In 2014, after smoking cigarettes for 40 years, Kati Markowitz decided to switch to vaping. She had heard the newer electronic cigarettes might be less harmful. And, at the time, she said, she wasn’t aware of other options to try to quit smoking.
For 7 years, she vaped every day.
Then Ms. Markowitz received news she’d hoped never to hear: She had lung cancer. A nodule detected in a CT scan had grown. She was scheduled for treatment – the removal of an entire lobe from her right lung. But first, she said, her surgeon told her she had to quit vaping, which reduces the risk for post-operative complications and enables a healthy recovery.
Ms. Markowitz had thought switching to vaping would be less harmful than smoking cigarettes. Now, she no longer believes that’s true.
“Did I fool myself by hoping to get lucky and not have any bad repercussions? Yes, I did,” Ms. Markowitz said, adding that she wonders if vaping contributed to her lung cancer or if she’ll experience other negative health effects in the future.
Researchers are divided on if e-cigarettes are as effective in smoking cessation as other nicotine replacement therapies like gums and lozenges. They also say more research is needed on the long-term health impacts of vaping to ultimately determine if vapes are a safe replacement for cigarettes.
“There is scientific research to support vaping as a cessation tool, but we wouldn’t use it as a first line of defense because we still need longitudinal studies to understand the long-term risk of e-cigarettes,” said Monica Hanna, MPH, assistant director of the Nicotine and Tobacco Recovery Program at RWJBarnabas Health’s Institute for Prevention and Recovery, Eatontown, N.J. “We also need research to understand exactly how we could use e-cigarettes as a cessation device.”
Vaping to quit
The first prototypes of e-cigarettes were developed in the 1930s, although what are now known as vapes weren’t sold by manufacturers until the 2000s in the United States, following an invention by a former health official in China. The vape was touted by both researchers and manufacturers over the years of development as a way to quit smoking cigarettes.
The Consumer Advocates for Smoke-free Alternatives Association, a nonprofit group that supports vaping and accepts donations from the e-cigarette industry, has compiled more than 13,000 testimonials from people who say vaping helped them give up smoking.
Studies show mixed results that using vapes can help traditional smokers quit.
A November 2022 Cochrane review showed a “high certainty of evidence that people are more likely to stop smoking traditional cigarettes for at least 6 months using e-cigarettes, or ‘vapes,’ than using nicotine replacement therapies, such as patches and gums.” The meta-analysis examined 78 studies with more than 22,000 participants. And a 2019 study with 886 participants, published in the New England Journal Medicine, found smokers who tried vaping to quit were twice as likely after a year to have stopped smoking cigarettes than those who used nicotine replacement therapy.
“In terms of the global research, it’s pretty clear that vaping can help smokers quit,” said Peter Shields, MD, a professor in the department of internal medicine at The Ohio State University College of Medicine, Columbus, who specializes in the treatment of lung cancer.
But a 2013 study published in the Lancet, and another from the Lancet in 2019, found only a modest improvement in cessation outcomes when participants used e-cigarettes paired with patches, compared with patches alone.
“For a disruptive technology that was supposed to end combustible tobacco use, there seems very little large-scale disruption,” said Thomas Eissenberg, PhD, co-director of Virginia Commonwealth University’s Center for the Study of Tobacco Products, Richmond.
Michael Joseph Blaha, MD, MPH, director of clinical research at the Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Baltimore, pointed to research that shows a portion of people who start vaping to quit smoking end up using both products – or become so-called “dual” users.
“I do think there is fairly high-quality evidence that vaping can lead to more cessation, but at the tradeoff of more long-term dual users and more overall nicotine addiction,” Dr. Blaha said. “Vaping remains a third-line clinical tool after nicotine replacement therapy and FDA-approved cessation medications.”
The U.S. Food and Drug Administration has not approved any e-cigarette or vaping device for smoking cessation, like it has for patches and gums, which means manufacturers cannot market their products as helping tobacco smokers quit.
“ Ms. Hanna, from RWJBarnabas Health’s Institute for Prevention and Recovery, said.