Anti-Inflammatory Actions of Valsartan in Patients With Type 2 Diabetes Mellitus

Last updated: September 22, 2009
Sponsor: Charite University, Berlin, Germany
Overall Status: Completed

Phase

4

Condition

Diabetes Mellitus, Type 2

Atherosclerosis

Myocardial Ischemia

Treatment

N/A

Clinical Study ID

NCT00982358
CVAL489A2423
Ek#2140
  • Ages 30-80
  • All Genders

Study Summary

This study is designed to support the use of valsartan in the diabetic population. Two different groups will be studied, one with and one without coronary artery disease (CAD) documented by angiography.

The study is intended to demonstrate that valsartan 320 mg has an anti-inflammatory potential, reducing inflammatory serum markers as well as inflammatory gene expression, and to show that valsartan is able to improve metabolic parameters in this patient population. Furthermore, in the subgroup of patients with documented CAD this study wants to show that valsartan improves coronary perfusion.

3 Objectives

Primary objectives:

  1. To demonstrate the anti-inflammatory efficacy of valsartan 160/320 mg by testing the hypothesis of superiority compared to placebo in the reduction of the inflammatory marker Tumor necrosis factor alpha (TNFα) in plasma after 16 weeks of treatment in hypertensive patients with type 2 diabetes mellitus.

  2. To demonstrate the anti-inflammatory efficacy of valsartan 160/320 mg by testing the hypothesis of superiority compared to placebo in the reduction of the inflammatory marker Interleukin 6 (IL-6) in plasma after 16 weeks of treatment in hypertensive patients with type 2 diabetes mellitus.

Secondary objectives:

  1. To explore the effect of 160/320 mg valsartan on parameters of insulin sensitivity.

  2. To explore the effect of 160/320 mg valsartan on additional inflammatory markers in plasma [e.g. C-Reactive protein (CRP), soluble intracellular adhesion molecule-1 (sICAM-1), soluble vascular cell adhesion molecule-1 (sVCAM-1), serum amyloid A (SAA), soluble CD40 ligand (sCD40L), fibrinogen, Interleukin 1β (IL-1β), matrix metalloproteases -2, -3 and -9 (MMP-2, -3, -9), and sE-selectin)].

  3. To explore the effect of 160/320 mg valsartan on inflammatory gene expression from monocytes and fat tissue.

  4. To explore the effect of 160/320 mg valsartan on metabolic gene expression in fat tissue.

  5. To explore the effect of 160/320 mg valsartan on coronary perfusion, in the group of patients with angiographically documented CAD.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Male or female patients between 30 and 80 years old, inclusive

  • Controlled type 2 Diabetes Mellitus on stable treatment at least during the 4 weeksprior to visit 1

  • Treated or untreated stage 1 (according to JNC VII Guidelines) or grade 1 (accordingto ESH/ESC 2003 Guidelines) hypertensive patients

  • For one stratum: angiographically proven CAD

  • Signed informed consent prior to any study procedure

Exclusion

Exclusion Criteria:

  • Hypertension classified as stage 2 (or grade 2) or higher

  • Normotensive patients, i.e. patients who do not have a history of high blood pressure,and who are not receiving any antihypertensive medication

  • Treatment with more than 2 antihypertensive medications

  • Current treatment with ARBs

  • Glycated hemoglobin (HbA1c) >8.5% at Visit 1

  • Current treatment with glitazones

  • Myocardial infarction less than 3 months prior to Visit 1

  • Total cholesterol >7.8 mmol/l

  • Past diagnosis of any systemic inflammatory disease

  • Known or suspected contraindications, including history of allergy to angiotensinreceptor blockers

  • History of hypertensive encephalopathy or cerebrovascular accident less than 1 yearprior to Visit 1

  • Known Keith-Wagener grade III or IV hypertensive retinopathy

  • History of heart failure

  • Second or third degree heart block without a pacemaker

  • Concomitant unstable angina pectoris

  • Concurrent potential life threatening arrhythmia or symptomatic arrhythmia

  • Clinically significant valvular heart disease

  • Evidence of hepatic disease as determined by any one of the following: ALT or ASTvalues > 2 x ULN at Visit 1, a history hepatic encephalopathy, a history of esophagealvarices, or a history of portocaval shunt

  • Evidence of renal impairment as determined by any one of the following: serumcreatinine >1.25 x ULN at visit 1, a history of dialysis, or a history of nephriticsyndrome

  • Sodium value <132 mmol/L at Visit 1

  • Serum potassium values <3.5 mmol/L or >5.5 mmol/L at visit 1

  • Any surgical or medical condition which might alter the absorption, distribution,metabolism, excretion of any drug

  • Female patients who are not either post-menopausal for one year of surgically sterile,and who are not using effective contraceptive methods such as barrier method withspermicidal or an intra-uterine device. Oral contraceptive use or dermal implants asthe only means of contraception are disallowed

  • Pregnant or lactating females

  • Any surgical or medical condition which, at the discretion of the investigator, placethe patient at higher risk from his/her participation in the study, or are likely toprevent the patients from complying with the requirements of the study or completingthe trial period

  • History of malignancy including leukemia and lymphoma within 5 years prior to Visit 1

  • History of any severe, life threatening disease within the past five years

  • Any previous history of a systemic autoimmune disease

  • History of drug or alcohol abuse within the last two years

  • Participation in any investigational drug trial within one month prior to visit 1

Study Design

Total Participants: 121
Study Start date:
July 01, 2004
Estimated Completion Date:
March 31, 2007

Connect with a study center

  • University of Ulm, Department of Internal Medicine II

    Ulm, Baden-Wuerttemberg 89081
    Germany

    Site Not Available

  • Charité University Medicine Berlin, Center for Cardiovascular Research, Outpatient Clinic

    Berlin, 10115
    Germany

    Site Not Available

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