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Vitamin Metabolism in Kidney Disease

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified September 2012 by Henrik Birn, Aalborg Hospital.
Recruitment status was:  Recruiting
University of Aarhus
Aarhus University Hospital
Information provided by (Responsible Party):
Henrik Birn, Aalborg Hospital Identifier:
First received: November 21, 2005
Last updated: September 24, 2012
Last verified: September 2012
The purpose of this study is to evaluate the urinary excretion and renal metabolism of vitamins, in particular vitamin B12 and folate, in relation to various renal conditions involving loss of renal function and/or proteinuria.

Kidney Failure

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Vitamin Metabolism in Kidney Disease

Resource links provided by NLM:

Further study details as provided by Henrik Birn, Aalborg Hospital:

Estimated Enrollment: 100
Study Start Date: December 2005
Elevated se-creatinine + proteinuria
Healthy controls
Healthy controls, normal se-creatinine, no proteinuria


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
  1. CKD, proteinuria
  2. Healthy controls

Inclusion Criteria:

  • Admission to the Department of Nephrology, Aalborg Hospital
  • Elevated serum creatinine
  • Proteinuria
  • Informed and written consent

Control subjects:

  • Normal serum creatinine and creatinine clearance
  • No proteinuria

Exclusion Criteria:

  • Vitamin supplementation (exceeding predefined values)
  • Renal replacement therapy (dialysis)
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00257439

Contact: Lars Mølby, MD 9932 1111 ext 2241

Department of Nephrology, Aalborg Hospital Recruiting
Aalborg, Denmark, DK-9000
Contact: Jakob Sølling, MD, PhD    +45 9932 1111 ext 2237   
Principal Investigator: Henrik Birn, MD, PhD         
Sponsors and Collaborators
Aalborg Universitetshospital
University of Aarhus
Aarhus University Hospital
Principal Investigator: Henrik Birn, MD, PhD Department of Nephrology, Aalborg Hospital
  More Information

Responsible Party: Henrik Birn, MD, Aalborg Hospital Identifier: NCT00257439     History of Changes
Other Study ID Numbers: VN 2005/44
Study First Received: November 21, 2005
Last Updated: September 24, 2012

Keywords provided by Henrik Birn, Aalborg Hospital:
Vitamin B12
Folic Acid

Additional relevant MeSH terms:
Kidney Diseases
Renal Insufficiency
Urologic Diseases
Growth Substances
Physiological Effects of Drugs processed this record on May 25, 2017