Immunosuppression After Renal Transplantation
Conditions
Keywords
kidney transplantation, senior kidney transplant recipients, tacrolimus once daily, reduced immunosuppression, recipients >65 years, Senior
Brief summary
Study purpose To establish efficacy and safety of a reduced immunosuppressive therapy with tacrolimus once daily for senior (\>65 years of age) renal transplant recipients
Detailed description
Study outline Stable senior transplant recipients (\>65 years of age) participating in the European SENIOR transplant registry may enter the trial at month 3 post-transplant, if they fulfil all of the in- and none of the exclusion criteria. At this time patients will be randomized 1:1 either to continue Reference therapy: Tacrolimus once daily (Advagraf®) Mycophenolate (either MMF ≥1g/d or EC-MPS ≥720g/d) Steroids (≥5mg prednisolone or equivalent) or to Investigational therapy: Tacrolimus once daily (Advagraf®) Steroid stop at month 3 (tapering within 2 weeks) Mycophenolate stop at month 6
Interventions
OTHERReduced immunosuppression
Stop steroids at month 3 Stop mycophenolate at month 6 continue tacrolimus once daily (Advagraf, trough levels \> 5ng/ml) Stop mycophenolate at month 6
DRUGTacrolimus
Tacrolimus is used in both the acitve comparator arm and the interventional arm
DRUGmycophenolate
Mycophenolate is used in the acitve comparator arm for the whole study period; Mycophenolate is stopped at month 6 after Transplantation (month 3 of the study) in the experimental arm
DRUGSteroids
Steroids are used continually in the active comparator arm and are stopped at the beginning of the study (month 3 after Transplantation) as an Intervention in the experimental arm
Sponsors
Charite University, Berlin, Germany
European Renal Association - European Dialysis and Transplant Association
European Kidney Transplant Association (EKITA)
DESCARTES Working Group On Transplantation
Klemens Budde
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
No
Inclusion criteria
1. Males or females, aged ≥65 years and participating in the European SENIOR transplant registry 2. Patients who received a renal allograft 3 - 3.5 months prior to randomization. 3. Patient must have received primary or secondary renal allograft from a blood group compatible donor 4. Standard criteria donors (SCD), expanded criteria donors (ECD), donors after cardiac death (DCD) and living donors (LD) are eligible 5. Patients who are willing and able to participate in the study and from whom written informed consent has been obtained 6. Patients on continuous standard triple therapy with tacrolimus once daily (Advagraf, trough level ≥5ng/ml) in combination with mycophenolate (either ≥1.0g/day MMF or ≥720mg/d EC-MPS) and steroids (≥5mg prednisolone or equivalent) since transplantation 7. Stable graft function with serum creatinine ≤2.5 mg/dl. 8. Patients with low to standard immunological risk, who had a PRA over 20% and no known donor specific antibodies (DSA) at transplantation
Exclusion criteria
1. Patient with mental dysfunction or inability to comply with the study protocol 2. Patients, who - according to the investigator - require for medical reasons (e.g. previous rejections) continuous triple therapy or a different tacrolimus exposure 3. Multi-organ recipients (other solid organ (e.g. pancreas) or bone marrow) 4. Blood group ABO-incompatible allografts 5. Patients who suffered from severe T-cell mediated rejection (over Banff II acute rejection), recurrent acute rejection (\>1 episode), or steroid resistant rejection post-transplant 6. History of antibody-mediated rejection (acute or chronic) 7. History of rejection 2 months prior to inclusion 8. Documented presence of donor specific antibodies (DSA) according to local lab results at baseline 9. Panel reactive antibody (PRA) \>20% prior to transplantation, measured according to local standard 10. Patients receiving or having received Sirolimus, Everolimus, Azathioprine, Belatacept or Cyclophosphamide within 3 months prior to enrolment 11. Patients having received any other induction therapy than Basiliximab (e.g. depleting polyclonal antithymocyte antibodies (ATG), OKT3, Alemtuzumab) 12. Patients with proteinuria \>1.0 g/day (or \>1.0 g/g creatinine) at screening or having experienced nephrotic syndrome due to recurrence of focal segmental glomerulosclerosis (FSGS) 13. History of alcohol or drug abuse with less than 6 months of sobriety 14. Patient with a known hereditary immunodeficiency 15. Patient with active malignancy posttransplant with the exception of local, non-invasive, fully excised, cutaneous basal cell carcinoma, cutaneous squamous cell carcinoma, or cervical carcinoma in situ 16. Patients with clinically symptomatic congestive heart failure or symptomatic coronary artery disease 17. Patients with documented (either by serology and/or nuclear acid testing (NAT) clinically active infections (e.g. with a known Hepatitis B, Hepatitis C, HIV, CMV or BK virus infection) 18. Participation in any other investigational clinical trial 3 months before participation in this study, except the SENIOR transplant registry 19. Patients with leukopenia (\<2500 cells/nl) or neutropenia (\<1500 cells/nl) 20. Patients with thrombocytopenia (\<100 cells/nl) 21. Patients with liver transaminases or bilirubin values \> 3x normal values 22. Any significant diseases or clinically significant findings, including psychiatric and behavioural problems, medical history and/or physical examination findings that would in the opinion of the investigator preclude the patient from participating in the study. 23. Patients who have been institutionalized by official or court order
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Combined efficacy endpoint (BPAR, graft loss and death) | between randomization and month 12 posttransplant (month 9 of the study) | BPAR (biopsy proven acute rejection) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of severe infections | between randomization and month 12 posttransplant | Numbers, type of infections will be registered |
| Number of opportunistic infections | between randomization and month 12 posttransplant | CMV infections, BKV infections; numbers, type of infection will be registered |
| Number of hospitalisations and days of hospitalisation | between randomization and month 12 posttransplant | number of episodes, days in hospital |
| Graft function by calculated glomarular filtration rate calculated by CKD-EPI | between randomization and month 12 posttransplant | Comparison of estimated glomerular filtration rate calculated by CKD-EPI formula |
| Number of occurrences and types of donor specific antibodies (DSA) | between randomization and month 12 posttransplant | surveillance of detection of new donor specific antibodies by Luminex assay |
Contacts
Primary ContactLukas J Lehner, MD
Backup ContactKlemens Budde, MD
Outcome results
None listed