Biomarkers in Transplant Recipients

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. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT01163578
Recruitment Status : Recruiting
First Posted : July 15, 2010
Last Update Posted : April 4, 2017
Information provided by (Responsible Party):
Rakesh Sindhi, University of Pittsburgh

June 29, 2010
July 15, 2010
April 4, 2017
March 2005
March 2020   (Final data collection date for primary outcome measure)
Rejection [ Time Frame: 90 day post transplantation (clinical severity) ]
Biopsy-proven acute cellular rejection
Rejection or Graft vs. Host Disease [ Time Frame: 90 day post transplantation (clinical severity) ]
Complete list of historical versions of study NCT01163578 on Archive Site
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.
  • Thresholds of immunosuppression associated with opportunistic infections and malignancies due to immunosuppression, and blood levels and doses of the various immunosuppressants [ Time Frame: Yearly post transplantation ]
  • Various types of diseases leading to organ and bone marrow transplantation [ Time Frame: Day 0 ]
  • Ischemia-reperfusion injury associated with organ preservation prior to transplantation [ Time Frame: Within 8 hours of engraftment ]
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Biomarkers in Transplant Recipients
Study of Biomarkers in Solid Organ and Bone Marrow Transplant Recipients to Better Treat Rejection
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.

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.

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
Observational Model: Other
Time Perspective: Prospective
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Retention:   Samples With DNA
blood, saliva, intestinal and liver biospy samples, urine, stool
Non-Probability Sample
Individuals who are listed and or recipients of solid organ or bone marrow transplantation.
  • Solid Organ Transplantation
  • Bone Marrow Transplantation
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Same as current
March 2020
March 2020   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • 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

Exclusion Criteria:

  • Subjects and/or their parents who are unable to read and understand informed consent.
Sexes Eligible for Study: All
Child, Adult, Older Adult
Contact: Catherine Scott, BS 412-692-7673
Contact: Christine Trautz, BSN 412-692-8472
United States
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Rakesh Sindhi, University of Pittsburgh
University of Pittsburgh
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Principal Investigator: Rakesh Sindhi, MD University of Pittsburgh
University of Pittsburgh
March 2017