CoCo: Colour Coded Blood Pressure Control (CoCo)

December 10, 2013 updated by: University of Zurich

Does a Colour-coded Blood Pressure Diary Improve Blood Pressure Control for Patients in General Practice? A Randomised Controlled Study

Insufficient blood pressure control is a frequent problem despite the existence of effective treatment. One of the causes is insufficient self-monitoring and a lack of adherence to therapy. Blood pressure self-measurement at home (Home Blood Pressure Measurement, HBPM) has positive effects on treatment adherence and is helpful in achieving the target blood pressure.

Only a few studies have investigated whether the adherence for HBPM can be improved through simple measures and better blood pressure monitoring can be achieved.

Objective Improvement of self-monitoring by means of blood pressure self-measurement and improved blood pressure control by using a new colour-coded blood pressure diary

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment (Actual)

121

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • ZH
      • Zurich, ZH, Switzerland, 8091
        • University Hospital Zurich, Institute of General Practice

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion criteria:

  • Age >18 years
  • BP > 140/90 mmHg Two consecutive measurements carried out in the practice (measured by the general practitioner at the start of the study).
  • Unchanged anti-hypertension treatment for one month before inclusion
  • Patient able to measure blood pressure at home
  • Written informed consent

Exclusion criteria: • Blood pressure reading over 180 mmHg systolic and/or 110 mmHg diastolic.

  • Serious general or psychological illness (malignant tumor, serious depressive episodes or evidence of dementia).
  • Insufficient knowledge of the German language for instruction and blood pressure recording with a booklet.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: color coded bloodpressure booklet
The patients in the intervention group will receive a colour-coded blood pressure record booklet. The corresponding colour coded areas are divided into three areas of green, yellow and red following a traffic light system. The green area covers blood pressure readings up to a maximum of 140/90 mmHg, the yellow area includes systolic readings over 140 to 180 mm Hg and diastolic readings over 90 to 110 mmHg. The red area covers systolic readings over 180 mmHg and diastolic readings over 110 mmHg.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Primary outcome: change in systolic and/or diastolic blood pressure 6 months after using the new colour-coded blood pressure diary.
Time Frame: 6months
6months

Secondary Outcome Measures

Outcome Measure
Time Frame
adherence with home blood pressure measurements
Time Frame: 6 months
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Thomas J. Rosemann, Prof MD, University Hospital Zurich, Institute of General Practice

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2009

Primary Completion (Actual)

June 1, 2010

Study Completion (Actual)

October 1, 2010

Study Registration Dates

First Submitted

November 11, 2009

First Submitted That Met QC Criteria

November 12, 2009

First Posted (Estimate)

November 13, 2009

Study Record Updates

Last Update Posted (Estimate)

December 11, 2013

Last Update Submitted That Met QC Criteria

December 10, 2013

Last Verified

December 1, 2013

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1738

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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