StemCell Therapy

People living with cancerincluding those undergoing treatmentshould receive COVID-19 vaccines as soon as they are available, according to new guidelines from the National Comprehensive Cancer Network (NCCN).

While people with some types of cancer and those receiving certain cancer treatments may not respond quite as well, the vaccines should still provide partial protection, which is especially important because some cancer patients are at higher risk for COVID-19 complications.

Right now, there is urgent need and limited data, said committee co-leader Steve Pergam, MD, MPH,of the Seattle Cancer Care Alliance and the Fred Hutchinson Cancer Research Center, headquarters of the National Institutes of Healths COVID-19 Prevention Network. Our number one goal is helping to get the vaccine to as many people as we can. That means following existing national and regional directions for prioritizing people who are more likely to face death or severe illness from COVID-19. The evidence we have shows that people receiving active cancer treatment are at greater risk for worse outcomes from COVID-19, particularly if they are older and have additional comorbidities, like immunosuppression.

Much remains to be learned about COVID-19 in people with cancer. Studies have shown that people with blood cancers like leukemia or lymphoma and lung cancer are at greater risk for severe COVID-19 and death, but those with other types, such as breast or lung cancer, do not appear to be at higher risk. Patients with active or advanced cancer are likely to fare worse. Although studies of the effects of cancer treatment on COVID-19 outcomes have yielded conflicting results, therapies that cause immune suppression seem to lead to poorer outcomes.

Two mRNA vaccines from Pfizer/BioNTech and Moderna were authorized by the Food and Drug Administration in December. These vaccines were 95% and 94% effective for preventing symptomatic COVID-19 in Phase III clinical trials. Vaccine candidates from AstraZeneca, Johnson and Johnson and Novavax are also effective, especially for preventing severe disease, and are likely to receive emergency use authorization in the coming months. All the vaccines were shown to be safe.

A Centers for Disease Control and Prevention (CDC) advisory committee developed a vaccine prioritization plan that puthealth care workers and residents of long-term care facilitiesfirst in line, followed bypeople overage 75 and certain frontline essential workers. The CDC later expanded eligibility to include everyone over 65 and people with underlying health conditionsincluding cancerthat put them at risk for more severe COVID-19. But current supplies are nowhere near adequate to vaccinate everyone whos eligible.

The NCCNs COVID-19 Vaccine Committee, which includes top hematology and oncology experts in the areas of infectious diseases, vaccine development and delivery, medical ethics and health information technology, recommends that all people with cancer should get a vaccine. The committee also advises that caregivers and people living in the same household with cancer patients should also get vaccinated when they are eligible.

While clinical trials have shown that the vaccines are highly effective at reducing the risk of becoming ill with COVID-19, it is still not clear how well they prevent asymptomatic infection and transmission, so the committee emphasizes the importance of continuing to follow precautions such as wearing masks and social distancing.

Although people on cancer treatment were excluded from the COVID-19 vaccine trials, experts say theres no reason to think the vaccines wont be safe for this group. The currently authorized vaccines do not contain live virus and therefore cannot cause disease, even in immunocompromised people.

The data we have on these vaccines shows theyre remarkably safe in the general population based on the trials. Admittedly, very few patients with active cancer or in active therapy were included in the trials. But having gone through all the documentation for both of these vaccines, it looks remarkably safe, Gary Lyman, MD, of Fred Hutch, who helped start the COVID-19 and Cancer Consortium, told the Fred Hutch News Service. I have no real concerns that there will be big surprises when it comes to safety for the cancer patient population. The risk to these patients from COVID is high and the risks from the vaccines appear very low.

While the vaccines appear safe for people with cancer, some patients may not respond as well, particularly those whose cancer or treatment causes immune suppression. Some blood cancers affect B cells, the white blood cells that produce antibodiesa key player in vaccine response. Chemotherapy and radiation can deplete white blood cells, and people undergoing stem cell transplants or receiving CAR-T therapy have their own immune cells killed off with chemo or radiation to make room for the new cells.

The NCCN committee recommends that people receiving intensive chemotherapy for leukemia should wait to be vaccinated until their white blood cell count recovers. Stem cell transplant and CAR-T recipients should delay vaccination until three months after the procedure to improved the chances that the vaccine will produce a good immune response. People undergoing major surgery should wait at least a few days. But everyone elseincluding patients receiving chemotherapy for solid tumors, targeted therapy, immunotherapy or radiation therapyshould get a vaccine as soon as they can.

If it is necessary to prioritize among people with cancer, the committee recommends moving those on active treatment (except those taking only hormone therapy), those who plan to start treatment soon and those who have recently finished treatment to the front of the line. Cancer patients with other risk factors, including older age and additional health conditions, should also be prioritized.

Finally, the guidance acknowledges the disparities and social inequities related to COVID-19Black and Latino people are more likely to be exposed to the coronavirus and more likely to develop severe disease and die from it, but are less likely to get vaccinated.

One of our primary goals is reducing morbidity and mortality, saidSirisha Narayana, MD,chair of the University of California at San Francisco Ethics Committee. We also have to take social determinants of health into account and make special efforts for people in high-risk communities.

The medical community is rising to one of the biggest challenges we have ever faced, addedNCCN CEO Robert Carlson, MD. The COVID-19 vaccines exemplify the heights of scientific achievement. Now we have to distribute them quickly, equitably, safely and efficiently, using clearly defined and transparent principles.

Given their higher risk for COVID-19, the NCCN, the American Society of Clinical Oncology and other advocates are asking that people with cancer be given priority for vaccination.

People with metastatic and active cancers die at a rate similar to people over age 75; if we die at the rate of 75 year olds we should be vaccinated with the 75 year olds, Kelly Shanahan, an advocate living with metastatic breast cancer, told Cancer Health. Those of us with active and metastatic cancers dont have the luxury of just staying home. We must get our treatments and scans and see our oncologists. Keep us out of the hospitalsand morguesby prioritizing us for the COVID19 vaccinations!

Click here to read the full NCCN COVID-19 vaccine guidance.

Click here for more news about COVID-19.For more, visit our sister site, COVID Health.com.

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People With Cancer Should Receive COVID-19 Vaccine, Experts Say - Cancer Health Treatment News

This entry was posted on February 4, 2021 at 1:51 pm and is filed under Stem Cell Complications. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed. |