Trial record 14 of 42 for:
Recruiting, Not yet recruiting, Available Studies | "Organ Transplantation"
Biomarkers in Transplant Recipients
This study is currently recruiting participants.
Verified March 2017 by Rakesh Sindhi, University of Pittsburgh
Information provided by (Responsible Party):
Rakesh Sindhi, University of Pittsburgh
First received: June 29, 2010
Last updated: March 31, 2017
Last verified: March 2017
The objective of this study is to evaluate whether certain proteins, expressed in biological tissues can indict a better understanding of the effect of drugs that are used to treat rejection, and of processes leading to rejection and rejection-free outcomes.
Solid Organ Transplantation
Bone Marrow Transplantation
||Observational Model: Other
Time Perspective: Prospective
||Study of Biomarkers in Solid Organ and Bone Marrow Transplant Recipients to Better Treat Rejection
Primary Outcome Measures:
Biospecimen Retention: Samples With DNA
Secondary Outcome Measures:
- Thresholds of immunosuppression [ Time Frame: Yearly post transplantation ]
Blood levels and doses of the various immunosuppressants at one year. For example, Tacrolimus is measured as nanograms/ml in whole blood, Mycophenolate mofetil is measured in doses of mg/day, or as blood levels in micrograms/ml, steroids doses are measured in mg/day, Sirolimus is measured in doses of mg/day, or as blood levels in nanograms/ml in whole blood.
blood, saliva, intestinal and liver biospy samples, urine, stool
| Estimated Enrollment:
| Study Start Date:
| Estimated Study Completion Date:
| Estimated Primary Completion Date:
||March 2020 (Final data collection date for primary outcome measure)
All transplant recipients receive periodic monitoring of drug levels and laboratory tests to assess adequacy of immunosuppression and allograft function. These are performed when the recipient is admitted to the hospital after transplantation or for a complication such as acute rejection or toxicity, or when the recipient is an outpatient.
- Blood samples: Participants may be asked to provide research blood specimens during regular clinical tests, and may collect up to 15 milliliters of blood as many as 7 times within the first year of transplant, and then less often thereafter. The total volume collected will take in account the patient's height, weight and age at the time of the collection. However, if for any reason participant is unable to provide a sample during regular clinical test it may be collected at another time. Participants will be asked to provide these samples indefinitely. This will allow longitudinal assessment of the stability of biomarker expression as a reflection of clinical drug concentrations in repeated measurements.
- Saliva collection: Up to 5 ml of the subject's saliva will be collected no more than four times, if the previous sample does not provide adequate information. Samples will be collected in self-collection container at the time of consent or as early as possible after consents are obtained, and will be stored at room temperature in the Pediatric Transplantation Laboratory, 3344 Forbes Ave. In recipients where both are available, the genotyping results as DNA from saliva will be compared between paired blood samples. Henceforth, saliva collection will only be offered to participants who cannot donate blood specimens for genotyping. Salivary sampling is considered an acceptable alternative standard for whole blood genotyping. A saliva sample will be collected only if the patient or the patient's parent or guardian prefers this option over blood sampling.
- Collection of urine, feces, and bile: five mls of any body fluid will be collected in sterile urine cups for application of proteomics technologies. Collections may be repeated up to four times, if the first specimen provides suboptimal information.
- Collection of remaining allograft standard of care biopsy specimens, and tissue from explants: Any piece of allograft biopsy deemed residual by the pathologist will be subjected to gene array testing. This will occur when participant is scheduled for their standard of care biopsy, or while in surgery. Genetic material extracted from the smallest tissue can be amplified using several approaches.
- Measurements: Biomarker expression will be evaluated after mitogen and antigen stimulation of peripheral blood mononuclear cells. (1-3). Briefly, peripheral blood mononuclear cells (PBMC) are extracted from whole blood by Ficoll gradient separation, Thereafter, either mitogens such as phytohemaglutinin, pokeweed mitogen, or phorbol-myristic acid-ionomycin, or viral and major histocompatibility complex (MHC) peptide antigens, or intact alloantigenic cells will be used to stimulate recipient PBMC. Cellular responses that can be measured include but are not limited to expressed pro-inflammatory or anti-inflammatory markers, cytokines, proliferation, cytotoxicity, and apoptosis.
|Ages Eligible for Study:
||Child, Adult, Senior
|Sexes Eligible for Study:
|Accepts Healthy Volunteers:
Individuals who are listed and or recipients of solid organ or bone marrow transplantation.
- Recipients of abdominal, thoracic and bone marrow allografts that are receiving inpatient and outpatient follow-up with routine laboratory tests at the University of Pittsburgh Medical Center.
- All Ages
- Subject or parents are able to read and understand the informed consent
- Subjects and/or their parents who are unable to read and understand informed consent.
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01163578
University of Pittsburgh
||Rakesh Sindhi, MD
||University of Pittsburgh
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
||Rakesh Sindhi, Professor of Surgery, University of Pittsburgh
History of Changes
|Other Study ID Numbers:
|Study First Received:
||June 29, 2010
||March 31, 2017
Keywords provided by Rakesh Sindhi, University of Pittsburgh:
ClinicalTrials.gov processed this record on June 23, 2017