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Active, not recruitingNCT06243978Updated Jun 16, 2026

Effectiveness of a Digital Health Application for Primary Hypertension (Liebria)

An interventional study of liebria and information brochure on hypertension in Hypertension, sponsored by Gaia AG. Active, not recruiting at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-16.

Sponsored by Gaia AG · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
328
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This clinical trial with 328 patients with primary hypertension aims to investigate the effectiveness of the self-guided digital application liebria for patients with primary hypertension.

Read the detailed description

This clinical trial with 328 patients with primary hypertension aims to investigate the effectiveness of the self-guided digital application liebria for patients with primary hypertension. Inclusion criteria are: age ≥ 18; presence of primary hypertension (confirmed by medical certificate or equivalent); unmedicated or with existing antihypertensive drug therapy (with stable dose in the past 6 weeks prior to study enrolment); last reported office-based systolic blood pressure (SBP) ≥ 140 mmHg followed by home-based SBP ≥ 135 mmHg; consent to participate. Exclusion criteria are: home-based SBP > 180 mmHg; > triple combination of antihypertensive medication; history of secondary hypertension (e.g., thyroid disease, kidney disease); pregnancy.

Patients will be randomized and allocated in a 1:1 ratio to either an intervention group, in which they will receive access to liebria in addition to treatment as usual (TAU, n = 164), or to a control group, in which they will receive a relevant brochure from the Deutsche Hochdruckliga (German Hypertension League) in addition to TAU (n = 164). TAU is defined as any therapy prescribed or recommended by the GP or specialists (e. g. cardiologist).

The primary endpoint will be home-based SBP, with 6 months post-allocation being the primary time point for assessment of effectiveness. Three months post-allocation will be used as an additional endpoint. Secondary endpoints will be patient activation, social and work-related functioning, medication adherence, home-based diastolic blood pressure (DBP), and pulse pressure.

Analysis of effectiveness of the intervention will be performed by ANCOVA of the primary endpoint and all secondary endpoints, in which the posttreatment scores will be compared between treatment groups (intervention group vs. control group), using the baseline scores of the respective outcome as a covariate.

02

Conditions studied

  • Hypertension

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03

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age ≥ 18
  • Presence of primary hypertension, confirmed by submission of a medical certificate or equivalent (e.g., informal letter signed by primary care physician); relevant ICD-10-GM diagnoses:

    • I10.00 (Benign essential hypertension: Without indication of hypertensive crisis)
    • I10.90 (Essential hypertension, unspecified: Without indication of hypertensive crisis)
  • Unmedicated or with existing antihypertensive drug therapy (with stable dose in the past 6 weeks prior to study enrolment)
  • Last reported office-based systolic blood pressure (SBP) ≥ 140 mmHg followed by home-based SBP ≥ 135 mmHg
  • Consent to participate

Exclusion criteria

Exclusion Criteria:

  • Home-based SBP > 180 mmHg
  • > Triple combination of antihypertensive medication
  • History of secondary hypertension (e.g., thyroid disease, kidney disease)
  • Pregnancy
04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
328 participants (estimated)

Study arms

  • Experimental
    liebria

    Participants allocated to the intervention group will receive access to liebria in addition to treatment as usual (TAU). reviga is a digital health application designed for individuals with hypertension, accessible through a web browser. The application focuses on evidence-based psychological and psychotherapeutic methods combined with psychoeducation and health behavior change. Topics addressed by liebria include clarifying and strengthening motivation, training the parasympathetic nervous system, recognizing and overcoming obstacles, strengthening impulse control, development of an individualized day plan, and relapse prevention. The program operates through interactive "dialogues", which are accompanied by illustrations, audio recordings, motivating text messages, worksheets, and summaries. Users are also encouraged to regularly complete short questionnaires to monitor their complaints. Once registered, the program remains accessible for 360 days.

    Behavioral: liebria

  • Other
    brochure on hypertension

    Participants allocated to the control group will receive a brochure from the Deutsche Hochdruckliga (German Hypertension League) in addition to TAU.

    Other: information brochure on hypertension

Interventions

  • Behavioralliebria

    Participants will receive access to the digital health intervention liebria in addition to TAU

  • Otherinformation brochure on hypertension

    Participants will receive an information brochure on hypertension

05

What researchers measure

Primary outcomes

  1. SBP (in mmHg)

    The primary endpoint is SBP collected via home-based blood pressure measurement (HBPM) using a validated semi-automatic arm cuff device. HBPM will be performed according to the recommendations of the European Society of Hypertension.

    Time frame: 6 months

Secondary outcomes

  1. Patient activation

    Patient Activation Measure (PAM-13). Total score ranging from 0-100; higher scores mean higher activation (better outcome).

    Time frame: 6 months

  2. Social and work-related functioning

    Work and Social Adjustment Scale (WSAS). Total score ranging from 0-40; higher scores mean higher impairment (worse outcome).

    Time frame: 6 months

  3. Adherence to medication

    Rief Adherence Index (RAI). Total score ranging from 4-20; higher scores mean higher non-adherence (worse outcome).

    Time frame: 6 months

  4. DBP (in mmHg)

    DBP is collected via home-based blood pressure measurement (HBPM) using a validated semi-automatic arm cuff device. HBPM will be performed according to the recommendations of the European Society of Hypertension.

    Time frame: 6 months

  5. Pulse pressure (in mmHg)

    Pulse pressure (PP) is collected via home-based blood pressure measurement (HBPM) using a validated semi-automatic arm cuff device. HBPM will be performed according to the recommendations of the European Society of Hypertension.

    Time frame: 6 months

Other outcomes

  1. Body Mass Index

    weight in kilograms and height in meters will be assessed and combined to report BMI in kg/m\^2

    Time frame: 6 months, 3 months

  2. concomitant antihypertensive medication

    number and dosage of concomitant antihypertensive medications (agents in section C of the Anatomical Therapeutic Chemical Classification System)

    Time frame: 6 months, 3 months

  3. 24-hour average SBP (in mmHg)

    A 24-hour ambulatory blood pressure measurement (ABPM) will be performed according to recommendations of the International Society of Cardiology: ABPM will be conducted using an FDA-cleared, CE-labeled wireless, non-invasive chest-patch sensor for 24-hour, with measurements four times an hour over 24-hours, resulting in a total of 96 possible measurements.

    Time frame: 6 months, 3 months

  4. 24-hour average DBP (in mmHg)

    A 24-hour ambulatory blood pressure measurement (ABPM) will be performed according to recommendations of the International Society of Cardiology: ABPM will be conducted using an FDA-cleared, CE-labeled wireless, non-invasive chest-patch sensor for 24-hour, with measurements four times an hour over 24-hours, resulting in a total of 96 possible measurements.

    Time frame: 6 months, 3 months

  5. 24-hour average PP (in mmHg)

    A 24-hour ambulatory blood pressure measurement (ABPM) will be performed according to recommendations of the International Society of Cardiology: ABPM will be conducted using an FDA-cleared, CE-labeled wireless, non-invasive chest-patch sensor for 24-hour, with measurements four times an hour over 24-hours, resulting in a total of 96 possible measurements.

    Time frame: 6 months, 3 months

  6. Daytime average SBP (in mmHg)

    Daytime average SBP will be defined as the average of those ABPM measurements collected between 10:00 and 20:00, in agreement with the International Database of ABP in relation to Cardiovascular Outcome (IDACO) criteria for Europeans.

    Time frame: 6 months, 3 months

  7. Nighttime average SBP (in mmHg)

    Nighttime average SBP will be defined as the average of those ABPM measurements collected between 0:00 and 06:00, in agreement with the IDACO criteria for Europeans

    Time frame: 6 months, 3 months

  8. SBP (in mmHg)

    The primary endpoint is SBP collected via home-based blood pressure measurement (HBPM) using a validated semi-automatic arm cuff device. HBPM will be performed according to the recommendations of the European Society of Hypertension.

    Time frame: 3 months

  9. Patient activation

    Patient Activation Measure (PAM-13). Total score ranging from 0-100; higher scores mean higher activation (better outcome).

    Time frame: 3 months

  10. Social and work-related functioning

    Work and Social Adjustment Scale (WSAS). Total score ranging from 0-40; higher scores mean higher impairment (worse outcome).

    Time frame: 3 months

  11. Adherence to medication

    Rief Adherence Index (RAI). Total score ranging from 4-20; higher scores mean higher non-adherence (worse outcome).

    Time frame: 3 months

  12. DBP (in mmHg)

    DBP is collected via home-based blood pressure measurement (HBPM) using a validated semi-automatic arm cuff device. HBPM will be performed according to the recommendations of the European Society of Hypertension.

    Time frame: 3 months

  13. Pulse pressure (in mmHg)

    Pulse pressure (PP) is collected via home-based blood pressure measurement (HBPM) using a validated semi-automatic arm cuff device. HBPM will be performed according to the recommendations of the European Society of Hypertension.

    Time frame: 3 months

06

Study locations

1 site
  • GAIA AG
    Hamburg, Free and Hanseatic City of Hamburg 22085, Germany
07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT06243978
Lead sponsor
Gaia AG
Collaborators
University Hospital Schleswig-Holstein, Charite University, Berlin, Germany
Responsible party
Sponsor
First posted
Feb 6, 2024
Start date
Apr 2, 2024
Primary completion
Jun 2026 (estimated)
Completion
Jun 2026 (estimated)
Last update
Jun 16, 2026

Study contacts

Kamila Jauch-Chara, MD
principal investigator · University Hospital Schleswig-Holstein

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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