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Enrolling by invitationNCT06677502Updated Dec 31, 2024

Cerebrolysin in Critically Ill Patients With Delirium

An interventional study of Cerebrolysin and Saline Solution - IV in Cognitive Impairment, sponsored by Medical University of Lublin. Enrolling by invitation at 1 site in Poland. Open to participants aged 18 Years to 100 Years. Per ClinicalTrials.gov, last updated 2024-12-31.

Sponsored by Medical University of Lublin · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2025, 1 year 4 months ago, but the record still lists the study as enrolling by invitation.
  • Registered 8 months after the study started (first participant enrolled Jan 2024, registered Sep 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
500
Allocation
Randomized
Ages
18 Years to 100 Years
Sex
All
01

Study summary

Delirium is a severe problem in critically ill patients, and it is associated with increased morbidity, mortality, and extended stay in hospital. The pathophysiology of delirium is multifactorial and still poorly recognized. Several authors proposed different pathomechanisms of delirium. The most likely of these are a metabolic response to cerebral hypoxia/hyperoxia, oxidative stress with excessive reactive oxygen species production, neuroinflammation following general inflammatory response, disorders in neurotransmitters, especially impaired cholinergic and dopaminergic transmissions and dysregulation of tryptophan metabolisms including kynurenine and serotonin/melatonin pathways. The multifactorial pathomechanism of delirium significantly reduces targeted therapy. Due to cerebrolysin properties, it seems reasonable to conclude that this substance is effective in the prevention and treatment of delirium in critically ill patients. Cerebrolysin is commonly used in neurologic patients treated for dementia and Alzheimer's disease. It possesses antioxidative properties, which reduce the severity of post-ischaemic neuronal dysfunction and improve neuronal plasticity. It also increases acetylcholinesterase and butyrylcholinesterase in a dose-dependent manner, improving neuronal plasticity.

Additionally, cerebrolysin reduces neuroinflammation and neuronal cell apoptosis by activating toll-like receptor pathways. These properties closely correspond to the pathomechanism of delirium.

Therefore, the aim of this study is to analyze the effectiveness of treatment with Cerebrolysin in critically ill patients with delirium.

This study enrolls adult critically ill patients. Prior to delirium detection, the Richmond Agitation-Sedation Scale (RASS) is used to assess the level of consciousness. Patients with RASS-4 or -5 were excluded from the analysis, as these disorders of consciousness preclude the determination of the degree of delirium, which is a requisite component of the study. Delirium is detected by the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) and the Intensive Care Delirium Screening Checklist (ICDSC). Additionally, the Montreal Cognitive Assessment Scale is used to detect mild cognitive impairment. The primary endpoint of this study is an analysis of the prevalence and severity of delirium symptoms. The secondary endpoint is an analysis of the duration of delirium.

Read the detailed description

This is an observational, interventional study. Adult critically ill patients treated with mechanical ventilation due to acute respiratory insufficiency complicating sepsis, septic shock, pneumonia, acute respiratory distress syndrome (ARDS) and polytrauma patients without traumatic brain injury are enrolled to this study. All patients should be treated in accordance with the most up-to date recommendations for the specific disease. None of the patients should be treated with neuroprotective medication before the diagnosis of delirium. Patients are randomized into two groups: CBL - patients treated with cerebrolysin and K - control patients treated without cerebrolysin. Cerebrolysin is administered in a daily dose of 50ml, dissolved in 0.9% NaCl. This mixture is infused for one hour. The treatment is initiated when the delirium is detected and continued for seven consecutive days.

The diagnosis of delirium is based on four principal criteria of the CAM-ICU test: 1/ Sudden onset of disturbance, 2/ Lack of focus of attention, 3/ Altered state of consciousness, and 4/ Disorganised thinking. Of these, criterion feature 2 is regarded as the most crucial in establishing a diagnosis of delirium.

The ICDSC method takes into account eight criteria which include: The ICDSC method considers eight criteria that include: 1/ any disturbance of consciousness (RASS other than 0), 2/ attention deficit disorder, 3/ disorientation, 4/ hallucinations, 5/ psychomotor agitation or retardation, 6/ speech or mood disturbances, 7/ disturbance of sleep-wake cycle, 8/ diurnal variability of symptoms. One point is added for each criterion. A score of 4 points or higher indicates a diagnosis of full-blown delirium, while a score of 1 to 3 points indicates subclinical delirium.

The initial detection of delirium using the CAM-ICU and ICDSC scales is conducted one to three days after the cessation of sedative infusion when the patient's sedation level reaches 3 on the RASS scale. Subsequent follow-up analysis is performed on days 7-8 after the diagnosis of delirium.

The MoCA test is performed in the days 7-8. The MoCA test is assessed using the Geriatric Assessment Tool Kit (https://geriatrictoolkit.missouri.edu) with the following points: 1/ Short term memory, 2/ Visuospatial abilities, 3/ Executive functions, 4/ attention and concentration, 5/ working memory, 6/ language, 7/ Orientation to time and place. A score of 24 points or less is the cut-off for mild cognitive impairment, while 19 points or less for dementia diagnosis.

02

Conditions studied

  • Cognitive Impairment

Keywords

  • delirium
  • critically ill
  • treatment
  • Cerebrolysin
03

In context

Cognitive Dysfunction

3,872 studies on the registry are indexed under Cognitive Dysfunction; 1,119 are open to participants now.

This study's planned enrollment of 500 is above the median of 64 across 2,794 interventional studies indexed under Cognitive Dysfunction.

Browse Cognitive Dysfunction studies →

Lead sponsor

Medical University of Lublin is the lead sponsor of 62 studies on the registry; 11 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • age > 18,
  • symptoms of delirium,
  • critical illness treated in Intensive Care Unit

Exclusion criteria

Exclusion Criteria:

  • pregnancy
  • traumatic brain injury,
  • neuroinflammatory diseases
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
500 participants (estimated)

Study arms

  • Experimental
    Cerebrolysin arm.

    Patients in group CER received Cerebrolysin infusion at the dose of 50 mL solved in 0.9% NaCl for seven consecutive days, after delirium diagnose.

    Drug: Cerebrolysin

  • Placebo comparator
    Control arm.

    Patients in group K (control) received 0.9% NaCl for seven consecutive days.

    Other: Saline Solution - IV

Interventions

  • Patients were randomized into two groups: CBL - patients treated with cerebrolysin at the daily dose of 50 mL, and K - control patients treated without cerebrolysin. Cerebrolysin was administrated intravenously on the day the delirium was detected and then for seven consecutive days.

  • OtherSaline Solution - IV

    Patients enrolled in group K received the infusion of 0.9% Saline solution at a volume of 250 mL.

06

What researchers measure

Primary outcomes

  1. CAM-ICU test

    Cerebrolysin, 50 mL daily administered intravenously for seven consecutive days, reduces or alleviates the severity of delirium detected by the CAM-ICU test.

    Time frame: seven days

  2. ICDSC test

    Cerebrolysin, 50 mL daily administered intravenously for seven consecutive days, reduces or alleviates the severity of delirium detected by the ICDSC test.

    Time frame: seven days

Secondary outcomes

  1. MoCA test

    Cerebrolysin infusion at the dose of 50 mL daily administrated intravenously reduces or alleviates the severity of cognitive impairment detected by the MoCA test.

    Time frame: seven days

07

Study locations

1 site
  • First Department of Anaesthesiology and Intensive Therapy Medical University of Lublin
    Lubin, Lublin 20-090, Poland
08

References and documents

Publications

  • Nakanishi N, Liu K, Kawauchi A, Okamura M, Tanaka K, Katayama S, Mitani Y, Ota K, Taito S, Fudeyasu K, Masuka Y, Yoshihiro S, Utsumi S, Nishikimi M, Masuda M, Iida Y, Kawai Y, Hatakeyama J, Hifumi T, Unoki T, Kawakami D, Obata K, Katsukawa H, Sumita H, Morisawa T, Takahashi M, Tsuboi N, Kozu R, Takaki S, Haruna J, Fujinami Y, Nosaka N, Miyamoto K, Nakamura K, Kondo Y, Inoue S, Nishida O. Instruments to assess post-intensive care syndrome assessment: a scoping review and modified Delphi method study. Crit Care. 2023 Nov 7;27(1):430. doi: 10.1186/s13054-023-04681-6. PubMed 37936249 ↗
  • Smith HA, Gangopadhyay M, Goben CM, Jacobowski NL, Chestnut MH, Savage S, Rutherford MT, Denton D, Thompson JL, Chandrasekhar R, Acton M, Newman J, Noori HP, Terrell MK, Williams SR, Griffith K, Cooper TJ, Ely EW, Fuchs DC, Pandharipande PP. The Preschool Confusion Assessment Method for the ICU: Valid and Reliable Delirium Monitoring for Critically Ill Infants and Children. Crit Care Med. 2016 Mar;44(3):592-600. doi: 10.1097/CCM.0000000000001428. PubMed 26565631 ↗
  • Landoure G, Sullivan JM, Johnson JO, Munns CH, Shi Y, Diallo O, Gibbs JR, Gaudet R, Ludlow CL, Fischbeck KH, Traynor BJ, Burnett BG, Sumner CJ. Exome sequencing identifies a novel TRPV4 mutation in a CMT2C family. Neurology. 2012 Jul 10;79(2):192-4. doi: 10.1212/WNL.0b013e31825f04b2. Epub 2012 Jun 6. No abstract available. PubMed 22675077 ↗
  • Flores IO, Trevino S, Diaz A. Neurotrophic fragments as therapeutic alternatives to ameliorate brain aging. Neural Regen Res. 2023 Jan;18(1):51-56. doi: 10.4103/1673-5374.331867. PubMed 35799508 ↗
  • Hoel H, Heggelund L, Reikvam DH, Stiksrud B, Ueland T, Michelsen AE, Otterdal K, Muller KE, Lind A, Muller F, Dudman S, Aukrust P, Dyrhol-Riise AM, Holter JC, Troseid M. Elevated markers of gut leakage and inflammasome activation in COVID-19 patients with cardiac involvement. J Intern Med. 2021 Apr;289(4):523-531. doi: 10.1111/joim.13178. Epub 2020 Oct 8. PubMed 32976665 ↗
  • Sharma S, Raj K, Singh S. Protective effects of cerebrolysin against chemotherapy (carmustine) induced cognitive impairment in Albino mice. Drug Chem Toxicol. 2022 Nov;45(6):2769-2779. doi: 10.1080/01480545.2021.1991195. Epub 2021 Oct 21. PubMed 34674598 ↗
  • Liu Z, Hu M, Lu P, Wang H, Qi Q, Xu J, Xiao Y, Fan M, Jia Y, Zhang D. Cerebrolysin alleviates cognitive deficits induced by chronic cerebral hypoperfusion by increasing the levels of plasticity-related proteins and decreasing the levels of apoptosis-related proteins in the rat hippocampus. Neurosci Lett. 2017 Jun 9;651:72-78. doi: 10.1016/j.neulet.2017.04.022. Epub 2017 Apr 27. PubMed 28458021 ↗
  • Kotfis K, Ely EW, Shehabi Y. Intensive care unit delirium-a decade of learning. Lancet Respir Med. 2023 Jul;11(7):584-586. doi: 10.1016/S2213-2600(23)00222-9. No abstract available. PubMed 37414511 ↗
  • Ottens TH, Hermes C, Page V, Oldham M, Arora R, Bienvenu OJ 3rd, van den Boogaard M, Caplan G, Devlin JW, Friedrich ME, van Gool WA, Hanison J, Hansen HC, Inouye SK, Kamholz B, Kotfis K, Maas MB, MacLullich AMJ, Marcantonio ER, Morandi A, van Munster BC, Muller-Werdan U, Negro A, Neufeld KJ, Nydahl P, Oh ES, Pandharipande P, Radtke FM, Raedt S, Rosenthal LJ, Sanders R, Spies CD, Vardy ERLC, Wijdicks EF, Slooter AJC. The Delphi Delirium Management Algorithms. A practical tool for clinicians, the result of a modified Delphi expert consensus approach. Delirium (Bielef). 2024;2024:10.56392/001c.90652. doi: 10.56392/001c.90652. Epub 2024 Jan 12. PubMed 38348284 ↗
  • Kotfis K, Maj P, Szylinska A, Pankowiak M, Reszka E, Ely EW, Marra A. The spectrum of psychological disorders in family members of patients suffering from delirium associated with critical illness: a prospective, observational study. Sci Rep. 2024 Feb 24;14(1):4562. doi: 10.1038/s41598-024-53968-3. PubMed 38402273 ↗
  • Dabrowski W, Siwicka-Gieroba D, Gasinska-Blotniak M, Zaid S, Jezierska M, Pakulski C, Williams Roberson S, Wesley Ely E, Kotfis K. Pathomechanisms of Non-Traumatic Acute Brain Injury in Critically Ill Patients. Medicina (Kaunas). 2020 Sep 13;56(9):469. doi: 10.3390/medicina56090469. PubMed 32933176 ↗
  • Cui S, Chen N, Yang M, Guo J, Zhou M, Zhu C, He L. Cerebrolysin for vascular dementia. Cochrane Database Syst Rev. 2019 Nov 11;2019(11):CD008900. doi: 10.1002/14651858.CD008900.pub3. PubMed 31710397 ↗
  • Seidl LF, Aigner L. Comparing the biological activity and composition of Cerebrolysin with other peptide preparations. J Med Life. 2024 Jan;17(1):24-27. doi: 10.25122/jml-2024-0129. PubMed 38737662 ↗
  • Ulderich Williams SC, Qaddoumi AI, Meghreblian JT, McBride ME, King SA, Elahi MA, Tuggle D, Heidel RE, Smith LM. Incidence and Risk Factors for ICU-Associated Delirium in the Alert Geriatric Trauma Population. Am Surg. 2024 Jul;90(7):1866-1871. doi: 10.1177/00031348241241707. Epub 2024 Mar 23. PubMed 38520278 ↗
  • Duprey MS, Devlin JW, van der Hoeven JG, Pickkers P, Briesacher BA, Saczynski JS, Griffith JL, van den Boogaard M. Association Between Incident Delirium Treatment With Haloperidol and Mortality in Critically Ill Adults. Crit Care Med. 2021 Aug 1;49(8):1303-1311. doi: 10.1097/CCM.0000000000004976. PubMed 33861548 ↗
  • Lu W, Zhu Z, Shi D, Li X, Luo J, Liao X. Cerebrolysin alleviates early brain injury after traumatic brain injury by inhibiting neuroinflammation and apoptosis via TLR signaling pathway. Acta Cir Bras. 2022 Sep 5;37(6):e370605. doi: 10.1590/acb370605. eCollection 2022. PubMed 36074398 ↗
  • Kotfis K, Marra A, Ely EW. ICU delirium - a diagnostic and therapeutic challenge in the intensive care unit. Anaesthesiol Intensive Ther. 2018;50(2):160-167. doi: 10.5603/AIT.a2018.0011. Epub 2018 Jun 8. PubMed 29882581 ↗
  • Eman G, Marsh A, Gong MN, Hope AA. Utility of Screening for Cognitive Impairment at Hospital Discharge in Adult Survivors of Critical Illness. Am J Crit Care. 2022 Jul 1;31(4):306-314. doi: 10.4037/ajcc2022447. PubMed 35773197 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 31, 2024, 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
NCT06677502
Lead sponsor
Medical University of Lublin
Responsible party
Wojciech Dąbrowski (Prof. MD, PhD, Medical University of Lublin) — Principal investigator
First posted
Nov 6, 2024
Start date
Jan 1, 2024
Primary completion
Jun 30, 2025 (estimated)
Completion
Dec 31, 2025 (estimated)
Last update
Dec 31, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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