

Durable & safe resolution of complex autoimmune disease
Durable & safe resolution of complex autoimmune disease

Discover our industry-leading platform and technology



Our vision
In Complex Autoimmunity - patients cycle through multiple ineffective treatments, accruing damage to their tissues and organs
Imagine a Different Future - when patients could receive a single infusion to durably control their autoimmunity, with minimal adverse events
Our Approach - At Quell, we engineer natural T-regulatory cells designed to do just that – durable resolution of complex autoimmune diseases - simple, safe and transformational outcomes from a single outpatient dose
The Need
Autoimmunity patients deserve better



For people with severe, refractory autoimmune disease, existing treatments often fall short, leaving patients at risk of progressive tissue and organ damage, disability, and a diminished quality of life.
Most potentially transformative therapies in development for autoimmunity centre on therapies originally designed for oncology. While potentially efficacious, these therapies may also cause substantial toxicity. Autoimmunity patients desperately need transformational AND safe therapies.
Quell is developing potentially transformative therapies designed specifically for the needs in complex autoimmunity to safely restore immune balance.
Our Product
CHILL, not Kill



Autoimmune disease is driven by many immune cell types working together, not a single culprit.
Broad control. Quell's engineered nTregs are designed to restore broad control across multiple cell types involved in complex autoimmune inflammation, including autoreactive T and B cells and inflammatory cytokines, and to steer macrophages and fibroblasts towards tissue repair.
Built-in stability. Our Phenotype-Lock™ technology is designed to keep nTregs stable, even under inflammatory stress, without producing pro-inflammatory cytokines to avoid the toxicities linked to cell-depleting therapies, such as cytokine release syndrome (CRS) or local immune effector cell-associated toxicity syndrome (LICATS).
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