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Lung Cancer Treatment Decisions: Which Path is Best for You?

Lung Cancer Treatment Decisions: Which Path is Best for You? from Patient Empowerment Network on Vimeo.

Dr. Martin Edelman reviews key factors that help to determine a treatment course for lung cancer patients.

Dr. Martin J. Edelman is Chair of the Department of Hematology/Oncology and Deputy Director for Clinical Research at Fox Chase Cancer Center. More about this expert here.

View more from Fact or Fiction? Lung Cancer


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Transcript:

Patricia:

How are you approaching treatment decisions with your patients?

Dr. Edelman:

Well, the treatment decisions that we make – that I make are those that are in ways similar to other medical oncologists. It really depends because some of the patients may first go to a surgeon or whatever. However they come into the system, there are a few key factors in this. First is – make your decision based upon, Number 1, which kind of lung cancer. So, there are two major varieties. You have small cell and non-small cell, and they are treated – they are biologically distinct, and they are treated in distinct ways.

And then the next major consideration is the stage of the tumor, which is our way of expressing how advanced that is and deciding on both the therapy as well as conveying a prognosis and evaluating a patient for a clinical trial. And that’s based upon the size and location of the tumor; presence, absence, and location of lymph nodes; and the presence or absence and, these days, the number of metastatic areas of disease.

And then, lastly, and again depending a little bit upon the stage and interacting with all the others is what condition is the patient in? Anybody can get lung cancer, but still the median is in older individuals.

Many of these patients have compromised cardiac and pulmonary status as well as other diseases of aging, hypertension, cardiac disease, etcetera. Those people – one obviously has to tailor one’s treatments to fit those comorbidities. So, that’s sort of how the basic assessment – obviously, some patients show up with metastatic disease. We know that, but we go through a whole process for this.

The staging system that we use is complicated, and it keeps changing. We’re, gosh, up to version eight of this? I started with version three. I’m not quite sure I’ve fully mastered the current one, and the ninth edition is coming soon. And why does it keep changing? Because our knowledge of the disease keeps changing. The database keeps expanding.

We’re able to be more refined. Molecular variables have not yet fully entered into our considerations. Unquestionably, they will. But basically, one could consider lung cancer – despite the four major stages and multiple substages – that you really have three buckets that people will fit into. They have localized disease, which we will predominantly address with a localized therapy – surgery, radiation. And many of those patients, however, particularly those who might have a lymph node that’s positive, will benefit from chemotherapy to prevent recurrence.

We have patients with locally advanced disease. Primarily, those are patients who have lymph nodes located in the middle of the chest as opposed to more localized disease where if there’s a lymph node present it’s more in the lobe of the lung. Those patients with lymph nodes in the middle of the chest or larger tumors are approached with frequently a combination of chemotherapy, radiation, sometimes surgery.

And then we have patients with advanced disease who will be predominantly treated with drug therapies, which nowadays, depending upon the molecular background of the tumor, could be a targeted treatment if they have a specific mutation.

Something we see most frequently, though certainly not exclusively, in patients with scant or no smoking history, they may be approached with immunotherapy or chemotherapy combined with immunotherapy.

And there are many considerations that go into those decisions. And even in advanced stage, there are certainly roles for surgery and radiation depending upon whether there are structural abnormalities, occasionally whether there are relatively few areas or several areas of metastatic disease. And in the localized and locally advanced disease, our goal is cure in those, though we certainly are not there for every patient yet.

And in advanced disease, it’s extension of life, which is now quite considerable compared to untreated disease. And I think in certain situations, particularly those who only have a single area of metastatic disease, curative treatment is a realistic possibility. And even those with more disseminated disease, we’re now beginning to see a substantial fraction of patients who are still alive at five years or more. So, we’re beginning very cautiously to think that perhaps some of those patients may even be cured of their disease, though I’m not quite ready to say that.

How Genetic Testing Has Revolutionized Lung Cancer Treatment

How Genetic Testing Has Revolutionized Lung Cancer Treatment from Patient Empowerment Network on Vimeo.

Dr. Martin Edelman explains how genetic testing has revolutionized the lung cancer treatment landscape. Want to learn more? Download the Program Resource Guide here.

Dr. Martin J. Edelman is Chair of the Department of Hematology/Oncology and Deputy Director for Clinical Research at Fox Chase Cancer Center. More about this expert here.

View more from Fact or Fiction? Lung Cancer

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Related Programs:

  

Lung Cancer Treatment Decisions: Which Path is Best for You?

  

Is Lung Cancer Treatment Effective in Older Patients?

  

Could A Targeted Lung Cancer Treatment Be Right For You?


Transcript:

Patricia:

How is genetic testing changing the landscape?

Dr. Edelman:

So, genetic testing – and in this case the testing of the tumor, not the germline, not the individual – has been very, very crucial. If you go back about 20 years ago, there was a family of drugs called epidermal growth factor receptor inhibitors or EGFR inhibitors.

And the basic science at the time made it look like these would be best combined with chemotherapy in squamous cell carcinoma. And as it turned out, combined with chemotherapy they weren’t very useful. But as single agents, there were these occasional very dramatic results.

So, that came at a time when we were able to evaluate tumor DNA, sequence it with some degree of ease at a reasonable cost. So, there was a discovery of specific mutations, which were targeted by these drugs. So, it was sort of interesting in that it was the clinical observation that led to the discoveries in biology, not really the other way around.

But then that in turn resulted in looking for other mutations, which were found, and then the development of other drugs – in some cases, the repurposing of other drugs for those. And now we have about a half a dozen very validated targets, each one of which in a small slice of the population – between say 1 percent and 5 percent – 10 percent of the lung cancer population – but these – if the patient has within their cancer that particular mutation, these are drugs that are 80 percent-plus effective and frequently can be administered with relatively little toxicity.

And usually they’ll give them benefit for one-plus years or more. So, that’s been an example of progress there.

Could Advances in Lung Cancer Research Benefit You?

Could Advances in Lung Cancer Research Benefit You? from Patient Empowerment Network on Vimeo.

Expert Dr. Martin Edelman reviews the latest lung cancer research and explains how it may impact patient care. Want to learn more? Download the Program Resource Guide here.

Dr. Martin J. Edelman is Chair of the Department of Hematology/Oncology and Deputy Director for Clinical Research at Fox Chase Cancer Center. More about this expert here.

View more from Fact or Fiction? Lung Cancer


Related Programs:

 

How Genetic Testing Has Revolutionized Lung Cancer Treatment

 

Lung Cancer Treatment Decisions: Which Path is Best for You?

 

Could A Targeted Lung Cancer Treatment Be Right For You?


Transcript:

Patricia:

Let’s start with an overview of lung cancer’s research. Can you tell us a little bit about the field right now?

Dr. Edelman:

So, I think the field has been remarkable over the last few years. There’s been more progress, more drugs, more things that have happened in the last five years than probably the prior 50. It’s been an amazing time both for developments in microbiology as well as in immunotherapy of the disease, which is exciting for all concerned.

For patient’s, of course – really a promise of longer, better lives, even cures where we previously did not see any in advanced disease. For the scientists – an amazing amount of new information. And for clinicians and clinical investigators – just almost too many questions for us to answer.

Patricia:

It sounds like the field is really advancing quickly. What do you attribute that to?

Dr. Edelman:

Well, you know, I think there are a number of things. Everybody always talks about breakthroughs, but breakthroughs really happen after decades of other work. And what’s happening now is really a result of many, many years of different types of work. There were our colleagues in immunology who built this area of cancer immunology for many years – I have to say with much skepticism from many, myself included.

The advances in molecular biology – our abilities to do things with tumors to determine genetics at a rate and a pace and a cost that was previously unimaginable. All of these things have developed in the last few years but really are a result of the decades of work before that. If you look at immunotherapy – probably one of our biggest areas of progress – the roots of that are a century old. So, nothing’s really new. It’s just now we have the technology and the ability to really use it. And then I would also say that we’ve created the infrastructure that lets us test this – the people who have done the studies, the endpoints for the studies, the expertise in doing clinical trials – that also was there for decades, and we frequently were kind of ridiculed at times.

Oh, you’re just testing this drug against that drug, but the reality is is it was those incremental advances. It was the ability to know the endpoints, to refine the populations, to develop the infrastructure that allowed for all of this to happen.

Patricia:

Dr. Edelman, as a researcher in the field, tell us why you’re hopeful about lung cancer research.

Dr. Edelman:

Well, I think that we have gone from trials with very small incremental improvements and frequently a very slow degree of progress where if we had a positive study every two or three years, we were thrilled – to the point where we’ve had an avalanche of positive studies. I don’t think my younger colleagues know what a negative trial looks like anymore. Even our negative trials are pretty impressive. We’ve had studies where an immunotherapy agent was compared with chemotherapy. And it was designed to show that the drug would be better.

And it was just as good, and that was a negative study. That’s the correct interpretation, but still I would point out that that’s quite remarkable because these other drugs had taken us 25-30 years to develop. And now we have another drug with a very different mechanism of action that’s as good potentially. That’s impressive. I think we’ve just had an amazing degree of progress in the last few years. We have far more drugs. We understand far more about the disease – the technology at every point from diagnosis to assessment of response to the ability to evaluate better what we’re not doing well. So, our studies now frequently have biopsies before, during, and after treatment in a way of trying to figure out why is stuff working or not working.

Back in 2006 or so, I proposed a study. We ended up doing it, but it took two or three years because we were requiring a biopsy result – actually, not even a new biopsy but just an archived specimen from the original biopsy to determine eligibility, and there was strong pushback that we would never be able to do that. And now, we routinely are getting biopsies and re-biopsying, and that’s over a brief period of time.

So, we’re getting to get better understanding of the disease, and why stuff works and doesn’t work. And I think that that’s why our progress will accelerate. And I would again emphasize progress only happens – real progress – only through clinical trials. We’ve cured a lot of mice for many decades. A mouse is not a person. You actually have to do the studies patient by patient, and I think we are making substantial progress. We almost have too many things to test right now.