Smartphone App-assisted Short-term Antibiotic Therapy

Not Applicable

Completed

• Conditions: Infection, Bacterial
• Interventions: Other: Smartphone medication intake reminder + educational and motivational text messaging

• Registration Number: NCT06126900
• Lead Sponsor: University Hospital, Basel, Switzerland

Brief Summary

Outpatients with short-term antibiotic treatment should start and finish the treatment according to medical advise that is, the intake pattern (named adherence) should be regular. The research question is: Can a smartphone-based program including intake reminder and two text messages improve adherence to a short-term antibiotic treatment in ambulatory setting?

Participants will be asked to record every antibiotic intake in an app on their smartphone over the prescribed therapy duration and to note their symptoms once daily. One group will obtain reminder + text messages, and the control group will have no reminder + no text messages.

Detailed Description

This study is planned as a monocentric, cluster-randomized, double-blind, two-arm study in a primary care setting with outpatients newly prescribed co-amoxicillin for a short-term therapy. Participating community pharmacies will recruit patients entering with a prescription for co-amoxicillin and offer the service. Randomisation will take place on the pharmacy level via computer generated list of numbers (1: with intervention; 2: with no intervention). Pharmacists and participants will not know that the intervention is not the app itself, but rather the combination of a reminder and text messages (= double-blind). The intervention will consist of the use of a smartphone reminder (e.g. alarm clock or a reminder app; a list with suitable examples will be given and patients will choose one of them) and two personalized motivational and educational text messages that will be sent by the pharmacy during the treatment duration. The control group will have no reminder and no text messages. All participants will use a simplified version of the freely available medication management app TOM to record their medication intake (= adherence measurement method). Participants in both groups will obtain a consultation driven by their adherence report with the study team at the end of the treatment to discuss their individual adherence data, their symptom course and well-being. After that, patients will receive a link to an online survey where they will evaluate their satisfaction with the service and the smartphone application. Participating pharmacists will be interviewed by the study team regarding their experience and satisfaction after the end of the study.

Study Timeline

• Study First Submitted: 2023-10-17
• Study First Submitted QC: 2023-11-06
• Study First Posted: 2023-11-13
• Study Start: 2024-01-15
• Primary Completion: 2024-12-31
• Study Completion: 2024-12-31
• Status Verified: 2025-01
• Last Update Submitted: 2025-01-07
• Last Update Posted: 2025-01-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 34

Inclusion Criteria

• is min. 18 years old;
• is newly prescribed a co-amoxicillin treatment of 3-14 days;
• has symptoms that correspond to bacterial infection;
• accepts to use of one of the medication adherence application with reminder function from the provided list;
• accepts to use of the electronic monitoring application TOM™ during the study period;
• is capable of using the TOM™ application;
• signs the informed consent form;
• understands and speaks (Swiss) German.

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Exclusion Criteria

• in the opinion of the pharmacists, unlikely to comply with the study schedule or are unsuitable for any other reason.
• does not manage medication himself/herself
• already using a medication intake reminder

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Intervention Group	Smartphone medication intake reminder + educational and motivational text messaging	Reminder + text messaging

Primary Outcome Measures

Name	Time	Method
Adherence rates (in percent)	Up to 14 days (maximum therapy duration)	Patients confirm every medication intakes in the app. The app will deliver time stamps. Based on these, taking, dosing and timing adherence will be calculated in percent.

Secondary Outcome Measures

Name	Time	Method
Persistence rate (in percent)	Up to 14 days (maximum therapy duration)	Patients confirm every medication intakes in the app. The app will deliver time stamps. Based on these, persistence rate to the therapy will be calculated: \[days with at least one dose / prescribed treatment days\] × 100
Time to symptom control	Up to 14 days (maximum therapy duration)	Patients will note in a diary their symptoms once daily. Time to symptom control will be calculated as number of days up to freedom of symptoms.
Patients' satisfaction with the service including the app	7 days after therapy completion	Satisfaction will be assessed quantitatively in an online-survey on a 5-point Likert-scale. High values will indicate a better outcome.
Pharmacists' satisfaction with the service including the app	2 weeks after study completion	Satisfaction will be assessed through semi-structured interviews and analyzed inductively.

Trial Locations

Locations (2)

TopPharm Hirschen Apotheke; 🇨🇭 Magden, Aargau, Switzerland

Greifen Apotheke; 🇨🇭 Basel, Basel-Stadt, Switzerland