Unique ID issued by UMIN | UMIN000027776 |
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Receipt number | R000030497 |
Scientific Title | Identification of phenotypes and endotypes by cluster analysis among patients with severe asthma in Japan |
Date of disclosure of the study information | 2017/07/03 |
Last modified on | 2022/06/01 16:09:29 |
Identification of phenotypes and endotypes by cluster analysis among patients with severe asthma in Japan
NHOM-Asthma
Identification of phenotypes and endotypes by cluster analysis among patients with severe asthma in Japan
NHOM-Asthma
Japan |
Asthma
Pneumology | Clinical immunology |
Others
NO
To identify phenotypes and endotypes among severe asthmatics in Japan. Also to conduct a field survey to reveal medical practice for asthma.
Efficacy
Exploratory
Not applicable
Phenotype classification in severe asthmatics
Actual clinical practice for asthma and its' control status
Distribution of cluster-specific endotypes' distribution among patients with severe asthma
Observational
16 | years-old | <= |
Not applicable |
Male and Female
1) Asthma patients visiting study institutions.
2) Patients who developed asthma more than one year ago.
3) Age: patients aged 16 years or older at time of acquisition of informed consent.
4) Patients who provided written consents for this study by themselves.
5) With regard to "severe asthma patients", patients in the treatment step 3 or 4 in "Asthma Prevention and Management Guidelines 2015".
(i.e., Treatment step 3: treatment with medium to high doses of inhaled corticosteroids plus any one or more from long-acting B2 stimulant, leukotriene receptor antagonist, theophylline and long-acting anticholinergic agent. Treatment step 4: treatment with high-dose inhaled corticosteroids plus two or more from long-acting B2 stimulant, leukotriene receptor antagonist, theophylline, long-acting muscarinic antagonist, anti-IgE antibodies and oral steroid.)
1) Patients for whom the principal investigator or sub-investigators decided not suitable for participation in this study.
2500
1st name | Ken |
Middle name | |
Last name | Ohta |
National Hospital Organization Tokyo National Hospital
The president of the hospital
204-8585
3-1-1 Takeoka, Kiyose-shi, Tokyo,204-8585, JAPAN
042-491-2111
kenohta@tokyo-hosp.jp
1st name | Maho |
Middle name | |
Last name | Suzukawa |
National Hospital Organization Tokyo National Hospital
Clinical Research Center, Center for Pulmonary Diseases
204-8585
3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, JAPAN
042-491-2111
suzukawam@tokyo-hosp.jp
National Hospital Organization Tokyo National Hospital
National Hospital Organization
Other
Japan
National Hospital Organization Tokyo National Hospital
3-1-1, Takeoka, Kiyose, Tokyo 240-8585, Japan
042-491-2111
tsukahara.rie.tz@mail.hosp.go.jp
NO
2017 | Year | 07 | Month | 03 | Day |
Unpublished
No longer recruiting
2017 | Year | 06 | Month | 05 | Day |
2017 | Year | 02 | Month | 09 | Day |
2017 | Year | 07 | Month | 04 | Day |
2019 | Year | 09 | Month | 30 | Day |
Serological and urinary tests at time of registration, and a survey of control status for one year after registration are performed only in severe asthmatics.
2017 | Year | 06 | Month | 16 | Day |
2022 | Year | 06 | Month | 01 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000030497
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