Clinical Research Directory

Assessing the Incidence of Transplant Associated Thrombotic Microangiopathy (TA-TMA) in Adult Patients Undergoing Allogeneic Stem Cell Transplant (SCT)

The goal of this observational study is to learn about the incidence of Transplant Associated Thrombotich Microangiopathy (TA-TMA), which is a known but underreported complication of Allogeneic Stem Cell Transplant (SCT). The main question it aims to answer is: What is the incidence of TA-TMA in adults undergoing SCT? How does TA-TMA diagnosis impact survival and other outcomes? Patients undergoing SCT will be eligible for this study, which will consist of collection of biological samples and standard clinical follow up.

Using Transcriptional Assessment of Immune Response to Assess Immunosuppression After Liver Transplantation

To develop a prospective quantitative liver allograft monitoring protocol and retrospectively validate the use of Phenotypic personalized medicine (PPM) in immunosuppression dosing in liver transplant recipients.

Cardiovascular Outcomes and Risk Evaluation Among Recipients of Hematopoietic Stem Cell Transplantation

This is a prospective, multicenter observational study for recipients of hematopoietic stem cell transplantation. Patients who underwent hematopoietic stem cell transplantation at the participating centers will be entrolled in the study. The clinical characteristics, laboratory profiles, management measures, and clinical outcomes such as post-transplant cardiovascular events will be prospectively collected.

Critical Illness After Hematopoietic Cell Transplantation

This is a prospective, multicenter observational trial for patients who develop critical illness after hematopoietic cell transplantation. Patients who are admitted to the intensive care unit after undergoing hematopoietic cell transplantation at the participating medical centers will be enrolled in this study. The clinical characteristics, laboratory profiles, managements, and clinical outcomes will be prospectively collected.

"A Privacy-protecting Environment for Child Transplants Health Related and Genomic Data Integration in the European Reference Network"

Protect\_Child\_101 is an observational study to be performed in children that have undergone a liver or renal transplant. The aim of this study is to analyse small variations in the genetic material (DNA) of transplanted children. The investigators will also study a type of chemical 'marks' called methylations, which do not change the DNA itself, but can affect how it functions. These marks can influence how certain diseases develop or how the body responds to transplantation. Specifically, investigators seek to discover: * Whether there are genetic or epigenetic (methylation) alterations that may explain why some children develop serious diseases that require transplantation. * If these alterations can help us predict possible complications after transplantation, such as organ rejection, infections, organ failure, cancer development. Within this study, data from the child's medical history will be collected. The data to be collected are demographic data (gender, age, ethnicity), clinical data, personal and family history possibly related to his/her disease, course and evolution of the disease, and complementary and laboratory examinations collected from his/her clinical history. The only non-routine tests to be performed will be the genomic and methylomic tests. Nevertheless, these determinations will be performed on samples obtained during the child's routine care. No extra intervention is planned as part of this study. Samples and clinical data will be collected at different time points after transplantation. Schematically, collection is planned for months 0, 1, 3, 6, 12 and 24 post-transplant. In addition to these pre-established points, comprehensive data collection will be attempted when the child suffers a relevant clinical event, e.g. infection, treatment toxicity, organ rejection (post-transplant complication).

Plant-based Diet for Kidney Transplant Recipients

The goal of this clinical trial is to evaluate cardiometabolic and inflammatory parameters in kidney transplant recipients after transitioning to a plant-based diet (PBD). The main aims of the study are as follows: * To test the feasibility of transiting renal allograft recipients who are \> 3 months post-transplant to a PBD * To study the effect of a PBD on cardiometabolic parameters in kidney transplant recipients * To assess the effect of a PBD on peripheral blood Th17/Treg ratio and systemic inflammation in kidney transplant recipients Participants will be asked to: * Complete a 2-week investigator-designed PBD transition program * Follow a PBD for a minimum of 16 weeks * Consent for blood draws, urine samples, and fecal samples along with physical exams * Complete intermittent food frequency questionnaires and quality of life questionnaires * Periodically meet with investigators and other study participants Researchers will compare baseline measurements with future measurements for each participant.

NEgative prEssure Wound Therapy in Renal Transplant

This is a prospective study involving patients undergoing open renal transplant. Renal transplant recipients were randomly divided into two groups: the NPWT group, which received NPWT, and the Standard group, which received standard wound dressings.

GEnomic Medicine in Kidney Transplantation Study

Investigator led, prospective, observational cohort study to detect genomic features which can predict outcomes following kidney transplantation. 1. Determine non-HLA genomic mismatches between donor-recipient pairs which impact kidney allograft survival following transplantation 2. Derive polygenic risk scores on pre-transplant blood and/or kidney biopsy samples which predict kidney allograft dysfunction 3. Derive polygenic risk scores on post-transplant blood and/or kidney biopsy samples which predict kidney allograft dysfunction

Oral Pooled Fecal Microbiotherapy to Prevent Allogeneic Hematopoietic Cell Transplantation Complications (PHOEBUS Trial)

This randomized, placebo-controlled phase IIb study (PHOEBUS trial) aims to evaluate the activity of fecal microbiotherapy MaaT033 to improve survival through the prevention of transplant-related complications in eligible alloHCT patients

Comparison of Clinical Value in the Use of the Fascia Lata and Temporal Muscle Fascia in the Reconstruction of the Dura in the Sellar Region

Study Title: Assessing the Clinical Significance of Using Fascia Lata versus Temporalis Muscle Fascia for Skull Base Reconstruction in Sellar Region Objective: The primary objective of this study is to investigate and compare the effectiveness and safety of using fascia lata and temporal muscle fascia in the reconstruction of the skull base in the sellar region. Specifically, the study aims to determine and compare the level of donor site pain between the two groups using Visual Analogue Scales (VAS). The study also aims to identify the optimal method and materials for skull base reconstruction that result in the lowest frequency of complications, thereby reducing perioperative morbidity and enabling earlier rehabilitation of patients. Subjects and Methods: Study Design: Prospective randomized controlled trial. Population: The study will enroll 68 patients who have undergone endoscopic endonasal surgery for sellar region pathology. Patients will be divided into two groups: one group will receive skull base reconstruction using fascia lata, and the other group will receive reconstruction using temporal fascia. Interventions: In the fascia lata group, grafts will be harvested from the thigh, while in the temporal fascia group, grafts will be harvested from the temporal muscle area. Measurements: Primary Outcome: Donor site pain measured using Visual Analogue Scales (VAS) at various postoperative intervals (preoperative, and on the 1st, 2nd, and 3rd postoperative days, as well as 1 month and 3 months post-surgery). Secondary Outcomes: Incidence of postoperative complications such as meningitis, cerebrospinal fluid (CSF) leak, donor site infection, and other surgical complications. Expected Contribution: This research is expected to provide valuable insights into the comparative effectiveness and safety of using fascia lata versus temporal muscle fascia for skull base reconstruction. The findings could influence clinical decisions regarding the choice of graft material, potentially leading to reduced perioperative morbidity, faster patient rehabilitation, and improved overall outcomes for patients undergoing skull base surgeries.

Spatial Transcriptomics in Kidney Transplantation

The study is an investigator-led, prospective, longitudinal, observational cohort study. The central hypothesis for this study is that spatial data will reveal new insights to immune cell function and local interactions within the kidney tissue to better predict important clinical outcomes. Investigators aspire to establish a prospective, longitudinal cohort to improve the diagnosis and management of kidney transplant rejection using precision pathology. By utilising new spatial technologies, the investigators aim to: * Derive a spatially resolved transcriptomic signature of kidney transplant rejection subtypes * Derive accurate transcriptomic signatures aligned with key cell types within the transplant kidney * Develop refinements to histological kidney rejection diagnostic and scoring classification * Correlate of spatial and refined biopsy scoring features to clinically important outcomes

The Transplant Cohort of the German Center for Infection Research

Medical data and biological samples obtained from transplant patients are collected and managed across Germany with the help of the DZIF Transplant Cohort. The data and samples form the basis of scientific studies which investigate the connections between numerous factors influencing an organ's susceptibility to infection and organ function.