Tag Archive for: hormonal therapies

Establishing Treatment Goals: What Are Options for Advanced Prostate Cancer Therapy?

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Establishing Treatment Goals: What Are Options for Advanced Prostate Cancer Therapy? from Patient Empowerment Network on Vimeo.

Prostate cancer treatment goals can vary by patient – thus why it’s essential to have different treatment options. Expert Dr. Xin Gao explains the importance of establishing treatment goals and shares an overview of available options. 

Dr. Xin Gao is a Medical Oncologist at Massachusetts General Hospital. Learn more about this expert Dr. Gao.

See More From INSIST! Prostate Cancer

Related Resources

What Key Factors Impact Prostate Cancer Treatment Decisions?

What Key Factors Impact Prostate Cancer Treatment Decisions?

 How Does Prostate Cancer Progress: Understanding the Stages of Prostate Cancer

How Does Prostate Cancer Progress? Understanding the Stages of Prostate Cancer

 How Is Advanced Prostate Cancer Treatment Personalized

How Is Advanced Prostate Cancer Treatment Personalized?

Transcript:

Katherine:

Dr. Gao, now that we know what goes into understanding a patient’s disease, I’d like to talk about treatment, starting with treatment goals. How do goals vary by patient, if they vary at all? 

Dr. Gao:

Sure, yeah. I do think they vary, and I think it is important to be clear about what the realistic goals of treatment might be so that the patient can make an informed decision on how the prostate cancer should be treated or managed. 

Some prostate cancers are highly curable, although there isn’t anything that’s 100 percent, right? And others are curable, but we acknowledge that there may still be a significant risk of relapse despite treatment. And maybe that rough percentage, the probability of cure and sort of the potential downsides or side effects of treatment, that’s something that the patient has to weigh in terms of whether they want to proceed with that treatment or not.   

And then, there are cancers, especially with advanced prostate cancers, that are unfortunately not curable, but yet treatments have the ability to significantly prolong somebody’s life, to slow the cancer progression down or even to shrink it, and to improve cancer-associated symptoms and other sources of distress that we talked about earlier.  

And so, with each patient, I think it is important to talk about these treatment goals because it may not be readily clear, is this a curable cancer or not? And it might not be clear how much benefit they might expect with treatment or are we talking about a marginal benefit? And then that way, you know, they can think about it, talk about it with their family, and kind of factor into their overall benefit risk calculation about whether to do something or not. 

Katherine:

Would you provide an overview of current treatment options for advanced disease? 

Dr. Gao:

Sure. So, it’s a big, very open-ended question, I think.  

So, I think you can divide it up into sort of the major treatment modalities, so things like radiation or radiation types of therapies, chemotherapy, hormonal therapies which are the mainstay of prostate cancer treatments, targeted therapies, and immunotherapies.  

Starting with hormonal therapies which are the backbone of prostate cancer treatments, for advanced prostate cancer, androgen deprivation therapy or ADT is often given indefinitely as the typical standard of care treatment and there are various forms of ADT, most commonly in the form of long-lasting injectable medications – leuprolide (Eligard/Lupron Depot), goserelin (Zoladex), sometimes degarelix (Firmagaon)  is used. And then more recently, there was an FDA approval a couple years ago of an oral pill called relugolix (Orgovyx), which is also a form of ADT or androgen deprivation therapy.  

These medications block the body’s ability to make testosterone which is important for prostate cancer survival and spread. In addition, abiraterone is an oral medication that is also considered a hormonal therapy. It blocks the production on androgens or male sex hormones outside of the testes. That includes the adrenal glands and some other tissues such as prostate cancer itself. And abiraterone (Zytiga) is commonly used in advanced prostate cancer management, in addition to androgen deprivation therapy whereas ADT blocks the testes from making testosterone and androgens, abiraterone blocks the production of androgens outside of the testes.  

And then finally, oral anti-androgen medications that block the prostate cancers from being able to detect androgens or male hormones and to block the androgen receptors on prostate cancers from sending cellular signals for growth and survival are also very commonly used.  

There are older anti-androgen medications like bicalutamide (Casodex), flutamide (Eulexin), lutamide, and there are newer ones, stronger versions, called enzalutamide (Xtandi), apalutamide (Erleada), and darolutamide (Nubeqa). For most patients who present with advanced prostate cancer, I think this is much easier, ADT along with either abiraterone or one of the newer, stronger anti-androgens, is the standard of care for most advanced prostate cancer patients with metastatic disease.  

And then, sometimes for patients with higher volume or more aggressive cancers even in the group with metastatic disease, we even add on another treatment, usually chemotherapy, something called docetaxel for what we call triple therapy. And then, maybe that’s a segue to chemotherapy, so docetaxel chemotherapy is a common chemotherapy used for prostate cancer, certainly advanced prostate cancers. Cabazitaxel (Jevtana) is also a common chemotherapy in this situation. These two are related drugs in a family of drugs called taxane chemotherapies and basically they kind of block the trafficking of important components within cancer cells and cause the cancer cell death.  

Docetaxel (Taxotere) is the more commonly used one. It’s typically used earlier, before cabazitaxel. And like I said earlier, for certain patients with what we call high volume metastatic prostate cancer, it’s often used in combination with hormonal therapies early on, what we call upfront therapy for six cycles. If a patient doesn’t receive docetaxel up front, docetaxel is commonly used after progression, after the cancer has progressed on ADT and one of the oral hormone medications.  

Cabazitaxel is more commonly used after a patient has previously received or progressed on docetaxel. Both drugs have been evaluated in randomized Phase III clinical trials and have shown to provide efficacy for patients with advanced prostate cancers.  

In addition to these taxane chemotherapies, platinum chemotherapy, such as carboplatin or cisplatin, are sometimes used for advanced prostate cancers as well, especially for certain neuroendocrine or small cell prostate cancers. These are rarer cancers, but they tend to respond better to platinum-based chemotherapies.   

Or for certain what we call aggressive variant prostate cancers, these platinum-based chemotherapies are also used in combination with either one of the taxanes or with another chemotherapy drug called etoposide. In terms of other treatment modalities, I think recently what we call radiotherapeutics or radioligand therapies have gotten a lot of press with the approval of a new medication called lutetium PSMA or 177 lutetium PSMA 617 (Pluvicto). 

The brand name for that in the U.S. is Pluvicto and what this is is a drug that’s a small molecule that binds to PSMA, which is a protein highly expressed in close to 90% of prostate cancer, advanced prostate cancers. And the small molecule will home to the cancer and it’s linked to radioactive lutetium and the lutetium will decay in that area and lead to cancer cell death.  

So, Pluvicto or lutetium was FDA approved in spring of 2022 based on randomized Phase III trials that show significant efficacy for patients with metastatic castration-resistant prostate cancer who have previously received a second-generation androgen receptor pathway inhibitor, such as abiraterone and enzalutamide, as well as a taxane chemotherapy, like docetaxel or cabazitaxel.  

The medication is given intravenously, once every six weeks, for up to six doses, and there are ongoing clinical trials, actually, that are trying to evaluate this medication in earlier settings where patients haven’t gotten prior chemotherapy before. There was a press release from about half a year ago stating that they’re seeing some early encouraging signs of efficacy with this drug, even in patients who had never received chemotherapy before, so it may be a medication that is going to be used more and more so in more patients even earlier in their course of disease. they’ve shown pretty solid activity for those kinds of cancers. 

What Are Treatment Options for Endometrial Cancer?

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What Are Treatment Options for Endometrial Cancer? from Patient Empowerment Network on Vimeo. 

What endometrial cancer treatment options are currently available? Endometrial cancer expert Dr. Emily Ko shares an overview of options, including chemotherapy, surgery, radiation, targeted therapies, combination therapies, hormonal therapies, and discusses considerations for patients who are trying to preserve their fertility.

Dr. Emily Ko is a gynecologic oncologist and Associate Professor of Obstetrics and Gynecology at the University of Pennsylvania. Learn more about Dr. Ko.
See More from Evolve Endometrial Cancer

 

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Monitoring for an Endometrial Cancer Recurrence

Transcript:

Katherine:

I’d like to talk about the treatments that are currently available. You mentioned chemotherapy, but what else is available for people? 

Dr. Ko:

Absolutely. So, treatment for endometrial cancer is usually some combination of surgery, and then it may be followed by possibly chemotherapy, as well as radiation, and sometimes, it may be a combination of all three treatments, or sometimes, it’s a combination of one or two of those, depending on the exact stage, depending on the exact cell type, and some of the other factors. 

Katherine:

Are hormonal therapies used as well, and targeted therapies? 

Dr. Ko:

Yes. 

Katherine:

I know they are in other cancers. 

Dr. Ko:

Yes. And so, I think the question is where do those come into play? So, I would say the usual algorithm most commonly would be that surgery is done first, as the most common first step, and then, based on the information obtained from surgery and the pathology report that comes from that, then there’s usually some type of a recommendation about should there be a second stepped treatment, and that frequently can be chemotherapy/radiation.  

Now, the areas where targeted therapy – for example, immunotherapy – where does that come in? So, that now has come into the – I would call it the second stage. We’re combining it with the classic chemotherapy drugs – Taxol-carboplatin, for example. That’s one example where it could come into play. Another example could come into play where a patient had gone through classic Taxol/paclitaxel and carboplatin, then had cancer come back, and so, that could be another instance where that pembrolizumab or pembro with lenvatinib (Lenvima) combination can be used in the setting of recurrence. 

Now, we could also say, hey, if your cancer type has those hormonal receptors present or is some type of what we call endometrioid histology, and we think that hormonal therapy may be more effective in that case, then that could also be used in a setting where the cancer has kind of grown again, the cancer has grown back, or actually, there are certain situations where patients, for example, may not undergo a hysterectomy. 

And, there are unique cases and those situations where patients are still trying to preserve their fertility, and therefore not wanting to undergo a hysterectomy, or they’re unable to undergo surgery safely. And so, in some unique situations, we may also use hormonal therapy as the mechanism to treat their cancer, and whether that is by way of a pill, whether that is by way of a progesterone intrauterine device, IUD, that is placed into the uterus, we also have situations where we tailor the therapy to the condition of the patient. 

Katherine:

When treating more advanced endometrial cancer disease in general, are the treatment options different than if you were treating somebody who had stage I or stage II, for instance? 

Dr. Ko:

Sure, great question. So, for some patients with, say, stage I, surgery alone is enough. 

For some other patients, subcategories of stage I, where we call them more high/intermediate-risk patients, they’re stage I, but there are a few features about their pathology that might make them slightly higher risk for recurrence – in those cases, we might consider a little bit of radiation after surgery, what we call adjuvant radiation or what we call radiation vaginal brachytherapy. Just three short treatments of a little bit of radiation to the top of the vagina has been shown to possibly decrease chance of recurrence in that area with very minimal side effects. 

So, that would be more commonly in line with stage I. There are some subtypes that can still be what we call high-risk, even in stage I/stage II uterine serous carcinoma, uterine carcinosarcoma. In those cases, we might also recommend chemotherapy along with some vaginal brachytherapy following their hysterectomy, so that’s the early stage. 

And then, with the advanced stage, yes. So, frequently, it’d be surgery first to secure the diagnosis, followed by some type of – it might be primarily chemotherapy, or it could be combination chemotherapy with radiation. And over time, I would say our paradigm for what we use for chemotherapy and radiation has changed a little bit.  

If you go back a couple decades, I think radiation was used a lot – whole pelvic radiation, even just without any chemotherapy. And then, we then had more data from research clinical trials, GOG-258 or PORTEC-3, that then had given us evidence that perhaps doing chemotherapy with some combination of radiation is going to be beneficial, or even moving towards primarily radiation could be a very good option in terms of long-term benefit/long-term survival. 

And, of course, that brings us to the present day, those two trials that I mentioned from ASCO, the GY018 and the RUBY, now bringing in the immunotherapy component to the chemotherapy, so there has definitely been an evolution to managing advanced stage. 

Strategies for Treating Advanced Prostate Cancer Symptoms

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Strategies for Treating Advanced Prostate Cancer Symptoms from Patient Empowerment Network on Vimeo.

What are strategies for treating advanced prostate cancer symptoms? Expert Dr. Tanya Dorff reviews approaches to protect bones and options for managing sexual dysfunction symptoms.

Dr. Tanya Dorff is Associate Professor in the Department of Medical Oncology & Therapeutics Research at City of Hope. Learn more about Dr. Dorff.
 

Related Resources:

What Is Advanced Prostate Cancer?

 Understanding Advanced Prostate Cancer Treatment Approaches

 Managing the Side Effects of Advanced Prostate Cancer Treatment

Transcript:

Katherine:

That’s really promising. What about treating symptoms of the disease itself, like bone pain?  

Dr. Dorff:

Bone metastases are the predominant pattern of spread, and so, what really drives the story for a lot of our prostate cancer patients during their journey with cancer has to do with bone complications – not always pain, but unfortunately, there can be pain pretty frequently. 

So, we start by trying to protect the bones early on. We know that when we use our hormonal therapies, osteoporosis can develop, so we want to avoid that. I’ve had patients where their cancer was well-controlled, but they had an osteoporosis fracture that they were miserable from, so it starts at the beginning, at protecting the bones, checking a bone density scan and/or using a bone-supportive agent like zoledronic acid (Zometa) or denosumab (Xgeva), and then, in the metastatic setting, as the disease progresses, we intensify that use of bone-supportive agents. 

We sometimes end up using radiation therapy, which is primarily external-beam traditional kind of radiation, but there is also the radiopharmaceutical Radium-223 (Xofigo), which delivers the radiation kind of more internally through the bloodstream to areas of the bone that are active from the prostate cancer, and sometimes we end up needing something even like surgery, but the bones are a major part of the story.  

Katherine:

Yeah. What about sexual dysfunction? Are there approaches that can help?  

Dr. Dorff:

So, this is generally an area that’s managed more by urology. There definitely are things that urologists do to help patients who have lost sexual function due to prostate cancer treatments. They can involve medicines, they can involve slightly more invasive things like a suppository or an intracavernosal injection. There are also more mechanical ways, like a pump device or a penile implant, but generally, anything beyond the first level, which is Viagra, will be handled more by a urologist than a medical oncologist. 

Understanding Advanced Prostate Cancer Treatment Approaches

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Understanding Advanced Prostate Cancer Treatment Approaches from Patient Empowerment Network on Vimeo.

What approaches are available to treat advanced prostate cancer? Dr. Rana McKay discusses advanced prostate cancer treatment goals and reviews current options for patients.

Dr. Rana McKay is a medical oncologist at UC San Diego Health and an associate professor in the Department of Medicine at the UC San Diego School of Medicine. Learn more about Dr. McKay, here.
 
 

Katherine Banwell:

We’re going to talk about treatment approaches. But first, how would you define treatment goals? 

Dr. Rana McKay:

So, you know when I look at defining treatment goals it’s focusing on what do we want to achieve from the standpoint of the cancer? Meaning, you know, what are objectives that are associated with patients living longer?  

And then what are objectives and strategies that we can set-up to make sure that patients are living better? So, I think the treatments are basically set up to basically help you achieve those two goals. What can we do to help you live longer and feel better? 

Katherine Banwell:

Yeah. Well, let’s walk through the types of treatments that are used today to treat advanced prostate cancer. What are the treatment causes and who are they appropriate for? Let’s start with surgery, for instance. 

Dr. Rana McKay:

So, surgery is something that’s utilized early on when people are diagnosed with cancer. It tends to be utilized when the cancer has not necessarily spread to other parts of the body but is still localized within the prostate itself, or maybe there’s just some little bit of breakthrough in the capsule. Sometimes it can be used in people who have involvement of the prostate cancer in the lymph nodes. But it’s generally not utilized in people who have cancer that’s spread to other parts of the body. 

Katherine Banwell:

Mm-hmm. What about other treatment classes? What are they? 

 Dr. Rana McKay:

So, radiation can also be utilized. Radiation is a treatment modality that can be used for people with localized disease, and also it can be utilized for people with advanced disease to treat the primary tumor. 

Additionally radiation therapy can be used to help treat symptoms if there’s a bone lesion causing pain or other areas that are causing discomfort. Sometimes radiation to those areas can mitigate pain. When I think about the treatment classes for prostate cancer, they generally break down into several categories. The first, most predominant category is the hormonal therapy category. Hormonal therapies are really the backbone of treatment for men with prostate cancer, and they include the more traditional hormonal therapies that really work to just drop testosterone. So, just LRH – L – LRHA agonists and antagonists and also, they include newer hormonal therapies in the form of pills that really target strategies at also affecting testosterone function and testosterone production. Another class is also the chemotherapy agents. There are two FDA-approved chemotherapies for prostate cancer that are life-prolonging, and there’s a certain role for chemotherapy for people with advanced disease. 

There’s also immunotherapy that can be utilized. There’s a vaccine therapy that’s actually one of the first FDA vaccines for any solid tumor that’s proving in prostate cancer that can be utilized. There’s also radio pharmaceuticals.  

So, these are specific agents that deliver bits of radiation to specific areas. Whether it be radium 223, which targets the bone or the newest radio pharmaceutical, which was approved called Lutetium PSMA that basically delivers beta-radiation to little – sites of PSMA expressing cancer cells and the last category that I would highlight is the category of targeted therapy. There are two targeted therapies for prostate cancer for patients who have like genomic alterations. Those include the drugs olaparib and rucaparib. So, as you can see there’s a wide spectrum of drugs that can be utilized to really keep this disease at bay.