Hematologic Malignancies

Case Presentation

A 75-year-old man with chronic kidney disease, hypertension and diabetes mellitus presented with acute kidney injury (creatinine 5.2 from baseline 4.2) and a two-week history of increased urinary frequency. Labs revealed high anion gap metabolic acidosis, proteinuria, hematuria, pyuria, and acute on chronic anemia. He was diagnosed with kappa light chain nephropathy and multiple myeloma with 32% plasma cells on bone marrow biopsy. He began treatment with bortezomib, cyclophosphamide, and dexamethasone (Cy- BorD). Three days after cyclophosphamide and five days after bortezomib, the patient developed persistent hypotension with systolic BP in the 50s, unresponsive to fluids and Trendelenburg position. Due to end-stage renal disease with anuria, fluid resuscitation was limited. He required norepinephrine and was transferred to the ICU. Given instability, hemodialysis was deferred, and continuous renal replacement therapy was initiated. Shock evaluation included a CT abdomen showing enteritis versus ileus; however, infectious workup was negative. Cardiogenic shock was ruled out with a serial echocardiogram showing normal ejection fractions of 59-67% without significant valvular disease. The workup for adrenal insufficiency was negative. After the exclusion of other potential causes of shock, severe refractory hypotension was attributed to bortezomib toxicity.Hypotension is a known adverse effect of bortezomib. Orthostatic hypotension may occur in 8 to 9% of patients, and rarely, patients may experience heart failure, conduction disorders and arrhythmias, or cardiogenic shock. The pathologic mechanism of this toxicity is still poorly understood. Proposed mechanisms include direct endothelial toxicity as evidenced by thrombotic microangiopathy or impairment of sympathetic and parasympathetic nerve fibres. Most commonly, patients experience neurotoxicity, which may manifest as autonomic dysfunction or peripheral neuropathy. Cardiovascular complications are typically reversible. Our patient’s cardiac function remained within normal limits; therefore, his persistent hypotension was felt to be the result of direct toxicity from bortezomib rather than cardiogenic shock. Ultimately, blood pressure did improve, and vasopressors were discontinued. However, he continued to have orthostatic hypotension and continued to require supportive fludrocortisone, midodrine, and pyridostigmine. Goals of care have been discussed, and he wished to continue pursuing restorative care, with a plan for transition to carfilzomib versus daratumumab outpatient.

Case Presentation

A 75-year-old man with chronic kidney disease, hypertension and diabetes mellitus presented with acute kidney injury (creatinine 5.2 from baseline 4.2) and a two-week history of increased urinary frequency. Labs revealed high anion gap metabolic acidosis, proteinuria, hematuria, pyuria, and acute on chronic anemia. He was diagnosed with kappa light chain nephropathy and multiple myeloma with 32% plasma cells on bone marrow biopsy. He began treatment with bortezomib, cyclophosphamide, and dexamethasone (Cy- BorD). Three days after cyclophosphamide and five days after bortezomib, the patient developed persistent hypotension with systolic BP in the 50s, unresponsive to fluids and Trendelenburg position. Due to end-stage renal disease with anuria, fluid resuscitation was limited. He required norepinephrine and was transferred to the ICU. Given instability, hemodialysis was deferred, and continuous renal replacement therapy was initiated. Shock evaluation included a CT abdomen showing enteritis versus ileus; however, infectious workup was negative. Cardiogenic shock was ruled out with a serial echocardiogram showing normal ejection fractions of 59-67% without significant valvular disease. The workup for adrenal insufficiency was negative. After the exclusion of other potential causes of shock, severe refractory hypotension was attributed to bortezomib toxicity.Hypotension is a known adverse effect of bortezomib. Orthostatic hypotension may occur in 8 to 9% of patients, and rarely, patients may experience heart failure, conduction disorders and arrhythmias, or cardiogenic shock. The pathologic mechanism of this toxicity is still poorly understood. Proposed mechanisms include direct endothelial toxicity as evidenced by thrombotic microangiopathy or impairment of sympathetic and parasympathetic nerve fibres. Most commonly, patients experience neurotoxicity, which may manifest as autonomic dysfunction or peripheral neuropathy. Cardiovascular complications are typically reversible. Our patient’s cardiac function remained within normal limits; therefore, his persistent hypotension was felt to be the result of direct toxicity from bortezomib rather than cardiogenic shock. Ultimately, blood pressure did improve, and vasopressors were discontinued. However, he continued to have orthostatic hypotension and continued to require supportive fludrocortisone, midodrine, and pyridostigmine. Goals of care have been discussed, and he wished to continue pursuing restorative care, with a plan for transition to carfilzomib versus daratumumab outpatient.

Case Presentation

A 75-year-old man with chronic kidney disease, hypertension and diabetes mellitus presented with acute kidney injury (creatinine 5.2 from baseline 4.2) and a two-week history of increased urinary frequency. Labs revealed high anion gap metabolic acidosis, proteinuria, hematuria, pyuria, and acute on chronic anemia. He was diagnosed with kappa light chain nephropathy and multiple myeloma with 32% plasma cells on bone marrow biopsy. He began treatment with bortezomib, cyclophosphamide, and dexamethasone (Cy- BorD). Three days after cyclophosphamide and five days after bortezomib, the patient developed persistent hypotension with systolic BP in the 50s, unresponsive to fluids and Trendelenburg position. Due to end-stage renal disease with anuria, fluid resuscitation was limited. He required norepinephrine and was transferred to the ICU. Given instability, hemodialysis was deferred, and continuous renal replacement therapy was initiated. Shock evaluation included a CT abdomen showing enteritis versus ileus; however, infectious workup was negative. Cardiogenic shock was ruled out with a serial echocardiogram showing normal ejection fractions of 59-67% without significant valvular disease. The workup for adrenal insufficiency was negative. After the exclusion of other potential causes of shock, severe refractory hypotension was attributed to bortezomib toxicity.Hypotension is a known adverse effect of bortezomib. Orthostatic hypotension may occur in 8 to 9% of patients, and rarely, patients may experience heart failure, conduction disorders and arrhythmias, or cardiogenic shock. The pathologic mechanism of this toxicity is still poorly understood. Proposed mechanisms include direct endothelial toxicity as evidenced by thrombotic microangiopathy or impairment of sympathetic and parasympathetic nerve fibres. Most commonly, patients experience neurotoxicity, which may manifest as autonomic dysfunction or peripheral neuropathy. Cardiovascular complications are typically reversible. Our patient’s cardiac function remained within normal limits; therefore, his persistent hypotension was felt to be the result of direct toxicity from bortezomib rather than cardiogenic shock. Ultimately, blood pressure did improve, and vasopressors were discontinued. However, he continued to have orthostatic hypotension and continued to require supportive fludrocortisone, midodrine, and pyridostigmine. Goals of care have been discussed, and he wished to continue pursuing restorative care, with a plan for transition to carfilzomib versus daratumumab outpatient.

Background

Marginal zone lymphoma (MZL) is an indolent B-cell non-Hodgkin lymphoma most commonly arising in mucosal, nodal, or splenic tissues. While extranodal presentations are recognized, involvement of the sciatic foramen is exceedingly rare. We present a unique case of stage IV MZL with primary involvement of the left sciatic foramen, identified incidentally during urologic evaluation.

Case Presentation

A 74-year-old male patient was referred for hematologic evaluation after imaging revealed a left sciatic foraminal mass during work-up for elevated PSA. CT abdomen/pelvis revealed a 4.7 cm mass in the left sciatic foramen. Follow-up PET-CT confirmed hypermetabolic activity in the mass, with additional areas of uptake in the right ilium and pleural- pericardial regions. The patient was asymptomatic and denied B-symptoms. CT-guided biopsy of the sciatic mass revealed low-grade B-cell lymphoma. Flow cytometry showed a CD20-positive, CD5-negative, CD10-negative, lambda light chain–restricted population consistent with marginal zone lymphoma. Laboratory studies demonstrated iron deficiency anemia, with otherwise unremarkable counts and chemistries. He was started on monotherapy with rituximab for four cycles. He tolerated treatment well. Interval PET imaging in April 2025 showed stable disease in the sciatic foramen and mild improvement in pleural- pericardial uptake. He is planned to start obinutuzumab in the upcoming month.

Discussion

This case illustrates a rare anatomic presentation of MZL, likely representing primary sciatic foramen involvement. The presence of additional PETavid lesions complicates staging, raising consideration of stage I vs. III/IV disease. Biopsy was limited to the sciatic lesion, and no bone marrow sampling was performed. Given the patient’s excellent performance status, absence of symptoms, and low tumor burden, single-agent rituximab was chosen initially in accordance with NCCN guidelines.

Conclusions

Sciatic foramen involvement by MZL is an extremely rare occurrence and may mimic more common soft tissue or neurogenic tumors radiographically. This case underscores the importance of biopsy for diagnosis and the value of multidisciplinary care. In the veteran population, such incidental findings on imaging warrant comprehensive evaluation, particularly in atypical anatomical sites.

Background

Marginal zone lymphoma (MZL) is an indolent B-cell non-Hodgkin lymphoma most commonly arising in mucosal, nodal, or splenic tissues. While extranodal presentations are recognized, involvement of the sciatic foramen is exceedingly rare. We present a unique case of stage IV MZL with primary involvement of the left sciatic foramen, identified incidentally during urologic evaluation.

Case Presentation

A 74-year-old male patient was referred for hematologic evaluation after imaging revealed a left sciatic foraminal mass during work-up for elevated PSA. CT abdomen/pelvis revealed a 4.7 cm mass in the left sciatic foramen. Follow-up PET-CT confirmed hypermetabolic activity in the mass, with additional areas of uptake in the right ilium and pleural- pericardial regions. The patient was asymptomatic and denied B-symptoms. CT-guided biopsy of the sciatic mass revealed low-grade B-cell lymphoma. Flow cytometry showed a CD20-positive, CD5-negative, CD10-negative, lambda light chain–restricted population consistent with marginal zone lymphoma. Laboratory studies demonstrated iron deficiency anemia, with otherwise unremarkable counts and chemistries. He was started on monotherapy with rituximab for four cycles. He tolerated treatment well. Interval PET imaging in April 2025 showed stable disease in the sciatic foramen and mild improvement in pleural- pericardial uptake. He is planned to start obinutuzumab in the upcoming month.

Discussion

This case illustrates a rare anatomic presentation of MZL, likely representing primary sciatic foramen involvement. The presence of additional PETavid lesions complicates staging, raising consideration of stage I vs. III/IV disease. Biopsy was limited to the sciatic lesion, and no bone marrow sampling was performed. Given the patient’s excellent performance status, absence of symptoms, and low tumor burden, single-agent rituximab was chosen initially in accordance with NCCN guidelines.

Conclusions

Sciatic foramen involvement by MZL is an extremely rare occurrence and may mimic more common soft tissue or neurogenic tumors radiographically. This case underscores the importance of biopsy for diagnosis and the value of multidisciplinary care. In the veteran population, such incidental findings on imaging warrant comprehensive evaluation, particularly in atypical anatomical sites.

Background

Marginal zone lymphoma (MZL) is an indolent B-cell non-Hodgkin lymphoma most commonly arising in mucosal, nodal, or splenic tissues. While extranodal presentations are recognized, involvement of the sciatic foramen is exceedingly rare. We present a unique case of stage IV MZL with primary involvement of the left sciatic foramen, identified incidentally during urologic evaluation.

Case Presentation

A 74-year-old male patient was referred for hematologic evaluation after imaging revealed a left sciatic foraminal mass during work-up for elevated PSA. CT abdomen/pelvis revealed a 4.7 cm mass in the left sciatic foramen. Follow-up PET-CT confirmed hypermetabolic activity in the mass, with additional areas of uptake in the right ilium and pleural- pericardial regions. The patient was asymptomatic and denied B-symptoms. CT-guided biopsy of the sciatic mass revealed low-grade B-cell lymphoma. Flow cytometry showed a CD20-positive, CD5-negative, CD10-negative, lambda light chain–restricted population consistent with marginal zone lymphoma. Laboratory studies demonstrated iron deficiency anemia, with otherwise unremarkable counts and chemistries. He was started on monotherapy with rituximab for four cycles. He tolerated treatment well. Interval PET imaging in April 2025 showed stable disease in the sciatic foramen and mild improvement in pleural- pericardial uptake. He is planned to start obinutuzumab in the upcoming month.

Discussion

This case illustrates a rare anatomic presentation of MZL, likely representing primary sciatic foramen involvement. The presence of additional PETavid lesions complicates staging, raising consideration of stage I vs. III/IV disease. Biopsy was limited to the sciatic lesion, and no bone marrow sampling was performed. Given the patient’s excellent performance status, absence of symptoms, and low tumor burden, single-agent rituximab was chosen initially in accordance with NCCN guidelines.

Conclusions

Sciatic foramen involvement by MZL is an extremely rare occurrence and may mimic more common soft tissue or neurogenic tumors radiographically. This case underscores the importance of biopsy for diagnosis and the value of multidisciplinary care. In the veteran population, such incidental findings on imaging warrant comprehensive evaluation, particularly in atypical anatomical sites.

Individuals working near intercontinental ballistic missiles (ICBMs), may be at higher risk of developing non-Hodgkin lymphoma (NHL) according to a preprint analysis conducted on missileers at Malmstrom Air Force Base in Montana. The study, which has not undergone peer review, found higher rates of NHL diagnosis at younger ages compared with the general population. The study also found a statistically significant increase in NHL diagnoses among older missileers, with such rates surpassing expected benchmarks.

The findings build on anecdotal and evidentiary data gathered in the last 50-plus years, including from the Torchlight Initiative, established in 2023 to collect self-reported cancer diagnoses and related fatalities from personnel and family members associated with the ICBM community. 

The report shows patterns that “warranted a detailed statistical analysis,” leading to a granular examination of the registry and categorization of the data by cancer type, geographical location, and specific demographics. This narrowed the focus to 18 missileers who served at Malmstrom and were diagnosed with NHL.

In 2001, the Air Force Institute for Operational Health did a site evaluation and sampled for potential chemical and biological contaminants at Malmstrom following various reports of cancers from missileers, including 2 who died after being diagnosed with NHL. In a 2005 review, the Air Force said, “there is not sufficient evidence to consider the possibility of a cancer clustering to justify further investigation.” 

In 2022, Lt. Col. Daniel Sebeck, a vice commander of Space Delta 8 in Colorado who served at Malmstrom and a close friend and fellow missileer were diagnosed with NHL. Sebeck discovered 36 cancer cases among missileers who had been stationed at Malmstrom. Ten developed NHL, 2 developed Hodgkin lymphoma, and 24 developed another form of cancer. The Air Force has acknowledged the concerns. 

In 2023, US Air Force School of Aerospace Medicine (USAFSAM) approved the Missile Community Cancer Study (MCCS) to assess “specific cancer concerns raised by missile community members across related career fields and also examines the possibility of clusters of non-Hodgkin’s lymphoma at intercontinental ballistic missile bases.” The study compares 14 common cancers in the general population with that of missile-related career fields. The USAFSAM is reviewing records from former and current Missile Community members on active duty from 1976-2010, as well as state and national cancer data from multiple registries.

Early results from the MCCS suggested elevated rates of some cancers—mainly breast and prostate cancer—among missileers, maintainers, and other ICMB-related job positions, which aligns with other national cancer data.

At a June 2024 AFGSC town hall, officials announced that missileers would now have their information submitted to the Defense Occupational and Environmental Health Readiness System (DOEHRS), a Pentagon database for reporting occupational and exposure hazards.

"This info from DOEHRS flows into the recently developed Individual Longitudinal Exposure Record, a system that compiles occupational and environmental health data throughout a person's career," Lt. Col. John Severns, a spokesperson for Air Force Global Strike Command, said. DOEHRS, which has tracked Air Force records since 2010, allows US Department of Defense and US Department of Veterans Affairs clinical staff to access the information.

MCCS considers potential PCB exposures an occupational hazard. The Air Force says researchers are working with the System Program Offices and leadership to determine the timeframe of PCB removal from bases.

The lack of incontrovertible evidence connecting workplace toxins to NHL has often stymied patients and their family members from receiving appropriate benefits. An “informal talk” in April led by Rep. Mark Takano (D-CA) and Sen. Richard Blumenthal (D-CT) focused on exposures to hazardous materials at US military bases. Participants included various advocacy groups like the Torchlight Initiative, the Invisible Enemy, and Burn Pits 360.

More than a dozen veterans spoke about serving at military bases where they were exposed to a variety of harmful substances, and issues they faced in receiving coverage. David Crete, a veteran and chairman of The Invisible Enemy, said, “I am asking Congress to please allow us to get the benefits every other veteran earned. We are not asking to be special but to be treated equal.”

Rep. Takano called for greater focus on toxic exposures at US military bases: “We must push back against the idea that service members are only in harm’s way in war zones.”

Individuals working near intercontinental ballistic missiles (ICBMs), may be at higher risk of developing non-Hodgkin lymphoma (NHL) according to a preprint analysis conducted on missileers at Malmstrom Air Force Base in Montana. The study, which has not undergone peer review, found higher rates of NHL diagnosis at younger ages compared with the general population. The study also found a statistically significant increase in NHL diagnoses among older missileers, with such rates surpassing expected benchmarks.

The findings build on anecdotal and evidentiary data gathered in the last 50-plus years, including from the Torchlight Initiative, established in 2023 to collect self-reported cancer diagnoses and related fatalities from personnel and family members associated with the ICBM community. 

The report shows patterns that “warranted a detailed statistical analysis,” leading to a granular examination of the registry and categorization of the data by cancer type, geographical location, and specific demographics. This narrowed the focus to 18 missileers who served at Malmstrom and were diagnosed with NHL.

In 2001, the Air Force Institute for Operational Health did a site evaluation and sampled for potential chemical and biological contaminants at Malmstrom following various reports of cancers from missileers, including 2 who died after being diagnosed with NHL. In a 2005 review, the Air Force said, “there is not sufficient evidence to consider the possibility of a cancer clustering to justify further investigation.” 

In 2022, Lt. Col. Daniel Sebeck, a vice commander of Space Delta 8 in Colorado who served at Malmstrom and a close friend and fellow missileer were diagnosed with NHL. Sebeck discovered 36 cancer cases among missileers who had been stationed at Malmstrom. Ten developed NHL, 2 developed Hodgkin lymphoma, and 24 developed another form of cancer. The Air Force has acknowledged the concerns. 

In 2023, US Air Force School of Aerospace Medicine (USAFSAM) approved the Missile Community Cancer Study (MCCS) to assess “specific cancer concerns raised by missile community members across related career fields and also examines the possibility of clusters of non-Hodgkin’s lymphoma at intercontinental ballistic missile bases.” The study compares 14 common cancers in the general population with that of missile-related career fields. The USAFSAM is reviewing records from former and current Missile Community members on active duty from 1976-2010, as well as state and national cancer data from multiple registries.

Early results from the MCCS suggested elevated rates of some cancers—mainly breast and prostate cancer—among missileers, maintainers, and other ICMB-related job positions, which aligns with other national cancer data.

At a June 2024 AFGSC town hall, officials announced that missileers would now have their information submitted to the Defense Occupational and Environmental Health Readiness System (DOEHRS), a Pentagon database for reporting occupational and exposure hazards.

"This info from DOEHRS flows into the recently developed Individual Longitudinal Exposure Record, a system that compiles occupational and environmental health data throughout a person's career," Lt. Col. John Severns, a spokesperson for Air Force Global Strike Command, said. DOEHRS, which has tracked Air Force records since 2010, allows US Department of Defense and US Department of Veterans Affairs clinical staff to access the information.

MCCS considers potential PCB exposures an occupational hazard. The Air Force says researchers are working with the System Program Offices and leadership to determine the timeframe of PCB removal from bases.

The lack of incontrovertible evidence connecting workplace toxins to NHL has often stymied patients and their family members from receiving appropriate benefits. An “informal talk” in April led by Rep. Mark Takano (D-CA) and Sen. Richard Blumenthal (D-CT) focused on exposures to hazardous materials at US military bases. Participants included various advocacy groups like the Torchlight Initiative, the Invisible Enemy, and Burn Pits 360.

More than a dozen veterans spoke about serving at military bases where they were exposed to a variety of harmful substances, and issues they faced in receiving coverage. David Crete, a veteran and chairman of The Invisible Enemy, said, “I am asking Congress to please allow us to get the benefits every other veteran earned. We are not asking to be special but to be treated equal.”

Rep. Takano called for greater focus on toxic exposures at US military bases: “We must push back against the idea that service members are only in harm’s way in war zones.”

Individuals working near intercontinental ballistic missiles (ICBMs), may be at higher risk of developing non-Hodgkin lymphoma (NHL) according to a preprint analysis conducted on missileers at Malmstrom Air Force Base in Montana. The study, which has not undergone peer review, found higher rates of NHL diagnosis at younger ages compared with the general population. The study also found a statistically significant increase in NHL diagnoses among older missileers, with such rates surpassing expected benchmarks.

The findings build on anecdotal and evidentiary data gathered in the last 50-plus years, including from the Torchlight Initiative, established in 2023 to collect self-reported cancer diagnoses and related fatalities from personnel and family members associated with the ICBM community. 

The report shows patterns that “warranted a detailed statistical analysis,” leading to a granular examination of the registry and categorization of the data by cancer type, geographical location, and specific demographics. This narrowed the focus to 18 missileers who served at Malmstrom and were diagnosed with NHL.

In 2001, the Air Force Institute for Operational Health did a site evaluation and sampled for potential chemical and biological contaminants at Malmstrom following various reports of cancers from missileers, including 2 who died after being diagnosed with NHL. In a 2005 review, the Air Force said, “there is not sufficient evidence to consider the possibility of a cancer clustering to justify further investigation.” 

In 2022, Lt. Col. Daniel Sebeck, a vice commander of Space Delta 8 in Colorado who served at Malmstrom and a close friend and fellow missileer were diagnosed with NHL. Sebeck discovered 36 cancer cases among missileers who had been stationed at Malmstrom. Ten developed NHL, 2 developed Hodgkin lymphoma, and 24 developed another form of cancer. The Air Force has acknowledged the concerns. 

In 2023, US Air Force School of Aerospace Medicine (USAFSAM) approved the Missile Community Cancer Study (MCCS) to assess “specific cancer concerns raised by missile community members across related career fields and also examines the possibility of clusters of non-Hodgkin’s lymphoma at intercontinental ballistic missile bases.” The study compares 14 common cancers in the general population with that of missile-related career fields. The USAFSAM is reviewing records from former and current Missile Community members on active duty from 1976-2010, as well as state and national cancer data from multiple registries.

Early results from the MCCS suggested elevated rates of some cancers—mainly breast and prostate cancer—among missileers, maintainers, and other ICMB-related job positions, which aligns with other national cancer data.

At a June 2024 AFGSC town hall, officials announced that missileers would now have their information submitted to the Defense Occupational and Environmental Health Readiness System (DOEHRS), a Pentagon database for reporting occupational and exposure hazards.

"This info from DOEHRS flows into the recently developed Individual Longitudinal Exposure Record, a system that compiles occupational and environmental health data throughout a person's career," Lt. Col. John Severns, a spokesperson for Air Force Global Strike Command, said. DOEHRS, which has tracked Air Force records since 2010, allows US Department of Defense and US Department of Veterans Affairs clinical staff to access the information.

MCCS considers potential PCB exposures an occupational hazard. The Air Force says researchers are working with the System Program Offices and leadership to determine the timeframe of PCB removal from bases.

The lack of incontrovertible evidence connecting workplace toxins to NHL has often stymied patients and their family members from receiving appropriate benefits. An “informal talk” in April led by Rep. Mark Takano (D-CA) and Sen. Richard Blumenthal (D-CT) focused on exposures to hazardous materials at US military bases. Participants included various advocacy groups like the Torchlight Initiative, the Invisible Enemy, and Burn Pits 360.

More than a dozen veterans spoke about serving at military bases where they were exposed to a variety of harmful substances, and issues they faced in receiving coverage. David Crete, a veteran and chairman of The Invisible Enemy, said, “I am asking Congress to please allow us to get the benefits every other veteran earned. We are not asking to be special but to be treated equal.”

Rep. Takano called for greater focus on toxic exposures at US military bases: “We must push back against the idea that service members are only in harm’s way in war zones.”

Background

Lenalidomide, bortezomib, and dexamethasone (RVD) is standard triplet induction for fit newly-diagnosed myeloma (NDMM) patients, with response rate (RR)>90%. A 21-day cycle with bortezomib given days 1, 4, 8, and 11 (2x/w) is standard. However, up to 80% of patients develop neuropathy. Weekly bortezomib dosing (1x/w), subcutaneous route, and 28- to 35-day cycle length may optimize tolerance. We present an effectiveness and toxicity analysis of Veterans who received RVD with 1x/w and 2x/w bortezomib for NDMM.

Methods

The VA Corporate Data Warehouse identified 1499 Veterans with NDMM given RVD ≤42 days of treatment start. 840 Veterans were grouped for initial analysis based on criteria: 1) lenalidomide and ≥ 3 bortezomib doses during cycle 1; 2) ≥6 mean days between bortezomib treatments=1x/w); and 3) number of lenalidomide days informed cycle length (21d, 28d, or 35d; default 7-day rest). Investigators reviewed algorithm results to finalize group assignments. Endpoints included depth of response, time to next treatment (TTNT), overall survival (OS), and neuropathy. Neuropathy was defined as use of neuropathy medications and neuropathy ICD-10 codes.

Results

Our algorithm correctly assigned 82% of 840 cycle 1 RVD schedules. The largest groups were 21d 1x/w (n=291), 21d 2x/w (n=193), 28d 1x/w (n=188), and 28d 2x/w (n=82). Median age was 68.3; 53% were non-Hispanic White. Demographics and ISS stage of groups were similar. 30% underwent autologous transplant. Tolerability. Median number of bortezomib doses ranged from 22.5-25.5 (p=0.57). Neuropathy favored 1x/w, 17.7 vs 30.2% (p=0.0001) and was highest (34.7%) in 21d 2x/w. Effectiveness. Response was assessable for 28% of patients. RR (72%, p=0.68) and median TTNT (19.3 months, p=0.20) were similar, including 1x/w vs 2x/w comparison (p=0.79). 21d regimens optimized TTNT (21.4 vs 13.9 months, p=0.045) and trended to better OS (73 vs 65 months, p=0.06).

Conclusions

1x/w RVD preserved effectiveness compared to “standard” RVD in a large Veteran cohort. 1x/w reduced neuropathy incidence. 28d regimens demonstrated inferior longer-term outcomes. Certain endpoints, such as RR and neuropathy, appear underestimated due to data source limitations. 21d 1x/w RVD optimizes effectiveness, tolerability, and administration and should be considered for broader utilization in Veterans with NDMM.

Background

Lenalidomide, bortezomib, and dexamethasone (RVD) is standard triplet induction for fit newly-diagnosed myeloma (NDMM) patients, with response rate (RR)>90%. A 21-day cycle with bortezomib given days 1, 4, 8, and 11 (2x/w) is standard. However, up to 80% of patients develop neuropathy. Weekly bortezomib dosing (1x/w), subcutaneous route, and 28- to 35-day cycle length may optimize tolerance. We present an effectiveness and toxicity analysis of Veterans who received RVD with 1x/w and 2x/w bortezomib for NDMM.

Methods

The VA Corporate Data Warehouse identified 1499 Veterans with NDMM given RVD ≤42 days of treatment start. 840 Veterans were grouped for initial analysis based on criteria: 1) lenalidomide and ≥ 3 bortezomib doses during cycle 1; 2) ≥6 mean days between bortezomib treatments=1x/w); and 3) number of lenalidomide days informed cycle length (21d, 28d, or 35d; default 7-day rest). Investigators reviewed algorithm results to finalize group assignments. Endpoints included depth of response, time to next treatment (TTNT), overall survival (OS), and neuropathy. Neuropathy was defined as use of neuropathy medications and neuropathy ICD-10 codes.

Results

Our algorithm correctly assigned 82% of 840 cycle 1 RVD schedules. The largest groups were 21d 1x/w (n=291), 21d 2x/w (n=193), 28d 1x/w (n=188), and 28d 2x/w (n=82). Median age was 68.3; 53% were non-Hispanic White. Demographics and ISS stage of groups were similar. 30% underwent autologous transplant. Tolerability. Median number of bortezomib doses ranged from 22.5-25.5 (p=0.57). Neuropathy favored 1x/w, 17.7 vs 30.2% (p=0.0001) and was highest (34.7%) in 21d 2x/w. Effectiveness. Response was assessable for 28% of patients. RR (72%, p=0.68) and median TTNT (19.3 months, p=0.20) were similar, including 1x/w vs 2x/w comparison (p=0.79). 21d regimens optimized TTNT (21.4 vs 13.9 months, p=0.045) and trended to better OS (73 vs 65 months, p=0.06).

Conclusions

1x/w RVD preserved effectiveness compared to “standard” RVD in a large Veteran cohort. 1x/w reduced neuropathy incidence. 28d regimens demonstrated inferior longer-term outcomes. Certain endpoints, such as RR and neuropathy, appear underestimated due to data source limitations. 21d 1x/w RVD optimizes effectiveness, tolerability, and administration and should be considered for broader utilization in Veterans with NDMM.

Background

Lenalidomide, bortezomib, and dexamethasone (RVD) is standard triplet induction for fit newly-diagnosed myeloma (NDMM) patients, with response rate (RR)>90%. A 21-day cycle with bortezomib given days 1, 4, 8, and 11 (2x/w) is standard. However, up to 80% of patients develop neuropathy. Weekly bortezomib dosing (1x/w), subcutaneous route, and 28- to 35-day cycle length may optimize tolerance. We present an effectiveness and toxicity analysis of Veterans who received RVD with 1x/w and 2x/w bortezomib for NDMM.

Methods

The VA Corporate Data Warehouse identified 1499 Veterans with NDMM given RVD ≤42 days of treatment start. 840 Veterans were grouped for initial analysis based on criteria: 1) lenalidomide and ≥ 3 bortezomib doses during cycle 1; 2) ≥6 mean days between bortezomib treatments=1x/w); and 3) number of lenalidomide days informed cycle length (21d, 28d, or 35d; default 7-day rest). Investigators reviewed algorithm results to finalize group assignments. Endpoints included depth of response, time to next treatment (TTNT), overall survival (OS), and neuropathy. Neuropathy was defined as use of neuropathy medications and neuropathy ICD-10 codes.

Results

Our algorithm correctly assigned 82% of 840 cycle 1 RVD schedules. The largest groups were 21d 1x/w (n=291), 21d 2x/w (n=193), 28d 1x/w (n=188), and 28d 2x/w (n=82). Median age was 68.3; 53% were non-Hispanic White. Demographics and ISS stage of groups were similar. 30% underwent autologous transplant. Tolerability. Median number of bortezomib doses ranged from 22.5-25.5 (p=0.57). Neuropathy favored 1x/w, 17.7 vs 30.2% (p=0.0001) and was highest (34.7%) in 21d 2x/w. Effectiveness. Response was assessable for 28% of patients. RR (72%, p=0.68) and median TTNT (19.3 months, p=0.20) were similar, including 1x/w vs 2x/w comparison (p=0.79). 21d regimens optimized TTNT (21.4 vs 13.9 months, p=0.045) and trended to better OS (73 vs 65 months, p=0.06).

Conclusions

1x/w RVD preserved effectiveness compared to “standard” RVD in a large Veteran cohort. 1x/w reduced neuropathy incidence. 28d regimens demonstrated inferior longer-term outcomes. Certain endpoints, such as RR and neuropathy, appear underestimated due to data source limitations. 21d 1x/w RVD optimizes effectiveness, tolerability, and administration and should be considered for broader utilization in Veterans with NDMM.

Introduction

Priapism, defined as a prolonged and often painful penile erection without sexual arousal, constitutes a urological emergency requiring immediate intervention. While commonly associated with conditions like sickle cell anemia and certain medications, malignancy-related priapism is rare and frequently overlooked. Herein, we present a unique case of a 31-year-old male with no significant medical history, who developed persistent priapism as the initial presentation of chronic myeloid leukemia (CML).

Case Presentation

A 31-year-old male without significant medical history, presented to the emergency department with painless priapism, was evaluated by urology and discharged home with precautions. He returned the following day with persistent, now painful priapism. Upon examination, his vital signs were stable. Urology performed aspiration and injection with Sudafed, resulting in mild symptom improvement. Laboratory findings revealed elevated white blood cell count (563.64 k/mcL), anemia (hemoglobin 8.4 g/dL), and a peripheral blood smear showed immature circulating cells with blast forms. He was transferred to a tertiary care center where conservative management addressed bleeding from the penile injection site, with subsequent treatment including leukapheresis and hydroxyurea for cytoreduction. Imaging revealed severe splenomegaly (36 cm) with abdominal mass effect. Peripheral flow cytometry didn’t show malignancy, but cytogenetic analysis showed a BCR/ABL1 fusion gene, confirming chronic myeloid leukemia (CML). Bone marrow biopsy showed hypercellularity without increased blasts. Treatment with dasatinib reduced the white count to 52,000 k/mcL, and was discharged home.

Discussion

Priapism is a urological emergency necessitating immediate intervention to prevent erectile dysfunction and permanent impotence. Management aims to achieve detumescence and typically involves methods such as irrigation or injection of vasoconstrictors into the penis. Malignancy-associated priapism (MAP) often results from venous obstruction due to hyperviscosity. Studies show that CML accounts for approximately 50% cases presenting with MAP, predominantly affecting younger individuals with a mean onset around 27 years of age. Priapism can occur before, during, or after treatment initiation or splenectomy in these patients. Providers should keep a high threshold of suspicion for MAP in patients with no other risk factors as prompt identification and treatment are needed to avoid permanent injury.

Introduction

Priapism, defined as a prolonged and often painful penile erection without sexual arousal, constitutes a urological emergency requiring immediate intervention. While commonly associated with conditions like sickle cell anemia and certain medications, malignancy-related priapism is rare and frequently overlooked. Herein, we present a unique case of a 31-year-old male with no significant medical history, who developed persistent priapism as the initial presentation of chronic myeloid leukemia (CML).

Case Presentation

A 31-year-old male without significant medical history, presented to the emergency department with painless priapism, was evaluated by urology and discharged home with precautions. He returned the following day with persistent, now painful priapism. Upon examination, his vital signs were stable. Urology performed aspiration and injection with Sudafed, resulting in mild symptom improvement. Laboratory findings revealed elevated white blood cell count (563.64 k/mcL), anemia (hemoglobin 8.4 g/dL), and a peripheral blood smear showed immature circulating cells with blast forms. He was transferred to a tertiary care center where conservative management addressed bleeding from the penile injection site, with subsequent treatment including leukapheresis and hydroxyurea for cytoreduction. Imaging revealed severe splenomegaly (36 cm) with abdominal mass effect. Peripheral flow cytometry didn’t show malignancy, but cytogenetic analysis showed a BCR/ABL1 fusion gene, confirming chronic myeloid leukemia (CML). Bone marrow biopsy showed hypercellularity without increased blasts. Treatment with dasatinib reduced the white count to 52,000 k/mcL, and was discharged home.

Discussion

Priapism is a urological emergency necessitating immediate intervention to prevent erectile dysfunction and permanent impotence. Management aims to achieve detumescence and typically involves methods such as irrigation or injection of vasoconstrictors into the penis. Malignancy-associated priapism (MAP) often results from venous obstruction due to hyperviscosity. Studies show that CML accounts for approximately 50% cases presenting with MAP, predominantly affecting younger individuals with a mean onset around 27 years of age. Priapism can occur before, during, or after treatment initiation or splenectomy in these patients. Providers should keep a high threshold of suspicion for MAP in patients with no other risk factors as prompt identification and treatment are needed to avoid permanent injury.

Introduction

Priapism, defined as a prolonged and often painful penile erection without sexual arousal, constitutes a urological emergency requiring immediate intervention. While commonly associated with conditions like sickle cell anemia and certain medications, malignancy-related priapism is rare and frequently overlooked. Herein, we present a unique case of a 31-year-old male with no significant medical history, who developed persistent priapism as the initial presentation of chronic myeloid leukemia (CML).

Case Presentation

A 31-year-old male without significant medical history, presented to the emergency department with painless priapism, was evaluated by urology and discharged home with precautions. He returned the following day with persistent, now painful priapism. Upon examination, his vital signs were stable. Urology performed aspiration and injection with Sudafed, resulting in mild symptom improvement. Laboratory findings revealed elevated white blood cell count (563.64 k/mcL), anemia (hemoglobin 8.4 g/dL), and a peripheral blood smear showed immature circulating cells with blast forms. He was transferred to a tertiary care center where conservative management addressed bleeding from the penile injection site, with subsequent treatment including leukapheresis and hydroxyurea for cytoreduction. Imaging revealed severe splenomegaly (36 cm) with abdominal mass effect. Peripheral flow cytometry didn’t show malignancy, but cytogenetic analysis showed a BCR/ABL1 fusion gene, confirming chronic myeloid leukemia (CML). Bone marrow biopsy showed hypercellularity without increased blasts. Treatment with dasatinib reduced the white count to 52,000 k/mcL, and was discharged home.

Discussion

Priapism is a urological emergency necessitating immediate intervention to prevent erectile dysfunction and permanent impotence. Management aims to achieve detumescence and typically involves methods such as irrigation or injection of vasoconstrictors into the penis. Malignancy-associated priapism (MAP) often results from venous obstruction due to hyperviscosity. Studies show that CML accounts for approximately 50% cases presenting with MAP, predominantly affecting younger individuals with a mean onset around 27 years of age. Priapism can occur before, during, or after treatment initiation or splenectomy in these patients. Providers should keep a high threshold of suspicion for MAP in patients with no other risk factors as prompt identification and treatment are needed to avoid permanent injury.

Background

In 2024, the first two veterans, both from the Michael E. DeBakey Veteran Affairs (VA) Medical Center, received chimeric antigen receptors (CAR) T-cell therapy for refractory multiple myeloma through the Tennessee Valley Healthcare System (TVHS). Currently, TVHS is the only VA where this treatment is available. One of these patients also had penta-refractory multiple myeloma (P-RMM), which is associated with significantly worse progression-free survival and overall survival (OS) (Gill et al, 2021). P-RMM is defined as resistance to at least two immunomodulatory drugs, two different proteasome inhibitors, and one CD38 monoclonal antibody.

Case Presentation

A 71-year-old female veteran was diagnosed with high-risk multiple myeloma and received induction therapy with carfilzomib, lenalidomide, and dexamethasone in 2017. She underwent autologous stem cell transplant (SCT) in 4/2018. The veteran subsequently received maintenance therapy with lenalidomide, bortezomib, and dexamethasone. Her disease recurred in 1/2022. The patient then received two more lines of treatments with daratumumab and pomalidomide followed by selinexor. She had another autologous SCT in 5/2023, to which she was refractory. Her fifth line therapy included addition of bortezomib to her selinexor regimen. She eventually underwent CAR T-cell therapy at THVS on 5/1/2024 with good tolerance of therapy. At her follow-up visit, the patient had significant response to CAR T-cell treatment, based on her symptoms and improvement in free light chains and serum protein electrophoresis.

Discussion

CAR T-cell therapy is one of the newest and most cutting-edge therapies for patients with refractory multiple myeloma. Access to this therapy has been limited throughout the country. However, as shown by our case, this life-saving treatment is now available to patients within the VA. According to a retrospective study on P-RMM patients, the OS in patients who received B-cell maturation antigen (BCMA) targeted therapy was significantly higher than in those who did not (17 vs. 6 months, p < 0.0001). Among the BCMA-targeted therapies, CAR T-cell therapy is associated with the highest OS (29 months) compared to antibody-drug conjugates and bispecific T-cell engagers (Atrash et al, 2023). Thus, accessibility to CAR T-cell therapy was essential in our patient with P-RMM in ensuring her best survival outcomes.

Background

In 2024, the first two veterans, both from the Michael E. DeBakey Veteran Affairs (VA) Medical Center, received chimeric antigen receptors (CAR) T-cell therapy for refractory multiple myeloma through the Tennessee Valley Healthcare System (TVHS). Currently, TVHS is the only VA where this treatment is available. One of these patients also had penta-refractory multiple myeloma (P-RMM), which is associated with significantly worse progression-free survival and overall survival (OS) (Gill et al, 2021). P-RMM is defined as resistance to at least two immunomodulatory drugs, two different proteasome inhibitors, and one CD38 monoclonal antibody.

Case Presentation

A 71-year-old female veteran was diagnosed with high-risk multiple myeloma and received induction therapy with carfilzomib, lenalidomide, and dexamethasone in 2017. She underwent autologous stem cell transplant (SCT) in 4/2018. The veteran subsequently received maintenance therapy with lenalidomide, bortezomib, and dexamethasone. Her disease recurred in 1/2022. The patient then received two more lines of treatments with daratumumab and pomalidomide followed by selinexor. She had another autologous SCT in 5/2023, to which she was refractory. Her fifth line therapy included addition of bortezomib to her selinexor regimen. She eventually underwent CAR T-cell therapy at THVS on 5/1/2024 with good tolerance of therapy. At her follow-up visit, the patient had significant response to CAR T-cell treatment, based on her symptoms and improvement in free light chains and serum protein electrophoresis.

Discussion

CAR T-cell therapy is one of the newest and most cutting-edge therapies for patients with refractory multiple myeloma. Access to this therapy has been limited throughout the country. However, as shown by our case, this life-saving treatment is now available to patients within the VA. According to a retrospective study on P-RMM patients, the OS in patients who received B-cell maturation antigen (BCMA) targeted therapy was significantly higher than in those who did not (17 vs. 6 months, p < 0.0001). Among the BCMA-targeted therapies, CAR T-cell therapy is associated with the highest OS (29 months) compared to antibody-drug conjugates and bispecific T-cell engagers (Atrash et al, 2023). Thus, accessibility to CAR T-cell therapy was essential in our patient with P-RMM in ensuring her best survival outcomes.

Background

In 2024, the first two veterans, both from the Michael E. DeBakey Veteran Affairs (VA) Medical Center, received chimeric antigen receptors (CAR) T-cell therapy for refractory multiple myeloma through the Tennessee Valley Healthcare System (TVHS). Currently, TVHS is the only VA where this treatment is available. One of these patients also had penta-refractory multiple myeloma (P-RMM), which is associated with significantly worse progression-free survival and overall survival (OS) (Gill et al, 2021). P-RMM is defined as resistance to at least two immunomodulatory drugs, two different proteasome inhibitors, and one CD38 monoclonal antibody.

Case Presentation

A 71-year-old female veteran was diagnosed with high-risk multiple myeloma and received induction therapy with carfilzomib, lenalidomide, and dexamethasone in 2017. She underwent autologous stem cell transplant (SCT) in 4/2018. The veteran subsequently received maintenance therapy with lenalidomide, bortezomib, and dexamethasone. Her disease recurred in 1/2022. The patient then received two more lines of treatments with daratumumab and pomalidomide followed by selinexor. She had another autologous SCT in 5/2023, to which she was refractory. Her fifth line therapy included addition of bortezomib to her selinexor regimen. She eventually underwent CAR T-cell therapy at THVS on 5/1/2024 with good tolerance of therapy. At her follow-up visit, the patient had significant response to CAR T-cell treatment, based on her symptoms and improvement in free light chains and serum protein electrophoresis.

Discussion

CAR T-cell therapy is one of the newest and most cutting-edge therapies for patients with refractory multiple myeloma. Access to this therapy has been limited throughout the country. However, as shown by our case, this life-saving treatment is now available to patients within the VA. According to a retrospective study on P-RMM patients, the OS in patients who received B-cell maturation antigen (BCMA) targeted therapy was significantly higher than in those who did not (17 vs. 6 months, p < 0.0001). Among the BCMA-targeted therapies, CAR T-cell therapy is associated with the highest OS (29 months) compared to antibody-drug conjugates and bispecific T-cell engagers (Atrash et al, 2023). Thus, accessibility to CAR T-cell therapy was essential in our patient with P-RMM in ensuring her best survival outcomes.

Click to view more from Cancer Data Trends 2024.

Click to view more from Cancer Data Trends 2024.

Click to view more from Cancer Data Trends 2024.