Phase III Clinical Study on Taste Disorder by Z-103 -Double Blind Comparison Study on Patients with Zinc -deficient and Idiopathic Taste Disorders -

Status

Unknown

Phases

Phase 3

Study type

Interventional

Source

JPRN

Registry ID

JPRN-jRCT2080220228

Enrollment

150

Registered

2006-04-13

Start date

2006-04-13

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Zinc-deficient and idiopathic taste disorders

Interventions

investigational material(s) Generic name etc : Z-103 INN of investigational material : Therapeutic category code : 139 Other agents affecting sensory organs Dosage and Administration for Investigatio

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Inclusion criteria Patients who do not fall in any of the "Exclusion Criteria concerning Diagnosis" and are diagnosed to be suffering from zinc-deficient and idiopathic taste disorders. Exclusion Criteria concerning Diagnosis 1) Drug induced taste disorder 2) Systemic disorder induced taste disorder 3) Psychogenic taste disorder 4) Taste disorder due to disorders of the oral cavity and salivary gland 5) Taste disorder due to disorders of the peripheral nerves 6) Taste disorder due to central nerve disorders 7) Taste disorder due to genetic disorders 8) Disorders of the olfactory sense and flavor sensing 9) Other taste disorder for which medically clear causes (excluding zinc deficiency) are recognized others

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
Final Judgment of the Effects by Filter-paper Disk Method Examination	—

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026