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Tetralogy of Fallot (TOF)Phase 2NCT00848393

Measures to Lower the Stress Response in Pediatric Cardiac Surgery

A Phase 2 study testing Fentanyl (High Dose), Fentanyl (Low Dose) and Fentanyl (Low Dose) + Dexmedetomidine in people with Tetralogy of Fallot (TOF) and Ventricular Septal Defects (VSD), run by Nationwide Children's Hospital at 1 site in United States.

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

Cardiac surgery induces a measurable stress response in patients which leads to increased morbidity and mortality post-operatively. Through clinical observation, anesthesiologists have determined that varying the combinations of anesthesia drugs used during surgery and just after reduces the stress response, and by… Read more about this study

Who is it for?
Ages 1 month to 3 years
What is being tested?
Fentanyl (High Dose), Fentanyl (Low Dose) and Fentanyl (Low Dose) + Dexmedetomidine
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
52 participants
Where
1 siteUnited States
Study dates
Nov 2008to Dec 2013
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 month to 3 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Childrens with the diagnosis of tetralogy of fallot, ventricular septal defect and atrioventricular septal defect who are under one year of age.

Who cannot join

  • Patients who are having reoperation.
  • Patients with comorbidities, such as heart failure.
  • Patients receiving digoxin preoperatively.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Nationwide Children's Hospital

    Columbus, Ohio, 43205

Other trials in United States

About this study

Official title: Stress Response in Children Undergoing Cardiac Surgery: a Prospective Randomized Comparison Between Low Dose Fentanyl (LDF), Low Dose Fentanyl Plus Dexmedetomidine (LDF + Dex) and High Dose Fentanyl (HDF).

Cardiac surgery induces a measurable stress response in patients which leads to increased morbidity and mortality post-operatively. Through clinical observation, anesthesiologists have determined that varying the combinations of anesthesia drugs used during surgery and just after reduces the stress response, and by extension, morbidity and mortality. However, only a few studies have explored this phenomenon scientifically.

Read the detailed description

In this study, we aim to demonstrate comparatively that use of dexmedetomidine in addition to low dose narcotics reduces the stress response in cardiac surgical patients and results in less morbidity and mortality. Additionally, dexmedetomidine (Dex) should facilitate safe early extubation in pediatric cardiac patients, which results in decreased ventilator associated co-morbidities. Patients will be randomly assigned to three groups; one group will receive low dose fentanyl (LDF), one will receive low dose fentanyl with dexmedetomidine (LDF + Dex), and one will receive high dose fentanyl (HDF). Blood samples will be collected post-induction, post-sternotomy, after going on cardiopulmonary bypass, at the completion of surgery, and post-operatively to determine the patients' stress hormone levels. The patients will receive standard post-operative care, and clinical data collected as part of this care will be used to determine the incidence of morbidity and mortality. The results of the blood tests will be correlated with the incidence of morbidity and mortality to demonstrate the relative effectiveness of the different anesthesia methods.

Blood samples will be analyzed for the presence of the stress hormones cortisol, epinephrine, norepinephrine, adrenocorticotropic hormone (ACTH), Interleukin 8 (IL-8), TNF-alpha (Tumor Necrosis Factor), and nitrated albumin. Arterial blood gas, glucose and lactate levels, heart rate, blood pressure, use of vasoactive support, length of ventilator use, post-operative mortality, post-operative morbidity, length of Intensive Care Unit (ICU) stay, and length of hospital stay will be recorded.

Children previously enrolled in the surgery study will complete assessments of their cognitive ability, developmental status, and emotional and behavioral adjustment. For the neuro-developmental outcome follow up, Children's cognitive ability will be assessed using the Stanford-Binet Intelligence Scales, 5th Edition (SB5). The SB5 is a widely-used measure of intellectual functioning that is normed for ages 2 and up. The test takes 30-50 minutes to administer to young children, and provides an overall Intelligence Quotient (IQ) score, as well as scores for five primary factors of cognitive ability: Fluid Reasoning, Knowledge, Quantitative Reasoning, Visual-Spatial Processing; and Working Memory. The SB5 has demonstrated excellent reliability and validity.

Being tested
Fentanyl (High Dose), Fentanyl (Low Dose), Fentanyl (Low Dose) + Dexmedetomidine
Keywords
pediatric cardiac surgery, stress response, early extubation, Dexmedetomidine, TOF, VSD, AVSD
Medical subject headings
Tetralogy of Fallot, Heart Septal Defects, Ventricular, Endocardial Cushion Defects, Fractures, Stress, Atrioventricular Septal Defect

What participants receive

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

  • Fentanyl (High Dose)Drug

    Also called Fentanyl citrate

    Fentanyl (High Dose) 25 mcg/kg in two divided doses. Half-dose will be given at induction and the second half-dose given prior to incision.

  • Fentanyl (Low Dose)Drug

    Also called Fentanyl citrate

    Fentanyl (Low Dose) 10 mcg/kg in two divided doses. Half-dose will be given at induction and the second half-dose given prior to incision.

  • Fentanyl (Low Dose) + DexmedetomidineDrug

    Also called Fentanyl citrate + Precedex for dexmedetomidine

    Fentanyl (Low Dose) + Dexmedetomidine. Dexmedetomidine at 1mcg/kg loading dose over 10 minutes, followed by an infusion at a rate of 0.5mcg/kg/hr. In addition, this group will receive a total of 10 mcg/kg Fentanyl (Low Dose). Half the dose will be given at induction and the second half before incision.

Study groups in NCT00848393
Study groupRoleWhat they receive
Fentanyl (High Dose)Active comparatorThis arm will receive a total of 25 mcg/kg of Fentanyl (High Dose) in two divided doses. First half-dose given at induction and second half-dose given before incision.
Receives: Drug: Fentanyl (High Dose)
Fentanyl (Low Dose)Active comparatorThis arm will receive a total of 10 mcg/kg of Fentanyl (Low Dose). First half-dose will be given at induction and second half -dose given before incision.
Receives: Drug: Fentanyl (Low Dose)
Fentanyl (Low Dose) + DexmedetomidineActive comparatorThis arm will receive10 mcg/kg of Fentanyl (Low Dose) -2 divided doses. Dexmedetomidine (Dex) loading dose-1 mcg/kg over 10 min, then Dex infusion at 0.5mcg/kg/hr.
Receives: Drug: Fentanyl (Low Dose) + Dexmedetomidine

What is being measured

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

  1. ACTH and Cytokine Levels

    N = 48 n = 16 (LDF); n = 17 (HDF); n = 15 (LDF + Dex) ACTH assayed by enzyme-linked immunosorbent assay (ELISA); Cytokine levels in plasma were measured using the Immulite automated chemiluminometer. Measured cytokines include interleukin (IL)-6, IL-8, IL-10, and tumor necrosis factor-α.

    Measured: Blood draws to measure cytokines levels within one hour of draw: after induction; after sternotomy; after starting cardiopulmonary bypass; at the end of the procedure; and 24 hours after the procedure.

  2. Comparisons Between Groups for Narcotic and/or Dexmedetomidine Intervention Influence on Length of CTICU Stay.

    Measured: Hospital admission to discharge from CTICU (average of 2-4 days)

  3. Comparisons Between Groups for Narcotic and/or Dexmedetomidine Intervention Influence on Time on Ventilator.

    Measured: Time of intubation to extubation (variable)

  4. Stanford-Binet Intelligence Scales

    The Stanford-Binet test evaluates the overall IQ score from the assessment of cognitive ability. The test consists of 15 subtests, grouped into the four area scores. Six subtests are administered to all age levels. The subtests are: Vocabulary, Comprehension, Pattern Analysis, Quantitative, Bead Memory, and Memory for Sentences. Number of tests administered and test difficulty are based on the test taker's age and performance on subtest measuring word knowledge. The word knowledge subtest is given to all test takers and is the first subtest administered. A score of 100 is in the normal or average range. Higher scores suggest a higher level of functioning related to each category. (University of Cincinnati, 2003) Raw scores for each subtest within the overall test are converted to scaled scores using a table within each test manual to look up equivalents. Scaled scores are then converted to standard scores (range=50-150).

    Measured: 1-4 yrs. post-surgery

  5. Stress Hormone Levels

    Cortisol, epinephrine, and norepinephrine assayed by enzyme-linked immunosorbent assay (ELISA).

    Measured: Blood draws to measure stress hormone levels within one hour of draw: after induction; after sternotomy; after starting cardiopulmonary bypass; at the end of the procedure; and 24 hours after the procedure.

Secondary outcomes (2)
  1. Stanford-Binet Cognitive Ability

    The Stanford-Binet Intelligence Scale is now in its fifth edition (SB5) and was released in 2003. It is a cognitive ability and intelligence test that is used to diagnose developmental or intellectual deficiencies in young children. The test measures five weighted factors and consists of both verbal and nonverbal subtests. The five factors being tested are knowledge, quantitative reasoning, visual-spatial processing, working memory, and fluid reasoning. Raw scores for each subtest within the overall test are converted to scaled scores using a table within each test manual to look up equivalents. Scaled scores are then converted to standard scores (range=50-150). Higher scores suggest a higher level of functioning related to each category.

    Measured: 1-4 yrs post-surgery

  2. ABAS-II

    The ABAS-II is designed to evaluate whether an individual displays various functional skills necessary for daily living without the assistance of others. Thus, this instrument focuses on independent behaviors and measures what an individual actually does, in addition to measuring what he or she may be able to do. In addition, the ABAS-II focuses on behaviors an individual displays on his or her own, without assistance from others. The Parent/Primary Caregiver Form is a comprehensive, diagnostic measure of the adaptive skills that have primary relevance for the functioning of infants, toddlers, and preschoolers in the home and other settings, and can be completed by parents or other primary care providers. Each composite or domain score is determined by summing the appropriate scaled scores and then determining its equivalent composite or domain score by looking it up in a table located in the manual.The range for all scores is 50-150, with a higher score equaling a better outcome.

    Measured: 1-4 yrs post-surgery

Timeline

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

  1. First posted20 Feb 2009 (estimated)
  2. Study startNov 2008
  3. Primary completionDec 2013
  4. Study completionDec 2013

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
52 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00848393
Sponsor's protocol ID
IRB08-00029
Other IDs
101911
Status last verified
Jul 2018
First submitted
19 Feb 2009
Last updated
27 Jul 2018
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Mukhtar AM, Obayah EM, Hassona AM. The use of dexmedetomidine in pediatric cardiac surgery. Anesth Analg. 2006 Jul;103(1):52-6, table of contents. doi: 10.1213/01.ane.0000217204.92904.76.

    PubMed 16790625
  • Mellon RD, Simone AF, Rappaport BA. Use of anesthetic agents in neonates and young children. Anesth Analg. 2007 Mar;104(3):509-20. doi: 10.1213/01.ane.0000255729.96438.b0.

    PubMed 17312200
  • Anand KJ, Hickey PR. Halothane-morphine compared with high-dose sufentanil for anesthesia and postoperative analgesia in neonatal cardiac surgery. N Engl J Med. 1992 Jan 2;326(1):1-9. doi: 10.1056/NEJM199201023260101.

    PubMed 1530752
  • Anand KJ, Hansen DD, Hickey PR. Hormonal-metabolic stress responses in neonates undergoing cardiac surgery. Anesthesiology. 1990 Oct;73(4):661-70. doi: 10.1097/00000542-199010000-00012.

    PubMed 2221435
  • Kapoor MC, Ramachandran TR. Inflammatory response to cardiac surgery and strategies to overcome it. Ann Card Anaesth. 2004 Jul;7(2):113-28.

    PubMed 17827544
  • Gruber EM, Laussen PC, Casta A, Zimmerman AA, Zurakowski D, Reid R, Odegard KC, Chakravorti S, Davis PJ, McGowan FX Jr, Hickey PR, Hansen DD. Stress response in infants undergoing cardiac surgery: a randomized study of fentanyl bolus, fentanyl infusion, and fentanyl-midazolam infusion. Anesth Analg. 2001 Apr;92(4):882-90. doi: 10.1097/00000539-200104000-00016.

    PubMed 11273919

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Fentanyl (High Dose), Fentanyl (Low Dose) and Fentanyl (Low Dose) + Dexmedetomidine in people with Tetralogy of Fallot (TOF) and Ventricular Septal Defects (VSD), run by Nationwide Children's Hospital at 1 site in United States.

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 1 inclusion and 3 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 27 Jul 2018. 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 United States. 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. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 27 Jul 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

ACTH and Cytokine Levels (time frame: Blood draws to measure cytokines levels within one hour of draw: after induction; after sternotomy; after starting cardiopulmonary bypass; at the end of the procedure; and 24 hours after the procedure.). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00848393, which also lists 6 linked publications.

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 27 Jul 2018; AzTrials last refreshed its copy on 26 Oct 2026.

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