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This study investigated whether measuring a donor-specific T-cell response could allow reduction of immunosuppressive (immune-suppressing) medication in people receiving their first kidney (renal) transplant. Patients received Tacrolimus, mycophenolate mofetil (MMF), and steroids, and the study enrolled adults aged 18 and older receiving a first kidney transplant. It was conducted as a non-phase study and has been completed.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
Inclusion Criteria: 1. Men and women, age ≥18 years. 2. Subject must be a recipient of a first renal transplant from a deceased or living donor. 3. Subject must have a current documented PRA (Panel of reactive antibodies) \<20% and no detectable anti-class I and II HLA (human leukocyte Antigens) antibodies by solid phase assay (Luminex®). 4. Subject is willing to provide signed written informed consent. 5. Women of Childbearing Potential (WOCBP) must be using a highly effective method of contraception (Pearl-Index \< 1) to avoid pregnancy throughout the study in such a manner that the risk of pregnancy is minimized. WOCBP include any female who has experienced menarche and who has not undergone successful surgical sterilization (hysterectomy, bilateral tubal ligation, or bilateral oophorectomy) or is not postmenopausal \[defined as amenorrhea ≥ 12 consecutive months; or women on hormone replacement therapy (HRT) with documented serum follicle stimulating hormone (FSH) level \> 35 mIU/mL\]. WOCBP must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of HCG (Human chorionic gonadotropin)) within 72 hours prior to the start of clinical trial. Exclusion Criteria: 1. Subjects undergoing renal transplant with a current documented PRA \>20% and/or detectable anti-class I and II HLA antibodies by solid phase assay (Luminex®). 2. CDC (complement dependent cytotoxicity) positive cross match. 3. Subjects receiving an allograft from a donor older than 65 years with elevated creatinine levels and/or treated diabetes. 4. Cold ischemia time (CIT) higher than 24h. 5. Subjects with a prior solid organ transplant (SOT), including renal re-transplantation, or receiving a concurrent SOT. 6. Patients previously treated with daclizumab or basiliximab. 7. Subjects with underlying renal disease of: * Primary focal segmental glomerulosclerosis. * Type I or II membranoproliferative glomerulonephritis * Atypical Haemolytic uremic syndrome (HUS) / thrombotic thrombocytopenic purpura syndrome. 8. Subject with Hepatitis B chronic infection and/or active infection by Hepatitis C virus (positive PCR (polymerase chain reaction result) at the moment of transplant. 9. Subjects with known human immunodeficiency virus (HIV) infection. 10. Patients with active systemic infection that requires the continued use of antibiotics. 11. Patients with neoplasia except localized skin cancer receiving appropriate treatment. 12. Patients with severe anemia (hemoglobin \< 6g/dl), leucopenia (WBC (White blood cells) \<2500/mm3), thrombocytopenia (platelets \<80.000/mm3). 13. Hemodynamically instable patients even if their hemoglobin level counts \> 6 g/dl. 14. Patients with intestinal pathology or severe diarrhoea that can hinder absorption according to medical criteria. 15. Subjects with a known hypersensibility to any of the drugs used in this protocol. 16. Subjects who have used any investigational drug within 30 days prior to enrolment in this clinical trial. 17. WOCBP who are unwilling or unable to use an acceptable method to avoid pregnancy for the entire study period, women who are pregnant or breastfeeding or women with a positive pregnancy test on enrolment. 18. Subjects who are legally detained in an official institution