Pharmacokinetics of Immunosuppressive Drugs in Heart Transplant Patients (PIGREC)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00812786
Recruitment Status : Completed
First Posted : December 22, 2008
Last Update Posted : August 26, 2013
Information provided by (Responsible Party):
University Hospital, Limoges

December 19, 2008
December 22, 2008
August 26, 2013
July 2007
May 2011   (Final data collection date for primary outcome measure)
Estimation of the pharmacokinetic properties and parameters of the immunosuppressive drugs.
Same as current
Complete list of historical versions of study NCT00812786 on Archive Site
  • Investigation of relationships between physiological and pathological characteristics and individual pharmacokinetic parameters.
  • Characterisation of the exposure-clinical effects relationships for the difference immunosuppressive drugs.
Same as current
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Pharmacokinetics of Immunosuppressive Drugs in Heart Transplant Patients
Multicentre, Open Study for the Setting up of Population Pharmacokinetic Models and Bayesian Estimators for Individual Dose Adjustment of Immunosuppressive Drugs (Cyclosporine, Tacrolimus, Mycophenolate Mofetil, Everolimus) During the First Year Post-grafting in Adult Heart Transplant Recipients.

The main objective is to develop pharmacokinetic methods for individual dose adjustment of the global immunosuppressive treatment (cyclosporine, tacrolimus, mycophenolate mofetil and everolimus, taking into account the pharmacokinetic interactions), in order to optimise the efficiency and reduce the potentially severe sides effects of these drugs.

Forty five heart-transplant patients are to be included in this phase IV study to obtain a minimum of 10 patients treated with tacrolimus-mycophenolate, 10 with cyclosporine-mycophenolate and 20 with everolimus-cyclosporine.

Ten to 11 blood samples will be collected within the 8 to 12 hours post-dose in each patient and the immunosuppressive drug concentrations will be measured by LC-MS/MS.

The pharmacokinetic models and Bayesian estimators thus developed will provide tools for individual dose adjustment of immunosuppressive drugs simultaneously, at different post-transplant periods, using the area under the concentration-time curve (AUC) estimated using a limited number of time-points (2 or 3).

For each heart transplant patient, 10 to 11 blood samples (5 mL each) will be collected following dosing of he immunosuppressive drugs (at T0, T20', T40', T60', T90', T2h, T3h, T4h, T6h, T8h and T10h + T12h for inpatients), at several post-transplant periods (7 to 15 days, 1 month, 3 month and 1 year after transplantation). One more blood sample will be taken at D7-14 for pharmacogenetic analyses.
Phase 4
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Heart Transplant
Drug: cyclosporine, tacrolimus, mycophenolate mofetil and everolimus (immunosuppressive drugs)
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
May 2012
May 2011   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Patient having received of a heart transplant (exclusively) less than 2 weeks before the inclusion date or planned to receive it within days following inclusion.
  • Patient at least 18 years old, male or female.
  • Patient treated with one of the following combination : cyclosporine-mycophenolate, tacrolimus-mycophenolate or everolimus- "low-dose" cyclosporine for at least 3 days, and at least 24 hours by the oral route at the time of the first sampling day (between 7 and 15 days post-transplant).
  • Patient included or not in another study, in particular in a therapeutic trial (e.g. comparison between drug combinations).
  • Patient having given written informed consent for his/her participation to the trial.

Exclusion Criteria:

  • Patients in disagreement with the present trial.
  • Patients suffering from neuro-psychic problems, making them unable to well-understand the protocol or to give a reliable consent.
  • Patients with previous heart or any other solid organ transplantation.
  • Patients with double transplantation (heart-lung, heart-kidney or heart-liver)
  • Patients still intubated and ventilated 15 days post-transplant.
  • Patients with anaemia between Day 7 and 15, as characterized by hematocrit < 30% or haemoglobin < 9 g/dl.
Sexes Eligible for Study: All
18 Years to 80 Years   (Adult, Older Adult)
Contact information is only displayed when the study is recruiting subjects
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University Hospital, Limoges
University Hospital, Limoges
Not Provided
Principal Investigator: Pierre MARQUET, MD University Hospital, Limoges
University Hospital, Limoges
December 2008

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP