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This clinical trial will evaluate whether combination therapy with Dapagliflozin + Macitentan improves outcomes compared to Dapagliflozin + placebo in patients with combined pre- and post-capillary pulmonary hypertension (CpcPH).
The study will measure changes in pulmonary vascular resistance, NT-proBNP, 6-minute walk distance, and quality of life (KCCQ scores) over 24 weeks.
Participants will be randomly assigned to one of two groups, take study medication for 24 weeks, and undergo regular clinical, laboratory, and safety assessments.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Combination therapy group | Experimental | Maciten Tab. 10mg |
|
| Monotherapy group | Placebo Comparator | Dapozin Tab. 10mg or 5mg |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Combination therapy | Drug | Macitentan 10mg, Dapagliflozin 10mg or 5mg po tablet q.d. in 24 weeks |
|
| Measure | Description | Time Frame |
|---|---|---|
| Hierarchical outcome component(Change in PVR, Change in NT-proBNP, Change in 6MWD, Change in KCCQ-CSS) | The hierarchical composite variable includes the rate of change in Pulmonary Vascular Resistance (PVR), NT-proBNP, change in 6-minute walk distance, and change in KCCQ-CSS score. All possible pairwise comparisons between combination therapy group and monotherapy group subjects (e.g., 2 subjects in combination group and 3 in monotherapy group yield 6 pairs) are classified as Win, Loss, or Tie based on the following definitions. If the subject in the pair meeting the criteria belongs to the combination group, it is evaluated as a Win; if in the monotherapy group, a Loss. | Baseline, 24 week |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Pulmonary Vascular Resistance (PVR) from Baseline to Week 24 | PVR (Wood Units, WU) is measured by Right Heart Catheterization (RHC). | Baseline, 24 week |
| Change in Mean Pulmonary Arterial Pressure (mPAP) from Baseline to Week 24 |
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Inclusion Criteria:
<Screening Visit (Visit 1)>
A male or female adults aged 19 years or older in South Korea
LVEF greater than 40% on echocardiogram performed within 12 weeks prior to screening
Presence of heart failure with mildly reduced ejection fraction (HFmrEF) or preserved ejection fraction (HFpEF) accompanied by combined pre- and post-capillary pulmonary hypertension (CpcPH)
Meeting all of the following criteria on RHC performed within 48 weeks prior to screening:
World Health Organization Functional Class (WHO-FC) II or III at the time of screening
If taking any of the following medications at the time of screening, the participant must have been on a stable dose for at least 3 months:
<Baseline Visit (Visit 2)>
1. World Health Organization Functional Class (WHO-FC) II or III at the time of baseline visit
Exclusion Criteria:
<Screening Visit (Visit 1)>
Known hypersensitivity to the active ingredients (Macitentan, Dapagliflozin) or any excipients of the investigational medicinal product
Pregnant or breastfeeding women, or those who do not agree to use at least two appropriate contraceptive methods* (self or partner) during the clinical trial period and for 30 days after the last administration of the investigational medicinal product (for male participants, those who do not agree to refrain from sperm donation)
*: a. Surgical sterilization (e.g., vasectomy) or intrauterine device (IUD; copper IUD or hormone-releasing intrauterine system), b. Non-oral hormonal contraceptive or spermicide in combination with a barrier method, c. Cervical cap or diaphragm used in combination with a male condom.
Participants with type 1 diabetes mellitus or secondary diabetes mellitus
Participants with metabolic acidosis, such as diabetic ketoacidosis
Participants diagnosed with pulmonary hypertension other than WHO Group 2 pulmonary hypertension (i.e., WHO Group 1, 3, 4, or 5)
Participants who meet the following criteria on RHC performed within 12 weeks prior to screening:
a. PAWP ≤ 15 mmHg
History of taking any of the following medications within 4 weeks prior to screening:
History of any of the following medical conditions, surgeries, or procedures:
eGFR ≤ 30 mL/min/1.73 m² or AST or ALT ≥ 2.5 × ULN
Urinary tract infection, genital infection (including fungal infections), or voiding disorder within 24 weeks prior to screening
Hemoglobin < 9 g/dL at the time of screening
Participants with genetic disorders such as galactose intolerance, Lapp lactase deficiency, or glucose-galactose malabsorption
Known hypersensitivity to soybean oil or history of soybean oil allergy
Known hypersensitivity to soy or peanuts
Participation in another clinical trial involving administration/application of an investigational medicinal product or medical device within 3 months prior to screening
<Baseline Visit (Visit 2)>
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Wook-Jin Chung, MD, PhD | Contact | 82-32-460-3663 | heart@gilhospital.com |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Pusan National University Hospital | Recruiting | Busan | 49241 | South Korea | ||
| Chungbuk National University Hospital |
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| Monotherapy | Drug | Macitentan placebo, Dapagliflozin 10mg or 5mg po tablet q.d. in 24 weeks |
|
|
mPAP (mmHg) is measured by RHC.
| Baseline, 24 week |
| Change in Pulmonary Arterial Wedge Pressure (PAWP) from Baseline to Week 24 | PAWP (mmHg) is measured by RHC. | Baseline, 24 week |
| Change in 6-Minute Walk Distance from Baseline to Week 24 | Distance (meters) measured by 6-minute walk test. | Baseline, 24 week |
| Change in Oxygen Saturation (SpO2) Difference Before and After 6-Minute Walk Test from Baseline to Week 24 | Oxygen saturation (%) difference before and after the 6-minute walk test. | Baseline, 24 week |
| Change in N-terminal pro-brain natriuretic peptide (NT-proBNP) from Baseline to Week 24 | NT-proBNP (pg/mL) measured by clinical laboratory tests. | Baseline, 24 week |
| Change in Tricuspid Regurgitation Velocity (TRV) from Baseline to Week 24 | TRV (m/s) measured by echocardiography. | Baseline, 24 week |
| Change in Tricuspid Annular Plane Systolic Excursion (TAPSE) from Baseline to Week 24 | TAPSE (mm) measured by echocardiography. | Baseline, 24 week |
| Use of Intravenous Diuretics During Treatment Period (Visit 2 to Visit 4) | The number of intravenous diuretic administrations collected via concomitant medication records. | Baseline, 24 week |
| Rate of Hospitalization Due to Heart Failure During Treatment Period (Visit 2 to Visit 4) | Number of hospitalizations for heart failure compared between groups during treatment period. | Baseline, 24 week |
| Number of Days Hospitalized for Heart Failure During Treatment Period (Visit 2 to Visit 4) | Total days of hospitalization for heart failure compared between groups during treatment. | Baseline, 24 week |
| Number of Deaths (Cardiovascular and All-Cause) During Treatment Period (Visit 2 to Visit 4) | Cardiovascular and all-cause mortality events compared between groups. | Baseline, 24 week |
| Change in Mean Right Atrial Pressure (mRAP) from Baseline to Week 24 | mRAP (mmHg) measured by RHC. | Baseline, 24 week |
| Change in Cardiac Index (CI) from Baseline to Week 24 | Cardiac Index (L/min/m²) measured by RHC. | Baseline, 24 week |
| Change in Mixed Venous Oxygen Saturation (SvO2) from Baseline to Week 24 | SvO2 (%) measured by RHC. | Baseline, 24 week |
| Change in Left Atrial Volume Index (LAVI) from Baseline to Week 24 | LAVI (mL/m²) measured by echocardiography and body measurements. | Baseline, 24 week |
| Change in Tricuspid Valve Systolic Tissue Velocity (TV S' velocity) from Baseline to Week 24 | TV S' velocity (cm/s) measured by echocardiography. | Baseline, 24 week |
| Change in Right Atrial Area (RA area) from Baseline to Week 24 | RA area (cm²) measured by echocardiography. | Baseline, 24 week |
| Change in Presence of Pericardial Effusion from Baseline to Week 24 | Presence or absence of pericardial effusion evaluated by echocardiography. | Baseline, 24 week |
| Change in Kansas City Cardiomyopathy Questionnaire Overall Summary Score (KCCQ-OSS) from Baseline to Week 24 | KCCQ-OSS measured by questionnaire. | Baseline, 24 week |
| Not yet recruiting |
| Chungju |
| 28644 |
| South Korea |
| Keimyung University Dongsan Hospital | Recruiting | Daegu | 42601 | South Korea |
| Chungnam National University Hospital | Recruiting | Daejeon | 35015 | South Korea |
| Chonnam National University Hospital | Recruiting | Gwangju | 61469 | South Korea |
| Incheon Sejong Hospital | Not yet recruiting | Incheon | 21080 | South Korea |
| Gachon University Gil Hospital | Recruiting | Incheon | 405-760 | South Korea |
|
| Seoul National University Hospital | Recruiting | Seoul | 03080 | South Korea |
| Yonsei University Health System, Severance Hospital | Not yet recruiting | Seoul | 03722 | South Korea |
| Asan Medical Center | Recruiting | Seoul | 05505 | South Korea |
| Samsung Medical Center | Not yet recruiting | Seoul | 06351 | South Korea |
| The Catholic University of Korea, Seoul St.Mary | Recruiting | Seoul | 06591 | South Korea |
| Koera University Guro Hospital | Not yet recruiting | Seoul | 08308 | South Korea |
| Yonsei University, Wonju Severance Christian Hospital | Recruiting | Wŏnju | 26426 | South Korea |
| Pusan National University Yangsan Hospital | Not yet recruiting | Yangsan | 50612 | South Korea |
| ID | Term |
|---|---|
| D003131 | Combined Modality Therapy |
| ID | Term |
|---|---|
| D013812 | Therapeutics |
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