A Relative Bioavailability Study of Valcyte (Valganciclovir) in Lung Transplant Recipients With or Without Cystic Fibrosis.
Relative Bioavailability Study of Ganciclovir From the Pro-drug, Valganciclovir, in Lung Transplant Recipients With or Without Cystic Fibrosis
1 other identifier
interventional
31
1 country
5
Brief Summary
This study will assess the relative bioavailability of ganciclovir from the pro-drug valganciclovir in lung transplant recipients with or without cystic fibrosis. Each patient will receive 900mg valganciclovir daily for the period specified at their center, starting as soon as possible after the transplant. Pharmacokinetic assessments will be made provided that steady-state kinetics of ganciclovir and immunosuppressive drugs have been obtained (\>=4 days of drug therapy). Blood samples for pharmacokinetic analysis will be taken up to 24h post-dose on one occasion. The anticipated time on study treatment is 3-12 months, and the target sample size is \<100 individuals.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Dec 2004
5 active sites
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
Study Start
First participant enrolled
December 1, 2004
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2006
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2006
CompletedFirst Submitted
Initial submission to the registry
September 15, 2006
CompletedFirst Posted
Study publicly available on registry
September 18, 2006
CompletedResults Posted
Study results publicly available
December 31, 2015
CompletedDecember 31, 2015
November 1, 2015
1.5 years
September 15, 2006
November 26, 2015
November 26, 2015
Conditions
Outcome Measures
Primary Outcomes (2)
Area Under The Observed Plasma Concentration-Time Curve Between Dosing Intervals AUC(0-tau)
The area under the plasma concentration-time curve from time zero to end of dosing interval (AUC \[0-tau\]) is a measure of the plasma ganciclovir concentration from time zero to end of dosing interval. It was computed using the linear trapezoidal rule. The pharmacokinetic parameters of valganciclovir were measured in plasma of all participants following a single oral dose valganciclovir at 900 mg on Day 1.
Pre-dose, 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0, 12 and 24 hours post-dose
Maximum Observed Plasma Concentration (Cmax) of Ganciclovir
The Cmax is defined as maximum observed Ganciclovir concentration. Cmax of valganciclovir were measured in plasma of all participants following a single tablet dose Valganciclovir at 900 mg at start of treatment on Day 1.
Pre-dose, 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0, 12 and 24 hours post-dose
Secondary Outcomes (3)
Time to Maximum Observed Plasma Concentration (Tmax) of Ganciclovir
Pre-dose, 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0, 12 and 24 hours post-dose
Apparent Elimination Rate (Kelim) of Ganciclovir
Pre-dose, 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0, 12 and 24 hours post-dose
Plasma Half-Life (T1/2) of Ganciclovir
Pre-dose, 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0, 12 and 24 hours post-dose
Study Arms (1)
1
EXPERIMENTALInterventions
Eligibility Criteria
You may qualify if:
- male or female patients, \>=14 years of age;
- first lung or heart-lung transplant recipient;
- at risk of CMV disease (D+R-,D+R+ or D-R+);
- estimated creatinine clearance \>=60mL/min;
- stable immunosuppressive and 900mg Valcyte dosing regimens (\>=4 days) prior to pharmacokinetic assessments.
You may not qualify if:
- history of any adverse reaction to acyclovir, valacyclovir, ganciclovir or valganciclovir;
- evidence of graft rejection;
- patient has received anti-CMV prophylaxis with a treatment other than cytogam, ganciclovir or valganciclovir between transplant and screening.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (5)
Unknown Facility
Los Angeles, California, 90033, United States
Unknown Facility
Denver, Colorado, 80262, United States
Unknown Facility
Durham, North Carolina, 27710, United States
Unknown Facility
Cleveland, Ohio, 44195, United States
Unknown Facility
Pittsburgh, Pennsylvania, 15213, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Roche Trial Information Hotline
- Organization
- F. Hoffmann-La Roche AG
Study Officials
- STUDY DIRECTOR
Clinical Trials
Hoffmann-La Roche
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 15, 2006
First Posted
September 18, 2006
Study Start
December 1, 2004
Primary Completion
June 1, 2006
Study Completion
June 1, 2006
Last Updated
December 31, 2015
Results First Posted
December 31, 2015
Record last verified: 2015-11