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Small Airway Chronic Obstructive Disease Syndrome Following Exposure to WTC Dust

Small Airway Chronic Obstructive Disease Syndrome Following Exposure to WTC Dust

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03089515
Enrollment
46
Registered
2017-03-24
Start date
2017-09-07
Completion date
2021-09-01
Last updated
2022-01-24

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

Conditions

Chronic Obstructive Pulmonary Disease, Lower Respiratory Disease

Keywords

World Trade Center, World Trade Center Survivors

Brief summary

Many Survivors in the World Trade Center (WTC) clinical program have a clinical syndrome characterized by chronic obstruction in small airways and persistence of lower respiratory symptoms despite therapy. This study will test the hypothesis that persistent symptoms in WTC Survivors are associated with abnormal small airways whose dysfunction is amplified during exercise and is associated with biologic evidence of inflammation and remodeling. The results from this study will have important treatment implications for our WTC population with potential applicability to larger populations with either inhalational lung injury and/or airway diseases such as asthma and chronic obstructive pulmonary disease.

Interventions

OTHERCardio-Pulmonary Exercise Testing (CPET)

This test helps determine if the decreased tolerance to exercise or shortness of breath with activity a patient is experiencing is caused by a cardiac disease, versus a pulmonary disease.

Sponsors

NYU Langone Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Intervention model description

* Healthy Controls who were not in the WTC program (n = 20) * Uncontrolled Lower Respiratory Symptoms in WTC Surivivors; ULRS study) with persistent LRS (n = 40)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

sACOS patients * Previously participated in ULRS study and signed consent to be recontacted, or * Patient in the WTC EHC and signed consent to be recontacted * Onset of lower respiratory symptoms (LRS) after 9/11/01 * ACT \< 20 at WTC EHC Monitoring visit * Presence of LRS on Study Visit 1 * ACT\<20 at Study Visit 1 * FEV1 \> 70% predicted Study Visit 1 * Using ICS/LABA (Advair HFA equivalent \> 115/21 mcg bid) or Fluticasone (110 mcg bid or equivalent) for at least 1 month before Study Visit 1 * CXR without parenchymal abnormalities Control * Patient in the WTC EHC and signed consent to be recontacted * of lower respiratory symptoms on WTC EHC Monitoring Visit of WTC EHC * Absence of lower respiratory symptoms on Study Visit 1 * FEV1 \> 70% predicted on monitoring * Not on any ICS/LABA/LAMA

Exclusion criteria

sACOS * \>10py tobacco use * Unstable cardiac disease * Systolic BP \> 180 mmHg or Diastolic BP \> 120 mmHg * Oxygen saturation \< 90% * Uncontrolled HTN, DM * Musculoskeletal inability to exercise * Use of long acting muscarinic antagonist in the past 2 weeks * Current use of oral corticosteroids * Other pulmonary disease, including sarcoidosis, ILD * Currently pregnant or with plans to become pregnant or lactating * History of narrow angle glaucoma * Known prostate hyperplasia or bladder-neck obstruction Control * \>10py tobacco use * Unstable cardiac disease * Systolic BP \> 180 mmHg or Diastolic BP \> 120 mmHg * Oxygen saturation \< 90% * Uncontrolled HTN, DM * Musculoskeletal inability to exercise * Use of ICS/LABA/SABA/LAMA individually or in combined formulation * Current use of oral corticosteroids * Other pulmonary disease, including sarcoidosis, ILD * Currently pregnant or with plans to become pregnant or lactating * History of narrow angle glaucoma * Known prostate hyperplasia or bladder-neck obstruction

Design outcomes

Primary

MeasureTime frameDescription
Resting Lung Function using Spirometry following Forced Oscillation Techniques4 Monthsfunctional impairment at rest and with increased respiratory frequency (spirometry and forced oscillation techniques; FOT).
Measure of Lung Function using spirometry after inhalation of a targeted anti-muscarinic agent.4 MonthsSpirometry (meaning the measuring of breath) is the most common of the pulmonary function tests (PFTs), measuring lung function, specifically the amount (volume) and/or speed (flow) of air that can be inhaled and exhaled.

Secondary

MeasureTime frameDescription
Comparison of measure of serum marker CRP4 MonthsInflammation is caused by extra protein released from the site of inflammation that circulates in the bloodstream. The erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and plasma viscosity (PV) blood tests are commonly used to detect this increase in protein. In this way they are used as markers of inflammation.
Comparison of measure of serum marker IL-64 MonthsInflammation is caused by extra protein released from the site of inflammation that circulates in the bloodstream. The erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and plasma viscosity (PV) blood tests are commonly used to detect this increase in protein. In this way they are used as markers of inflammation.
Th2 inflammation By measure of periostin4 MonthsInflammation is caused by extra protein released from the site of inflammation that circulates in the bloodstream. The erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and plasma viscosity (PV) blood tests are commonly used to detect this increase in protein. In this way they are used as markers of inflammation.
Th2 inflammation By measure of fibrinogen4 MonthsInflammation is caused by extra protein released from the site of inflammation that circulates in the bloodstream. The erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and plasma viscosity (PV) blood tests are commonly used to detect this increase in protein. In this way they are used as markers of inflammation.
Comparison of measure of serum marker IL-84 MonthsInflammation is caused by extra protein released from the site of inflammation that circulates in the bloodstream. The erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and plasma viscosity (PV) blood tests are commonly used to detect this increase in protein. In this way they are used as markers of inflammation.

Countries

United States

Outcome results

None listed

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