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Conventional Versus Automated Measurement of Blood Pressure in the Office (The CAMBO Study) (CAMBO)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00325832
Recruitment Status : Completed
First Posted : May 15, 2006
Last Update Posted : August 23, 2010
Heart and Stroke Foundation of Ontario
Information provided by:
Sunnybrook Health Sciences Centre

Brief Summary:
To determine if the use of automated office blood pressure readings can improve management of systolic hypertension in routine clinical practice. Automated office SBP recordings in routine clinical practice using the BpTRU device will reflect more accurately the mean awake ambulatory systolic BP than will manual BP readings taken with conventional mercury sphygmomanometry. This should lead to improvements in the management of systolic hypertension with optimization of drug therapy in practices using the BpTRU device.

Condition or disease Intervention/treatment Phase
Hypertension Device: BpTRU Device: Conventional mercury sphygmomanometry Phase 4

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 750 participants
Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: None (Open Label)
Study Start Date : January 2006

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. ambulatory blood pressure

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Both treated and untreated patients with systolic hypertension under routine FP care
  • For untreated patients, routine office SBP as measured by the patient's FP at the last routine office visit using a mercury device must have SBP ≥ 160 mmHg and DBP <= 95 mmHg
  • For patients already receiving antihypertensive therapy, the last routine office BP as measured by the patient's FP using mercury sphygmomanometry must be SBP ≥ 140 mmHg and DBP <= 90 mmHg

Exclusion Criteria:

  • Presence of target organ damage such as MI, stroke, and serum creatinine twice normal
  • Diabetes mellitus treated with insulin or oral hypoglycemic therapy
  • Secondary hypertension
  • Participation in another research study involving measurement of BP
  • Patient's insistence on using self BP measurement outside of the study
  • Any conditions or circumstances which might preclude the successful completion of the study

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00325832

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Canada, Ontario
Sunnybrook Health Sciences Centre
Toronto, Ontario, Canada, M4N 3M5
Sponsors and Collaborators
Sunnybrook Health Sciences Centre
Heart and Stroke Foundation of Ontario
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Principal Investigator: Martin Myers, MD Sunnybrook Medical Sciences Centre
Study Chair: Sheldon Tobe, MD Sunnybrook Health Sciences Centre
Layout table for additonal information Identifier: NCT00325832    
Other Study ID Numbers: 392-2005
First Posted: May 15, 2006    Key Record Dates
Last Update Posted: August 23, 2010
Last Verified: May 2008
Keywords provided by Sunnybrook Health Sciences Centre:
Blood Pressure
Systolic Pressure
Diastolic Pressure
Blood Pressure Monitoring, Ambulatory
Additional relevant MeSH terms:
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Vascular Diseases
Cardiovascular Diseases