Analysis of Response Shifts in Patient-Reported Indicators for Determining Drug Treatment Effectiveness in COPD Patients

Analysis of Response Shifts in Patient-Reported Indicators Using the SGRQ-C to Determine the Effectiveness of Drug Therapy in COPD Patients - Response Shift Analysis of Quality of Life Indicators in Determining Treatment Effectiveness in COPD Patients

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000045239

Enrollment

Registered

2021-08-24

Start date

2021-08-24

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

Chronic Obstructive Pulmonary Disease

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Age 20 years and older Patients who are symptomatic and about to start initial or additional treatment with long-acting bronchodilators for COPD Smoking history of more than 20 pack-years Meet the diagnostic criteria for COPD (Japanese Respiratory Society Guidelines, 5th Edition) No change in treatment in the last 2 months No exacerbation of COPD in the last 6 weeks

Exclusion criteria

Exclusion criteria: Poorly controlled comorbidities Dementia Writing difficulties

Design outcomes

Primary

Measure	Time frame
SGRQ-C(COPD-specific St. George's Respiratory Questionnaire)	—

Secondary

Measure	Time frame
CAT (COPD Assessment Test)	—

Countries

Japan

Contacts

Public ContactShonosuke Tajima

Kawasaki medical school Respiratory medicine

shonosuke@med.kawasaki-m.ac.jp086-462-1111

Outcome results