Clinical trial Recruiting at 1 site Early Phase 1 Interventional Ages 18 to 75

Using PET imaging to detect early pulmonary arterial hypertension

Official title: Utilizing 18F-fluoroglutamine PET Imaging in Patients With Pulmonary Arterial Hypertension

Run by University of Pittsburgh · NCT05452889 · Data updated 2026-11-12

This study is testing a new imaging method to see if it can help detect early signs of pulmonary arterial hypertension in patients before it gets worse.

Quick facts

PhaseEarly Phase 1
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment71 (estimated)
SponsorUniversity of Pittsburgh
Academic / other
Drugs / interventionsradiation
Locations1 site (Pittsburgh, Pennsylvania)
StatusRecruiting
StartedJuly 11, 2022
Main results expectedJanuary 2027
Study endsFebruary 2027
Registry record updatedJanuary 21, 2026
Trial IDNCT05452889 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults aged 18-75 with a confirmed diagnosis of scleroderma-related PAH or idiopathic PAH.

Probably not a fit

Patients with a history of smoking, certain medical conditions affecting the heart or lungs, or those who are pregnant or breastfeeding may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to utilize 18F-fluoroglutamine (18F-FGln) PET imaging to assess glutamine uptake in patients diagnosed with pulmonary arterial hypertension (PAH) compared to healthy controls. The objective is to develop a non-invasive imaging biomarker that can detect early stages of PAH, which is often misdiagnosed and leads to significant disease progression. The research team, consisting of experts in the field, will conduct in-human imaging to quantify metabolic changes associated with PAH. This pilot experiment seeks to establish the potential of 18F-FGln as a diagnostic tool for early intervention.

Why it matters

Potential benefit: If successful, this study could lead to earlier and more accurate diagnoses of pulmonary arterial hypertension, improving patient outcomes.

How similar studies have gone: While some studies have explored imaging techniques for PAH, the specific use of 18F-FGln PET imaging for this purpose is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Cases:

1. Age between 18-75 years old
2. Confirmed diagnosis of SSc-PAH / SSc-eiPAH/IPAH/ by right heart catheterization. And Scleroderma with no PAH confirmand by echo.

Controls:

1. Age between 18-75 years old
2. Individuals who are at low risk for current or future cardiovascular or pulmonary symptoms or diseases

Exclusion Criteria:

Cases:

1. Smoking
2. Pregnant/ breast feeding women
3. Children under 18
4. Inability to read and understand the informed consent
5. History of CT contrast allergy
6. Inability to lie down for long period of time
7. Having claustrophobic
8. History of radiation exposure at workplace
9. Consuming more than 2-3 alcoholic drinks a week
10. Working previously in any of the following "cool miner, painter, iron miner, Mill worker, asbestos, insulation/heat resistance materials, sand"
11. Any medical conditions involving the heart or lungs that would make participation in the study unsafe in the opinion of the PI.

Controls:

1. Smoking
2. Pregnant/ breast feeding women
3. Children under 18
4. Inability to read and understand the informed consent
5. History of CT contrast allergy.
6. Inability to lie down for long period of time
7. Having claustrophobic
8. History of radiation exposure at workplace
9. Consuming more than 2-3 alcoholic drinks a week
10. Working previously in any of the following "coal miner, painter, iron miner, Mill worker, asbestos, insulation/heat resistance materials, sand"
11. Any medical conditions involving the heart or lungs or that would make participation in the study unsafe in the opinion of the PI.
12. Family history of Pulmonary Hypertension or Scleroderma

Where it's running

  • Montefiore Hospital Clinical and Translational Research Center
    Pittsburgh, Pennsylvania, United States
    Recruiting

Study contacts

  • Principal investigator: Stephen Chan — University of Pittsburgh
  • Study coordinator: Yassmin Al Aaraj
  • Email: yaa29@pitt.edu
  • Phone: 14126479227

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.