Upfront Transplants in Patients With Mantle Cell Lymphoma

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What is your outlook on the role of upfront autologous stem cell transplant (ASCT) for patients with mantle cell lymphoma (MCL)?

Dr. Barrientos: Most of the data that we have for upfront ASCT for young patients in frontline therapy come from the era when we did not use rituximab, and the data have not kept up with the pace of all the recent advances. Rituximab has changed the way we approach maintenance therapy after induction therapy. No randomized controlled trial data (in regimens that incorporate rituximab and cytarabine) have demonstrated a benefit in overall survival (OS) with ASCT in the modern era.

There is a lot to consider for every patient with MCL before we start therapy or discuss upfront transplant. MCL is one of these non-Hodgkin lymphomas that unfortunately can be aggressive in some patients depending on their prognostic markers and particular clinical features of the disease. Some patients have a more indolent form, whereas others have a more aggressive presentation at the time of diagnosis. The disease is heterogeneous and will respond differently to certain regimens. For example, patients with MCL who have a high proliferation rate, blastoid morphology, multiple chromosomal aberrations, complex karyotype, and/or the presence of tumor suppressor protein P53 (TP53) mutation will likely have a more aggressive course. Fitness for transplant is also an important consideration regardless of age; that is, a patient with comorbid end-stage chronic kidney or liver disease will not be able to tolerate a transplant.

Even with optimal therapy that incorporates rituximab and cytarabine, pursuing a transplant does not necessarily benefit survival in patients with a known TP53 mutation, as these patients typically experience increased toxicity without improved OS. We know they will not respond well, and we should discuss the available data so that the patients can make a sound decision and consider participation in a clinical trial that incorporates novel agents. Another type of mutation—cyclin-dependent kinase inhibitor 2A (CDKN2A)—also has lower OS. Concurrent deletion of CDKN2A and TP53 aberration (deletion and/or mutation) are known to be associated with lower OS given their chemoresistant nature. Patients with these genetic mutations should not be offered standard ASCT, but rather they should be identified early on and prioritized to participate in clinical trials.

Importantly, the role of upfront ASCT is changing right now, based on a recent trial that was presented at the latest American Society of Hematology meeting in 2022. The TRIANGLE trial demonstrated the addition of ibrutinib (a first-generation Bruton tyrosine kinase [BTK] inhibitor) to standard chemoimmunotherapy induction and 2 years of ibrutinib maintenance can improve outcomes vs standard chemoimmunotherapy induction and ASCT alone for younger patients with MCL. However, longer follow-up is needed to fully elucidate the role of ASCT in the era of BTK inhibitors when incorporated early on into the treatment paradigm.

The TRIANGLE trial was an international, randomized 3-arm phase 3 trial (EudraCT-no. 2014-001363-12) for young (up to 65 years) fit patients with histologically confirmed, untreated, advanced stage II-IV MCL. In the control arm A, patients received an alternating R-CHOP/R-DHAP induction followed by myeloablative consolidation (ASCT). In arm A+I, ibrutinib was added to the R-CHOP cycles (560 mg day 1-19) and was applied as maintenance (continuous dosing) for 2 years. In arm I, the same induction and maintenance was applied but high-dose consolidation and ASCT was skipped. A rituximab maintenance (single doses every 2 months for up to 3 years) was allowed to be added in all study arms according to national clinical routine.

The study showed that failure-free survival at 3 years was 72% with chemotherapy alone, 86% with ibrutinib alone, and 88% with ibrutinib plus ASCT. However, the ibrutinib plus ASCT group seemed to have much more toxicity, comorbidities, and other complications from the transplant. The OS data are not mature yet, but looking at the available data, ibrutinib alone might be more beneficial to our patients— not only in terms of efficacy, but also in tolerability and response, with less toxicity over time.

To put things in perspective, we did not have good salvage therapies a decade ago. At the time ASCT was incorporated, it was a good option that allowed numerous patients to achieve a deep response with durable remission duration. Before ibrutinib was approved, the overall response rate for the best salvage therapies was not as encouraging as the initial therapy and, with each relapse, the duration of response shortened. When ibrutinib came along, the overall response rate improved significantly. But again, these patients had relapsed/refractory disease. Researchers have been investigating what would happen if we used such a drug in earlier lines of therapy. Can we get better outcomes? Can we get patients in remission longer, similar to what we have seen with ASCT, but without the ASCT?

There has never been a single modern trial that has demonstrated that transplant improves survival. Transplantation can improve progression-free survival, but not OS. For a disease for which we do not have a cure, if we can keep patients in remission with a good salvage therapy and give them a better quality of life, without subjecting them to an ASCT, then I might choose that. New targeted agents and novel therapies are in clinical development all the time, so the future is bright for patients with this diagnosis. Given the novel salvage therapies in the pipeline, we may be able to no longer recommend ASCT upfront for most patients soon.

Can you share more about the potential benefits of using salvage therapies over ASCT, and particularly any promising newer agents in the salvage therapy setting?

Dr. Barrientos: Recently we had the FDA approval of pirtobrutinib—a noncovalently bound BTK inhibitor—for patients with relapsed/refractory MCL in whom at least 2 lines of systemic therapy had failed, including another BTK inhibitor. In the trial that led to the accelerated approval, pirtobrutinib-treated patients showed an overall response rate of 50% in those who received the drug at 200 mg daily (n = 120); most of the responses were partial responses. The efficacy of other novel drugs are being studied in patients with MCL. For example, ROR1 (receptor tyrosine kinase–like orphan receptor 1) inhibitors and BTK degraders are currently in clinical trials. Chimeric antigen receptor (CAR) T-cell therapy targeting CD19 has been approved for the treatment of adult patients with relapsed or refractory MCL, and this may be an option for some patients.

Multiple novel agents might be able to salvage our patients without subjecting them to an upfront transplant. My hope is to get away from using the intense chemotherapy regimens that might cause myelosuppression, infection risk, or other toxicities, and try to stay with the novel agents. We need to do better for our patients.

Based on the data we now have, until there is a trial that demonstrates a higher OS rate with ASCT, it is hard for me to tell a patient to blindly pursue ASCT without learning more about all the available options. If you have access to a good salvage therapy, especially with all these new promising agents, a patient might be able to stay in remission without having ASCT, which can still have an increased risk of morbidity.

Are there certain patient groups that should never be considered for ASCT?

Dr. Barrientos: Younger patients with the CDKN2A gene—which represents about 22% of patients—and those who have a TP53 mutation should not be considered for a standard transplant because they have a worse outcome independent of the treatment. I would also include complex karyotype patients because of the same nature of the chromosomal aberrations. The more genetic aberrations that a patient has, the more likelihood that any chemotherapy will damage the DNA further and create a more aggressive clone. Instead, I would recommend that young patients in this category participate in a clinical trial with novel agents.

With novel therapies in the pipeline, the availability of CAR T, and now the bispecific antibodies such as blinatumomab and HexAbs coming along, the number of patients who may opt out of ASCT may increase. I have a long discussion with my patients. The more educated they are, the better it is for the patient. At the end of the day, the most important thing for me, with any therapy, is: how does the patient feel? Because if we cannot cure a patient or provide a survival advantage, I do not want to give that patient something that will decrease their quality of life. I would rather keep the patient in some sort of stable disease remission, comfortable, and having a good quality of life. That is my goal for anyone who cannot be cured. Now if it is a curable disease, like a diffuse large cell lymphoma or a Burkitt’s lymphoma, then it is a different story. But for people with MCL, a disease that you cannot cure, or chronic lymphocytic leukemia or follicular lymphoma, then it becomes a different discussion. Undetectable minimal residual disease correlates with longer remission durations, but sometimes trying to achieve that, you can actually do a lot of harm to some patients.

Are there any other conversations you have with your patients in day-to-day practice?

Dr. Barrientos: I always tell my patients to be on top of the age-appropriate cancer screening recommendations. For example, they should see a dermatologist once a year. Men should make sure that their prostate is checked. I recommend women get breast mammograms, Pap smears, and most importantly to avoid smoking—and that includes vaping. It is important to lead a healthy life to minimize the risk of secondary malignancies.

For risk of infections, I recommend to all my patients to be up to date on their vaccinations, such as pneumonia if they are older than 65, Shingrix for prevention of reactivation of varicella or chickenpox, and the flu shot once a year. I also recommend the COVID-19 vaccine even now, as our patients with blood disorders might have a harder time fighting COVID-19 infection. I always tell my patients to please reach out to us because we can discuss the use of antivirals such as Paxlovid (nirmatrelvir/ritonavir), and if they are sick, then they can get remdesivir in the hospital.

I want to touch on health literacy and disparities for a moment. I have some younger patients who are Latin or Black with uncontrolled hypertension or diabetes, even at a young age, and do not realize that I can treat their cancer into remission, but if their blood glucose is in the 500 range, they could die from their diabetes. So talking with patients about their overall health is important. Survivorship issues are important, especially if patients are diagnosed at a young age. We have known for a long time that chemotherapy can create cardiac events, arrhythmias, and heart disease. Therefore, I always tell patients with metabolic syndrome to try to exercise and eat healthy. Patients should get an electrocardiogram and see an internist at least once a year to make sure their cholesterol is well controlled. I think now we are being more cognizant that many complications can happen even 10 years after cancer treatment.

Author and Disclosure Information

Jacqueline C. Barrientos, MD, MS is a hematologist-oncologist at Mount Sinai Medical Center where she also serves as Chief of Hematologic Malignancies and Director of Oncology Research. She is Adjunct Professor of Medicine at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell in New York.  

Jacqueline C. Barrientos, MD, MS, has disclosed the following relevant financial relationships:
Serve(d) as a consultant for: Beigene; AstraZeneca; Pharmacyclics/Abbvie; Merck
Received research grant from: Merck; TG Therapeutics.

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Jacqueline C. Barrientos, MD, MS is a hematologist-oncologist at Mount Sinai Medical Center where she also serves as Chief of Hematologic Malignancies and Director of Oncology Research. She is Adjunct Professor of Medicine at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell in New York.  

Jacqueline C. Barrientos, MD, MS, has disclosed the following relevant financial relationships:
Serve(d) as a consultant for: Beigene; AstraZeneca; Pharmacyclics/Abbvie; Merck
Received research grant from: Merck; TG Therapeutics.

Author and Disclosure Information

Jacqueline C. Barrientos, MD, MS is a hematologist-oncologist at Mount Sinai Medical Center where she also serves as Chief of Hematologic Malignancies and Director of Oncology Research. She is Adjunct Professor of Medicine at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell in New York.  

Jacqueline C. Barrientos, MD, MS, has disclosed the following relevant financial relationships:
Serve(d) as a consultant for: Beigene; AstraZeneca; Pharmacyclics/Abbvie; Merck
Received research grant from: Merck; TG Therapeutics.

 

What is your outlook on the role of upfront autologous stem cell transplant (ASCT) for patients with mantle cell lymphoma (MCL)?

Dr. Barrientos: Most of the data that we have for upfront ASCT for young patients in frontline therapy come from the era when we did not use rituximab, and the data have not kept up with the pace of all the recent advances. Rituximab has changed the way we approach maintenance therapy after induction therapy. No randomized controlled trial data (in regimens that incorporate rituximab and cytarabine) have demonstrated a benefit in overall survival (OS) with ASCT in the modern era.

There is a lot to consider for every patient with MCL before we start therapy or discuss upfront transplant. MCL is one of these non-Hodgkin lymphomas that unfortunately can be aggressive in some patients depending on their prognostic markers and particular clinical features of the disease. Some patients have a more indolent form, whereas others have a more aggressive presentation at the time of diagnosis. The disease is heterogeneous and will respond differently to certain regimens. For example, patients with MCL who have a high proliferation rate, blastoid morphology, multiple chromosomal aberrations, complex karyotype, and/or the presence of tumor suppressor protein P53 (TP53) mutation will likely have a more aggressive course. Fitness for transplant is also an important consideration regardless of age; that is, a patient with comorbid end-stage chronic kidney or liver disease will not be able to tolerate a transplant.

Even with optimal therapy that incorporates rituximab and cytarabine, pursuing a transplant does not necessarily benefit survival in patients with a known TP53 mutation, as these patients typically experience increased toxicity without improved OS. We know they will not respond well, and we should discuss the available data so that the patients can make a sound decision and consider participation in a clinical trial that incorporates novel agents. Another type of mutation—cyclin-dependent kinase inhibitor 2A (CDKN2A)—also has lower OS. Concurrent deletion of CDKN2A and TP53 aberration (deletion and/or mutation) are known to be associated with lower OS given their chemoresistant nature. Patients with these genetic mutations should not be offered standard ASCT, but rather they should be identified early on and prioritized to participate in clinical trials.

Importantly, the role of upfront ASCT is changing right now, based on a recent trial that was presented at the latest American Society of Hematology meeting in 2022. The TRIANGLE trial demonstrated the addition of ibrutinib (a first-generation Bruton tyrosine kinase [BTK] inhibitor) to standard chemoimmunotherapy induction and 2 years of ibrutinib maintenance can improve outcomes vs standard chemoimmunotherapy induction and ASCT alone for younger patients with MCL. However, longer follow-up is needed to fully elucidate the role of ASCT in the era of BTK inhibitors when incorporated early on into the treatment paradigm.

The TRIANGLE trial was an international, randomized 3-arm phase 3 trial (EudraCT-no. 2014-001363-12) for young (up to 65 years) fit patients with histologically confirmed, untreated, advanced stage II-IV MCL. In the control arm A, patients received an alternating R-CHOP/R-DHAP induction followed by myeloablative consolidation (ASCT). In arm A+I, ibrutinib was added to the R-CHOP cycles (560 mg day 1-19) and was applied as maintenance (continuous dosing) for 2 years. In arm I, the same induction and maintenance was applied but high-dose consolidation and ASCT was skipped. A rituximab maintenance (single doses every 2 months for up to 3 years) was allowed to be added in all study arms according to national clinical routine.

The study showed that failure-free survival at 3 years was 72% with chemotherapy alone, 86% with ibrutinib alone, and 88% with ibrutinib plus ASCT. However, the ibrutinib plus ASCT group seemed to have much more toxicity, comorbidities, and other complications from the transplant. The OS data are not mature yet, but looking at the available data, ibrutinib alone might be more beneficial to our patients— not only in terms of efficacy, but also in tolerability and response, with less toxicity over time.

To put things in perspective, we did not have good salvage therapies a decade ago. At the time ASCT was incorporated, it was a good option that allowed numerous patients to achieve a deep response with durable remission duration. Before ibrutinib was approved, the overall response rate for the best salvage therapies was not as encouraging as the initial therapy and, with each relapse, the duration of response shortened. When ibrutinib came along, the overall response rate improved significantly. But again, these patients had relapsed/refractory disease. Researchers have been investigating what would happen if we used such a drug in earlier lines of therapy. Can we get better outcomes? Can we get patients in remission longer, similar to what we have seen with ASCT, but without the ASCT?

There has never been a single modern trial that has demonstrated that transplant improves survival. Transplantation can improve progression-free survival, but not OS. For a disease for which we do not have a cure, if we can keep patients in remission with a good salvage therapy and give them a better quality of life, without subjecting them to an ASCT, then I might choose that. New targeted agents and novel therapies are in clinical development all the time, so the future is bright for patients with this diagnosis. Given the novel salvage therapies in the pipeline, we may be able to no longer recommend ASCT upfront for most patients soon.

Can you share more about the potential benefits of using salvage therapies over ASCT, and particularly any promising newer agents in the salvage therapy setting?

Dr. Barrientos: Recently we had the FDA approval of pirtobrutinib—a noncovalently bound BTK inhibitor—for patients with relapsed/refractory MCL in whom at least 2 lines of systemic therapy had failed, including another BTK inhibitor. In the trial that led to the accelerated approval, pirtobrutinib-treated patients showed an overall response rate of 50% in those who received the drug at 200 mg daily (n = 120); most of the responses were partial responses. The efficacy of other novel drugs are being studied in patients with MCL. For example, ROR1 (receptor tyrosine kinase–like orphan receptor 1) inhibitors and BTK degraders are currently in clinical trials. Chimeric antigen receptor (CAR) T-cell therapy targeting CD19 has been approved for the treatment of adult patients with relapsed or refractory MCL, and this may be an option for some patients.

Multiple novel agents might be able to salvage our patients without subjecting them to an upfront transplant. My hope is to get away from using the intense chemotherapy regimens that might cause myelosuppression, infection risk, or other toxicities, and try to stay with the novel agents. We need to do better for our patients.

Based on the data we now have, until there is a trial that demonstrates a higher OS rate with ASCT, it is hard for me to tell a patient to blindly pursue ASCT without learning more about all the available options. If you have access to a good salvage therapy, especially with all these new promising agents, a patient might be able to stay in remission without having ASCT, which can still have an increased risk of morbidity.

Are there certain patient groups that should never be considered for ASCT?

Dr. Barrientos: Younger patients with the CDKN2A gene—which represents about 22% of patients—and those who have a TP53 mutation should not be considered for a standard transplant because they have a worse outcome independent of the treatment. I would also include complex karyotype patients because of the same nature of the chromosomal aberrations. The more genetic aberrations that a patient has, the more likelihood that any chemotherapy will damage the DNA further and create a more aggressive clone. Instead, I would recommend that young patients in this category participate in a clinical trial with novel agents.

With novel therapies in the pipeline, the availability of CAR T, and now the bispecific antibodies such as blinatumomab and HexAbs coming along, the number of patients who may opt out of ASCT may increase. I have a long discussion with my patients. The more educated they are, the better it is for the patient. At the end of the day, the most important thing for me, with any therapy, is: how does the patient feel? Because if we cannot cure a patient or provide a survival advantage, I do not want to give that patient something that will decrease their quality of life. I would rather keep the patient in some sort of stable disease remission, comfortable, and having a good quality of life. That is my goal for anyone who cannot be cured. Now if it is a curable disease, like a diffuse large cell lymphoma or a Burkitt’s lymphoma, then it is a different story. But for people with MCL, a disease that you cannot cure, or chronic lymphocytic leukemia or follicular lymphoma, then it becomes a different discussion. Undetectable minimal residual disease correlates with longer remission durations, but sometimes trying to achieve that, you can actually do a lot of harm to some patients.

Are there any other conversations you have with your patients in day-to-day practice?

Dr. Barrientos: I always tell my patients to be on top of the age-appropriate cancer screening recommendations. For example, they should see a dermatologist once a year. Men should make sure that their prostate is checked. I recommend women get breast mammograms, Pap smears, and most importantly to avoid smoking—and that includes vaping. It is important to lead a healthy life to minimize the risk of secondary malignancies.

For risk of infections, I recommend to all my patients to be up to date on their vaccinations, such as pneumonia if they are older than 65, Shingrix for prevention of reactivation of varicella or chickenpox, and the flu shot once a year. I also recommend the COVID-19 vaccine even now, as our patients with blood disorders might have a harder time fighting COVID-19 infection. I always tell my patients to please reach out to us because we can discuss the use of antivirals such as Paxlovid (nirmatrelvir/ritonavir), and if they are sick, then they can get remdesivir in the hospital.

I want to touch on health literacy and disparities for a moment. I have some younger patients who are Latin or Black with uncontrolled hypertension or diabetes, even at a young age, and do not realize that I can treat their cancer into remission, but if their blood glucose is in the 500 range, they could die from their diabetes. So talking with patients about their overall health is important. Survivorship issues are important, especially if patients are diagnosed at a young age. We have known for a long time that chemotherapy can create cardiac events, arrhythmias, and heart disease. Therefore, I always tell patients with metabolic syndrome to try to exercise and eat healthy. Patients should get an electrocardiogram and see an internist at least once a year to make sure their cholesterol is well controlled. I think now we are being more cognizant that many complications can happen even 10 years after cancer treatment.

 

What is your outlook on the role of upfront autologous stem cell transplant (ASCT) for patients with mantle cell lymphoma (MCL)?

Dr. Barrientos: Most of the data that we have for upfront ASCT for young patients in frontline therapy come from the era when we did not use rituximab, and the data have not kept up with the pace of all the recent advances. Rituximab has changed the way we approach maintenance therapy after induction therapy. No randomized controlled trial data (in regimens that incorporate rituximab and cytarabine) have demonstrated a benefit in overall survival (OS) with ASCT in the modern era.

There is a lot to consider for every patient with MCL before we start therapy or discuss upfront transplant. MCL is one of these non-Hodgkin lymphomas that unfortunately can be aggressive in some patients depending on their prognostic markers and particular clinical features of the disease. Some patients have a more indolent form, whereas others have a more aggressive presentation at the time of diagnosis. The disease is heterogeneous and will respond differently to certain regimens. For example, patients with MCL who have a high proliferation rate, blastoid morphology, multiple chromosomal aberrations, complex karyotype, and/or the presence of tumor suppressor protein P53 (TP53) mutation will likely have a more aggressive course. Fitness for transplant is also an important consideration regardless of age; that is, a patient with comorbid end-stage chronic kidney or liver disease will not be able to tolerate a transplant.

Even with optimal therapy that incorporates rituximab and cytarabine, pursuing a transplant does not necessarily benefit survival in patients with a known TP53 mutation, as these patients typically experience increased toxicity without improved OS. We know they will not respond well, and we should discuss the available data so that the patients can make a sound decision and consider participation in a clinical trial that incorporates novel agents. Another type of mutation—cyclin-dependent kinase inhibitor 2A (CDKN2A)—also has lower OS. Concurrent deletion of CDKN2A and TP53 aberration (deletion and/or mutation) are known to be associated with lower OS given their chemoresistant nature. Patients with these genetic mutations should not be offered standard ASCT, but rather they should be identified early on and prioritized to participate in clinical trials.

Importantly, the role of upfront ASCT is changing right now, based on a recent trial that was presented at the latest American Society of Hematology meeting in 2022. The TRIANGLE trial demonstrated the addition of ibrutinib (a first-generation Bruton tyrosine kinase [BTK] inhibitor) to standard chemoimmunotherapy induction and 2 years of ibrutinib maintenance can improve outcomes vs standard chemoimmunotherapy induction and ASCT alone for younger patients with MCL. However, longer follow-up is needed to fully elucidate the role of ASCT in the era of BTK inhibitors when incorporated early on into the treatment paradigm.

The TRIANGLE trial was an international, randomized 3-arm phase 3 trial (EudraCT-no. 2014-001363-12) for young (up to 65 years) fit patients with histologically confirmed, untreated, advanced stage II-IV MCL. In the control arm A, patients received an alternating R-CHOP/R-DHAP induction followed by myeloablative consolidation (ASCT). In arm A+I, ibrutinib was added to the R-CHOP cycles (560 mg day 1-19) and was applied as maintenance (continuous dosing) for 2 years. In arm I, the same induction and maintenance was applied but high-dose consolidation and ASCT was skipped. A rituximab maintenance (single doses every 2 months for up to 3 years) was allowed to be added in all study arms according to national clinical routine.

The study showed that failure-free survival at 3 years was 72% with chemotherapy alone, 86% with ibrutinib alone, and 88% with ibrutinib plus ASCT. However, the ibrutinib plus ASCT group seemed to have much more toxicity, comorbidities, and other complications from the transplant. The OS data are not mature yet, but looking at the available data, ibrutinib alone might be more beneficial to our patients— not only in terms of efficacy, but also in tolerability and response, with less toxicity over time.

To put things in perspective, we did not have good salvage therapies a decade ago. At the time ASCT was incorporated, it was a good option that allowed numerous patients to achieve a deep response with durable remission duration. Before ibrutinib was approved, the overall response rate for the best salvage therapies was not as encouraging as the initial therapy and, with each relapse, the duration of response shortened. When ibrutinib came along, the overall response rate improved significantly. But again, these patients had relapsed/refractory disease. Researchers have been investigating what would happen if we used such a drug in earlier lines of therapy. Can we get better outcomes? Can we get patients in remission longer, similar to what we have seen with ASCT, but without the ASCT?

There has never been a single modern trial that has demonstrated that transplant improves survival. Transplantation can improve progression-free survival, but not OS. For a disease for which we do not have a cure, if we can keep patients in remission with a good salvage therapy and give them a better quality of life, without subjecting them to an ASCT, then I might choose that. New targeted agents and novel therapies are in clinical development all the time, so the future is bright for patients with this diagnosis. Given the novel salvage therapies in the pipeline, we may be able to no longer recommend ASCT upfront for most patients soon.

Can you share more about the potential benefits of using salvage therapies over ASCT, and particularly any promising newer agents in the salvage therapy setting?

Dr. Barrientos: Recently we had the FDA approval of pirtobrutinib—a noncovalently bound BTK inhibitor—for patients with relapsed/refractory MCL in whom at least 2 lines of systemic therapy had failed, including another BTK inhibitor. In the trial that led to the accelerated approval, pirtobrutinib-treated patients showed an overall response rate of 50% in those who received the drug at 200 mg daily (n = 120); most of the responses were partial responses. The efficacy of other novel drugs are being studied in patients with MCL. For example, ROR1 (receptor tyrosine kinase–like orphan receptor 1) inhibitors and BTK degraders are currently in clinical trials. Chimeric antigen receptor (CAR) T-cell therapy targeting CD19 has been approved for the treatment of adult patients with relapsed or refractory MCL, and this may be an option for some patients.

Multiple novel agents might be able to salvage our patients without subjecting them to an upfront transplant. My hope is to get away from using the intense chemotherapy regimens that might cause myelosuppression, infection risk, or other toxicities, and try to stay with the novel agents. We need to do better for our patients.

Based on the data we now have, until there is a trial that demonstrates a higher OS rate with ASCT, it is hard for me to tell a patient to blindly pursue ASCT without learning more about all the available options. If you have access to a good salvage therapy, especially with all these new promising agents, a patient might be able to stay in remission without having ASCT, which can still have an increased risk of morbidity.

Are there certain patient groups that should never be considered for ASCT?

Dr. Barrientos: Younger patients with the CDKN2A gene—which represents about 22% of patients—and those who have a TP53 mutation should not be considered for a standard transplant because they have a worse outcome independent of the treatment. I would also include complex karyotype patients because of the same nature of the chromosomal aberrations. The more genetic aberrations that a patient has, the more likelihood that any chemotherapy will damage the DNA further and create a more aggressive clone. Instead, I would recommend that young patients in this category participate in a clinical trial with novel agents.

With novel therapies in the pipeline, the availability of CAR T, and now the bispecific antibodies such as blinatumomab and HexAbs coming along, the number of patients who may opt out of ASCT may increase. I have a long discussion with my patients. The more educated they are, the better it is for the patient. At the end of the day, the most important thing for me, with any therapy, is: how does the patient feel? Because if we cannot cure a patient or provide a survival advantage, I do not want to give that patient something that will decrease their quality of life. I would rather keep the patient in some sort of stable disease remission, comfortable, and having a good quality of life. That is my goal for anyone who cannot be cured. Now if it is a curable disease, like a diffuse large cell lymphoma or a Burkitt’s lymphoma, then it is a different story. But for people with MCL, a disease that you cannot cure, or chronic lymphocytic leukemia or follicular lymphoma, then it becomes a different discussion. Undetectable minimal residual disease correlates with longer remission durations, but sometimes trying to achieve that, you can actually do a lot of harm to some patients.

Are there any other conversations you have with your patients in day-to-day practice?

Dr. Barrientos: I always tell my patients to be on top of the age-appropriate cancer screening recommendations. For example, they should see a dermatologist once a year. Men should make sure that their prostate is checked. I recommend women get breast mammograms, Pap smears, and most importantly to avoid smoking—and that includes vaping. It is important to lead a healthy life to minimize the risk of secondary malignancies.

For risk of infections, I recommend to all my patients to be up to date on their vaccinations, such as pneumonia if they are older than 65, Shingrix for prevention of reactivation of varicella or chickenpox, and the flu shot once a year. I also recommend the COVID-19 vaccine even now, as our patients with blood disorders might have a harder time fighting COVID-19 infection. I always tell my patients to please reach out to us because we can discuss the use of antivirals such as Paxlovid (nirmatrelvir/ritonavir), and if they are sick, then they can get remdesivir in the hospital.

I want to touch on health literacy and disparities for a moment. I have some younger patients who are Latin or Black with uncontrolled hypertension or diabetes, even at a young age, and do not realize that I can treat their cancer into remission, but if their blood glucose is in the 500 range, they could die from their diabetes. So talking with patients about their overall health is important. Survivorship issues are important, especially if patients are diagnosed at a young age. We have known for a long time that chemotherapy can create cardiac events, arrhythmias, and heart disease. Therefore, I always tell patients with metabolic syndrome to try to exercise and eat healthy. Patients should get an electrocardiogram and see an internist at least once a year to make sure their cholesterol is well controlled. I think now we are being more cognizant that many complications can happen even 10 years after cancer treatment.

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Standard first‐line chemotherapies for indolent B‐cell lymphoma impose varying risks for a second cancer

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Key clinical point: The risk for a second primary malignancy (SPM) was higher in patients with indolent B‐cell lymphoma (iBCL) treated with bendamustine/rituximab (BR) vs rituximab monotherapy and rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (RCHOP) or rituximab, cyclophosphamide, vincristine, and prednisone (RCVP) or rituximab, pirarubicin, cyclophosphamide, vincristine, and prednisolone (RTHPCOP).

Major finding: The cumulative incidence of SPM was significantly higher among patients receiving BR vs rituximab monotherapy (P < .01) or RCHOP/RCVP/RTHPCOP (P < .0001). The 5‐year cumulative incidence rates with BR, rituximab monotherapy, and RCHOP/RCVP/RTHPCOP were 18.1%, 12.5%, and 12.9%, respectively.

Study details: This retrospective observational study included 5234 adult patients with iBCL who received rituximab monotherapy (n = 780), RCHOP/RCVP/RTHPCOP (n = 2298), or BR (n = 2156).

Disclosures: This study was supported by the Japan Society for the Promotion of Science. Y Muraki declared receiving a lecture honorarium from Pfizer Japan, Inc.

 

Source: Dote S et al. Risk of a second cancer and infection in patients with indolent B-cell lymphoma exposed to first-line bendamustine plus rituximab: A retrospective analysis of an administrative claims database. Hematol Oncol. 2023 (Feb 15). Doi: 10.1002/hon.3128.

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Key clinical point: The risk for a second primary malignancy (SPM) was higher in patients with indolent B‐cell lymphoma (iBCL) treated with bendamustine/rituximab (BR) vs rituximab monotherapy and rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (RCHOP) or rituximab, cyclophosphamide, vincristine, and prednisone (RCVP) or rituximab, pirarubicin, cyclophosphamide, vincristine, and prednisolone (RTHPCOP).

Major finding: The cumulative incidence of SPM was significantly higher among patients receiving BR vs rituximab monotherapy (P < .01) or RCHOP/RCVP/RTHPCOP (P < .0001). The 5‐year cumulative incidence rates with BR, rituximab monotherapy, and RCHOP/RCVP/RTHPCOP were 18.1%, 12.5%, and 12.9%, respectively.

Study details: This retrospective observational study included 5234 adult patients with iBCL who received rituximab monotherapy (n = 780), RCHOP/RCVP/RTHPCOP (n = 2298), or BR (n = 2156).

Disclosures: This study was supported by the Japan Society for the Promotion of Science. Y Muraki declared receiving a lecture honorarium from Pfizer Japan, Inc.

 

Source: Dote S et al. Risk of a second cancer and infection in patients with indolent B-cell lymphoma exposed to first-line bendamustine plus rituximab: A retrospective analysis of an administrative claims database. Hematol Oncol. 2023 (Feb 15). Doi: 10.1002/hon.3128.

Key clinical point: The risk for a second primary malignancy (SPM) was higher in patients with indolent B‐cell lymphoma (iBCL) treated with bendamustine/rituximab (BR) vs rituximab monotherapy and rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (RCHOP) or rituximab, cyclophosphamide, vincristine, and prednisone (RCVP) or rituximab, pirarubicin, cyclophosphamide, vincristine, and prednisolone (RTHPCOP).

Major finding: The cumulative incidence of SPM was significantly higher among patients receiving BR vs rituximab monotherapy (P < .01) or RCHOP/RCVP/RTHPCOP (P < .0001). The 5‐year cumulative incidence rates with BR, rituximab monotherapy, and RCHOP/RCVP/RTHPCOP were 18.1%, 12.5%, and 12.9%, respectively.

Study details: This retrospective observational study included 5234 adult patients with iBCL who received rituximab monotherapy (n = 780), RCHOP/RCVP/RTHPCOP (n = 2298), or BR (n = 2156).

Disclosures: This study was supported by the Japan Society for the Promotion of Science. Y Muraki declared receiving a lecture honorarium from Pfizer Japan, Inc.

 

Source: Dote S et al. Risk of a second cancer and infection in patients with indolent B-cell lymphoma exposed to first-line bendamustine plus rituximab: A retrospective analysis of an administrative claims database. Hematol Oncol. 2023 (Feb 15). Doi: 10.1002/hon.3128.

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High-dose total body irradiation followed by stem cell transplantation offers long-term survival in MCL

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Key clinical point: Multimodal treatment comprising total body irradiation (TBI), high-dose chemotherapy, and autologous stem cell transplantation (autoSCT) offers long-term survival in patients with mantle cell lymphoma (MCL).

Major finding: The median overall survival of patients who underwent TBI and autoSCT was 11.4 years, whereas that of patients who underwent TBI and allogenic stem cell transplantation (alloSCT) was 3.25 years. Compared with the whole cohort, patients receiving autoSCT presented a better overall survival rate (50.0% vs 57.9%) after reaching a plateau at 6.8 years.

Study details: Findings are from a single-center retrospective study including 22 patients with advanced MCL who underwent TBI before autoSCT (n = 19) or alloSCT (n = 3).

Disclosures: This study received no external funding. The authors declared no conflict on interests.

 

Source: Kröger K et al. Long-term survival of patients with mantle cell lymphoma after total body irradiation, high-dose chemotherapy and stem cell transplantation: A monocenter study. Cancers (Basel). 2023;15(3):983 (Feb 3). Doi: 10.3390/cancers15030983

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Key clinical point: Multimodal treatment comprising total body irradiation (TBI), high-dose chemotherapy, and autologous stem cell transplantation (autoSCT) offers long-term survival in patients with mantle cell lymphoma (MCL).

Major finding: The median overall survival of patients who underwent TBI and autoSCT was 11.4 years, whereas that of patients who underwent TBI and allogenic stem cell transplantation (alloSCT) was 3.25 years. Compared with the whole cohort, patients receiving autoSCT presented a better overall survival rate (50.0% vs 57.9%) after reaching a plateau at 6.8 years.

Study details: Findings are from a single-center retrospective study including 22 patients with advanced MCL who underwent TBI before autoSCT (n = 19) or alloSCT (n = 3).

Disclosures: This study received no external funding. The authors declared no conflict on interests.

 

Source: Kröger K et al. Long-term survival of patients with mantle cell lymphoma after total body irradiation, high-dose chemotherapy and stem cell transplantation: A monocenter study. Cancers (Basel). 2023;15(3):983 (Feb 3). Doi: 10.3390/cancers15030983

Key clinical point: Multimodal treatment comprising total body irradiation (TBI), high-dose chemotherapy, and autologous stem cell transplantation (autoSCT) offers long-term survival in patients with mantle cell lymphoma (MCL).

Major finding: The median overall survival of patients who underwent TBI and autoSCT was 11.4 years, whereas that of patients who underwent TBI and allogenic stem cell transplantation (alloSCT) was 3.25 years. Compared with the whole cohort, patients receiving autoSCT presented a better overall survival rate (50.0% vs 57.9%) after reaching a plateau at 6.8 years.

Study details: Findings are from a single-center retrospective study including 22 patients with advanced MCL who underwent TBI before autoSCT (n = 19) or alloSCT (n = 3).

Disclosures: This study received no external funding. The authors declared no conflict on interests.

 

Source: Kröger K et al. Long-term survival of patients with mantle cell lymphoma after total body irradiation, high-dose chemotherapy and stem cell transplantation: A monocenter study. Cancers (Basel). 2023;15(3):983 (Feb 3). Doi: 10.3390/cancers15030983

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A complete assessment of TP53 aberrations recommended before initiating ibrutinib in CLL

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A complete assessment of TP53 aberrations recommended before initiating ibrutinib in CLL

Key clinical point: Only the copresence of TP53 deletion (del17p) and mutations and not a single aberration has a negative prognostic impact in patients with chronic lymphocytic leukemia (CLL) receiving ibrutinib treatment.

Major finding: Only patients with concomitant TP53 mutations and del17p had significantly shorter overall survival (OS; P = .0073) and progression-free survival (PFS; P = .0037) than those with no TP53 aberration; no difference in OS or PFS was observed in patients with single aberration. TP53 mutation and del17p copresence was an independent predictor for short OS and PFS (adjusted hazard ratio 2.27; P = .0077).

Study details: This multicenter retrospective study included 229 patients with CLL treated with ibrutinib who were assayed for TP53 mutation and del17p in the same blood sample that was collected within 6 months before initiating ibrutinib.

Disclosures: This study was supported in part by the Italian Ministry of Health “Progetto Ricerca Finalizzata” and others. The authors declared no conflicts of interest.

 

Source: Bomben R et al. Clinical impact of TP53 disruption in chronic lymphocytic leukemia patients treated with ibrutinib: A campus CLL study. Leukemia. 2023 (Feb 18). Doi: 10.1038/s41375-023-01845-9

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Key clinical point: Only the copresence of TP53 deletion (del17p) and mutations and not a single aberration has a negative prognostic impact in patients with chronic lymphocytic leukemia (CLL) receiving ibrutinib treatment.

Major finding: Only patients with concomitant TP53 mutations and del17p had significantly shorter overall survival (OS; P = .0073) and progression-free survival (PFS; P = .0037) than those with no TP53 aberration; no difference in OS or PFS was observed in patients with single aberration. TP53 mutation and del17p copresence was an independent predictor for short OS and PFS (adjusted hazard ratio 2.27; P = .0077).

Study details: This multicenter retrospective study included 229 patients with CLL treated with ibrutinib who were assayed for TP53 mutation and del17p in the same blood sample that was collected within 6 months before initiating ibrutinib.

Disclosures: This study was supported in part by the Italian Ministry of Health “Progetto Ricerca Finalizzata” and others. The authors declared no conflicts of interest.

 

Source: Bomben R et al. Clinical impact of TP53 disruption in chronic lymphocytic leukemia patients treated with ibrutinib: A campus CLL study. Leukemia. 2023 (Feb 18). Doi: 10.1038/s41375-023-01845-9

Key clinical point: Only the copresence of TP53 deletion (del17p) and mutations and not a single aberration has a negative prognostic impact in patients with chronic lymphocytic leukemia (CLL) receiving ibrutinib treatment.

Major finding: Only patients with concomitant TP53 mutations and del17p had significantly shorter overall survival (OS; P = .0073) and progression-free survival (PFS; P = .0037) than those with no TP53 aberration; no difference in OS or PFS was observed in patients with single aberration. TP53 mutation and del17p copresence was an independent predictor for short OS and PFS (adjusted hazard ratio 2.27; P = .0077).

Study details: This multicenter retrospective study included 229 patients with CLL treated with ibrutinib who were assayed for TP53 mutation and del17p in the same blood sample that was collected within 6 months before initiating ibrutinib.

Disclosures: This study was supported in part by the Italian Ministry of Health “Progetto Ricerca Finalizzata” and others. The authors declared no conflicts of interest.

 

Source: Bomben R et al. Clinical impact of TP53 disruption in chronic lymphocytic leukemia patients treated with ibrutinib: A campus CLL study. Leukemia. 2023 (Feb 18). Doi: 10.1038/s41375-023-01845-9

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Grade 3B FL prognostically similar to grade 3A FL but distinct from DLBCL

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Key clinical point: Grade 3B follicular lymphoma (G3BFL) has similar survival outcomes to grade 3A FL (G3AFL) but a superior prognosis than diffuse large B-cell lymphoma (DLBCL) in immunotherapy-treated patients.

Major finding: At a median follow-up of 5 years, the G3BFL vs DLBCL group had a significantly longer progression-free survival (PFS; hazard ratio [HR] 1.73; P = .001) and overall survival (OS; HR 2.19; P ≤ .001), whereas PFS (HR 1.04; P = .81) and OS (HR 1.04; P = .84) were similar between the G3BFL and G3AFL groups.

Study details: This multicenter study analyzed the data of 157 patients with G3BFL, 302 patients with G3AFL, and 548 patients with DLBCL treated with rituximab/obinutuzumab, cyclophosphamide, doxorubicin, vincristine, and prednisolone-like chemotherapy with or without radiotherapy or bendamustine-rituximab.

Disclosures: The study did not receive any funding. Some authors reported ties with various organizations.

 

Source: Barraclough A et al. Outcomes in grade 3B follicular lymphoma: an international study led by the Australasian Lymphoma Alliance. Haematologica. 2023 (Feb 23). Doi: 10.3324/haematol.2022.281375

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Key clinical point: Grade 3B follicular lymphoma (G3BFL) has similar survival outcomes to grade 3A FL (G3AFL) but a superior prognosis than diffuse large B-cell lymphoma (DLBCL) in immunotherapy-treated patients.

Major finding: At a median follow-up of 5 years, the G3BFL vs DLBCL group had a significantly longer progression-free survival (PFS; hazard ratio [HR] 1.73; P = .001) and overall survival (OS; HR 2.19; P ≤ .001), whereas PFS (HR 1.04; P = .81) and OS (HR 1.04; P = .84) were similar between the G3BFL and G3AFL groups.

Study details: This multicenter study analyzed the data of 157 patients with G3BFL, 302 patients with G3AFL, and 548 patients with DLBCL treated with rituximab/obinutuzumab, cyclophosphamide, doxorubicin, vincristine, and prednisolone-like chemotherapy with or without radiotherapy or bendamustine-rituximab.

Disclosures: The study did not receive any funding. Some authors reported ties with various organizations.

 

Source: Barraclough A et al. Outcomes in grade 3B follicular lymphoma: an international study led by the Australasian Lymphoma Alliance. Haematologica. 2023 (Feb 23). Doi: 10.3324/haematol.2022.281375

Key clinical point: Grade 3B follicular lymphoma (G3BFL) has similar survival outcomes to grade 3A FL (G3AFL) but a superior prognosis than diffuse large B-cell lymphoma (DLBCL) in immunotherapy-treated patients.

Major finding: At a median follow-up of 5 years, the G3BFL vs DLBCL group had a significantly longer progression-free survival (PFS; hazard ratio [HR] 1.73; P = .001) and overall survival (OS; HR 2.19; P ≤ .001), whereas PFS (HR 1.04; P = .81) and OS (HR 1.04; P = .84) were similar between the G3BFL and G3AFL groups.

Study details: This multicenter study analyzed the data of 157 patients with G3BFL, 302 patients with G3AFL, and 548 patients with DLBCL treated with rituximab/obinutuzumab, cyclophosphamide, doxorubicin, vincristine, and prednisolone-like chemotherapy with or without radiotherapy or bendamustine-rituximab.

Disclosures: The study did not receive any funding. Some authors reported ties with various organizations.

 

Source: Barraclough A et al. Outcomes in grade 3B follicular lymphoma: an international study led by the Australasian Lymphoma Alliance. Haematologica. 2023 (Feb 23). Doi: 10.3324/haematol.2022.281375

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No benefit of adding ibrutinib to chemoimmunotherapy in relapsed/refractory mature B-cell non-Hodgkin lymphoma

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Key clinical point: Addition of ibrutinib to rituximab, ifosfamide, carboplatin, and etoposide (RICE) or rituximab, vincristine, ifosfamide, carboplatin, idarubicin, and dexamethasone (RVICI) provided no survival benefit in children and young adults with relapsed or refractory mature B-cell non-Hodgkin lymphoma (B-NHL).

Major finding: Patients receiving ibrutinib plus RICE/RVICI vs RICE/RVICI alone had similar median event-free survival (6.1 vs 7.0 months; hazard ratio [HR] 0.9; P = .387) and median overall survival (14.1 vs 11.1 months; HR 0.9; P = .789). All patients experienced grade ≥3 treatment-emergent adverse events.

Study details: Findings represent the final results of SPARKLE trial Part 2 that included 51 patients aged 1-30 years with relapsed or refractory mature B-NHL who were randomly assigned to receive ibrutinib plus RICE/RVICI (n = 35) or RICE/RVICI alone (n = 16).

Disclosures: This study was funded by Janssen Research and Development. Some authors reported ties with various organizations, including Janssen. Six authors declared being employees of Janssen or holding stocks in Johnson & Johnson.

Source: Burke GAA et al. Ibrutinib plus RICE or RVICI for relapsed/refractory mature B-cell non-Hodgkin lymphoma in children and young adults: SPARKLE trial. Blood Adv. 2023;7(4):602-610 (Feb 20). Doi: 10.1182/bloodadvances.2022008802

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Key clinical point: Addition of ibrutinib to rituximab, ifosfamide, carboplatin, and etoposide (RICE) or rituximab, vincristine, ifosfamide, carboplatin, idarubicin, and dexamethasone (RVICI) provided no survival benefit in children and young adults with relapsed or refractory mature B-cell non-Hodgkin lymphoma (B-NHL).

Major finding: Patients receiving ibrutinib plus RICE/RVICI vs RICE/RVICI alone had similar median event-free survival (6.1 vs 7.0 months; hazard ratio [HR] 0.9; P = .387) and median overall survival (14.1 vs 11.1 months; HR 0.9; P = .789). All patients experienced grade ≥3 treatment-emergent adverse events.

Study details: Findings represent the final results of SPARKLE trial Part 2 that included 51 patients aged 1-30 years with relapsed or refractory mature B-NHL who were randomly assigned to receive ibrutinib plus RICE/RVICI (n = 35) or RICE/RVICI alone (n = 16).

Disclosures: This study was funded by Janssen Research and Development. Some authors reported ties with various organizations, including Janssen. Six authors declared being employees of Janssen or holding stocks in Johnson & Johnson.

Source: Burke GAA et al. Ibrutinib plus RICE or RVICI for relapsed/refractory mature B-cell non-Hodgkin lymphoma in children and young adults: SPARKLE trial. Blood Adv. 2023;7(4):602-610 (Feb 20). Doi: 10.1182/bloodadvances.2022008802

Key clinical point: Addition of ibrutinib to rituximab, ifosfamide, carboplatin, and etoposide (RICE) or rituximab, vincristine, ifosfamide, carboplatin, idarubicin, and dexamethasone (RVICI) provided no survival benefit in children and young adults with relapsed or refractory mature B-cell non-Hodgkin lymphoma (B-NHL).

Major finding: Patients receiving ibrutinib plus RICE/RVICI vs RICE/RVICI alone had similar median event-free survival (6.1 vs 7.0 months; hazard ratio [HR] 0.9; P = .387) and median overall survival (14.1 vs 11.1 months; HR 0.9; P = .789). All patients experienced grade ≥3 treatment-emergent adverse events.

Study details: Findings represent the final results of SPARKLE trial Part 2 that included 51 patients aged 1-30 years with relapsed or refractory mature B-NHL who were randomly assigned to receive ibrutinib plus RICE/RVICI (n = 35) or RICE/RVICI alone (n = 16).

Disclosures: This study was funded by Janssen Research and Development. Some authors reported ties with various organizations, including Janssen. Six authors declared being employees of Janssen or holding stocks in Johnson & Johnson.

Source: Burke GAA et al. Ibrutinib plus RICE or RVICI for relapsed/refractory mature B-cell non-Hodgkin lymphoma in children and young adults: SPARKLE trial. Blood Adv. 2023;7(4):602-610 (Feb 20). Doi: 10.1182/bloodadvances.2022008802

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Zanubrutinib elicits favorable long-term responses in relapsed or refractory CLL or SLL

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Key clinical point: Long-term zanubrutinib monotherapy continued to yield high response and survival rates in patients with relapsed or refractory chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) without compromising safety.

Major finding: At a median follow-up of 34 months, the overall response rate was 87.9% (95% CI 79.4%-93.8%). The median progression-free survival (PFS) or overall survival (OS) was not reached; the estimated PFS event-free and OS rates at 30 months were 75.7% (95% CI 65.2%-83.4%) and 88.6% (95% CI 79.8%-93.7%), respectively. No new safety signals were identified.

Study details: This long-term follow-up analysis of a phase 2 study included 91 patients with CLL/SLL who relapsed after or were refractory to ≥1 prior line of therapy and received 160 mg oral zanubrutinib twice daily.

Disclosures: The phase 2 study was sponsored by BeiGene (Beijing) Co., Ltd., China, and BeiGene USA, Inc., USA. Some authors declared being employees of and holding stocks in BeiGene.

 

Source: Xu W et al. Zanubrutinib in patients with relapsed/refractory chronic lymphocytic leukemia/small lymphocytic lymphoma: Final results and correlative analysis of lymphocytosis. Leuk Lymphoma. 2023;1-5 (Feb 17). Doi: 10.1080/10428194.2022.2164692

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Key clinical point: Long-term zanubrutinib monotherapy continued to yield high response and survival rates in patients with relapsed or refractory chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) without compromising safety.

Major finding: At a median follow-up of 34 months, the overall response rate was 87.9% (95% CI 79.4%-93.8%). The median progression-free survival (PFS) or overall survival (OS) was not reached; the estimated PFS event-free and OS rates at 30 months were 75.7% (95% CI 65.2%-83.4%) and 88.6% (95% CI 79.8%-93.7%), respectively. No new safety signals were identified.

Study details: This long-term follow-up analysis of a phase 2 study included 91 patients with CLL/SLL who relapsed after or were refractory to ≥1 prior line of therapy and received 160 mg oral zanubrutinib twice daily.

Disclosures: The phase 2 study was sponsored by BeiGene (Beijing) Co., Ltd., China, and BeiGene USA, Inc., USA. Some authors declared being employees of and holding stocks in BeiGene.

 

Source: Xu W et al. Zanubrutinib in patients with relapsed/refractory chronic lymphocytic leukemia/small lymphocytic lymphoma: Final results and correlative analysis of lymphocytosis. Leuk Lymphoma. 2023;1-5 (Feb 17). Doi: 10.1080/10428194.2022.2164692

Key clinical point: Long-term zanubrutinib monotherapy continued to yield high response and survival rates in patients with relapsed or refractory chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) without compromising safety.

Major finding: At a median follow-up of 34 months, the overall response rate was 87.9% (95% CI 79.4%-93.8%). The median progression-free survival (PFS) or overall survival (OS) was not reached; the estimated PFS event-free and OS rates at 30 months were 75.7% (95% CI 65.2%-83.4%) and 88.6% (95% CI 79.8%-93.7%), respectively. No new safety signals were identified.

Study details: This long-term follow-up analysis of a phase 2 study included 91 patients with CLL/SLL who relapsed after or were refractory to ≥1 prior line of therapy and received 160 mg oral zanubrutinib twice daily.

Disclosures: The phase 2 study was sponsored by BeiGene (Beijing) Co., Ltd., China, and BeiGene USA, Inc., USA. Some authors declared being employees of and holding stocks in BeiGene.

 

Source: Xu W et al. Zanubrutinib in patients with relapsed/refractory chronic lymphocytic leukemia/small lymphocytic lymphoma: Final results and correlative analysis of lymphocytosis. Leuk Lymphoma. 2023;1-5 (Feb 17). Doi: 10.1080/10428194.2022.2164692

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Chronic lymphocytic leukemia: A risk factor for poor outcomes in patients hospitalized with immune thrombocytopenia

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Key clinical point: Patients hospitalized with immune thrombocytopenia (ITP) and concomitant chronic lymphocytic leukemia (CLL) have a greater risk for death, require more blood products, and have poorer hospitalization outcomes compared with those with ITP without CLL.

Major finding: The risks for all-cause mortality (adjusted odds ratio [aOR] 1.28), gastrointestinal bleeding (aOR 1.19), packed red blood cell transfusion (aOR 1.79), splenectomy (aOR 1.30), and platelet transfusion (aOR, 1.49) were higher in patients with ITP and CLL vs those with ITP without CLL (all P < .01).

Study details: The data come from a retrospective study including patients hospitalized for ITP who did (n = 15,672) and did not (n = 646,499) have concurrent CLL.

Disclosures: This study did not report the source of funding. Some authors declared receiving research grants or consulting fees from various sources.

 

Source: Ammad Ud Din M et al. Risks and outcomes of hospitalizations in patients with chronic lymphocytic leukemia admitted with immune thrombocytopenia: An analysis of the National Inpatient Sample Database. Ann Hematol. 2023;102(4):889-895 (Feb 13). Doi: 10.1007/s00277-023-05133-5

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Key clinical point: Patients hospitalized with immune thrombocytopenia (ITP) and concomitant chronic lymphocytic leukemia (CLL) have a greater risk for death, require more blood products, and have poorer hospitalization outcomes compared with those with ITP without CLL.

Major finding: The risks for all-cause mortality (adjusted odds ratio [aOR] 1.28), gastrointestinal bleeding (aOR 1.19), packed red blood cell transfusion (aOR 1.79), splenectomy (aOR 1.30), and platelet transfusion (aOR, 1.49) were higher in patients with ITP and CLL vs those with ITP without CLL (all P < .01).

Study details: The data come from a retrospective study including patients hospitalized for ITP who did (n = 15,672) and did not (n = 646,499) have concurrent CLL.

Disclosures: This study did not report the source of funding. Some authors declared receiving research grants or consulting fees from various sources.

 

Source: Ammad Ud Din M et al. Risks and outcomes of hospitalizations in patients with chronic lymphocytic leukemia admitted with immune thrombocytopenia: An analysis of the National Inpatient Sample Database. Ann Hematol. 2023;102(4):889-895 (Feb 13). Doi: 10.1007/s00277-023-05133-5

Key clinical point: Patients hospitalized with immune thrombocytopenia (ITP) and concomitant chronic lymphocytic leukemia (CLL) have a greater risk for death, require more blood products, and have poorer hospitalization outcomes compared with those with ITP without CLL.

Major finding: The risks for all-cause mortality (adjusted odds ratio [aOR] 1.28), gastrointestinal bleeding (aOR 1.19), packed red blood cell transfusion (aOR 1.79), splenectomy (aOR 1.30), and platelet transfusion (aOR, 1.49) were higher in patients with ITP and CLL vs those with ITP without CLL (all P < .01).

Study details: The data come from a retrospective study including patients hospitalized for ITP who did (n = 15,672) and did not (n = 646,499) have concurrent CLL.

Disclosures: This study did not report the source of funding. Some authors declared receiving research grants or consulting fees from various sources.

 

Source: Ammad Ud Din M et al. Risks and outcomes of hospitalizations in patients with chronic lymphocytic leukemia admitted with immune thrombocytopenia: An analysis of the National Inpatient Sample Database. Ann Hematol. 2023;102(4):889-895 (Feb 13). Doi: 10.1007/s00277-023-05133-5

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Long-term benefits of axicabtagene ciloleucel in refractory large B-cell lymphoma

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Key clinical point: Axicabtagene ciloleucel (axi-cel) led to a durable response and long-term survival in patients with refractory large B-cell lymphoma (LBCL), with no new safety signals.

Major finding: At a median follow-up of 63.1 months from infusion, the objective and complete response rates were 83% (95% CI 74%-90%) and 58% (95% CI 48%-68%), respectively. The median overall survival (OS) was 25.8 (95% CI 12.8-not estimable) months, and the 5-year OS rate was 42.6% (95% CI 32.8%-51.9%). No new treatment-related adverse events were observed.

Study details: This 5-year follow-up analysis of the ZUMA-1 study phase 2 included 101 adult patients with refractory LBCL (diffuse large B-cell lymphoma, primary mediastinal B-cell lymphoma, and transformed follicular lymphoma) who received lymphodepleting chemotherapy followed by axi-cel infusion.

Disclosures: This study was funded by Kite, a Gilead Company. Some authors reported ties with various organizations, including Kite. Seven authors declared being former or current employees of or holding stocks or having other ownership interests in Kite.

 

Source: Neelapu SS et al. 5-Year follow-up supports curative potential of axicabtagene ciloleucel in refractory large B-cell lymphoma (ZUMA-1). Blood. 2023 (Feb 23). Doi: 10.1182/blood.2022018893

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Key clinical point: Axicabtagene ciloleucel (axi-cel) led to a durable response and long-term survival in patients with refractory large B-cell lymphoma (LBCL), with no new safety signals.

Major finding: At a median follow-up of 63.1 months from infusion, the objective and complete response rates were 83% (95% CI 74%-90%) and 58% (95% CI 48%-68%), respectively. The median overall survival (OS) was 25.8 (95% CI 12.8-not estimable) months, and the 5-year OS rate was 42.6% (95% CI 32.8%-51.9%). No new treatment-related adverse events were observed.

Study details: This 5-year follow-up analysis of the ZUMA-1 study phase 2 included 101 adult patients with refractory LBCL (diffuse large B-cell lymphoma, primary mediastinal B-cell lymphoma, and transformed follicular lymphoma) who received lymphodepleting chemotherapy followed by axi-cel infusion.

Disclosures: This study was funded by Kite, a Gilead Company. Some authors reported ties with various organizations, including Kite. Seven authors declared being former or current employees of or holding stocks or having other ownership interests in Kite.

 

Source: Neelapu SS et al. 5-Year follow-up supports curative potential of axicabtagene ciloleucel in refractory large B-cell lymphoma (ZUMA-1). Blood. 2023 (Feb 23). Doi: 10.1182/blood.2022018893

Key clinical point: Axicabtagene ciloleucel (axi-cel) led to a durable response and long-term survival in patients with refractory large B-cell lymphoma (LBCL), with no new safety signals.

Major finding: At a median follow-up of 63.1 months from infusion, the objective and complete response rates were 83% (95% CI 74%-90%) and 58% (95% CI 48%-68%), respectively. The median overall survival (OS) was 25.8 (95% CI 12.8-not estimable) months, and the 5-year OS rate was 42.6% (95% CI 32.8%-51.9%). No new treatment-related adverse events were observed.

Study details: This 5-year follow-up analysis of the ZUMA-1 study phase 2 included 101 adult patients with refractory LBCL (diffuse large B-cell lymphoma, primary mediastinal B-cell lymphoma, and transformed follicular lymphoma) who received lymphodepleting chemotherapy followed by axi-cel infusion.

Disclosures: This study was funded by Kite, a Gilead Company. Some authors reported ties with various organizations, including Kite. Seven authors declared being former or current employees of or holding stocks or having other ownership interests in Kite.

 

Source: Neelapu SS et al. 5-Year follow-up supports curative potential of axicabtagene ciloleucel in refractory large B-cell lymphoma (ZUMA-1). Blood. 2023 (Feb 23). Doi: 10.1182/blood.2022018893

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Venetoclax may bridge to immunotherapy in relapsed/refractory mantle cell lymphoma

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Key clinical point: Venetoclax resulted in a good overall response rate (ORR) but short progression-free survival (PFS) in high-risk and heavily pretreated patients with relapsed/refractory mantle cell lymphoma (MCL).

Major finding: At a median follow-up of 16.4 months, patients receiving venetoclax without or with other agents had a median PFS and overall survival of 3.7 (95% CI 2.3-5.6) months and 12.5 (95% CI,6.2-28.2) months, respectively, and an ORR of 40%.

Study details: The data come from a multicenter retrospective study including 81 adult patients with relapsed/refractory MCL, most being heavily pretreated (median of three prior treatments) and having high-risk features including high Ki-67 and TP53 alterations, who received venetoclax without (n = 50) or with (n = 31) other agents.

Disclosures: This study was partly supported by the Biostatistics and Bioinformatics Shared Resource of Winship Cancer Institute of Emory University and others. Some authors reported ties with various organizations.

Source: Sawalha Y et al. A multicenter analysis of the outcomes with venetoclax in patients with relapsed mantle cell lymphoma. Blood Adv. 2023 (Feb 21). Doi: 10.1182/bloodadvances.2022008916

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Key clinical point: Venetoclax resulted in a good overall response rate (ORR) but short progression-free survival (PFS) in high-risk and heavily pretreated patients with relapsed/refractory mantle cell lymphoma (MCL).

Major finding: At a median follow-up of 16.4 months, patients receiving venetoclax without or with other agents had a median PFS and overall survival of 3.7 (95% CI 2.3-5.6) months and 12.5 (95% CI,6.2-28.2) months, respectively, and an ORR of 40%.

Study details: The data come from a multicenter retrospective study including 81 adult patients with relapsed/refractory MCL, most being heavily pretreated (median of three prior treatments) and having high-risk features including high Ki-67 and TP53 alterations, who received venetoclax without (n = 50) or with (n = 31) other agents.

Disclosures: This study was partly supported by the Biostatistics and Bioinformatics Shared Resource of Winship Cancer Institute of Emory University and others. Some authors reported ties with various organizations.

Source: Sawalha Y et al. A multicenter analysis of the outcomes with venetoclax in patients with relapsed mantle cell lymphoma. Blood Adv. 2023 (Feb 21). Doi: 10.1182/bloodadvances.2022008916

Key clinical point: Venetoclax resulted in a good overall response rate (ORR) but short progression-free survival (PFS) in high-risk and heavily pretreated patients with relapsed/refractory mantle cell lymphoma (MCL).

Major finding: At a median follow-up of 16.4 months, patients receiving venetoclax without or with other agents had a median PFS and overall survival of 3.7 (95% CI 2.3-5.6) months and 12.5 (95% CI,6.2-28.2) months, respectively, and an ORR of 40%.

Study details: The data come from a multicenter retrospective study including 81 adult patients with relapsed/refractory MCL, most being heavily pretreated (median of three prior treatments) and having high-risk features including high Ki-67 and TP53 alterations, who received venetoclax without (n = 50) or with (n = 31) other agents.

Disclosures: This study was partly supported by the Biostatistics and Bioinformatics Shared Resource of Winship Cancer Institute of Emory University and others. Some authors reported ties with various organizations.

Source: Sawalha Y et al. A multicenter analysis of the outcomes with venetoclax in patients with relapsed mantle cell lymphoma. Blood Adv. 2023 (Feb 21). Doi: 10.1182/bloodadvances.2022008916

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