Renal Osteodystrophy: A Fresh Approach

There are two major goals of this project:

1. Comparison of DXA and QCT for diagnosis of bone loss in CKD-5 patients and determination of the prevalence of low bone turnover in CKD-5 patients with bone loss. 2. Identification of the optimal combination of noninvasive tests for definition of the turnover component of ROD.

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Key information

Conditions

Renal Osteodystrophy Avitaminosis Bone Diseases Bone Diseases, Metabolic Calcium Metabolism Disorders Chronic Disease Chronic Kidney Disease-Mineral and Bone Disorder Deficiency Diseases Disease Attributes Endocrine System Diseases Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Hyperparathyroidism Hyperparathyroidism, Secondary Kidney Diseases Male Urogenital Diseases Malnutrition Metabolic Diseases Musculoskeletal Diseases Nutrition Disorders Nutritional and Metabolic Diseases Parathyroid Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms Rickets Urogenital Diseases Urologic Diseases Vitamin D Deficiency

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Kentucky

Lexington, Kentucky, 40536, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Aged 18 years or older;
Chronic maintenance dialysis of at least 3 months' duration;
Mental competence;
Willingness to participate in the study;
Calcidiol levels within normal range.

Exclusion criteria

Pregnancy;
Systemic illnesses or organ diseases that may affect bone (except type 1 or type 2 diabetes mellitus);
Clinical condition that may limit study participation (e.g., unstable angina, respiratory distress, infections).
Chronic alcoholism and/or drug addiction;
Participation in a study of an investigational drug during the past 90 days;
Allergy to tetracycline.
Planning to move out of the area within 2 years of the study;
On active transplant list;
Treatment within last 6 months with drugs that may affect bone metabolism (except for treatment with calcitriol, vitamin D analogs and/or calcimimetics).
Calcidiol level below the normal range. The current routine clinical practice in our dialysis clinics is to check calcidiol status twice yearly and supplement with vitamin D according to serum calcidiol levels. It is therefore unlikely that a substantial number of patients will be excluded due to this exclusion criterion.

Treatment and study plan

Primary outcomes

Comparison of DXA and QCT for diagnosis of bone loss in CKD-5 patients and determination of the prevalence of low bone turnover in CKD-5 patients with bone loss.

Time frame: 4 years

Because each method (QCT or DXA) yields a dichotomous response (bone loss: yes or no), the proportion of patients with a bone loss will be compared between the 2 methods by using the McNemar statistic for correlated proportions.

Secondary outcomes

Identification of the optimal combination of noninvasive tests for definition of the turnover component of ROD.

Time frame: 4 years

A stepwise logistic model will be used to determine which combination of PTH and bone markers best predicts low bone turnover.

Sponsors and collaborators

Lead sponsor

Hartmut Malluche, MD

Other

Registry information

Important dates

Study start: 2009
Primary completion: 2014
Study completion: 2014
First posted: Mar 11, 2009
Registry last updated: May 5, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed