To assess the efficacy of reduced duration prophylaxis followed by immuno-guided prophylaxis to prevent cytomegalovirus disease.
Prolonged use of antivirals to prevent the development of cytomegalovirus (CMV) disease in lung transplant patients has been shown to have significant side effects, for which alternatives are being sought to reduce their use. The monitoring of cell immunity against CMV could be an alternative as it has shown to be useful in identifying transplant patients at low risk of infection, who could benefit from shorter prophylaxis. The aim of the CYTOCOR study is to demonstrate that the combination of a reduced prophylaxis strategy with subsequent CMV-specific immunological monitoring would allow CMV infection to be controlled in lung transplant patients as effectively as the usual strategy (prophylaxis followed by pre-emptive therapy), while reducing the side effects of antivirals due to the shorter duration of prophylaxis.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
150
Valganciclovir is a L-valyl ester of ganciclovir that exists as a mix of 2 diastereomers. After administration, both are converted to ganciclovir by esterases. Ganciclovir is a synthetic analogue of 2'-deoxyguanosine, it inhibits replication of cytomegalovirus. In CMV-infected cells it's phosphorylated (phosphorylation is dependent on the viral kinase and occurs preferentially in virus-infected cells). Ganciclovir activity is due to inhibition of viral DNA synthesis by ganciclovir triphosphate.
Ganciclovir is a synthetic analogue of 2'-deoxyguanosine, it inhibits replication of cytomegalovirus. In CMV-infected cells it's phosphorylated (phosphorylation is dependent on the viral kinase and occurs preferentially in virus-infected cells). Ganciclovir activity is due to inhibition of viral DNA synthesis by ganciclovir triphosphate.
Hospital Universitario Marques de Valdecilla
Santander, Cantabria, Spain
Hospital Universitario Puerta de Hierro
Majadahonda, Madrid, Spain
Hospital Universitario de A Coruña
A Coruña, Spain
Hospital Universitario Vall D'Hebron
Barcelona, Spain
Cytomegalovirus disease incidence rate at 18 months after lung transplantation.
Cytomegalovirus disease incidence rate at 18 months after lung transplantation.
Time frame: 18 months after subject's transplantation.
INFG cut-off point other than 0.2 IU/mL
For patients of the experimental group (3+9) in which immuno-guided prophylaxis is used based on QF-CMV Reactive (cut-off 0.2 IU/mL of IFNG) and who develop CMV disease, a secondary objective will be to assess whether an INFG cut-off point other than 0.2 IU/mL could predict protection against the disease more reliably.
Time frame: 18 months after subject's transplantation.
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Hospital Univesitario Reina Sofía
Córdoba, Spain
Hospital Universitario 12 de Octubre
Madrid, Spain
Hospital Universitario La Fe
Valencia, Spain