U.S., May 24 -- ClinicalTrials.gov registry received information related to the study (NCT06987097) titled 'Ambrisentan for Early Low-Risk Pulmonary Arterial Hypertension' on April 24.

Brief Summary: This is an investigator-initiated, multicenter, randomized, double-blind, placebo-controlled clinical trial.

Study Start Date: May 15

Study Type: INTERVENTIONAL

Condition: Pulmonary Arterial Hypertension (PAH)

Intervention: DRUG: Ambrisentan

After two weeks of initial treatment, the study drugs' dose will be increased to two tablets per day (10 mg/day). If the patient cannot tolerate the increased dose (e.g., experiencing headache, dizziness, palpitations, hypotension, or other drug-related symptoms or signs), the dose will be reduced t...