Kidney Transplantation in Patients With Cystinosis
Completed
Conditions studied: Cystinosis
In brief
This study will test the effectiveness of a combination of anti-rejection medicines in preventing complications typically seen in cystinosis patients undergoing kidney transplants. Cystinosis is a rare disease affecting children that causes growth retardation and kidney failure. Kidney transplant is the standard treatment for kidney failure in these patients, followed by immunosuppression to prevent organ rejection. The standard drug regimen for immunosuppression includes steroids, which can lead to other serious complications. This study will look at combination therapy that does not include steroids. Patients 7 years of age and older with cystinosis who are candidates for a kidney transplant at the National Institutes of Health Clinical Center may be eligible for this 5-year study. Candidates will be screened with a medical history, physical examination, and blood tests. Participants will undergo the following tests and procedures: 1. Kidney transplant: Patients undergo kidney transplant surgery under general anesthesia. 2. Central line placement: A large intravenous catheter (plastic tube, or IV line) is placed in a vein in the chest or neck under local anesthesia before the transplant surgery. The line remains in place for some time during the hospitalization to administer immunosuppressive medications, antibiotics, and blood, if needed. The line is also used to collect blood samples. 3. Leukapheresis: This procedure for collecting white blood cells is done before the transplant. The cells are studied to evaluate the patient's immune system. Whole blood is withdrawn through a catheter in an arm vein or through the central line and directed into a machine that separates the blood components by spinning. The white cells are removed and the red cells and plasma are returned to the body. 4. Immunosuppressive medication following transplantation * Adults receive thymoglobulin at the time of the transplant and for 3 days after surgery; mycophenolate mofetil daily after the transplant; tacrolimus twice a day once the kidney is working well; and sirolimus daily. * Children receive daclizumab the day of the transplant, day 4 after surgery, and at weeks 2, 4, 6, 8, 11, 15, 19, and 23, and mycophenolate mofetil daily after the transplant. 5. Follow-up visits: After discharge from the hospital, patients return to the Clinical Center for follow-up at 6 months, at 1 year, and then yearly for 5 years. A physical examination is done the first four visits, and blood and urine samples are collected at every visit. Kidney biopsies (removal of a small amount of kidney tissue through a thin needle) are done at 6 months, 1, 3, and 5 years after the transplant. The biopsied tissue is examined to evaluate how well the kidney is responding to the immunosuppression medicines, to determine whether more or less medication is needed, and to evaluate how the patient is responding to the donor kidney. 6. Routine laboratory tests, coordinated by the patient's local physician, are done 2 to 3 times a week for the first 2 to 3 months after transplantation, then weekly for several more months, and at least monthly for life.
Key facts
- Study ID
- NCT00074516
- Run by
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- People needed
- 11
- Starts
- 2003-12-10
- Expected to finish
- 2014-06-11
- Last updated by the study team
- 2017-10-06
Who can join
Age: 7 and older. Sex: any. Healthy volunteers: not accepted.
You may not qualify if…
- Inability or unwillingness to comply with protocol, or to provide informed consent. Criteria include a history of noncompliance, circumstances where compliance with protocol requirements is not feasible due to living conditions, travel restrictions, lack of access to urgent medical services, or access to anti-rejection drugs once the study is completed.
- Any active malignancy or history of a hematogenous malignancy or lymphoma. Patients with primary, cutaneous basal cell or squamous cell cancers may be enrolled providing the lesions are appropriately treated prior to transplantation.
- Significant coagulopathy or requirement for anticoagulation therapy that would contraindicate allograft biopsy.
- Any known immunodeficiency syndrome.
- Peak panel reactive antibody greater than 20% or historically positive crossmatch due to HLA-specific antibodies.
- Prior kidney graft survival less than 3 years or positive T or B cell crossmatch in patients receiving repeat kidney allograft.
- Historical or current positive T cell cross match between donor and recipient.
- Pregnancy or unwillingness to practice an approved method of birth control. Acceptable methods of birth control may include barrier methods, oral contraceptives, Norplant, Depo-Provera, or partner sterility.
Where it is running
- National Institutes of Health Clinical Center, 9000 Rockville Pike — Bethesda, Maryland, United States
Full record on ClinicalTrials.gov
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