What is Vaping?
Vaping refers to inhaling and exhaling aerosolized particles from an e-cigarette. An e-cigarette is an electronic device filled with a nicotine-based liquid that is vaporized when the device is used.
Vaping was initially hailed as an important innovation. It was believed smokers could use e-cigarettes as an alternative to tobacco. This would reduce exposure to nicotine, tar, and other hazardous substances.

What’s more, many smokers considered vaping soothing, giving them “something to do with their hands” and a way to react in stressful situations where they would usually smoke. Some people succeeded in using vaping as a stepping stone to quit smoking.
With that said, the long term effects of vaping have not been fully studied. While many individuals view vaping as a step in the right direction to eliminate smoking, more research needs to be compiled on the effects it can have on individuals and society as a whole.
What Conditions is Vaping Associated With?
The unique condition associated with vaping is referred by the new medical acronym EVALI.
It stands for E-Cigarette or Vaping Associated Lung Injury.
As of October 22, 2019, 34 known deaths were associated with EVALI. The median age of victims was 45 and 59% of them were men.
In total, nearly 2,300 cases of EVALI were reported to the CDC by November 20, 2019. All 50 states have been affected except Alaska.
Samples of lung tissue taken from victims have tested positive for high amounts of vitamin E acetate, a toxin in some vaping products. Vitamin E acetate is believed to be safe when used in nutritional supplements or skincare products, but not when ingested.
Lung damage caused by EVALI can cause symptoms similar to pneumonia. Damage to the lungs makes it difficult for the body to take in oxygen and distribute it throughout the body.
EVALI is distinct from, but related to, bronchiolitis obliterans – also known as popcorn lung. This is an inflammatory condition that affects the tiniest airways within the lungs. Inflammation can lead to scarring that blocks airways, causing coughing and shortness of breath.
What Research Currently Exists Around Vaping?
The association between vaping and EVALI is already an established scientific fact. However, it is not yet clear exactly what risk factors contribute to the development of EVALI.
Current research focuses on finding a definitive answer for what chemicals or other factors may be responsible for EVALI. This will help the medical community understand why some e-cigarette enthusiasts are affected and others are not, paving the way for effective treatment.
Why Are Further Vaping Clinical Trials Important?
Vaping clinical trials will be essential to the long-term health and quality of life of those affected by EVALI or popcorn lung. Evidence of disease has been found in teens as well as elderly adults.
Unfortunately, there is no treatment capable of reversing the lung damage caused by EVALI. As with other pervasive lung disorders, such as COPD, therapies are likely to focus on preserving healthy lung function.
Current Vaping Clinical Trials
This is the current list of active vaping clinical trials on record with ClinicalTrials.gov.
Patients are advised to watch this space carefully, since new clinical resources for vaping health are being developed rapidly.
- Clinical Research Evaluating Smoking Cessation With E-Cigarettes and Nicotine Therapyon May 18, 2026 at 4:00 am
Conditions: Smoking Cessation; Obesity and Obesity-related Medical Conditions Interventions: Other: Electronic Cigarettes (EC); Other: Nicotine replacement therapy (NRT) Sponsors: Brown University; National Institute of General Medical Sciences (NIGMS) Recruiting
- Early Detection of Vaping-related Vascular Diseaseson May 15, 2026 at 4:00 am
Conditions: Vaping; Blood Vessel Injury Sponsors: University of Miami; Florida Department of Health Recruiting
- Comparative Pharmacokinetics and Pharmacodynamics of Synthetic Nicotineon May 14, 2026 at 4:00 am
Conditions: Nicotine Dependence; Nicotine Vaping Interventions: Drug: (S)-Nicotine; Drug: (R)- nicotine; Drug: Racemic nicotine Sponsors: University of California, San Francisco; National Institute on Drug Abuse (NIDA) Recruiting
- Electronic Cigarettes as a Harm Reduction Strategy Among People With Opioid Use Disorder on Buprenorphineon May 12, 2026 at 4:00 am
Conditions: Tobacco-flavored EC; Sweet-Cooling EC; Sweet Non-cooling EC Interventions: Behavioral: Brief individual counseling sessions Sponsors: Prisma Health-Upstate; National Institute on Drug Abuse (NIDA) Recruiting
- Carcinogen and Toxicant Exposure Among Young Adults Who Co-Use E-cigarettes and Cannabis (Co-Tox Study)on May 8, 2026 at 4:00 am
Conditions: Cigarette Smoking-Related Carcinoma; E-Cig Use Interventions: Other: Effectiveness of different recruitment approaches; Other: Choice of study completion locations; Other: Cannabis Engagement Assessment; Other: E-cigarette dependence Scale Sponsors: Roswell Park Cancer Institute Recruiting
- TUBSIS 2.0 - Tobacco Use Behavioral Support and Intervention Systemon May 5, 2026 at 4:00 am
Conditions: Tobacco Use Disorder; Nicotine Dependence; Vaping; Smoking Tobacco Interventions: Behavioral: TUBSIS 2.0 Sponsors: University of Zurich; State Secretariat for Education Research and Innovation, Switzerland Recruiting
- Periodontal Health Among Cigarette, Electronic Cigarettes, and Narghile Smokerson May 1, 2026 at 4:00 am
Conditions: Smokers; Periodontal Status Interventions: Other: Non-Interventional Study Sponsors: Al-Hawash Private University Recruiting
- Development of a Mobile Health Intervention for Electronic Cigarette Use Among Young Adultson April 27, 2026 at 4:00 am
Conditions: Electronic Nicotine Delivery Systems; Tobacco Products; Cigarette Smoking Interventions: Behavioral: EQUIP; Behavioral: Standard Care Sponsors: University of Chicago Recruiting
- Social Media Support Groups for Adolescent Vaping Cessationon April 23, 2026 at 4:00 am
Conditions: Vaping; Vaping Cessation; Nicotine Dependence Interventions: Behavioral: Social Media Intervention Sponsors: University of California, San Francisco; National Cancer Institute (NCI); Rescue Agency; HopeLab Foundation Recruiting
- The Avenues Study: Dual Use Cessationon April 13, 2026 at 4:00 am
Conditions: Smoking Cessation; Electronic Cigarette Use Interventions: Drug: Varenicline; Drug: Nicotine patch; Behavioral: Dual Focused Cessation Counseling; Behavioral: Smoking Focused Cessation Counseling; Other: Counseling Intensity: 1 Session; Other: Counseling Intensity: 4 Sessions Sponsors: University of Wisconsin, Madison; National Cancer Institute (NCI) Recruiting
- Testing the Feasibility and Acceptability of Social Media and Digital Therapeutics to Decrease Vaping Behaviorson April 13, 2026 at 4:00 am
Conditions: Nicotine Vaping; Nicotine Use Disorder Interventions: Device: quitSTART Mobile Application; Behavioral: Chatbot Feature in quitSTART Mobile Application Sponsors: Washington University School of Medicine; The University of Texas Health Science Center, Houston; University of South Carolina; National Institute on Drug Abuse (NIDA) Recruiting
- Effect of Cannabis on E-Cigarette Use Behavioron April 9, 2026 at 4:00 am
Conditions: Cannabis Use; Tobacco Use; Electronic Cigarette Use Interventions: Drug: THC High Dose; Drug: THC Low Dose; Drug: THC 0mg; Drug: E-Cigarette Full Nicotine; Drug: E-Cigarette Placebo Nicotine Sponsors: Johns Hopkins University; National Institute on Drug Abuse (NIDA) Recruiting
Conclusion
It is not yet known whether EVALI represents a widespread health risk that could affect millions of users or is isolated to certain products or practices. Whatever the case, thousands of people face severe health effects right now.
Today’s vaping clinical trials will be essential to the health of former and future e-cigarette users. Being aware of the potential risks of vaping – and making family and friends aware of those risks – is advisable as more information becomes available.
Sources
- https://www.centeronaddiction.org/e-cigarettes/recreational-vaping/what-vaping
- https://www.drugabuse.gov/publications/drugfacts/vaping-devices-electronic-cigarettes
- https://www.cdc.gov/tobacco/basic_information/e-cigarettes/severe-lung-disease.html
- https://www.cdc.gov/media/releases/2019/p1028-first-analysis-lung-injury-deaths.html
- https://rarediseases.info.nih.gov/diseases/9551/bronchiolitis-obliterans
- https://www.cdc.gov/mmwr/volumes/68/wr/mm6841e3.htm?s_cid=mm6841e3_w