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Thursday, 04/27/2017 12:25:17 PM

Thursday, April 27, 2017 12:25:17 PM

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part one/ i will read/ Cuba’s Had A Lung Cancer Vaccine For Years, And Now It’s Coming To The U.S.
By Erin Schumaker , Anna Almendrala

http://www.huffingtonpost.com/2016/02/22/cuba-lung-cancer-vaccine_n_7267518.html

President Barack Obama became the first president to visit Cuba in almost 90 years when he and first lady Michelle Obama traveled to the island nation in March. But one of the most exciting things about the thawing of relations between Cuba and the U.S. is happening stateside right now: the possibility of clinical trials on a drug to prevent lung cancer, and possibly other cancers, too.

CimaVax, which is both a treatment and vaccine for lung cancer, has been researched in Cuba for 25 years and free to the Cuban public since 2011. New York Governor Andrew Cuomo’s trade mission to Cuba in April 2015 resulted in a signed agreement to bring CimaVax to the U.S., but as with all international drugs and treatments, U.S. researchers need to conduct clinical trials and replicate international scientists’ results before it becomes available to the American public.

“We’re still at the very early stages of assessing the promise of this vaccine, but the evidence so far from clinical trials in Cuba and Europe has been striking,” said Dr. Kelvin Lee, Jacobs Family Chair in Immunology and co-leader of the Tumor Immunology and Immunotherapy Program at Roswell Park Cancer Institute in Buffalo, New York, the research center that is evaluating CimaVax for U.S. use.

The hoped-for success of CimaVax availability in the U.S. is just one example of the possibilities that come with open trade between the two nations. When Obama loosened the United State’s 55-year trade embargo against Cuba in December, he allowed for such joint research deals to be finalized. Similar programs might have been impossible just a few years ago.

“You never know how long these things would take,” said Candace Johnson, CEO of Roswell Park. “We would have loved to have had this already started because we’ve been working on this for quite a while, but we’re persistent and we’ll get it done.”

Cuba has long been known for its high-quality cigars, and lung cancer is a major public health problem and the fourth-leading cause of death in the country. A 2007 study of patients with stages IIIB and IV lung cancer, published in the Journal of Clinical Oncology, confirmed the safety of the CimaVax and showed an increase in tumor-reducing antibody production in more than half of cases. It proved particularly effective for increased survival if the study participant was younger than 60.

So far, 5,000 patients worldwide have been treated with CimaVax, including 1,000 patients in Cuba. Lee said the latest Cuban study of 405 patients, which has not yet been published, confirms earlier findings about the safety and efficacy of the vaccine. What’s more, the shot is cheap — each costs the Cuban government just $1, Wired reported. Studies have found there are no significant side effects.

“We think it may be an effective way to prevent cancer from developing or recurring, so that’s where a lot of our team’s excitement comes in,” Lee said. “There’s good reason to believe that this vaccine may be effective in both treating and preventing several types of cancer, including not only lung but breast, colorectal, head-and-neck, prostate and ovarian cancers, so the potential positive impact of this approach could be enormous.”

How it works

CimaVax induces people to build antibodies against a certain growth factor that cancer cells make. For people who already have lung cancer, this response results in the body actually getting rid of the cancer cells. And for people who are currently healthy but at high risk for lung cancer — say, a lung cancer patient in remission — the treatment acts as a vaccine to prevent future relapse. Johnson envisions that it could one day be a standard preventive vaccine that a person gets in childhood, much like the way we get vaccinated against polio, measles, mumps and rubella.

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