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Vitamin D DeficiencyNCT01175798

Impact of Vitamin D Repletion in Hemodialysis Patients

A study testing Cholecalciferol in people with Vitamin D Deficiency and End-stage Renal Disease, run by Mehrotra, Anita, M.D. at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Dialysis patients often suffer from defects in their immune system (that part of the body which fights infection). Evidence suggests that Vitamin D deficiency may have a negative effect on immunity, and many dialysis patients are deficient in Vitamin D. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Vitamin D Deficiency, End-stage Renal Disease
What is being tested?
Cholecalciferol
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
116 participants
Where
1 siteUnited States
Study dates
Aug 2010to Aug 2013
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age > 18 years
  • Chronic hemodialysis treatments for at least 2 consecutive months
  • 25OH-Vitamin D level < 25 ng/mL (inclusion criteria for randomization)

Who cannot join

  • History of acute renal failure requiring dialysis with potential for renal recovery
  • History of HIV/AIDS
  • Inability to provide informed consent

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Mount Sinai School of Medicine

    New York, New York, 10029

Other trials in United States

About this study

Official title: Immunologic Impact of Vitamin D Repletion in Hemodialysis Patients: A Randomized Controlled Trial

Dialysis patients often suffer from defects in their immune system (that part of the body which fights infection). Evidence suggests that Vitamin D deficiency may have a negative effect on immunity, and many dialysis patients are deficient in Vitamin D. We believe that by giving Vitamin D to dialysis patients who are deficient, we may help improve their immune system. This study will test that idea.

Read the detailed description

Innate and adaptive immunity are commonly impaired in patients with end stage renal disease (ESRD) on dialysis. The myriad of immune defects in these patients, often attributed to uremia, may account for their high risk of bacterial infection and suboptimal responses to vaccination. The mechanisms underlying these abnormalities in immune function remain elusive, but emerging evidence indicates that 25OH-Vitamin D exerts potent and complex control over innate and adaptive immunity. Vitamin D deficiency is common in dialysis patients, and the immune effects associated with 25OH-Vit D deficiency overlap with those found in many dialysis patients. The kidney is the dominant site of 1-alpha-hydroxylase activity required for producing active 1,25OH-Vit D; however, immune cells also express the 1-alpha-hydroxylase enzyme. Evidence indicates the effects of Vitamin D on modulating immunity require conversion of 25OH-Vit D to 1,25OH-Vit D within the immune cells (rather than via circulating 1,25OH-Vit D). As a consequence, total body deficiency of 25OH-Vit D can impact immune function despite ongoing therapy with active 1,25OH-Vit D (which most dialysis patients are receiving). Our preliminary data confirm the high prevalence of 25OH-Vit D deficiency in dialysis patients and show that Th1 T cell alloimmunity is stronger in patients deficient in 25OH-Vit D, supporting the hypothesis that Vit D deficiency has important immunological consequences. Based on the published literature and our preliminary data, we hypothesize that repletion of 25OH-Vit D enhances immunity in dialysis patients. To test this hypothesis, we propose a randomized controlled trial of oral 25OH-Vit D repletion in this patient population. One hundred fifty 25OH-Vit D deficient study subjects will be randomized to either treatment with 50,000 IU oral 25OH-Vit D weekly or no treatment (standard of care). The primary outcome of change in 25OH-Vit D level will be measured at 6 weeks, 3 months, 6 months, and 12 months. Secondary outcomes to be measured include change in peripheral blood mononuclear cell (PBMC) profile by flow cytometry at 6 and 12 months, change in ELISPOT-based panel of reactive T cell (PRT) readout at 6 and 12 months, change in PMBC cytokine production in response to toll-like-receptor stimulation at 6 and 12 months, and response to influenza vaccination.

Being tested
Cholecalciferol
Keywords
Vitamin D deficiency, End-stage renal disease, Immunity
Medical subject headings
Vitamin D Deficiency, Kidney Failure, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01175798
Study groupRoleWhat they receive
No treatment (standard of care)No interventionPatients will be randomized in a 3:2 ratio to oral Vitamin D treatment, or standard of care (no repletion).
Vitamin D repletionExperimentalPatients will be randomized in a 3:2 ratio to oral Vitamin D treatment, or standard of care (no repletion).
Receives: Drug: Cholecalciferol

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in 25OH-Vitamin D Level

    Vitamin D deficient study subjects will be randomized to either treatment with 50,000 IU oral 25OH-Vit D weekly or no treatment (standard of care). The primary outcome of change in 25OH-Vit D level will be measured at 6 weeks, 3 months, 6 months, and 12 months.

    Measured: 1 year

Secondary outcomes (1)
  1. Change in Immune Parameters

    Secondary outcomes to be measured include change in peripheral blood mononuclear cell (PBMC) profile by flow cytometry at 6 and 12 months, change in ELISPOT-based panel of reactive T cell (PRT) readout at 6 and 12 months, change in PMBC cytokine production in response to toll-like-receptor stimulation at 6 and 12 months, and response to influenza vaccination.

    Measured: 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Aug 2010 (estimated)
  2. Study startAug 2010
  3. Primary completionAug 2013
  4. Study completionAug 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
116 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01175798
Sponsor's protocol ID
09-2275
Status last verified
Sep 2014
First submitted
3 Aug 2010
Last updated
22 Sep 2014
Data monitoring committee
Yes

Publications

  • Li L, Lin M, Krassilnikova M, Ostrow K, Bader A, Radbill B, Uribarri J, Tokita J, Leisman S, Lapsia V, Albrecht RA, Garcia-Sastre A, Branch AD, Heeger PS, Mehrotra A. Effect of cholecalciferol supplementation on inflammation and cellular alloimmunity in hemodialysis patients: data from a randomized controlled pilot trial. PLoS One. 2014 Oct 8;9(10):e109998. doi: 10.1371/journal.pone.0109998. eCollection 2014.

    PubMed 25296334

Questions about this trial

What is this clinical trial studying?

A study testing Cholecalciferol in people with Vitamin D Deficiency and End-stage Renal Disease, run by Mehrotra, Anita, M.D. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 22 Sep 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 22 Sep 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in 25OH-Vitamin D Level (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01175798, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Sep 2014.

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