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Recruiting Phase 2 NCT06616974

A Study of TX000045 in Patients With Pulmonary Hypertension Secondary to Heart Failure With Preserved Ejection Fraction (the APEX Study)

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Trial Parameters

Condition Pulmonary Hypertension
Sponsor Tectonic Therapeutic
Study Type INTERVENTIONAL
Phase Phase 2
Enrollment 180
Sex ALL
Min Age 18 Years
Max Age 83 Years
Start Date 2024-09-04
Completion 2026-10-09
Interventions
TX000045- Dose ATX000045- Dose BPlacebo

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Brief Summary

TX000045-003 is a double-blind, randomized, parallel group, placebo-controlled, proof- of-concept (POC) study, evaluating 2 dose regimens of TX000045 over the course of a 24-week treatment period (the APEX study).

Eligibility Criteria

Inclusion Criteria: 1. Is a male or female of non-childbearing potential between the ages of 18 and 83 years. 2. Has a diagnosis of PH-HFpEF based on baseline echocardiogram and right heart catheterization (RHC). 3. Has NYHA functional class II- III heart failure. 4. Has 6MWT distance from 100 to 450m. 5. Chronic medication for heart failure or cardiovascular disease is at a stable dose prior to screening. 6. Is able to understand and provide documented consent for participation. Exclusion Criteria: 1. Diagnosis of PH in World Health Organization (WHO) Group 1, WHO Group 3, WHO Group 4, or WHO Group 5. 2. Current or recent hospitalization prior to screening. 3. Recently received vasoactive drugs, pulmonary arterial hypertension-specific therapies, or a relaxin receptor agonist. 4. Initiated a new exercise program for cardiopulmonary rehabilitation or plans to initiate such a program during the study. 5. Has a body mass index \<18 kg/meter square or \>45 kg/ meter square. 6. Was previou

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