PROBLEM TO BE SOLVED: To treat, prevent, or reduce the progression rate of pulmonary hypertension (PH). SOLUTION: (1) A method for treating, inhibiting, or slowing the progression rate of pulmonary hypertension (PH) using a pharmaceutical composition containing a TGF-β ligand capture agent, (2) pulmonary blood vessel Including but not limited to remodeling, pulmonary fibrosis, right ventricular hypertrophy, disorders associated with excessive TGF-β signaling, disorders associated with excessive GDF15 signaling, and disorders associated with excessive PAI-1 signaling A method of treating, preventing, or slowing the rate of progression of various medical conditions including, but not limited to, (3) a method of lowering right ventricular systolic pressure. [Selection diagram] None【課題】肺高血圧症(PH)を治療、阻止、またはその進行速度を低下させる方法。【解決手段】TGF-βリガンド捕捉体を含む薬学的組成物を用いて、(1)肺高血圧症(PH)を治療する、阻止する、またはその進行速度を低下させる方法、(2)肺血管再構築、肺線維症、右心室肥大、過度のTGF-βシグナル伝達に関連した疾患、過度のGDF15シグナル伝達に関連した疾患、および過度のPAI-1シグナル伝達に関連した疾患を含むがそれらに限定されない多様な病状を治療する、阻止する、またはその進行速度を低下させる方法、(3)右心室収縮期圧を低下させる方法の提供。【選択図】なし