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Antihypertensive Medication Exposure as Risk for Impaired Glucose Tolerance: A PEAR Sub-Study

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University of Florida

Status

Completed

Conditions

Prediabetic State

Treatments

Other: Oral glucose tolerance test

Study type

Observational

Funder types

Other

Identifiers

NCT01099397
U01GM074492
UFIRB2372009 - N

Details and patient eligibility

About

The purpose of this study is to determine if, in a subset of patients treated with a beta-blocker and diuretic, prediabetes is detectable to a greater extent through a 2-hour oral glucose tolerance test (OGTT) compared to fasting glucose measurement.

Full description

Beta-blockers and diuretics have a well-established role in treating hypertension and are frequently used first-line. However, it is increasingly evident that these medications have harmful metabolic effects. The Pharmacogenomic Evaluation of Antihypertensive Responses (PEAR - NCT00246519) study was a greater than 700 participant, randomized, parallel assignment trial, aimed at determining the genetic factors that influence response to both a beta-blocker (atenolol) and a diuretic (hydrochlorothiazide [HCTZ]). The PEAR trial design includes evaluation at baseline, after monotherapy with either medication, and after combination therapy with both medications. This pilot, PEAR sub-study aims to characterize the ability of two diagnostics tests (fasting glucose versus glucose 2-hours after an OGTT) to detect prediabetes development prior to blood pressure medication use, after monotherapy (with atenolol or HCTZ) and after combination therapy (with atenolol and HCTZ).

Enrollment

26 patients

Sex

All

Ages

18 to 65 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • participation in PEAR:

    • an average seated home DBP > 85 mmHg and home SBP < 180 mmHg.
    • subjects must also have an average seated (> 5 minutes) clinic DBP between 90 mmHg and 110 mmHg and SBP < 180 mmHg.

Exclusion criteria

  • secondary forms of HTN,
  • patients currently treated with three or more antihypertensive drugs, isolated systolic HTN,
  • other diseases requiring treatment with BP lowering medications,
  • heart rate < 55 beats/min,
  • known cardiovascular disease (including history of angina pectoris, heart failure, presence of a cardiac pacemaker, history of myocardial infarction or revascularization procedure, or cerebrovascular disease, including stroke and TIA),
  • diabetes mellitus (Type 1 or 2),
  • renal insufficiency (serum creatinine > 1.5 in men or 1.4 in women),
  • primary renal disease,
  • pregnancy or lactation,
  • liver enzymes > 2.5 upper limits of normal,
  • current treatment with NSAIDS,
  • COX2-inhibitors,
  • oral contraceptives or estrogen.

Trial design

26 participants in 1 patient group

PEAR Participants
Description:
All participants eligible for PEAR study. Each participant will be have fasting and oral glucose tolerance test data collected.
Treatment:
Other: Oral glucose tolerance test

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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