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COVID-19C5-COVNCT04369820

C5a Receptor Expression - COVID-19 (C5-COV)

A study testing draw blood in people with COVID-19, run by Assistance Publique Hopitaux De Marseille at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The pathophysiology of ARDS is linked to an uncontrolled inflammatory response at the level of alveolo-capillary membrane, mediated by neutrophils and mononuclear cells. The complement system and anaphylatoxin C5a have shown central role in the recruitment of these pro-inflammatory cells and more broadly in the… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
COVID-19
What is being tested?
draw blood
Could I receive a placebo?
No, everyone receives an active treatment
How many people
61 participants
Where
1 siteFrance
Study dates
31 Mar 2020to 9 Aug 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • For patients in resuscitation unit with ARDS linked to COVID-19:
  • Patient under invasive mechanical ventilation
  • PaO2 / FiO2 <300
  • PCR SARS-CoV-2 positive in a pharyngeal or respiratory sample
  • For control patients with COVID-19 without ARDS
  • Oxygen flow always less than 5 L / min
Show all 9Show fewer
  • PCR SARS-CoV-2 positive in a pharyngeal or respiratory sample
  • No passage in resuscitation unit
  • Favorable evolution

Who cannot join

  • Minors
  • Patient deprived of liberty
  • Patient's refusal to participate at study
  • Patient for whom therapeutic limitation measures such as non-admission to intensive care have been issued
  • Medullar aplasia

Trial locations and contacts

1 site in 1 country.

France1 site

  • Assistance Publique Hôpitaux de Marseille

    Marseille, 13354

Other trials in France

About this study

Official title: C5a Receptor Expression in Circulating Myeloid Cells in ARDS Secondary to COVID-19

The pathophysiology of ARDS is linked to an uncontrolled inflammatory response at the level of alveolo-capillary membrane, mediated by neutrophils and mononuclear cells. The complement system and anaphylatoxin C5a have shown central role in the recruitment of these pro-inflammatory cells and more broadly in the genesis of cytokinic storm syndrome. C5a acts via receptors C5aR and C5L2.

This is a preliminary study aimed at studying the expression of the C5a receptor on myeloid cells in peripheral blood of patients with ARDS secondary to COVID-19.

Read more

This study has of primary objective to show there is an overexpression of the C5a receptor in patients with ARDS secondary to COVID-19 compared to control patients (patients with COVID-19 without respiratory distress and healthy volunteers).

The medium-term objective is to develop a clinical trial to test the effectiveness of anti-C5aR antibody in this condition.

Read the detailed description

The pathophysiology of ARDS is linked to an uncontrolled inflammatory response at the level of alveolo-capillary membrane, mediated by neutrophils and mononuclear cells. The complement system and anaphylatoxin C5a have shown central role in the recruitment of these pro-inflammatory cells and more broadly in the genesis of cytokinic storm syndrome. C5a acts via receptors C5aR and C5L2.

This is a preliminary study aimed at studying the expression of the C5a receptor on myeloid cells in peripheral blood of patients with ARDS secondary to COVID-19.

This study has of primary objective to show there is an overexpression of the C5a receptor in patients with ARDS secondary to COVID-19 compared to control patients (patients with COVID-19 without respiratory distress and healthy volunteers).

The medium-term objective is to develop a clinical trial to test the effectiveness of anti-C5aR antibody in this condition.

Conditions
COVID-19
Being tested
draw blood
Keywords
COVID-19, ARDS, C5a receptors
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • draw bloodOther

    40 mL blood sample will be taken within the first three days of hospitalization, a second sample will be taken between the 5th and 10th day of hospitalization and a third sample will be taken on the 10th day of hospitalization or the day of discharge if earlier.

Study groups in NCT04369820
Study groupRoleWhat they receive
COVID-19 PATIENTSExperimentalTwo blood samples (40mL) at 2 different points in time: 1. Within the first 72 hours of medical care in resuscitation unit or department. 2. Between the 5th and the 10th day of medical care (ideally at the end of the first week) or on the day of discharge of patient if it is earlier, or of death if it takes place earlier.
Receives: Other: draw blood

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Show an overexpression of C5a receptor in patients with ARDS secondary to COVID-19 compared to control patients (patients with COVID-19 without respiratory distress and healthy volunteers).

    The endpoint is the expression of the C5a receptor (C5aR) in peripheral blood myeloid cells, expressed as a percentage of cells expressing C5a receptor and as median fluorescence intensity (MFI), during the first 72 hours of patient management in resuscitation unit.

    Measured: 72 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Apr 2020
  2. Study start31 Mar 2020
  3. Primary completion30 Sep 2020
  4. Study completion9 Aug 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
61 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04369820
Sponsor's protocol ID
2020-14
Other IDs
IDRCB
Acronym
C5-COV
Status last verified
Aug 2023
First submitted
29 Apr 2020
Last updated
14 Aug 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Kinross P, Suetens C, Dias JG, Alexakis L, Wijermans A, Colzani E, Monnet DL; European Centre for Disease Prevention and Control (ECDC) Public Health Emergency Team; ECDC Public Health Emergency Team. Rapidly increasing cumulative incidence of coronavirus disease (COVID-19) in the European Union/European Economic Area and the United Kingdom, 1 January to 15 March 2020. Euro Surveill. 2020 Mar;25(11):2000285. doi: 10.2807/1560-7917.ES.2020.25.11.2000285. Epub 2020 Mar 16.

    PubMed 32186277

  • Parmet WE, Sinha MS. Covid-19 - The Law and Limits of Quarantine. N Engl J Med. 2020 Apr 9;382(15):e28. doi: 10.1056/NEJMp2004211. Epub 2020 Mar 18. No abstract available.

    PubMed 32187460

  • Gostin LO, Hodge JG Jr, Wiley LF. Presidential Powers and Response to COVID-19. JAMA. 2020 Apr 28;323(16):1547-1548. doi: 10.1001/jama.2020.4335. No abstract available.

    PubMed 32186661

  • Grasselli G, Pesenti A, Cecconi M. Critical Care Utilization for the COVID-19 Outbreak in Lombardy, Italy: Early Experience and Forecast During an Emergency Response. JAMA. 2020 Apr 28;323(16):1545-1546. doi: 10.1001/jama.2020.4031. No abstract available.

    PubMed 32167538

  • Zhou F, Yu T, Du R, Fan G, Liu Y, Liu Z, Xiang J, Wang Y, Song B, Gu X, Guan L, Wei Y, Li H, Wu X, Xu J, Tu S, Zhang Y, Chen H, Cao B. Clinical course and risk factors for mortality of adult inpatients with COVID-19 in Wuhan, China: a retrospective cohort study. Lancet. 2020 Mar 28;395(10229):1054-1062. doi: 10.1016/S0140-6736(20)30566-3. Epub 2020 Mar 11.

    PubMed 32171076

  • Guan WJ, Ni ZY, Hu Y, Liang WH, Ou CQ, He JX, Liu L, Shan H, Lei CL, Hui DSC, Du B, Li LJ, Zeng G, Yuen KY, Chen RC, Tang CL, Wang T, Chen PY, Xiang J, Li SY, Wang JL, Liang ZJ, Peng YX, Wei L, Liu Y, Hu YH, Peng P, Wang JM, Liu JY, Chen Z, Li G, Zheng ZJ, Qiu SQ, Luo J, Ye CJ, Zhu SY, Zhong NS; China Medical Treatment Expert Group for Covid-19. Clinical Characteristics of Coronavirus Disease 2019 in China. N Engl J Med. 2020 Apr 30;382(18):1708-1720. doi: 10.1056/NEJMoa2002032. Epub 2020 Feb 28.

    PubMed 32109013

  • Herrero R, Sanchez G, Lorente JA. New insights into the mechanisms of pulmonary edema in acute lung injury. Ann Transl Med. 2018 Jan;6(2):32. doi: 10.21037/atm.2017.12.18.

    PubMed 29430449

  • Cao B, Wang Y, Wen D, Liu W, Wang J, Fan G, Ruan L, Song B, Cai Y, Wei M, Li X, Xia J, Chen N, Xiang J, Yu T, Bai T, Xie X, Zhang L, Li C, Yuan Y, Chen H, Li H, Huang H, Tu S, Gong F, Liu Y, Wei Y, Dong C, Zhou F, Gu X, Xu J, Liu Z, Zhang Y, Li H, Shang L, Wang K, Li K, Zhou X, Dong X, Qu Z, Lu S, Hu X, Ruan S, Luo S, Wu J, Peng L, Cheng F, Pan L, Zou J, Jia C, Wang J, Liu X, Wang S, Wu X, Ge Q, He J, Zhan H, Qiu F, Guo L, Huang C, Jaki T, Hayden FG, Horby PW, Zhang D, Wang C. A Trial of Lopinavir-Ritonavir in Adults Hospitalized with Severe Covid-19. N Engl J Med. 2020 May 7;382(19):1787-1799. doi: 10.1056/NEJMoa2001282. Epub 2020 Mar 18.

    PubMed 32187464

  • Gralinski LE, Sheahan TP, Morrison TE, Menachery VD, Jensen K, Leist SR, Whitmore A, Heise MT, Baric RS. Complement Activation Contributes to Severe Acute Respiratory Syndrome Coronavirus Pathogenesis. mBio. 2018 Oct 9;9(5):e01753-18. doi: 10.1128/mBio.01753-18.

    PubMed 30301856

  • Wang R, Xiao H, Guo R, Li Y, Shen B. The role of C5a in acute lung injury induced by highly pathogenic viral infections. Emerg Microbes Infect. 2015 May;4(5):e28. doi: 10.1038/emi.2015.28. Epub 2015 May 6.

    PubMed 26060601

  • Jiang Y, Zhao G, Song N, Li P, Chen Y, Guo Y, Li J, Du L, Jiang S, Guo R, Sun S, Zhou Y. Blockade of the C5a-C5aR axis alleviates lung damage in hDPP4-transgenic mice infected with MERS-CoV. Emerg Microbes Infect. 2018 Apr 24;7(1):77. doi: 10.1038/s41426-018-0063-8.

    PubMed 29691378

  • Stevens JH, O'Hanley P, Shapiro JM, Mihm FG, Satoh PS, Collins JA, Raffin TA. Effects of anti-C5a antibodies on the adult respiratory distress syndrome in septic primates. J Clin Invest. 1986 Jun;77(6):1812-6. doi: 10.1172/JCI112506.

    PubMed 3711336

  • Czermak BJ, Sarma V, Pierson CL, Warner RL, Huber-Lang M, Bless NM, Schmal H, Friedl HP, Ward PA. Protective effects of C5a blockade in sepsis. Nat Med. 1999 Jul;5(7):788-92. doi: 10.1038/10512.

    PubMed 10395324

Questions about this trial

What is this clinical trial studying?

A study testing draw blood in people with COVID-19, run by Assistance Publique Hopitaux De Marseille at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Aug 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Show an overexpression of C5a receptor in patients with ARDS secondary to COVID-19 compared to control patients (patients with COVID-19 without respiratory distress and healthy volunteers). (time frame: 72 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04369820, which also lists 13 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Aug 2023.

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