HypertensionDASHNa-CCNCT02579746
Dietary Approach to Stop Hypertension With Sodium (Na) Reduction for Chinese Canadians
A study testing DASHNa-CC in people with Hypertension, run by University of Toronto.
Trial summary
The study examined the feasibility of the Dietary Approach to Stop Hypertension with Sodium (Na) Reduction for Chinese Canadian (DASHNa-CC) intervention and its potential effects on blood pressure, health-related quality of life, and health service utilization. Read more about this study
- Who is it for?
- Ages 45 years and older
- Conditions the study is for
- Hypertension
- What is being tested?
- DASHNa-CC
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- No sites listed yet
- Study dates
- Aug 2014to Aug 2015
- 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 45 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- were at least 45 years old;
- had a systolic blood pressure 140 to 159 mmHg, or a diastolic blood pressure 90 to 99 mmHg, based on pre-intervention baseline assessment;
- were able to understand (listen) and speak in Mandarin, read and write in Chinese; and
- had access to a telephone.
Who cannot join
- used antihypertensive medications or other medications that raise or lower blood pressure during the previous three months;
- used TCM or professional TCM counselling to decrease blood pressure during the previous three months;
- used insulin or oral hypoglycemic agents during the previous three months;
- had a history of a cardiovascular event (stroke, myocardial infarction, percutaneous transluminal coronary angioplasty, coronary artery bypass surgery, or other arteriosclerotic cardiovascular disease related therapeutic procedure) during the previous three months;
- had a history of congestive heart failure;
- had a cancer diagnosis or treatment during the past two years;
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- had special dietary requirements;
- were pregnant, breast feeding, or planned for pregnancy prior to the anticipated end of study;
- were a household member of another DASHNa-CC participant; or
- planned to leave the area prior to the anticipated end of study.
About this study
The study examined the feasibility of the Dietary Approach to Stop Hypertension with Sodium (Na) Reduction for Chinese Canadian (DASHNa-CC) intervention and its potential effects on blood pressure, health-related quality of life, and health service utilization. Half of participants received usual care while the other half received the DASHNa-CC intervention.
Read the detailed description
Hypertension has been identified as the most important risk factor for cardiovascular diseases and accounts for a large proportion of stroke, myocardial infarction and heart failure in the Chinese population. While unhealthy diet has been identified as a modifiable risk factor for hypertension, there is a lack of culturally sensitive dietary intervention targeting Chinese Canadians. The 8-week DASHNa-CC intervention incorporated Dietary Approach to Stop Hypertension (DASH) diet, sodium reduction with the food therapy of Traditional Chinese Medicine, and included an intervention manual, two sessions of classroom instruction delivered in Mandarin, and a 20-minute telephone follow-up.
- Conditions
- Hypertension
- Being tested
- DASHNa-CC, usual care
- Keywords
- hypertension, immigrant, dietary intervention, lifestyle modification
- Medical subject headings
- Hypertension
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
DASHNa-CCBehavioural
The 8-week DASHNa-CC intervention incorporated Dietary Approach to Stop Hypertension (DASH) diet, sodium reduction with the food therapy of Traditional Chinese Medicine, and included an intervention manual, two sessions of classroom instruction delivered in Mandarin, and a 20-minute telephone follow-up.
usual careBehavioural
education booklet, encouragement of physician visit, use of public health resources if needed
| Study group | Role | What they receive |
|---|---|---|
| intervention | Experimental | The intervention group received usual care plus the DASHNa-CC intervention. Receives: Behavioral: DASHNa-CC; Behavioral: usual care |
| control | Active comparator | The control group received usual care. Receives: Behavioral: usual care |
What is being measured
The primary outcome is the main question the study is designed to answer.
blood pressure
systolic and diastolic blood pressure
Measured: 8 weeks post randomization
Secondary outcomes (1)
health related quality of life
used SF-36v2
Measured: 8 weeks post randomization
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Oct 2015 (estimated)
- Study startAug 2014
- Primary completionDec 2014
- Study completionAug 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HypertensionStudies of the same condition, open and under way.
- More trials run by University of TorontoThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 60 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Toronto
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ping Zou, University of Toronto
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02579746
- Sponsor's protocol ID
- UofT30496
- Acronym
- DASHNa-CC
- Status last verified
- Oct 2015
- First submitted
- 16 Oct 2015
- Last updated
- 20 Oct 2015
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 20 Oct 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Dietary Approach to Stop Hypertension With Sodium (Na) Reduction for Chinese Canadians
- ClinicalTrials.gov ID
- NCT02579746
- Acronym / sponsor ID
- DASHNa-CC / UofT30496
- Conditions
- Hypertension
- Keywords
- hypertension, immigrant, dietary intervention, lifestyle modification
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 60 participants (actual)
- Lead sponsor
- University of TorontoUniversity, hospital or other
- Study start
- Aug 2014
- Primary completion
- Dec 2014 (actual)
- Study completion
- Aug 2015 (actual)
- First posted
- 20 Oct 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The study examined the feasibility of the Dietary Approach to Stop Hypertension with Sodium (Na) Reduction for Chinese Canadian (DASHNa-CC) intervention and its potential effects on blood pressure, health-related quality of life, and health service utilization. Half of participants received usual care while the other half received the DASHNa-CC intervention.
Detailed description
Hypertension has been identified as the most important risk factor for cardiovascular diseases and accounts for a large proportion of stroke, myocardial infarction and heart failure in the Chinese population. While unhealthy diet has been identified as a modifiable risk factor for hypertension, there is a lack of culturally sensitive dietary intervention targeting Chinese Canadians. The 8-week DASHNa-CC intervention incorporated Dietary Approach to Stop Hypertension (DASH) diet, sodium reduction with the food therapy of Traditional Chinese Medicine, and included an intervention manual, two sessions of classroom instruction delivered in Mandarin, and a 20-minute telephone follow-up.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| intervention | Experimental | Behavioral: DASHNa-CC, Behavioral: usual careThe intervention group received usual care plus the DASHNa-CC intervention. |
| control | Active comparator | Behavioral: usual careThe control group received usual care. |
Who may qualify
- Ages
- 45 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- were at least 45 years old;
- had a systolic blood pressure 140 to 159 mmHg, or a diastolic blood pressure 90 to 99 mmHg, based on pre-intervention baseline assessment;
- were able to understand (listen) and speak in Mandarin, read and write in Chinese; and
- had access to a telephone.
Key exclusion criteria (10 listed)
- used antihypertensive medications or other medications that raise or lower blood pressure during the previous three months;
- used TCM or professional TCM counselling to decrease blood pressure during the previous three months;
- used insulin or oral hypoglycemic agents during the previous three months;
- had a history of a cardiovascular event (stroke, myocardial infarction, percutaneous transluminal coronary angioplasty, coronary artery bypass surgery, or other arteriosclerotic cardiovascular disease related therapeutic procedure) during the previous three months;
- had a history of congestive heart failure;
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| DASHNa-CCThe 8-week DASHNa-CC intervention incorporated Dietary Approach to Stop Hypertension (DASH) diet, sodium reduction with the food therapy of Traditional Chinese Medicine, and included an intervention manual, two sessions of classroom instruction delivered in Mandarin, and a 20-minute telephone follow-up. | Behavioural | intervention |
| usual careeducation booklet, encouragement of physician visit, use of public health resources if needed | Behavioural | control, intervention |
Primary outcome
blood pressure
Time frame: 8 weeks post randomization
systolic and diastolic blood pressure
1 secondary outcome
health related quality of life
Time frame: 8 weeks post randomization
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Oct 2015.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
A study testing DASHNa-CC in people with Hypertension, run by University of Toronto.
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 4 inclusion and 10 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 20 Oct 2015. Status can change between updates, so confirm with the study contact before making plans.
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?
blood pressure (time frame: 8 weeks post randomization). 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 20 Oct 2015.