Individualization of Ganciclovir and Valganciclovir Doses Using Bayesian Prediction in Renal Transplant Patients.
2 other identifiers
interventional
60
1 country
1
Brief Summary
The objective of the present study is to optimize intravenous ganciclovir(GCV) and oral valganciclovir (VGCV)doses, advised by the drug exposure, indicated by the area under the concentration time curve (AUC), in renal transplant patients receiving oral VGCV or intravenous GCV for CMV prophylaxis or treatment. The initial doses will be calculated according to population pharmacokinetic model. Subsequent doses will be adjusted according to plasma GCV concentrations, using the Bayesian approach. This method of dose adjustments could lead to increase the percentage of patients achieving a therapeutic exposure.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4
Started Dec 2011
Typical duration for phase_4
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 19, 2011
CompletedFirst Posted
Study publicly available on registry
October 5, 2011
CompletedStudy Start
First participant enrolled
December 1, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2014
CompletedMarch 27, 2015
March 1, 2015
2.7 years
September 19, 2011
March 25, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Area under the concentration time curve (AUC)of ganciclovir in steady state
Values of AUC of ganciclovir achieved with each intervention, that is, ganciclovir and valganciclovir dose adjustment according to SPC(specific product characteristics) or PK (pharmacokinetic) model. In each intervention: after starting treatment, change in route of administration, change in renal clearance \>10 mL/min and end of treatment blood sampling for pharmacokinetic analysis will be performed in order to calculate AUC.
Change from baseline to the end of the treatment, with an expected average of treatment of 4 weeks in treatment and 90 days in prophylaxis patients.
Secondary Outcomes (5)
CMV viral load measured by quantitative polymerase chain reaction (PCR)
Change from baseline to day 30 of study entry
CMV viral load measured by quantitative polymerase chain reaction (PCR)
Change from baseline to day 60 of study entry
CMV viral load measured by quantitative polymerase chain reaction (PCR)
Change from baseline to day 90 of study entry
T-cell immune response against CMV infection measured by Enzyme-linked immunosorbent spot (ELISPOT)
Change from day 40 of treatment to day 20 after end of treatment.
T-cell immune response against CMV infection measured by Enzyme-linked immunosorbent spot (ELISPOT)
Change from baseline to day 20 of treatment
Study Arms (4)
1.A (Prophylaxis-SPC)
ACTIVE COMPARATORProphylaxis for CMV infection and Ganciclovir/ Valganciclovir doses according to summaries of product characteristics (SPC).
1.B (Prophylaxis- PK model)
EXPERIMENTALProphylaxis for CMV infection and Ganciclovir/Valganciclovir doses according to pharmacokinetic model.
2.A (Treatment-SPC)
ACTIVE COMPARATORTreatment for CMV infection/disease and Ganciclovir/ Valganciclovir doses according to summaries of product characteristics (SPC).
2.B (Treatment-PK model)
EXPERIMENTALTreatment for CMV infection/disease and Ganciclovir/Valganciclovir doses according to pharmacokinetic model
Interventions
Doses according to Summaries of Product Characteristics (SPC)
Doses according to population pharmacokinetic model
Eligibility Criteria
You may qualify if:
- Subjects must be 18 or older, weigh more than 34kg and may be of either sex and race.
- Subjects must be willing to give informed consent (IC) in writing and be able to do and follow the study. If a subject cannot give informed consent in writing , a legal representative could sign in his place.
- Women of childbearing potential should perform a pregnancy test at the time of entry and accept the use of a medically acceptable contraceptive method during the study.
You may not qualify if:
- Creatinine Clearance (CrCl )\<10 mL / min.
- Subjects may not have a history of type I hypersensitivity or idiosyncratic reactions to drugs ganciclovir/valganciclovir
- Pregnancy women.
- Women breast feeding
- Previous participation in another clinical trial sponsored by pharmaceutical industry, in which the promoter and the protocol set which should be the treatment for CMV.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Nephrology Department- Hospital Universitari Bellvtge
L'Hospitalet de Llobregat, Barcelona, 08028, Spain
Related Publications (3)
Vernooij RW, Michael M, Colombijn JM, Owers DS, Webster AC, Strippoli GF, Hodson EM. Pre-emptive treatment for cytomegalovirus viraemia to prevent cytomegalovirus disease in solid organ transplant recipients. Cochrane Database Syst Rev. 2025 Jan 14;1(1):CD005133. doi: 10.1002/14651858.CD005133.pub4.
PMID: 39807668DERIVEDVernooij RW, Michael M, Ladhani M, Webster AC, Strippoli GF, Craig JC, Hodson EM. Antiviral medications for preventing cytomegalovirus disease in solid organ transplant recipients. Cochrane Database Syst Rev. 2024 May 3;5(5):CD003774. doi: 10.1002/14651858.CD003774.pub5.
PMID: 38700045DERIVEDPadulles A, Colom H, Bestard O, Melilli E, Sabe N, Rigo R, Niubo J, Torras J, Llado L, Manito N, Caldes A, Cruzado JM, Grinyo JM, Lloberas N. Contribution of Population Pharmacokinetics to Dose Optimization of Ganciclovir-Valganciclovir in Solid-Organ Transplant Patients. Antimicrob Agents Chemother. 2016 Mar 25;60(4):1992-2002. doi: 10.1128/AAC.02130-15. Print 2016 Apr.
PMID: 26824942DERIVED
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Nuria Lloberas, Ph.D
Nephrology Department-Hospital Universitari Bellvitge
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Clinical Investigator of Nephrology Department
Study Record Dates
First Submitted
September 19, 2011
First Posted
October 5, 2011
Study Start
December 1, 2011
Primary Completion
August 1, 2014
Study Completion
August 1, 2014
Last Updated
March 27, 2015
Record last verified: 2015-03