The Truth About MGUS from Patient Empowerment Network on Vimeo.

Is MGUS the same as smoldering myeloma? Myeloma expert, Dr. Irene Ghobrial, provides a detailed overview of MGUS, including the risk of progression.

Dr. Irene Ghobrial is Director of the Clinical Investigator Research Program at Dana-Farber Cancer Institute and Professor of Medicine at Harvard Medical School. Dr. Ghobrial specializes in multiple myeloma (MM) and Waldenström macroglobulinemia (WM), focusing on the precursor conditions of monoclonal gammopathy of undetermined significance (MGUS) and smoldering myeloma. More about this expert here.

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Transcript:

Patricia:

What about this one? “An MGUS diagnosis will lead to myeloma.”

Dr. Ghobrial:

Great question. So, let’s talk about MGUS in general. In the general population, once you’re over the age of 50, there’s a three percent change of having MGUS incidentally found, and that’s known from the big studies from Dr. Robert Kyle. Any of us walking around probably may have MGUS, and we don’t know.

We started recently a big study called the PROMISE study where we actually screen for the first time to look for myeloma – or, for MGUS – and the reason for that is we said, “You go screening for mammography with breast cancer, you go screening with a colonoscopy for colon cancer; we don’t screen for myeloma, which is an easy blood cancer with a blood test. Let’s screen for it.” So, that’s available online – promisestudy.org.

The other thing that we said is if you have MGUS, your chance of progression is only one percent per year. That’s very important to know. So, that means that in 10 years, you have a 10% chance of progression to myeloma. In 20 years, you have a 20% chance. So, if you’re 70 or 80, you may have something else that happens before you even develop myeloma or before you are at risk of myeloma.

However, that doesn’t mean that you don’t have the chance. You have a very small chance; it’s a precursor to myeloma, but it’s one of the biggest precursors to myeloma, so we always tell you, “Please go see your doctor, please do follow up with us because the one thing that’s important is we catch it early before it happens.” So, it does not always go to myeloma, but if we live for another 100 years, it may actually progress to myeloma because of the 1% chance per year.

Patricia:

How about this one? “MGUS and smoldering myeloma are the same.”

Dr. Ghobrial:

That’s not true. That’s a very important question. So, in general, MGUS is diagnosed as having less than 10% plasma cells and a small monoclonal protein, less than 3 grams, and you don’t have any organ damage.

Smoldering myeloma – and, the name says it; it’s almost myeloma, it has a higher chance of progressing to myeloma – in general, it’s about 10% per year, and usually, the bone marrow has more than 10% plasma cells. Now, you start telling me as a patient, “Well, if my bone marrow is nine percent, I’m MGUS, and if it’s 11%, I’m smoldering myeloma, that doesn’t make sense.” So, it’s correct. In general, those demarcations or numbers are more for us as physicians to talk to each other about what we’re calling rather than the patient themselves. The patient is a continuum.

So, you may move from MGUS to smoldering at a certain point, and it’s not really that extra percentage of bone marrow that moves you into the 10% risk. In general, again, smoldering myeloma, you have a higher chance of going to myeloma. So, I saw a patient recently who’s 30 who has smoldering myeloma. The chances of progressing to myeloma is 10% per year. In five years, you have a 50% chance.

You want to make sure that patient is followed up carefully, and you want to offer, potentially, clinical trials because we want to prevent progression. The hope in the future is you don’t want until you have lytic lesions, fractures in your bones, kidney failure, and then we treat. The hope is we treat you earlier and we can make a huge difference in that early intersection for myeloma.

Patricia:

It sounds like staying engaged with your care team is critical.

Dr. Ghobrial:

Absolutely, and I would say myeloma is a specialty field. Come and see a myeloma expert, wherever it is, even for a one-time consult, because it’s really complicated and it’s not a common disease, so it’s not something easy for everyone to know what to do with MGUS, what to do with smoldering, what to do with overt myeloma. I relax for the first time. All of these things are important, and just like you go and see the best specialist in anything, I would say care about your myeloma in a very specific way, ask your doctor questions, go online and look it up, and always ask an expert if you want to have a second opinion.

The Truth About Myeloma Treatment Side Effects from Patient Empowerment Network on Vimeo.

 Managing myeloma treatment side effects can be overwhelming. Dr. Irene Ghobrial reviews common side effects and shares how life can go on, even while undergoing treatment for myeloma. Download the Program Resource Guide, here. 

Dr. Irene Ghobrial is Director of the Clinical Investigator Research Program at Dana-Farber Cancer Institute and Professor of Medicine at Harvard Medical School. Dr. Ghobrial specializes in multiple myeloma (MM) and Waldenström macroglobulinemia (WM), focusing on the precursor conditions of monoclonal gammopathy of undetermined significance (MGUS) and smoldering myeloma. More about this expert here.

See More From Fact of Fiction? Myeloma

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Why Should Myeloma Patients Visit the Dentist Frequently?

Myeloma Treatment Options: What’s Available?

Hesitant to Join a Support Group? Encouraging Advice from an Advocate

Transcript:

Patricia:                      

What are the common myeloma misconceptions about treatment side effects?

Dr. Ghobrial:              

I think the biggest thing is the loss of hair, the nausea, and fatigue, and to the point that I cannot travel, I cannot see my family, I’m gonna be so immunosuppressed. And again, that’s a huge misconception. Yes, there is toxicity for every drug. Even if you take aspirin, you have toxicity from it.

But, every drug has risks and benefits, and currently, the combinations we have are just impressive that they are well tolerated in general. I’m not saying there is no side effect – there is, for every different class of agents, there are, and you will go through those side effects with your doctor in detail – but in general, yes, you’re slightly immunosuppressed, you have to take care of it, and I said it yesterday to one of my patients – if someone is looking very sick in front of you, don’t go and hug them.

Christmas is around the corner, and we want to make sure people celebrate and enjoy life and enjoy the holidays with their family members.

Patricia:                      

Dr. Ghobrial, let’s talk about some of the things that patients are concerned about when they come in about treatment side effects, and maybe some of those things aren’t true. You tell me. Treatment side effects are unavoidable – we already talked a little bit about that. How about this one? “Myeloma patients should visit the dentist more frequently.”

Dr. Ghobrial:              

So, there is something about the bisphosphonates that we give patients, and they can cause – in a very rare number of patients – something called osteonecrosis of the jaw.

In the old days, when we didn’t know about that side effect, people would go get a root canal, come back, and have a big problem of osteonecrosis of the jaw with severe pain, and it doesn’t recover.

So, we’ve learned our lesson. We know very well that we hold Zometa or zoledronic acid if they’re getting any procedures. We make sure they don’t get surgical procedures – it doesn’t mean don’t get dental cleaning, please do the usual things for dental health, but don’t go into surgical procedures when you’re getting zoledronic acid – and we’re very careful with that.

We talk to our patients. Most dentists know about it, so I think this is something that in the old days, it was a problem. Now, we know how to medicate that.

Patricia:                      

Sure. How about this one? “Treatment causes increased risk for blood clots.”

Dr. Ghobrial:              

So, a couple of the drugs that we have – especially immunomodulators – can increase your risk for DVTs, blood clots, or pulmonary embolism, PE. So, the first thing we say is, “Let’s assess your baseline risk.

Are you someone who is at risk of clotting anyways?” Remember, myeloma also increases your risk of clotting, so you’re double. So, if you are at a high risk of clotting, then we would give the full anticoagulation. If you are not, then we would say aspirin is good enough to control that inflammation and endothelial damage that happens early on with therapy, and that can take care of it.

Patricia:                      

How about this one? “Side effects can be managed by diet and lifestyle.”

Dr. Ghobrial:              

So, I am a big believer that exercise and good, healthy living helps you in general. It makes your mood better, it makes you feel stronger, it gives you that energy because of the fatigue from the side effects, it helps with the dexamethasone because dex is a steroid, so you’re gonna be hungry, you’re gonna be eating more, and the on-and-off makes you fatigued and tired.

So, absolutely, diet and good healthy living – I’m not saying you have to go into extreme starvation and things like that. We say in general, be good, healthy living; exercise if you can.

Patricia:                      

What do you hear from your patients about side effects and treatments that they may think is true?

Dr. Ghobrial:              

I think neuropathy is very important, and we underestimate the neuropathy, so if you have numbness or tingling, tell your doctor.

That comes from Velcade; it comes from thalidomide when we used to use thalidomide, but it can happen in many patients who have an underlying amyloidosis and we did not diagnose it yet, or it can just happen as you go on from myeloma, rarely. So, tell your doctor about this.

I think the fatigue is very important to know about it because people suddenly change their life, and they want to know about that. I think the rashes that can happen with many of the drugs are very important to know about so that you’re not surprised when you get the rash. We know, for example, Revlimid can cause itching of the scalp, and that’s something that if we don’t tell the patients and they start going like this, then there is a problem.

So, it’s small things, but we want to let them know. We usually tell the patients everything, to a point of just going through all the side effects. It’s better to be aware of it, and then, if you get or not, at least you were aware.

Patricia:                      

Sure. How does one distinguish treatment side effects from comorbidities like fatigue?

Dr. Ghobrial:              

I think that’s important, and again, talking to your doctor is very important. Keeping a diary on the side is very important because you may have had some of those problems, and that could be from myeloma before you even started the drugs, and making sure that we know what’s from myeloma, what’s from your thyroid issue, what’s from your lung problems if you have asthma or COPD, what’s your diabetes if you have that or your other medications, from what are you doing with those medications.

I think that’s why when you start therapy, we tell you, “Try not to take too many other medications that we don’t know about, herbal medicines and other things, because then we don’t know what are the side effects and what’s causing what.”

Patricia:                      

Sure. You mentioned neuropathy. Let’s talk a little bit about what that is.

Dr. Ghobrial:              

So, neuropathy can come in different ways, but the most common one is numbness and tingling that you have in your tips of toes and tips of your fingers, and that can happen from medications, as we said, or from the underlying myeloma or amyloidosis. It can be painful, and we’re careful that if you have this, tell your doctor because if it get worse and worse, it’s very hard for us to reverse neuropathy, so just always tell us because we can stop the drug, we can decrease the dose rather than having you go through it.