ISRCTN ISRCTN16781226
DOI https://doi.org/10.1186/ISRCTN16781226
Secondary identifying numbers VEGA 1/0183/24
Submission date
29/01/2025
Registration date
16/06/2025
Last edited
16/06/2025
Recruitment status
Recruiting
Overall study status
Ongoing
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
In 2021, there was a 72% increase in suicides among 15-19-year-olds in Slovakia. This study aims to understand the relationship between suicidal thoughts and attempts and psychiatric diagnoses in children. It will also explore the impact of COVID-19 on these issues and identify potential predictors of suicidal behavior.

Who can participate?
Children and adolescents aged 10-17 years with suicidal thoughts or a history of suicide attempts in the last 7 days, who are registered at the Department of Paediatric Psychiatry of the Faculty of Medicine of the Comenius University and the National Institute of Children’s Diseases in Bratislava. The control group will include 20 healthy volunteers not under psychiatric or psychological care.

What does the study involve?
Participants will fill out self-report questionnaires. An examiner will assess the severity of depressive symptoms and suicide risk using objective scales. Biological samples (blood, urine, hair) will be collected from both patients and healthy controls, processed using standard clinical methods, and stored at -80°C.

What are the possible benefits and risks of participating?
Participants may benefit from the detection of biomarkers not included in standard examinations. The only recorded risk is minor bruising from blood sample collection.

Where is the study run from?
The study will be conducted at the Department of Paediatric Psychiatry at Comenius University, Faculty of Medicine in Bratislava, and the National Institute of Children’s Diseases in Bratislava, Slovakia.

When is the study starting and how long is it expected to run for?
April 2024 to December 2027.

Who is funding the study?
The study is funded by the Grant Agency of the Ministry of Education, Science, Research, and Sport of the Slovak Republic and the Slovak Academy of Science.

Who is the main contact?
Dr Jana Trebatická, jana.trebaticka@fmed.uniba.sk

Contact information

Dr Jana Trebatická
Public, Scientific, Principal Investigator

Limbová 1
Bratislava
83340
Slovakia

ORCiD logoORCID ID 0000-0001-5111-4612
Phone +421 905560219
Email jana.trebaticka@fmed.uniba.sk

Study information

Study designSingle-center observational case-control study
Primary study designObservational
Secondary study designCase-control study
Study setting(s)Hospital
Study typeDiagnostic
Participant information sheet 46766 PIS informed consent in Slovak.pdf
Scientific titleSuicidality in children and adolescents, neurobiological parameters, and their mutual association.
Study acronymNeuroSui
Study objectives1. Determination of the prevalence of suicidal ideation and suicide attempts in children and adolescents hospitalized in pedopsychiatric inpatient wards concerning psychiatric diagnoses.
2. To determine neurobiological correlates with the focus on inflammatory markers (CRP, the neutrophil-to-lymphocyte ratio, fibrinogen, orosomucoid, neopterin), lipid profile (total cholesterol, LDLand HDLcholesterol, subfractions of HDL lipoproteins, cortisol, markers of oxidative and nitrosylation stresses (nitrotyrosine, lipoperoxides, 8isoprostanes, AOPP, activity of glutathione peroxidase, catalase, SOD, glutamyl cysteinyl ligase (GCL), proteins of Nrf2/Keap1/ARE signaling pathway and total plasma antioxidant capacity) in the child and adolescent patients with suicidal ideations and after suicide attempts compared to a control group of healthy children.
3. Determine the correlations between established neurobiological markers and psychopathological factors (incidence of suicidal ideation/suicide attempts, severity of depressive symptoms, presence of adverse life event) concerning age, gender, and diagnosis, and identify a potential predictive marker for use in clinical practice based on the results.
4. Investigate a potential relationship between overcoming a COVID-19 infection and the incidence of suicidal ideation and suicide attempts and neurobiological markers.
Ethics approval(s)

1. Approved 23/04/2024, Ethics Committee of the National Institute of Children’s Diseases and the Faculty of Medicine, Comenius University Bratislava (Limbová 1, Bratislava, 83340, Slovakia; +421 259371209; detska.klinika@nudch.eu), ref: EK4/1/2024

2. Approved 17/09/2024, Ethics Committee of the National Institute of Children’s Diseases and the Faculty of Medicine, Comenius University Bratislava (Limbová 1, Bratislava, 83340, Slovakia; +421 259371209; detska.klinika@nudch.eu), ref: EK9/2/2024

Health condition(s) or problem(s) studiedIncidence of suicide attempts in the last seven days, Incidence of suicidal ideations.
InterventionThe research group will consist of 60 patients who will be divided into two groups: patients with suicidal ideations (SI) and patients after suicide attempts (SA).
The enrolled patients will be asked to fill out the following scales: the self-report Symptom Checklist 90 (SCL90R), the Child Depression Inventory (CDI) self-report questionnaire, and the self-report Yale Vermont Adversity in Childhood Scale (Y-VACS-SR)
The examiner will investigate depressive symptoms severity using the Children's Depression Rating Scale-Revised (CDRS-R) and suicide risk using the Columbia Suicide Severity Rating Scale (C-SSRS).
Biological material (blood, urine, hair) of patients and healthy controls will be collected, processed using standard clinical biochemistry methods, and stored at -80° C.
Intervention typeOther
Primary outcome measure1. Prevalence of suicidal ideation is measured using the self-report Symptom Checklist 90 (SCL90R) at a single time point
2. Prevalence of suicide attempts is measured using the self-report Symptom Checklist 90 (SCL90R) at a single time point
3. Depressive symptoms severity is measured using the Children's Depression Rating Scale Revised (CDRSR) at a single time point
4. Suicide risk is measured using the Columbia Suicide Severity Rating Scale (CSSRS) at a single time point
5. Depressive symptoms in children and adolescents are measured using the Child Depression Inventory (CDI) self-report questionnaire at a single time point
6. Childhood adversity is measured using the self-report Yale Vermont Adversity in Childhood Scale (YVACSSR) at a single time point
7. Impact of COVID-19 on mental health is measured using the self-report COVID-19 Yorkshire Rehabilitation Scale (C19YRS) at a single time point
8. Mental health evaluation in healthy controls is measured using the Children's Depression Rating Scale Revised (CDRSR) at a single time point
Secondary outcome measures1. Total cholesterol is measured using standard methods in a commercial clinical laboratory at a single time point
2. LDL cholesterol is measured using standard methods in a commercial clinical laboratory at a single time point
3. HDL cholesterol is measured using standard methods in a commercial clinical laboratory at a single time point
4. ApoA is measured using standard methods in a commercial clinical laboratory at a single time point
5. ApoE is measured using standard methods in a commercial clinical laboratory at a single time point
6. hsCRP is measured using standard methods in a commercial clinical laboratory at a single time point
7. IL6 is measured using standard methods in a commercial clinical laboratory at a single time point
8. IL2 is measured using standard methods in a commercial clinical laboratory at a single time point
9. Fibrinogen is measured using standard methods in a commercial clinical laboratory at a single time point
10. Orosomucoid is measured using standard methods in a commercial clinical laboratory at a single time point
11. Neutrophil count is measured using standard methods in a commercial clinical laboratory at a single time point
12. Lymphocyte count is measured using standard methods in a commercial clinical laboratory at a single time point
13. Neutrophil to lymphocyte ratio is measured using standard methods in a commercial clinical laboratory at a single time point
14. LDL subfractions are measured using the Lipoprint system at a single time point
15. HDL subfractions are measured using the Lipoprint system at a single time point
16. BDNF is measured using Elisa kit at a single time point
17. Nrf2 is measured using Elisa kit at a single time point
18. Lipoperoxides are measured using spectrophotometry at a single time point
19. AOPP is measured using spectrophotometry at a single time point
20. Catalase activity is measured using spectrophotometry at a single time point
21. SOD activity is measured using kits in erythrocyte hemolysate at a single time point
22. GPx activity is measured using kits in erythrocyte hemolysate at a single time point
23. Total antioxidant capacity of plasma is measured using spectrophotometry at a single time point
24. GCL is measured using western blot (WB) at a single time point
25. Protein expression of antioxidant enzymes is measured using western blot (WB) at a single time point
26. Cortisol in hair is measured using commercial kits at a single time point
27. 8 isoprostanes in urine are measured using commercial kits at a single time point
28. Creatinine in urine is measured using commercial kits at a single time point
29. Signaling pathway proteins are measured using western blot (WB) at a single time point
30. Gene expression is measured using RT PCR at a single time point
31. Protein concentration is measured using the Western Blot method at a single time point
32. mRNA level is measured using the qRT-PCR method at a single time point
33. Lipoprotein subfractions are measured using the Lipoprint method at a single time point
Overall study start date23/04/2024
Completion date31/12/2027

Eligibility

Participant type(s)Healthy volunteer, Patient
Age groupChild
Lower age limit10 Years
Upper age limit17 Years
SexBoth
Target number of participants80
Key inclusion criteria1. Patients hospitalized at the Department of Paediatric Psychiatry of the Comenius University, Medical Faculty and the National Institute of Children's Diseases, age 10-17 years.
2. Signed informed consent by the legal guardian.
3. Verbal consent of the patient to be included in the project.
4. Presence of suicidal ideation and/or suicide attempts.
5. Children and adolescents are willing to provide blood, urine, and hair samples.
Key exclusion criteriaChronic somatic inflammatory and oncological disease
Date of first enrolment01/02/2025
Date of final enrolment30/06/2027

Locations

Countries of recruitment

  • Slovakia

Study participating centre

The National Institute of Children's Diseases
Limbová 1
Bratislava
83340
Slovakia

Sponsor information

Grant Agency of the Ministry of Education, science, research and sport of the Slovak Republík and the Slovak Academy of Science
Government

Stromová 1
Bratislava
81330
Slovakia

Phone +421 259 374 111
Email podatelna@minedu.sk
Website https://www.minedu.sk/vedecka-grantova-agentura-msvvam-sr-a-sav-vega/

Funders

Funder type

University/education

Univerzita Komenského v Bratislave
Government organisation / Local government
Alternative name(s)
Univerzita Komenského, Comenius University in Bratislava, Comenius University
Location
Slovakia

Results and Publications

Intention to publish date31/12/2027
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study will be available upon request after the project is completed from Jana Trebatická, jana.trebaticka@fmed.uniba.sk

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet in Slovak 12/02/2025 No Yes
Protocol file 12/02/2025 No No

Additional files

46766 Protocol.pdf
46766 PIS informed consent in Slovak.pdf
in Slovak

Editorial Notes

29/01/2025: Trial's existence confirmed by Ethics Committee of the National Institute of Children’s Diseases and the Faculty of Medicine, Comenius University Bratislava.