NCT06192446

Brief Summary

Breast cancer is the most common type of cancer and the leading cause of cancer death in women. Adjuvant endocrine therapy (AET) reduces the risk of disease recurrence and mortality in women with hormone-dependent breast cancer. This cross-sectional study aims to investigate adherence to AET and identify factors associated with adherence in the Republic of Croatia. The level of adherence, beliefs about medicines, and quality of life with AET will be investigated with validated instruments in the form of an anonymous survey. Given the available data on suboptimal adherence to AET in Europe and globally, it is clear that there is a need for investigating adherence in Croatia which hasn't been done so far. Each country, population, and health system has its own characteristics, and understanding the experience of using AET and identifying associated psychosocial factors could help in developing specific interventions supporting women and improving AET adherence.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2021

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 20, 2021

Completed
2.2 years until next milestone

First Submitted

Initial submission to the registry

December 7, 2023

Completed
29 days until next milestone

First Posted

Study publicly available on registry

January 5, 2024

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 20, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 20, 2024

Completed
Last Updated

January 11, 2024

Status Verified

January 1, 2024

Enrollment Period

3 years

First QC Date

December 7, 2023

Last Update Submit

January 9, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Patient adherence to adjuvant endocrine therapy assessment: Measurement of the level of adherence to adjuvant endocrine therapy

    The overall aim of the study is to determine the proportion of women adherent to oral adjuvant endocrine therapy (AEL) after the diagnosis of breast cancer in Croatia, as well as to investigate the association between AEL adherence, medication beliefs, quality of life, sociodemographic, and clinical factors.

    Day 1.

Secondary Outcomes (2)

  • Beliefs About Medicines

    Day 1.

  • Prevalence of Treatment-Emergent Adverse Events as assessed by FACT-ES

    Day 1.

Study Arms (1)

Women with hormone-sensitive early breast cancer

Women older than 18 years of age who have suffered from hormonally dependent breast cancer stages 0-III (from "in situ" to locally advanced breast cancer) according to the American Joint Committee on Cancer (AJCC) classification and have been undergoing adjuvant endocrine therapy for more than 3 months.

Drug: Survey using a questionnaire.

Interventions

An observational study conducted in a cross-sectional manner using a questionnaire.

Women with hormone-sensitive early breast cancer

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

The study population comprises women aged 18 and older who have been diagnosed with hormone-dependent breast cancer at stages 0-III, as per the American Joint Committee on Cancer (AJCC) classification. These women have been receiving adjuvant endocrine therapy for a duration exceeding 3 months.

You may qualify if:

  • women older than 18 years of age
  • clinical diagnosis of hormone receptor positive early breast cancer stages 0-III according to the American Joint Committee on Cancer (AJCC) classification
  • prescribed with adjuvant endocrine therapy for more than 3 months

You may not qualify if:

  • advanced metastatic breast cancer, stage IV according to the American Joint Committee on Cancer (AJCC) classification
  • other life-threatening illnesses
  • mental disorders
  • behavioral disorders caused by the use of psychoactive substances
  • behavioral syndromes related to physiological disorders and physical factors
  • cognitive impairment
  • organic and symptomatic mental disorder
  • schizophrenia
  • disorders similar to schizophrenia
  • delusional disorders
  • personality disorders
  • behavior disorders
  • mental retardation
  • psychological development disorders
  • unspecified mental disorders
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Zagreb Faculty of Pharmacy and Biochemistry

Zagreb, 10000, Croatia

RECRUITING

MeSH Terms

Conditions

Treatment Adherence and Compliance

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Central Study Contacts

Faculty of Pharmacy and Biochemistry

CONTACT

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate professor at the Center for Applied Pharmacy.

Study Record Dates

First Submitted

December 7, 2023

First Posted

January 5, 2024

Study Start

September 20, 2021

Primary Completion

September 20, 2024

Study Completion

September 20, 2024

Last Updated

January 11, 2024

Record last verified: 2024-01

Locations