Tag Archive for: radiopharmaceuticals

Advanced Prostate Cancer Treatments on the Horizon

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Advanced Prostate Cancer Treatments on the Horizon from Patient Empowerment Network on Vimeo.

 What advanced prostate cancer treatments are on the horizon? Expert Dr. Ronald Chen discusses emerging treatments that are under study, the advantages that the treatments might offer, and how patients can potentially gain access to the therapies.

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START HERE | Collaborative Prostate Cancer Care Resource Guide 

Transcript:

Lisa Hatfield:

Are there any promising treatments on the horizon that you are particularly excited about for advanced prostate cancer? And what types of questions do you recommend patients and their care partners ask of their providers?

Dr. Ronald Chen:

I want to answer this question from the perspective of a…as a radiation oncologist. I am often involved in a lot of research and clinical trials related to how we can potentially better use the tool of radiation for patients with prostate cancer and advanced prostate cancer. And there’s actually quite a bit of exciting development in radiation that I think I’m really looking forward to seeing the results of those types of research. One area of, I think, promising treatment is something called radiopharmaceutical therapy.

So oftentimes, we think of radiation as a patient…there’s a machine that delivers a targeted beam of radiation to a particular tumor. And that’s what we usually think about. But actually, there’s a new wave of radiation and how we deliver it called radiopharmaceuticals. And radiopharmaceuticals is almost like getting chemotherapy. It’s something that’s infused into the bloodstream, almost like chemotherapy, but the way this treatment work called radiopharmaceuticals is that you’re actually infusing molecules that will actually tag on to tumor cells in the body, and then as it tags onto tumor cells in the body, deliver radiation to that tumor cell.

And they’re actually…so actually, it’s kind of like chemotherapy delivering actually radiation instead of a drug. And there are actually already are several of these radiopharmaceutical agents that have been proven to be effective. And two of these have already been FDA approved that are now in use for prostate cancer. And we know they work and they extend survival. And so, I think that’s very exciting.

And one of them is called lutetium Lu 177 vipivotide tetraxetan (Pluvicto). You’re infusing a molecule that specifically tags on to prostate cancer cells in the body and delivers a little bit of radiation to that cell. And that extends survival for patients. It’s actually a very well-tolerated treatment as well as actually now commonly in use FDA-approved. And I think that now that we have a couple of these FDA-approved, they were proven to work, I really do think that this field of radiopharmaceutical treatment will continue to expand. There’ll be more and more of these in the future. There’s more in clinical trials, and I think there’ll be more and more available options in the future. And I think it’s really going to be a great way to potentially use radiation to help patients with advanced prostate cancer and other cancers in the future.

Another thing that I’m really excited about is, again, I think the balance between extending a patient’s life expectancy and balancing the quality of life impact. We know that for patients with advanced prostate cancer, a common way to treat this disease is with hormone therapy. And oftentimes, people are on hormone therapy for years and years and maybe lifelong. And we also know that hormone therapy in patients with prostate cancer can also have really quite a bit of side effects. It can make people fatigued, weight gain, it may have cardiovascular disease impact. And so hormone therapy, even though it’s effective for prostate cancer, really has a big quality of life impact on patients.

So one of the current years of research and in clinical trials is, can we, instead of having patients with metastatic prostate cancer, instead of having them on hormone therapy for life, could we potentially use radiation selectively in the spots of metastasis? And if we’re able to use radiation to treat particular spots of metastasis and that’s controlled, can we let the patient then have a break from hormone therapy, which I think would really have an important quality of life improvement.

And so selectively using radiation to treat a few spots, allowing patients a break from hormone therapy is another area of research. There’s actually a couple of clinical trials already done on this. And what it’s shown so far is that if patients have one to three to five, a few spots of metastasis, using radiation can actually give patients a break from hormone therapy for two, three or four years for many patients. And that can really have a major impact on improving quality of life without compromising their survival outcomes. So I think I’m really excited about those kinds of areas of research.

One more treatment option like radiopharmaceuticals, two treatments that not compromise the patient’s survival, but improve quality of life. I’m excited about those directions. Oftentimes, the new developments and new treatments, the promising treatments are first available through clinical trials, and only through participating in clinical trials do you have access to that before it becomes FDA-approved. And oftentimes, that could be a really good option to consider. So that’s why I think it’s really important to ask that for every patient.

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.