CClinicalTrials.gg
CompletedNCT00212355Updated Mar 5, 2025Results posted

Efficacy and Safety, Long-term Study of Zinc Acetate to Treat Wilson's Disease in Japan.

A Phase 3 interventional study of NPC-02 in Wilson's Disease, sponsored by Nobelpharma. Completed. Open to participants aged 1 Year and older. Per ClinicalTrials.gov, last updated 2025-03-05.

Sponsored by Nobelpharma · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
37
Allocation
Not applicable
Ages
1 Year and older
Sex
All
01

Study summary

The purpose of this long-term study is to determine whether Zinc Acetate is effective and safe in the treatment of Wilson's disease among Japanese.

Read the detailed description

Wilson disease is an autosomal recessive disorder with copper metabolism. In Japan, the standard treatment is the use of copper chelating agents, such as D-penicillamine and trientine. In this study, we investigate efficacy on zinc acetate in Japanese patients with Wilson disease.

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Conditions studied

  • Wilson's Disease
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In context

Hepatolenticular Degeneration

78 studies on the registry are indexed under Hepatolenticular Degeneration; 30 are open to participants now.

This study's enrollment of 37 is above the median of 30 across 42 interventional studies indexed under Hepatolenticular Degeneration.

Browse Hepatolenticular Degeneration studies →

Lead sponsor

Nobelpharma is the lead sponsor of 34 studies on the registry; none are open to participants now.

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

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Who can participate

Ages eligible
1 Year and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Wilson's disease(adult, infant, pregnant woman)

Exclusion criteria

Exclusion Criteria:

  • Acute hepatitis
  • Malignant tumor
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
37 participants (actual)

Study arms

  • Experimental
    NPC-02

    zinc acetate

    Drug: NPC-02

Interventions

  • DrugNPC-02

    zinc acetate

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What researchers measure

Primary outcomes

  1. Safety and Efficacy

    Number of patients who have at least one adverse events. ALT Change

    Time frame: During study period (up to 96W )

07

Results

Posted May 14, 2014

Participant flow

Participant flow — Overall Study
MilestoneNPC-02
Started37
Completed34
Not completed3
Withdrew: Adverse event1
Withdrew: Withdrawal by subject1
Withdrew: A change of address1

Outcome measures

PrimarySafety and Efficacy

Number of patients who have at least one adverse events. ALT Change

Time frame:
During study period (up to 96W )
Reported as:
Number · participants
Safety and Efficacy
participantsNPC-02
Safety and Efficacy37

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
NPC-02—4/37 (10.8%)37/37 (100%)
Most frequent serious events
Most frequent serious events
EventNPC-02
DepressionPsychiatric disorders1/37
Colitis ulcerativeImmune system disorders1/37
VaricellaInfections and infestations1/37
Sebaceous naevusCongenital, familial and genetic disorders1/37
Most frequent other events
Showing 10 of 61
Most frequent other events
EventNPC-02
Lipase increasedInvestigations28/37
NasopharyngitisInfections and infestations24/37
Blood iron decreasedInvestigations22/37
Blood amylase increasedInvestigations21/37
Blood urine presentInvestigations14/37
Protein urine presentInvestigations13/37
Upper respiratory tract inflammationRespiratory, thoracic and mediastinal disorders13/37
Blood triglycerides increasedInvestigations12/37
InfluenzaInfections and infestations9/37
Stomach discomfortGastrointestinal disorders7/37

Baseline characteristics

Analysis was performed subjects comprised 37 patients who were found to have Wilson disease through clnical and biochemical tests.

Age, Customized
Age, Customized(participants)NPC-02
≥1620
≥6 - <1615
≥1 - <62
Sex: Female, Male
Sex: Female, Male(Participants)NPC-02
Female24
Male13
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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Shimizu N, Fujiwara J, Ohnishi S, Sato M, Kodama H, Kohsaka T, Inui A, Fujisawa T, Tamai H, Ida S, Itoh S, Ito M, Horiike N, Harada M, Yoshino M, Aoki T. Effects of long-term zinc treatment in Japanese patients with Wilson disease: efficacy, stability, and copper metabolism. Transl Res. 2010 Dec;156(6):350-7. doi: 10.1016/j.trsl.2010.08.007. Epub 2010 Sep 23. PubMed 21078496 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 5, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00212355
Lead sponsor
Nobelpharma
Responsible party
Sponsor
First posted
Sep 21, 2005
Start date
Mar 2005
Primary completion
Apr 2008
Completion
Jan 2009
Results posted
May 14, 2014
Last update
Mar 5, 2025

Study contacts

Koudou Ishii, M.D.
study director · National MINAMIYOKOHAMA Hospital

Oversight

Data monitoring committee
No
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 Feb 2025. You cannot join it, but the record below documents what was studied.

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