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Construct Validation of the BIOTICA Questionnaire

Construct Validation of the BIOTICA Questionnaire (Barriers to Optimal Medication Adherence With Oral Antibiotics)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04286230
Acronym
BIOTICA
Enrollment
85
Registered
2020-02-26
Start date
2020-02-20
Completion date
2021-07-31
Last updated
2021-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infectious Diseases and Manifestations

Keywords

Adherence, Oral antibiotics, Electronic monitoring

Brief summary

Based on barriers identified in a systematic literature search, a self-report questionnaire called BIOTICA has been developed by the research team to assess medication adherence barriers to oral AB. The purpose of the BIOTICA-questionnaire is to detect individual barriers that prevent the optimal intake of oral AB and thus, lead to inadequate adherence or persistence to the regimen. A study is now needed to establish construct validity. Correlation between the answers to the BIOTICA-questionnaire and the electronically monitored intake of the oral AB will be analyzed in the general population.

Detailed description

Global consumption of oral antibiotics (AB) is increasing, with 80% of all prescriptions in Europe stemming from primary care, mostly against respiratory tract infections. Adequate intake behavior (i.e. adherence) to oral AB is vital to prevent therapeutic failure, to reduce the risk of microbial resistance, to reduce health care consumption, medication waste and environmental pollution. However, non-adherence among oral AB users reaches rates of 21%-38% during an AB treatment course. To improve medication adherence, understanding patient barriers to treatment is crucial. Based on barriers identified in a systematic literature search, a self-report questionnaire called BIOTICA has been developed by the research team to assess medication adherence barriers to oral AB. The purpose of the BIOTICA-questionnaire is to detect individual barriers that prevent the optimal intake of oral AB and thus, lead to inadequate adherence or persistence to the regimen. A study is now needed to establish construct validity (also called criterion, convergent or concurrent validity) that is, to generate evidence that the questionnaire measures what it is intended to. Thus, the instrument under investigation (i.e. BIOTICA-questionnaire) will be distributed at the same time as the targeted attribute (i.e. adherence to oral AB) will be electronically monitored in the general population. The correlation between the two measurements will be analyzed.

Interventions

BEHAVIORALAdherence to oral antibiotics assessed by Questionnaire

The purpose of the BIOTICA-questionnaire is to detect individual barriers preventing the optimal intake of oral antibiotics and thus, leading to inadequate adherence or persistence to the regimen.

BEHAVIORALPersistence to oral antibiotics assessed by Questionnaire

The purpose of the BIOTICA-questionnaire is to detect individual barriers preventing the optimal intake of oral antibiotics and thus, leading to inadequate adherence or persistence to the regimen.

Sponsors

University Hospital, Basel, Switzerland
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* is ≥ 18 years * has a prescription for an oral AB for 3-30 days * self-manages medication * is able to read and understand the German language * signs the Informed Consent Form (ICF) * accepts to record the intake of oral AB with the electronic device Time4Med™

Exclusion criteria

* is cognitively impaired * is currently pregnant or actively trying to get pregnant

Design outcomes

Primary

MeasureTime frameDescription
Adherence [%] to oral antibioticsmaximum 30 daysThe primary endpoint is the adherence \[%\] to oral antibiotics calculated as correct dosing days from the electronic adherence data

Secondary

MeasureTime frameDescription
Persistence [%] to oral antibioticsmaximum 30 daysThe secondary endpoint is persistence \[%\] to oral antibiotics defined as the time until medication discontinuation and calculated as the percentage of days with at least one intake

Countries

Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026