B Cell Lymphoma

A type of B-cell lymphoma called early-stage I primary ocular adnexal mucosa-associated lymphoid tissue lymphoma (POAML) has highly favorable survival rates, according to new research presented at the European Society of Medical Oncology (ESMO) Congress 2023. While relapse is common, those rates are significantly lower with radiation therapy.

“Our study represents the largest institutional cohort analysis on the course of patients with stage I POAML,” said first author Linrui Gao, MD, of the department of radiation oncology at the National Clinical Research Center for Cancer, Chinese Academy of Medical Sciences and Peking Union Medical College, in Beijing.

Dr. Gao presented these findings at ESMO 2023, held in Madrid.

“We confirm the indolent nature of this stage I disease, with mortality that is similar to the general population and a low rate of lymphoma-attributed mortality,” she said, adding that “radiation therapy was associated with the lowest relapse or disease progression, compared with [other treatments].”

POAML, which can involve lesions in areas including the eyelid, conjunctiva, orbit, and lacrimal gland, makes up about 7% of mucosa-associated lymphoid tissue (MALT) lymphomas. However, the incidence is reported to be steadily increasing. With the majority of patients, 70%-85%, diagnosed as stage I, consensus on treatment approaches is lacking.

Guidelines typically recommend radiation therapy as the standard of care, and approximately 70% of POAML patients do receive the therapy, compared with only about 36% of those with early-stage MALT lymphoma, with the indolent nature of the disease likely weighing on decisions to forgo the treatment, Dr. Gao reported.

“Adoption of initial radiotherapy in early-stage POAML is relatively low worldwide, with possible reasons being [concerns] of a low survival benefit and long-term toxicities,” she said.

To evaluate the long-term outcomes based on baseline clinical features and treatments, Dr. Gao and colleagues conducted a retrospective study of 262 patients with stage I POAML (ipsilateral or bilateral disease), enrolled between January 2000 and December 2020 at two hospitals in China.

Of the patients, who had a median age of 55 and a male-female ratio of 1:3, 82 were initially treated with radiation therapy, 81 with observation, 70 with surgery, and 29 with systemic treatment.

Those receiving radiation therapy had higher rates of an Eastern Cooperative Oncology Group performance status of 1 or higher (P = .02), higher elevations of LDH (P = .03), and higher rates of chronic disease (P < .001), while other baseline characteristics between the groups, including age, T stage, symptom duration, and other factors, were similar.

With a median follow-up of 66 months, the 5-year and 10-year overall survival rates were 96.8% and 90%, respectively, which is similar to the survival rate in the general population in China.

Likewise, the 5- and 10-year rates of lymphoma-specific mortality were both extremely low, at 0.4%, and the corresponding rates of competing nonlymphoma mortality at 5 and 10 years were 2.3% and 4.2%, also consistent with the general population.

The 5- and 10-year mortality rates remained similar to the general population in stratifying patients according to the initial treatment type (P = .767 between treatments).

In terms of recurrence, the overall failure rates were relatively high, with 19.5% of patients experiencing relapse at 5 years and 24.05% at 10 years.

“The failure rates show that the risk of relapse in POAML does not decrease over time,” Dr. Gao said.

Notably, those treated with radiation therapy had a significantly decreased 5-year cumulative risk of failure (8.5%), compared with those who only received observation (29.6%), surgery (22.9%), or systemic treatment (17.2%; overall, P = .002).

The most common failure site was the ipsilateral orbit, and again, rates of those relapses were significantly lower with radiation therapy (2.4%), compared with observation (23.5%), surgery (21.4%), and systemic treatment (17.3%).

However, rates of relapses in other sites, including the contralateral orbit, extraocular site, and multiple sites, were similar among all treatment groups. One patient receiving systemic treatment had large cell transformation, associated with poorer outcomes.

Strategies after recurrence were salvage therapy for 53 patients, including 27 receiving radiation therapy, and observation for 10 patients.

Dr. Gao noted that treatment failure was not associated with higher mortality rates. “However, given the limited number of cases, we think more cases and longer follow-up are needed,” she told MDedge.

Among the most common acute toxicities were ocular dermatitis or mucositis, described as mild, among 23 patients receiving radiation therapy. Nine patients experienced postoperative complications of mild eye irritation and periorbital edema, and five patients receiving systemic treatment experienced grade 2-3 leukopenia. There were no severe adverse events.

In terms of late ocular adverse effects, overall, 3 patients in the radiation therapy group developed cataracts and 143 patients developed dry-eye disease.

“Radiation therapy was associated with the lowest rate of relapse progression, compared with observation, surgery, and systemic treatment, with similar overall and recurrent survival,” Dr. Gao said.

“Based on our study results, radiotherapy should be considered as the optimal treatment for all patients with stage I disease because of its lowest failure risk and minor toxicity,” Dr. Gao told MDedge.

“However, the radiotherapy dose and techniques should be further optimized in good clinical trials,” she noted. “There are some clinical studies undergoing to explore the modern radiotherapy strategy, including by our group.”

Commenting on the study, discussant Olivier Casasnovas, MD, PhD, of the department of hematology, University Hospital Francois Mitterrand, in Dijon, France, noted that “interestingly, radiotherapy reduced the risk of local relapse but not systemic relapse.”


 

Benefits linked to radiation therapy dose?

Furthermore, the study adds to evidence suggesting the role of dose in radiation therapy’s benefits in POAML, Dr. Casanovas noted. He pointed to previous research showing that, with a median radiotherapy dose of 26 Gy, stage I POAML patients had a local relapse rate of 9.5%, whereas in the current study, which reported a median radiotherapy dose of 30.6 Gy, the local relapse rate was just 2%.

“Regarding the risk of local relapse, it’s important to see that, as previous published, the risk of a local relapse depends probably on the dose of radiotherapy,” he said.

The results indicate that “radiation therapy could impact patients’ outcome. In comparison to previous research, this suggests benefits from a higher dose.”

He added that “it would be interesting to test in this series if patients receiving more or less 30 Gy had different outcomes or the risks of failure at different sites.”

Overall, the study confirms that POAML “can be safely treated with radiation therapy, which allows for a better chance of local control, compared with other options, but does not preclude relapse over time,” Dr. Casasnovas concluded, adding, “I think that a standardization of radiotherapy dose is warranted to provide guidelines to clinicians treating this infrequent population of patients.”

The authors had no disclosures to report.

A type of B-cell lymphoma called early-stage I primary ocular adnexal mucosa-associated lymphoid tissue lymphoma (POAML) has highly favorable survival rates, according to new research presented at the European Society of Medical Oncology (ESMO) Congress 2023. While relapse is common, those rates are significantly lower with radiation therapy.

“Our study represents the largest institutional cohort analysis on the course of patients with stage I POAML,” said first author Linrui Gao, MD, of the department of radiation oncology at the National Clinical Research Center for Cancer, Chinese Academy of Medical Sciences and Peking Union Medical College, in Beijing.

Dr. Gao presented these findings at ESMO 2023, held in Madrid.

“We confirm the indolent nature of this stage I disease, with mortality that is similar to the general population and a low rate of lymphoma-attributed mortality,” she said, adding that “radiation therapy was associated with the lowest relapse or disease progression, compared with [other treatments].”

POAML, which can involve lesions in areas including the eyelid, conjunctiva, orbit, and lacrimal gland, makes up about 7% of mucosa-associated lymphoid tissue (MALT) lymphomas. However, the incidence is reported to be steadily increasing. With the majority of patients, 70%-85%, diagnosed as stage I, consensus on treatment approaches is lacking.

Guidelines typically recommend radiation therapy as the standard of care, and approximately 70% of POAML patients do receive the therapy, compared with only about 36% of those with early-stage MALT lymphoma, with the indolent nature of the disease likely weighing on decisions to forgo the treatment, Dr. Gao reported.

“Adoption of initial radiotherapy in early-stage POAML is relatively low worldwide, with possible reasons being [concerns] of a low survival benefit and long-term toxicities,” she said.

To evaluate the long-term outcomes based on baseline clinical features and treatments, Dr. Gao and colleagues conducted a retrospective study of 262 patients with stage I POAML (ipsilateral or bilateral disease), enrolled between January 2000 and December 2020 at two hospitals in China.

Of the patients, who had a median age of 55 and a male-female ratio of 1:3, 82 were initially treated with radiation therapy, 81 with observation, 70 with surgery, and 29 with systemic treatment.

Those receiving radiation therapy had higher rates of an Eastern Cooperative Oncology Group performance status of 1 or higher (P = .02), higher elevations of LDH (P = .03), and higher rates of chronic disease (P < .001), while other baseline characteristics between the groups, including age, T stage, symptom duration, and other factors, were similar.

With a median follow-up of 66 months, the 5-year and 10-year overall survival rates were 96.8% and 90%, respectively, which is similar to the survival rate in the general population in China.

Likewise, the 5- and 10-year rates of lymphoma-specific mortality were both extremely low, at 0.4%, and the corresponding rates of competing nonlymphoma mortality at 5 and 10 years were 2.3% and 4.2%, also consistent with the general population.

The 5- and 10-year mortality rates remained similar to the general population in stratifying patients according to the initial treatment type (P = .767 between treatments).

In terms of recurrence, the overall failure rates were relatively high, with 19.5% of patients experiencing relapse at 5 years and 24.05% at 10 years.

“The failure rates show that the risk of relapse in POAML does not decrease over time,” Dr. Gao said.

Notably, those treated with radiation therapy had a significantly decreased 5-year cumulative risk of failure (8.5%), compared with those who only received observation (29.6%), surgery (22.9%), or systemic treatment (17.2%; overall, P = .002).

The most common failure site was the ipsilateral orbit, and again, rates of those relapses were significantly lower with radiation therapy (2.4%), compared with observation (23.5%), surgery (21.4%), and systemic treatment (17.3%).

However, rates of relapses in other sites, including the contralateral orbit, extraocular site, and multiple sites, were similar among all treatment groups. One patient receiving systemic treatment had large cell transformation, associated with poorer outcomes.

Strategies after recurrence were salvage therapy for 53 patients, including 27 receiving radiation therapy, and observation for 10 patients.

Dr. Gao noted that treatment failure was not associated with higher mortality rates. “However, given the limited number of cases, we think more cases and longer follow-up are needed,” she told MDedge.

Among the most common acute toxicities were ocular dermatitis or mucositis, described as mild, among 23 patients receiving radiation therapy. Nine patients experienced postoperative complications of mild eye irritation and periorbital edema, and five patients receiving systemic treatment experienced grade 2-3 leukopenia. There were no severe adverse events.

In terms of late ocular adverse effects, overall, 3 patients in the radiation therapy group developed cataracts and 143 patients developed dry-eye disease.

“Radiation therapy was associated with the lowest rate of relapse progression, compared with observation, surgery, and systemic treatment, with similar overall and recurrent survival,” Dr. Gao said.

“Based on our study results, radiotherapy should be considered as the optimal treatment for all patients with stage I disease because of its lowest failure risk and minor toxicity,” Dr. Gao told MDedge.

“However, the radiotherapy dose and techniques should be further optimized in good clinical trials,” she noted. “There are some clinical studies undergoing to explore the modern radiotherapy strategy, including by our group.”

Commenting on the study, discussant Olivier Casasnovas, MD, PhD, of the department of hematology, University Hospital Francois Mitterrand, in Dijon, France, noted that “interestingly, radiotherapy reduced the risk of local relapse but not systemic relapse.”


 

Benefits linked to radiation therapy dose?

Furthermore, the study adds to evidence suggesting the role of dose in radiation therapy’s benefits in POAML, Dr. Casanovas noted. He pointed to previous research showing that, with a median radiotherapy dose of 26 Gy, stage I POAML patients had a local relapse rate of 9.5%, whereas in the current study, which reported a median radiotherapy dose of 30.6 Gy, the local relapse rate was just 2%.

“Regarding the risk of local relapse, it’s important to see that, as previous published, the risk of a local relapse depends probably on the dose of radiotherapy,” he said.

The results indicate that “radiation therapy could impact patients’ outcome. In comparison to previous research, this suggests benefits from a higher dose.”

He added that “it would be interesting to test in this series if patients receiving more or less 30 Gy had different outcomes or the risks of failure at different sites.”

Overall, the study confirms that POAML “can be safely treated with radiation therapy, which allows for a better chance of local control, compared with other options, but does not preclude relapse over time,” Dr. Casasnovas concluded, adding, “I think that a standardization of radiotherapy dose is warranted to provide guidelines to clinicians treating this infrequent population of patients.”

The authors had no disclosures to report.

A type of B-cell lymphoma called early-stage I primary ocular adnexal mucosa-associated lymphoid tissue lymphoma (POAML) has highly favorable survival rates, according to new research presented at the European Society of Medical Oncology (ESMO) Congress 2023. While relapse is common, those rates are significantly lower with radiation therapy.

“Our study represents the largest institutional cohort analysis on the course of patients with stage I POAML,” said first author Linrui Gao, MD, of the department of radiation oncology at the National Clinical Research Center for Cancer, Chinese Academy of Medical Sciences and Peking Union Medical College, in Beijing.

Dr. Gao presented these findings at ESMO 2023, held in Madrid.

“We confirm the indolent nature of this stage I disease, with mortality that is similar to the general population and a low rate of lymphoma-attributed mortality,” she said, adding that “radiation therapy was associated with the lowest relapse or disease progression, compared with [other treatments].”

POAML, which can involve lesions in areas including the eyelid, conjunctiva, orbit, and lacrimal gland, makes up about 7% of mucosa-associated lymphoid tissue (MALT) lymphomas. However, the incidence is reported to be steadily increasing. With the majority of patients, 70%-85%, diagnosed as stage I, consensus on treatment approaches is lacking.

Guidelines typically recommend radiation therapy as the standard of care, and approximately 70% of POAML patients do receive the therapy, compared with only about 36% of those with early-stage MALT lymphoma, with the indolent nature of the disease likely weighing on decisions to forgo the treatment, Dr. Gao reported.

“Adoption of initial radiotherapy in early-stage POAML is relatively low worldwide, with possible reasons being [concerns] of a low survival benefit and long-term toxicities,” she said.

To evaluate the long-term outcomes based on baseline clinical features and treatments, Dr. Gao and colleagues conducted a retrospective study of 262 patients with stage I POAML (ipsilateral or bilateral disease), enrolled between January 2000 and December 2020 at two hospitals in China.

Of the patients, who had a median age of 55 and a male-female ratio of 1:3, 82 were initially treated with radiation therapy, 81 with observation, 70 with surgery, and 29 with systemic treatment.

Those receiving radiation therapy had higher rates of an Eastern Cooperative Oncology Group performance status of 1 or higher (P = .02), higher elevations of LDH (P = .03), and higher rates of chronic disease (P < .001), while other baseline characteristics between the groups, including age, T stage, symptom duration, and other factors, were similar.

With a median follow-up of 66 months, the 5-year and 10-year overall survival rates were 96.8% and 90%, respectively, which is similar to the survival rate in the general population in China.

Likewise, the 5- and 10-year rates of lymphoma-specific mortality were both extremely low, at 0.4%, and the corresponding rates of competing nonlymphoma mortality at 5 and 10 years were 2.3% and 4.2%, also consistent with the general population.

The 5- and 10-year mortality rates remained similar to the general population in stratifying patients according to the initial treatment type (P = .767 between treatments).

In terms of recurrence, the overall failure rates were relatively high, with 19.5% of patients experiencing relapse at 5 years and 24.05% at 10 years.

“The failure rates show that the risk of relapse in POAML does not decrease over time,” Dr. Gao said.

Notably, those treated with radiation therapy had a significantly decreased 5-year cumulative risk of failure (8.5%), compared with those who only received observation (29.6%), surgery (22.9%), or systemic treatment (17.2%; overall, P = .002).

The most common failure site was the ipsilateral orbit, and again, rates of those relapses were significantly lower with radiation therapy (2.4%), compared with observation (23.5%), surgery (21.4%), and systemic treatment (17.3%).

However, rates of relapses in other sites, including the contralateral orbit, extraocular site, and multiple sites, were similar among all treatment groups. One patient receiving systemic treatment had large cell transformation, associated with poorer outcomes.

Strategies after recurrence were salvage therapy for 53 patients, including 27 receiving radiation therapy, and observation for 10 patients.

Dr. Gao noted that treatment failure was not associated with higher mortality rates. “However, given the limited number of cases, we think more cases and longer follow-up are needed,” she told MDedge.

Among the most common acute toxicities were ocular dermatitis or mucositis, described as mild, among 23 patients receiving radiation therapy. Nine patients experienced postoperative complications of mild eye irritation and periorbital edema, and five patients receiving systemic treatment experienced grade 2-3 leukopenia. There were no severe adverse events.

In terms of late ocular adverse effects, overall, 3 patients in the radiation therapy group developed cataracts and 143 patients developed dry-eye disease.

“Radiation therapy was associated with the lowest rate of relapse progression, compared with observation, surgery, and systemic treatment, with similar overall and recurrent survival,” Dr. Gao said.

“Based on our study results, radiotherapy should be considered as the optimal treatment for all patients with stage I disease because of its lowest failure risk and minor toxicity,” Dr. Gao told MDedge.

“However, the radiotherapy dose and techniques should be further optimized in good clinical trials,” she noted. “There are some clinical studies undergoing to explore the modern radiotherapy strategy, including by our group.”

Commenting on the study, discussant Olivier Casasnovas, MD, PhD, of the department of hematology, University Hospital Francois Mitterrand, in Dijon, France, noted that “interestingly, radiotherapy reduced the risk of local relapse but not systemic relapse.”


 

Benefits linked to radiation therapy dose?

Furthermore, the study adds to evidence suggesting the role of dose in radiation therapy’s benefits in POAML, Dr. Casanovas noted. He pointed to previous research showing that, with a median radiotherapy dose of 26 Gy, stage I POAML patients had a local relapse rate of 9.5%, whereas in the current study, which reported a median radiotherapy dose of 30.6 Gy, the local relapse rate was just 2%.

“Regarding the risk of local relapse, it’s important to see that, as previous published, the risk of a local relapse depends probably on the dose of radiotherapy,” he said.

The results indicate that “radiation therapy could impact patients’ outcome. In comparison to previous research, this suggests benefits from a higher dose.”

He added that “it would be interesting to test in this series if patients receiving more or less 30 Gy had different outcomes or the risks of failure at different sites.”

Overall, the study confirms that POAML “can be safely treated with radiation therapy, which allows for a better chance of local control, compared with other options, but does not preclude relapse over time,” Dr. Casasnovas concluded, adding, “I think that a standardization of radiotherapy dose is warranted to provide guidelines to clinicians treating this infrequent population of patients.”

The authors had no disclosures to report.

Key clinical point: Long-term exposure to brominated trihalomethanes (THM) in drinking water and swimming pool water is associated with increased odds of developing chronic lymphocytic leukemia (CLL).

Major finding: The odds of developing CLL increased by 22% for every 10 μg/L increase in the level of brominated THM in drinking water (adjusted odds ratio [aOR] 1.22; 95% CI 1.14-1.31). Swimming pool users vs non-users (swimming pool attendance ≥ 10 times vs < 10 times in life) had significantly increased odds of CLL (aOR 2.38; 95% CI 1.61-3.52).

Study details: This multicentric multicase-control study included 170 patients with CLL (age 20-85 years) and 1442 matched population-based control individuals without CLL.

Disclosures: This study was funded by European Commission grants and others. The authors declared no conflicts of interest.

Source: Donat-Vargas C et al. Lifetime exposure to brominated trihalomethanes in drinking water and swimming pool attendance are associated with chronic lymphocytic leukemia: A multicase-control study in Spain (MCC-Spain). J Expo Sci Environ Epidemiol. 2023 (Sep 19). doi: 10.1038/s41370-023-00600-7

Key clinical point: Long-term exposure to brominated trihalomethanes (THM) in drinking water and swimming pool water is associated with increased odds of developing chronic lymphocytic leukemia (CLL).

Major finding: The odds of developing CLL increased by 22% for every 10 μg/L increase in the level of brominated THM in drinking water (adjusted odds ratio [aOR] 1.22; 95% CI 1.14-1.31). Swimming pool users vs non-users (swimming pool attendance ≥ 10 times vs < 10 times in life) had significantly increased odds of CLL (aOR 2.38; 95% CI 1.61-3.52).

Study details: This multicentric multicase-control study included 170 patients with CLL (age 20-85 years) and 1442 matched population-based control individuals without CLL.

Disclosures: This study was funded by European Commission grants and others. The authors declared no conflicts of interest.

Source: Donat-Vargas C et al. Lifetime exposure to brominated trihalomethanes in drinking water and swimming pool attendance are associated with chronic lymphocytic leukemia: A multicase-control study in Spain (MCC-Spain). J Expo Sci Environ Epidemiol. 2023 (Sep 19). doi: 10.1038/s41370-023-00600-7

Key clinical point: Long-term exposure to brominated trihalomethanes (THM) in drinking water and swimming pool water is associated with increased odds of developing chronic lymphocytic leukemia (CLL).

Major finding: The odds of developing CLL increased by 22% for every 10 μg/L increase in the level of brominated THM in drinking water (adjusted odds ratio [aOR] 1.22; 95% CI 1.14-1.31). Swimming pool users vs non-users (swimming pool attendance ≥ 10 times vs < 10 times in life) had significantly increased odds of CLL (aOR 2.38; 95% CI 1.61-3.52).

Study details: This multicentric multicase-control study included 170 patients with CLL (age 20-85 years) and 1442 matched population-based control individuals without CLL.

Disclosures: This study was funded by European Commission grants and others. The authors declared no conflicts of interest.

Source: Donat-Vargas C et al. Lifetime exposure to brominated trihalomethanes in drinking water and swimming pool attendance are associated with chronic lymphocytic leukemia: A multicase-control study in Spain (MCC-Spain). J Expo Sci Environ Epidemiol. 2023 (Sep 19). doi: 10.1038/s41370-023-00600-7

Key clinical point: Chimeric antigen receptor (CAR) T-cell therapy is effective for and can be safely administered to older patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) despite an increased infection rate.

Major finding: At a median follow-up of 16.3 months, the objective response rate was 67%. Median progression-free and overall survival were 10.3 (95% CI 3.3-not reached) and 28.4 (95% CI 12.4-not reached) months, respectively. Patients age > 70 years and age ≤ 70 years had comparable progression-free (P = .6) and overall (P = .5) survival and comparable incidence rates of immune effector cell-associated neurotoxicity syndrome (P = .19); however, patients age > 70 years vs age ≤ 70 years had higher all-grade infection rates (79% vs 40%, respectively).

Study details: This single-center retrospective study included 66 patients with relapsed or refractory DLBCL who received either tisagenlecleucel or axicabtagene ciloleucel, of whom 21% were age > 70 years.

Disclosures: This study did not receive any specific funding. The authors declared no conflicts of interest.

Source: Trando A et al. Outcomes of chimeric antigen receptor (CAR) T-cell therapy in patients with large B-cell lymphoma (LBCL): A single-institution experience. Cancers. 2023; 15(18):4671 (Sep 21). doi: 10.3390/cancers15184671

Key clinical point: Chimeric antigen receptor (CAR) T-cell therapy is effective for and can be safely administered to older patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) despite an increased infection rate.

Major finding: At a median follow-up of 16.3 months, the objective response rate was 67%. Median progression-free and overall survival were 10.3 (95% CI 3.3-not reached) and 28.4 (95% CI 12.4-not reached) months, respectively. Patients age > 70 years and age ≤ 70 years had comparable progression-free (P = .6) and overall (P = .5) survival and comparable incidence rates of immune effector cell-associated neurotoxicity syndrome (P = .19); however, patients age > 70 years vs age ≤ 70 years had higher all-grade infection rates (79% vs 40%, respectively).

Study details: This single-center retrospective study included 66 patients with relapsed or refractory DLBCL who received either tisagenlecleucel or axicabtagene ciloleucel, of whom 21% were age > 70 years.

Disclosures: This study did not receive any specific funding. The authors declared no conflicts of interest.

Source: Trando A et al. Outcomes of chimeric antigen receptor (CAR) T-cell therapy in patients with large B-cell lymphoma (LBCL): A single-institution experience. Cancers. 2023; 15(18):4671 (Sep 21). doi: 10.3390/cancers15184671

Key clinical point: Chimeric antigen receptor (CAR) T-cell therapy is effective for and can be safely administered to older patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) despite an increased infection rate.

Major finding: At a median follow-up of 16.3 months, the objective response rate was 67%. Median progression-free and overall survival were 10.3 (95% CI 3.3-not reached) and 28.4 (95% CI 12.4-not reached) months, respectively. Patients age > 70 years and age ≤ 70 years had comparable progression-free (P = .6) and overall (P = .5) survival and comparable incidence rates of immune effector cell-associated neurotoxicity syndrome (P = .19); however, patients age > 70 years vs age ≤ 70 years had higher all-grade infection rates (79% vs 40%, respectively).

Study details: This single-center retrospective study included 66 patients with relapsed or refractory DLBCL who received either tisagenlecleucel or axicabtagene ciloleucel, of whom 21% were age > 70 years.

Disclosures: This study did not receive any specific funding. The authors declared no conflicts of interest.

Source: Trando A et al. Outcomes of chimeric antigen receptor (CAR) T-cell therapy in patients with large B-cell lymphoma (LBCL): A single-institution experience. Cancers. 2023; 15(18):4671 (Sep 21). doi: 10.3390/cancers15184671

Key clinical point: Acalabrutinib and zanubrutinib showed similar efficacy and safety profiles in patients with relapsed or refractory chronic lymphocytic leukemia (CLL) after matching observed patient variables that are prognostic or predictive at baseline.

Major finding: Acalabrutinib and zanubrutinib treatments resulted in comparable investigator-assessed progression-free survival outcomes (adjusted hazard ratio 0.90; 95% CI 0.60-1.36) and comparable risks for grade ≥3 adverse events (adjusted odds ratio 0.66; 95% CI 0.41-1.05).

Study details: This unanchored indirect comparison study included patients with relapsed or refractory CLL and matched the individual patient-level data of those who received acalabrutinib in the ASCEND trial (n = 149) with the aggregate data of those who received zanubrutinib in the ALPINE trial (n = 327).

Disclosures: This study was funded by AstraZeneca, USA. Some authors declared serving as consultants, advisors, or speakers for or receiving research funding or consulting fees from various sources, including AstraZeneca. Six authors declared being employees of AstraZeneca, USA, or holding stocks in AstraZeneca.

Source: Kittai AS, Skarbnick A, et al. A matching-adjusted indirect comparison of acalabrutinib versus zanubrutinib in relapsed or refractory chronic lymphocytic leukemia. Am J Hematol. 2023 (Oct 9). doi: 10.1002/ajh.27110

Key clinical point: Acalabrutinib and zanubrutinib showed similar efficacy and safety profiles in patients with relapsed or refractory chronic lymphocytic leukemia (CLL) after matching observed patient variables that are prognostic or predictive at baseline.

Major finding: Acalabrutinib and zanubrutinib treatments resulted in comparable investigator-assessed progression-free survival outcomes (adjusted hazard ratio 0.90; 95% CI 0.60-1.36) and comparable risks for grade ≥3 adverse events (adjusted odds ratio 0.66; 95% CI 0.41-1.05).

Study details: This unanchored indirect comparison study included patients with relapsed or refractory CLL and matched the individual patient-level data of those who received acalabrutinib in the ASCEND trial (n = 149) with the aggregate data of those who received zanubrutinib in the ALPINE trial (n = 327).

Disclosures: This study was funded by AstraZeneca, USA. Some authors declared serving as consultants, advisors, or speakers for or receiving research funding or consulting fees from various sources, including AstraZeneca. Six authors declared being employees of AstraZeneca, USA, or holding stocks in AstraZeneca.

Source: Kittai AS, Skarbnick A, et al. A matching-adjusted indirect comparison of acalabrutinib versus zanubrutinib in relapsed or refractory chronic lymphocytic leukemia. Am J Hematol. 2023 (Oct 9). doi: 10.1002/ajh.27110

Key clinical point: Acalabrutinib and zanubrutinib showed similar efficacy and safety profiles in patients with relapsed or refractory chronic lymphocytic leukemia (CLL) after matching observed patient variables that are prognostic or predictive at baseline.

Major finding: Acalabrutinib and zanubrutinib treatments resulted in comparable investigator-assessed progression-free survival outcomes (adjusted hazard ratio 0.90; 95% CI 0.60-1.36) and comparable risks for grade ≥3 adverse events (adjusted odds ratio 0.66; 95% CI 0.41-1.05).

Study details: This unanchored indirect comparison study included patients with relapsed or refractory CLL and matched the individual patient-level data of those who received acalabrutinib in the ASCEND trial (n = 149) with the aggregate data of those who received zanubrutinib in the ALPINE trial (n = 327).

Disclosures: This study was funded by AstraZeneca, USA. Some authors declared serving as consultants, advisors, or speakers for or receiving research funding or consulting fees from various sources, including AstraZeneca. Six authors declared being employees of AstraZeneca, USA, or holding stocks in AstraZeneca.

Source: Kittai AS, Skarbnick A, et al. A matching-adjusted indirect comparison of acalabrutinib versus zanubrutinib in relapsed or refractory chronic lymphocytic leukemia. Am J Hematol. 2023 (Oct 9). doi: 10.1002/ajh.27110

Key clinical point: High-dose cytarabine (HDAC)-based pre-autologous stem cell transplantation (ASCT) induction regimens were not associated with improved survival but led to higher overall response rates (ORR) and lower rates of early relapses in ASCT-eligible patients with mantle cell lymphoma (MCL).

Major finding: Patients receiving rituximab + HDAC (R-HDAC)-based regimens vs rituximab + cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP) had significantly higher ORR (85.9% vs 65.7%; P = .007), lower 24-month progression rates (61.9% vs 80.4%; P = .043), and lower mortality (43.9% vs 68.6%; P = .004). However, the 2-year overall survival rates were similar between the R-HADC + ASCT and R-CHOP + ASCT groups (88.7% and 78.8%, respectively; P = .289).

Study details: This retrospective single-center study included 165 ASCT-eligible adult patients with MCL, of whom 136 patients received pre-ASCT induction immunochemotherapy with R-CHOP-like or regimens based on R-HDAC and 50 patients received consolidation with high-dose therapy and ASCT.

Disclosures: This study did not receive any specific funding. The authors declared no conflicts of interest.

Source: de Pádua Covas Lage LA et al. Up-front ASCT overcomes the survival benefit provided by HDAC-based induction regimens in mantle cell lymphoma: Data from a real-life and long-term cohort. Cancers. 2023; 15(19):4759 (Sep 28). doi: 10.3390/cancers15194759

Key clinical point: High-dose cytarabine (HDAC)-based pre-autologous stem cell transplantation (ASCT) induction regimens were not associated with improved survival but led to higher overall response rates (ORR) and lower rates of early relapses in ASCT-eligible patients with mantle cell lymphoma (MCL).

Major finding: Patients receiving rituximab + HDAC (R-HDAC)-based regimens vs rituximab + cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP) had significantly higher ORR (85.9% vs 65.7%; P = .007), lower 24-month progression rates (61.9% vs 80.4%; P = .043), and lower mortality (43.9% vs 68.6%; P = .004). However, the 2-year overall survival rates were similar between the R-HADC + ASCT and R-CHOP + ASCT groups (88.7% and 78.8%, respectively; P = .289).

Study details: This retrospective single-center study included 165 ASCT-eligible adult patients with MCL, of whom 136 patients received pre-ASCT induction immunochemotherapy with R-CHOP-like or regimens based on R-HDAC and 50 patients received consolidation with high-dose therapy and ASCT.

Disclosures: This study did not receive any specific funding. The authors declared no conflicts of interest.

Source: de Pádua Covas Lage LA et al. Up-front ASCT overcomes the survival benefit provided by HDAC-based induction regimens in mantle cell lymphoma: Data from a real-life and long-term cohort. Cancers. 2023; 15(19):4759 (Sep 28). doi: 10.3390/cancers15194759

Key clinical point: High-dose cytarabine (HDAC)-based pre-autologous stem cell transplantation (ASCT) induction regimens were not associated with improved survival but led to higher overall response rates (ORR) and lower rates of early relapses in ASCT-eligible patients with mantle cell lymphoma (MCL).

Major finding: Patients receiving rituximab + HDAC (R-HDAC)-based regimens vs rituximab + cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP) had significantly higher ORR (85.9% vs 65.7%; P = .007), lower 24-month progression rates (61.9% vs 80.4%; P = .043), and lower mortality (43.9% vs 68.6%; P = .004). However, the 2-year overall survival rates were similar between the R-HADC + ASCT and R-CHOP + ASCT groups (88.7% and 78.8%, respectively; P = .289).

Study details: This retrospective single-center study included 165 ASCT-eligible adult patients with MCL, of whom 136 patients received pre-ASCT induction immunochemotherapy with R-CHOP-like or regimens based on R-HDAC and 50 patients received consolidation with high-dose therapy and ASCT.

Disclosures: This study did not receive any specific funding. The authors declared no conflicts of interest.

Source: de Pádua Covas Lage LA et al. Up-front ASCT overcomes the survival benefit provided by HDAC-based induction regimens in mantle cell lymphoma: Data from a real-life and long-term cohort. Cancers. 2023; 15(19):4759 (Sep 28). doi: 10.3390/cancers15194759

Key clinical point: Cumulative airborne dioxin exposure is significantly associated with an increased risk for non-Hodgkin's lymphoma (NHL), particularly for combined chronic lymphocytic leukemia (CLL) and small lymphocytic lymphoma (SLL).

Major finding: A significant association was observed between log-transformed cumulative dioxin exposure index scores and the risk for NHL (adjusted odds ratio [aOR] 1.2; 95% CI 1.0-1.4), especially in case of the CLL and SLL subtypes (aOR 1.6; 95% CI 1.1-2.3), for a 4.4 log µg-toxic equivalent quantity/m² increase corresponding to a standard deviation.

Study details: This case-control study was nested within the prospective French National Institute for Health and Medical Research E3N cohort and included 368 women with NHL and 368 matched control women without NHL.

Disclosures: The E3N cohort was established and maintained with the support of the Mutuelle Générale de l'Education Nationale, France, and other sources. The authors declared no conflicts of interest.

Source: Gaspard E et al. Association between cumulative airborne dioxin exposure and non-Hodgkin's lymphoma risk in a nested case-control study within the French E3N cohort. Sci Total Environ. 2023;906:167330 (Sep 29). doi: 10.1016/j.scitotenv.2023.167330

Key clinical point: Cumulative airborne dioxin exposure is significantly associated with an increased risk for non-Hodgkin's lymphoma (NHL), particularly for combined chronic lymphocytic leukemia (CLL) and small lymphocytic lymphoma (SLL).

Major finding: A significant association was observed between log-transformed cumulative dioxin exposure index scores and the risk for NHL (adjusted odds ratio [aOR] 1.2; 95% CI 1.0-1.4), especially in case of the CLL and SLL subtypes (aOR 1.6; 95% CI 1.1-2.3), for a 4.4 log µg-toxic equivalent quantity/m² increase corresponding to a standard deviation.

Study details: This case-control study was nested within the prospective French National Institute for Health and Medical Research E3N cohort and included 368 women with NHL and 368 matched control women without NHL.

Disclosures: The E3N cohort was established and maintained with the support of the Mutuelle Générale de l'Education Nationale, France, and other sources. The authors declared no conflicts of interest.

Source: Gaspard E et al. Association between cumulative airborne dioxin exposure and non-Hodgkin's lymphoma risk in a nested case-control study within the French E3N cohort. Sci Total Environ. 2023;906:167330 (Sep 29). doi: 10.1016/j.scitotenv.2023.167330

Key clinical point: Cumulative airborne dioxin exposure is significantly associated with an increased risk for non-Hodgkin's lymphoma (NHL), particularly for combined chronic lymphocytic leukemia (CLL) and small lymphocytic lymphoma (SLL).

Major finding: A significant association was observed between log-transformed cumulative dioxin exposure index scores and the risk for NHL (adjusted odds ratio [aOR] 1.2; 95% CI 1.0-1.4), especially in case of the CLL and SLL subtypes (aOR 1.6; 95% CI 1.1-2.3), for a 4.4 log µg-toxic equivalent quantity/m² increase corresponding to a standard deviation.

Study details: This case-control study was nested within the prospective French National Institute for Health and Medical Research E3N cohort and included 368 women with NHL and 368 matched control women without NHL.

Disclosures: The E3N cohort was established and maintained with the support of the Mutuelle Générale de l'Education Nationale, France, and other sources. The authors declared no conflicts of interest.

Source: Gaspard E et al. Association between cumulative airborne dioxin exposure and non-Hodgkin's lymphoma risk in a nested case-control study within the French E3N cohort. Sci Total Environ. 2023;906:167330 (Sep 29). doi: 10.1016/j.scitotenv.2023.167330

Key clinical point: The ibrutinib + bortezomib combination shows durable efficacy and manageable safety in patients with relapsed or refractory (R/R) mantle cell lymphoma (MCL), including high-risk patients.

Major finding: The combination led to an objective response rate of 81.8% (90% CI 71.1%-89.8%), which increased to 87.3% (90% CI 77.4%-93.9%) with ibrutinib maintenance. At a 25.4-month median follow-up, the median duration of response and progression-free survival were 22.7 (95% CI 12.3-not achieved) and 18.6 (95% CI 12.5-not achieved) months, respectively. The adverse event profile was consistent with the known safety profiles of individual drugs.

Study details: This phase 2 trial included 55 ibrutinib-naive and bortezomib-naive patients with R/R MCL previously treated with ≤2 lines of chemotherapy (of whom 75.6% had ≥1 high-risk features) who received 6 cycles of ibrutinib + bortezomib followed by ibrutinib maintenance.

Disclosures: This study was supported by Janssen and others. Some authors declared serving on the advisory boards of or receiving research funding, consulting fees, honoraria, or meeting or travel support from various sources, including Janssen.

Source: Novak U et al. Combined therapy with ibrutinib and bortezomib followed by ibrutinib maintenance in relapsed or refractory mantle cell lymphoma and high-risk features: A phase 1/2 trial of the European MCL network (SAKK 36/13). EClinicalMedicine. 2023;64:102221 (Sep 21). doi: 10.1016/j.eclinm.2023.102221

Key clinical point: The ibrutinib + bortezomib combination shows durable efficacy and manageable safety in patients with relapsed or refractory (R/R) mantle cell lymphoma (MCL), including high-risk patients.

Major finding: The combination led to an objective response rate of 81.8% (90% CI 71.1%-89.8%), which increased to 87.3% (90% CI 77.4%-93.9%) with ibrutinib maintenance. At a 25.4-month median follow-up, the median duration of response and progression-free survival were 22.7 (95% CI 12.3-not achieved) and 18.6 (95% CI 12.5-not achieved) months, respectively. The adverse event profile was consistent with the known safety profiles of individual drugs.

Study details: This phase 2 trial included 55 ibrutinib-naive and bortezomib-naive patients with R/R MCL previously treated with ≤2 lines of chemotherapy (of whom 75.6% had ≥1 high-risk features) who received 6 cycles of ibrutinib + bortezomib followed by ibrutinib maintenance.

Disclosures: This study was supported by Janssen and others. Some authors declared serving on the advisory boards of or receiving research funding, consulting fees, honoraria, or meeting or travel support from various sources, including Janssen.

Source: Novak U et al. Combined therapy with ibrutinib and bortezomib followed by ibrutinib maintenance in relapsed or refractory mantle cell lymphoma and high-risk features: A phase 1/2 trial of the European MCL network (SAKK 36/13). EClinicalMedicine. 2023;64:102221 (Sep 21). doi: 10.1016/j.eclinm.2023.102221

Key clinical point: The ibrutinib + bortezomib combination shows durable efficacy and manageable safety in patients with relapsed or refractory (R/R) mantle cell lymphoma (MCL), including high-risk patients.

Major finding: The combination led to an objective response rate of 81.8% (90% CI 71.1%-89.8%), which increased to 87.3% (90% CI 77.4%-93.9%) with ibrutinib maintenance. At a 25.4-month median follow-up, the median duration of response and progression-free survival were 22.7 (95% CI 12.3-not achieved) and 18.6 (95% CI 12.5-not achieved) months, respectively. The adverse event profile was consistent with the known safety profiles of individual drugs.

Study details: This phase 2 trial included 55 ibrutinib-naive and bortezomib-naive patients with R/R MCL previously treated with ≤2 lines of chemotherapy (of whom 75.6% had ≥1 high-risk features) who received 6 cycles of ibrutinib + bortezomib followed by ibrutinib maintenance.

Disclosures: This study was supported by Janssen and others. Some authors declared serving on the advisory boards of or receiving research funding, consulting fees, honoraria, or meeting or travel support from various sources, including Janssen.

Source: Novak U et al. Combined therapy with ibrutinib and bortezomib followed by ibrutinib maintenance in relapsed or refractory mantle cell lymphoma and high-risk features: A phase 1/2 trial of the European MCL network (SAKK 36/13). EClinicalMedicine. 2023;64:102221 (Sep 21). doi: 10.1016/j.eclinm.2023.102221

Key clinical point: Ibrutinib maintenance (I-M; dose 560 mg daily) for 4 years is effective in patients with treatment-naive mantle cell lymphoma (MCL) who are responsive to frontline chemo-immunotherapy with significant but manageable toxicities.

Major finding: The 3-year progression-free survival (PFS) and overall survival (OS) rates were 94% and 97%, whereas the 5-year PFS and OS rates were 89% and 91%, respectively. In patients with prior autologous stem cell transplantation (autoSCT), the 5-year PFS and OS rates were 100% each. The most common treatment-related adverse event was infection (86%; grades 1-2), and the most common grade 3-4 toxicities were hematologic.

Study details: This multicenter phase 2 study included patients with treatment-naive MCL who achieved a complete or partial response to frontline intensive induction chemo-immunotherapy with or without autoSCT and received 560 mg I-M daily for 4 years.

Disclosures: This study was supported by Pharmacyclics and Janssen. R Karmali and B Pro declared serving as consultants, speakers, or advisory board members for or receiving research funding or honoraria from various sources.

Source: Karmali R et al. Ibrutinib maintenance following frontline treatment in patients with mantle cell lymphoma. Blood Adv. 2023 (Sep 27). doi: 10.1182/bloodadvances.2023011271

Key clinical point: Ibrutinib maintenance (I-M; dose 560 mg daily) for 4 years is effective in patients with treatment-naive mantle cell lymphoma (MCL) who are responsive to frontline chemo-immunotherapy with significant but manageable toxicities.

Major finding: The 3-year progression-free survival (PFS) and overall survival (OS) rates were 94% and 97%, whereas the 5-year PFS and OS rates were 89% and 91%, respectively. In patients with prior autologous stem cell transplantation (autoSCT), the 5-year PFS and OS rates were 100% each. The most common treatment-related adverse event was infection (86%; grades 1-2), and the most common grade 3-4 toxicities were hematologic.

Study details: This multicenter phase 2 study included patients with treatment-naive MCL who achieved a complete or partial response to frontline intensive induction chemo-immunotherapy with or without autoSCT and received 560 mg I-M daily for 4 years.

Disclosures: This study was supported by Pharmacyclics and Janssen. R Karmali and B Pro declared serving as consultants, speakers, or advisory board members for or receiving research funding or honoraria from various sources.

Source: Karmali R et al. Ibrutinib maintenance following frontline treatment in patients with mantle cell lymphoma. Blood Adv. 2023 (Sep 27). doi: 10.1182/bloodadvances.2023011271

Key clinical point: Ibrutinib maintenance (I-M; dose 560 mg daily) for 4 years is effective in patients with treatment-naive mantle cell lymphoma (MCL) who are responsive to frontline chemo-immunotherapy with significant but manageable toxicities.

Major finding: The 3-year progression-free survival (PFS) and overall survival (OS) rates were 94% and 97%, whereas the 5-year PFS and OS rates were 89% and 91%, respectively. In patients with prior autologous stem cell transplantation (autoSCT), the 5-year PFS and OS rates were 100% each. The most common treatment-related adverse event was infection (86%; grades 1-2), and the most common grade 3-4 toxicities were hematologic.

Study details: This multicenter phase 2 study included patients with treatment-naive MCL who achieved a complete or partial response to frontline intensive induction chemo-immunotherapy with or without autoSCT and received 560 mg I-M daily for 4 years.

Disclosures: This study was supported by Pharmacyclics and Janssen. R Karmali and B Pro declared serving as consultants, speakers, or advisory board members for or receiving research funding or honoraria from various sources.

Source: Karmali R et al. Ibrutinib maintenance following frontline treatment in patients with mantle cell lymphoma. Blood Adv. 2023 (Sep 27). doi: 10.1182/bloodadvances.2023011271

Key clinical point: Prophylaxis with high-dose methotrexate (HD-MTX) was not associated with a clinically meaningful reduction in the risk for central nervous system (CNS) progression in high-risk patients with aggressive B-cell lymphoma (BCL).

Major finding: Patients who did vs did not receive HD-MTX had a significantly lower risk for CNS progression (adjusted 5-year risk difference 1.6%; adjusted hazard ratio [aHR] 0.59; P = .014), but the significance was lost when considering only those who achieved a complete response at chemoimmunotherapy completion (adjusted 5-year risk difference 1.4%; aHR 0.74; P = .30).

Study details: This multicenter retrospective study included 2418 adults with aggressive BCL and a high risk for CNS progression treated with curative-intent anti-CD20-based chemoimmunotherapy who did or did not receive HD-MTX, of whom 1616 achieved a complete response.

Disclosures: This study was funded by Janssen Pharmaceuticals and others. All authors except TC El-Galaly declared serving as consultants, advisors, or speakers for or receiving honoraria, research funding, or travel support from various sources, including Janssen.

Source: Lewis KL et al on behalf of the International CNS Prophylaxis Study Group. High-dose methotrexate as CNS prophylaxis in high-risk aggressive B-cell lymphoma. J Clin Oncol. 2023 (Oct 5). doi: 10.1200/JCO.23.00365

Key clinical point: Prophylaxis with high-dose methotrexate (HD-MTX) was not associated with a clinically meaningful reduction in the risk for central nervous system (CNS) progression in high-risk patients with aggressive B-cell lymphoma (BCL).

Major finding: Patients who did vs did not receive HD-MTX had a significantly lower risk for CNS progression (adjusted 5-year risk difference 1.6%; adjusted hazard ratio [aHR] 0.59; P = .014), but the significance was lost when considering only those who achieved a complete response at chemoimmunotherapy completion (adjusted 5-year risk difference 1.4%; aHR 0.74; P = .30).

Study details: This multicenter retrospective study included 2418 adults with aggressive BCL and a high risk for CNS progression treated with curative-intent anti-CD20-based chemoimmunotherapy who did or did not receive HD-MTX, of whom 1616 achieved a complete response.

Disclosures: This study was funded by Janssen Pharmaceuticals and others. All authors except TC El-Galaly declared serving as consultants, advisors, or speakers for or receiving honoraria, research funding, or travel support from various sources, including Janssen.

Source: Lewis KL et al on behalf of the International CNS Prophylaxis Study Group. High-dose methotrexate as CNS prophylaxis in high-risk aggressive B-cell lymphoma. J Clin Oncol. 2023 (Oct 5). doi: 10.1200/JCO.23.00365

Key clinical point: Prophylaxis with high-dose methotrexate (HD-MTX) was not associated with a clinically meaningful reduction in the risk for central nervous system (CNS) progression in high-risk patients with aggressive B-cell lymphoma (BCL).

Major finding: Patients who did vs did not receive HD-MTX had a significantly lower risk for CNS progression (adjusted 5-year risk difference 1.6%; adjusted hazard ratio [aHR] 0.59; P = .014), but the significance was lost when considering only those who achieved a complete response at chemoimmunotherapy completion (adjusted 5-year risk difference 1.4%; aHR 0.74; P = .30).

Study details: This multicenter retrospective study included 2418 adults with aggressive BCL and a high risk for CNS progression treated with curative-intent anti-CD20-based chemoimmunotherapy who did or did not receive HD-MTX, of whom 1616 achieved a complete response.

Disclosures: This study was funded by Janssen Pharmaceuticals and others. All authors except TC El-Galaly declared serving as consultants, advisors, or speakers for or receiving honoraria, research funding, or travel support from various sources, including Janssen.

Source: Lewis KL et al on behalf of the International CNS Prophylaxis Study Group. High-dose methotrexate as CNS prophylaxis in high-risk aggressive B-cell lymphoma. J Clin Oncol. 2023 (Oct 5). doi: 10.1200/JCO.23.00365

Key clinical point: Second-line vs later-line zanubrutinib treatment leads to significantly improved long-term survival outcomes in patients with relapsed or refractory mantle cell lymphoma (MCL).

Major finding: At a median follow-up of 35.2 months, patients receiving second-line vs later-line zanubrutinib had significantly improved median overall survival (adjusted hazard ratio 0.459; P = .044) and numerically longer median progression-free survival (27.8 vs 22.1 months). Adverse events observed in both groups were consistent with the known safety profile of zanubrutinib.

Study details: Findings are from an updated pooled analysis of 112 patients from the BGB-3111-AU-003 and BGB-3111-206 clinical trials who had relapsed or refractory MCL and received second-line (n = 41) or later-line (n = 71) zanubrutinib.

Disclosures: The BGB-3111-AU-003 and BGB-3111-206 trials were sponsored by BeiGene. C Fang and S Sun declared being employees of BeiGene Co., Ltd., China. The other authors declared no conflicts of interest.

Source: Song Y et al. Long-term outcomes of second-line versus later-line zanubrutinib treatment in patients with relapsed/refractory mantle cell lymphoma: An updated pooled analysis. Cancer Med. 2023;12(18):18643-18653 (Sep 14). doi: 10.1002/cam4.6473

Key clinical point: Second-line vs later-line zanubrutinib treatment leads to significantly improved long-term survival outcomes in patients with relapsed or refractory mantle cell lymphoma (MCL).

Major finding: At a median follow-up of 35.2 months, patients receiving second-line vs later-line zanubrutinib had significantly improved median overall survival (adjusted hazard ratio 0.459; P = .044) and numerically longer median progression-free survival (27.8 vs 22.1 months). Adverse events observed in both groups were consistent with the known safety profile of zanubrutinib.

Study details: Findings are from an updated pooled analysis of 112 patients from the BGB-3111-AU-003 and BGB-3111-206 clinical trials who had relapsed or refractory MCL and received second-line (n = 41) or later-line (n = 71) zanubrutinib.

Disclosures: The BGB-3111-AU-003 and BGB-3111-206 trials were sponsored by BeiGene. C Fang and S Sun declared being employees of BeiGene Co., Ltd., China. The other authors declared no conflicts of interest.

Source: Song Y et al. Long-term outcomes of second-line versus later-line zanubrutinib treatment in patients with relapsed/refractory mantle cell lymphoma: An updated pooled analysis. Cancer Med. 2023;12(18):18643-18653 (Sep 14). doi: 10.1002/cam4.6473

Key clinical point: Second-line vs later-line zanubrutinib treatment leads to significantly improved long-term survival outcomes in patients with relapsed or refractory mantle cell lymphoma (MCL).

Major finding: At a median follow-up of 35.2 months, patients receiving second-line vs later-line zanubrutinib had significantly improved median overall survival (adjusted hazard ratio 0.459; P = .044) and numerically longer median progression-free survival (27.8 vs 22.1 months). Adverse events observed in both groups were consistent with the known safety profile of zanubrutinib.

Study details: Findings are from an updated pooled analysis of 112 patients from the BGB-3111-AU-003 and BGB-3111-206 clinical trials who had relapsed or refractory MCL and received second-line (n = 41) or later-line (n = 71) zanubrutinib.

Disclosures: The BGB-3111-AU-003 and BGB-3111-206 trials were sponsored by BeiGene. C Fang and S Sun declared being employees of BeiGene Co., Ltd., China. The other authors declared no conflicts of interest.

Source: Song Y et al. Long-term outcomes of second-line versus later-line zanubrutinib treatment in patients with relapsed/refractory mantle cell lymphoma: An updated pooled analysis. Cancer Med. 2023;12(18):18643-18653 (Sep 14). doi: 10.1002/cam4.6473