T
Theolytics
Oncolytic adenovirus therapies for intravenous cancer treatment
About Theolytics
Theolytics is a clinical-stage biotechnology company that spun out of the University of Oxford in 2017. The company was co-founded by Charlotte Casebourne Stock and Margaret Duffy. Duffy, the Chief Scientific Officer, brought over a decade of international research experience in virology, including a PhD in Adenoviral Gene Therapy from the University of Glasgow. Casebourne, who served as CEO until mid-2024, had a background in translating life science technologies into commercial products and met the scientific founders in 2017, leading to the company's formation. Under her leadership, the company raised over $40 million and advanced to the clinical stage within seven years.
Read full description
The firm's core business is the development of oncolytic viral therapies, which are viruses engineered to selectively target and destroy cancer cells while sparing healthy tissue. Theolytics employs a phenotypic screening platform to discover and develop targeted candidates suitable for intravenous delivery. This approach involves using real tumor samples from patients to test and select the most effective viruses from a library of over 100 million variants, aiming for a more translationally relevant therapy compared to traditional lab models. This process is designed to create best-in-class products by using natural selection to identify viruses that thrive in patient-derived tumor cells, which are then enhanced through gene editing techniques like CRISPR.
Theolytics' business model is centered on advancing its pipeline of therapeutic candidates through clinical trials, with the ultimate goal of commercializing these novel cancer treatments. The company has secured significant funding from a syndicate of international life sciences investors, including M Ventures, Taiho Ventures, Epidarex Capital, Oxford Science Enterprises, and Sound Bioventures. Its lead product candidate, THEO-260, is a next-generation oncolytic adenovirus being developed for ovarian cancer. A key feature of THEO-260 is its ability to target not only cancer cells but also cancer-associated fibroblasts (CAFs), which are stromal cells that protect the tumor and contribute to treatment resistance. By destroying these fibroblasts, the therapy aims to break down the tumor's defenses. Theolytics has initiated a Phase I/IIa clinical trial for THEO-260 in patients with platinum-resistant ovarian cancer.
At a glance
- Status
- Operational
- Founded
- 2017
- Headquarters
- Oxford, United Kingdom
- Employees
- 31
- Open positions
- None listed
- Dealroom signal
- 89.6/100
- Industry
- Health
- Sub-industry
- BioTechnology
- Sector
- Biotech & Life Sciences, Biotechnology, Oncology, Spinout, Biotech and Pharma, Woman Founder, Horizon Europe, DT and LS, uk is8 life sciences, UKSU, UKSU2010
- 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 |
|---|---|---|---|---|---|
| GRANTOther financing | Sep 2024 | $2.6M | — | Undisclosed | ↗ |
| GRANTOther financing | Aug 2024 | $2.6M | — | UK Research and Innovation | — |
Growth signals
Latest recorded traffic for Theolytics is 2K monthly website visits, down 9.1% over the last three months. Theolytics's team declined 3.1% over the past year.
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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.
Seed2 investors entered at this stage
Oxford Science Enterprises
UK Research and Innovation
Series A6 investors entered at this stage
Epidarex Capital- TVTaiho Ventures
Taiho Pharma
University of Oxford
M Ventures
Sound Bioventures
Other known investors1 additional known investor
Oxford University Innovation
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Theolytics 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
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