Bambusa Therapeutics Secures $90M Series A to Advance Novel Bispecific Antibody Pipeline
• Bambusa Therapeutics has raised $90 million in Series A financing led by RA Capital Management to advance its pipeline of bispecific antibodies for immunological and inflammatory disorders.
• The company's lead candidate BBT001 for dermatologic conditions will enter Phase I trials by March 2025, followed by BBT002 for respiratory, dermatology, and gastroenterology indications by mid-2025.
• Founded in May 2024, Bambusa is developing four bispecific antibody candidates with extended half-life properties, targeting multiple inflammatory diseases with potential best-in-disease profiles.
The US-based biotechnology startup Bambusa Therapeutics has secured $90 million in Series A financing to accelerate the clinical development of its innovative bispecific antibody pipeline targeting immunological and inflammatory disorders. The funding round was spearheaded by RA Capital Management, with participation from prominent investors including Janus Henderson Investors, Redmile Group, Invus, and ADAR1 Capital Management.
Since its inception in May 2024, Bambusa has demonstrated remarkable momentum in its development programs. The company previously raised $15 million in seed financing co-led by BVF Partners and KKR's Dawn Biopharma in September 2024. Under the leadership of founder and CEO Shanshan Xu, former vice president for external innovations at BioNTech, the company has built a diverse pipeline of four bispecific antibody candidates.
BBT001, the company's lead candidate for dermatologic indications, is poised to enter clinical development with a Phase I trial (NCT06808477) scheduled to commence by the end of March 2025. The study aims to evaluate the drug's safety and efficacy in 98 participants, including healthy volunteers and patients with atopic dermatitis.
The company's second program, BBT002, has successfully completed preclinical studies and is targeted to begin human trials by mid-2025. Described as a "platform in a molecule," BBT002 shows versatility across respiratory, dermatology, and gastroenterology indications, highlighting the potential broad applicability of Bambusa's technology platform.
Beyond its lead programs, Bambusa is advancing two additional candidates through earlier development stages. BBT003 is being developed specifically for inflammatory bowel disease, while BBT004 targets rheumatological conditions. Both programs are positioned as potential best-in-disease therapeutics, though specific development timelines have not been disclosed.
"The next wave of therapeutics for patients with immunology and inflammation disorders will be both more efficacious and convenient than currently available options," stated Derek DiRocco, partner at RA Capital. "The Bambusa Therapeutics pipeline fits this profile, as their half-life extended bispecific antibodies were designed to target complementary disease-driving signalling pathways, affording the potential for a best-in-disease profile for patients."
The substantial Series A funding positions Bambusa to advance its innovative pipeline through critical clinical development phases, potentially delivering new therapeutic options for patients with various inflammatory conditions.

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Bambusa Therapeutics
Posted 2/27/2025
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[1]
I&I Startup Bambusa Nabs $90M for Bispecific Antibodies
biospace.com · Feb 14, 2025
[2]
Bispecific antibody startup Bambusa raises $90m to fund clinical trials
pharmaceutical-technology.com · Feb 17, 2025