In July 2024 we published a key report on a University of Florida study that looked at cancer risk in adults with asthma. The researchers analyzed health records for more than 90,000 UK adults with asthma and found a 1.36-fold higher risk of certain cancers compared with the general population. Specific cancers flagged included lung, blood, melanoma, kidney, and ovarian cancers. One practical finding: regular use of inhaled corticosteroids appeared to lower the risk.
The study used large-scale medical records, not a clinical trial. That means it shows a link, not proof that asthma directly causes cancer. Still, the link was consistent enough to raise concerns. People with asthma had higher rates of cancers that are often linked to inflammation and immune system activity. Inhaled steroids — commonly used to control airway inflammation — were associated with a reduced cancer risk in this group. That suggests controlling chronic inflammation might matter beyond easing breathing.
Keep in mind the study focused on UK patients and used observational data. Factors like smoking history, environmental exposures, and other health problems can affect results. The researchers call for more detailed studies to confirm these findings and to explore why some cancers are more common among people with asthma.
Worried? Don’t panic. If you have asthma, the immediate takeaway is clear: control inflammation and stick to your treatment plan. Talk with your doctor about how well your asthma is managed and whether your inhaled steroid dose is appropriate. If you smoke, quitting remains the single best step to reduce lung and other cancer risks.
Also, be aware of new symptoms and attend recommended screenings for cancers if you’re in a higher-risk group. Ask your clinician whether your personal history or family history changes screening recommendations. If you use inhaled steroids, don’t stop them suddenly — discuss any medication changes with your provider.
This July post highlights a growing area of research: how chronic inflammatory diseases might affect cancer risk. We’ll track follow-up studies and practical guidance as new data appear. For now, focus on proven steps: regular asthma check-ups, medication adherence, smoking cessation, and open conversations with your health team about long-term risks and screening options.
If you want plain summaries of new studies like this one, check back on PharmNet. We’ll keep sharing clear, practical takeaways that help you make informed choices about medications, screenings, and everyday health habits.
A study by University of Florida researchers highlights increased cancer risks for asthma sufferers. Data from over 90,000 adult asthma patients reveal a 1.36 times higher likelihood of developing cancers like lung, blood, melanoma, kidney, and ovarian. Inhaled steroids show a protective effect. The findings underscore the need for more comprehensive research and effective asthma management strategies.
View More