Validation of Lithuanian mental health assessment scales

Validation of the Lithuanian Version of the Brief Negative Symptoms Scale, Calgary Depression Scale for Schizophrenia, and the Schizophrenia Cognition Rating Scale

Observational Lithuanian University of Health Sciences · NCT06278532

This study is testing new Lithuanian mental health scales to see if they accurately measure symptoms of schizophrenia in adults aged 18 to 65.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorLithuanian University of Health Sciences Academic / other
Locations2 sites (Kaunas and 1 other locations)
Trial IDNCT06278532 on ClinicalTrials.gov

What this trial studies

This observational study aims to validate the Lithuanian versions of the Brief Negative Symptoms Scale, Calgary Depression Scale for Schizophrenia, and Schizophrenia Cognition Rating Scale. Participants aged 18 to 65 with specific schizophrenia diagnoses will be evaluated using these scales alongside established measures like the Positive and Negative Symptoms Scale and the Montreal Cognitive Assessment. The study focuses on assessing the convergent and discriminant validity of these scales to ensure they accurately reflect the symptoms of schizophrenia in the Lithuanian population.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 to 65 with a diagnosis of schizophrenia or related disorders.

Not a fit: Patients with comorbid diagnoses of mental retardation or substance use disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the accuracy of mental health assessments for schizophrenia in Lithuania, leading to better patient care.

How similar studies have performed: While similar validation studies have been conducted, this specific validation for the Lithuanian population is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* age 18 - 65 years old;
* Diagnosis of F20, F25 or F21 according to ICD-10;
* Signed informed consent form.

Exclusion Criteria:

* Age younger than 18 or older than 65 years old;
* Did not sign the informed consent form;
* Legally inactive person
* Patients with a comorbid or primary diagnosis of mental retardation according to ICD-10 (F70 - F79);
* Patients with a comorbid or primary diagnosis of mental and behavioural disorders due to psychoactive substance use (F10 - F19)
* Patients with a comorbid of primary diagnosis of organic, including symptomatic, mental disorders (F00 - F09)

Where this trial is running

Kaunas and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions SchizophreniaNegative Symptoms in SchizophreniaDepressive Symptoms Due to Primary Psychotic DisorderCognitive DeficitSchizophrenia, Negative symptoms, Depressive symptoms of Schizophrenia, Cognitive deficits of Schizophrenia
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.