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PAH Exercise Study

Remotely-Monitored Exercise to Enhance Functional Outcomes in Patients With Pulmonary Arterial Hypertension (PAH) Initiating Sotatercept Therapy: A Single-site Feasibility Study

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06941441
Enrollment
10
Registered
2025-04-23
Start date
2025-04-15
Completion date
2026-09-30
Last updated
2025-04-23

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

Conditions

Exercise Therapy, Pulmonary Arterial Hypertension (PAH)

Keywords

PAH, pulmonary arterial hypertension, sotatercept, exercise

Brief summary

Ten patients with PAH who are stable and eligible to initiate sotatercept therapy will participate in a 26 week study that consists of a 24-week intervention period where patients will receive complimentary sotatercept as prescribed, plus a tailored, progressive home exercise program with wrist-worn fitness tracker and oxygen saturation monitoring.

Interventions

OTHERHome exercise program

A tailored, progressive home exercise program with wrist-worn fitness tracker and oxygen saturation monitoring

Sponsors

University of Washington
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years * Documented diagnostic right heart catheterization (RHC) at any time prior to screening confirming the diagnosis of WHO PAH Group 1 in any of the following subtypes: Idiopathic PAH, Heritable PAH, Drug/toxin-induced PAH, PAH associated with CTD, PAH associated with simple, congenital systemic-to-pulmonary shunts at least 1 year following repair * Symptomatic PH classified as WHO FC II or III * Baseline RHC performed during the Screening Period documenting a minimum PVR of ≥ 5 WU and a pulmonary capillary wedge (PCWP) or left ventricular end-diastolic pressure of ≤ 15 mmHg * Receiving stable background therapy for PAH for \>90 days and will continue receiving throughout trial. Background treatments may consist of monotherapy, double therapy, or triple therapy with currently available medications for PAH. * Initiation of Sotatercept is clinically indicated * Willing and able to participate in a remotely-monitored home exercise program for 24 weeks * Ability to adhere to study visit schedule and understand and comply with all protocol requirements * Ability to understand and provide written informed consent

Exclusion criteria

* Diagnosis of PH WHO Groups 2, 3, 4, or 5 * Diagnosis of the following PAH Group 1 subtypes: human immunodeficiency virus (HIV)-associated PAH, PAH associated with portal hypertension, schistosomiasis-associated PAH and pulmonary veno-occlusive disease * Hemoglobin at screening above gender-specific ULN * Baseline platelet count \< 50,000/mm3 (\< 50.0 × 109/L) at screening * Uncontrolled systemic hypertension as evidenced by sitting systolic BP \> 160 mmHg or sitting diastolic BP \> 100 mmHg during screening visit after a period of rest; Baseline systolic BP \< 90 mmHg at screening * Pregnant or breastfeeding females * Clinical laboratory liver and kidney function tests outside of normal range * Currently enrolled in or have completed any other investigational product study within 30 days for small-molecule drugs or within 5 half-lives for biologics prior to the date of signed informed consent * Prior exposure to sotatercept (ACE-011) or luspatercept (ACE-536) or known allergic reaction to either one * History of full pneumonectomy * Initiation of a structured exercise program within 90 days prior or planned initiation during the study * Known history of portal hypertension or chronic liver disease, including hepatitis B and/or hepatitis C (with evidence of recent infection and/or active virus replication), defined as mild to severe hepatic impairment (Child-Pugh Class A-C). * Cardiac related history: History of restrictive, constrictive, or congestive cardiomyopathy; History of atrial septostomy within 180 days prior to the screening visit; ECG with Fridericia's corrected QT interval (QTcF) \> 500 ms during the Screening Period; Personal or family history of long QT syndrome (LQTS) or sudden cardiac death; Left ventricular ejection fraction (LVEF) \< 45% on historical ECHO within 12 months prior to the screening visit; Any symptomatic coronary disease events (prior myocardial infarction, percutaneous coronary intervention, coronary artery bypass graft surgery, or cardiac anginal chest pain) within 6 months prior to the screening visit. Note: Anginal pain can be ignored as an exclusion criterion if coronary angiography shows no obstructions * Cerebrovascular accident within 3 months prior to the screening visit * Acutely decompensated heart failure within 14 days prior to the screening visit, as per investigator assessment * Significant (≥ 2+ regurgitation) mitral regurgitation or aortic regurgitation valvular disease * Received intravenous inotropes (e.g., dobutamine, dopamine, norepinephrine, vasopressin) within 30 days prior to the screening visit

Design outcomes

Primary

MeasureTime frameDescription
Recruitment rate18 months
Adherence and Completion Rate18 months
Study-related adverse events (SAE) rate18 months
Measurement fidelity for the innovative 'remote Six Minute Walk Test (6MWT)'18 monthsPatient self-administered via the digital fitness platform with remote monitoring at two interim assessment timepoints

Secondary

MeasureTime frameDescription
Change from baseline in Six Minute Walk Test (6MWT) distance24 weeksVia Six Minute Walk Test administered during baseline and final in-person study visits
Health-related quality of life (QoL)24 weeksAs measured by the PAH-specific survey PAH-SYMPACT®
Change from baseline in Calculated Cardiac Effort (CEC) during 6MWT24 weeksCardiac Effort to be calculated from Six Minute Walk Test administered during baseline and final in-person study visits
Change from baseline in nT-proBNP24 weeksVia bloodwork during baseline and final in-person study visits
Average weekly accelerometry minutes of moderate-to-vigorous physical activity (MVPA)24 weeks

Countries

United States

Contacts

Primary ContactClaire E Child, DPT, MPH
cechild@uw.edu206-616-8601

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026