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Postoperative; Dysfunction Following Cardiac SurgeryPhase 3OTICCNCT02521168

Oral Triiodothyronine for Children Undergoing Cardiopulmonary Bypass in Indonesia

A Phase 3 study testing Oral triiodothyronine in people with Postoperative; Dysfunction Following Cardiac Surgery, run by National Cardiovascular Center Harapan Kita Hospital Indonesia at 1 site in Indonesia.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A condition of decreased serum T3 level in children after cardiac surgery using cardiopulmonary bypass has been commonly recognized as euthyroid sick syndrome (ESS). This syndrome has been closely associated with low cardiac output syndrome after heart surgery. Read more about this study

Who is it for?
Ages 1 day to 36 months
What is being tested?
Oral triiodothyronine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
177 participants
Where
1 siteIndonesia
Study dates
Jul 2013to Jan 2015
Phase
Phase 3
Are there results?
None posted in the registry

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 1 day to 36 months
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Children undergoing cardiopulmonary bypass
  • Age 36 months old or less
  • Aristotle score 6-9
  • Total correction or biventricular repair

Who cannot join

  • Single ventricle defects
  • Body weight less than 2 kg at the time of recruitment
  • Presentation with sepsis
  • Tachyarrhythmia or any other arrhythmia before surgery
  • Creatinine level of more than 2 mg/dl
  • Known thyroid disease
  • Known lung abnormalities (including infection) before surgery

Trial locations and contacts

1 site in 1 country.

Indonesia1 site
  • Pediatric Cardiac ICU National Cardiovascular Center Harapan Kita

    Jakarta, DKI Jakarta, 11420

Other trials in Indonesia

About this study

A condition of decreased serum T3 level in children after cardiac surgery using cardiopulmonary bypass has been commonly recognized as euthyroid sick syndrome (ESS). This syndrome has been closely associated with low cardiac output syndrome after heart surgery. The unique characteristics of pediatric patients with congenital heart disease (CHD) in Indonesia have caused ESS to arise in the population even before surgical managements. Thyroid hormones increase cardiac function, respiration and diuresis. Increased myocardial function occurred through the improvement of mitochondrial effectiveness as the body energy source by utilizing effective energy substrates, lactate and pyruvate. Prevention of decreased serum thyroid hormones level by T3 supplementation could be clinically beneficial. Intravenous T3 unit dose is very expensive and inapplicable for daily use. In adult studies, oral T3 was found to be effective for the prevention of decreased serum T3 levels; similar study on pediatric population, however, has not been elucidated.

Read the detailed description

Methods:

The study was conducted at the cardiac paediatric cardiac intensive care unit of National Cardiovascular Center Harapan Kita. It was performed on paediatric congenital heart disease population who underwent open heart surgery with randomised, double-blind, controlled trial design. All patients with congenital heart disease, 3 years old or less, were included. Types of congenital heart disease suffered required subject to undergo surgery using cardiopulmonary bypass machine with Aristotle score of 6-9. Surgery was aimed for biventricular repair.

The sample size needed almost 200 patients with 50% is in the treatment group. This calculation was based on 90% of patients will be extubated and expected hazard ratio of corresponding treatment group is 1.7 with 5% alpha error and 20% beta error.

Patients were randomised using block randomisation procedure. The stratification factor will be age at the time of recruitment: < 6 weeks old, 6 weeks - 5 months old, > 5 months - 3 years old. Randomization will occur on the day of surgery.

The placebo - saccharum lactis - OR oral T3 (Tetronine, Dalim Biotech Korea) with the dose of 1 mcg per kg body weight were administered via nasogastric tube for every 6 hours starting from the time of anaesthesia induction until 11 doses in total (60 hours after the initial administration). Serial free T3 (FT3) and thyroid stimulating hormone (TSH) measurement were performed starting from the induction of anaesthesia until patient's discharge. Haemodynamics monitoring and echocardiography evaluation was conducted from day 1 to 3 after the surgery.

Statistical analysis:

Primary analysis will be performed using Cox Proportional Hazards for time to extubation result, including terms for stratification factors (age, Aristotle score and nutrition status). Patients will be included in analysis if they were randomised and received at least one dose of study drug according to the principal of Intention-to-Treat (ITT).

Being tested
Oral triiodothyronine, Placebo
Keywords
euthyroid sick syndrome, cardiopulmonary bypass, congenital heart disease, time to extubation
Medical subject headings
Euthyroid Sick Syndromes, Heart Defects, Congenital

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Oral triiodothyronineDrug

    Also called Tetronine, Lyothyronine

    Oral triiodothyronine is given peri-operatively through naso-gastric tube

  • PlaceboDrug

    Also called Saccharin lactis

    Placebo consist of saccharin lactis that has the same appearance as Tetronine

Study groups in NCT02521168
Study groupRoleWhat they receive
Oral triiodothyronineExperimentalOral T3 (triiodothyronine) is given 1 mcg/kg every 6 hourly through naso-gastric tube since induction of anaesthesia for 60 hours
Receives: Drug: Oral triiodothyronine
PlaceboPlacebo comparatorPlacebo (saccharin lactic) is given every 6 hourly through naso-gastric tube since induction of anaesthesia for 60 hours
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Intubation time

    All patients after undergoing congenital heart surgery will be supported by mechanical ventilation. Duration of this support since cross clamp off removal until after surgery will be assessed in the treatment and placebo group. Thyroid supplementation will increase the cardiac function and will make the patients extubated early than the patients without supplementation

    Measured: Until patients extubated after surgery in ICU OR died OR still intubated within 7 days

Secondary outcomes (2)
  1. Number of patients with low cardiac output syndrome

    Identified patients with low cardiac output syndrome in which had clinical signs and symptoms of low cardiac output are found with without the increasing of arterial and venous gap and metabolic acidosis and this condition needs 100% of inotropic support or even more than that from the beginning of inotropic used, the use of new inotropic, mechanical support, or other manoeuvres in order to increase cardiac output (e.g pacemaker)

    Measured: 6 hours, 12 hours, 18 hours, 24 hours, 48 hours post aortic cross clamp removal

  2. Drug adverse reaction

    Heart rate to evaluate tachycardia, blood pressure for hypertension, heart rate for arrhythmia, body temperature for hyperthermia

    Measured: Every hourly until 12 hours post cross clamp removal, every 3 hours until 24 hours, every 6 hours until 48 hours, every 12 hours until 72 hours post cross clamp removal, and until the patients discharge from hospital

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Aug 2015 (estimated)
  2. Study startJul 2013
  3. Primary completionOct 2014
  4. Study completionJan 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
177 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02521168
Sponsor's protocol ID
164/H2.F1/ETIK/2013
Acronym
OTICC
Status last verified
Feb 2016
First submitted
2 Aug 2015
Last updated
17 Feb 2016
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Oral triiodothyronine in people with Postoperative; Dysfunction Following Cardiac Surgery, run by National Cardiovascular Center Harapan Kita Hospital Indonesia at 1 site in Indonesia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Feb 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Indonesia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Intubation time (time frame: Until patients extubated after surgery in ICU OR died OR still intubated within 7 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Feb 2016.

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