| Unique ID issued by UMIN | UMIN000058428 | 
|---|---|
| Receipt number | R000066806 | 
| Scientific Title | Additive effect of P2X3 inhibitor, gefapixant, on azelastin for refractory atopic cough | 
| Date of disclosure of the study information | 2025/09/30 | 
| Last modified on | 2025/07/11 00:23:36 | 
Additive effect of P2X3 inhibitor, gefapixant, on azelastin for refractory atopic cough
Additive effect of P2X3 inhibition for refractory atopic cough
Additive effect of P2X3 inhibitor, gefapixant, on azelastin for refractory atopic cough
Additive effect of P2X3 inhibition for refractory atopic cough
| Japan | 
Atopic cough
| Pneumology | 
Others
NO
A retrospective clinical study will be conducted to evaluate the efficacy of gefapixant, a P2X3 inhibitor for the new treatment of chronic cough, in patients with refractory atopic cough in real clinical practice.
Efficacy
Confirmatory
cough sensitivity for capsaicin inhalation
visual analog score of cough
The Leicester Cough Questionnaire (LCQ) 
Observational
| 18 | years-old | < | 
| Not applicable | 
Male and Female
Refractory atopic cough
(1) Patients with unstable comorbidities
(2) Other patients deemed inappropriate as research subjects by the principal investigator
30
| 1st name | YOSHIHISA | 
| Middle name | |
| Last name | ISHIURA | 
Medical Center of Kansai Medical University
Respiratory and Allergy Medicine, Kansai Medial University
5708507
Fumizono-machi 10-15,Moriguchi
09089686294
ishiuray@takii.kmu.ac.jp
| 1st name | YOSHIHISA | 
| Middle name | |
| Last name | ISHIURA | 
Kansai Medial University
Respiratory and Allergy Medicine,
5708507
10-15 Fumizono-cho, Moriguchi, Osaka, 570-8507, Japan.
09089686294
ishiuray@takii.kmu.ac.jp
Respiratory and Allergy Medicine, Kansai Medial University
YOSHIHISA ISHIURA
Kansai Medical University
Government offices of other countries
Japan
Medical Center, Kansai Medical Center
10-15 Fumizono-cho, Moriguchi, Osaka, 570-8507, Japan.
09089686294
ishiuray@takii.kmu.ac.jp
NO
大阪府
関西医科大学 内科学第一講座 呼吸器アレルギー内科
| 2025 | Year | 09 | Month | 30 | Day | 
Unpublished
Open public recruiting
| 2022 | Year | 04 | Month | 01 | Day | 
| 2026 | Year | 07 | Month | 10 | Day | 
| 2022 | Year | 04 | Month | 01 | Day | 
| 2025 | Year | 08 | Month | 31 | Day | 
Retrospective observational study
| 2025 | Year | 07 | Month | 11 | Day | 
| 2025 | Year | 07 | Month | 11 | Day | 
Value 
 https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066806