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End Stage Renal DiseasePhase 2NCT00686751

Immune Effects of Vitamin D in Hemodialysis Patients

A Phase 2 study testing paricalcitol in people with End Stage Renal Disease and Hemodialysis, run by Renal Research Institute at 3 sites 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

The purpose of this study to examine whether vitamin D can reduce the activation of the immune system during dialysis. When activated, the immune cells release certain substances, called cytokines, which can be measured from small blood samples. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
paricalcitol
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
3 sitesUnited States
Study dates
Dec 2004to Sep 2007
Phase
Phase 2
Are there results?
None posted in the registry

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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient stable on chronic hemodialysis for more than 3 months.
  • PTH level between 150 - 800 pg/ml.
  • Ability to give informed consent.
  • Serum calcium levels (corrected for albumin level of 4.0 g/dL) less than 10.5 mg/dL for the last three consecutive measurements.
  • Serum Phosphorus levels between 2.5 and 7.0 mg/dL for the last three consecutive measurements.
  • Ca x P-Product of less than 75 mg2/dL2 in the last three consecutive measurements.

Who cannot join

  • Known active malignancy.
  • Liver disease defined as serum aspartate aminotransferase, alanine aminotransferase, or gamma-glutamyltransferase levels more than 2 times the upper limits of normal.
  • PTH levels between 150 pg/mL and 800 pg/mL.
  • Hypercalcemia or hypercalcemic episodes within the last 4 weeks.
  • Ca x P-Product more than 75 mg2/dL2 within the last 4 weeks.
  • Any clinical significant infections which are or have been treated with antibiotics within 6 weeks prior to start of the study.
Show all 14Show fewer
  • Chronic viral infection (HIV, Hepatitis B or C).
  • Currently on immunosuppressive medication (steroids, cyclosporine, etc…).
  • Hematocrit less than 30 %.
  • History of blood disorders other than renal anemia.
  • Age of less than 18 years or more than 75 years.
  • Hypersensitivity to paricalcitol or any ingredient of the product.
  • Parathyroidectomy.
  • Participation in another study at the same time.

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Irving Place Dialysis Center

    New York, New York, 10003

  • Upper Manhattan Dialysis Center

    New York, New York, 10025

  • Yorkville Dialysis Center

    New York, New York, 10128

Other trials in United States

About this study

Official title: Immunomodulatory Effects of Vitamin D in Chronic Hemodialysis Patients

The purpose of this study to examine whether vitamin D can reduce the activation of the immune system during dialysis. When activated, the immune cells release certain substances, called cytokines, which can be measured from small blood samples. We want to study to what degree the immune system is activated during a regular dialysis treatment and whether the time point of vitamin D administration, either right before the start or right at the end of a dialysis treatment, has an impact on the activation of the immune system.

Being tested
paricalcitol
Medical subject headings
Kidney Failure, Chronic, Cardiovascular Diseases

What participants receive

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

  • paricalcitolDrug

    Dosage Form: Intravenous administration. Dosage: 0.01 micrograms/kilogram of body weight. Frequency: 2 HD treatments of each study week (depending on phase of study). Duration: 4 weeks.

Study groups in NCT00686751
Study groupRoleWhat they receive
AExperimentalThere is only one arm in this study. Each subject will be studied through 3 phases lasting a total of 4 weeks: Phase 1: administration of study medication at the end of hemodialysis treatment. Phase 2: no administration of study medication. Phase 3: administration of study medication at the beginning of hemodialysis.
Receives: Drug: paricalcitol

What is being measured

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

  1. measurement of pro- and anti-inflammatory cytokines and inflammatory markers

    Measured: first and second HD treatments for the 4 weeks of the study

Secondary outcomes (2)
  1. serum calcium level

    Measured: 24 hours after termination of second HD treatment in week 3 of study

  2. serum phosphate level

    Measured: 24 hours after termination of second HD treatment in week 3 of study

Timeline

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

  1. First posted30 May 2008 (estimated)
  2. Study startDec 2004
  3. Primary completionSep 2007
  4. Study completionSep 2007

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 2
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00686751
Sponsor's protocol ID
223-04
Status last verified
May 2009
First submitted
27 May 2008
Last updated
13 May 2009
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing paricalcitol in people with End Stage Renal Disease and Hemodialysis, run by Renal Research Institute at 3 sites 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 6 inclusion and 14 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 13 May 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

measurement of pro- and anti-inflammatory cytokines and inflammatory markers (time frame: first and second HD treatments for the 4 weeks of the study). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 13 May 2009.

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