ClinicalTrials.gg
Not yet recruitingNCT07729280Updated Jul 27, 2026

Impact of Preoperative Oral Carbohydrate Loading on Insulin Resistance in Pediatric Cardiac Surgery Patients

An interventional study of Carbohydrate and placebo solution in Cardiac Surgery, Insulin Resistance and Pediatric Cardiac Surgery, sponsored by Rifdhani Fakhrudin Nur. Not yet recruiting at 1 site in Indonesia. Open to participants aged 2 Years to 16 Years. Per ClinicalTrials.gov, last updated 2026-07-27.

Sponsored by Rifdhani Fakhrudin Nur · Not applicable, Interventional, and Supportive care

Phase
Not applicable
Study type
Interventional
Enrollment
44
Allocation
Randomized
Ages
2 Years to 16 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 20 studies in Insulin Resistance with a site in Indonesia — 4 open to participants now, 4 under way, none of them phase 3. Insulin Resistance · Indonesia.

Planned enrollment
12th of 18
44 · median 50
Started
2026
with 1 other
No phase
13 of 20
4 open now
Registered
19th of 20
by date
Lead sponsor
2 of 20
Rifdhani Fakhrudin Nur

Among the 20 studies in Insulin Resistance with a site in Indonesia, this one is the 12th largest by planned enrollment of the 18 interventional ones that give a count, is one of 2 that started in 2026, is one of 13 with no phase, and was the 19th registered.

Insulin Resistance

2,969 studies on the registry are indexed under Insulin Resistance; 338 are open to participants now.

Browse Insulin Resistance studies →

Open to participants now

4 of the 20 studies in Insulin Resistance with a site in Indonesia are open now. Recruiting first, the newest first:

All 4 open studies →

A study can be open while its sites in Indonesia have not opened yet or have stopped. Only those recruiting at a site in Indonesia →

Who these studies take

Of the 244 Insulin Resistance studies recruiting now, 54 (22%) set no upper age limit and 158 (65%) stop at 75 or younger; 30 take children under 18; 113 take healthy volunteers.

This study: 2 Years to 16 Years · all sexes · no healthy volunteers.

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02

Study summary

Surgical stress and preoperative fasting can induce insulin resistance, characterized by impaired cellular response to insulin and resulting hyperglycemia. In pediatric patients undergoing cardiac surgery, this metabolic stress response may negatively affect postoperative recovery. Although preoperative oral carbohydrate loading, defined as administering a carbohydrate-rich beverage before surgery rather than prolonged fasting, has demonstrated efficacy in reducing postoperative insulin resistance in adults, evidence supporting its use in pediatric cardiac surgery remains limited.

This randomized controlled trial aims to determine whether preoperative oral carbohydrate loading reduces perioperative insulin resistance, as measured by the Homeostasis Model Assessment of Insulin Resistance (HOMA-IR), in pediatric patients undergoing cardiac surgery. The study will compare outcomes between children who receive an oral carbohydrate beverage prior to surgery and those who follow standard preoperative fasting protocols.

Read the detailed description

This study is a prospective, single-blind, randomized controlled trial of pediatric patients who underwent elective cardiac surgery at Dr. Sardjito General Hospital, Yogyakarta, Indonesia, from April to August 2026. The study sample consisted of pediatric patients aged 2-16 years with an ASA physical status of 2 or 3 who had good tolerance for enteral fluid administration. Patients will be randomly assigned to one of two groups: 1. Intervention Group (Carbohydrate Loading): 3 mL/kg body weight of a maltodextrin-based carbohydrate drink 2 hours before anesthesia; 2. Control Group (Placebo Loading): 3 mL/kg body weight of plain water 2 hours before anesthesia. All patients will follow standard preoperative fasting guidelines. Blood samples for glucose and insulin testing will be collected immediately after induction (baseline), at 0 hours of Intensive Care Unit (ICU) admission, and at 24 hours of ICU admission. The primary outcome is the Homeostatic Model Assessment of Insulin Resistance (HOMA-IR). Secondary outcomes include blood glucose levels, serum insulin concentration, exogenous insulin dose, and glycemic variability.

All study participants will undergo preoperative assessment, followed by a carbohydrate-loading protocol, and assessment of blood glucose levels, insulin resistance, exogenous insulin administration, and intraoperative and postoperative glycemic variability. Numerical data will be presented as means and standard deviations. Categorical data will be presented as counts and percentages. The Shapiro-Wilk normality test will be applied to all numerical data. Subject characteristics between the two groups will be compared using the Chi-square test for categorical data and the t-test (for normally distributed data) or the Mann-Whitney test (for non-normally distributed data) for numerical data. Pre- and postoperative HOMA-IR values will be compared using a paired t-test if the data are normally distributed, or a two-way ANCOVA (univariate GLM) if they are not. A p-value \< 0.05 will be considered statistically significant.

03

Conditions studied

  • Cardiac Surgery
  • Insulin Resistance
  • Pediatric Cardiac Surgery

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Keywords

  • Cardiac surgery
  • Carbohydrate loading
  • Insulin resistance
  • Glycemic variability
04

Who can participate

Ages eligible
2 Years to 16 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 2-16 years.
  • 2 or 3
  • Good tolerance of enteral feeding

Exclusion criteria

Exclusion Criteria:

  • History of type 1 diabetes mellitus.
  • History of thyroid insufficiency treated with thyroid medication.
  • History of adrenal insufficiency treated with .
  • History of gastroesophageal reflux disease.
  • Patients receiving preoperative parenteral nutrition.
  • Emergency or urgent cardiac surgery.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ASA physical status

The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
44 participants (estimated)

Study arms

  • Experimental
    Carbohydrate Loading (CL)

    Participants receive 3 mL/kg body weight of a carbohydrate drink 2 hours before anesthesia induction.

    Dietary Supplement: Carbohydrate

  • Placebo comparator
    Placebo Loading (PL)

    Participants receive 3 mL/kg body weight of plain water 2 hours before surgery, following the same timing and fasting protocol as the experimental group

    Other: placebo solution

Interventions

  • Dietary supplementCarbohydrate

    Participants receive 3 mL/kg body weight of a carbohydrate drink 2 hours before anesthesia induction. The drink is used to lower insulin resistance and improve perioperative recovery.

    Also known as: preoperative carbohydrate loading drink, Oral carbohydrate drink

  • Otherplacebo solution

    Participants receive 3 mL/kg body weight of plain water 2 hours before surgery, following the same timing and fasting protocol as the experimental group.

    Also known as: Clear water placebo, Plain water

06

What researchers measure

Primary outcomes

  1. HOMA-IR (Homeostasis Model Assessment for Insulin Resistance)

    The Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) is calculated as fasting insulin (µU/mL) × fasting glucose (mmol/L) / 22.5. Higher values indicate greater insulin resistance.

    Time frame: Baseline, 0 Hour ICU Admission, 24 hours ICU Admission

Secondary outcomes

  1. Blood Glucose Level

    Blood glucose measured from central venous samples to assess changes in glucose metabolism during and after cardiac surgery.

    Time frame: Baseline, 0 hour ICU Admission, 24 hours ICU Admission

  2. Serum Insulin Concentration

    Serum insulin level measured from central venous blood samples to characterize perioperative insulin changes. Higher values indicate higher circulating insulin.

    Time frame: Baseline, 0 hour ICU Admission, 24 hours ICU Admission

  3. Exogenous Insulin Dose

    Total daily dose of exogenous insulin (basal and/or bolus) required to achieve glycemic control will be recorded, expressed in units per day (U/day) or units per kilogram body weight per day (U/kg/day). Change in insulin dose from baseline will be used to reflect changes in insulin requirement/sensitivity.

    Time frame: Baseline, 0 hour ICU Admission, 24 hours ICU Admission

  4. Glycemic Variability

    Glycemic variability is defined as the fluctuation of blood glucose levels during the perioperative period, calculated from serial blood glucose measurements. Variability will be expressed as the standard deviation (SD) and/or coefficient of variation (%CV) of serial glucose values (numeric/continuous scale). Higher SD/CV values indicate greater glycemic fluctuation during the perioperative period.

    Time frame: Baseline, 0 Hour ICU Admission, 24 Hours ICU Admission

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: Yes — De-identified individual participant data (IPD) will be made available upon reasonable request to the corresponding investigator after publication of study results.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Aug 2026; primary completion for Oct 2026, 2 months later.

Of 714 non-industry interventional studies with no phase under Insulin Resistance, half reached primary completion within 22 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 41. This study's planned 2 months is below that.

Counting every sponsor, half of 754 studies reached it within 21 months; a quarter within 9 and three quarters within 40.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 21, 2026
First posted
Jul 27, 2026
StartEst.
Aug 25, 2026
Primary completionEst.
Oct 30, 2026
CompletionEst.
Nov 1, 2026
Last update
Jul 27, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 27, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07729280
Lead sponsor
Rifdhani Fakhrudin Nur
Responsible party
Rifdhani Fakhrudin Nur (Principal Investigator, Gadjah Mada University) — Sponsor-investigator
First posted
Jul 27, 2026
Start date
Aug 25, 2026 (estimated)
Primary completion
Oct 30, 2026 (estimated)
Completion
Nov 1, 2026 (estimated)
Last update
Jul 27, 2026

Study contacts

Rifdhani Fakhrudin Nur
Contact
rifdhani@mail.ugm.ac.id
+6281390051037

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Carbohydrates

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