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Cancer Risks and The Role of Patient Decision Making

January 06, 2025
  • 00:00Funding for Yale Cancer Answers
  • 00:02is provided by Smilow Cancer
  • 00:04Hospital.
  • 00:06Welcome to Yale Cancer Answers
  • 00:08with the director of the
  • 00:09Yale Cancer Center, Doctor Eric Winer.
  • 00:12Yale Cancer Answers features conversations
  • 00:14with oncologists and specialists who
  • 00:16are on the forefront of
  • 00:17the battle to fight cancer.
  • 00:19This week, it's a conversation
  • 00:20about some of the decisions
  • 00:22patients are faced with in
  • 00:23the treatment of breast cancer
  • 00:24with doctor Sarah Schellhorn.
  • 00:26Doctor Schellhorn is an associate
  • 00:28professor of medicine and medical
  • 00:29oncology at the Yale School
  • 00:31of Medicine.
  • 00:32Here's doctor Winer.
  • 00:34I know that
  • 00:36over the course of the
  • 00:38past decade plus, you have
  • 00:40taken care of
  • 00:41countless
  • 00:43women with breast cancer.
  • 00:47And some of those are
  • 00:48young women.
  • 00:50As people know, breast cancer
  • 00:52affects women of all ages.
  • 00:53It becomes more common
  • 00:55as women grow older, but
  • 00:57it
  • 00:58is a cancer that's pretty
  • 01:00common in younger women too.
  • 01:03And so issues about fertility
  • 01:06come up.
  • 01:07They sure do.
  • 01:08And,
  • 01:09maybe you could just, you
  • 01:11know, start with a few
  • 01:12thoughts
  • 01:13about
  • 01:14how you approach those conversations
  • 01:16with patients.
  • 01:18It's always a challenge
  • 01:20when you're meeting a patient
  • 01:21for the first time and
  • 01:24they've been given this
  • 01:26new diagnosis of breast cancer,
  • 01:28and there are lots of
  • 01:29things that have to be
  • 01:30talked about regarding the new
  • 01:32cancer, regarding the treatment, regarding
  • 01:34all the options. You've got
  • 01:36surgical options and medication options
  • 01:39radiation options, and it
  • 01:41can all be overwhelming.
  • 01:44But it's really important to
  • 01:46remember
  • 01:47that young women in particular,
  • 01:50may not have completed their
  • 01:52families. They may not have
  • 01:56had children or as many
  • 01:58children as they would want.
  • 01:59They may have
  • 02:01plans, and they may have
  • 02:02been putting things off for
  • 02:03career or other reasons.
  • 02:05And those are NOTE Confidence: 0.9790995
  • 02:06critical lifestyle
  • 02:08pieces
  • 02:09that we have to consider
  • 02:11in the treatment of
  • 02:12breast cancer. So
  • 02:14when I see a new
  • 02:15patient
  • 02:16that I have a little
  • 02:17bit of a mental checklist,
  • 02:19that I go through
  • 02:21that's
  • 02:22certainly talk about the cancer,
  • 02:23talk about the reasons for
  • 02:25various treatments, and the reasons
  • 02:27why things are being recommended.
  • 02:29But we also wanna make
  • 02:30sure that we're taking into
  • 02:31account,
  • 02:32is your family complete? Have
  • 02:34you ever thought about having
  • 02:35children? Because a lot of
  • 02:36the treatments that we use
  • 02:37in the treatment of breast
  • 02:38cancer
  • 02:39can affect
  • 02:41someone's future fertility.
  • 02:43They may prevent someone from
  • 02:45being able to carry a
  • 02:46healthy pregnancy
  • 02:48if they were to become
  • 02:49pregnant while on these medications.
  • 02:51So these are critical conversations
  • 02:53that have to happen.
  • 02:59And they can effect fertility in different ways.
  • 03:01Chemotherapy, for example.
  • 03:03Chemotherapy,
  • 03:05as I think many of
  • 03:06our listeners know,
  • 03:08can
  • 03:09put a woman into menopause.
  • 03:11Yes.
  • 03:12But
  • 03:13that's not always the case,
  • 03:15and it's very much age
  • 03:16related.
  • 03:17Yes.
  • 03:19Talk about that a little
  • 03:20bit. I mean, if
  • 03:21you're a twenty five
  • 03:23year old, are you gonna
  • 03:24go into menopause with chemotherapy?
  • 03:26You may go into
  • 03:27a temporary menopause, and you
  • 03:28may have hot flashes and
  • 03:29be kind of uncomfortable from
  • 03:31a menopausal standpoint
  • 03:33for a short period of
  • 03:34time. But in all likelihood,
  • 03:37a twenty five year old
  • 03:38has very robust ovaries that
  • 03:40are gonna kick it back
  • 03:41into gear
  • 03:42within a few months from
  • 03:44completing chemotherapy.
  • 03:46The older a woman is
  • 03:47and the closer to natural
  • 03:49menopause,
  • 03:50the less likely
  • 03:52that they will regain fertility.
  • 03:55But a twenty five year
  • 03:56old, a thirty year old,
  • 03:57very likely to be
  • 03:59able to
  • 04:02have menstrual
  • 04:04cycles again, may be able
  • 04:05to become pregnant. And there
  • 04:07are even things that we
  • 04:08can do during chemotherapy
  • 04:10that can help preserve fertility.
  • 04:12And what are those things?
  • 04:16I feel like you might
  • 04:17know the answer to this
  • 04:18question, but
  • 04:20you can actually
  • 04:22use medications
  • 04:24called GnRH agonists. They're
  • 04:26shots, injections that
  • 04:29effectively put the ovaries to
  • 04:31sleep, kind of put them
  • 04:32into a dormant
  • 04:34status so that the chemotherapy
  • 04:36doesn't affect them as much.
  • 04:38And
  • 04:39studies have shown that women
  • 04:41who receive
  • 04:43these additional treatments during chemotherapy
  • 04:46are more likely to go
  • 04:48on and carry healthy pregnancies
  • 04:51in the future.
  • 04:52So we use those a lot
  • 04:53in people who desire future
  • 04:54fertility.
  • 04:55So that's one option
  • 04:57during chemotherapy itself.
  • 05:02But you also have to remember
  • 05:03when someone is
  • 05:05undergoing chemotherapy and their
  • 05:07ovaries are a certain age,
  • 05:09whatever that age is,
  • 05:12those ovaries are not getting
  • 05:13any younger, and any eggs
  • 05:15that are contained in those
  • 05:16ovaries aren't getting any younger.
  • 05:18And so even when we
  • 05:20try to
  • 05:21preserve someone's fertility by using
  • 05:23these injections,
  • 05:25we still may advise
  • 05:27them to preserve eggs or
  • 05:29embryos if they're in a
  • 05:30committed relationship
  • 05:34to enhance the options of
  • 05:36having a healthy baby, healthy
  • 05:38pregnancy
  • 05:39down the line. Because
  • 05:40the older an ovary gets,
  • 05:41the older the egg gets,
  • 05:43the more chances that
  • 05:46genetically, a baby may have
  • 05:48more problems.
  • 05:50Well in
  • 05:52my former institution before I
  • 05:54came to Yale a few
  • 05:55years ago,
  • 05:57we had started a program for
  • 06:00young women with breast cancer,
  • 06:03something that we're actually starting
  • 06:06at Smilow,
  • 06:07for not just young women
  • 06:09with breast cancer, but young
  • 06:10people with cancer in general.
  • 06:12But the reason I bring
  • 06:14this up is that
  • 06:15initially,
  • 06:16we set
  • 06:17the cut point for age
  • 06:19at forty two.
  • 06:22It eventually snuck up a
  • 06:23little bit as the person
  • 06:24who was directing that program
  • 06:27also got a little older.
  • 06:29But the reason we picked
  • 06:31forty two is that
  • 06:33that was probably an
  • 06:35age where there aren't a
  • 06:36lot of people who are
  • 06:38still
  • 06:38thinking about becoming pregnant after
  • 06:41that age.
  • 06:42And while there may be
  • 06:43a few,
  • 06:45our options
  • 06:46are much more limited.
  • 06:48But,
  • 06:50the other complicating
  • 06:52feature is that we also
  • 06:54sometimes
  • 06:55suppress
  • 06:56the function of ovaries
  • 06:58as part of treatment for
  • 07:00breast cancer.
  • 07:01Or we use medications
  • 07:03that are
  • 07:05contraindicated.
  • 07:06They can't be given during
  • 07:07pregnancy because they cause fetal
  • 07:09abnormalities.
  • 07:11And these are
  • 07:12the hormone based treatments or
  • 07:15probably more appropriately anti hormone,
  • 07:17antiestrogens.
  • 07:21So depending on whatever clinical circumstance,
  • 07:23we might put someone into
  • 07:25menopause,
  • 07:26in which case they can't
  • 07:27become pregnant naturally,
  • 07:29if they're in menopause. Their
  • 07:31ovaries are not functioning.
  • 07:33Or we use a drug
  • 07:34called tamoxifen,
  • 07:36which cannot be given during
  • 07:38pregnancy.
  • 07:39And these are given for
  • 07:40a long time. They're given
  • 07:41for at least five years
  • 07:44in many cases,
  • 07:46assuming they're well tolerated.
  • 07:48And that's five years of
  • 07:50time
  • 07:51where ovaries are also getting
  • 07:53older and eggs that are
  • 07:54in the ovaries are getting
  • 07:55older. So it may become
  • 07:57just because of
  • 07:59normal, natural
  • 08:00history of a woman's fertility,
  • 08:02it may be harder to
  • 08:03become pregnant after five years
  • 08:04of endocrine therapy.
  • 08:06So I'm not
  • 08:08sure if this is where
  • 08:09you were pointing
  • 08:10our conversation, but
  • 08:12there's a
  • 08:13study called the positive study,
  • 08:16designed, I think, primarily by
  • 08:18people at your former institution,
  • 08:23that looked at discontinuing
  • 08:25endocrine therapy, tamoxifen
  • 08:27or others,
  • 08:28earlier than the five years.
  • 08:30So women had to be
  • 08:31on that medication for
  • 08:34at least eighteen months, but
  • 08:36could be longer.
  • 08:38And the medication was
  • 08:39discontinued in an effort to
  • 08:41have them achieve
  • 08:43a normal pregnancy, either
  • 08:45through natural
  • 08:47means or through
  • 08:49additional fertility treatments.
  • 08:51And so far, the results
  • 08:53from that study have been
  • 08:54incredibly
  • 08:56positive, incredibly
  • 08:58optimistic
  • 08:59that women can
  • 09:01stop endocrine therapy,
  • 09:03have a pregnancy, deliver a
  • 09:05baby, even breastfeed for a
  • 09:06little bit, and then go
  • 09:08back on endocrine therapy with
  • 09:10no detrimental effects to their
  • 09:12ultimate outcome, although we're still
  • 09:13waiting for long term
  • 09:15follow-up of this study.
  • 09:17And and, of course, we
  • 09:18couldn't do the ultimate study,
  • 09:21which would be to randomize
  • 09:22patients because it's pretty hard
  • 09:24to
  • 09:25randomize someone to get pregnant
  • 09:27or you don't get pregnant.
  • 09:28That's a tough thing to do.
  • 09:31That's not one
  • 09:32that can be done.
  • 09:34What was interesting about the
  • 09:36results from the study too
  • 09:37is that,
  • 09:39about three quarters of the
  • 09:41women, if I remember correctly,
  • 09:43actually
  • 09:44were able to become pregnant
  • 09:46and deliver a child,
  • 09:48which is a remarkably
  • 09:50high percentage.
  • 09:52It is, especially given that
  • 09:54a fair number of those
  • 09:55women got chemotherapy,
  • 09:57so really reassuring,
  • 09:59and I think opens a
  • 10:01lot of doors
  • 10:02that we previously would have
  • 10:04considered closed
  • 10:06for younger women with breast
  • 10:08cancer.
  • 10:10It does seem that
  • 10:12as complicated as this dance is around
  • 10:16breast cancer treatment and pregnancy,
  • 10:18that there's often a way
  • 10:20to navigate
  • 10:22a result that is gonna
  • 10:24both be optimal
  • 10:26in terms of treating the
  • 10:27cancer and will also give
  • 10:29somebody the chance to have
  • 10:30a child if that's what
  • 10:31they really wanna do.
  • 10:33It's a careful conversation.
  • 10:36It's a long conversation.
  • 10:39It can be a really
  • 10:40emotional and intense conversation,
  • 10:43because
  • 10:44pretty
  • 10:45far reaching ramifications for a
  • 10:47woman's future. But
  • 10:50we are often able to
  • 10:52navigate
  • 10:54chemotherapy,
  • 10:55fertility treatments prior to chemotherapy.
  • 10:58And even when someone needs
  • 10:59to be on endocrine therapy
  • 11:00long term,
  • 11:03getting a woman to a
  • 11:04point where she can try
  • 11:06to naturally
  • 11:07have a child or
  • 11:09with some medical help have
  • 11:11a child.
  • 11:12And for our listeners,
  • 11:15it is worth pointing out
  • 11:16that years ago, meaning twenty,
  • 11:18thirty years ago,
  • 11:20it was
  • 11:21widely assumed that getting pregnant
  • 11:24after breast cancer
  • 11:25was something that you always
  • 11:27wanted to avoid because the
  • 11:28pregnancy could stimulate a recurrence.
  • 11:31And that really doesn't seem
  • 11:33to be the case.
  • 11:34In the data we have
  • 11:38it has never really been shown. In fact, it
  • 11:40hasn't been shown.
  • 11:42That's right. So I think
  • 11:43we're in a
  • 11:44much better place. We
  • 11:46also now
  • 11:47can not only preserve embryos,
  • 11:50but if someone doesn't have
  • 11:51a partner,
  • 11:52we can save
  • 11:54eggs, eggs or pieces
  • 11:56of ovarian tissue, all kinds
  • 11:58of different things,
  • 12:00that fertility specialists have at
  • 12:02their fingertips to be able to help.
  • 12:06Again, nothing's a
  • 12:07hundred percent, but lots of
  • 12:09options that can be explored.
  • 12:11And I think this
  • 12:12is another example of the
  • 12:13fact that
  • 12:14you often need
  • 12:16doctors
  • 12:18and nurses and others from
  • 12:19many different fields to provide
  • 12:21optimal care.
  • 12:23And as medical oncologists,
  • 12:26we're not the ones prescribing
  • 12:28fertility treatments
  • 12:30and we need to work
  • 12:31with our our colleagues in
  • 12:34OB GYN.
  • 12:37The treatment of breast cancer,
  • 12:38the treatment of any cancer,
  • 12:39requires a lot of
  • 12:40hands on deck,
  • 12:42and close connections with
  • 12:44lots of different disciplines and
  • 12:45fields,
  • 12:47to be able to provide
  • 12:48truly comprehensive
  • 12:50whole patient care.
  • 12:52I just wanna come
  • 12:53back in our
  • 12:55last
  • 12:56few seconds before the break
  • 12:58and
  • 12:59just touch very briefly on
  • 13:01the fact that
  • 13:03we all recognize this is
  • 13:04an emotionally charged
  • 13:06experience. I mean, having cancer
  • 13:08is hard enough. Having cancer
  • 13:10and worrying about wanting to
  • 13:12become pregnant or maybe even
  • 13:14being pregnant at the time
  • 13:15just makes it that much
  • 13:16harder.
  • 13:20It's hard enough,
  • 13:22to have to have these
  • 13:23conversations about treatment. And you
  • 13:25throw
  • 13:27fertility and families
  • 13:28into it,
  • 13:30it is that much harder.
  • 13:31Well, we're gonna take just a
  • 13:34very brief break, and I'll
  • 13:36return in
  • 13:38just a minute with doctor
  • 13:39Sarah Schellhorn,
  • 13:41associate professor at Yale School
  • 13:43of Medicine, and we'll continue
  • 13:45our conversation about
  • 13:48other issues related to breast
  • 13:49cancer.
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  • 13:56program provides screening to those
  • 13:57at risk for lung cancer
  • 13:59and individualized
  • 14:00state of the art evaluation
  • 14:02of lung nodules.
  • 14:03To learn more, visit smilowcancerhospital
  • 14:06dot org.
  • 14:08The American Cancer Society estimates
  • 14:10that over two hundred thousand
  • 14:12cases of melanoma will be
  • 14:13diagnosed in the United States
  • 14:15this year, with over a
  • 14:16thousand patients in Connecticut alone.
  • 14:19While melanoma
  • 14:20accounts for only about one
  • 14:22percent of skin cancer cases,
  • 14:24it causes the most skin
  • 14:26cancer deaths, but when detected
  • 14:28early it is easily treated
  • 14:29and highly curable.
  • 14:31Clinical trials are currently underway
  • 14:33at federally designated comprehensive cancer
  • 14:35centers such as Yale Cancer
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  • 14:39Hospital
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  • 14:50skin cancer with a focus
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  • 14:55treatment.
  • 14:56More information is available at
  • 14:58yale cancer center dot org.
  • 15:00You're listening to Connecticut Public
  • 15:02Radio.
  • 15:04Hello again. This is Eric
  • 15:06Winer from the Yale Cancer
  • 15:08Center here with Yale Cancer Answers.
  • 15:11And I'm joined tonight by
  • 15:13doctor Sarah Schellhorn, associate professor
  • 15:15of medicine
  • 15:16and a breast cancer expert.
  • 15:19We spent the last
  • 15:21fifteen minutes or so talking
  • 15:22about pregnancy and breast cancer.
  • 15:25We're gonna move on and
  • 15:26talk about other hormonal aspects
  • 15:28of breast cancer or in
  • 15:30particular,
  • 15:31hormonal or anti hormonal treatments.
  • 15:35These are given to
  • 15:37a large number of women
  • 15:39with breast cancer
  • 15:40because
  • 15:41somewhere in the range of
  • 15:43in excess of seventy
  • 15:46five percent of all breast
  • 15:47cancers
  • 15:49are sensitive to female reproductive
  • 15:51hormones.
  • 15:53Sarah,
  • 15:54maybe you could
  • 15:56just talk about
  • 15:58generally the benefits
  • 16:00of
  • 16:01these anti hormonal treatments and
  • 16:04perhaps describe the two most
  • 16:07common ones that we use
  • 16:09to help prevent recurrences.
  • 16:10Sure.
  • 16:12So it's really interesting.
  • 16:13I think there's a kind
  • 16:14of an interesting historical piece to
  • 16:19the treatment of breast cancer.
  • 16:20If you think back, and
  • 16:21I can't give you
  • 16:22an exact date, but many
  • 16:24decades
  • 16:25ago,
  • 16:27the treatment of breast cancer
  • 16:29was pretty morbid, lots of
  • 16:30big surgeries. There were some
  • 16:32studies of chemotherapy. But what
  • 16:34was discovered was some
  • 16:37in many women with breast
  • 16:38cancer,
  • 16:39taking out their ovaries and
  • 16:41putting them into menopause seemed
  • 16:43to be a pretty good
  • 16:43treatment for breast cancer. And
  • 16:45it was on that
  • 16:47further studies showed that
  • 16:50many breast cancers, as you
  • 16:52said,
  • 16:53probably more than three
  • 16:54quarters of all breast cancers,
  • 16:56express
  • 16:57the estrogen receptor or the
  • 16:59progesterone receptor.
  • 17:01And these are
  • 17:02hormone
  • 17:04receptors that require
  • 17:06kind of seeing the hormone,
  • 17:07estrogen or progesterone,
  • 17:09that leads to cells,
  • 17:11cancer cells in particular,
  • 17:13getting the signals they need
  • 17:15to grow and divide.
  • 17:16And so these cancers are,
  • 17:18in essence, fueled by hormones.
  • 17:21And
  • 17:23a number of different types
  • 17:25of drugs have been developed
  • 17:26that work on that interaction
  • 17:31between the hormone and its
  • 17:32receptor.
  • 17:33The oldest is a drug
  • 17:35called tamoxifen,
  • 17:36which
  • 17:38is a competitive
  • 17:40antagonist in the breast
  • 17:41of estrogen. All that means
  • 17:43is if we think about
  • 17:44a receptor kind of like
  • 17:45a baseball glove
  • 17:47and we think about the
  • 17:48hormone like a baseball and
  • 17:49the glove catches the
  • 17:51baseball,
  • 17:52tamoxifen
  • 17:53is kind of like a
  • 17:54grapefruit.
  • 17:55And if you're holding it running
  • 17:57around in the outfield of
  • 17:58a baseball field, holding a
  • 17:59grapefruit in your baseball glove,
  • 18:00you're never gonna be able
  • 18:01to catch a baseball. It's
  • 18:02kind of how I describe
  • 18:03it to patients.
  • 18:06But
  • 18:07Tamoxifen blocks that as the result.
  • 18:08Great way of describing
  • 18:10it and for listeners it actually even
  • 18:12works without seeing your hands.
  • 18:15I've got some
  • 18:16really great hand gestures going
  • 18:17on right now.
  • 18:18It then leads into a big conversations about
  • 18:20baseball teams
  • 18:22and Yankees and
  • 18:23Red Sox, but I won't
  • 18:25go there. But,
  • 18:27tamoxifen,
  • 18:28when it's given for
  • 18:30five years, maybe longer,
  • 18:32has been shown to reduce
  • 18:34the chances of a breast
  • 18:35cancer coming back by about
  • 18:38half, by a
  • 18:40relative
  • 18:41risk reduction of fifty percent.
  • 18:44And if we can just
  • 18:45say for a minute what
  • 18:46that means in people's
  • 18:48terms.
  • 18:49So if you have a
  • 18:52ten percent chance of having
  • 18:53a recurrence, it goes down
  • 18:55to about five. If
  • 18:56you have a twenty five
  • 18:58percent chance of having a
  • 19:00recurrence of your cancer, because
  • 19:01it's a higher risk cancer,
  • 19:03it would go down to
  • 19:04twelve and a half percent.
  • 19:06Right.
  • 19:07It's pretty powerful treatments.
  • 19:11Arguably it is the first
  • 19:12real personalized
  • 19:14targeted therapy in cancer.
  • 19:18So tamoxifen's been around for
  • 19:20years and years and years.
  • 19:24And it's got sort of
  • 19:25a bad rap.
  • 19:27Why is that?
  • 19:28I think
  • 19:29with the advent of social
  • 19:31media and online
  • 19:33web based
  • 19:34chat groups, there's a lot
  • 19:36of information sharing.
  • 19:38And
  • 19:39tamoxifen does have some potential
  • 19:41side effects. It can cause
  • 19:43hot flashes. It can cause
  • 19:44mood changes. It can cause
  • 19:46fluid retention and weight gain
  • 19:48and cause people to not
  • 19:49feel
  • 19:50terribly normal, causes headaches.
  • 19:52Lots of things that
  • 19:55are maybe not horrible from
  • 19:57a medical standpoint, but from
  • 19:59a lifestyle
  • 20:00quality of life standpoint can
  • 20:02be really
  • 20:03problematic.
  • 20:05But many women
  • 20:07tolerate the pill just fine.
  • 20:09And
  • 20:10when we think about who
  • 20:12are the
  • 20:13loudest people on these web
  • 20:15based chat groups, often it's
  • 20:17the people who are having
  • 20:18the problems,
  • 20:20that
  • 20:22appropriately,
  • 20:23are asking for help and
  • 20:24asking for advice.
  • 20:27And the people who are
  • 20:27doing just fine
  • 20:29are living their lives and it
  • 20:33tends to be a little
  • 20:35bit more problematic in younger
  • 20:36women than older women. So
  • 20:39you put
  • 20:40a thirty five year old
  • 20:41woman on Tamoxifen,
  • 20:43and at least in
  • 20:44my practice,
  • 20:45I tend to expect a
  • 20:47few more symptoms than I
  • 20:49would in somebody twenty years
  • 20:50older.
  • 20:51And I think it's
  • 20:53important to remember
  • 20:54that estrogen and progesterone
  • 20:57really do serve a purpose
  • 20:58in women.
  • 21:00And
  • 21:01messing around,
  • 21:03manipulating
  • 21:04hormones,
  • 21:06can cause problems and
  • 21:08and big ones that really
  • 21:10impact somebody's
  • 21:13day to day.
  • 21:14Hot flashes, if they happen
  • 21:16only once every few days,
  • 21:17probably not that big a
  • 21:18deal. But hot flashes that
  • 21:20are happening ten times a
  • 21:21night and preventing somebody from
  • 21:22sleeping and
  • 21:24leads to chronic fatigue and
  • 21:26mental fogginess, that's
  • 21:28really a big deal.
  • 21:30And so a lot of
  • 21:31the conversations that we have
  • 21:32in clinic
  • 21:34relate to that absolute
  • 21:36benefit
  • 21:37conversation
  • 21:38and the relative
  • 21:39benefit. So, yes, while tamoxifen
  • 21:41reduces the chances of a
  • 21:42cancer
  • 21:43recurring by fifty percent,
  • 21:46if someone's risk of a
  • 21:47cancer recurring is really small,
  • 21:50the benefit of tamoxifen is
  • 21:52also really small.
  • 21:54And for many women,
  • 21:55it may not be enough to
  • 22:00warrant staying on a medication
  • 22:01that makes them miserable.
  • 22:03Absolutely, and
  • 22:05there are alternatives to
  • 22:07tamoxifen as well.
  • 22:10So there's another class of
  • 22:12medicines called aromatase inhibitors.
  • 22:16Going back to my baseball
  • 22:17analogy,
  • 22:18aromatase inhibitors basically remove all
  • 22:20the baseballs. So you can't
  • 22:21catch a baseball
  • 22:23if there are no baseballs
  • 22:24to be caught. It
  • 22:26basically prevents
  • 22:28a woman from being able
  • 22:30to make estrogen.
  • 22:32It has to be given
  • 22:34in conjunction with other medicines
  • 22:36in very young women who
  • 22:38have ovarian function.
  • 22:41So that gets a little
  • 22:42bit more complicated.
  • 22:44But
  • 22:45these medicines reduce estrogen levels
  • 22:48from
  • 22:49a low level
  • 22:50to a very low level,
  • 22:52almost
  • 22:53undetectable level.
  • 22:56I was just gonna jump
  • 22:57in and say, you use
  • 22:58the baseball,
  • 23:00metaphor. I typically
  • 23:02describe
  • 23:03giving one of these
  • 23:05medicines
  • 23:06along with suppressing ovarian function,
  • 23:09which is what we have
  • 23:09to do when we do
  • 23:10it in a young woman,
  • 23:13as
  • 23:14entering menopause by jumping off
  • 23:16the high dive
  • 23:18instead of instead of wading
  • 23:19into the water.
  • 23:21It's not
  • 23:22a slow process. It's not
  • 23:24a natural process.
  • 23:25That's not what normally happens.
  • 23:29So the side effects of
  • 23:30those aromatase inhibitors
  • 23:32is just kind of like
  • 23:33menopause only more so.
  • 23:36And you think about
  • 23:38putting somebody
  • 23:40who has normal
  • 23:42ovaries, whose
  • 23:44normal ovarian function has
  • 23:47fluctuating levels of hormones
  • 23:49and has normal menstrual cycles
  • 23:51into menopause
  • 23:52is like
  • 23:54jumping in from the high
  • 23:55dive or going from sixty
  • 23:56miles an hour down to
  • 23:58zero,
  • 23:58it can be very jarring.
  • 24:00And what's funny is for
  • 24:01some people,
  • 24:02it's associated with almost no
  • 24:04symptoms.
  • 24:05And for other people
  • 24:07and I don't know
  • 24:08how to predict this, it's
  • 24:10just miserable.
  • 24:11I hope someday we
  • 24:14get to a point where
  • 24:15we're able to
  • 24:17predict how someone is going
  • 24:19to feel. And I don't
  • 24:20know what we'll use to
  • 24:21predict that. Maybe
  • 24:23there will be some
  • 24:25smart
  • 24:26genome technology. Maybe there will
  • 24:28be some prior menstrual history
  • 24:30piece to all of this,
  • 24:31but that's a
  • 24:33hard conversation to have. The
  • 24:35only way to know if
  • 24:35someone's gonna have side effects
  • 24:37is for them to try
  • 24:38it and see what happens.
  • 24:40And I think the
  • 24:41point you made that, you
  • 24:42know, we give these medicines
  • 24:44for a long time. So
  • 24:45these are symptoms that may
  • 24:47not be life threatening, but
  • 24:48they're pretty annoying. And so
  • 24:51putting up with them for
  • 24:53a number of years for
  • 24:54many women is often
  • 24:56challenging
  • 24:57to say the least.
  • 24:58Now,
  • 25:00on the other hand, these
  • 25:02hormonal,
  • 25:03antihormonal,
  • 25:04endocrine therapies, they're called all
  • 25:06of these different things,
  • 25:08sometimes,
  • 25:09are far more beneficial than
  • 25:11treatments like chemotherapy,
  • 25:13and it all depends on
  • 25:14the tumor.
  • 25:16That's exactly right.
  • 25:19Breast cancer isn't one disease.
  • 25:21And it's this big spectrum
  • 25:24of diseases,
  • 25:26each of which is treated
  • 25:28a little bit differently
  • 25:29or even a lot bit
  • 25:30differently.
  • 25:32We make decisions based on
  • 25:34a few things that the
  • 25:34pathologist tells us when they
  • 25:36look at the cancer under
  • 25:37the microscope. We look at
  • 25:38the grade of the cancer.
  • 25:40That's a measure of how
  • 25:41aggressive the cells look under
  • 25:42the microscope.
  • 25:43We look at the
  • 25:45percent of cells that have
  • 25:46the estrogen receptor or the
  • 25:47progesterone receptor.
  • 25:49And then there's this may
  • 25:50be where you were going
  • 25:51with this question, but
  • 25:53there's this test called the
  • 25:55Oncotype test,
  • 25:57which is
  • 25:59a test of a patient's
  • 26:01individual cancer.
  • 26:03It looks at twenty one
  • 26:05cancer
  • 26:06related genes,
  • 26:08and it looks at the
  • 26:08levels of those genes and
  • 26:10what levels they're expressed at.
  • 26:12And based on the
  • 26:13levels of those genes, it
  • 26:14goes into this very complicated
  • 26:17algorithm,
  • 26:18that some very smart people
  • 26:19developed many years ago. And
  • 26:21then it spits
  • 26:23out
  • 26:24a number. And so you
  • 26:26often,
  • 26:27in breast cancer circles, you
  • 26:29may have people saying, well,
  • 26:30what was your number? What
  • 26:31was your number?
  • 26:32The recurrent score is a
  • 26:33number, and it's on a
  • 26:34scale of zero to a
  • 26:36hundred.
  • 26:37Most breast cancers
  • 26:39have low numbers under fifty.
  • 26:42And then depending on that
  • 26:44recurrent score,
  • 26:45we can help
  • 26:47decide whether somebody
  • 26:49needs chemotherapy or benefits from
  • 26:51chemotherapy or really doesn't benefit
  • 26:53from chemotherapy.
  • 26:54And a
  • 26:55couple of major studies
  • 26:57that have been published in
  • 26:58the last
  • 26:59five, seven years,
  • 27:02have shown that
  • 27:04oncotype recurrence scores of
  • 27:06twenty five or lower
  • 27:08are not associated
  • 27:10with much benefit to
  • 27:12chemotherapy. There are some caveats
  • 27:13to that. There are
  • 27:15some questions
  • 27:16in young women in particular.
  • 27:18But in most women,
  • 27:20low oncotypes,
  • 27:23then don't benefit
  • 27:24much from chemotherapy, if at
  • 27:26all.
  • 27:27And it's so different from
  • 27:29the way it was thirty
  • 27:30years ago where, in fact,
  • 27:32it was one size fits all.
  • 27:34Right. And, you know,
  • 27:35we didn't differentiate between different
  • 27:38cancers. We gave everybody
  • 27:40essentially the same treatment,
  • 27:42and
  • 27:43it's
  • 27:44come
  • 27:45so very far. And at
  • 27:48the same time,
  • 27:50not only are we able
  • 27:51to
  • 27:53allow people to live with
  • 27:54fewer side effects,
  • 27:56but
  • 27:57we're certainly doing no worse
  • 27:59in terms of overall outcomes.
  • 28:00And
  • 28:01I think just as a
  • 28:03sort of
  • 28:04give people a general sense,
  • 28:06what proportion of women who
  • 28:08have breast cancer go on
  • 28:09and live a normal
  • 28:11life afterwards?
  • 28:13A large proportion,
  • 28:15eighty, eighty five percent go
  • 28:17on and never
  • 28:18hear back from this cancer,
  • 28:20from their original cancer.
  • 28:21And even women
  • 28:23who do hear back from
  • 28:24the cancer,
  • 28:26whose cancer comes back
  • 28:27whether in the breast or
  • 28:29somewhere else, go on to
  • 28:30live
  • 28:31many, many years because of
  • 28:33the advances in treatment.
  • 28:35Doctor Sarah Schellhorn is an
  • 28:36associate professor of medicine and
  • 28:38medical oncology at the Yale
  • 28:39School of Medicine.
  • 28:41If you have questions, the
  • 28:42address is canceranswersyale
  • 28:44dot edu, and past editions
  • 28:46of the program are available
  • 28:48in audio and written form
  • 28:49at yale cancer center dot
  • 28:51org.
  • 28:51We hope you'll join us
  • 28:52next time to learn more
  • 28:53about the fight against cancer.
  • 28:55Funding for Yale Cancer Answers
  • 28:57is provided by Smilow Cancer
  • 28:59Hospital.