Xios Therapeutics
Waltham, US · Founded 2015 · Delaware corporation
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Elpis Biopharmaceuticals is a clinical-stage biopharma company developing bispecific armored CAR-T cell therapies for solid tumors, addressing tumor heterogeneity and the immunosuppressive tumor microenvironment. Its pipeline includes EPC-003 for glioblastoma and EPC-002 for a range of solid tumors, built on proprietary armor, bispecific antibody, cell manufacturing, and mRNA display discovery platforms.
Founders & leadership
Xios Therapeutics was founded in 2015 by Yan Chen.

Board
Reported raises · per SEC filings
Form D private placements$7M disclosed across 2 rounds · 2015–2018
▶$1MraisedJul 2018 · 21 investors · OtherRule 506(b)
- Rick WagnerDirector
- Jeff BirdDirector
- Diala EzzeddineExecutive Officer, Director
- Offering amount
- $1.5M
- Amount sold
- $1M
- First sale
- Jun 2018
- Incorporated
- Corporation, Delaware, 2015
- Federal exemptions
- 06b
▶$6MraisedDec 2015 · 27 investors · OtherRule 506(b)
- Rick WagnerDirector
- Diala EzzeddineExecutive Officer, Director
- Jeff BirdDirector
- Offering amount
- $6M
- Amount sold
- $6M
- First sale
- Dec 2015
- Incorporated
- Corporation, Delaware, 2015
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
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Frequently asked questions
- What does Xios Therapeutics do?
- Elpis Biopharmaceuticals is a clinical-stage biopharma company developing bispecific armored CAR-T cell therapies for solid tumors, addressing tumor heterogeneity and the immunosuppressive tumor microenvironment. Its pipeline includes EPC-003 for glioblastoma and EPC-002 for a range of solid tumors, built on proprietary armor, bispecific antibody, cell manufacturing, and mRNA display discovery platforms.
- Who founded Xios Therapeutics?
- Xios Therapeutics was founded by Yan Chen in 2015.
- How much funding has Xios Therapeutics raised?
- Xios Therapeutics has disclosed $7M raised across 2 rounds.
- Where is Xios Therapeutics headquartered?
- Xios Therapeutics is headquartered in Waltham, US.




