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A Single-Arm Clinical Study on the Improvement of Exercise Tolerance in Patients with Pulmonary Arterial Hypertension by Chenodeoxycholic Acid

A Single-Arm Clinical Study on the Improvement of Exercise Tolerance in Patients with Pulmonary Arterial Hypertension by Chenodeoxycholic Acid - Single-arm PAH Exercise Tolerance with CDCA Research Assessment

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600116631
Enrollment
Unknown
Registered
2026-01-13
Start date
2026-01-13
Completion date
Unknown
Last updated
2026-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients with Pulmonary Arterial Hypertension

Interventions

Intervention Group:Chenodeoxycholic acid 250 mg twice daily for a total treatment duration of 16 weeks.

Sponsors

The First Affiliated Hospital of Xi’an Jiaotong University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 60 Years

Inclusion criteria

Inclusion criteria: Outpatients or inpatients from The First Affiliated Hospital of Xi’an Jiaotong University, meeting the following criteria: 1 Voluntary participation, with the patient or their authorized representative consenting to join the clinical trial and signing an informed consent form; 2 Age between 18 and 60 years, regardless of gender; 3 Screening criteria: echocardiography-estimated systolic pulmonary artery pressure (sPAP) > 50 mmHg; or prior right heart catheterization-confirmed mean pulmonary artery pressure (mPAP) > 25 mmHg, pulmonary capillary wedge pressure (PCWP) = 15 mmHg, and pulmonary vascular resistance (PVR) > 2 Wood units and < 10 Wood units. 4 Prior medication status: diagnosed with Group 1 pulmonary arterial hypertension (PAH) and treated with oral targeted therapies (including but not limited to macitentan, ambrisentan, or bosentan). Patients are considered to be in a stable phase if there is no significant change in echocardiography-measured systolic pulmonary artery pressure over a one-month period.

Exclusion criteria

Exclusion criteria: 1 Inability to sign the informed consent form; 2 Allergy to the drug(s); 3 Women who are currently pregnant or breastfeeding; 4 Acute infection, malignant diseases, bleeding disorders; 5 Chronic inflammation; infection with human immunodeficiency virus (HIV), hepatitis B or C; chronic diarrhea; 6 Complete biliary obstruction and severe hepatic impairment (Child-Pugh class C), with serum alanine aminotransferase (ALT) or aspartate aminotransferase (AST) > 3 times the upper limit of normal; 7 Severe renal impairment: serum creatinine > 2 times the upper limit of normal, or estimated glomerular filtration rate (eGFR) < 30 ml/min/1.73m^ ²; 8 Currently participating in another clinical trial or study and taking investigational drugs, particularly immunosuppressants and other cholesterol-lowering therapies; 9 CT scan or pulmonary function tests indicating left heart disease or significant pulmonary disease; severe uncontrolled asthma, chronic obstructive pulmonary disease, eczema, atopic allergies, etc.; 10 Severe anemia that has not been corrected; 11 Suffering from non-cardiac diseases with an expected lifespan of < 2 years.

Design outcomes

Primary

MeasureTime frame
Improvement in 6-Minute Walk Distance;

Secondary

MeasureTime frame
Improvement in cardiac functional class;Improvement in plasma NT-proBNP levels;Improvement in systolic pulmonary artery pressure measured by echocardiography;

Countries

China

Contacts

Public ContactBeidi Lan

The First Affiliated Hospital of Xi'an Jiaotong University

bettyblue0216@hotmail.com+86 181 3396 4560

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026