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HypertensionOptimizeBPNCT05047731

Antihypertensive Deprescribing in Long-term Care

A study testing Antihypertensive medication in people with Hypertension and Frailty, run by University of Alberta at 1 site in Canada.

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

Frail older adults are commonly prescribed blood pressure medication, yet it is unclear if blood pressure medication is actually beneficial for them. Observational studies in this population suggest blood pressure medication has limited benefit and may even be harmful, including an increased risk for falls and… Read more about this study

Who is it for?
Ages 70 years and older
Conditions the study is for
Hypertension, Frailty
What is being tested?
Antihypertensive medication
Could I receive a placebo?
No, everyone receives an active treatment
How many people
522 participants
Where
1 siteCanada
Study dates
20 Sep 2021to 30 Nov 2025
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 70 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • ≥2 diagnoses (dx) of hypertension from either a community practitioner or/and from a hospital admission.
  • On ≥1 oral antihypertensive medication (requires a dispensation in the preceeding 15 days).
  • Average recorded systolic BP of <135 mmHg.

Who cannot join

  • ≥2 community dx of congestive heart failure, ≥1 dx of in hospital congestive heart failure, ≥1 dx of emergency visit of congestive heart failure, dx of congestive heart failure in RAI-MDS 2.0, or prescription of furosemide in the last 15 days.
  • The resident's only antihypertensive prescribed is a beta blocker.
  • The resident's only antihypertensive prescribed is a calcium channel blocker and the resident has ≥1 health system encounters with a diagnosis of angina.
  • The resident's only antihypertensive prescribed is an alpha blocker.
  • Admitted to the hospital at the time of randomization; or opted out of the trial by the resident, their family, their physician, or the facility.

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Multiple long-term care facilities

    Multiple Locations, Alberta

Other trials in Canada

About this study

Official title: Antihypertensive Deprescribing in Long-term Care: A Randomized Controlled Trial (OptimizeBP)

Frail older adults are commonly prescribed blood pressure medication, yet it is unclear if blood pressure medication is actually beneficial for them. Observational studies in this population suggest blood pressure medication has limited benefit and may even be harmful, including an increased risk for falls and cognitive impairment. Randomized controlled trials are needed to confirm this.

This study is a randomized controlled trial of blood pressure medication deprescribing, amongst long-term care residents with systolic blood pressure lower than 135 mmHg. In the intervention group, with physician consent, the facility pharmacist or nurse practitioner will continually reduce antihypertensives provided an upper systolic threshold of 145 mmHg is not exceeded. The control group will receive usual care. The hypothesis is that avoiding unnecessarily low systolic blood pressure is beneficial in a frail, end-of-life population.

Read the detailed description

Observational evidence suggests antihypertensive medications have limited benefit and may even be harmful in the frail older adult population. Although more modest blood pressure targets are already recommended, the impact of deprescribing antihypertensive medication on mortality and morbidity in the frail older adult population has yet to be confirmed by randomized controlled trials.

The objective of this study is to determine, in hypertensive long-term care residents with a systolic blood pressure below 135 mmHg, whether "deprescribing" antihypertensive medications (provided an upper systolic threshold of 145 mmHg is not exceeded), compared to no change in prescribing, will delay all-cause mortality (our primary outcome).

The study is an event-driven 2-parallel group randomized controlled trial, to be conducted in participating Alberta long-term care (LTC) facilities. The trial operates under a waiver of consent, as the intervention is recommended care, with residents, physicians, and family having the ability to opt individual residents out of the study before eligibility is determined. Eligibility will be determined using linked administrative claims databases holding physician diagnoses and medication dispensed, and by using usual care systolic blood pressure collected by the LTC facility. The provincial data steward (Alberta Health Services) will access this data, determine eligibility, individually randomize eligible residents who have not opted out, and advise the facility pharmacist which patients are in the intervention group.

Facility pharmacists or nurse practitioners will then stop or reduce doses of antihypertensive medication in the intervention group according to a pre-defined deprescribing algorithm. The data steward will track outcomes using administrative claims data, and the study will end once 247 primary outcome events have been observed. This is anticipated to occur 3-years post the start of randomization. An interim data safety monitoring board, chaired by Dr. James M.Wright, hypertension specialist and Co-ordinating Editor of the Cochrane Hypertension Review Group, will convene upon observing 124 primary outcomes. This group will recommend whether or not the study should stop early based on observed efficacy, or safety concerns.

Being tested
Antihypertensive medication
Keywords
Pragmatic trial, Long-term care, Nursing home, Hypertension, Antihypertensive agents, Deprescriptions, Routinely collected health data, Frail older adult
Medical subject headings
Hypertension, Frailty

What participants receive

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

  • Antihypertensive medicationDrug

    Antihypertensive medication will be continually reduced provided an upper systolic threshold of 145 mmHg is not exceeded

Study groups in NCT05047731
Study groupRoleWhat they receive
Deprescribing groupExperimentalThe facility pharmacist will actively deprescribe antihypertensive medication of residents in this group.
Receives: Drug: Antihypertensive medication
Usual care groupNo interventionThe facility pharmacist and the attending physician will provide usual care to residents in this group, and this includes quarterly medication reviews.

What is being measured

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

  1. All-Cause Mortality

    All-cause death - as recorded in government health claim databases

    Measured: through study completion (estimated to be 4 years, trial will continue until 247 participants have experienced the primary outcome event)

Secondary outcomes (1)
  1. Composite of All-Cause Mortality or All-Cause Unplanned Hospitalization

    Composite of all-cause death and unplanned hospital admission or emergency room visit - as recorded in government health claim databases

    Measured: through study completion (estimated to be 4 years, trial will continue until 247 participants have experienced the primary outcome event)

Timeline

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

  1. First posted17 Sep 2021
  2. Study start20 Sep 2021
  3. Primary completion30 Nov 2025
  4. Study completion30 Nov 2025

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
522 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05047731
Sponsor's protocol ID
Pro00097312
Acronym
OptimizeBP
Status last verified
Jan 2026
First submitted
8 Sep 2021
Last updated
8 Jan 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Although we hope to make a de-identified participant-level version of our final analytic dataset publicly available on our website (www.PragmaticTrials.ca), and will request to do so, this requires the permission of Alberta Health Services, who must weigh the privacy concerns.

Publications

  • Kraut RY, Youngson E, Sadowski CA, Bakal JA, Faulder D, Korownyk CS, Vucenovic A, Eurich DT, Manca DP, Lundby C, Kivi P, Manville M, Garrison SR. Antihypertensive deprescribing in frail long-term care residents (OptimizeBP): protocol for a prospective, randomised, open-label pragmatic trial. BMJ Open. 2024 Aug 29;14(8):e084619. doi: 10.1136/bmjopen-2024-084619.

    PubMed 39209778

Questions about this trial

What is this clinical trial studying?

A study testing Antihypertensive medication in people with Hypertension and Frailty, run by University of Alberta at 1 site in Canada.

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 3 inclusion and 5 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 8 Jan 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 Canada. 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?

All-Cause Mortality (time frame: through study completion (estimated to be 4 years, trial will continue until 247 participants have experienced the primary outcome event)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05047731, which also lists 1 linked publication.

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 8 Jan 2026.

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