King’s Health Partners Long COVID biomarker study

Study code

Lead researcher
Dr Timothy Nicholson

Study type
Participant re-contact

Institution or company
Kings College London

Researcher type

Speciality area
Infection, COVID


This study will attempt to find a cause for Long COVID, which is a disorder when symptoms after COVID persist for more than 3 months.

Little is known about the cause of Long COVID and there is currently no blood test for this condition. There are many theories as to why symptoms persist for so long in some patients including disruption of the blood vessels and immune system, which can be looked at using ‘biomarkers’ (signals detectable in the blood).

This study will collect blood and test for abnormalities which can help understand the causes of Long COVID and how best to treat it.