Clinical trial Recruiting at 1 site Interventional

Photon-counting CT for lung imaging in people with COPD

Official title: Photon-counting CT Post-processing Protocols for Robust Quantifications in Chest CT Scans

Run by Duke University · NCT07031336 · Data updated 2026-11-12

This project will test whether photon-counting CT scans can produce more accurate and reproducible measurements of emphysema and airway changes in people with COPD.

Quick facts

Study typeInterventional
SexAll
Enrollment40 (estimated)
SponsorDuke University
Academic / other
Drugs / interventionsradiation
Locations1 site (Durham, North Carolina)
StatusRecruiting
StartedNovember 14, 2025
Main results expectedDecember 12, 2026
Study endsDecember 12, 2027
Registry record updatedAugust 26, 2026
Trial IDNCT07031336 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are participants in the Duke COPDGene Phase 4 cohort who can consent to an extra CT scan and are able to travel to Duke University Hospital in Durham, NC.

Probably not a fit

People who are not enrolled in the COPDGene Phase 4 cohort, who cannot undergo CT imaging, or who decline consent are unlikely to benefit from this project.

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

What this trial studies

The project will recruit participants from the Duke COPDGene Phase 4 cohort who consent to undergo an additional photon-counting CT (PCCT) scan at Duke University Hospital. Scans will be acquired with a PCCT-specific protocol and also compared to conventional energy-integrating CT where available. Investigators will reconstruct the PCCT images using multiple post-acquisition parameter settings and apply recently developed harmonization techniques. Quantitative metrics such as Perc15, LAA-950, HU accuracy, Pi10, and airway wall percentage will be compared across reconstructions to identify reproducible acquisition and processing protocols.

Why it matters

Potential benefit: If successful, this could enable more precise and repeatable lung measurements that improve monitoring and characterization of emphysema and airway disease for people with COPD.

How similar studies have gone: Early technical studies suggest PCCT can improve spatial resolution and material discrimination, but applying harmonized protocols for emphysema and airway metrics is relatively new and not yet widely validated.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* This study recruit from the Duke-COPDGene Phase 4 study. All participants from this cohort is eligible and they will be included if they consent.

Exclusion Criteria:

* This study recruit from the Duke-COPDGene Phase 4 study. All participants from this cohort is eligible and they will be included if they consent.

Where it's running

  • Duke University Hospital
    Durham, North Carolina, United States
    Recruiting

Study contacts

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.