Tag Archive for: PSMA

What Key Factors Impact Prostate Cancer Treatment Decisions?

What Key Factors Impact Prostate Cancer Treatment Decisions? from Patient Empowerment Network on Vimeo.

Prostate cancer expert Dr. Channing Paller reviews key variables that impact prostate cancer treatment decisions and explains immunotherapy, PARP inhibitors, and personalized medicine.

Channing Paller, MD is the Director of Prostate Cancer Clinical Research at Johns Hopkins Medicine. Learn more about this Dr. Paller.

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Transcript:

Katherine:

What are other options that are available now, for patients? 

Dr. Paller:

For curative intent, the main two treatment options are surgery, radiation. Many people for very localized disease are trying other therapies, such as cryotherapy, and more focal therapies. But really, for curative, the standard is surgery or radiation. And as it gets more advanced, circling back to advanced prostate cancer, we are learning that combination therapy is better. So, adding pills like abiraterone, adding systemic therapies, help patients do better.  

So, there’s a big, long list of therapies upfront that we use for metastatic hormone-sensitive prostate cancer. There’s abiraterone, there is apalutamide (Erleada), there’s enzalutamide, and now, darolutamide (Nubeqa). 

And in fact, in fit patients that can tolerate chemotherapy for metastatic high-volume prostate cancer patients, we always recommend triple therapy, either with abiraterone, docetaxel, and ADT, or with darolutamide, docetaxel, and ADT, and these patients really seem to do better for longer. The other thing I would add is the PEACE-1 trial, which looked at abiraterone and docetaxel, found that patients would do best by adding growth factor support. And so, that is recommended. 

The other thing I want to point out to patients is, I know we’re all eager to get started when we find out we have a diagnosis of metastatic prostate cancer, but sometimes, these therapies are quite tough on the system when you have a lot of cancer in your body, and my recommendation to everybody is, one thing at a time. 

So, start the hormone therapy and wait at least 30 days, and in fact, in the PEACE-1 trial, they waited 45 days, right? That allows the testosterone levels to fall, it allows you to adjust to the side effects of hormone deprivation therapy, and it allows your body to be ready for the next line of therapy. And you can add the ADT to second line, such as abiraterone or daro during that time, but not adding the chemo all at once, that really makes a difference. 

I find, unfortunately, when patients and their providers don’t follow those strict criteria, as they did in the trial, meaning they start chemo and abiraterone and ADT on day one, the levels of chemotherapy get higher in the bloodstream because testosterone regulates that, and we’ve published on that before. And they end up with terrible side effects from the chemotherapy, such as neutropenic fever, which means you end up in the hospital with a bloodstream infection and a fever, and more neuropathy, meaning numbness and tingling in your hands and feet. 

And so, I really caution people to spread those therapies out over the first 90 days, and you’ll do better in terms of side effects, and just as well in terms of overall survival. 

Katherine:

Where does hormonal therapy fit into the treatment options, and have there been any advances in hormonal therapy?  

Dr. Paller:

Yes. So, hormonal therapy is the mainstay of how we take care of prostate cancer patients, whether we do this with surgical castration, which is not done very often anymore, or we do it with an LHRH agonist, or we do it with an LHRH antagonist. So, that means that we can do it with medicines that block the signaling, but that tells your body to produce testosterone in various ways. What’s really neat is we’ve made advances, that there are now oral options for some of these therapies. 

In particular, there’s a new therapy called Orgovyx, or relugolix, that is an oral LHRH antagonist that locks testosterone and allows us to stop prostate cancer growth. In addition, there are a variety of LHRH agonists that can be given as subcutaneous shots. 

Prostate Cancer Treatment: What Is Precision Oncology?

Prostate Cancer Treatment: What Is Precision Oncology? from Patient Empowerment Network on Vimeo.

How is precision oncology used in prostate cancer? Dr. David Wise defines precision oncology and explains how it is used in conjunction with prostate cancer testing for patient care.

Dr. David Wise is Director of Genitourinary Medical Oncology at the Laura and Isaac Perlmutter Cancer Center at NYU Langone Health. Learn more about Dr. Wise.

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Transcript:

Dr. David Wise:

Absolutely. So, precision oncology is really a term that describes being able to tailor treatment to a patient’s cancer to the information that we have from that specific individual. So, it’s really tailored medicine. And it’s precise because, typically, that treatment is leveraging or exploiting a specific vulnerability or feature that we’re able to discern by a specialized testing of that patient’s cancer, okay?  

And so, everything that I’ve been discussing, biomarker testing that lends itself directly to treatment is largely overlapping and very much an example of precision oncology. So, using genetic test results to guide treatment from that patient, that’s tailored to that patient. So, that is precision oncology.  

Using that patient’s PSMA profile to determine the benefit of lutetium, that is, in my view, precision oncology. There are other examples of this in multiple different spheres and using multiple different treatment types, but that’s the general concept. I think the other example of precision oncology in general and specifically for prostate cancer are targeting NTRK mutations. So, NTRK I, II, and III, those are genes that can get mutated in any cancer type.   

And just like the example of immunotherapy with microsatellite instability, the same holds true. So, any cancer with an NTRK mutation, there is an FDA approval to use NTRK inhibitory oral medications to treat that patient. Similarly to immunotherapy and microsatellite instability, we wish those mutations were more common because the treatment is very well-tolerated and is incredibly effective.  

But still, just because it’s not common doesn’t mean we shouldn’t look for it because of how impactful these treatments can be. 

Essential Testing Following a Prostate Cancer Diagnosis

Essential Testing Following a Prostate Cancer Diagnosis from Patient Empowerment Network on Vimeo.

What essential tests do prostate cancer patients need following a diagnosis? Dr. David Wise shares an overview of imaging, scans, and targeted testing to help guide an optimal care and treatment plan for each patient.

Dr. David Wise is Director of Genitourinary Medical Oncology at the Laura and Isaac Perlmutter Cancer Center at NYU Langone Health. Learn more about Dr. Wise.

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Transcript:

Dr. David Wise:

Sure. So, that’s a great question. The testing for prostate cancer really has advanced over the last decade. So, it’s very much standard, of course, for patients to have a biopsy to confirm evidence of prostate cancer. That biopsy will assess for the Gleason score, which gives us information about how abnormal those cells look under the microscope.  

It remains the most important feature for understanding the risk of the cancer and how intensive the treatment needs to be to treat that cancer. Of course, the PSA at the time of diagnosis is also useful for that assessment of risk. And the MRI is the third key feature that we look at, the MRI of the prostate, that is, which is often done before biopsy and often guides the biopsy for the urologists to make sure that they’re sampling the most concerning nodule within the prostate. And that MRI gives us information about the extent of the cancer, whether there had been any spread of the cancer, and the overall size of the prostate cancer mass. Now, over the past few years, there’s been some changes.  

So, patients with high risk or very high risk but nonmetastatic prostate cancer are often also imaged with something called PET scan, which is specific for prostate cancer looking at the levels of a protein called PSMA. And there are several brand names that will provide that imaging test through this PET imaging scan. That also gives us an even more accurate sense of the extent of the cancer, whether it has spread or not.  

And I think what’s really important is also thinking about the genetics of the cancer. And so, for patients with high-risk early-stage prostate cancer or metastatic prostate cancer and for patients with a significant family history or with an Ashkenazi Jewish ancestry, we recommend hereditary genetic testing.  

And that needs to be distinguished from testing of the tumor itself or testing of the DNA derived from the tumor, which is called somatic testing. And it is not a hereditary test, but it’s a test that actually gives us information about the genes that are mutated and promoted at the development of that cancer. And that somatic testing is important, but it’s really critical for men who have advanced prostate cancer, metastatic hormone-resistant prostate cancer, where we already have FDA-approved treatments that are tailored to the results of those gene test results.  

So, those are really the standard tests that we think about. There are some emerging tests I think that some oncologists will recommend, and some won’t. The most prominent of those is the Decipher genomic score. So, that’s a test that also uses RNA or a type of genetic information from the cancer that can be used to assess the risk.  

And in my experience, that gives sometimes complementary information and adds further, I would say, or sheds further light on the tests that we already have. And particularly for men with otherwise intermediate risk prostate cancer, sometimes, the Decipher test can give us some more clarity, but I don’t think it’s absolutely critical at this time to order that test. I think we usually get the information that we need from the test that we have. 

What Are PSA and PSMA?

What Are PSA and PSMA? from Patient Empowerment Network on Vimeo.

Prostate cancer experts use PSA and PSMA tests in different ways in diagnosis and treatment.  Dr. Heather Cheng from Seattle Cancer Care Alliance explains what PSA and PSMA measure and how the tests are used in prostate cancer care.

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Transcript:

Sherea Cary:

What’s the prostate-specific antigen?

Dr. Heather Cheng:

Yes, that’s a great question. So the prostate-specific antigen is basically a protein marker or something that is detected in the blood that is made by the prostate and can help us figure out if it’s too high, whether somebody might have prostate cancer actually. It can be useful to figure out who has prostate cancer, who doesn’t, but it’s more useful in helping when somebody has a prostate cancer diagnosis to help monitor what is going on with the disease, is the treatment working, is the treatment not working, and in that situation, it’s especially useful, it can be a little tricky, and the distinguishing between who has cancer, who doesn’t it kind of gets a B-, it’s the better than what we have, but it sort of is a little tricky.

Sherea Cary:

Okay. So…what is prostate-specific membrane antigen?

Dr. Heather Cheng:

Yeah, so prostate-specific membrane antigen is similar to prostate-specific antigen, except for that it sits on the outside of cells that are prostate-related, or prostate cancer cells, or prostate, sometimes normal prostate cells, but it’s really useful now when people have had treatment for their prostate such as surgery to remove their prostate, but maybe their PSA or that prostate-specific member and antigen test and their blood is starting to go up, and that makes us concern that there is more cancer there, and so then we can do scans to see where is the…where in the body are the cells that express prostate-specific membrane antigen. So, kind of think about it as like a tag on the outside of the cell that says, “Hey, I’m kind of prostate-related, and so we can look in the body for cells that have that marker, the other reason it’s important is because we now have treatments that are targeted, they’re kind of smart bonds where they deliver radiation to cells that have that marker…that prostate-specific membrane antigen. So, it’s exciting for two reasons, one is to find out where the cancer might be, and the second is, if we know where it is, can we deliver treatment just to those areas and not to the healthy cells.

How Can Prostate Cancer Providers Help Empower Patients?

How Can Prostate Cancer Providers Help Empower Patients? from Patient Empowerment Network on Vimeo.

 How can prostate cancer providers help empower patients? Host Dr. Nicole Rochester and Drs. Yaw Nyame, and Petros Grivas share their perspectives on how health providers can work with patients to empower them to make more informed decisions in their treatment journeys toward optimal prostate cancer care.

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Transcript:

Dr. Nicole Rochester: 

I’m going to ask Dr. Nyame to elaborate on which is these fancy tests and these new technologies and things, and what we know is that a lot of times the patient themselves, if they are not aware of these particular tests, then because of all the disparities that we’ve talked about, they may not even be offered to them. And so a question for you, Dr. Nyame, how can we empower patients so that they don’t feel limited in their care, and how do we make them aware of these treatment options and diagnostic options?  

Dr. Nyame: 

You know that’s very challenging because Dr. Grivas and I see this in our clinical practice, we have patients who are very savvy, that’ll come in and say that “I’ve heard that there’s a PSMA in San Francisco. Do you have it in Seattle? If you don’t have it in Seattle, I’m going to go to San Francisco.” And for every patient I had like that, who might be, “Hey, have you read this latest article, I can have someone who has no idea of what’s going on with their diagnosis, and so how we create opportunities to bring those patients and know very little up to somewhere close, maybe not quite to the demanding the PSMA or a fancy scan level, but sophisticated enough to feel empowered in their health decision-making as something where I think we need to do research because we know that certain tools, navigation, advocacy groups can help in that arena, but I think that we need to understand what the tools are that patients want. What’s interesting is when you query patients, which we’ve done in a study and you say, “What are the most pressing issues for you in your prostate cancer diagnosis,” whether it’s in the localized setting or in the advanced or metastatic setting, the one thing that has resonated over and over again, irrespective of race is, “I need help making decisions, I need tools that will make it, me more efficient in how I make my decisions.” And so, I think without punting the answer too much, we need to do better, and I think part of that starts with listening. I do think that providers can be trained to provide that information in a more efficient manner. We do not…we as clinicians, are built into a system where the number of patients we see really correlates with how we get paid, and there’s not a doctor that doesn’t go to work excited to educate and build relationships with patients, that’s not the case, but there is a time crunch and I feel like in situations where there is a bigger gap and knowledge and understanding, we often don’t have enough time and built into our day to have the discussion, so for me, for a lot of my patients who I feel like have a lower understanding of what’s going on with regards to their prostate cancer diagnosis, it’s really important for me to build into our visit the understanding that whatever we don’t cover can be addressed at a later time and that we don’t have to make a decision with that at particular visit. So, when I think about this, it’s sort of like your favorite barbershop or your favorite grocery store, your favorite sandwich place, the relationships matter. 

And I think when we talk about empowering patients to be advocates for themselves in their clinical visits, I think there needs to be an understanding from patients that if it doesn’t feel right, that they have options and to take their time in the decision. Prostate cancer, unlike other diseases, that Dr. Grivas and I treat doesn’t have to have the dial turn to 10 or 11 right away, and we need to make a decision because time is extremely sensitive, even in our most aggressive localized settings, which is what I treat, we have the opportunity to take weeks, if not months, to come to a decision. 

Dr. Nicole Rochester: 

Thank you, thank you so much, I appreciate that. And certainly, as a physician who’s also a health advocate, I strongly agree with what you said about if the relationship is not working, that there are options, and I know that that may not always be the case depending on where patients live, but I regularly encourage my clients to sometimes you have to look somewhere else, sometimes you have to get a second opinion or maybe even fire your doctor if the relationship is not mutually beneficial, so I appreciate you sharing that. Dr. Grivas, do you have anything to add in terms of how patients can take a proactive approach to their healthcare and how they can build this confidence we’ve been talking about and express their concerns to their medical team? 

Dr. Grivas: 

I think Dr. Nyame covered it so well. I think it’s critically important for all of us to recognize that the finding out the why is probably the key to answer those questions, why there is this distrust, why someone is not paying attention so her own health because they have to try to make ends meet and keep family fed during the daytime, and they don’t have time to think about their own health as Dr. Nyame mentioned before, at the same time, empowering the patient that they are the center of this relationship. 

Why doesn’t Dr. Nyame go to the clinic in the morning is because of patients, so our training is patient-centered and our practice is patient-centered and our research is patient-centered, so the patient should feel that right from the door, that this is a service to them. And we’re doing what we’re doing to help their life being longer, longer survival, as we call it, or better, better quality of life, and listening to the patient’s needs is important because of the time crunch that Dr. Nyame mentioned before, I think many of us, probably all of us are within situations where we don’t have enough time to listen advocate-ly, what the person have to say, that’s why I think it’s important to have opportunities for separate visits and utilize better other mechanisms, exact mechanisms, patient navigation I think it’s a critical part of our care, social workers, case managers, financial counselors, nutritionist, genetic counselors, looking at genetics in for the disposition to cancer which is much more common than we think occurrences sometimes we be higher in some certain populations. Having this service available to patients, can help a lot because they will give them knowledge, and knowledge is power by itself, so give them the center, we’re here for them. Why they’re here, it’s because we want to help them and giving them also resources, they need to get now let’s information, when they feel they have more knowledge and they feel that they have control, they can communicate back and give feedback of how we can do better and also, what are the priorities of their needs, so we can address those, what matters to the patient, and this can apply to base and care, and also is what questions we’re asking? Research should be defined by patient priority, so all of those factors should be a dialogue with a patient, I think advocacy groups can be a great liaison to help us disseminate this concept and help again, empowering the patients. I struggle believe that explaining the why and giving knowledge, the data points in a simple and lay manner, can patients think being more in control. 

 Dr. Nicole Rochester: 

I love the patient-centered focus, that is something that admittedly, we’ve gotten away from that to some degree in medicine because of the time crunches that both of you have mentioned, and I love that you said knowledge is power.