NCT05232734

Brief Summary

Background: Depressed Glasgow Coma Scale (GCS) is common among critically ill patient s in the intensive care unit (ICU). It is one of the main reasons that hampers liberation from mechanical ventilation among ICU patients. Caffeine is commonly used in neonates for the treatment of apnea of prematurity. However, its efficacy has not been established in adult population. Objective: To find out the efficacy of oral caffeine in shortening duration of mechanical ventilation among adult patients. Hypothesis: Oral caffeine is effective as a central nervous system stimulant among adult patients with depressed GCS. Study design: Multi-center, randomised, double blind, placebo controlled clinical trial Population: Adult patients (≥ 21 years old) with GCS ≤ 8 from any causes (excluding surgically reversible causes) requiring continuation of mechanical ventilation, whom acute medical issues are stable or has resolved but not suitable for extubation solely due to depressed GCS, not planned for any surgical procedures within 24 hours and not on sedative agents for at least 24 hours, will be included in this study. For patients with primary Central Nervous System (CN lesions, neurologist or neurosurgeon approval will be obtained prior to recruitment. The exclusion criteria include known allergy or adverse reactions from caffeine, pregnant women, breast-feeding women, uncontrolled cardiac arrhythmias, uncontrolled hypertension, hyperactive delirium, patients with chronic kidney disease (CKD, any stage) who received midazolam or morphine infusion, patients who received barbiturate coma, patients who are on theophylline, aminophylline or psychotropic agents at the point of screening for recruitment, patients with feed intolerant, short bowel syndrome and active seizures. Intervention: Oral caffeine citrate 5mg/kg/dose twice a day (8am, 2pm) vs placebo Outcomes: Primary - Duration of mechanical ventilation Secondary - ICU mortality, 30-days mortality, ICU length of stay, blood pressure, heart rate, incidence of arrhythmia, GCS, incidence of re-intubation and need for tracheostomy

Trial Health

33
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Trial recruitment is currently suspended
Enrollment
10

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Nov 2022

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
suspended

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

First Submitted

Initial submission to the registry

January 13, 2022

Completed
28 days until next milestone

First Posted

Study publicly available on registry

February 10, 2022

Completed
10 months until next milestone

Study Start

First participant enrolled

November 24, 2022

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

June 27, 2024

Status Verified

June 1, 2024

Enrollment Period

3.1 years

First QC Date

January 13, 2022

Last Update Submit

June 26, 2024

Conditions

Keywords

CaffeineDepressed GCSMechanical Ventilation

Outcome Measures

Primary Outcomes (1)

  • Duration of mechanical ventilation

    Duration of mechanical ventilation in days

    From the start of study drug with follow up period of 30 days or until hospital discharge, whichever earlier

Secondary Outcomes (10)

  • ICU mortality

    From the start of study drug with follow up period of 30 days or until hospital discharge, whichever earlier

  • 30-days mortality

    From the start of study drug with follow up period of 30 days or until hospital discharge, whichever earlier

  • ICU length of stay

    From the start of study drug with follow up period of 30 days or until hospital discharge, whichever earlier

  • Blood pressure

    From the start of study drug with follow up period of 30 days or until hospital discharge, whichever earlier

  • Heart rate

    From the start of study drug with follow up period of 30 days or until hospital discharge, whichever earlier

  • +5 more secondary outcomes

Study Arms (1)

Oral caffeine group

EXPERIMENTAL

Patients in this arm will receive treatment with oral caffeine

Drug: Caffeine Citrate 20 MG/ML Oral Solution

Interventions

Caffeine syrup will be prepared by pharmacy laboratory and kept refrigerated (2-8C), to be used within 1 month from the date of preparation by pharmacy laboratory.

Also known as: Caffeine
Oral caffeine group

Eligibility Criteria

Age21 Years - 130 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult patients (≥ 21 years old),
  • Patients with encephalopathy (GCS ≤ 8) limiting extubation, where encephalopathy is deemed by clinician to be unresponsive to treatment or not eligible for treatment to reverse the encephalopathy (eg. transplantation) or if no treatment exists, and
  • Patients who are not planned for any surgical procedures within 24 hours
  • Patients who are not on sedative agents for at least 24 hours (exception for low dose fentanyl of up to 30mcg/h and dexmedetomidine of up to 0.5mcg/kg/h for analgesia/sedation/tube tolerance)
  • For patients with primary CNS lesions, neurologist or neurosurgeon approval will be obtained prior to recruitment.

You may not qualify if:

  • Known allergy or adverse reactions from caffeine,
  • Pregnant women,
  • Breast-feeding women,
  • Patients with uncontrolled cardiac arrhythmias,
  • Patients with uncontrolled hypertension,
  • Patients with hyperactive delirium,
  • Patients with chronic kidney disease (CKD, any stage) who received midazolam or morphine infusion during their ICU stay,
  • Patients who received barbiturate coma,
  • Patients who are on theophylline, aminophylline or psychotropic agents at the point of screening for recruitment,
  • Patients with feed intolerant, short bowel syndrome, or
  • Patients with active seizures

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Singapore General Hospital

Singapore, 169608, Singapore

Location

Related Publications (1)

  • Bright M, Raman V, Laupland KB. Use of therapeutic caffeine in acute care postoperative and critical care settings: a scoping review. BMC Anesthesiol. 2021 Mar 31;21(1):100. doi: 10.1186/s12871-021-01320-x.

    PMID: 33789583BACKGROUND

MeSH Terms

Interventions

caffeine citrateSolutionsCaffeine

Intervention Hierarchy (Ancestors)

Pharmaceutical PreparationsXanthinesAlkaloidsHeterocyclic CompoundsPurinonesPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Officials

  • Sharon GK Ong

    A/Professor

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Masking Details
The study drug is oral caffeine solution which will be prepared by pharmacy laboratory using caffeine powder into 20mg/mL caffeine solution. The solution will be packed in amber glass bottle ready for administration by nurses at bedside without further dilution.
Purpose
OTHER
Intervention Model
SINGLE GROUP
Model Details: Multi-center pilot observational single-arm clinical feasibility trial
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 13, 2022

First Posted

February 10, 2022

Study Start

November 24, 2022

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

June 27, 2024

Record last verified: 2024-06

Data Sharing

IPD Sharing
Will not share

Locations