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HypertensionNCT05131074

Collabree: A Remote Intervention to Improve the Regularity of Medication Intake

A study testing Collabree Mobile Phone Application Medication Adherence Booster and Collabree Mobile Phone Application Medication Adherence Booster (simplified version) in people with Hypertension and Medication Adherence, run by Anjali Raja Beharelle at 1 site in Switzerland.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a clinical study to improve the regularity of medication intake for high blood pressure. Adult women and men who are over 50 years old, who have received a prescription drug for high blood pressure from MediService, and who have to take at least 4 tablets per day (of which at least 1 dose of medication per day… Read more about this study

Who is it for?
Ages 50 years and older
Conditions the study is for
Hypertension, Medication Adherence
What is being tested?
Collabree Mobile Phone Application Medication Adherence Booster and Collabree Mobile Phone Application Medication Adherence Booster (simplified version)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
144 participants
Where
1 siteSwitzerland
Study dates
10 Mar 2022to 24 Nov 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Informed consent as documented by signature.
  • Over 50 years of age on date of randomization.
  • Patient received prescription medicine against hypertension by post from MediService.
  • Prescribed a therapy against hypertension consisting of 4 or more tablets taken per day. At least 1 dose of medication per day must be against hypertension.
  • Participant administers their own medications.
  • Participant owns a smartphone with a data plan or constant internet access during the study reporting events and at home to use the application.
  • Minimal required smartphone operating system is iOS 12 and Android 8 (Oreo).
  • Adequate communication in German or Swiss-German (all study documentation will only be set to the German language).

Who cannot join

  • Inability to operate a mobile phone and the Collabree application.
  • Inability to follow the procedures of the study, e.g., due to language problems, psychological disorders, dementia, etc.
  • Enrollment of the Sponsor-Investigator, their family members, employees, and other dependent persons.
  • Participation in another interventional clinical trial.

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • Collabree AG

    Zurich, Canton of Zurich, 8002

Other trials in Switzerland

About this study

Official title: Collabree: A Targeted Behavioral Economics-based Remote Intervention to Improve Medication Adherence in Patients With Hypertension

This is a clinical study to improve the regularity of medication intake for high blood pressure. Adult women and men who are over 50 years old, who have received a prescription drug for high blood pressure from MediService, and who have to take at least 4 tablets per day (of which at least 1 dose of medication per day is for high blood pressure) can participate in this study.

The investigators intend to examine whether Collabree, a mobile phone application, is effective in supporting patients with hypertension to more successfully following their therapy plan in order to improve the regularity of medication intake.

Read more

The study includes a 90-day intervention phase and a 90-day follow-up. The study does not require any therapy adjustments and no visits to a study center are necessary. The participants conduct the study independently at home. Participants will also fill out questionnaires.

Participants are randomly assigned to one of 3 groups in a ratio of 1: 1: 1. Two of these groups will receive the Collabree mobile phone application.

Being tested
Collabree Mobile Phone Application Medication Adherence Booster, Collabree Mobile Phone Application Medication Adherence Booster (simplified version)
Keywords
Digital Health, Behavioral Change
Medical subject headings
Hypertension, Medication Adherence

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Collabree Mobile Phone Application Medication Adherence BoosterBehavioural

    Patients take part in a 90-day program to promote medication adherence and a 90-day follow-up through the Collabree application. Patients will receive more information as to the exact functions and use of the mobile phone application when the application is installed on their mobile phone.

  • Collabree Mobile Phone Application Medication Adherence Booster (simplified version)Behavioural

    Patients take part in a 90-day program to promote medication adherence and a 90-day follow-up through the Collabree application. Patients will receive more information as to the exact functions and use of the mobile phone application when the application is installed on their mobile phone.

Study groups in NCT05131074
Study groupRoleWhat they receive
Intervention Group AExperimentalPatients receive the Collabree mobile phone application with a specific set of functions.
Receives: Behavioral: Collabree Mobile Phone Application Medication Adherence Booster
Intervention Group BExperimentalPatients receive the Collabree mobile phone application with a specific set of functions.
Receives: Behavioral: Collabree Mobile Phone Application Medication Adherence Booster (simplified version)
Control GroupNo interventionPatients will not receive the Collabree application.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Medication Adherence

    Difference between intervention Group A and the control group in mean medication adherence at endpoint (i.e. the endpoint visit at 90 days) as measured by pill count.

    Measured: 90 days

Secondary outcomes (3)
  1. Medication adherence (3 group comparison)

    Mean change from baseline in medication adherence (monitored by pill count) at endpoint for the intervention Group A vs. intervention Group B relative to the control group.

    Measured: 90 days

  2. Self-reported medication adherence

    Mean change from baseline in in-app medication adherence (defined as the number of medications self-reported as "taken" during the intervention period of 90 days divided by the number of prescribed medications listed in the in-app medication plan in that same time period) at endpoint for the intervention Group A vs. intervention Group B relative to the control group.

    Measured: 90 days

  3. Self-assessed medication adherence

    Mean change from baseline in the score on the Hill-Bone Scale (German version) questionnaire on medication adherence for the intervention Group A vs. intervention Group B relative to the control group at endpoint. The Hill-Bone Compliance to Blood Pressure Therapy Scale (German) scores can range from 14 to 56. A higher score means worse compliance.

    Measured: 90 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Nov 2021
  2. Study start10 Mar 2022
  3. Primary completion23 Aug 2024
  4. Study completion24 Nov 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
144 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05131074
Sponsor's protocol ID
COLLABREE-RS
Status last verified
Feb 2024
First submitted
11 Nov 2021
Last updated
18 Mar 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Collabree Mobile Phone Application Medication Adherence Booster and Collabree Mobile Phone Application Medication Adherence Booster (simplified version) in people with Hypertension and Medication Adherence, run by Anjali Raja Beharelle at 1 site in Switzerland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Medication Adherence (time frame: 90 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Mar 2026.

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