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CompletedNCT06080490Updated Jun 5, 2025

Tacrolimus Blood Concentration and Transplant-related Outcomes in Pediatric HSCT Recipients

An observational study in Graft Vs Host Disease, Transplant Failure and Stem Cell Transplant Complications, sponsored by University of Pisa. Completed at 1 site in Italy. Open to participants aged 1 Month to 18 Years. Per ClinicalTrials.gov, last updated 2025-06-05.

Sponsored by University of Pisa · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
125
Ages
1 Month to 18 Years
Sex
All
01

Study summary

The goal of this retrospective observational study is to investigate any possible association among tacrolimus (TAC) blood concentrations, clinical efficacy and tolerability.

Therefore, the main questions it aims to answer are:

  1. to clarify which variables, how and to what extent influence daily TAC blood concentrations in pediatric allo-hematopoietic stem cell transplantation (HSCT) recipients;
  2. to investigate the incidence of graft-versus-host disease (GVHD) and graft failure according to TAC exposure.

Pediatric patients administered TAC to prevent GVHD after an allogeneic bone marrow transplantation.

Read the detailed description

Patients undergoing allo-HSCT will be recruited at IRCC Burlo Garofolo, collecting demographic and clinical characteristics from electronic medical records in a retrospective manner: age, sex, primary disease, donor type and stem cell source, body weight (BW), white blood cell (WBC) count, platelet count, red blood cell (RBC) counts, hemoglobin (HGB) and hematocrit (HCT) levels, red cell concentrate (RCC) transfusions. Other clinical laboratory data (i.e., liver and kidney function) will be included, as well as concomitant drugs administered to patients after allo-HSCT (i.e, mycophenolate mofetil, steroids, pantoprazole, voriconazole, methotrexate). Data will be collected, validated, and presented according to Good Clinical Practice (GCP) principles to support the statistical analyses and subsequent reporting. Once selected according to predefined inclusion requirements, data will be collected anonymously; an identification code will be assigned to each case. As per GCP, all collected information will be recorded, handled, and stored in a way that allows its accurate reporting, interpretation, and verification with user access restriction, and data will be retrievable by designated personnel only.

Because of the retrospective nature of the present research protocol, all eligible patients will be included in the study population only if their medical and laboratory records will be complete.

Statistical analyses (for descriptive and comparative aims) will be performed stratifying patients by body weight, age, gender, and source of stem cells. Univariate and multivariate tests will be used, together with Kaplan-Meyer tes, Cox proportional hazard model and ROC curve analysis.

02

Conditions studied

  • Graft Vs Host Disease
  • Transplant Failure
  • Stem Cell Transplant Complications

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Keywords

  • HSCT
  • Tacrolimus
  • GVHD
  • Pediatric patients
03

In context

Graft vs Host Disease

806 studies on the registry are indexed under Graft vs Host Disease; 138 are open to participants now.

This study's enrollment of 125 is above the median of 94 across 102 observational studies indexed under Graft vs Host Disease.

Browse Graft vs Host Disease studies →

Lead sponsor

University of Pisa is the lead sponsor of 111 studies on the registry; 29 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Month to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients who underwent allo-HSCT procedure between January 2011and December 2022 at IRCC Burlo Garofolo

Inclusion criteria

  • Age of the patients between 0 and 18 years (pediatric)
  • Patients undergoing allogeneic bone marrow transplantation
  • Patients' GVHD prophylaxis with tacrolimus
  • Signed informed consent

Exclusion criteria

Exclusion Criteria:

  • Patients undergoing autologous bone marrow transplantation
  • Patients not undergoing GVHD prophylaxis
  • Patients undergoing cyclosporin prophylaxis
  • Incomplete pharmacokinetic/pharmacodynamic data
  • Lack of any informed consent
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
125 participants (actual)
Patient registry
No

Interventions

  • DrugTAC C/D ratio

    Pharmacokinetics of TAC according to possible influencing factors

    Also known as: Tacrolimus

06

What researchers measure

Primary outcomes

  1. TAC pharmacokinetics

    Evaluation of factors affecting TAC blood concentration/dose (C/D) ratio

    Time frame: 0-30 days

Secondary outcomes

  1. GVHD

    Evaluation of GVHD in patients according to TAC C/D

    Time frame: 0-180 days

  2. Graft failure

    Evaluation of graft failure in patients according to TAC C/D

    Time frame: 0-180 days

07

Study locations

1 site
  • IRCCS Burlo Garofolo
    Trieste, 34137, Italy
08

References and documents

Publications

  • Braidotti S, Curci D, Maestro A, Zanon D, Maximova N, Di Paolo A. Effect of early post-hematopoietic stem cell transplant tacrolimus concentration on transplant outcomes in pediatric recipients: One facility's ten-year experience of immunosuppression with tacrolimus. Int Immunopharmacol. 2024 Sep 10;138:112636. doi: 10.1016/j.intimp.2024.112636. Epub 2024 Jul 10. PubMed 38991629 ↗

Individual participant data

Plan to share: Undecided — IPD sharing plan is under evaluation by local IRB

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 5, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06080490
Lead sponsor
University of Pisa
Responsible party
Antonello Di Paolo, M.D., Ph.D. (Professor of Pharmacology, University of Pisa) — Principal investigator
First posted
Oct 12, 2023
Start date
Sep 29, 2023
Primary completion
Sep 29, 2024
Completion
Dec 31, 2024
Last update
Jun 5, 2025

Study contacts

Natalia Maximova, MD
principal investigator · IRCCS Burlo Garofolo - Trieste - ITALY

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.

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