Preoperative Clear Fluid FastingTimbarc-1NCT07288281
"Duration of Preoperative Clear Fluids Fasting in Patients Undergoing Liver Transplant"
An observational study of Preoperative Clear Fluid Fasting and Liver Transplant Recipient, run by Medical University of Warsaw at 1 site in Poland.
Trial summary
The goal of this prospective observational study is to report the duration of preoperative clear fluids fasting in patients undergoing liver transplant. It will also learn about the relationship between the duration of preoperative clear fluids fasting and changes in hemodynamic variables and metabolic profile at… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Preoperative Clear Fluid Fasting, Liver Transplant Recipient
- How many people
- 100 participants
- Where
- 1 sitePoland
- Study dates
- 1 Jun 2025to 1 Feb 2026
- How long will I take part?
- 1 Day
- Phase
- Observational
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients with liver diseases scheduled for elective liver transplant at University Clinical Centre of Medical University of Warsaw
Who may be able to join
- patients scheduled for elective liver transplant
Who cannot join
- patients unable to give detailed answer on clear fluid fasting due to severe hepatic encephalopathy or cognitive impairment
- lack of written informed consent
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Poland1 site, 1 recruiting
- Recruiting
University Clinical Centre of Medical University of Warsaw
Warsaw, Warszawa, 02-097
Paula Dudek, medical doctor, +48225992001, paula.dudek@wum.edu.pl
About this study
Official title: "Duration of Preoperative Clear Fluids Fasting in Patients Undergoing Liver Transplant. A Prospective Observational Study: the "Timbarc-1" a Pilot Study"
The goal of this prospective observational study is to report the duration of preoperative clear fluids fasting in patients undergoing liver transplant. It will also learn about the relationship between the duration of preoperative clear fluids fasting and changes in hemodynamic variables and metabolic profile at various anesthesia and transplant phases. The main questions it aims to answer are:
- How long liver recipient fast from clear fluids before liver transplant?
- Is there any relationship between the duration of preoperative clear fluids fasting and changes in blood pressure and hear rate after the induction of anesthesia?
- Is there any relationship between the duration of preoperative clear fluids fasting and blood glucose concentration, blood lactate concentration and acid base balance during anesthesia for liver transplant?
Read the detailed description
Clear fluids include water, certain juices without pulp (like apple or grape), clear sodas, tea or coffee without milk or cream, clear broth, sports drinks, gelatin, and popsicles without fruit pulp or yogurt.
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| liver recipient | liver transplant recipient undergoing liver transplantation in University Clinical Center of Medical University of Warsaw |
What is being measured
The primary outcome is the main question the study is designed to answer.
clear fluids fasting
duration of preoperative clear fluids fasting in patients undergoing liver transplant
Measured: before the induction of anesthesia
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Dec 2025
- Study start1 Jun 2025
- Primary completion31 Dec 2025 (estimated)
- Study completion1 Feb 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Preoperative Clear Fluid FastingStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 100 participants (estimated)
- Target duration
- 1 Day
Sponsor and investigators
- Lead sponsor
- Medical University of Warsaw
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07288281
- Sponsor's protocol ID
- KB/67/2025
- Acronym
- Timbarc-1
- Status last verified
- Jun 2025
- First submitted
- 4 Dec 2025
- Last updated
- 7 Jan 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No