S
Sironax
Clinical-stage biotechnology company that develops novel products and treatments for age-related degenerative diseases
About Sironax
Sironax is a clinical-stage biotechnology firm established in 2017 by co-founders Dr. Xiaodong Wang and Dr. Zhiyuan Zhang. The company's scientific foundation is built upon Dr. Wang's pioneering research over two decades into the mechanisms of programmed cell death and its connection to aging. This deep scientific expertise underpins Sironax's strategy to develop therapies that target the root causes of age-related degenerative diseases.
Read full description
The company's business model is centered on the discovery, in-house development, and clinical progression of novel drug candidates. Sironax has secured substantial financial backing, raising over $300 million to date, including a significant $200 million Series B financing round in August 2022. This funding is being used to advance its clinical pipeline and expand research and development operations. The company's strategy also includes strategic partnerships, such as a July 2025 agreement with Novartis, granting an exclusive option to acquire Sironax's Brain Delivery Module (BDM) platform, a technology designed to help therapeutics cross the blood-brain-barrier.
Sironax's therapeutic pipeline focuses on key pathways of cellular aging, including regulated cell death, neuroinflammation, and metabolic changes. Its portfolio consists of multiple programs targeting conditions like neurodegenerative diseases, muscular weakness, and metabolic disorders. Several drug candidates, all designed and synthesized in-house, have advanced to clinical trials. Notable assets include RIPK1 (receptor-interacting serine/threonine-protein kinase 1) inhibitors, such as SIR0365, which has completed Phase 1b studies, and SIR2446, which has entered Phase 1a trials. Another candidate, SIR2501, recently completed a Phase 1 study in Australia and China for potential application in neurodegenerative diseases like ALS. Operating globally with a growing team of over 140 employees in China, the U.S., and Australia, Sironax aims to shift the treatment paradigm for a patient population currently served mostly by palliative care.
At a glance
- Status
- Operational
- Founded
- 2017
- Headquarters
- Changping District, China
- Employees
- 60
- Open positions
- None listed
- Dealroom signal
- 56.4/100
- Industry
- Health
- Sub-industry
- BioTechnology
- Sector
- Biotech & Life Sciences, Biotechnology, Spinout, Rumoured $1B, Biotech and Pharma, DT and LS, science-based
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES BOther financing | Aug 2022 | $200M | $800M | F-Prime · K2 Venture Capital · CBC Group · LSV Capital | ↗ |
| SERIES AOther financing | Sep 2019 | $101M | $404M | F-Prime | — |
Growth signals
Latest recorded traffic for Sironax is 4.9K monthly website visits, up 206.3% over the last three months. Sironax's team grew 17.6% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A14 investors entered at this stage
F-Prime
YunFeng Capital
Gaorong Capital
K2 Venture Capital
CBC Group- LCLSV Capital
- FFFuture Innovation Fund
LongRiver Investments
Temasek
Invus
ARCH Venture Partners
MSA Capital
Eight Roads Ventures China
Superstring Capital
Other known investors1 additional known investor
National Institute of Biological Sciences (NIBS), Beijing.
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Sironax on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Sironax’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.







