An observational study in Vaping and Blood Vessel Injury, sponsored by University of Miami. Recruiting at 1 site in United States. Open to participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-05-15.
Sponsored by University of Miami · Observational
The purpose of this study is to determine how vaping affects blood vessels, in particular if early damage occurs in the lung vessels.
402 studies on the registry are indexed under Vaping; 95 are open to participants now.
This study's planned enrollment of 90 is below the median of 120 across 65 observational studies indexed under Vaping.
Browse Vaping studies →University of Miami is the lead sponsor of 840 studies on the registry; 164 are open to participants now.
Of its 115 completed or terminated interventional studies of FDA-regulated products, 97 (84%) have results posted.
Counted across the registry records on this site, refreshed daily.
Healthy non smokers and vapers residing in Florida
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Vapers Group:
Healthy Group:
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
COPD
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants who have never smoked or vaped
Participants who vape \>20 days per month.
Participants who vape \< 20 days per month
Airway blood flow reactivity (QAW)
QAW will be measured via soluble gas uptake method
Time frame: Up to 1 week
Pulmonary vascular resistance (PVR)
PVR will be measured via echocardiography
Time frame: Up to 4 weeks
Flow-mediated vasodilation (FMD)
FMD will be measured by blood pressure cuff deflation using ultrasound
Time frame: Up to 4 weeks
Plan to share: No
No publications or documents are linked to this record.
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