NCT07858565Recruiting
Quality of Life, Safety and Compliance of Patients Using Monotherapy or Combinatorial Therapy With Quetiapine for Treatment of Schizophrenia or Bipolar Affective Disorder
Study of Quality of Life, Safety and Compliance During Treatment of Schizophrenia or Bipolar Affective Disorder, in Patients Using the Drug Kvepin® (Quetiapine) as Monotherapy or Combination Therapy With Other Antipsychotics (Ispitivanje Kvalitete života, Sigurnosti i Saradljivosti u Toku liječenja Shizofrenije Ili Bipolarnog Afektivnog poremećaja, Kod Pacijenata Koji Koriste Lijek Kvepin® (Kvetiapin) Kao Monoterapiju Ili Kombinovanu Terapiju sa Drugim Antipsihoticima)
Source: ClinicalTrials.gov · Last updated 15 Oct 2026
Brief summary (registry, in English)
The goal of this observational study is to evaluate the quality of life, drug safety and therapy compliance of schizophrenia or bipolar affective disorder patients during the treatment with quetiapine monotherapy or in combination with another antipsychotic/antipsychotics. The main outcome measures are: * quality of life using the World Health Organization Quality of Life questionnaire (WHOQOL) * safety through the monitoring of the incidence of possible adverse drug events by the researcher, with the assessment of the association between the administration of the drug and the occurrence of an adverse reaction * therapy adherence using the Medication Adherence Rating Scale (MARS). The subjects will be divided into two groups: 1. Newly diagnosed patients with a diagnosis of schizophrenia or bipolar affective disorder whose individual therapeutic approach, based on the clinical assessment of the research physician, includes one of the following therapies: 1. monotherapy with the drug quetiapine 2. combined antipsychotic therapy with quetiapine and aripiprazole 3. combined antipsychotic therapy with quetiapine and haloperidol 2. Patients with a diagnosis of schizophrenia or bipolar affective disorder who are on therapy with one of the antipsychotics (aripiprazole or haloperidol), and who, based on the clinical assessment of the investigator, require adjunctive quetiapine therapy. This group will include two subgroups of patients: 1. combined antipsychotic therapy with quetiapine and aripiprazole 2. combined antipsychotic therapy with quetiapine and haloperidol Recruitment of subjects will be carried out by physicians/researchers based on the patient's history and diagnosis. The diagnosis of schizophrenia or bipolar affective disorder will be based on the standard diagnostic criteria in medical practice (validated measurement scales in psychiatry - Young's Mania Scale, Beck Depression Scale and PANNS Schizophrenia Scale). Patients will have four visits to physician/researcher: 1. First visit - baseline at which patient will be included in the study 2. Second visit - 4 months after the baseline 3. Third visit - 8 months after the baseline 4. Fourth visit - 12 months after the baseline
- Status (registry)
- Recruiting
- Study type
- Observational
- Enrollment
- 500 (estimated)
- First submitted
- 29 Sept 2026
- Start date
- 30 Oct 2025
- Primary completion date
- Apr 2027
- Lead sponsor
- Bosnalijek D.D
- Diseases
- Schizophrenia, Bipolar disorder
- NCT number
- NCT07858565
What you commit to
- Study type: Observational
- Planned participants: 500
- From 30 Oct 2025 to the primary completion date, Apr 2027
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Development of serious adverse events requiring therapy discontinuation
Other illness
- Hypersensitivity to the components of the drug
- Positive history of angioneurotic edema
- Simultaneous use with cytochrome P450 3A4 inhibitors, such as HIV-protease inhibitors, azole antifungals, erythromycin, clarithromycin and nefazodone
- Diagnosed medical conditions that may constitute a contraindication for the use of the drug quetiapine
- Withdrawal Criteria:
- Deterioration of the underlying disease that requires therapy discontinuation
- Development of another disease that affects the course of the study
Age
- Persons younger than 18 years and older than 65 years
Other
- Pregnancy
- Breastfeeding
- Patients who are planning to become pregnant in the near future
- Occurence of pregnancy
Who the study is looking for
- Persons over 18 years of age and under 65 years of age.
- Schizophrenia or bipolar affective disorder established by the usual diagnostic criteria applied in a psychiatric clinic or hospital ward/unit within the clinic or outpatient.
- Patients who are treated as outpatients, inpatients or have been discharged from the clinic/hospital with a recommendation for quetiapine monotherapy or combination therapy of quetiapine with aripiprazole or haloperidol. Recommended by a specialist psychiatrist/neuropsychiatrist in clinical and hospital centers and through specialist-consultant outpatient clinics in Bosnia and Herzegovina.
Age in the registry: 18 years to 65 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Clinic of Psychiatry, University Clinical Center of Sarajevo Coordinator of this site? Confirm its status | Sarajevo | Bosnia and Herzegovina | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.