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Kidney Failure, ChronicPhase 4CHAMBERNCT02214563

Cholecalciferol Supplementation for Anemia and Mineral and Bone Disorder in Hemodialysis Patients

A Phase 4 study testing Cholecalciferol and Olive oil in people with Kidney Failure, Chronic and Anemia, run by Takayuki Hamano at 7 sites in Japan.

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 is to determine whether cholecalciferol supplementation decrease the blood concentrations of hepcidin-25 in hemodialysis patients. Read more about this study

Who is it for?
Ages 20 years and older
What is being tested?
Cholecalciferol and Olive oil
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
90 participants
Where
7 sitesJapan
Study dates
Aug 2014to Dec 2016
Phase
Phase 4
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 20 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with end-stage renal disease receiving thrice-weekly maintenance hemodialysis
  • On treatment with erythropoietin stimulating agent
  • With written informed consent

Who cannot join

  • On treatment with epoetin beta pegol as ESA
  • On supplementation with native vitamin D
  • Hypercalcemia (>=10.5 mg/dL of corrected serum calcium)
  • On treatment with intravenous iron agents
  • Judged as ineligible to the randomized study by the investigators

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

Japan7 sites
  • Higashikouri hospital

    Hirakata, Osaka, 573-0075

  • Akebono clinic

    Kumamoto, 861-4112

  • Hyogo Prefectural Nishinomiya Hospital

    Nishinomiya, Hyōgo, 662-0918

  • Obi clinic

    Osaka, 543-0052

  • Nishi clinic

    Osaka, 552-0007

  • Futaba clinic

    Osaka, 559-0013

  • Department of Comprehensive Kidney Disease Research, Osaka University Graduate School of Medicine

    Suita, Osaka, 565-0871

Other trials in Japan

About this study

Official title: Cholecalciferol Supplementation for Anemia and Mineral and Bone Disorder in Hemodialysis Patients (CHAMBER): A Multicenter, Double-blind, Randomized, Placebo-controlled Trial

The purpose of this study is to determine whether cholecalciferol supplementation decrease the blood concentrations of hepcidin-25 in hemodialysis patients.

Read the detailed description

There are 4 arms in this study: (1) Thrice-weekly cholecalciferol supplementation (3,000 IU), (2) Monthly cholecalciferol supplementation (equivalent to 9,000/week), (3) Thrice-weekly placebo, and (4) Monthly placebo. The primary analyses will be done regarding 2 cholecalciferol groups and 2 placebo groups as one group each, and we will evaluate the effect of cholecalciferol regardless of the supplementation regimen. As the secondary analyses, we will examine if there is any difference between thrice-weekly and once-monthly supplementation regimen.

Being tested
Cholecalciferol, Olive oil
Keywords
Vitamin D, Cholecalciferol, Hepcidins, Renal Dialysis
Medical subject headings
Kidney Failure, Chronic, Anemia, Vitamin D Deficiency, Bone Diseases, Metabolic

What participants receive

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

  • CholecalciferolDietary supplement

    Also called vitamin D, vitamin D3

    Made for this trial by Molecular Physiological Chemistry Laboratory, Inc.

  • Olive oilDietary supplement

Study groups in NCT02214563
Study groupRoleWhat they receive
Thrice-weekly cholecalciferolActive comparatorCapsule containing 3,000 IU of cholecalciferol will be given at the end of each hemodialysis session. Dissolved with olive oil and coated by soft capsule made of gelatin and glycerin.
Receives: Dietary Supplement: Cholecalciferol
Monthly cholecalciferolActive comparatorCapsules containing a dose equivalent to 9,000 IU/week will be given at the end of the first hemodialysis session in the 3rd week of each month. Dissolved with olive oil and coated by soft capsule made of gelatin and glycerin.
Receives: Dietary Supplement: Cholecalciferol
Thrice-weekly placeboPlacebo comparatorOlive oil coated by soft capsule made of gelatin and glycerin.
Receives: Dietary Supplement: Olive oil
Monthly placeboPlacebo comparatorOlive oil coated by soft capsule made of gelatin and glycerin.
Receives: Dietary Supplement: Olive oil

What is being measured

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

  1. Serum concentrations of hepcidin-25

    Measured: The 3rd month

  2. Serum concentrations of hepcidin-25

    Measured: The 3rd day

Secondary outcomes (8)
  1. Serum concentrations of hepcidin-25

    Measured: The 6th month

  2. Percent change of erythropoietin resistance index (ERI) overtime

    ERI = Average weekly dose of erythropoiesis-stimulating agents (ESA) over prior 4 weeks / post-dialysis body weight (kg) / Hb (g/dL)

    Measured: Up to the 6th month

  3. Blood concentrations of 1,25-dihydroxyvitamin D, bone specific alkaline phosphatase (BAP), and tartrate-resistant acid phosphatase (TRAcP) 5b

    In the secondary analysis, we will adjust baseline concentrations when comparing the groups.

    Measured: The 3rd month

  4. Blood concentrations of 1,25-dihydroxyvitamin D, bone specific alkaline phosphatase (BAP), and tartrate-resistant acid phosphatase (TRAcP) 5b

    In the secondary analysis, we will adjust baseline concentrations when comparing the groups.

    Measured: The 6th month

  5. Blood concentrations of high-sensitive C reactive protein (CRP), interleukin (IL)-6, and tumor necrosis factor (TNF)-alpha

    In the secondary analysis, we will adjust baseline concentrations when comparing the groups.

    Measured: The 3rd day

  6. Blood concentrations of high-sensitive C reactive protein (CRP), interleukin (IL)-6, and tumor necrosis factor (TNF)-alpha

    In the secondary analysis, we will adjust baseline concentrations when comparing the groups.

    Measured: The 3rd month

  7. Blood concentrations of high-sensitive C reactive protein (CRP), interleukin (IL)-6, and tumor necrosis factor (TNF)-alpha

    In the secondary analysis, we will adjust baseline concentrations when comparing the groups.

    Measured: The 6th month

  8. Blood concentrations of calcium, phosphate, and intact parathyroid hormone overtime

    In the secondary analysis, we will adjust baseline concentrations when comparing the groups.

    Measured: Up to the 6th month

Timeline

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

  1. First posted12 Aug 2014 (estimated)
  2. Study startAug 2014
  3. Primary completionMar 2016
  4. Study completionDec 2016

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
90 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02214563
Sponsor's protocol ID
CKDR-003
Acronym
CHAMBER
Status last verified
Aug 2018
First submitted
10 Aug 2014
Last updated
31 Aug 2018
Results posted
No
Data monitoring committee
No

Publications

  • Obi Y, Yamaguchi S, Hamano T, Sakaguchi Y, Shimomura A, Namba-Hamano T, Mikami S, Nishi O, Tanaka M, Kamoto A, Obi Y, Tomosugi N, Tsubakihara Y, Isaka Y. Effect of cholecalciferol on serum hepcidin and parameters of anaemia and CKD-MBD among haemodialysis patients: a randomized clinical trial. Sci Rep. 2020 Sep 23;10(1):15500. doi: 10.1038/s41598-020-72385-w.

    PubMed 32968158

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Cholecalciferol and Olive oil in people with Kidney Failure, Chronic and Anemia, run by Takayuki Hamano at 7 sites in Japan.

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 5 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 31 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in Japan. 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. Some participants in this study may receive a placebo. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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?

Serum concentrations of hepcidin-25 (time frame: The 3rd month). The study lists 2 primary outcomes in all. 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 NCT02214563, 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 31 Aug 2018.

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