Table of contents
- Overview of the Histidine trials
- Who the studies are for
- Trial phases and study design
- What the studies measure
- Key trial details
- Study status and enrollment
Overview of the Histidine trials
The trial data show studies that investigate Histidine in the setting of organ preservation and surgery support, mainly through comparison with Custodiol or Custodiol-N solutions.[1][2][3][4]
These studies are not about general use of Histidine as a medicine in everyday care. They are focused on whether the study solutions help protect organs or improve recovery during and after major operations.[1][2][4]
Who the studies are for
The target groups include patients who will undergo kidney, liver, or kidney-pancreas transplantation.[1]
One study is for children undergoing heart transplantation, and another is for children with congenital heart malformation who need cardiac surgery.[2][3]
Other studies focus on adults after oesophagectomy and major emergency abdominal surgery.[4][5]
Trial phases and study design
The data include both Phase 2 and Phase 3 studies.[1][2][3][4][5]
Phase 2 studies are smaller and usually look closely at safety, while Phase 3 studies are larger and compare study treatments in more people.[2][3][1][4][5]
Several studies are described as prospective, randomized, single blind, and multicenter, which means they follow patients forward in time, assign treatment by chance, hide the treatment from one side of the study, and run at more than one hospital.[1][2][3]
What the studies measure
The kidney and liver transplant study measures delayed graft function for kidney transplants and the area under the curve of GPT (ALT) for liver transplants over the first 7 days after implantation.[1]
The pediatric heart transplant study measures safety by continuous adverse event reporting for up to 3 months.[2]
The congenital heart surgery study also focuses on safety, with continuous adverse event reporting up to 30 days after surgery, and on myocardial protection, measured by CK-MB levels until day 7 after surgery.[3]
The liver transplantation study measures GPT (ALT) over 7 days after transplantation and compares the area under the curve between the two study groups.[4]
The oesophagectomy study looks at changes in muscle size on CT scan from before surgery to 10 days after surgery.[5]
The emergency abdominal surgery study measures whether early or postponed supplementary parenteral nutrition lowers infectious complications during the hospital stay.[6]
Key trial details
Trial 2024-512444-29-00 is a Phase 3 study in 362 patients undergoing kidney, liver, or kidney-pancreas transplantation. It compares Custodiol-N with Custodiol and aims to show that graft preservation with Custodiol-N is not worse than the comparison solution for graft function and injury after transplantation.[1]
Trial 2023-510492-57-00 is a Phase 2 pediatric heart transplant study with 15 participants. It compares Custodiol-N with Custodiol and focuses on safety during the first 3 months after treatment.[2]
Trial 2024-511517-38-00 is a Phase 2 study in 100 children with congenital heart malformation. It compares two methods of cardioplegia, which means heart protection during surgery, and it is suspended.[3]
Trial 2024-518174-13-00 is a Phase 3 liver transplantation study with 200 participants. It compares Custodiol-N with Custodiol solution for organ preservation and measures GPT (ALT) over 7 days after transplant.[4]
Trial 2023-507649-27-00 is a Phase 3 study with 38 participants after oesophagectomy. It examines how the route of nutrition affects muscle wasting, using CT scan measurements of muscle size.[5]
Trial 2023-505378-14-00 is a Phase 3 study with 342 participants after major emergency abdominal surgery. It compares early and postponed supplementary parenteral nutrition and looks at infection rates during admission.[6]
Study status and enrollment
Most of the trials in the data are authorised, which means they have been approved to run.[1][2][4][5][6]
One study is suspended, so it is not currently continuing as planned.[3]
The enrollment numbers range from 15 children in the pediatric heart transplant study to 362 patients in the large transplant study, showing that the research includes both small and larger patient groups.[2][1]






