Ignite Creation Date:
2024-05-05 @ 11:21 AM
Last Modification Date:
2024-10-26 @ 9:01 AM
Study NCT ID:
NCT00000536
Status:
COMPLETED
Last Update Posted:
2016-02-25
First Post:
1999-10-27
Brief Title:
Sodium Sensitivity in African Americans
Sponsor:
University of Minnesota
Organization:
University of Minnesota
Study Overview
Official Title:
None
Status:
COMPLETED
Status Verified Date:
2016-02
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
To compare the effects of two levels of dietary sodium on blood pressure in Black men and women and to determine what factors predict the degree of response
Detailed Description:
BACKGROUND
The study permitted a more precise estimate of the effects of sodium chloride on blood pressure in Blacks and a systematic examination of sodium sensitivity defined by various methods The results had significance in answering questions about risk factors for blood pressure in Blacks and for defining sodium sensitivity
DESIGN NARRATIVE
Double-blind two-period cross-over All participants were given six weeks of intensive nutritional counseling to lower 24-hour urine sodium output from an estimated 165 mEq24 hours at baseline to less than 140 mEq24 hours Only those participants who excreted less than 140 mEq 24 hours after six weeks of intensive dietary sodium intervention and had greater than 70 percent adherence to study capsules were eligible for randomization Eligible subjects were assigned to one of two treatment sequences 100 mEq of sodium chloride capsules per day during period one followed by placebo capsules during period two placebo capsules during period one followed by 100 mEq of sodium chloride capsules per day during period two The major endpoint was change in diastolic and systolic blood pressure A number of other measures were carried out including blood chemistries glucose tolerance glucose and insulin insulin resistance urinary kallikrein serum renin and plasma norepinephrine Other major aims of the trial included testing general new diagnostic criteria for sodium sensitivity examining predictors of sodium sensitivity and examining how changes in sodium intake influenced change in specific metabolic parameters The trial design incorporated careful control of the dietary changes and strict standardization of blood pressure measurement with a random-zero device The study was extended through June 1997 on FY 1995 funds
The study permitted a more precise estimate of the effects of sodium chloride on blood pressure in Blacks and a systematic examination of sodium sensitivity defined by various methods The results had significance in answering questions about risk factors for blood pressure in Blacks and for defining sodium sensitivity
DESIGN NARRATIVE
Double-blind two-period cross-over All participants were given six weeks of intensive nutritional counseling to lower 24-hour urine sodium output from an estimated 165 mEq24 hours at baseline to less than 140 mEq24 hours Only those participants who excreted less than 140 mEq 24 hours after six weeks of intensive dietary sodium intervention and had greater than 70 percent adherence to study capsules were eligible for randomization Eligible subjects were assigned to one of two treatment sequences 100 mEq of sodium chloride capsules per day during period one followed by placebo capsules during period two placebo capsules during period one followed by 100 mEq of sodium chloride capsules per day during period two The major endpoint was change in diastolic and systolic blood pressure A number of other measures were carried out including blood chemistries glucose tolerance glucose and insulin insulin resistance urinary kallikrein serum renin and plasma norepinephrine Other major aims of the trial included testing general new diagnostic criteria for sodium sensitivity examining predictors of sodium sensitivity and examining how changes in sodium intake influenced change in specific metabolic parameters The trial design incorporated careful control of the dietary changes and strict standardization of blood pressure measurement with a random-zero device The study was extended through June 1997 on FY 1995 funds
Study Oversight
Has Oversight DMC:
Is a FDA Regulated Drug?:
Is a FDA Regulated Device?:
Is an Unapproved Device?:
Is a PPSD?:
Is a US Export?:
Is an FDA AA801 Violation?:
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| R01HL046630 | NIH | None | httpsreporternihgovquickSearchR01HL046630 |