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Evaluation of health-related quality of life impairment and associated factors in Japanese patients with chronic immune thrombocytopenia using patient-reported outcomes

Evaluation of health-related quality of life impairment and associated factors in Japanese patients with chronic immune thrombocytopenia using patient-reported outcomes - EQUITY-J (Evaluating the QUality of life of patients with chronic Immune ThrombocYtopenia in Japan)

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-jRCT1030240721
Enrollment
110
Registered
2025-03-06
Start date
2025-05-19
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 immune thrombocytopenia chronic immune thrombocytopenia

Interventions

None listed

Sponsors

Kudo Kohya
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients who provide written informed consent before study entry 2. Male and female adult patients 18 years of age or older at the time of enrollment 3. Patients with a documented physician diagnosis of ITP at least 1 year prior to the enrollment 4. Patients who have been prescribed with the same drug(s) for the treatment of ITP for at least 3 months prior to the enrollment; patients with a decrease in the daily dose of medication during the 3 months are considered stable and therefore are eligible 5. Number of platelets count within 3 months prior to the enrollment is available 6. Past medical history is available; at least for 3 months prior to the enrollment at V1

Exclusion criteria

Exclusion criteria: 1. Patients with a documented physician diagnosis of secondary ITP prior to the enrollment 2. Patients diagnosed with Evans syndrome or other forms of thrombocytopenia 3. Patients with history of splenectomy; patients with history of partial splenic embolization are also considered ineligible 4. Patients who have participated in any clinical trial for ITP within 3 months prior to the enrollment

Design outcomes

Primary

MeasureTime frame
The scores of all the eight domains of SF-36 of Japanese patients with chronic ITP under continuous treatment with any pharmacotherapies for chronic ITP, in comparison to those of healthy Japanese subjects.

Secondary

MeasureTime frame
1) The scores from patient-reported outcomes using the following questionnaires of patients with chronic ITP (at V1, the timing of enrollment): a) Immune Thrombocytopenic Purpura Patient Assessment Questionnaire (ITP-PAQ) b) The ITP Life Quality Index (ILQI) c) EuroQoL-5Dimention-5Level (EQ-5D-5L) d) Work Productivity and Activity Impairment (WPAI) e) Patient Health Questionnaire-9 (PHQ-9) f) PRO measurement information system Short Form v1.0 Fatigue-13a (PROMIS SF v1.0 Fatigue-13a) g) Functional Assessment of Cancer Therapy - General item GP5 (FACT-GP5) 2) Past medical history of patients with chronic ITP during the observation period (prior to the enrollment): a) HCRU-related parameters of patients with chronic ITP i. Number of outpatient visits (ITP-related and non-ITP related) ii. Number of operative procedures (ITP-related and non-ITP related) iii. Number of ER visit (ITP-related and non-ITP related) iv. Number of hospitalization (ITP-related and non-ITP related; number and the length of stay [days per one hospitalization]) v. Number of platelet transfusion b) Any pharmacotherapies (for ITP and not for ITP; daily dose and treatment duration of each medication) c) Number of serious bleeding symptoms (ITP-related) d) Blood test value (e.g., platelet count, hemoglobin, white blood count, red blood cell count) e) Duration of ITP since initial diagnosis

Contacts

Public ContactDirect Novartis

Novartis Pharma. K.K.

kohya.kudo@novartis.com+81-120-003-293

Outcome results

None listed

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