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A study of the effect of syoseiryuto on Japanese cedar pollinosis (randomized, placebo-controlled, double-blind study using the envionmental challenge chamber)

A study of the effect of syoseiryuto on Japanese cedar pollinosis (randomized, placebo-controlled, double-blind study using the envionmental challenge chamber) - A study of the effect of syoseiryuto on Japanese cedar pollinosis

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000033286
Enrollment
50
Registered
2018-07-05
Start date
2018-09-03
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

Japnese cedar pollinosis

Interventions

Intake of shoseiryuto for 2 weeks Intake of placebo for 2 weeks

Sponsors

Department of Otorhinolaryngology in Chiba University hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1)Patients who have medical history of cedar pollinosis for more than 2 years. 2)Patients who do not have nasal symtoms induced by any allergen and requier any drug treatment out of Japanese cedar pollen scattering season. 3)Positive specific IgE to cedar pollen allergen(>=class2) 4)Patients who develop more than moderate symptoms by a pollen exposure for 3 hours

Exclusion criteria

Exclusion criteria: 1) Allergy of intervention drug 2) Patients who develop mild symptoms by a pollen exposure for 3 hours. 3) Patients with nasal disease that affects the evaluation of the study 4) Severe respiratory disease, heart disease, liver disease, kidney disease, diabetes, autoimmune disease 5) Aldosteronism, myopathy, hypokalemia 6) Pregnant women and those at risk of pregnancy 7) Women who are planning pregnancy 8) Lactating woman 9) Patients treated with anti-allergic drugs within 2 week of screening 10) The patients who the doctor judged inappropriate for the study

Design outcomes

Primary

MeasureTime frame
Total nasal symptoms induced in the environmental challernge chamber after intake of the intervention drug for 2 weeks.

Secondary

MeasureTime frame
Association between "syo" and effect of the Shoseiryuto

Countries

Japan

Contacts

Public ContactSyuji Yonekura

Chiba University Graduate School Department of Otorhinolaryngology

syonekura@faculty.chiba-u.jp043-222-7171

Outcome results

None listed

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