- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00028171
Pharmacokinetics of Tacrolimus in Kidney Transplant Recipients: Once Daily Versus Twice Daily Dosing
Tacrolimus is a medication given to transplant patients to help prevent rejection. The purpose of this study is to see if tacrolimus can be taken once a day instead of twice a day in kidney transplant patients.
Transplant patients are required to take several medications to prevent rejection and to treat complications after their transplantation. Because of the complicated dosing schedule, it can be difficult for patients to follow their medication schedule. Taking fewer medications less frequently may help transplant patients to better manage their drug therapy.
Tacrolimus is better absorbed in the body if it is taken in the morning than if it is taken in the evening. This suggests that tacrolimus can be taken once every morning instead of twice daily in order to produce appropriate drug exposure to prevent organ rejection without increased side effects.
Study Overview
Study Type
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Missouri
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St. Louis, Missouri, United States, 63110
- Washington University/Barnes Jewish Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria: 1) Kidney transplant recipients (18 years or older) at Washington University/Barnes Hospital taking tacrolimus-based immunosuppression; 2) Stable kidney transplant recipients (>6 months post-transplantation, serum creatinine < 2 ml/dL, no history of rejection); 3) Stable immunosuppression (therapeutic tacrolimus concentrations, no change in tacrolimus dose within one month prior to the study); 4) Subjects must agree to abstain from alcohol and caffeine for 48 hours prior to the pharmacokinetics studies.
Exclusion Criteria: 1) Pregnant women or nursing mothers; 2) Patients unwilling or unable to comply with the protocol; 3) Significant liver impairment (AST or ALT > 2 x upper limit of normal, or total bilirubin > upper limit of normal); 4) Anemia: Hematocrit < 30%; 5) Use of concomitant P450 3A4/p-glycoprotein inducers or inhibitors; 6) Current smoking; 7) Patients with diabetes mellitus
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Masking: None (Open Label)
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start
Primary Completion
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NCRR-M01RR00036-0824
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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