Koru Life Science
Rare diseases

Where repurposing matters most.

Each rare disease affects relatively few people. Together, they affect millions — and for most, there is still no approved treatment. Rare disease is the heart of Koru's work.

1 in 2,000

In the UK, a disease is rare when it affects fewer than one in 2,000 people.

7,000+

rare diseases have been identified.

1 in 17

people will be affected by a rare disease at some point in their lives.

Source: The UK Rare Diseases Framework, Department of Health and Social Care (2021).

The challenge

Why rare diseases are left behind

Small, scattered populations

Patients are few and spread across countries, which makes trials hard to run.

Limited knowledge

Natural history and biology are often poorly documented.

Long diagnostic journeys

Many patients wait years for a correct diagnosis, and treatment waits with them.

Hard economics

The cost of a new molecule rarely fits a small market, so many conditions go unaddressed.

The Koru Rare Disease Initiative

Our commitment to rare disease communities

The initiative brings together our repurposing science, our stratification approach and our partners to deliver credible treatment options for rare conditions faster.

Repurpose first

We look first at medicines with existing human data, to reach patients sooner.

Stratify by biology

Genetic and molecular markers guide which patients each programme is for.

Partner with patients

Patient organisations help shape our priorities, endpoints and study design.

Share what we learn

Where we can, we share findings with the research community, including what did not work.

Use every pathway

We plan early for orphan designation and expedited regulatory routes in the UK, EU and US.

Our approach

How we take on a rare disease

  1. 01

    Listen

    Understand the disease through patients, families, clinicians and the published evidence.

  2. 02

    Map the biology

    Identify the genes, pathways and markers that drive the condition and define patient subgroups.

  3. 03

    Match medicines

    Search existing compounds for those that act on that biology.

  4. 04

    Validate

    Test the strongest candidates in relevant models with academic partners.

  5. 05

    Plan the path to patients

    Design small, precise studies and a regulatory route built for rare disease.

Get involved

Patient organisations

Help us understand what matters most to your community.

Clinicians

Share insight on unmet need and potential study sites.

Researchers

Collaborate on models, biomarkers and validation.

Asset holders

Explore a new rare-disease indication for your compound.

Contact the initiative See our rare disease programmes