NCT06122922

Brief Summary

The objective of this project is to determine how pulmonary vascular remodeling in Pulmonary Arterial Hypertension (PAH) at cellular and pathological level is associated with gas exchange physiology changes and hemodynamics (monitored with 129Xe MRI/MRS) and how these signals change with disease progression or treatment.

Trial Health

15
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Mar 2024

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 3, 2023

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 8, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

March 15, 2024

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

January 23, 2024

Status Verified

January 1, 2024

Enrollment Period

1.8 years

First QC Date

November 3, 2023

Last Update Submit

January 19, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • Change in pulmonary vascular function

    Measured by RBC/Membrane metrics on Xe MRI

    Baseline, 3 months, 6 months, 1 year

  • Change in pulmonary vascular function

    Measured by RBC shift metrics on Xe MRI

    Baseline, 3 months, 6 months, 1 year

  • Change in pulmonary vascular functoin

    Measured by RBC amplitude oscillation metrics on Xe MRI

    Baseline, 3 months, 6 months, 1 year

Secondary Outcomes (4)

  • Six Minute Walk Test Distance (6MWD)

    Baseline, 3 months, 6 months, 1 year

  • NTproBNP

    Baseline, 3 months, 6 months, 1 year

  • World Health Organization (WHO) Functional Class (FC)

    Baseline, 3 months, 6 months, 1 year

  • Hopsitalizations

    Baseline, 3 months, 6 months, 1 year

Study Arms (1)

Patients with Stable Pulmonary Arterial Hypertension

OTHER

Stable on current treatment regimen and not planning to undergo initiation of new therapy for at least 3 months Intervention: Drug: 129Xe Hyperpolarized

Drug: Hyperpolarized Xe129

Interventions

Hyperpolarized Xenon Gas

Patients with Stable Pulmonary Arterial Hypertension

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Stable on current treatment regimen and not planning to undergo initiation of new therapy for at least 3 months
  • Outpatients of any gender, Age 18-75
  • WHO functional class (FC) 1-3 symptoms with a diagnosis of group 1 PH (mean pulmonary artery pressures (mPAP) \> 20 mmHg, pulmonary capillary wedge pressure (PCWP) ≤ 15mmHg and pulmonary vascular resistance (PVR) ≥3 WU)
  • Willing and able to give informed consent and adhere to visit/protocol schedules (consent must be given before any study procedures are performed).
  • Women of childbearing potential must have a negative urine pregnancy test before MRI

You may not qualify if:

  • Sarcoidosis
  • Active cancer
  • Sickle cell anemia
  • Liver disease (Childs-Pugh class C)
  • Any conditions that prevent the performance of 129Xe MRI scans.
  • Prisoners and pregnant women will not be approached for the study
  • Conditions that will prohibit MRI scanning (metal in eye, claustrophobia, inability to lie supine)
  • Medical or psychological conditions which, in the opinion of the investigator, might create undue risk to the subject or interfere with the subject's ability to comply with the protocol requirements

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Familial Primary Pulmonary Hypertension

Condition Hierarchy (Ancestors)

Hypertension, PulmonaryLung DiseasesRespiratory Tract Diseases

Study Officials

  • Sudarshan Rajagopal, MD

    Duke University

    PRINCIPAL INVESTIGATOR
0

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
IND Holder

Study Record Dates

First Submitted

November 3, 2023

First Posted

November 8, 2023

Study Start

March 15, 2024

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

January 23, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share