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Status unknownNCT04996108PAIReDUpdated Aug 17, 2021

Pericarditis: Auto-Inflammation in Recurrent Disease

An observational study in Idiopathic Recurrent Pericarditis, sponsored by King's College London. Status unknown at 2 sites in United Kingdom. Open to participants aged 16 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-08-17.

Sponsored by King's College London · Observational

The sponsor has not verified this record recently (last verified Jul 2021), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
119
Ages
16 Years and older
Sex
All
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Study summary

Pericarditis is swelling of the sac that surrounds the heart, the pericardium, causing chest pain. For most patients, the condition improves with simple anti-inflammatory medications like colchicine and ibuprofen. However, in 20-30% of patients the condition comes back. Diagnosis of recurrent pericarditis is frequently missed or delayed, and many patients require prolonged courses of corticosteroids to control their disease. Together these factors damage the quality of life of patients with recurrent pericarditis. Currently there is limited understanding of why pericarditis comes back in some patients, and how best to treat it when it does.

PAIReD (Pericarditis: Auto-Inflammation in Recurrent Disease) is an observational research study funded by the British Heart Foundation that will investigate the role inflammation plays in recurrent pericarditis. Patients with recurrent pericarditis and other auto-inflammatory diseases will be recruited from the specialist fever clinic at the Royal Free Hospital, where they will be asked to donate blood up to six times over a three year period. Healthy participants will be recruited at the Royal Free Hospital or Guy's Hospital. Relatives of participants with recurrent pericarditis will be recruited at the Royal Free Hospital. They latter two groups will attend one appointment where blood or saliva samples will be taken. A subset of participants will also provide fingerstick blood samples and questionnaires from home, for up to one year.

Clinical data will be collected prospectively and by retrospective case note review. Blood from participants will be analysed to look at how the immune cells of patients with recurrent pericarditis function during the course of their disease, and to look for genetic changes in patients with recurrent pericarditis that might contribute to their condition. Together this knowledge has to potential to help clinicians diagnose and monitor patients with recurrent pericarditis more accurately, and researchers to design more effective treatments.

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Conditions studied

  • Idiopathic Recurrent Pericarditis

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03

In context

Pericarditis

54 studies on the registry are indexed under Pericarditis; 23 are open to participants now.

This study's planned enrollment of 119 is below the median of 300 across 25 observational studies indexed under Pericarditis.

Browse Pericarditis studies →

Lead sponsor

King's College London is the lead sponsor of 520 studies on the registry; 126 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
16 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Study population for cases comprises patients under the care of the recruiting sites with a diagnosis of RP.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Recurrent pericarditis (RP) cases:

  1. Patients with RP, diagnosed by a clinician, meeting the European Society of Cardiology (ESC) diagnostic criteria.
  2. Where the aetiology of the RP is defined as idiopathic (i.e. there is no other aetiology identified, such as infective, malignant, post cardiac injury, as part of an condition, as part of another known auto-inflammatory disease).

Relatives of RP cases:

First degree relatives of participants meeting the criteria for, and included in the study as, RP cases.

Disease Controls:

Patients with a systemic auto-inflammatory disease, diagnosed by a trained specialist.

Healthy Controls:

Sex, ethnicity and aged matched healthy individuals who do not have a personal history of pericarditis or systemic auto-inflammatory disease.

Exclusion criteria

Exclusion Criteria:

  1. Individuals under 12 years of age
  2. Adults who are unable to give written
  3. Individuals who have received a blood transfusion within 4 weeks
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

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Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
119 participants (estimated)
Patient registry
No

Groups and cohorts

  • Participants with recurrent pericarditis (RP)

    Patients aged 16 or over with (1) RP, diagnosed by a clinician, meeting the European Society of Cardiology (ESC) diagnostic criteria, and (2) where the aetiology of the RP is defined as idiopathic (i.e. there is no other aetiology identified, such as infective, malignant, post cardiac injury, as part of an autoimmune condition, as part of another known auto-inflammatory disease).

  • Participants with systemic auto-inflammatory diseases (disease controls)

    Patients aged 16 or over with a systemic auto-inflammatory disease, diagnosed by a trained specialist.

  • Healthy volunteers (healthy controls)

    Sex, ethnicity and aged matched healthy individuals who do not have a personal history of pericarditis or systemic auto-inflammatory disease.

  • Relatives of individuals with recurrent pericarditis (familial controls)

    First degree relatives of participants meeting the criteria for, and included in the study as, RP cases, who are aged 16 or over.

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What researchers measure

Primary outcomes

  1. Immune cell phenotype

    Exploratory analysis of the proportion, maturity and activation state of different immune cell populations in the peripheral blood, comparing cases and controls and correlated to disease activity in cases

    Time frame: Three years

  2. Immune cell gene expression

    Exploratory analysis of the transcriptome in immune cells in cases compared to controls, and correlated to disease activity in cases.

    Time frame: Three years

Secondary outcomes

  1. Genotype

    Candidate gene analysis and whole exome sequencing of cases and familial controls.

    Time frame: Three years

  2. Clinical phenotype

    Characterisation of clinical course of cohort of RP patients, gathering data on disease activity and quality of life prospectively over three years

    Time frame: Three years

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Study locations

1 of 2 sites recruiting
  • Royal Free Hospital NHS Foundation Trust
    London, NW3 2QG, United Kingdom
    Recruiting
  • Guy's and St Thomas' NHS Foundation Trust
    London, SE1 9RT, United Kingdom
    Not yet recruiting
    • Catherine Smith · Contact
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 17, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04996108
Collaborators
Guy's and St Thomas' NHS Foundation Trust, Royal Free Hospital NHS Foundation Trust
Responsible party
Sponsor
First posted
Aug 9, 2021
Start date
Jul 29, 2021
Primary completion
Jun 13, 2024 (estimated)
Completion
Jun 13, 2024 (estimated)
Last update
Aug 17, 2021

Study contacts

Claire J Peet, BMBCh MRCP
Contact
claire.peet@kcl.ac.uk
02071886412
Claire J Peet, BMBCh MRCP
principal investigator · Clinical research fellow

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jul 2021. You cannot join it, but the record below documents what was studied.

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