Preoperative Fasting vs. Not Fasting in Critically Ill Patients

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorMassachusetts General Hospital

About this trial

The goal of this clinical trial is to learn if fasting or not fasting before a procedure has an effect on recovery in those who are critically ill. The main questions it aims to answer for patients on a breathing machine who are receiving tube feeding are:

* Does the risk of lung complications and death differ between those who are not fasting, which may have a higher chance of allowing tube feeding to enter the lungs, and fasting, which temporarily stops nutrition before a procedure? * Is there a difference in recovery times, hospital stays, infection rates, need for organ support, safety, and nutrition for those who either fast or do not fast before a procedure? * What is the relationship between nutrition and clinical outcomes?

Researchers will compare not fasting and fasting to see if it has an effect on recovery.

Participants will:

* Be assigned by chance (like a coin toss) to one of two groups. One group (fasting group) will have their tube feeding stopped at least 8 hours before their procedure. The other group (not fasting group) will have their tube feeding stopped right before their procedure. * Be monitored via medical record for amount of protein and calories received, and any complications related to fasting/not fasting.

* Data from routine electronic medical records will be reviewed to determine how participants are doing 3 months after their procedure.

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Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

1. Age ≥ 18

Current admission to ICU*

Secure airway** with no plans for its removal prior to procedure

Current non-trophic (> 10 mL/hr) tube (enteral) feeding*** with no plans to discontinue prior to procedure for reasons other than preoperative fasting

Disqualifiers

Inability to obtain informed consent

Inability to enroll and randomize > 8 hours prior to planned procedure time

Inability to deliver trial interventions

Expected survival < 48 hours as determined by the enrolling physician-investigator

Trial design

Design model

Parallel

Treatments tested in this trial

  • Fasting

    Other intervention

    Process: Fasting pre-procedure Tube feeding will be stopped at least 8 hours before the patient's scheduled surgery or procedure time.

  • Not fasting

    Other intervention

    Process: Not fasting pre-procedure Tube feeding will be continued until patient transfer to the operating room/procedure area.

Treatment groups

1,072 Participants
are divided into 2 treatment groups
Group A: FastingActive comparator 1 intervention
Group B: Not FastingActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Days alive and free from mechanical ventilation on postoperative day 28.

Defined as the days alive and free of organ support (dialysis, assisted ventilation, and vasopressors) to day 28. Participants will need to be free of all three components (assisted ventilation, vasopressors, new renal replacement therapy) to qualify for a day alive and free from organ failures. Patients on chronic dialysis will not be scored for the new renal failure free component of this outcome.

Time frame
Post-operative day 28

Secondary outcomes

1

Postoperative mortality

Death from any cause at any location, including deaths after withdrawal of care.

Time frame
Post-operative day 28
2

Ventilator-free days in survivors

28 minus last post-operative day of mechanical ventilation assessed only in survivors at post-operative day 28. Non-survivors are excluded

Time frame
Post-operative day 28
3

All-cause, all-location mortality

Death from any cause at any location, including deaths after withdrawal of care.

Time frame
Post-operative day 90
4

Length of ICU stay

90 minus the last post-operative day of ICU admission.

Time frame
Post-operative day 90

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Massachusetts General Hospital

Lead sponsor

Patient-Centered Outcomes Research Institute

Collaborator

Columbia University

Collaborator