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Birrer Assesses Current Challenges in Cervical Cancer

Allie Strickler @Alliejayes
Published: Monday, Nov 21, 2016

Michael Birrer, MD, PhD

Michael Birrer, MD, PhD

Oncologists continue to face several challenges when it comes to the prevention and treatment of cervical cancer, according to Michael Birrer, MD, PhD.

, Birrer discussed both the recent advancements and remaining challenges in the treatment landscape of cervical cancer.

OncLive: Are there any burgeoning advancements on the horizon right now for cervical cancer?

Birrer: I can’t say there’s anything definitive in terms of results, but what we’re all anticipating is that it is going to be meaningful, that this is the poster child for immunotherapy. This is an HPV-driven tumor, just like head and neck cancer. The viral antigens are there, and it should really be responsive, or we should at least get disease control using the checkpoint inhibitors.

There’s even some talk about moving the immune checkpoint inhibitors upfront in pre-invasive disease. If you have a patient with CIN 3 or even carcinoma in situ, and give them 1 or 2 cycles of [an immune checkpoint inhibitor], would that save them from conization or hysterectomy? The challenge there, of course, is this is still a curable patient population, so we don’t necessarily want to mess around with it too much. We don’t want to do the wrong thing. Also, a shot of pembrolizumab (Keytruda) is probably ,000, so the whole proposition is a bit expensive.

What are some of the main challenges that should be addressed in the next couple of years in cervical cancer?

Sadly to say, essentially all cervical cancers could be completely eliminated—if we got the vaccine out to everyone. And what is remarkable to me is that our vaccination rate in this country is still very low. If you go into third-world nations, it’s low, but we understand that. It’s expensive, and it’s difficult to get it out there. We don’t really have an excuse here in the United States. Luckily, we have the backup with Pap smears, which work fine, but still, we need much better penetration of the population with the HPV vaccine. And that includes boys, which has now been approved. That’ll have a huge effect.

For treatment, we still have this subset of patients who are not operable. They get chemoradiation, and it is quite effective, it clearly cures patients, but there’s a subset of patients whose tumors comes back, and it’s extremely difficult to deal with. A small percentage of those patients are exenteration candidates, and I still think that’s a procedure I’d like to see disappear, because it’s so horrific, regardless of the fact that it can salvage patients. We need to get better therapies for those patients.

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Online CME Activities
TitleExpiration DateCME Credits
Community Practice Connections™: New Directions in Advanced Cutaneous Squamous Cell Carcinoma: Emerging Evidence of ImmunotherapyAug 13, 20191.5
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