PICU-related Sleep and Circadian Dysregulation Pilot Study

March 18, 2026 updated by: Amanda B. Hassinger, State University of New York at Buffalo

A Three-phase Pilot Study of the Feasibility of the Measurement and Promotion of Sleep and the Circadian Rhythm in a Pediatric Intensive Care Unit

A single center pilot trial investigating the feasibility of using actigraphy and salivary melatonin levels to measure the sleep and circadian rhythm of critically ill children aged 3 to 6 years old. This study will also measure the feasibility of providing daytime light exposure as well as restricting all provided nutrition to during daytime hours.

Study Overview

Detailed Description

Several of the identified sleep disruptors in a pediatric intensive care environment may not be modifiable, including restricting feeding to daytime hours and providing normal daytime light exposure. This study aims to measure the feasibility of measuring sleep and circadian patterns in a PICU during routine care and during 2 focused sleep promotion interventions: timed daytime light exposure (DLE) and daytime feeding restriction (DFR). The overall objective of this study is to test the hypothesis that, with multi-disciplinary efforts, providing chronotherapeutic care will be feasible and that reliably measuring sleep patterns and the CR of critically ill children with timed salivary melatonin assays and actigraphy is possible.

Study Type

Interventional

Enrollment (Estimated)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • New York
      • Buffalo, New York, United States, 14203
        • Recruiting
        • John R. Oishei Children's Hospital
        • Contact:
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Child age 3 to 6 years old on the day of PICU admission
  2. English-speaking parent at the bedside
  3. Child expected to remain in the PICU over 24 to 48 hours

Exclusion Criteria:

  1. Child is in end-of-life care
  2. The child is receiving neuromuscular blockade for any reason
  3. Caregiver or parent not at the bedside

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: Phase 1: standard of care
10 children will be enrolled in the first phase related to determining if using actigraphy and timed saliva melatonin samples can be a feasible way to measure the sleep and circadian rhythm of critically ill children aged 3 to 6 years old while they receive routine critical care.
Experimental: Phase 2: Daytime light exposure
10 children will undergo the same sleep monitoring and salivary melatonin sampling as phase 1 while receiving timed exposure to a light box of 10,000 lux within 3 feet of their hospital bed for PICU days #2, 3 and 4.
Participants will be exposed to a 10,000 lux light source within 3 feet of their face/eyes to promote the natural circadian rhythm for 2-3 hours from 10am to 12/1pm depending on their nap time at home
Other Names:
  • Light therapy
Experimental: Phase 3: Daytime restricted feeding
10 children will undergo the same sleep monitoring and salivary melatonin sampling as phase 1 while attempting to limit all nutrition (parental or enteral) to being provided during the normal hours that the child is awake at home on PICU days #2, 3, 4.
Participant's nutrition, parenteral or enteral, will be restricted to the hours when they are normally awake at home.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Feasibility of monitoring the sleep and circadian rhythm of critically ill children
Time Frame: PICU Day 1 through 4
The number of days that reliable sleep and CR data are obtained using an actigraph and serial salivary melatonin assays
PICU Day 1 through 4

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Feasibility of providing daytime light exposure
Time Frame: PICU Day 2 through 4
Feasibility will be defined by the percentage of days when DLE was implemented and the average hours of DLE provided using a bedside DLE log
PICU Day 2 through 4
Feasibility of restricting nutrition to daytime hours
Time Frame: PICU Day 2 through 4
. The feasibility of daytime restricted feeding will be determined by the percentage of enteral or parenteral nutrition that was provided on each study day outside of the child's daytime feeding period determined by the Intake and Output records in the EMR
PICU Day 2 through 4

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 6, 2024

Primary Completion (Estimated)

December 30, 2026

Study Completion (Estimated)

January 1, 2027

Study Registration Dates

First Submitted

July 11, 2024

First Submitted That Met QC Criteria

July 11, 2024

First Posted (Actual)

July 17, 2024

Study Record Updates

Last Update Posted (Actual)

March 23, 2026

Last Update Submitted That Met QC Criteria

March 18, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Our institution has no current ability to create de-identified data sets available to share at this time, but this could change by study completion.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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