The purpose of this study is to determine the sensitivity and specificity of QuantiFeron® and ImmuKnow® in combination for early detection of patients who will develop CMV infection in lung transplant patients with CMV-positive serology (R+) prior to transplant.
The secondary objectives of the study are: * To evaluate Cytomegalovirus (CMV)-specific immune response measured by QuantiFeron®. * To evaluate overall immune response measured by ImmuKnow®. * To study the course of QuantiFeron® and ImmuKnow®over the follow-up period. * To correlate levels of ImmuKnow® and QuantiFeron®. * To evaluate the relationship between levels and doses of immunosuppressants and their relationship to degree of overall immunosuppression (ImmuKnow®). * To evaluate the relationship between infections, immunological complications and degree of overall immunosuppression (ImmuKnow®).
Study Type
OBSERVATIONAL
Enrollment
92
Hospital Universitario A Coruña
A Coruña, A Coruña, Spain
Hospital Universitario Marqués de Valdecilla
Santander, Cantabria, Spain
Hospital Universitario Reina Sofía
Córdoba, Córdoba, Spain
Hospital Universitario 12 de Octubre
Madrid, Madrid, Spain
Quantification of interferon-γ produced by specific CD8+ (cluster of differentiation 8) T cells after ex-vivo stimulation with various CMV epitopes using the commercial assay QuantiFeron®- CMV
Quantiferon® is assessed multiple times and it will be considered positive when first positive test is assessed.
Time frame: up to 12 months from transplant
Measurement of overall immune response by determination of the activity of CD4+ (cluster of differentiation 4) T cells
InmunKnow® is assessed multiple times and it will be considered positive when first positive test is assessed.
Time frame: up to 12 months from transplant
Quantification of CMV viral replication in blood measured by PCR (polymerase chain reaction)
PCR is assessed multiple times and it will be considered positive when first positive test is assessed.
Time frame: up to 12 months from transplant
Measurement of immunosuppressive drugs: Blood levels of calcineurin inhibitors (tacrolimus or cyclosporine). Mycophenolate (or equivalent) dose and corticosteroid doses.
Time frame: up to 12 months from transplant
Complete blood count (WBC count) and routine biochemistry
Time frame: up to 12 months from transplant
Determination of glomerular filtration rate
Time frame: up to 12 months from transplant
Course of graft function by measuring GFR (glomerular filtration rate)
Time frame: up to 12 months from transplant
Complications since last visit: Infections, rejection episodes, chronic graft dysfunction, other complications
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Hospital Universitario Puerta de Hierro Majadahonda
Majadahonda, Madrid, Spain
Hospital Universitario y Politécnico la Fe
Valencia, Valencia, Spain
Hospital Vall d'Hebrón
Barcelona, Spain
Time frame: up to 12 months from transplant
CMV prophylaxis, drug and dosage. Serious Adverse events related or no related to the drug
Time frame: up to 12 months from transplant
Follow-up loss/death (if it occurs)
Time frame: up to 12 months from transplant