SpliceBio

SpliceBio

Barcelona, Spain· Est.
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Private Company

Total funding raised: $245M

Overview

SpliceBio is a private, clinical-stage biotech leveraging its novel Protein Splicing platform to overcome the payload limitations of standard AAV vectors, enabling the delivery of large genes for gene therapy. The company's lead asset, SB-007 for Stargardt disease, is in clinical development, supported by over $200 million in venture funding from top-tier investors. With a seasoned leadership team and a clear focus on inherited retinal diseases and beyond, SpliceBio aims to create a new class of genetic medicines for patients with limited treatment options.

OphthalmologyGenetic Diseases

Technology Platform

Proprietary Protein Splicing platform using engineered inteins to enable dual-vector AAV delivery of large genes, reconstituting full-length functional proteins in target cells.

Funding History

3
Total raised:$245M
PIPE$135M
Series A$60M
Seed$50M

Opportunities

The platform unlocks a vast array of genetic diseases caused by mutations in large genes, representing a significant untapped market.
Successful clinical validation in Stargardt disease would provide a powerful proof-of-concept, enabling rapid pipeline expansion and attracting major pharmaceutical partnerships.

Risk Factors

The novel dual-vector intein-splicing approach carries inherent clinical risk regarding safety, immunogenicity, and efficacy in humans.
The company faces competition from other groups developing alternative large-gene delivery technologies and is dependent on continued capital to fund expensive clinical trials.

Competitive Landscape

SpliceBio competes in the niche of overcoming AAV payload limits, facing approaches like dual-vector trans-splicing (e.g., GenSight Biologics), oversized capsids, and non-viral delivery from companies like Ring Therapeutics or Generation Bio. Its specific intein-mediated protein splicing approach is a differentiated technological strategy.