Covid19MicrobioCOVIDNCT04669938
Role of the Microbiota in the Evolution of the SARS-CoV-2 Disease,COVID-19, in Hospitalized Patients
An observational study of Covid19, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.
Trial summary
Patients hospitalized for COVID-19 may need intensive care (e.g. mechanical ventilation) during hospitalization. Some risk factors are already known but better targeting of such patients is still needed, at least because existing risk factors are not strong enough to provide an accurate prediction. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Covid19
- What is being tested?
- oropharyngeal and intestinal microbiota, host genotype and host immune factors
- How many people
- 200 participants
- Where
- 1 siteFrance
- Study dates
- 4 Dec 2020to 31 Aug 2022
- Phase
- Observational
- 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
- No healthy volunteers
- Adult, Older adult
Study population: Adult patient with documented SARS-CoV-2 infection requiring hospitalization.
Who may be able to join
- Adult patient with documented SARS-CoV-2 infection requiring hospitalization.
Who cannot join
- Lack of consent
- Patients hospitalized in an intensive care unit
- Patient under guardianship or curatorship
Trial locations and contacts
1 site in 1 country.
France1 site, 1 recruiting
- Recruiting
LESCURE
Paris
xavier lescure, xavier.lescure@aphp.fr
About this study
Official title: Role of the Microbiota in the Evolution of the SARS-CoV-2 Disease in Hospitalized Patients
Patients hospitalized for COVID-19 may need intensive care (e.g. mechanical ventilation) during hospitalization. Some risk factors are already known but better targeting of such patients is still needed, at least because existing risk factors are not strong enough to provide an accurate prediction. Care organization would benefit for such a predictive tool.
Oropharyngeal and gut microbiota could potentially fill a significant gap in predictive performances. The investigators therefore propose to sample 200 patients (oropharyngeal and rectal swab) admitted in infectious disease department at Bichat Hospital and at high risk of needing intensive care during hospitalization. The investigators plan to perform metagenomic sequencing and bioinformatic analysis of these samples to characterize the diversity of bacterial species present in the oropharynx and the gut and to identify new factors associated with the need for intensive care. Aside metagenomic analyses, The investigators will perform semi-quantitative cultures of the oropharyngeal and gut microbiota to identify and quantify pathogens in order to predict the risk of bacterial infections in COVD-19 patients.
Read more
For patients transferred in intensive care unit, The investigators will to perform another series of samples to better characterize the evolution of microbiota during mechanical ventilation and identify factors associated with the risk of developing a ventilator-associated pneumonia.
Microbiota data will be considered together with the host genotype, the viral sequence and a deep immunological profiling to identify the main determinants of the evolution toward severity of COVID-19.
Read the detailed description
Patients hospitalized for COVID-19 may need intensive care (e.g. mechanical ventilation) during hospitalization. Some risk factors are already known (e.g. sex, comorbidities, initial clinical presentation inflammatory cytokines), but better targeting of such patients is still needed, at least because existing risk factors are not strong enough to provide an accurate prediction. Care organization would benefit for such a predictive tool.
Oropharyngeal and gut microbiota could fill a significant gap in predictive performances. The investigators therefore propose to take advantage of the French-COVID cohort and sample 200 patients (oropharyngeal and rectal swab) admitted in infectious disease department at Bichat Hospital and at high risk of needing intensive care during hospitalization. The investigators plan to perform metagenomic sequencing and bioinformatic analysis of these samples to characterize the diversity of bacterial species present in the oropharynx and the gut and to identify new factors associated with the need for intensive care. Aside metagenomic analyses, The investigators will perform semi-quantitative cultures of the oropharyngeal and gut microbiota to identify and quantify pathogens in order to predict the risk of bacterial infections in COVD-19 patients.
The genetic determinants of the host (the patient) could also be predictive of the severity of the disease and so does the immunological response to the COVID-19. Likewise, it has been suggested that certain mutations (notably the D614G mutation) of the viral sequence could be associated with the infectivity of the virus.
In addition to the direct role of the microbiota in the course of infection, the immune characteristics specific to the host, by themselves or in interaction with the microbiota, could play an important role in the progression of the disease.
This project focuses on the clinical characterization of COVID-19 and its evolution, as well as disease management.
The research focuses on 4 main areas:
- Characterization of the oropharyngeal and intestinal microbiota of patients with COVID-19
- Characteristics of the host (genotype)
- Immune characteristics of the host
- Characteristics of the SARS-CoV-2 viral genome
For patients transferred in intensive care unit, The investigators will to perform another series of samples to better characterize the evolution of microbiota during mechanical ventilation and identify factors associated with the risk of developing a ventilator-associated pneumonia.
- Conditions
- Covid19
- Being tested
- oropharyngeal and intestinal microbiota, host genotype, host immune factors, viral sequence
- Medical subject headings
- COVID-19
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
oropharyngeal and intestinal microbiotaOther
analysis of oropharyngeal and intestinal microbiota
host genotypeOther
analysis of a part of host genotype
host immune factorsOther
analysis of host immune factors
viral sequenceOther
analysis of viral sequence
| Study group | Role | What they receive |
|---|---|---|
| Patients hospitalized for COVID-19 | Not described Receives: Other: oropharyngeal and intestinal microbiota; Other: host genotype; Other: host immune factors; Other: viral sequence |
What is being measured
The primary outcome is the main question the study is designed to answer.
Identify risk factors associated with severe forms of COVID-19 requiring transfer to ICU
The main endpoint is the indication of worsening of the general condition requiring transfer to ICU
Measured: day 14
Secondary outcomes (2)
Link between the composition of the gut microbiota and admission to intensive care
Composition of the gut microbiota on admission to intensive care to predict the outcome of severe COVID-19 in patients transferred to the ICU (subgroup analysis)
Measured: 3 months
Predictive performance of semi-quantitative culture and rapid metagenomic evaluation
Predictive performance of semi-quantitative culture and rapid metagenomic evaluation of the oropharyngeal microbiota to predict the occurrence of VAP in patients admitted to an ICU and mechanically ventilated (subgroup analysis).
Measured: 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Dec 2020
- Study start4 Dec 2020
- Primary completion4 Dec 2021
- Study completion31 Aug 2022 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Covid19Studies of the same condition, open and under way.
- More trials run by Assistance Publique - Hôpitaux de ParisThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Prospective
- Enrolment
- 200 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Assistance Publique - Hôpitaux de Paris
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04669938
- Sponsor's protocol ID
- APHP201083
- Acronym
- MicrobioCOVID
- Status last verified
- Mar 2022
- First submitted
- 19 Nov 2020
- Last updated
- 24 Jun 2022
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 24 Jun 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Role of the Microbiota in the Evolution of the SARS-CoV-2 Disease in Hospitalized Patients
- ClinicalTrials.gov ID
- NCT04669938
- Acronym / sponsor ID
- MicrobioCOVID / APHP201083
- Conditions
- Covid19
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 200 participants (estimated)
- Lead sponsor
- Assistance Publique - Hôpitaux de ParisUniversity, hospital or other
- Study start
- 4 Dec 2020 (actual)
- Primary completion
- 4 Dec 2021 (actual)
- Study completion
- 31 Aug 2022 (estimated)
- First posted
- 17 Dec 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Patients hospitalized for COVID-19 may need intensive care (e.g. mechanical ventilation) during hospitalization. Some risk factors are already known but better targeting of such patients is still needed, at least because existing risk factors are not strong enough to provide an accurate prediction. Care organization would benefit for such a predictive tool.
Oropharyngeal and gut microbiota could potentially fill a significant gap in predictive performances. The investigators therefore propose to sample 200 patients (oropharyngeal and rectal swab) admitted in infectious disease department at Bichat Hospital and at high risk of needing intensive care during hospitalization. The investigators plan to perform metagenomic sequencing and bioinformatic analysis of these samples to characterize the diversity of bacterial species present in the oropharynx and the gut and to identify new factors associated with the need for intensive care. Aside metagenomic analyses, The investigators will perform semi-quantitative cultures of the oropharyngeal and gut microbiota to identify and quantify pathogens in order to predict the risk of bacterial infections in COVD-19 patients.
For patients transferred in intensive care unit, The investigators will to perform another series of samples to better characterize the evolution of microbiota during mechanical ventilation and identify factors associated with the risk of developing a ventilator-associated pneumonia.
Microbiota data will be considered together with the host genotype, the viral sequence and a deep immunological profiling to identify the main determinants of the evolution toward severity of COVID-19.
Detailed description
Patients hospitalized for COVID-19 may need intensive care (e.g. mechanical ventilation) during hospitalization. Some risk factors are already known (e.g. sex, comorbidities, initial clinical presentation inflammatory cytokines), but better targeting of such patients is still needed, at least because existing risk factors are not strong enough to provide an accurate prediction. Care organization would benefit for such a predictive tool.
Oropharyngeal and gut microbiota could fill a significant gap in predictive performances. The investigators therefore propose to take advantage of the French-COVID cohort and sample 200 patients (oropharyngeal and rectal swab) admitted in infectious disease department at Bichat Hospital and at high risk of needing intensive care during hospitalization. The investigators plan to perform metagenomic sequencing and bioinformatic analysis of these samples to characterize the diversity of bacterial species present in the oropharynx and the gut and to identify new factors associated with the need for intensive care. Aside metagenomic analyses, The investigators will perform semi-quantitative cultures of the oropharyngeal and gut microbiota to identify and quantify pathogens in order to predict the risk of bacterial infections in COVD-19 patients.
The genetic determinants of the host (the patient) could also be predictive of the severity of the disease and so does the immunological response to the COVID-19. Likewise, it has been suggested that certain mutations (notably the D614G mutation) of the viral sequence could be associated with the infectivity of the virus.
In addition to the direct role of the microbiota in the course of infection, the immune characteristics specific to the host, by themselves or in interaction with the microbiota, could play an important role in the progression of the disease.
This project focuses on the clinical characterization of COVID-19 and its evolution, as well as disease management.
The research focuses on 4 main areas:
- Characterization of the oropharyngeal and intestinal microbiota of patients with COVID-19
- Characteristics of the host (genotype)
- Immune characteristics of the host
- Characteristics of the SARS-CoV-2 viral genome
For patients transferred in intensive care unit, The investigators will to perform another series of samples to better characterize the evolution of microbiota during mechanical ventilation and identify factors associated with the risk of developing a ventilator-associated pneumonia.
Study design
- Observational model
- Case only
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Patients hospitalized for COVID-19 | – | Other: oropharyngeal and intestinal microbiota, Other: host genotype, Other: host immune factors, Other: viral sequence |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Adult patient with documented SARS-CoV-2 infection requiring hospitalization.
Key inclusion criteria (1 listed)
- Adult patient with documented SARS-CoV-2 infection requiring hospitalization.
Key exclusion criteria (3 listed)
- Lack of consent
- Patients hospitalized in an intensive care unit
- Patient under guardianship or curatorship
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| oropharyngeal and intestinal microbiotaanalysis of oropharyngeal and intestinal microbiota | Other | Patients hospitalized for COVID-19 |
| host genotypeanalysis of a part of host genotype | Other | Patients hospitalized for COVID-19 |
| host immune factorsanalysis of host immune factors | Other | Patients hospitalized for COVID-19 |
| viral sequenceanalysis of viral sequence | Other | Patients hospitalized for COVID-19 |
Primary outcome
Identify risk factors associated with severe forms of COVID-19 requiring transfer to ICU
Time frame: day 14
The main endpoint is the indication of worsening of the general condition requiring transfer to ICU
2 secondary outcomes
Link between the composition of the gut microbiota and admission to intensive care
Time frame: 3 months
Predictive performance of semi-quantitative culture and rapid metagenomic evaluation
Time frame: 3 months
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jun 2022.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Covid19, run by Assistance Publique - Hôpitaux de Paris 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 1 inclusion and 3 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: status not confirmed, as of the sponsor's last update on 24 Jun 2022. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Etienne Ruppé (1 40 25 80 00 ext. 33, etienne.ruppe@aphp.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Identify risk factors associated with severe forms of COVID-19 requiring transfer to ICU (time frame: day 14). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 24 Jun 2022; AzTrials last refreshed its copy on 8 Nov 2026.