Multiple Myeloma: New Treatments Aid Patient Subgroups

Article Type
Changed
Wed, 09/25/2024 - 06:45

“Therapeutic innovations like elranatamab achieve a lasting response in 61% of patients with multiple myeloma and complete remission in 30%,” said María Victoria Mateos, MD, PhD, a consultant physician in the Hematology Service at the University Clinical Hospital of Salamanca, Spain, and president of the Spanish Society of Haematology and Haemotherapy.

“The introduction of treatments such as elranatamab (Elrexfio) is allowing patients with multiple myeloma, which is still incurable for now, to have different options and achieve long periods of remission, thus improving their survival,” she added. “This therapeutic innovation is highly effective and well tolerated in patients with relapse or refractory multiple myeloma.” The overall response rate is “up to 61%, early, deep, and long-lasting.”

In an interview with El Médico Interactivo, Dr. Mateos explained the new approaches to multiple myeloma. She highlighted the effectiveness of new treatments and reviewed the latest data on this disease, which were presented at the recent European Hematology Association Congress.
 

What is the incidence rate of multiple myeloma in the Spanish population?

Multiple myeloma has an incidence of approximately 4-5 new cases per 100,000 inhabitants per year. This means that around 3000 new cases are diagnosed each year in Spain. As with most tumors, multiple myeloma is generally slightly more common in males than females. It is the third most frequent hematologic cancer in men (1757 new cases) and women (1325 new cases), behind lymphoma and leukemias.

At what age is it most often diagnosed?

It affects older people, with recent reports indicating around 68-69 years as the median age. Although more young people are being diagnosed with multiple myeloma, analyses of how this hematologic cancer affects the general population show that it generally impacts patients over age 65 years.

What is the typical survival prognosis?

Thanks to research and therapeutic innovation, the prognosis has changed significantly over the past 20-25 years. Today, if a patient with multiple myeloma receives a diagnosis and does not exhibit poor prognostic characteristics (and this description fits approximately 70%-80% of patients with multiple myeloma), it is realistic to expect a survival exceeding 10 years. A few years ago, this outcome was unimaginable, but a significant amount of therapeutic innovation has made it possible. That’s why I emphasize that it is realistic to provide these data with such a positive outlook.

Is multiple myeloma a refractory type of cancer?

It was a refractory type of cancer. Twenty years ago, there were no treatment options, and therefore survival was around 2-3 years, because treatment mainly consisted of using alkylating agents and corticosteroids. This is what made it refractory.

With the emergence of new therapeutic innovations, patients have been responding better and their responses are lasting longer. Although there is still a group of patients, about 10%-15%, with a poor prognosis and refractory disease, those with standard risk are responding better to different therapies.

Although most patients will eventually exhaust the treatments, which until now were primarily triple-drug regimens (such as proteasome inhibitors, immunomodulators, and antiCD38 antibodies), the introduction of new therapies is extending the duration of responses.
 

 

 

Is the risk for relapse high?

It is very high, in the sense that almost all patients with multiple myeloma eventually relapse. However, we hope that there soon will be some patients who do not relapse.

What are the typical pathologic manifestations of this cancer? Does it affect everyone equally, or in specific ways in each person?

In multiple myeloma, we often say there are multiple myelomas. Clinically, the disease presents in most patients, around 80%, with two clinical manifestations: anemia and bone lesions. Less frequently, patients may also have kidney failure, hypercalcemia, and a higher tendency toward infection. Behind this rather common symptomatology, from a molecular and genetic perspective, each myeloma is practically unique, adding complexity to its treatment. Therefore, ultimately, myelomas end up being refractory.

Elranatamab is a new therapeutic tool. For which patients is it recommended?

It is a bispecific monoclonal antibody that corresponds to the new monotherapy strategies we have for treating patients with multiple myeloma. On the one hand, it targets damaged plasma cells, which are the patient’s tumor cells, and on the other, it binds the patient’s T cells and redirects them to the tumor niche. When this happens, the T cell activates and destroys the tumor cell.

This medication has been approved for patients with relapsed myeloma who have received traditional drugs for their treatment. We know well that patients who have already received proteasome inhibitors, immunomodulators, and anti-CD38 antibodies typically need something new after treatment. Before, there were no other options, and we would reuse what had been previously used. Now we have elranatamab, a bispecific monoclonal antibody targeting a new receptor that has shown significant responses as monotherapy.

More than 60% of patients respond, and more than 30% achieve complete remission. The key is the response duration and progression-free survival of almost a year and a half. This is the longest progression-free survival we have seen to date in previous lines. Therefore, it fills the needs we had for these relapsed or refractory myeloma patients.
 

What advantages does this new treatment offer?

It represents a therapeutic innovation because, as mentioned, it achieves a response in more than 60% of patients, and around 35% achieve complete remission. The median response duration has not been reached yet. Progression-free survival is 17.2 months, almost a year and a half, and overall survival is almost two years. 

Furthermore, it is administered as subcutaneous monotherapy weekly for the first six cycles and then every 15 days. It has a good safety profile, although some adverse events are known, so we have strategies to combat or mitigate them, making the treatment generally well tolerated.
 

What side effects are being observed?

They are manageable. When the drug is first administered, patients may experience what we call a cytokine release syndrome, which is a result of the treatment’s mechanism. However, we can predict very well when it occurs, usually 2 days after the first doses, and we have strategies to mitigate it.

The second most common adverse event we need to be cautious about is infection. Nowadays, before starting treatment, patients update their vaccination schedule, receive antiviral prophylaxis, and receive prophylaxis against certain germs, resulting in reduced infections. However, infections are probably the adverse events we need to be most careful about when treating the patient.

We must ensure that prophylaxis is performed, and if fever occurs and an infection is suspected, cultures and all kinds of studies must be done to identify and treat it properly.
 

 

 

How does elranatamab change the treatment of an incurable disease? Does it bring us closer to a cure or to making multiple myeloma a manageable chronic disease?

With the already approved elranatamab, the most important aspect is that it adds another treatment option for patients with myeloma. With the progression-free survival data I indicated, life expectancy is increased, with a good quality of life and acceptable safety.

Obviously, elranatamab is still under study and development, even in early lines, including in patients with newly diagnosed myeloma. When we are choosing first-line therapy, we select the best patients by combining traditional drugs with these new immunotherapies, such as elranatamab, it is likely that we are much closer to offering a cure to specific subgroups.

Although it won’t happen in all cases, I believe it will be applicable to a significant subgroup of patients, making chronicity of the disease a reality we are already approaching. Each day, we encounter more patients receiving different lines of treatment and ultimately meeting their life expectancy with myeloma. Even though some may die, it is often due to causes not related to myeloma. This is the most important contribution of these innovations, such as elranatamab.
 

Dr. Mateos reported receiving honoraria from Janssen, Celgene, Takeda, Amgen, GSK, AbbVie, Pfizer, Regeneron, Roche, Sanofi, Stemline, Oncopeptides, and Kite for delivering lectures and for participating in advisory boards. 

This story was translated from El Médico Interactivo, which is part of the Medscape professional network, using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

Publications
Topics
Sections

“Therapeutic innovations like elranatamab achieve a lasting response in 61% of patients with multiple myeloma and complete remission in 30%,” said María Victoria Mateos, MD, PhD, a consultant physician in the Hematology Service at the University Clinical Hospital of Salamanca, Spain, and president of the Spanish Society of Haematology and Haemotherapy.

“The introduction of treatments such as elranatamab (Elrexfio) is allowing patients with multiple myeloma, which is still incurable for now, to have different options and achieve long periods of remission, thus improving their survival,” she added. “This therapeutic innovation is highly effective and well tolerated in patients with relapse or refractory multiple myeloma.” The overall response rate is “up to 61%, early, deep, and long-lasting.”

In an interview with El Médico Interactivo, Dr. Mateos explained the new approaches to multiple myeloma. She highlighted the effectiveness of new treatments and reviewed the latest data on this disease, which were presented at the recent European Hematology Association Congress.
 

What is the incidence rate of multiple myeloma in the Spanish population?

Multiple myeloma has an incidence of approximately 4-5 new cases per 100,000 inhabitants per year. This means that around 3000 new cases are diagnosed each year in Spain. As with most tumors, multiple myeloma is generally slightly more common in males than females. It is the third most frequent hematologic cancer in men (1757 new cases) and women (1325 new cases), behind lymphoma and leukemias.

At what age is it most often diagnosed?

It affects older people, with recent reports indicating around 68-69 years as the median age. Although more young people are being diagnosed with multiple myeloma, analyses of how this hematologic cancer affects the general population show that it generally impacts patients over age 65 years.

What is the typical survival prognosis?

Thanks to research and therapeutic innovation, the prognosis has changed significantly over the past 20-25 years. Today, if a patient with multiple myeloma receives a diagnosis and does not exhibit poor prognostic characteristics (and this description fits approximately 70%-80% of patients with multiple myeloma), it is realistic to expect a survival exceeding 10 years. A few years ago, this outcome was unimaginable, but a significant amount of therapeutic innovation has made it possible. That’s why I emphasize that it is realistic to provide these data with such a positive outlook.

Is multiple myeloma a refractory type of cancer?

It was a refractory type of cancer. Twenty years ago, there were no treatment options, and therefore survival was around 2-3 years, because treatment mainly consisted of using alkylating agents and corticosteroids. This is what made it refractory.

With the emergence of new therapeutic innovations, patients have been responding better and their responses are lasting longer. Although there is still a group of patients, about 10%-15%, with a poor prognosis and refractory disease, those with standard risk are responding better to different therapies.

Although most patients will eventually exhaust the treatments, which until now were primarily triple-drug regimens (such as proteasome inhibitors, immunomodulators, and antiCD38 antibodies), the introduction of new therapies is extending the duration of responses.
 

 

 

Is the risk for relapse high?

It is very high, in the sense that almost all patients with multiple myeloma eventually relapse. However, we hope that there soon will be some patients who do not relapse.

What are the typical pathologic manifestations of this cancer? Does it affect everyone equally, or in specific ways in each person?

In multiple myeloma, we often say there are multiple myelomas. Clinically, the disease presents in most patients, around 80%, with two clinical manifestations: anemia and bone lesions. Less frequently, patients may also have kidney failure, hypercalcemia, and a higher tendency toward infection. Behind this rather common symptomatology, from a molecular and genetic perspective, each myeloma is practically unique, adding complexity to its treatment. Therefore, ultimately, myelomas end up being refractory.

Elranatamab is a new therapeutic tool. For which patients is it recommended?

It is a bispecific monoclonal antibody that corresponds to the new monotherapy strategies we have for treating patients with multiple myeloma. On the one hand, it targets damaged plasma cells, which are the patient’s tumor cells, and on the other, it binds the patient’s T cells and redirects them to the tumor niche. When this happens, the T cell activates and destroys the tumor cell.

This medication has been approved for patients with relapsed myeloma who have received traditional drugs for their treatment. We know well that patients who have already received proteasome inhibitors, immunomodulators, and anti-CD38 antibodies typically need something new after treatment. Before, there were no other options, and we would reuse what had been previously used. Now we have elranatamab, a bispecific monoclonal antibody targeting a new receptor that has shown significant responses as monotherapy.

More than 60% of patients respond, and more than 30% achieve complete remission. The key is the response duration and progression-free survival of almost a year and a half. This is the longest progression-free survival we have seen to date in previous lines. Therefore, it fills the needs we had for these relapsed or refractory myeloma patients.
 

What advantages does this new treatment offer?

It represents a therapeutic innovation because, as mentioned, it achieves a response in more than 60% of patients, and around 35% achieve complete remission. The median response duration has not been reached yet. Progression-free survival is 17.2 months, almost a year and a half, and overall survival is almost two years. 

Furthermore, it is administered as subcutaneous monotherapy weekly for the first six cycles and then every 15 days. It has a good safety profile, although some adverse events are known, so we have strategies to combat or mitigate them, making the treatment generally well tolerated.
 

What side effects are being observed?

They are manageable. When the drug is first administered, patients may experience what we call a cytokine release syndrome, which is a result of the treatment’s mechanism. However, we can predict very well when it occurs, usually 2 days after the first doses, and we have strategies to mitigate it.

The second most common adverse event we need to be cautious about is infection. Nowadays, before starting treatment, patients update their vaccination schedule, receive antiviral prophylaxis, and receive prophylaxis against certain germs, resulting in reduced infections. However, infections are probably the adverse events we need to be most careful about when treating the patient.

We must ensure that prophylaxis is performed, and if fever occurs and an infection is suspected, cultures and all kinds of studies must be done to identify and treat it properly.
 

 

 

How does elranatamab change the treatment of an incurable disease? Does it bring us closer to a cure or to making multiple myeloma a manageable chronic disease?

With the already approved elranatamab, the most important aspect is that it adds another treatment option for patients with myeloma. With the progression-free survival data I indicated, life expectancy is increased, with a good quality of life and acceptable safety.

Obviously, elranatamab is still under study and development, even in early lines, including in patients with newly diagnosed myeloma. When we are choosing first-line therapy, we select the best patients by combining traditional drugs with these new immunotherapies, such as elranatamab, it is likely that we are much closer to offering a cure to specific subgroups.

Although it won’t happen in all cases, I believe it will be applicable to a significant subgroup of patients, making chronicity of the disease a reality we are already approaching. Each day, we encounter more patients receiving different lines of treatment and ultimately meeting their life expectancy with myeloma. Even though some may die, it is often due to causes not related to myeloma. This is the most important contribution of these innovations, such as elranatamab.
 

Dr. Mateos reported receiving honoraria from Janssen, Celgene, Takeda, Amgen, GSK, AbbVie, Pfizer, Regeneron, Roche, Sanofi, Stemline, Oncopeptides, and Kite for delivering lectures and for participating in advisory boards. 

This story was translated from El Médico Interactivo, which is part of the Medscape professional network, using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

“Therapeutic innovations like elranatamab achieve a lasting response in 61% of patients with multiple myeloma and complete remission in 30%,” said María Victoria Mateos, MD, PhD, a consultant physician in the Hematology Service at the University Clinical Hospital of Salamanca, Spain, and president of the Spanish Society of Haematology and Haemotherapy.

“The introduction of treatments such as elranatamab (Elrexfio) is allowing patients with multiple myeloma, which is still incurable for now, to have different options and achieve long periods of remission, thus improving their survival,” she added. “This therapeutic innovation is highly effective and well tolerated in patients with relapse or refractory multiple myeloma.” The overall response rate is “up to 61%, early, deep, and long-lasting.”

In an interview with El Médico Interactivo, Dr. Mateos explained the new approaches to multiple myeloma. She highlighted the effectiveness of new treatments and reviewed the latest data on this disease, which were presented at the recent European Hematology Association Congress.
 

What is the incidence rate of multiple myeloma in the Spanish population?

Multiple myeloma has an incidence of approximately 4-5 new cases per 100,000 inhabitants per year. This means that around 3000 new cases are diagnosed each year in Spain. As with most tumors, multiple myeloma is generally slightly more common in males than females. It is the third most frequent hematologic cancer in men (1757 new cases) and women (1325 new cases), behind lymphoma and leukemias.

At what age is it most often diagnosed?

It affects older people, with recent reports indicating around 68-69 years as the median age. Although more young people are being diagnosed with multiple myeloma, analyses of how this hematologic cancer affects the general population show that it generally impacts patients over age 65 years.

What is the typical survival prognosis?

Thanks to research and therapeutic innovation, the prognosis has changed significantly over the past 20-25 years. Today, if a patient with multiple myeloma receives a diagnosis and does not exhibit poor prognostic characteristics (and this description fits approximately 70%-80% of patients with multiple myeloma), it is realistic to expect a survival exceeding 10 years. A few years ago, this outcome was unimaginable, but a significant amount of therapeutic innovation has made it possible. That’s why I emphasize that it is realistic to provide these data with such a positive outlook.

Is multiple myeloma a refractory type of cancer?

It was a refractory type of cancer. Twenty years ago, there were no treatment options, and therefore survival was around 2-3 years, because treatment mainly consisted of using alkylating agents and corticosteroids. This is what made it refractory.

With the emergence of new therapeutic innovations, patients have been responding better and their responses are lasting longer. Although there is still a group of patients, about 10%-15%, with a poor prognosis and refractory disease, those with standard risk are responding better to different therapies.

Although most patients will eventually exhaust the treatments, which until now were primarily triple-drug regimens (such as proteasome inhibitors, immunomodulators, and antiCD38 antibodies), the introduction of new therapies is extending the duration of responses.
 

 

 

Is the risk for relapse high?

It is very high, in the sense that almost all patients with multiple myeloma eventually relapse. However, we hope that there soon will be some patients who do not relapse.

What are the typical pathologic manifestations of this cancer? Does it affect everyone equally, or in specific ways in each person?

In multiple myeloma, we often say there are multiple myelomas. Clinically, the disease presents in most patients, around 80%, with two clinical manifestations: anemia and bone lesions. Less frequently, patients may also have kidney failure, hypercalcemia, and a higher tendency toward infection. Behind this rather common symptomatology, from a molecular and genetic perspective, each myeloma is practically unique, adding complexity to its treatment. Therefore, ultimately, myelomas end up being refractory.

Elranatamab is a new therapeutic tool. For which patients is it recommended?

It is a bispecific monoclonal antibody that corresponds to the new monotherapy strategies we have for treating patients with multiple myeloma. On the one hand, it targets damaged plasma cells, which are the patient’s tumor cells, and on the other, it binds the patient’s T cells and redirects them to the tumor niche. When this happens, the T cell activates and destroys the tumor cell.

This medication has been approved for patients with relapsed myeloma who have received traditional drugs for their treatment. We know well that patients who have already received proteasome inhibitors, immunomodulators, and anti-CD38 antibodies typically need something new after treatment. Before, there were no other options, and we would reuse what had been previously used. Now we have elranatamab, a bispecific monoclonal antibody targeting a new receptor that has shown significant responses as monotherapy.

More than 60% of patients respond, and more than 30% achieve complete remission. The key is the response duration and progression-free survival of almost a year and a half. This is the longest progression-free survival we have seen to date in previous lines. Therefore, it fills the needs we had for these relapsed or refractory myeloma patients.
 

What advantages does this new treatment offer?

It represents a therapeutic innovation because, as mentioned, it achieves a response in more than 60% of patients, and around 35% achieve complete remission. The median response duration has not been reached yet. Progression-free survival is 17.2 months, almost a year and a half, and overall survival is almost two years. 

Furthermore, it is administered as subcutaneous monotherapy weekly for the first six cycles and then every 15 days. It has a good safety profile, although some adverse events are known, so we have strategies to combat or mitigate them, making the treatment generally well tolerated.
 

What side effects are being observed?

They are manageable. When the drug is first administered, patients may experience what we call a cytokine release syndrome, which is a result of the treatment’s mechanism. However, we can predict very well when it occurs, usually 2 days after the first doses, and we have strategies to mitigate it.

The second most common adverse event we need to be cautious about is infection. Nowadays, before starting treatment, patients update their vaccination schedule, receive antiviral prophylaxis, and receive prophylaxis against certain germs, resulting in reduced infections. However, infections are probably the adverse events we need to be most careful about when treating the patient.

We must ensure that prophylaxis is performed, and if fever occurs and an infection is suspected, cultures and all kinds of studies must be done to identify and treat it properly.
 

 

 

How does elranatamab change the treatment of an incurable disease? Does it bring us closer to a cure or to making multiple myeloma a manageable chronic disease?

With the already approved elranatamab, the most important aspect is that it adds another treatment option for patients with myeloma. With the progression-free survival data I indicated, life expectancy is increased, with a good quality of life and acceptable safety.

Obviously, elranatamab is still under study and development, even in early lines, including in patients with newly diagnosed myeloma. When we are choosing first-line therapy, we select the best patients by combining traditional drugs with these new immunotherapies, such as elranatamab, it is likely that we are much closer to offering a cure to specific subgroups.

Although it won’t happen in all cases, I believe it will be applicable to a significant subgroup of patients, making chronicity of the disease a reality we are already approaching. Each day, we encounter more patients receiving different lines of treatment and ultimately meeting their life expectancy with myeloma. Even though some may die, it is often due to causes not related to myeloma. This is the most important contribution of these innovations, such as elranatamab.
 

Dr. Mateos reported receiving honoraria from Janssen, Celgene, Takeda, Amgen, GSK, AbbVie, Pfizer, Regeneron, Roche, Sanofi, Stemline, Oncopeptides, and Kite for delivering lectures and for participating in advisory boards. 

This story was translated from El Médico Interactivo, which is part of the Medscape professional network, using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

Publications
Publications
Topics
Article Type
Sections
Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Disqus Comments
Default
Use ProPublica
Hide sidebar & use full width
render the right sidebar.
Conference Recap Checkbox
Not Conference Recap
Clinical Edge
Display the Slideshow in this Article
Medscape Article
Display survey writer
Reuters content
Disable Inline Native ads
WebMD Article