NCT05726136

Brief Summary

A short bolus infusion of fluid, called "fluid challenge" is commonly recommended for fluid treatment during longer surgery. However a prolonged increase of the blood volume is a prerequisite to recommend the technique. The purpose with the study is to examine the plasma expanding effect of three different fluid challenge strategies (acetated Ringers 4 ml/kg body weight, albumin 5% 4 ml/kg body weight or albumin 20% 1 ml/kg body weight), using hemoglobin as a dilution indicator.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for phase_4 colorectal-cancer

Timeline
6mo left

Started Oct 2023

Typical duration for phase_4 colorectal-cancer

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress84%
Oct 2023Oct 2026

First Submitted

Initial submission to the registry

January 15, 2023

Completed
29 days until next milestone

First Posted

Study publicly available on registry

February 13, 2023

Completed
8 months until next milestone

Study Start

First participant enrolled

October 23, 2023

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2026

Last Updated

April 30, 2026

Status Verified

April 1, 2026

Enrollment Period

3 years

First QC Date

January 15, 2023

Last Update Submit

April 24, 2026

Conditions

Keywords

laparoscopic surgery, fluid therapy, plasma volume

Outcome Measures

Primary Outcomes (1)

  • Plasma volume expansion after a fluid bolus

    Plasma volume using hemoglobin as an indicator of dilution

    60 minutes after an intravenous fluid bolus

Secondary Outcomes (10)

  • Fluid Balance

    18 to 24 hours

  • Stroke Volume

    60 minutes after an intravenous fluid bolus

  • Arterial Blood Pressure

    60 minutes after an intravenous fluid bolus

  • Heart Rate

    60 minutes after an intravenous fluid bolus

  • Bioimpedance

    18 to 24 hours

  • +5 more secondary outcomes

Study Arms (3)

acetated Ringers

EXPERIMENTAL

The circulatory effect of a bolus infusion with 4 ml/kg body weight of acetated Ringers will be studied. If cardiac output increase with 10% a second bolus will be infused and further studied.

Drug: acetated Ringers

albumin 5%

EXPERIMENTAL

The circulatory effect of a bolus infusion with 4 ml/kg body weight of Albumin 5% will be studied. If cardiac output increases with 10% a second bolus will be infused and further studied.

Drug: albumin 5%

albumin 20%

EXPERIMENTAL

The circulatory effect of a bolus infusion with 1 ml/kg body weight of Albumin 20% will be studied. If cardiac output increase with 10% a second bolus will be infused and further studied.

Drug: albumin 20%

Interventions

After insufflation of carbon dioxide during an abdominal laparoscopic procedure, the first fluid bolus is infused. Circulatory and volume effects are studied. If cardiac output increase a second bolus is infused and studied.

Also known as: Ringer's acetate, ringer acetate, acetate Ringer´s
acetated Ringers

After insufflation of carbon dioxide during an abdominal laparoscopic procedure, the first bolus of fluid is infused. Circulatory and volume effects are studied. If cardiac output increases a second bolus is infused and studied.

Also known as: Albumin (Human) 5%, Human Albumin 5%
albumin 5%

After insufflation of carbon dioxide during an abdominal laparoscopic procedure, the first bolus of fluid is infused. Circulatory and volume effects are studied. If cardiac output increases a second bolus is infused and studied.

Also known as: Human Albumin 20%, Albumin (Human) 20%
albumin 20%

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Written consent to participate in the study
  • For women: relevant contraceptive, menopausal or a negative pregnancy test.
  • ASA category I to III
  • Laparoscopic abdominal surgery, with a duration of at least 90 minutes.
  • to 85 years

You may not qualify if:

  • Patients with known cardiac failure
  • \<18 or \>85 years
  • known allergy to albumin
  • extracellular hyperhydration or hypervolemia
  • kidney failure
  • pregnancy or planned pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Vrinnevi Hospital

Norrköping, Östergötland County, 60379, Sweden

RECRUITING

MeSH Terms

Conditions

Colorectal NeoplasmsUrologic NeoplasmsNeoplasms

Interventions

Ringer's acetatezidovudine 5'-monophosphate-mannose-albumin conjugateAlbuminsgalactosamine-conjugated serum albumin-conjugated-(rhodamine X)20

Condition Hierarchy (Ancestors)

Intestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteDigestive System DiseasesGastrointestinal DiseasesColonic DiseasesIntestinal DiseasesRectal DiseasesUrogenital NeoplasmsFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesUrologic Diseases

Intervention Hierarchy (Ancestors)

ProteinsAmino Acids, Peptides, and Proteins

Study Officials

  • Joachim Zdolsek, MD PhD

    Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: 3 randomized parallel groups, with 20 patients in each group. Each group receives a prespecified fluid regime with: 1. acetated Ringers 2. albumin 5% or 3. albumin 20%
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
consultant, assoc prof

Study Record Dates

First Submitted

January 15, 2023

First Posted

February 13, 2023

Study Start

October 23, 2023

Primary Completion (Estimated)

October 31, 2026

Study Completion (Estimated)

October 31, 2026

Last Updated

April 30, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Individual de-identified results will be shared, when results are published.

Locations