Functional Impact of Acute Respiratory Viral Infections in Older Adults

Recruiting now

Conditions studied: Respiratory Infections in Old Age

In brief

The prevention of infectious diseases in older adults remains a major public health challenge, as acute respiratory infections are a leading cause of hospitalisation, mortality, and functional decline worldwide. Immunosenescence and environmental exposures increase susceptibility to infection and reduce vaccine effectiveness in this population. Respiratory viruses, including influenza, SARS-CoV-2, respiratory syncytial virus, and human metapneumovirus, account for a substantial share of this burden, much of which is vaccine-preventable. However, their impact on functional decline and recovery in older adults remains insufficiently characterized. This international study aims to assess the effect of hospitalization for major respiratory viral infections on loss of autonomy in individuals aged 60 years and older, to inform targeted prevention and vaccination strategies.

Key facts

Study ID

NCT07388173

Run by

University Hospital, Grenoble

People needed

1600

Starts

2026-01-15

Expected to finish

2028-06-15

Last updated by the study team

2026-05-08

Who can join

Age: 60 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Male or female subjects aged 60 years or older
• Hospitalized in a study center (emergency department, infectious disease, internal medicine or geriatric hospital wards…) for acute respiratory infection (refer to table 1 below for definition).
• Confirmed positive PCR test for influenza, SARS-CoV-2, RSV, or human metapneumovirus (hMPV). Participants with co-infections with other viral or bacterial agents can be included.

You may not qualify if…

• Participants with conditions significantly impacting short-term functional status, such as severe disability (ADL score ≤2 or Clinical Frailty Scale ≥7), terminal illness, palliative care needs, or inability to comprehend and complete study questionnaires due to severe stroke sequelae, complete sensory loss, advanced dementia, or similar impairments.
• Participants that refuse or are unable to answer the 3- and 6-months follow-up phone call assessments
• Positive laboratory test for single (mono-infection) virus other than influenza, SARS-CoV-2, RSV, or human metapneumovirus (HMPV)
• Participant in exclusion period for another study using an investigational / unapproved medicinal product.
• Participant referred to in articles L1121-5 to L1121-8 of the CSP (corresponding to all protected persons : pregnant woman, parturient, breastfeeding mother, person deprived of liberty by judicial or administrative decision, persons undergoing psychiatric care under articles L.3212-1 and L.3213-1 who do not fall under article L.1121-8, persons admitted to a healthcare or social institution for purposes other than research, minors, person under legal protection or unable to express consent).
• Individuals opposed to participating in the research
• Staff members with a hierarchical relationship to the principal investigator

Where it is running

• Hospital Clínic Barcelona Servicio de Geriatría — Barcelona, Spain (enrolling)
• Melun Hospital — Melun, France (enrolling)
• University of Rochester School of Medicine, Infectious Diseases Unit — Rochester, New York, United States (enrolling)
• University Hospital of Poitiers — Poitiers, France
• University Hospital of Reims — Reims, France
• University Hospital of Tours — Tours, France
• Klinikum Bayreuth, Klinik für Geriatrie — Bayreuth, Germany
• Abteilung Geriatrie Universitätsmedizin Göttingen, Abteilung Geriatrie — Göttingen, Germany
• Uniklinikum Jena, Klinik für Geriatrie — Jena, Germany
• Universitätsmedizin Mannheim, IV. Medizinische Klinik (Geriatrie) — Mannheim, Germany
• Klinikum Ulm, Geriatrisches Zentrum Agaplesion Bethesda — Ulm, Germany
• University of Bari, Bari — Bari, Italy
• Azienda Ospedaliero Universitaria "Renato Dulbecco", Catanzaro — Catanzaro, Italy
• ULSS 5 Polesana, Rovigo — Rovigo, Italy
• ASL 1 Imperiese, Sanremo — Sanremo, Italy
• Città di Torino, Torino — Torino, Italy
• APSS Trento, Geriatria, Trento — Trento, Italy
• ASUGI, Trieste — Trieste, Italy
• ULSS 3 Serenissima, Venice — Venice, Italy
• ULSS 9 Scaligera, Legnago, Verona — Verona, Italy
• Hospital Universitario Ramón y Cajal. Madrid Servicio de Geriatría — Madrid, Spain
• Hospital Universitario Virgen de la Arrixaca Murcia Servicio de Geriatría — Murcia, Spain
• University Hospital of Amiens — Amiens, France
• Villeneuve Saint Georges Hospital — Paris, France

Full record on ClinicalTrials.gov

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