Actively Recruiting

Phase Not Applicable
Age: 18Years +
All Genders
NCT05807178

Stabilization of Circadian Rhythms in Delirious ICU Patients Through Light Intervention

Led by Charite University, Berlin, Germany · Updated on 2026-01-23

40

Participants Needed

2

Research Sites

88 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

The investigators will examine the effects of dynamic light therapy on circadian rhythms in delirious intensive care unit (ICU) patients. In a randomized controlled trial (RCT), they will investigate the effects of a specific light algorithm on rhythms of serum melatonin, clock gene expression, the proteome, and metabolome, compared to standard hospital lighting, supported by the data science algorithms to improve vital-based algorithms with light interventions.

CONDITIONS

Official Title

Stabilization of Circadian Rhythms in Delirious ICU Patients Through Light Intervention

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Patient capable of giving consent or has a legal caregiver/authorized representative if unable to consent
  • Male or female patients aged 18 years or older
  • Expected intensive care unit stay of 2 days or more
  • Positive delirium diagnosis during and up to 30 days after study inclusion (determined by CAM-ICU, at least once per shift)
Not Eligible

You will not qualify if you...

  • Participation in other clinical studies during the study period and 10 days before
  • Previous ICU treatment during the current hospital stay
  • Patients with psychiatric diseases
  • History of stroke with severe residual cognitive deficits
  • History of cardiopulmonary arrest or pulseless electric activity with resuscitation followed by therapeutic hypothermia during entire hospital stay
  • Amaurosis
  • History of sleep-related breathing disorders
  • History or suspicion of hypoxic brain damage
  • History or suspicion of elevated intracranial pressure in the 7 days before study inclusion
  • Patient refuses participation in any clinical trial via power of attorney or provision
  • Inability to obtain informed consent in time
  • History of photoallergic reactions or visually triggered seizures
  • Severe eye diseases such as retinopathy or glaucoma, or high sensitivity to bright light
  • Patients with liver cirrhosis
  • Patients with expected survival less than 24 hours
  • Optic neuritis within the last 3 months
  • Travel across two time zones within 3 months before screening
  • Women who are pregnant, breastfeeding, have a positive pregnancy test, or plan to become pregnant during the trial
  • Therapy-refractory blood coagulation disorder and inability to consent are exclusion criteria for muscle biopsy

AI-Screening

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Trial Site Locations

Total: 2 locations

1

Department of Anesthesiology and Intensive Care Medicine (CCM/CVK), Campus Charité Mitte

Berlin, Germany, 10117

Actively Recruiting

2

Department of Anesthesiology and Intensive Care Medicine (CCM/CVK), Campus Virchow Klinikum

Berlin, Germany, 13353

Actively Recruiting

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Research Team

C

Claudia Spies, MD, Prof.

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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