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Effects of Quinapril 40 mg With Alpha Lipoic Acid or Placebo on Diabetes and Hypertension

A 22-week Randomized, Cross-over Study Comparing the Effects of Quinapril and Quinapril Plus Alpha-lipoic Acid (ALA) on Patients With Diabetes Mellitus and Hypertension

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00795262
Acronym
QUALITY
Enrollment
23
Registered
2008-11-21
Start date
2008-07-31
Completion date
2009-07-31
Last updated
2011-05-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes, Hypertension

Keywords

brachial artery reactivity

Brief summary

We will evaluate the combination of quinapril and alpha lipoic acid in patients with diabetes mellitus and hypertension. We will determine whether the combination of quinapril and lipoic acid as compared to quinapril and placebo provides benefit on systemic blood pressure and proteinuria.

Detailed description

The participant will be randomized to either quinapril 40 mg and alpha lipoic acid versus quinapril 40 mg and placebo for 8 weeks. There will be a wash out period of 4 weeks between the cross over. The participant will be assigned the cross over for 8 weeks on the opposite therapy.

Interventions

DRUGQuinapril (Accupril) plus Alpha Lipoic Acid

Patients in Arm 2 (n=20) will receive quinapril 40 mg and Alpha Lipoic Acid (600 mg/day)for an 8-week treatment period (Treatment A).

DRUGaccupril, placebo

accupril 40 mg

DRUGaccupril, alpha lipoic acid

accupril (quinapril) 40 mg plus alpha lipoic acid 600 mg

Sponsors

InVasc Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Patients who have a diagnosis of diabetes mellitus as defined by fasting blood glucose levels greater than ot equal to 126mg/dL and a systolic BP greater than 125 mm Hg at the time of screening will be included in the study. Patients may be on antihypertensive medication but not on ACE inhibitor or ARB therapy at the time of enrollment.

Exclusion criteria

Systolic blood pressure \> 180 mmHg Creatinine \> 2.5 mg/dl Glycosylated hemoglobin \> 7.5% Congestive heart failure (NYHA Class II, III or IV) Coronary angiography planned prior to baseline sampling Chronic autoimmune disease Chronic inflammatory disease or known cancer in evolution life expectancy \< 1 year Immunosuppressives or treatment with any other investigational drug within the last 30 days Pregnant or nursing women Participants who experience any side effects to quinapril and/or alpha lipoic acid Women of childbearing potential Women of childbearing potential enrolled in the study should use one of the acceptable methods of birth control as listed below 1. Abstinence, meaning a total lack of any sexual activity. 2. Oral contraceptives (the pill), 3. Contraceptive injections, 4. Intrauterine device, 5. Double-barrier method (diaphragm or condom + spermicidal cream), 6. Contraceptive patch, or 7. Male partner sterilization. Pregnancy Any pregnancy that occurs during study participation must be reported to the Principal Investigator and the study coordinator at the earliest. The pregnancy must be followed up to determine outcome and status of the mother and child. To ensure subject safety, any subject that becomes pregnant during the study will be discontinued from the trial.

Design outcomes

Primary

MeasureTime frame
Comparison of relative change of systolic BP/diastolic BP and urinary albumin excretion from baseline in diabetic patients treated with quinapril plus lipoic acid versus quinapril and placebo.The total study period is 22 weeks i.e. the initial prescreening visit followed 1 week later by the baseline study visit, 8 weeks of treatment (Treatment A or B), 4 weeks washout, 8 weeks of treatment (Treatment A or B).

Secondary

MeasureTime frame
Comparison of patients treated with quinapril plus lipoic acid versus quinapril plus placebo in the following areas: a) Changes from baseline in high sensitivity C-reactive protein, adiponectin, and leptinat baseline (week-1), weeks 8, 12 and 20.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026