Vitamin D Therapy to Reduce Cardiac Damage Among Vulnerable Hypertensive Patients (AdDReaCH)

This study is currently recruiting participants. (see Contacts and Locations)
Verified November 2013 by Wayne State University
Sponsor:
Collaborator:
Information provided by (Responsible Party):
Phillip D. Levy, Wayne State University
ClinicalTrials.gov Identifier:
NCT01360476
First received: May 19, 2011
Last updated: November 6, 2013
Last verified: November 2013

May 19, 2011
November 6, 2013
August 2011
August 2015   (final data collection date for primary outcome measure)
Change from Baseline in left ventricular hypertrophy at 1 year [ Time Frame: baseline, 16weeks, 52weeks ] [ Designated as safety issue: No ]
Cardiac MRI will be used to assess this change.
Same as current
Complete list of historical versions of study NCT01360476 on ClinicalTrials.gov Archive Site
Not Provided
Not Provided
Not Provided
Not Provided
 
Vitamin D Therapy to Reduce Cardiac Damage Among Vulnerable Hypertensive Patients
Adjunct Vitamin D Therapy as a Means to Reduce the Disparity in Subclinical Target Organ Cardiac Damage Among Vulnerable Hypertensive Patients

This project seeks to reduce the disparity in hypertensive heart disease which exists for African-Americans who have poorly controlled hypertension (HTN), also known as blood pressure (BP). The investigators are targeting a highly vulnerable, often neglected subject population which stands to benefit tremendously from better BP control and a corresponding decrease in heart damage. HTN occurs early in life and more often in African-Americans, reducing both quality and quantity of life. Inner-city African-Americans with HTN utilize the emergency department (ED) for chronic BP management. Like cardiovascular disease, vitamin D deficiency disproportionately affects African-Americans. Vitamin D is thought to play an important role in cardiovascular health. Vitamin D replacement in those who are deficient has been thought to reduce the cardiovascular disease, especially if initiated early before irreversible damage has occurred, but this has yet to be tested in a prospective clinical trial. Accordingly, this proposal was designed to investigate the relationship between vitamin D and cardiac damage (as identified on cardiac magnetic resonance imaging) in a cohort of African-American, vitamin D deficient hypertensive patients without prior history of heart disease.

The primary objective of this proposal is to evaluate the efficacy of vitamin D therapy in vitamin D deficient African-Americans with HTN. Vitamin D is an inexpensive treatment, which, if shown to be effective could improve the existing approach to a widely accessible, cost-effective option.

Not Provided
Interventional
Not Provided
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
  • Hypertension
  • Left Ventricular Hypertrophy
  • Dietary Supplement: cholecalciferol (Vitamin D)
    50,000 UI, chewable wafer every 2 weeks for 52 weeks (27 total doses)
  • Dietary Supplement: Placebo
    chewable wafer every 2 weeks for 52 weeks (27 total doses)
  • Active Comparator: Vitamin D
    Intervention: Dietary Supplement: cholecalciferol (Vitamin D)
  • Placebo Comparator: placebo
    Intervention: Dietary Supplement: Placebo
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruiting
267
November 2015
August 2015   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Individuals with known HTN
  • African-American race (self reported)
  • Repeat SBP ≥ 160 mmHg within 1 hour of arrival
  • Age 30-74 years
  • Asymptomatic state (class I as defined by Goldman Specific Activity Scale)

Exclusion Criteria:

  • Dyspnea (exertional, rest or nocturnal) or chest pain as a primary or secondary chief complaint
  • Prior history of HF, coronary artery disease, myocardial infarction, cardiomyopathy (any), valvular heart disease (any) or renal failure with current, previous, or planned future dialysis
  • Acute illness or injury which necessitates hospital admission
  • Acute alcohol or cocaine intoxication or history of chronic alcohol (determined using the CAGE screening questions) or cocaine (self-reported) abuse
  • Acute or decompensated psychiatric disorder or any underlying psychiatric disorder or cognitive deficit which precludes effective on-going communication or ability to follow-up as required
  • Cancer (other than skin), HIV, or any other medical condition that might limit life expectancy
  • Hepatitis or liver enzyme (ALT, AST) elevations > 1.5x normal
  • Planned move > 50 miles in the next 9 months
  • History of kidney stones
  • GFR <30
  • Serum calcium > 10.5 mg/dl or known history of hypercalcemia
  • History of or known primary hyperparathyroidism
  • Sarcoidosis or other granulomatous disease
  • Pregnant or planning to become pregnant
  • Allergy or known hypersensitivity to gadolinium contrast
  • Severe claustrophobia
Both
30 Years to 74 Years
No
Contact: LynnMarie C Mango, MPH 313-966-7253 Lmmango@med.wayne.edu
United States
 
NCT01360476
1 R01 MD005849-01A1
Yes
Phillip D. Levy, Wayne State University
Wayne State University
National Center on Minority Health and Health Disparities (NCMHD)
Principal Investigator: Phillip D Levy, MD Wayne State University
Wayne State University
November 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP