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Re: How does Perjeta work?
It is my understanding that Herceptin and Perjeta are both targeted therapies for HER2+ breast cancer. They both attack the HER2 cells, however that attack them in different ways that are believed to make the chance of recurrence substantially less. This is the definition I got from my onc and I have a lot of faith in what he has to say. Neither of these drugs have very harsh side effects and adding Perjeta does not appear to increase the risk of any cardiac issues. So compared to a lot of the therapies out there this one appears pretty mild.
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