F Star Therapeutics, Inc.

Botanic House, 100 Hills Road, Cambridge, CB2 1PH, United Kingdom , London, Greater London
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Name: F-star Therapeutics (A subsidiary of invoX Pharma)

Business Headquarter: United Kingdom, Cambridgeshire, Cambridge

Business Category: Biotechnology / Biopharmaceutical Research

Blue pages F-star Therapeutics is a clinical-stage biopharmaceutical company pioneering the development of next-generation immunotherapies. We are dedicated to transforming the lives of patients with cancer through our proprietary tetravalent (2+2) bispecific antibody (mAb²™) platform. This innovative technology allows for the simultaneous targeting of two different immune checkpoint receptors, designed to overcome tumor immune evasion and provide more durable clinical benefits than traditional monoclonal antibodies.

Our mission is to create a future free from the burden of cancer and other serious diseases by engineering "plug-and-play" antibody building blocks that offer monoclonal-like manufacturability with superior therapeutic potential. By 2026, our clinical pipeline includes multiple advanced candidates—such as FS118 (targeting LAG-3 and PD-L1) and FS222 (targeting CD137 and PD-L1)—which are undergoing rigorous trials to address unmet needs in oncology and immunology. As part of the invoX Pharma family, we combine our deep expertise in antibody engineering with global resources to accelerate the delivery of life-saving therapies to patients worldwide.

Business Helpdesk Number: +44 (0)1223 497 400

Founder Name: Dr. Florian Rüker (Initial Scientific Founder) | Current CEO: Ben Toogood (CEO of invoX Pharma)

Founded Date: 2006-01-01 (Incorporated in the UK in 2018 as F-star Therapeutics Ltd)

Phone Number: +44 (0)1223 497 400

Email Address: info@f-star.com / media@invoxpharma.com

Website URL: https://www.f-star.com

Physical Address: Botanic House, 100 Hills Road, Cambridge, CB2 1PH, United Kingdom

Landmark: Near the Cambridge University Botanic Garden and Cambridge Railway Station

Service or Products: mAb²™ Bispecific Antibody Platform, Immuno-oncology Therapeutics (FS118, FS222, FS120), Clinical Trial Partnerships, Antibody Engineering Licensing.

Amenities: State-of-the-art Wet Labs, Bioinformatics Suite, Collaborative Research Hub, Global Clinical Trial Access, Employee Wellness Programs.

Accepted Payment Methods: B2B Institutional Funding, Milestone Payments, Corporate Grants, Equity Investment (via Parent Co Sino Biopharm).

Languages Supported: English, Mandarin.

Specialization: Bispecific Antibody Engineering, Immuno-oncology, Tetravalent mAb²™ Technology, PD-L1/LAG-3/CD137 Pathway Modulation, Translational Medicine.

Certifications: ISO 9001 (Quality Management), GCP (Good Clinical Practice), GLP (Good Laboratory Practice), National Security and Investment Act (NSIA) Cleared.

Social Media Links:

LinkedIn: https://www.linkedin.com/company/f-star

Business Registration Number: 11532458

Brand Association Name: invoX Pharma, Sino Biopharmaceutical Ltd, Spring Bank Pharmaceuticals (Legacy).

Working Hours: Monday–Friday: 09:00 AM – 06:00 PM

Additional Information:

Year Founded: 2006

Brands: mAb²™, F-star.

Number of Employees: 100+ (UK and US operations)

Associations: BioIndustry Association (BIA), One Nucleus, Cambridge Network.

FAQs

What is the "blue pages" status for F-star Therapeutics?
This is the verified 2026 listing, reflecting the company’s new Botanic House headquarters and its established role as an invoX Pharma subsidiary.

What is a "bispecific" antibody?
Unlike standard antibodies that bind to one target, F-star’s bispecific antibodies can bind to two different immune checkpoints at once, essentially "double-locking" onto the cancer defense mechanism.

Are F-star's drugs available to the public yet?
Most are currently in Phase 1 or Phase 2 clinical trials. Patients can find information about enrolling in these studies through the "Clinical Trials" portal on our website.

How is F-star related to Sino Biopharmaceutical?
F-star was acquired by invoX Pharma, which is the international R&D arm of Sino Biopharm, a Fortune 500 equivalent in the pharmaceutical world.

Does F-star still have a presence in the United States?
Yes, the company maintains a secondary hub in Cambridge, Massachusetts, to coordinate US-based clinical operations and regulatory filings.

2026 Corporate Status & Strategic Update: As of March 2026, F-star Therapeutics operates as a key wholly-owned subsidiary of invoX Pharma Limited, which is the international expansion platform for Sino Biopharmaceutical Limited. Following the completion of its $161 million acquisition in 2023, F-star has integrated its proprietary tetravalent (2+2) bispecific antibody platform into invoX’s global R&D ecosystem. In December 2025, the company moved its UK headquarters to Botanic House in central Cambridge to support its growing team of clinical and research specialists.

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Business summaryblue pages F-star Therapeutics is a clinical-stage biotech using its mAb² platform to develop tetravalent bispecific antibodies for cancer treatment.
Year of Establishment2006
AssociationsBioIndustry Association (BIA), One Nucleus, Cambridge Network.

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