NCT04848493

A National, Multicentric, Observational, Prospective Study to Assess Immune Response to COVID-19 Vaccine in Frail Patients (VAX4FRAIL).

Study Summary

This is a multicentre observational study with the aim of evaluating the antibody and cellular response after vaccination for SARS-CoV-2 with Pfizer-BioNTech or Moderna vaccines in frail subjects with impaired immuno-competence, due to their underlying diseases or ongoing therapies.

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Interventions

COVID-19 vaccinesBIOLOGICAL
This is an observational prospective study whose general objective is to assess the impact of COVID-19 vaccination in terms of induction of humoral and cell-mediated immune responses in selected fragile (altered immunocompetence) populations.

Study Locations

FacilityCityStateCountry
IRCCS Istituto Tumori Giovanni Paolo IIBariBariItaly
IRCCS Azienda Ospedaliera UniversitariaBolognaBologhnaItaly
Ospedale Policlinico San Martino IRCCSGenovaGenovaItaly
Foindazione IRCCS Istituto Neurologico Carlo BestaMilanMilanoItaly
Fondazione IRCCS Istituto Nazionale dei TumoriMilanMilanoItaly
IRCCS Istituto Clinico HumanitasMilanMilanoItaly
IRCCS Ospedale San RaffaeleMilanMilanoItaly
Fondazione IRCCS Policlinico San MatteoPaviaPaviaItaly
Azienda USL IRCCS di Reggio EmiliaReggio EmiliaReggio EmiliaItaly
IRCCS Istituto Nazionale Tumori Regina ElenaRomaRomaItaly
IRCCS Istituto per le Malattie Infettive Lazzaro SpallanzaniRomaRomaItaly
Istituto Dermatologico San GallicanoRomaRomaItaly

Official Trial Information

View on ClinicalTrials.gov

Data sourced from ClinicalTrials.gov. Last updated: April 14, 2026