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CompletedNCT03801980Updated Mar 9, 2020

Phase 3 Study of SK-1403

A Phase 3 interventional study of SK-1403 and Placebo in Secondary Hyperparathyroidism, sponsored by Sanwa Kagaku Kenkyusho Co., Ltd.. Completed at 1 site in Japan. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2020-03-09.

Sponsored by Sanwa Kagaku Kenkyusho Co., Ltd. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
153
Allocation
Randomized
Ages
20 Years and older
Sex
All
01

Study summary

To evaluate the efficacy and safety of treatment with SK-1403 for 24 weeks in patients with secondary hyperparathyroidism on maintenance hemodialysis.

02

Conditions studied

  • Secondary Hyperparathyroidism
03

In context

Hyperparathyroidism, Secondary

188 studies on the registry are indexed under Hyperparathyroidism, Secondary; 15 are open to participants now.

This study's enrollment of 153 is above the median of 62 across 146 interventional studies indexed under Hyperparathyroidism, Secondary.

Browse Hyperparathyroidism, Secondary studies →

Lead sponsor

Sanwa Kagaku Kenkyusho Co., Ltd. is the lead sponsor of 19 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Serum PTH>240 pg/mL at the screening
  • Serum corrected Ca≧8.4 mg/dL at the screening
  • Stable chronic kidney disease patients who undergo hemodialysis or hemodialysis filtration

Exclusion criteria

Exclusion Criteria:

  • Primary hyperparathyroidism
  • Severe liver disease
  • Severe Cardiac disease
  • History or family history of long syndrome
  • Malignant tumor
  • Uncontrolled diabetes mellitus
  • Uncontrolled hypertension
  • History of severe drug allergy
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
153 participants (actual)

Study arms

  • Experimental
    SK-1403

    Patients receive SK-1403 three times a week administered by intravenous bolus injection at the end of each hemodialysis for the whole treatment periods (24 weeks), with individual dose adjustment.

    Drug: SK-1403

  • Placebo comparator
    Placebo

    Patients receive Placebo three times a week administered by intravenous bolus injection at the end of each hemodialysis for the whole treatment periods (24 weeks), with individual dose adjustment.

    Drug: Placebo

Interventions

  • Patients receive SK-1403 three times a week administered by intravenous bolus injection at the end of each hemodialysis for the whole treatment periods (24 weeks), with individual dose adjustment.

  • DrugPlacebo

    Patients receive Placebo three times a week administered by intravenous bolus injection at the end of each hemodialysis for the whole treatment periods (24 weeks), with individual dose adjustment.

06

What researchers measure

Primary outcomes

  1. Rate of participants who achieved a mean serum iPTH level of ≥ 60 pg/mL and ≤ 240 pg/mL from 22 to 24 week.

    Assessed by laboratory test value

    Time frame: 24 weeks

Secondary outcomes

  1. Rate of participants who achieved a serum iPTH level of ≥ 60 pg/mL and ≤ 240 pg/mL at each time point.

    Assessed by laboratory test value

    Time frame: 24 weeks

  2. Measured values and Changes from baseline in serum PTH

    Assessed by laboratory test value; unit of measure (pg/mL)

    Time frame: 24 weeks

  3. Measured values and Changes from baseline in Ca

    Assessed by laboratory test value; unit of measure (mg/dL)

    Time frame: 24 weeks

  4. Measured values and Changes from baseline in ionized Ca

    Assessed by laboratory test value; unit of measure (mEq/dL)

    Time frame: 24 weeks

  5. Measured values and Changes from baseline in P

    Assessed by laboratory test value; unit of measure (mg/dL)

    Time frame: 24 weeks

  6. Measured values and Changes from baseline in serum Ca x P product

    Assessed by laboratory test value

    Time frame: 24 weeks

07

Study locations

1 site
  • Investigational site (there may be other sites in this country)
    Tokyo, Japan
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 9, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03801980
Lead sponsor
Sanwa Kagaku Kenkyusho Co., Ltd.
Responsible party
Sponsor
First posted
Jan 14, 2019
Start date
Jan 21, 2019
Primary completion
Dec 17, 2019
Completion
Dec 21, 2019
Last update
Mar 9, 2020

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2020. You cannot join it, but the record below documents what was studied.

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