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Clinical Trial Summary

This is a prospective observational study of vaccine efficacy and safety in adult patients with malignancies (melanoma/Hodgkin's lymphoma/Non-small cell lung cancer). The primary objective is to compare serotype specific immunoglobulin G (IgG) antibody titres before and after pneumococcal vaccination in patients receiving Immune Checkpoint Inhibitors (ICI). As an explorative objective, serotype specific IgG antibodies measured by ELISA and those measured by Opsonophagocytosis assay (OPA) after pneumococcal vaccination in patients receiving ICI will be correlated. In addition, the incidence of immune related adverse events (irAE) in patients vaccinated during ICI treatment will be determined.


Clinical Trial Description

Physicians will be informed by mail and pocket cards with all necessary information about the study, in particular eligibility criteria. Patients currently receiving Immune Checkpoint Inhibitors will be approached by their treating physicians in case of an already scheduled vaccination against S. pneumonia. If a patient agrees to participate in the study and to sign an informed consent form, basic data on demographics, underlying disease, comorbidities, and irAE will be obtained from the electronic health record and entered into the eCRF. Pneumococcal antibody titers will be drawn at baseline and after 30 days. We will actively follow-up on study patients for four months after enrolment and screen health records of the enrolled patients after four months to record occurrence of irAE. A blood sample (9 ml) will be drawn before vaccination. Vaccination will either be performed by the treating physician or by a general practitioner. After 30 days, a second blood sample will be taken during an already planned visit at the (outpatient) clinic. Titer assessment will be performed along STIKO recommendations for immunocompromised patients. All samples for ELISA and OPA titer determination will be stored frozen at Department I for Internal Medicine and titers will be analyzed in batch at the end of this study. All therapies and diagnostics including vaccinations will be administered solely as part of clinical routine and as recommended by appropriate guidelines (RKI STIKO recommendations). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03989050
Study type Observational
Source University of Cologne
Contact
Status Withdrawn
Phase
Start date January 1, 2022
Completion date June 1, 2024

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