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Vascular Reactivity in Chronic Kidney Disease (CKD) Patients Receiving Paricalcitol Versus Placebo

A

Amy Barton Pai

Status

Completed

Conditions

Chronic Kidney Disease

Treatments

Drug: Placebo
Drug: Paricalcitol

Study type

Interventional

Funder types

Other

Identifiers

NCT00915876
Paricalcitol-AMC2443

Details and patient eligibility

About

This research is studying how Vitamin D may affect blood vessels reaction to stress and blood levels of substances that may increase blockages in the blood vessels in chronic kidney disease (CKD) patients. Blood vessel health is worsened in CKD and some studies have shown that Vitamin D improves blood vessel health. The type of Vitamin D being used in this study (paricalcitol) is Food and Drug Administration (FDA) approved to treat high parathyroid hormone levels. The purpose of this study is to find out if paricalcitol has other benefits beyond its ability to lower parathyroid hormone levels such as improving the blood vessels reaction to stress and decreasing blood levels of substances that may increase blockages in the blood vessels.

Enrollment

41 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Males or females ≥ 18 years of age at the start of screening
  • CKD with eGFR 15-60 mL/min/1.73m2 by MDRD
  • Not expected to start dialysis for 4 months
  • Serum intact PTH 70-200 pg/mL during screening period
  • On stable ACEI/ARB regimen for 30 days prior to screening

Exclusion criteria

  • History of any of the following diseases:

    • congestive heart failure
    • MI within the last 6 months
    • history of cerebrovascular accident
    • significant valvular disease
    • malignancy
  • Currently taking any vitamin D products

  • Mean systolic blood pressure values > 190 or diastolic blood pressure values > 100 mm/Hg during the preceding 30 day period prior to screening

  • Currently being titrated on therapy with an angiotensin converting enzyme inhibitor or angiotensin receptor blocker

  • Two consecutive serum calcium values greater than 10.2 mg/dL or Ca x P > 55 mg2/dL2

  • Currently receiving erythropoiesis stimulating agent or intravenous iron therapy

  • Pregnant or breastfeeding

Trial design

41 participants in 2 patient groups, including a placebo group

Paricalcitol
Active Comparator group
Treatment:
Drug: Paricalcitol
Placebo
Placebo Comparator group
Treatment:
Drug: Placebo

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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