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Chronic Kidney Disease on HemodialysisPhase 2NCT00667576

Dose-response Study of Paricalcitol Injection in Chronic Kidney Disease Patients Receiving Hemodialysis

A Phase 2 study testing Maxacalcitol and Paricalcitol in people with Chronic Kidney Disease on Hemodialysis and Secondary Hyperparathyroidism, run by Abbott at 12 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 was to investigate the initial dose and dose adjustment range for paricalcitol injection in patients with chronic kidney disease on hemodialysis who have secondary hyperparathyroidism. Read more about this study

Who is it for?
Ages 20 years and older
What is being tested?
Maxacalcitol and Paricalcitol
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
153 participants
Where
12 sitesJapan
Study dates
Apr 2008to Mar 2009
Phase
Phase 2
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 20 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosed with chronic kidney disease receiving hemodialysis 3 times a week for at least 3 months prior to obtaining the informed consent and scheduled to be receiving the same hemodialysis during the study period.
  • Using dialysate with constant concentration of calcium for 4 weeks prior to obtaining informed consent and phosphate binder with constant dose regimen for 2 weeks prior to obtaining informed consent.
  • Intact parathyroid hormone level (iPTH) ≥ 300 pg/mL
  • Calcium (adjusted) 8.4-10.2 milligrams/deciliter (mg/dL)
  • Phosphorus ≤ 6.5 mg/dL
  • Age ≥ 20 years

Who cannot join

  • History of allergic reaction or significant sensitivity to vitamin D or vitamin D related compounds
  • Parathyroidectomy or ethanol infusion within past year
  • Progressive malignancy or clinically significant hepatic diseases, severe cerebral/cardiovascular diseases, severe hypertension, or uncontrolled diabetes mellitus
  • Drug or alcohol abuse within past 6 months
  • Taking calcitonin, maintenance intravenous or oral glucocorticoids, cinacalcet, bisphosphonates, selective estrogen-receptor modulator (SERM), vitamin D compounds (other than study drug), or other drugs that may affect calcium or bone metabolism (other than estrogen or progestin, vitamin K2)
  • Will need to take chronic dose (≥ 2 consecutive weeks) of cytochrome P450 (CYP3A) inhibitors (e.g., clarithromycin, grapefruit products) or inducers (e.g., carbamazepine, rifampicin)
  • Taking aluminum containing products (2 weeks prior to consent)

Trial locations and contacts

12 sites in 1 country.

12 sites in 1 country

Japan12 sites
  • Study site

    Aichi, Prefecture

  • Study site

    Chiba, Prefecture

  • Study site

    Fukuoka, Prefecture

  • Study site

    Hokkaido, Prefecture

  • Study site

    Ibaraki, Prefecture

  • Study site

    Kanagawa, Prefecture

  • Study site

    Kumamoto, Prefecture

  • Study site

    Nagano, Prefecture

  • Study site

    Nagasaki, Prefecture

  • Study site

    Osaka, Prefecture

  • Study site

    Saitama, Prefecture

  • Study site

    Tokyo, Metropolis

Other trials in Japan

About this study

Official title: Late Phase 2 Study of Paricalcitol Injection: Dose-response Study of Paricalcitol Injection in Chronic Kidney Disease Subjects Receiving Hemodialysis With Secondary Hyperparathyroidism (Examination of Initial Dose and Incremental Dose)

The purpose of this study was to investigate the initial dose and dose adjustment range for paricalcitol injection in patients with chronic kidney disease on hemodialysis who have secondary hyperparathyroidism.

Read the detailed description

This multicenter, randomized, open-label trial consisted of 4 dose-adjustment regimens for paricalcitol injection (initial doses and dose adjustment ranges were 2 ± 1 µg, 2 ± 2 µg, 4 ± 1 µg, and 4 ± 2 µg) and 1 maxacalcitol regimen (initial dose and dose adjustment range was 5 µg ± 2.5 µg or 10 µg ± 2.5 µg) as a reference group. Subjects who met the inclusion criteria were randomized equally to 1 of the treatment groups with iPTH values at screening (< 500 pg/mL or ≥ 500 pg/mL) as a dynamic allocation factor. Study drugs were administered 3 times weekly (every other day) from the venous end of the hemodialysis circuit just before completion of the dialysis session. The initial doses were continued for 2 weeks, followed by dose adjustments (increase, maintenance, decrease, suspension, or resumption) by 1 µg or 2 µg units for the paricalcitol groups and by 2.5 µg units for the maxacalcitol group based on iPTH, calcium (adjusted), and phosphorus values every 2 weeks.

Subjects in the paricalcitol groups were to be suspended from treatment if their iPTH value decreased to < 60 pg/mL in accordance with the guidelines proposed by the Japanese Society of Dialysis Therapy for the treatment of secondary hyperparathyroidism in chronic dialysis patients (control goal value of 60-180 pg/mL for iPTH). The dose adjustment criteria based on iPTH values for the maxacalcitol group were set according to the prescribing information for maxacalcitol (suspended when iPTH decreased to ≤ 150 pg/mL).

Being tested
Maxacalcitol, Paricalcitol
Keywords
chronic kidney disease, secondary hyperparathyroidism, hemodialysis, paricalcitol, maxacalcitol
Medical subject headings
Hyperparathyroidism, Secondary, Renal Insufficiency, Chronic

What participants receive

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

  • MaxacalcitolDrug

    Study drug was administered 3 times per week (no more frequently than every other day) intravenously immediately before the completion of hemodialysis. The initial dosage was administered for 2 weeks, with subsequent dosage adjustment based on the subject's iPTH, calcium (adjusted), and phosphorus levels every 2 weeks. Total duration of treatment was 12 weeks.

  • ParicalcitolDrug

    Also called ABT-358, Zemplar

    Study drug was administered 3 times per week (no more frequently than every other day) intravenously immediately before the completion of hemodialysis. The initial dosage was administered for 2 weeks, with subsequent dosage adjustment based on the subject's iPTH, calcium (adjusted), and phosphorus levels every 2 weeks. Total duration of treatment was 12 weeks.

Study groups in NCT00667576
Study groupRoleWhat they receive
Paricalcitol 2 µg ± 1 µgExperimentalParicalcitol initial dosage 2 micrograms (µg) with incremental adjustment of 1 µg
Receives: Drug: Paricalcitol
Paricalcitol 2 µg ± 2 µgExperimentalParicalcitol initial dosage 2 µg with incremental adjustment of 2 µg
Receives: Drug: Paricalcitol
Paricalcitol 4 µg ± 1 µgExperimentalParicalcitol initial dosage 4 µg with incremental adjustment of 1 µg
Receives: Drug: Paricalcitol
Paricalcitol 4 µg ± 2 µgExperimentalParicalcitol initial dosage 4 µg with incremental adjustment of 2 µg
Receives: Drug: Paricalcitol
Maxacalcitol 5 or 10 µg ± 2.5 µgOtherMaxacalcitol initial dosage 5 or 10 µg with incremental adjustment of 2.5 µg
Receives: Drug: Maxacalcitol

What is being measured

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

  1. Percentage of Subjects With ≥ 50% Decrease From Baseline in Intact Parathyroid Hormone (iPTH) Serum Level

    Measured: Baseline to Week 13 (Final Visit)

Secondary outcomes (5)
  1. Mean Change From Baseline in Intact Parathyroid Hormone (iPTH) Level

    Measured: Baseline to Week 13 (Final Visit)

  2. Percentage of Subjects With Intact Parathyroid Hormone (iPTH) ≤ 180 Picograms/Milliliter (pg/mL)

    Measured: Baseline to Week 13 (Final Visit)

  3. Percentage of Subjects With 2 or More Decreases of ≥ 50% From Baseline in Intact Parathyroid Hormone (iPTH) Level

    Measured: Through Week 13

  4. Duration of 2 Consecutive Decreases of ≥ 50% From Baseline in Intact Parathyroid Hormone (iPTH) Values

    Measured: Through Week 13

  5. Duration of 2 Consecutive Intact Parathyroid Hormone (iPTH) Values ≤ 180 pg/mL

    Measured: Through Week 13

Timeline

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

  1. First posted28 Apr 2008 (estimated)
  2. Study startApr 2008
  3. Primary completionMar 2009
  4. Study completionMar 2009

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
153 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00667576
Sponsor's protocol ID
M10-309
Status last verified
Jan 2012
First submitted
24 Apr 2008
Last updated
20 Jan 2012
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Maxacalcitol and Paricalcitol in people with Chronic Kidney Disease on Hemodialysis and Secondary Hyperparathyroidism, run by Abbott at 12 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 6 inclusion and 7 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 20 Jan 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 12 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. 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?

Yes. Results are posted in the registry (first posted 2 Apr 2010). 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?

Percentage of Subjects With ≥ 50% Decrease From Baseline in Intact Parathyroid Hormone (iPTH) Serum Level (time frame: Baseline to Week 13 (Final Visit)). 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 20 Jan 2012.

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