Vitamin D in Dialysis Patients - Diagnostic and Therapeutic Management

August 23, 2024 updated by: Medical University of Gdansk

The goal of this observational study is to learn about the effects of cholecalciferol administration, according to guidelines for the general population, on laboratory parameters of Chronic Kidney Disease-Mineral and Bone Disorder in dialysis patients, depending of the attained levels of vitamin D (25OH)D).

The main question it aims to answer is:

How does cholecalciferol affect calcium and phosphate metabolism parameters depending on the achieved levels of 25(OH)D?

Participants taking cholecalciferol as part of their regular medical care for CKD-MBD will have the laboratory result parameters observed for up to 4 years.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The analysis will involve data obtained from medical records of dialysis patients who receive standard procedures consistent with national and international guidelines for specialized care.

Specifically, we will analyze the levels of:

  • 25(OH)D,
  • 1,25(OH)2D
  • Calcium
  • Phosphates
  • PTH
  • FGF23
  • GDF15 to assess the efficacy and safety of cholecalciferol in dialysis patients.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
160

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Poland
      • Gdańsk, Poland, 80-211
        • Recruiting
        • Medical University of Gdansk
        • Contact:
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients will be recruited in Department of Nephrology Transplantology and Internal Medicine, Medical University of Gdansk

Description

Inclusion Criteria:

  • CKD stage 5,dialysed patients with vitamin D deficiency or insufficiency (level of 25(OH)D < 30 ng/mL)

Exclusion Criteria:

  • dialysis time of less than 3 months
  • inadequately controled secondary hyperparathyroidism (iPTH>800pg/mL)
  • treatment with calcimimetics
  • treatment with active forms of vitamin D3,
  • parathyroidectomy
  • bilateral nephrectomy
  • treatment with corticosteroids
  • lack of consent to take part in the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
25(OH)D < 30 ng/mL
Dialysed patients with vitamin D level (25(OH)D) < 30 ng/mL administered cholecalciferol
Drug: Cholecalciferol

The patients with vitamin D (25(OH)D) levels < 30 ng/mL, and 30-50 ng/ml will recieve a dose of cholecalciferol at 70,000 IU per week (20,000 IU + 20,000 IU + 30,000 IU per week).

In the patients with 25(OH)D levels 50-80 ng/mL the dose of cholecalciferol will be adjusted to avoid exceeding the upper limit of the laboratory norm.
25(OH)D 30 - 49.9 ng/mL
Dialysed patients with vitamin D level (25(OH)D) 30-49.9 ng/mL administered cholecalciferol
Drug: Cholecalciferol

The patients with vitamin D (25(OH)D) levels < 30 ng/mL, and 30-50 ng/ml will recieve a dose of cholecalciferol at 70,000 IU per week (20,000 IU + 20,000 IU + 30,000 IU per week).

In the patients with 25(OH)D levels 50-80 ng/mL the dose of cholecalciferol will be adjusted to avoid exceeding the upper limit of the laboratory norm.
25(OH)D 50-80 ng/mL
Dialysed patients with vitamin D level (25(OH)D) 50-80 ng/mL administered cholecalciferol
Drug: Cholecalciferol

The patients with vitamin D (25(OH)D) levels < 30 ng/mL, and 30-50 ng/ml will recieve a dose of cholecalciferol at 70,000 IU per week (20,000 IU + 20,000 IU + 30,000 IU per week).

In the patients with 25(OH)D levels 50-80 ng/mL the dose of cholecalciferol will be adjusted to avoid exceeding the upper limit of the laboratory norm.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
efficacy and safety of cholecalciferol therapy in dialysed patients
Time Frame: 2022-2026
analysis of - vitamin D levels - 25(OH)D, 1,25(OH)2D, calcium-phosphate metabolism parameters (serum calcium, phosphate, PTH levels),FGF23, GDF15 levels, in 3 groups of patients achieving different range of 25(OH)D levels
2022-2026

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Medical University of Gdansk

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Leszek Tylicki, Prof., Medical University of Gdansk

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2022

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 22, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 23, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 26, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 26, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 23, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • NKBBN/783/2022

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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