Multivalent medicines that deliver transformative outcomes
OUR FOCUS
We build multivalent biologics that achieve unique, unprecedented antibody mechanisms. therapeutic pleiotropism — where a drug impacts multiple cell types, often with contradictory effects.
At Arpelos, we believe that understanding the nuanced behavior of drugs at the cellular level is essential to solving this challenge. Therapeutic pleiotropism can cause a treatment designed to target one cell type to unintentionally activate, suppress, or alter others—leading to off-target effects, reduced efficacy, or unpredictable patient outcomes. Traditional screening methods often overlook these hidden dynamics, especially in complex tissue environments.
A systems-level approach to decoding cellular response
Our platform brings blood-derived bioscience to the forefront of drug development. By analyzing how compounds interact with diverse blood cell populations in parallel, we illuminate their full spectrum of cellular effects. This systems-level view helps researchers de-risk candidate molecules earlier in the pipeline and design therapies with greater specificity, safety, and translational potential. We combine high-resolution single-cell data with proprietary profiling tools to map functional responses across the immune landscape, hematopoietic lineages, and other circulating cell types. This enables a new layer of insight into drug behavior—revealing unintended consequences, uncovering novel mechanisms of action, and supporting a more rational approach to therapy design. With Arpelos, developers gain the power to navigate pleiotropy, not just avoid it.
B Cell
Bystander
T cell
Inflammatory
CD8+ T cell
Our Pipeline
Modern drug discovery is limited by models that oversimplify biology. Arpelos was founded to change that. Our platform uses fresh human blood and high-dimensional single-cell profiling to capture how compounds behave across real, diverse cell populations—before a molecule ever enters the clinic.
This funding enables us to advance our core platform: boosting throughput, broadening functional readouts, and enhancing the resolution of our cellular insights. With richer data, improved models, and smarter tools, we aim to deliver unprecedented clarity into drug behavior within human biology.
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