COVID-19 Vaccines May Offer Surprise Benefit for Cancer Patients
Preliminary research suggests that the most widely used COVID-19 vaccines may have a surprising benefit for certain cancer patients, particularly those with advanced lung or skin cancer. According to a study being reported in the journal Nature, receiving a Pfizer or Moderna shot within 100 days of starting treatment with checkpoint inhibitors, a type of immunotherapy, can significantly improve survival rates. This is not due to any effect on virus infections but rather the vaccine's ability to enhance the immune system's response to cancer treatment.
Key Takeaways:
- The study analyzed records of nearly 1,000 advanced cancer patients undergoing checkpoint inhibitor treatment at MD Anderson and found that vaccinated lung cancer patients were nearly twice as likely to be alive three years after beginning cancer treatment as the unvaccinated patients.
- Vaccinated melanoma patients had significantly longer median survival rates, although the exact difference is unclear due to some patients still being alive when the data was analyzed.
- The mRNA molecule in the COVID-19 vaccines appears to help the immune system respond better to cancer treatment by acting as a "siren" to activate immune cells throughout the body.
- The study suggests that pairing COVID-19 vaccines with cancer drugs called checkpoint inhibitors may be more effective in treating cancer.
- Researchers are preparing a more rigorous study to confirm these findings and design new mRNA vaccines specifically for cancer treatment.
Statistics:
- Nearly 1,000 advanced cancer patients were part of the study.
- Vaccinated lung cancer patients were 1.8 times more likely to be alive three years after beginning cancer treatment as the unvaccinated patients.
- The median survival rate for vaccinated melanoma patients was significantly longer than for unvaccinated patients, although the exact difference is unclear.
Sources:
- The Associated Press: "COVID-19 Vaccines May Offer Surprise Benefit for Cancer Patients"