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An Observational Study to Assess the Effect of Calcineurin Inhibitors on Markers of Transplant Tolerance (OSCITT)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified September 2011 by University Medical Center Goettingen.
Recruitment status was:  Recruiting
Information provided by (Responsible Party):
Armin Goralczyk, University Medical Center Goettingen Identifier:
First received: February 8, 2010
Last updated: September 14, 2011
Last verified: September 2011
In experimental and clinical settings it has been shown that transplant tolerance is possible. It has been suggested that regulatory T cells play a beneficial role in the establishment of tolerance. Calcineurin inhibitors may inhibit development of regulatory T cells. However, the influence of calcineurin inhibitors on markers of transplant tolerance has not been studied in patients undergoing liver transplantation. Currently the investigators conduct a study to evaluate the safety and efficacy of a calcineurin inhibitor free immunosuppression in patients undergoing liver transplantation. In this study measurements of immune function and CD4+CD25high-Foxp3+-Il2/CD8+ status will also be performed. In parallel these measurements should be compared to a group of patients undergoing standard immunosuppression including calcineurin inhibitors.

Liver Transplantation

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: An Observational Study to Assess the Effect of Calcineurin Inhibitors on Markers of Transplant Tolerance

Resource links provided by NLM:

Further study details as provided by University Medical Center Goettingen:

Biospecimen Retention:   Samples Without DNA
Blood cells for fluorescence activated cell sorting and leukocytes for ImmuKnow/Cylex assay

Estimated Enrollment: 58
Study Start Date: February 2010
Estimated Study Completion Date: April 2012
Estimated Primary Completion Date: February 2012 (Final data collection date for primary outcome measure)
Standard immunosuppression
Patients receiving standard immunosuppression after liver transplantation including calcineurininhibitors
Immunosuppression without calcineurininhibitors
Patients receiving immunosuppression after liver transplantation not based on calcineurininhibitors


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients undergoing liver transplantation

Inclusion Criteria:

  • Patients undergoing primary liver transplantation
  • Patients of age 18 years and older
  • Female patients of childbearing potential willing to perform a highly effective contraception during the study and 12 weeks after conclusion of study participation

Exclusion Criteria:

  • Multiple organ graft recipients
  • Patients receiving ABO incompatible grafts
  • Patients with positive cross match
  • Pregnancy
  • Patients with a psychological, familial, sociologic or geographic condition potentially hampering compliance with the study protocol and follow-up schedule
  • Patients under guardianship (e.g. individuals who are not able to freely give their informed consent)
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01065584

University Medical Center Goettingen
Goettingen, Niedersachsen, Germany, 37099
Sponsors and Collaborators
University Medical Center Goettingen
Study Chair: Aiman Obed, Prof. Dr. University Medical Center Goettingen
Principal Investigator: Armin Goralczyk, Dr. University Medical Center Goettingen
  More Information

Responsible Party: Armin Goralczyk, Dr., University Medical Center Goettingen Identifier: NCT01065584     History of Changes
Other Study ID Numbers: OSCITT10 
Study First Received: February 8, 2010
Last Updated: September 14, 2011

Keywords provided by University Medical Center Goettingen:
liver transplantation
Patients undergoing liver transplantation

Additional relevant MeSH terms:
Calcineurin Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on February 20, 2017