ↗
昂拉地韦片治疗成人单纯性甲型流感的Ⅲ期临床研究近日完成顶线数据分析,结果表明,昂拉地韦较安慰剂可显著缩短中位七项流感症状缓解时间和中位发热缓解时间,较安慰剂或奥司他韦可更好更快地降低甲型流感病毒载量,显著缩短病毒转阴时间。

Evidence & citations 6 cited values

Every value below carries the sentence it was read from. 17 sources stand behind the page.

FieldValueCited text
Known as Onradivir “Onradivir is an influenza A virus RNA polymerase basic protein 2 inhibitor that is currently under development for the treatment of influenza A.” PMID 40757817 ↗ Aug 2025
3

“BACKGROUND: Onradivir (ZSP1273) is a potent inhibitor of the PB2 subunit of influenza A virus (IAV) polymerase.” PMID 40489986 ↗ Jun 2025

“Onradivir (ZSP1273) is a novel anti-influenza A virus inhibitor.” PMID 38330975 ↗ Feb 2024

NCT07229547 ↗

Known as [14C] ZSP1273 “Drug: [14C] ZSP1273” NCT05873426 ↗
Known as ZSP1273 “BACKGROUND: Onradivir (ZSP1273) is a potent inhibitor of the PB2 subunit of influenza A virus (IAV) polymerase.” PMID 40489986 ↗ Jun 2025
12

NCT07229820 ↗

NCT05873426 ↗

NCT06656026 ↗

NCT06157450 ↗

NCT07229807 ↗

NCT04024137 ↗

NCT05108051 ↗

NCT05954624 ↗

NCT06164431 ↗

NCT05942365 ↗

Show 2 more sources

Action Inhibit “ZSP1273 is a small-molecule anti-influenza drug targeting the RNA polymerase PB2 subunit of the influenza virus.” PMID 34654349 ↗ Nov 2021
Modality Small molecule “ZSP1273 is a small-molecule anti-influenza drug” PMID 34654349 ↗ Nov 2021
Route Oral “ZSP1273 tablets administered orally once daily under fasted condition” NCT03679143 ↗