NCT05316727

Brief Summary

This is an observational - data and specimen collection study. There have been increasing reports of vaping-induced lung injury, including severe lung injury and rare cases of death. The mechanism by which vaping contributes to lung injury in susceptible persons is unknown, as is impact on chronic lung disease. The investigators aim to identify individuals with chronic electronic nicotine delivery device (ENDD) exposure and matched controls within our ongoing cohort of HIV+ and HIV-uninfected individuals, collect PFT data, bank respiratory and stool samples and collect clinical data for studies of clinical risk, inflammation, biomarkers, and the microbiome in the identification and modification of risk of progression to lung injury or chronic pulmonary disease.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
101

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Nov 2021

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

November 15, 2021

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

February 23, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 7, 2022

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2024

Completed
Last Updated

January 28, 2025

Status Verified

January 1, 2025

Enrollment Period

3 years

First QC Date

February 23, 2022

Last Update Submit

January 23, 2025

Conditions

Keywords

electronic nicotine delivery device (ENDD)

Outcome Measures

Primary Outcomes (9)

  • Difference in pulmonary function comparing vaping and non vaping participants (1)

    The routine lung function endpoints of FVC, will be measured with the flow-volume loop recorder on a NDD Easy One Pro testing system.

    Before bronchodilation

  • Difference in pulmonary function comparing vaping and non vaping participants (2)

    The routine lung function endpoints of FEV1, will be measured with the flow-volume loop recorder on a NDD Easy One Pro testing system.

    Before bronchodilation

  • Difference in pulmonary function comparing vaping and non vaping participants (3)

    The routine lung function endpoints of FEV1/FVC, will be measured with the flow-volume loop recorder on a NDD Easy One Pro testing system.

    Before bronchodilation

  • Difference in pulmonary function comparing vaping and non vaping participants (4)

    The routine lung function endpoints of FEF25-75%, will be measured with the flow-volume loop recorder on a NDD Easy One Pro testing system.

    Before bronchodilation

  • Difference in pulmonary function comparing vaping and non vaping participants (PB1)

    The routine lung function endpoints of FVC, will be measured with the flow-volume loop recorder on a NDD Easy One Pro testing system.

    within 10 minutes after bronchodilation

  • Difference in pulmonary function comparing vaping and non vaping participants (PB2)

    The routine lung function endpoints of FEV1 will be measured with the flow-volume loop recorder on a NDD Easy One Pro testing system.

    within 10 minutes after bronchodilation

  • Difference in pulmonary function comparing vaping and non vaping participants (PB3)

    The routine lung function endpoints of FEV1/FVC, will be measured with the flow-volume loop recorder on a NDD Easy One Pro testing system.

    within 10 minutes after bronchodilation

  • Difference in pulmonary function comparing vaping and non vaping participants (PB4)

    The routine lung function endpoints of FEF25-75%, will be measured with the flow-volume loop recorder on a NDD Easy One Pro testing system.

    within 10 minutes after bronchodilation

  • Difference in diffusion capacity comparing vaping and non vaping participants

    The routine lung function diffusion lung capacity for carbon monoxide (DLCO) will be measured.

    within 15 minutes after bronchodilation

Secondary Outcomes (3)

  • Change in inflammation

    collected at one visit -will complete analysis in 2 years.

  • Measurement of the inflammone in vaping and non vaping persons

    collection at one visit - will complete analysis in 2 years.

  • comparison of microbial communities in stool

    one stool collection at the subjects convenience - will complete analysis in 2 years.

Study Arms (2)

Vaping

At least weekly vape use over the past 3 months of the subjects unspecified product

Non vapers

No previous history of vape use and no current history of smoking tobacco for controls

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The investigators will leverage resources from an ongoing cohort of people living with HIV (PLWH) and HIV-uninfected community dwelling individuals as well as a growing dataset of individuals hospitalized with EVALI. individuals, males or females in all races, ethnicities, and socioeconomic backgrounds greater than 18 years of age.

You may qualify if:

  • Men and women age 18 to 80
  • Participant in a previous HLRC study, or a participant in the HIV PACT clinic or referred by a PACCM physician
  • At least weekly vape use over the past 3 months
  • OR No previous history of vape use and no current history of smoking tobacco for controls
  • negative pregnancy test (for women of child barring capabilities)

You may not qualify if:

  • pregnancy or breast-feeding (urine pregnancy done on all females of child bearing potential- - - males and females who are at least 1 year post menopausal or surgically sterile will not be tested)
  • Contraindication to pulmonary function testing (i.e. abdominal or cataract surgery within 3 months, recent myocardial infarction, etc.).
  • Increasing respiratory symptoms or febrile (temperature \>100.40F \[380C\]) within 4 weeks of study entry.
  • Acute cardiopulmonary issue in the past 4 months.
  • Uncontrolled hypertension at screening visit (systolic \> 180 mm Hg or diastolic \> 100 mm Hg) from an average of two or more readings. Subject may return for screening after blood pressure is controlled.
  • Active cancer requiring systemic chemotherapy or radiation.
  • Active infection of lungs, brain, or abdomen.
  • Intravenous drug use or alcohol use that will impair ability to complete study investigations in the opinion of the investigator.
  • subjects with an upper or lower respiratory tract infection
  • Persons who have tested positive for Covid 19 in the past 4 weeks.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pittsburgh department of medicine division of Pulmonary, Allergy and Critical Care medicine

Pittsburgh, Pennsylvania, 15213, United States

Location

Biospecimen

Retention: SAMPLES WITH DNA

Blood, Stool, oral wash, sputum

MeSH Terms

Conditions

Acute Lung InjuryLung InjuryVaping

Condition Hierarchy (Ancestors)

Lung DiseasesRespiratory Tract DiseasesThoracic InjuriesWounds and InjuriesSmokingBehavior

Study Officials

  • Alison Morris

    University of Pittsburgh

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

February 23, 2022

First Posted

April 7, 2022

Study Start

November 15, 2021

Primary Completion

December 1, 2024

Study Completion

December 1, 2024

Last Updated

January 28, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations