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CompletedNCT05393817Updated Nov 28, 2023

Caffeine Citrate Use and Electronic Activity of the Diaphragm (EDI) Changes

An observational study in Preterm, Apnea of Prematurity and Caffeine, sponsored by Seoul St. Mary's Hospital. Completed at 1 site in Korea, Republic of. Per ClinicalTrials.gov, last updated 2023-11-28.

Sponsored by Seoul St. Mary's Hospital · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
14
Sex
All
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Study summary

Caffeine citrate, the first-line agent for apnea of prematurity, enhances diaphragmatic activity. EDI values of neurally adjusted ventilatory assist (NAVA) modes can be used to quantify the diaphragmatic activity triggered by electrical impulse from the respiratory center. This study aims to evaluate the EDI changes following caffeine citrate administration and cessation in preterm infants, and whether such changes are affected by different doses used variably in clinical settings.

Read the detailed description

Caffeine citrate has been used as the first-line agent for apnea of prematurity. It works via mechanisms including stimulation of the respiratory center in medulla, increasing sensitivity to carbon dioxide retention, and increment in diaphragmatic activity. The effect of caffeine citrate has been evaluated largely based on parameters concerning clinical symptoms (e.g., decrease in the number of apnea, extubation success, decreased incidence of bronchopulmonary dysplasia) but not quantified parameters of actual diaphragmatic activity. Also, while usual doses of caffeine administration is described in the literature, consensus on the effect of caffeine citrate depending on different dosages has not been established.

The current study aims to evaluate effect of caffeine citrate by quantifying the electrical impulses of diaphragmatic activity using EDI values captured from neurally adjusted ventilatory assist (NAVA) mode.

Out of preterm infants necessitating invasive or non-invasive ventilators, those who are supported by invasive or non-invasive NAVA would be recruited. EDI changes would be monitored for the following timepoints: at the administration of caffeine citrate loading dose, 1st maintenance dose after loading, and at cessation of caffeine citrate.

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Conditions studied

  • Preterm
  • Apnea of Prematurity
  • Caffeine

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03

In context

Premature Birth

2,554 studies on the registry are indexed under Premature Birth; 498 are open to participants now.

This study's enrollment of 14 is below the median of 112 across 777 observational studies indexed under Premature Birth.

Browse Premature Birth studies →

Lead sponsor

Seoul St. Mary's Hospital is the lead sponsor of 71 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Preterm infants admitted to the neonatal intensive care unit of the study site

Inclusion criteria

  • Preterm infants born at less than 34 weeks' gestation who are supported by invasive or non-invasive NAVA

Exclusion criteria

Exclusion Criteria:

  • major congenital anomaly, chromosomal or genetic abnormality
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Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
14 participants (actual)
Patient registry
No

Groups and cohorts

  • Low-dose group

    Infants receiving low dose caffeine citrate (up to 10mg/kg/day)

    Drug: caffeine citrate

  • High dose group

    Infants receiving high dose caffeine citrate (exceeding 10mg/kg/day)

    Drug: caffeine citrate

Interventions

  • Drugcaffeine citrate

    caffeine citrate administration, dosage decided by the the physician on duty, within the range of routine management (5mg/kg/day \~ 20mg/kg/day)

    Also known as: caffeine, Neocaf injection [20mg] (Pharmbio Korea Inc.), Neocaf solution [20mg] (Pharmbio Korea Inc.)

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What researchers measure

Primary outcomes

  1. EDI change after caffeine citrate loading dose

    changes in EDI min and EDI peak values (μV) after the loading dose administration

    Time frame: 20 minutes before ~ 20 minutes after loading dose of caffeine citrate

  2. EDI change after caffeine citrate maintenance dose

    changes in EDI min and EDI peak values (μV) after the 1st maintenance dose

    Time frame: 20 minutes before ~ 20 minutes after 1st maintenance dose of caffeine citrate

  3. EDI change after caffeine citrate cessation

    changes in EDI min and EDI peak values (μV) after caffeine discontinuation

    Time frame: 20 minutes before ~ 48 hours after caffeine citrate discontinuation (discontinuation time point definition: 48~96 hours after the last dose of caffeine citrate administration)

Secondary outcomes

  1. short-term effect of caffeine citrate administration

    number of apnea and/or bradycardia

    Time frame: 24 hours before ~ 24 hours after caffeine citrate administration

Other outcomes

  1. respiratory outcome of caffeine citrate administration (1)

    duration of invasive mechanical ventilation (days)

    Time frame: During neonatal intensive care unit stay up to 48 weeks postmenstrual age (average of 3 months)

  2. respiratory outcome of caffeine citrate administration (2)

    bronchopulmonary dysplasia severity (no/mild/moderate/severe)

    Time frame: 36 weeks postmenstrual age or at discharge, whichever comes first

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Study locations

1 site
  • Seoul St. Mary's Hospital
    Seoul, Seocho-Gu 06591, Korea, Republic of
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05393817
Lead sponsor
Seoul St. Mary's Hospital
Responsible party
Sook Kyung Yum (Professor, The Catholic University of Korea) — Principal investigator
First posted
May 26, 2022
Start date
Jun 8, 2022
Primary completion
Oct 18, 2023
Completion
Oct 18, 2023
Last update
Nov 28, 2023

Study contacts

Sook Kyung Yum, MD, PhD
principal investigator · The Catholic University of Korea

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 completed, as verified in Nov 2023. You cannot join it, but the record below documents what was studied.

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