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Quality of Life, Safety and Compliance of Patients Using Monotherapy or Combinatorial Therapy With Quetiapine for Treatment of Schizophrenia or Bipolar Affective Disorder

2026년 10월 9일 업데이트: Bosnalijek D.D

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)

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

연구 개요

연구 유형

관찰

등록 (추정된)

500

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 연락처 백업

연구 장소

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

18년 (성인, 고령자)

건강한 자원 봉사자를 받아들입니다

아니

연구 대상 성별

모두

샘플링 방법

비확률 샘플

연구 인구

Schizophrenia or bipolar affective disorder patients of both sexes aged 18 to 65 years.

설명

Inclusion Criteria:

  • 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.

Exclusion Criteria:

  • Persons younger than 18 years and older than 65 years
  • Hypersensitivity to the components of the drug
  • Positive history of angioneurotic edema
  • Pregnancy
  • Breastfeeding
  • Simultaneous use with cytochrome P450 3A4 inhibitors, such as HIV-protease inhibitors, azole antifungals, erythromycin, clarithromycin and nefazodone
  • Patients who are planning to become pregnant in the near future
  • 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 serious adverse events requiring therapy discontinuation
  • Occurence of pregnancy
  • Development of another disease that affects the course of the study

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 관찰 모델: COHORT
  • 시간 관점: PROSPECTIVE

코호트 및 개입

그룹/코호트
개입 / 치료
Newly diagnosed patients

Newly diagnosed patients with a diagnosis of schizophrenia or bipolar affective disorder

Monotherapy with the drug quetiapine

Combined antipsychotic therapy with quetiapine and aripiprazole

Combined antipsychotic therapy with quetiapine and haloperidol

Previously diagnosed patients

Patients with a previous diagnosis of schizophrenia or bipolar affective disorder

Combined antipsychotic therapy with quetiapine and aripiprazole

Combined antipsychotic therapy with quetiapine and haloperidol

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Measurement of quality of life using the World Health Organization Quality of Life questionnaire (WHOQOL)-BREF
기간: 12 months from inclusion into the study (baseline)

Evaluation of the quality of life of patients during treatment for schizophrenia or bipolar affective disorder using monotherapy with the drug quetiapine or combination therapy with the drug quetiapine and another antipsychotic (aripiprazole or haloperidol). World Health Organization Quality of Life questionnaire (WHOQOL)-BREF will be used. It consists of 26 items that evaluate an individual's perception of their quality of life and consists of four domains: physical health (e.g., pain, energy, sleep, mobility, activities of daily living, work capacity); psychological health (e.g., positive and negative feelings, self-esteem, body image, cognition, spirituality); social relationships (e.g., personal relationships and social support) and environment. Domain scores are calculated according to the WHO scoring guidelines and can be transformed to a 0-100 scale, where higher scores represent a better quality of life.

12 months from inclusion into the study (baseline)

2차 결과 측정

결과 측정
측정값 설명
기간
Safety assessment through incidence of possible adverse drug events and evaluation of the association between the administration of the drug and the occurrence of an adverse reaction
기간: 12 months from baseline

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

12 months from baseline
Therapy adherence using the Medication Adherence Rating Scale (MARS)
기간: 12 months from baseline

Medication Adherence Rating Scale (MARS), a validated self-report questionnaire designed to evaluate patients' adherence to prescribed medication regimens. The instrument was originally developed for patients receiving long-term pharmacological treatment and has been widely used in studies of psychiatric and chronic medical conditions. The MARS consists of 10 items that assess both medication-taking behavior and patients' attitudes toward medication, including forgetfulness, intentional omission of doses, discontinuation of treatment when feeling better or worse, and beliefs regarding the effects of medication. Responses are provided in a dichotomous (Yes/No) format. Individual item scores are summed to obtain a total score ranging from 0 to 10, with higher scores indicating better medication adherence. The scale enables the identification of both intentional and unintentional non-adherence and provides insight into factors affecting treatment adherence.

12 months from baseline

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

수사관

  • 수석 연구원: Gorana Sulejmanpašić, PhD, Clinic of Psychiatry, University Clinical Center of Sarajevo
  • 수석 연구원: Amra Memić Serdarević, PhD, Clinic of Psychiatry, University Clinical Center of Sarajevo

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (실제)

2025년 10월 30일

기본 완료 (추정된)

2027년 4월 1일

연구 완료 (추정된)

2027년 5월 1일

연구 등록 날짜

최초 제출

2026년 9월 29일

QC 기준을 충족하는 최초 제출

2026년 9월 29일

처음 게시됨 (실제)

2026년 10월 5일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 10월 15일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 10월 9일

마지막으로 확인됨

2026년 10월 1일

추가 정보

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

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