Patients and caregivers

Welcome to the THERAKOS
extracorporeal photopheresis website

We are the provider of the THERAKOSTM CELLEXTM Photopheresis System: an integrated system used for the delivery of extracorporeal photopheresis (ECP).

Our THERAKOS™ CELLEX™ Photopheresis System delivers extracorporeal photopheresis (also known as ECP*), a treatment for patients with a range of immune-mediated diseases
We have been developing this treatment and advancing the technology of our THERAKOS™ CELLEX™ Photopheresis System for over 30 years
We are committed to optimising the delivery of ECP* for patients and the healthcare
professionals that administer it

*ECP stands for extracorporeal photopheresis (‘extracorporeal’ means outside the body).

What is extracorporeal photopheresis (ECP)?

How does extracorporeal photopheresis (ECP) work?

The exact mechanism of action is not known and continues to be investigated to be better understood.

What do I need to know before starting treatment?

Patient stories


THERAKOSTM Photopheresis Systems are CE marked for the administration of photopheresis.

The information provided in this website should not be used as a substitute for medical advice from a healthcare professional.