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Blood Biomarkers as Predictors of COVID-19 Disease Progression in Recently Infected Chronic Haemodialysis Patients (PredictCovid-D)

C

Centre Hospitalier Universitaire de Nice

Status

Completed

Conditions

COVID-19 by SARS-CoV-2 Infection

Treatments

Other: blood sample

Study type

Interventional

Funder types

Other

Identifiers

NCT04371510
20-PP-08

Details and patient eligibility

About

SARS-CoV-2 induces over-production of inflammatory cytokines, and especially interleukin-6 (IL-6). The apparently strong association between blood levels of inflammaory cytokines and SARS-CoV-2 disease severity has led clinicians to evaluate the administration of steroids or anti-IL-6 antagonists in severely ill patients. As of this day, biomarkers capable of predicting clinical disease progression in Covid-19 patients with mild-to-moderate symptoms have not yet been formally identified. Identifying such markers and evaluating their predictive value may be exploited to guide patient care management, and as such forms the core objective of this proposal.

Because of strong inter-individual variations in the ability of innate immune cells to produce cytokines, the hypothesis the investigators formulate and intend to test is that innate IL-6 responsiveness varies between recently infected Covid-19 patients and could predict disease outcome.

To test this hypothesis, the investigators propose to follow recently infected chronic haemodialysis patients with moderate Covid-19 symptoms. These patients stand a higher risk to progress to severe disease. The investigators plan to collect a blood sample in these patients using a system whereby ex vivo cytokine production is initiated in the very same blood collection tube without prior separation and centrifugation, thus reducing labour and operator bias. After incubation with or without known innate immune stimuli, the cell-free phase from each collection-culture tube will be assayed for IL-6 content. Associations between IL-6 content and disease outcome (encephalopathy, transfer to acute care or death) will be determined in 115 Covid-19 chronic haemodialysis patients with moderate symptoms followed in 9 centers.

Enrollment

18 patients

Sex

All

Ages

18 to 85 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Patients with end-stage chronic renal disease requiring haemodialysis support;
  • SARS-CoV-2 positive (RT-PCR);
  • COVID-19 symptoms at least once over a 8-day period preceding inclusion;
  • Hospitalized or outpatients in one of the study centers: CHU de Nice, CHU de Strasbourg, Hôpital Necker (APHP), Hôpital Kremlin Bicêtre (APHP), Hôpital Pitié-Salpétriêre (APHP), Hospices Civils de Lyon, CHU de Saint-Etienne, CHU de Montpellier, Hôpital La Conception (APHM);
  • Age > 18 years;
  • Free and informed consent.

Exclusion criteria

  • Age > 85 years ;
  • Peritoneal dialysis;
  • Onset of symptoms (fever and/or cough) for more than 8 days;
  • Acute respiraytory distress despite oxygen therapy, 02 ≥ 4L/min, arterial pressure < 85/55 mmHg or hemodynamic instability at time of inclusion, encephalopathy with Glasgow coma scale < 14;
  • Treatment with non-steroids anti-inflammatory agents within the laste 14 days preceding onset of symptoms;
  • Active bacterial or fungal infection documented at inclusion;
  • Pregnancy;
  • Under guardianship or curatorship;
  • Non-affiliated person with Social Security.

Trial design

Primary purpose

Other

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

18 participants in 1 patient group

Covid-19 patients with moderate symptoms
Other group
Description:
Whole blood, culture supernatant, serum
Treatment:
Other: blood sample

Trial contacts and locations

1

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Central trial contact

SICARD Antoine, Ph; BEN HASSEN-DAKHLAOUI NADIA CHU Nice <benhassen-dakhlaoui Nadia

Data sourced from clinicaltrials.gov

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