- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06197152
Identification and Clinical Validation of Biomarkers Associated With Clinical Severity in Adults Infected With RSV (ARF-RSV)
Identification and Clinical Validation of Biomarkers Associated With Clinical Severity in Adults Infected With Respiratory Syncytial Virus
A short description, 5000 characters Intro: Respiratory Syncytial Virus (RSV) is a frequent, ubiquitous agent of respiratory viral infections. It is the leading viral cause of lower respiratory tract infection (LRTI) in infants and also causes significant morbidity and mortality in adults, especially in the elderly, in patients with cardiorespiratory comorbidities [e.g., patients with Chronic Obstructive Pulmonary Disease (COPD) and/or heart failure], and in immunocompromised patients. Clinical phenotyping of RSV respiratory infections has shown that the occurrence of LRTI in RSV-infected patients is associated with the need for ventilatory support and an increased risk of mortality. Virological data also suggest that there is a relationship between high nasopharyngeal viral replication levels and a poor prognosis, although these data have not been confirmed in other studies. Beyond viral load, the impact of viral subtypes on the severity of RSV infection is controversial. Few data have explored the prognostic value of genetic diversity (i.e., role of RSV variants, mutations occurring during clinical course) in RSV-infected adult patients with acute respiratory failure.
Objective: The main goal of the present study is to identify and validate biomarkers associated with RSV severity in adults infected with RSV that will be useful to guide treatment decisions in the future. This study will additionally characterize the thus far unknown genetic diversity of RSV in hospitalized adults with severe and mild infections, in order to anticipate virological escape mechanisms from current and future treatments.
Method: This is a prospective multicenter cohort study of patients with RSV infection admitted to the hospital. These patients will be followed-up for 28 days. Nasopharyngeal samples will be obtained sequentially (i.e., at day 0, day 3-4, day 5-7, and day 14 of inclusion) for virological and transcriptomic analyses. Blood samples will also be collected at day 0 (EDTA tubes and Paxgene tubes) for peripheral transcriptomic analyses and plasma banking.
The 100 first patients included in the study will be allocated to the development cohort and the last 100 patients will be allocated to the validation cohort.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Nicolas de Prost, MD, PhD
- Phone Number: (+33) 1 49 81 23 94
- Email: nicolas.de-prost@aphp.fr
Study Contact Backup
- Name: Slim Fourati, MD, PhD
- Phone Number: (+33) 1 45 17 81 45
- Email: slim.fourati@aphp.fr
Study Locations
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Créteil, France, 94010
- Recruiting
- Intensive Care Unit Henri Mondor APHP
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Contact:
- Nicolas DE PROST, MD-PHD
- Email: nicolas.de-prost@aphp.fr
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Contact:
- PIERRE BAY, MD
- Email: pierre.bay@aphp.fr
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Patients with RSV diagnosis : Patients hospitalized for RSV respiratory infection requiring hospital admission.
Control group : patients admitted for acute respiratory failure free for RSV or any other infection.
Description
Group of patients with RSV diagnosis
Inclusion Criteria:
- Age > 18 years
- Positive RSV RT-PCR in nasopharyngeal swab
- Patient admitted to the hospital (intensive care unit or medical ward admission at inclusion) with clinical signs of lower respiratory tract infection (defined as the presence of two or more respiratory signes (cough, dyspnea, sputum production, wheezing, tachypnea (respiratory rate>20/min) or one respiratory sign plus one or more systemic symptoms (fatigue and fever)) requiring hospitalization.
- No objection letter (from the patient or a member of family if the patient is not physically able to give consent
Exclusion Criteria:
- Co-infection with other respiratory viruses
- Persons under guardianship/guardianship
- AME (state medical aid) patient
Group of "control" patients
Inclusion Criteria :
- Age>18 years
- Patient's consent
- Enrolled in a social security plan
- Admitted for an acute respiratory syndrome
- No diagnosis of respiratory infection in the 4 weeks prior to inclusion
- Negative RSV nasopharyngeal PCR (or other respiratory specimen) collected within the last 48 hours
- No immunosuppression (HIV infection, bone marrow or solid organ transplantation, post-chemotherapy aplasia, immunosuppressive therapy, corticosteroid therapy (> 200 mg/d hydrocortisone or equivalent within 4 weeks prior to inclusion)
Exclusion Criteria :
- Persons under guardianship/guardianship
- AME (state medical aid) patient
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
100 patients with RSV diagnosis
Patients with acute respiratory infection and positive nasopharyngeal PCR or other respiratory specimen for RSV.
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33 control patients
Patient admitted for acute respiratory syndrome with no diagnosis of respiratory infection or immunosuppression.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Inflammatory and immune response
Time Frame: within 72h of hospitalization
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Patients with severe disease, defined as developing acute respiratory failure with a World Health Organization (WHO) ten-point scale ≥6 at any time of hospital stay, and those with mild disease (WHO ten-point scale remaining <6 during hospital stay) will be compared using several biological tools, in particular the inflammatory and immune response assessed by transcriptomic analyses in peripheral blood and in respiratory samples (nasopharyngeal swabs and bronchoalveolar lavage fluid or tracheal aspirates when available).
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within 72h of hospitalization
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Inflammatory and immune response during hospital stay
Time Frame: during hospitalization (until day 28).
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Differences between the two groups of RSV-infected patients, with severe disease (WHO ten-point scale ≥6) versus mild disease (WHO ten-point scale remaining <6), of inflammatory and immune responses assessed by transcriptomic analyses in respiratory samples (nasopharyngeal swabs and bronchoalveolar lavage fluid or tracheal aspirates when available).
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during hospitalization (until day 28).
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RSV genetic variability during hospitalization
Time Frame: during hospitalization (until day 28)
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Relationship between viral level dynamics and intra-individual viral genetic variability in respiratory samples (nasopharyngeal swabs and bronchoalveolar lavage fluid or tracheal aspirates when available).
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during hospitalization (until day 28)
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RSV genetic variability at admission
Time Frame: during hospitalization (within 72h of hospitalization)
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Differences between the two groups of RSV-infected patients, with severe disease (WHO ten-point scale ≥6) versus mild disease (WHO ten-point scale remaining <6), of inter-individual viral genetic variability in respiratory samples (nasopharyngeal swabs).
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during hospitalization (within 72h of hospitalization)
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Collaborators and Investigators
Investigators
- Study Chair: Pierre-André Natella, PhD, APHP URC
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- APHP221290
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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