Cardiovascular DiseasesPhase 4NCT00000521
Sodium-Potassium Blood Pressure Trial in Children
A Phase 4 study testing diet, sodium-restricted and diet, potassium-supplemented in people with Cardiovascular Diseases and Heart Diseases, run by University of Minnesota.
Trial summary
To examine the effects of nutritional intervention on the rate of rise of blood pressure in late childhood and early adolescence. Read more about this study
- Who is it for?
- Ages 10 to 13 years
- Conditions the study is for
- Cardiovascular Diseases, Heart Diseases, Hypertension
- What is being tested?
- diet, sodium-restricted and diet, potassium-supplemented
- Type of treatment
- Lifestyle or therapy programme
- How many people
- 285 participants
- Where
- No sites listed yet
- Study dates
- Aug 1985to Dec 1990
- Phase
- Phase 4
- 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 10 to 13 years
- All sexes
- No healthy volunteers
- Child
Children in grades 5 through 8 whose systolic blood pressure was greater than or equal to 120 mm Hg on two visits.
About this study
To examine the effects of nutritional intervention on the rate of rise of blood pressure in late childhood and early adolescence.
Read the detailed description
BACKGROUND:
Since 1970, children and adolescents with hypertension have been detected with increasing frequency. Many of them were thought to have primary or essential hypertension and it remained unclear how they should be managed. Additionally, since tracking of blood pressure occurred even in early life, it was believed that youngsters with blood pressures persistently in the upper deciles for age were at increased risk for later hypertension. No clinical trials had been performed in this age group to examine the effects of non-pharmacologic or drug therapy in lowering blood pressure. The trial was one of the first attempts to examine the effects of a nutritional intervention on the rate of rise of blood pressure in late childhood and early adolescence.
DESIGN NARRATIVE:
Randomized, partial-blind. After 19,542 fifth to eighth grade students were screened, 210 (105 boys and 105 girls) from the upper 15 percentiles of blood pressure distribution were randomly assigned to one of three groups: low sodium diet (70 mmol sodium intake per day), potassium chloride supplementation (normal diet plus 1 mmol/kg potassium chloride per day), and placebo (normal diet plus placebo capsule). Capsules for the potassium chloride and placebo groups were administered in a double blind protocol. Blood pressure was measured every three months for three years. The effect of the intervention was determined by comparing the rate of rise (slope) of blood pressure among the groups using a random-coefficient growth curve model.
- Being tested
- diet, sodium-restricted, diet, potassium-supplemented
- Medical subject headings
- Cardiovascular Diseases, Heart Diseases, Hypertension, Vascular Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
diet, sodium-restrictedBehavioural
diet, potassium-supplementedBehavioural
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Oct 1999 (estimated)
- Study startAug 1985
- Primary completionJul 1990
- Study completionDec 1990
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Cardiovascular DiseasesStudies of the same condition, open and under way.
- More trials run by University of MinnesotaThe 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 4
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 285 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Minnesota
- Sponsor type
- University, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00000521
- Sponsor's protocol ID
- 40
- Other IDs
- R01HL034659
- Status last verified
- May 2014
- First submitted
- 27 Oct 1999
- Last updated
- 29 May 2014
- Results posted
- No
Publications
Gomez-Marin O, Prineas RJ, Sinaiko AR. The Sodium-Potassium Blood Pressure Trial in Children. Design, recruitment, and randomization: the children and adolescent blood pressure program. Control Clin Trials. 1991 Jun;12(3):408-23. doi: 10.1016/0197-2456(91)90020-m.
PubMed 1651211Sinaiko AR, Gomez-Marin O, Prineas RJ. Effect of low sodium diet or potassium supplementation on adolescent blood pressure. Hypertension. 1993 Jun;21(6 Pt 2):989-94. doi: 10.1161/01.hyp.21.6.989.
PubMed 8505112
Study at a glance
From the registry record, last updated by the sponsor on 29 May 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Sodium-Potassium Blood Pressure Trial in Children
- ClinicalTrials.gov ID
- NCT00000521
- Acronym / sponsor ID
- 40
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 285 participants (actual)
- Lead sponsor
- University of MinnesotaUniversity, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Study start
- Aug 1985
- Primary completion
- Jul 1990 (actual)
- Study completion
- Dec 1990 (actual)
- First posted
- 28 Oct 1999 (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.
To examine the effects of nutritional intervention on the rate of rise of blood pressure in late childhood and early adolescence.
Detailed description
BACKGROUND:
Since 1970, children and adolescents with hypertension have been detected with increasing frequency. Many of them were thought to have primary or essential hypertension and it remained unclear how they should be managed. Additionally, since tracking of blood pressure occurred even in early life, it was believed that youngsters with blood pressures persistently in the upper deciles for age were at increased risk for later hypertension. No clinical trials had been performed in this age group to examine the effects of non-pharmacologic or drug therapy in lowering blood pressure. The trial was one of the first attempts to examine the effects of a nutritional intervention on the rate of rise of blood pressure in late childhood and early adolescence.
DESIGN NARRATIVE:
Randomized, partial-blind. After 19,542 fifth to eighth grade students were screened, 210 (105 boys and 105 girls) from the upper 15 percentiles of blood pressure distribution were randomly assigned to one of three groups: low sodium diet (70 mmol sodium intake per day), potassium chloride supplementation (normal diet plus 1 mmol/kg potassium chloride per day), and placebo (normal diet plus placebo capsule). Capsules for the potassium chloride and placebo groups were administered in a double blind protocol. Blood pressure was measured every three months for three years. The effect of the intervention was determined by comparing the rate of rise (slope) of blood pressure among the groups using a random-coefficient growth curve model.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
Who may qualify
- Ages
- 10 to 13 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child
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 |
|---|---|---|
| diet, sodium-restricted | Behavioural | – |
| diet, potassium-supplemented | Behavioural | – |
Primary outcome
Not reported in the source record.
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 29 May 2014.
- Background: PubMed 1651211Gomez-Marin O, Prineas RJ, Sinaiko AR. The Sodium-Potassium Blood Pressure Trial in Children. Design, recruitment, and randomization: the children and adolescent blood pressure program. Control Clin Trials. 1991 Jun;12(3):408-23. doi: 10.1016/0197-2456(91)90020-m.
- Background: PubMed 8505112Sinaiko AR, Gomez-Marin O, Prineas RJ. Effect of low sodium diet or potassium supplementation on adolescent blood pressure. Hypertension. 1993 Jun;21(6 Pt 2):989-94. doi: 10.1161/01.hyp.21.6.989.
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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 Phase 4 study testing diet, sodium-restricted and diet, potassium-supplemented in people with Cardiovascular Diseases and Heart Diseases, run by University of Minnesota.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
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 29 May 2014. 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.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00000521, which also lists 2 linked publications.
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 29 May 2014.