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§ Private Profile · Philadelphia, PA, USA
Biotechnology company developing in vivo gene therapy for CAR-T cell engineering to treat hematologic malignancies.
Interius BioTherapeutics, based in Philadelphia, PA, USA, develops next-generation gene delivery technology for in vivo cell-specific gene therapy, enabling direct engineering of CAR-T cells inside patients. This platform aims to treat hematologic malignancies and other diseases by bypassing ex vivo cell manipulation and toxic pre-conditioning chemotherapy. The company has raised approximately $170 million in total funding and employs nearly 50 individuals. Key investors include Cormorant Asset Management, Fairmount Funds, Pfizer Ventures, RA Capital Management, and Longwood Fund. Phil Johnson serves as President and CEO, with Lonnie Moulder as Board Chairman. Interius BioTherapeutics was founded in 2019 by Saar Gill, MD, PhD, and Bruce Peacock. Its business model centers on venture capital-funded biotechnology company developing preclinical and clinical-stage therapies for eventual commercialization.
Interius BioTherapeutics has raised $88.0M across 3 funding rounds.
Interius BioTherapeutics has raised $88.0M in total across 3 funding rounds.
Interius BioTherapeutics has raised $88.0M across 3 funding rounds. Most recently, it raised $76.0M Series A in May 2021.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| May 1, 2021 | $76M Series A | Cormorant Asset Management, Tomas Kiselak | Agent Capital, Bain Capital Life Sciences, Cofounders Capital, American Cancer Society, BrightEdge, Knollwood Investment Advisory, Logos Capital, Longwood Fund, Osage University Partners, Quin Capital, RA Capital Management, Lonnie Moulder JR, The Mark Foundation For Cancer Research, University OF Pennsylvania | Announced |
| Mar 1, 2020 | $6M Series U | — | Cofounders Capital | Announced |
| Mar 1, 2020 | $6M Seed | — | Agent Capital, Bain Capital Life Sciences, Cofounders Capital | Announced |
Interius BioTherapeutics has raised $88.0M in total across 3 funding rounds.
Interius BioTherapeutics's investors include Cormorant Asset Management, Tomas Kiselak, Agent Capital, Bain Capital Life Sciences, Cofounders Capital, American Cancer Society, BrightEdge, Knollwood Investment Advisory, Logos Capital, Longwood Fund, Osage University Partners, Quin Capital.
Interius BioTherapeutics is a clinical-stage biotechnology company developing next-generation delivery technology for cell and gene therapies, using proprietary lentiviral vectors to generate CAR T-cells directly in vivo.[1][2][5] The company targets hematologic malignancies and other diseases in oncology and autoimmunity, serving patients who face limitations from traditional ex vivo CAR T therapies, such as manufacturing bottlenecks, high costs, preconditioning chemotherapy, and restricted access for those with rapidly progressing conditions.[2][5] Its platform enables off-the-shelf, personalized treatments via a single intravenous infusion, solving key scalability and accessibility issues while showing growth momentum through clinical advancement and a major acquisition by Kite (a Gilead company).[2]
Founded in 2021, Interius BioTherapeutics emerged from inventions in the laboratory of Dr. Saar Gill at the University of Pennsylvania, focusing on in vivo gene delivery to expand cell and gene therapy potential.[1][4][6] The company built early traction as an early-stage biotech in Pennsylvania's life sciences hub, leveraging academic roots to develop its LENTIVECTOR platform for precision genetic medicine delivery.[4][5] A pivotal moment came with its acquisition by Kite Pharma, announced in a press release, which integrates Interius's technology with Kite's cell therapy expertise to accelerate development across multiple therapeutic areas.[2]
Interius rides the wave of in vivo gene therapy innovation, shifting from labor-intensive ex vivo cell therapies to scalable, patient-friendly alternatives amid rising demand for accessible cancer immunotherapies.[1][2] Timing aligns with advances in lentiviral vectors and CAR T expansion beyond blood cancers, fueled by market forces like manufacturing constraints and the need for faster treatments in oncology/autoimmunity.[2][5] By enabling broader patient access—especially for those ineligible for current options—Interius influences the ecosystem, complementing leaders like Kite/Gilead and potentially democratizing genetic medicines through its acquired platform.[2]
Post-acquisition by Kite, Interius is poised to accelerate clinical trials, expand its pipeline into new indications, and leverage Gilead's global infrastructure for manufacturing scale-up and regulatory progress.[2] Trends like programmable vectors and in vivo personalization will shape its path, potentially reducing treatment timelines and costs while influencing CAR T evolution toward off-the-shelf universality.[2][5] Its integration could amplify impact in the biotech landscape, turning early-stage promise into widespread therapeutic access, much like how it began by reimagining delivery from Penn's labs.[1][2]