Article

Still, some patients seek alternative or adjunctive treatment approaches, owing to a desire to identify the root cause of disease, their aversion toward Western medicine, or fear of adverse events. Yepes-Nuñez and colleagues performed a systematic review and meta-analysis including 23 studies of benefits and harms of allergen immunotherapy for AD. I had the privilege of participating in this study and can testify to the astronomical amount of work that went into comprehensively identifying all of the relevant studies and synthesizing the data. We found that adjunctive subcutaneous or sublingual allergen immunotherapy, particularly for house dust mites, led to modest but generally delayed improvements of AD severity, itch, and quality of life, and less definitive effects on sleep disturbance and AD flares. Overall, both were well tolerated, though subcutaneous immunotherapy was associated with more adverse events than sublingual immunotherapy. Allergen immunotherapy requires a significant investment of time by patients and was only modestly effective. Nevertheless, it may be a reasonable approach to consider in select patients with AD.

Benjamin Franklin famously stated that "an ounce of prevention is worth a pound of cure." Likewise, while successful treatment of AD is great, how can we advise patients and caregivers of children who are at high risk for AD? To answer this question, Voigt and Lele performed a systematic review and meta-analysis of 11 randomized controlled trials examining the efficacy of Lactobacillus rhamnosus at preventing AD in children when taken by mothers during pregnancy. They found that L. rhamnosus significantly reduced the risk of developing AD within 2 years, marginally significantly reduced risk at 4-5 years, and significantly reduced risk at 6-7 years, but no significant risk differences were observed at 10-11 years. The authors concluded that use of L. rhamnosus with or without other probiotics during pregnancy reduces the incidence of childhood AD at least up to age 7 years.

Wang and colleagues conducted an observational study of the relationship of home environment exposures with atopic disease, including AD, in 17,881 offspring from Iceland, Norway, Sweden, Denmark, and Estonia who had undergone two follow-up investigations every 10 years. They found that AD was associated with parent-reported visible mold and dampness/mold at home, living in an apartment, and living in newer buildings. Avoidance of these environmental exposures could possibly decrease the risk of developing AD, although future confirmatory studies are needed.

For each of these treatment/prevention approaches, the magnitude of benefit is not very large. Thus, these approaches do not replace our armamentarium of treatments and avoidance strategies for AD. Rather, they can be used complementarily as low-risk add-on interventions with a potential upside.

Still, some patients seek alternative or adjunctive treatment approaches, owing to a desire to identify the root cause of disease, their aversion toward Western medicine, or fear of adverse events. Yepes-Nuñez and colleagues performed a systematic review and meta-analysis including 23 studies of benefits and harms of allergen immunotherapy for AD. I had the privilege of participating in this study and can testify to the astronomical amount of work that went into comprehensively identifying all of the relevant studies and synthesizing the data. We found that adjunctive subcutaneous or sublingual allergen immunotherapy, particularly for house dust mites, led to modest but generally delayed improvements of AD severity, itch, and quality of life, and less definitive effects on sleep disturbance and AD flares. Overall, both were well tolerated, though subcutaneous immunotherapy was associated with more adverse events than sublingual immunotherapy. Allergen immunotherapy requires a significant investment of time by patients and was only modestly effective. Nevertheless, it may be a reasonable approach to consider in select patients with AD.

Benjamin Franklin famously stated that "an ounce of prevention is worth a pound of cure." Likewise, while successful treatment of AD is great, how can we advise patients and caregivers of children who are at high risk for AD? To answer this question, Voigt and Lele performed a systematic review and meta-analysis of 11 randomized controlled trials examining the efficacy of Lactobacillus rhamnosus at preventing AD in children when taken by mothers during pregnancy. They found that L. rhamnosus significantly reduced the risk of developing AD within 2 years, marginally significantly reduced risk at 4-5 years, and significantly reduced risk at 6-7 years, but no significant risk differences were observed at 10-11 years. The authors concluded that use of L. rhamnosus with or without other probiotics during pregnancy reduces the incidence of childhood AD at least up to age 7 years.

Wang and colleagues conducted an observational study of the relationship of home environment exposures with atopic disease, including AD, in 17,881 offspring from Iceland, Norway, Sweden, Denmark, and Estonia who had undergone two follow-up investigations every 10 years. They found that AD was associated with parent-reported visible mold and dampness/mold at home, living in an apartment, and living in newer buildings. Avoidance of these environmental exposures could possibly decrease the risk of developing AD, although future confirmatory studies are needed.

For each of these treatment/prevention approaches, the magnitude of benefit is not very large. Thus, these approaches do not replace our armamentarium of treatments and avoidance strategies for AD. Rather, they can be used complementarily as low-risk add-on interventions with a potential upside.

Still, some patients seek alternative or adjunctive treatment approaches, owing to a desire to identify the root cause of disease, their aversion toward Western medicine, or fear of adverse events. Yepes-Nuñez and colleagues performed a systematic review and meta-analysis including 23 studies of benefits and harms of allergen immunotherapy for AD. I had the privilege of participating in this study and can testify to the astronomical amount of work that went into comprehensively identifying all of the relevant studies and synthesizing the data. We found that adjunctive subcutaneous or sublingual allergen immunotherapy, particularly for house dust mites, led to modest but generally delayed improvements of AD severity, itch, and quality of life, and less definitive effects on sleep disturbance and AD flares. Overall, both were well tolerated, though subcutaneous immunotherapy was associated with more adverse events than sublingual immunotherapy. Allergen immunotherapy requires a significant investment of time by patients and was only modestly effective. Nevertheless, it may be a reasonable approach to consider in select patients with AD.

Benjamin Franklin famously stated that "an ounce of prevention is worth a pound of cure." Likewise, while successful treatment of AD is great, how can we advise patients and caregivers of children who are at high risk for AD? To answer this question, Voigt and Lele performed a systematic review and meta-analysis of 11 randomized controlled trials examining the efficacy of Lactobacillus rhamnosus at preventing AD in children when taken by mothers during pregnancy. They found that L. rhamnosus significantly reduced the risk of developing AD within 2 years, marginally significantly reduced risk at 4-5 years, and significantly reduced risk at 6-7 years, but no significant risk differences were observed at 10-11 years. The authors concluded that use of L. rhamnosus with or without other probiotics during pregnancy reduces the incidence of childhood AD at least up to age 7 years.

Wang and colleagues conducted an observational study of the relationship of home environment exposures with atopic disease, including AD, in 17,881 offspring from Iceland, Norway, Sweden, Denmark, and Estonia who had undergone two follow-up investigations every 10 years. They found that AD was associated with parent-reported visible mold and dampness/mold at home, living in an apartment, and living in newer buildings. Avoidance of these environmental exposures could possibly decrease the risk of developing AD, although future confirmatory studies are needed.

For each of these treatment/prevention approaches, the magnitude of benefit is not very large. Thus, these approaches do not replace our armamentarium of treatments and avoidance strategies for AD. Rather, they can be used complementarily as low-risk add-on interventions with a potential upside.

The phase 2 FIGHT trial¹ evaluated the role of bemarituzumab, an anti-FGFR2 antibody, in combination with chemotherapy during first-line treatment of advanced gastroesophageal adenocarcinoma. The primary endpoint of this trial was progression-free survival (PFS). This trial enrolled 155 patients with upper gastrointestinal tumors with FGFR2b overexpression (defined as at least 2+ by immunohistochemistry) or amplification on next-generation sequencing. About 30% of patients with HER2 nonpositive tumors (ie, those that would not qualify for treatment with the targeted agent trastuzumab) were eligible for participation. In the FIGHT trial, patients were randomized in a 1:1 ratio to receive either standard chemotherapy (folinic acid, fluorouracil, and oxaliplatin [FOLFOX]) or chemotherapy plus bemarituzumab. Patients in the experimental group were allowed to receive one dose of standard FOLFOX chemotherapy while biomarker testing was ongoing.

With a median follow-up time of 10.9 moths, PFS was numerically prolonged in the bemarituzumab group (9.5 vs 7.4 months), but it did not reach statistical significance (P = .073). Overall survival (OS) was improved in the experimental group (not reached vs 12.9 months; P = .027). With a longer follow-up of 12.5 months, in post hoc exploratory analysis, OS was significantly longer in the experimental group (19.2 vs 13.5 months; hazard ratio 0.60, P = .027). The rate of serious adverse events was similar between the two groups. However, it is important to note ocular toxicities associated with bemarituzumab treatment. Corneal adverse events were seen in 67% of patients in the experimental group, with 24% of patients experiencing grade 3 events. Moreover, 26% of patients discontinued bemarituzumab because of corneal adverse events.

Overall, this phase 2 trial demonstrated that FGFR2b is emerging as an important biomarker and target in patients with advanced gastroesophageal adenocarcinoma. Ongoing phase 3 trials (FORTITUDE-101 with FOLFOX [NCT05052801] and FORTITUDE-102 with FOLFOX and nivolumab [NCT05111626]) hopefully will confirm the early results seen in the FIGHT trial. Awareness and early attention to treatment-associated toxicities will be critical for the potential future incorporation of bemarituzumab into clinical practice.

A study by Ramos‐Santillan and colleagues explored whether the order of treatment modalities matter in the management of early-stage gastric cancer. Typically, perioperative chemotherapy (both neoadjuvant and adjuvant) is used during treatment of early-stage gastric cancer, which is usually defined as at least cT2N0 or cTxN+ disease. In this study, multivariable Cox regression analyses were performed on propensity score-matched cohorts. The study analyzed outcomes of 11,984 patients who were identified using the US National Cancer Database and treated between 2005 and 2014. The results revealed that patients who had stage I disease had better outcomes with upfront resection followed by adjuvant therapy. Patients with stage III disease did better with a neoadjuvant approach, whereas patients with stage II disease had similar outcomes regardless of chemotherapy timing. This research has the limitations inherent to the retrospective nature of the analysis and lack of prospective enrollment and controls. However, it does suggest that there may be a fraction of patients who should be treated with upfront resection. For incorporation of this change into standard practice, the question of therapy sequencing should be answered in a randomized prospective trial that incorporates the most updated systemic therapy (fluorouracil, leucovorin, oxaliplatin, and docetaxel [FLOT]) into its design.

Chemotherapy continues to play a critical role during first-line treatment of advanced esophageal and gastric adenocarcinoma. Triple chemotherapy regimens have been known to have increased efficacy in this setting, but their use has been limited by associated toxicities. A study by Nguyen and colleagues evaluated the TCX regimen (paclitaxel, carboplatin, and capecitabine) during first-line treatment of advanced gastric cancer. This regimen is similar to other triple chemotherapy regimens, such as FLOT and DCF (docetaxel, cisplatin, and fluorouracil), which have proven activity in this disease. This prospective phase 2 trial enrolled 83 patients. The median PFS (9.3 months) and OS (17 months) compared favorably with historical references. The regimen had expected adverse events, with cytopenias and fatigue being the most frequently reported. On the basis of the reported safety and efficacy, TCX has potential to be used as a chemotherapy backbone in future trials, but larger trials are needed to confirm the phase 2 trial results.

References

Wainberg ZA, Enzinger PC, Kang YK, et al. Bemarituzumab in patients with FGFR2b-selected gastric or gastro-oesophageal junction adenocarcinoma (FIGHT): A randomised, double-blind, placebo-controlled, phase 2 study. Lancet Oncol. 2022 Oct 13. Doi: 10.1016/S1470-2045(22)00603-9

The phase 2 FIGHT trial¹ evaluated the role of bemarituzumab, an anti-FGFR2 antibody, in combination with chemotherapy during first-line treatment of advanced gastroesophageal adenocarcinoma. The primary endpoint of this trial was progression-free survival (PFS). This trial enrolled 155 patients with upper gastrointestinal tumors with FGFR2b overexpression (defined as at least 2+ by immunohistochemistry) or amplification on next-generation sequencing. About 30% of patients with HER2 nonpositive tumors (ie, those that would not qualify for treatment with the targeted agent trastuzumab) were eligible for participation. In the FIGHT trial, patients were randomized in a 1:1 ratio to receive either standard chemotherapy (folinic acid, fluorouracil, and oxaliplatin [FOLFOX]) or chemotherapy plus bemarituzumab. Patients in the experimental group were allowed to receive one dose of standard FOLFOX chemotherapy while biomarker testing was ongoing.

With a median follow-up time of 10.9 moths, PFS was numerically prolonged in the bemarituzumab group (9.5 vs 7.4 months), but it did not reach statistical significance (P = .073). Overall survival (OS) was improved in the experimental group (not reached vs 12.9 months; P = .027). With a longer follow-up of 12.5 months, in post hoc exploratory analysis, OS was significantly longer in the experimental group (19.2 vs 13.5 months; hazard ratio 0.60, P = .027). The rate of serious adverse events was similar between the two groups. However, it is important to note ocular toxicities associated with bemarituzumab treatment. Corneal adverse events were seen in 67% of patients in the experimental group, with 24% of patients experiencing grade 3 events. Moreover, 26% of patients discontinued bemarituzumab because of corneal adverse events.

Overall, this phase 2 trial demonstrated that FGFR2b is emerging as an important biomarker and target in patients with advanced gastroesophageal adenocarcinoma. Ongoing phase 3 trials (FORTITUDE-101 with FOLFOX [NCT05052801] and FORTITUDE-102 with FOLFOX and nivolumab [NCT05111626]) hopefully will confirm the early results seen in the FIGHT trial. Awareness and early attention to treatment-associated toxicities will be critical for the potential future incorporation of bemarituzumab into clinical practice.

A study by Ramos‐Santillan and colleagues explored whether the order of treatment modalities matter in the management of early-stage gastric cancer. Typically, perioperative chemotherapy (both neoadjuvant and adjuvant) is used during treatment of early-stage gastric cancer, which is usually defined as at least cT2N0 or cTxN+ disease. In this study, multivariable Cox regression analyses were performed on propensity score-matched cohorts. The study analyzed outcomes of 11,984 patients who were identified using the US National Cancer Database and treated between 2005 and 2014. The results revealed that patients who had stage I disease had better outcomes with upfront resection followed by adjuvant therapy. Patients with stage III disease did better with a neoadjuvant approach, whereas patients with stage II disease had similar outcomes regardless of chemotherapy timing. This research has the limitations inherent to the retrospective nature of the analysis and lack of prospective enrollment and controls. However, it does suggest that there may be a fraction of patients who should be treated with upfront resection. For incorporation of this change into standard practice, the question of therapy sequencing should be answered in a randomized prospective trial that incorporates the most updated systemic therapy (fluorouracil, leucovorin, oxaliplatin, and docetaxel [FLOT]) into its design.

Chemotherapy continues to play a critical role during first-line treatment of advanced esophageal and gastric adenocarcinoma. Triple chemotherapy regimens have been known to have increased efficacy in this setting, but their use has been limited by associated toxicities. A study by Nguyen and colleagues evaluated the TCX regimen (paclitaxel, carboplatin, and capecitabine) during first-line treatment of advanced gastric cancer. This regimen is similar to other triple chemotherapy regimens, such as FLOT and DCF (docetaxel, cisplatin, and fluorouracil), which have proven activity in this disease. This prospective phase 2 trial enrolled 83 patients. The median PFS (9.3 months) and OS (17 months) compared favorably with historical references. The regimen had expected adverse events, with cytopenias and fatigue being the most frequently reported. On the basis of the reported safety and efficacy, TCX has potential to be used as a chemotherapy backbone in future trials, but larger trials are needed to confirm the phase 2 trial results.

References

Wainberg ZA, Enzinger PC, Kang YK, et al. Bemarituzumab in patients with FGFR2b-selected gastric or gastro-oesophageal junction adenocarcinoma (FIGHT): A randomised, double-blind, placebo-controlled, phase 2 study. Lancet Oncol. 2022 Oct 13. Doi: 10.1016/S1470-2045(22)00603-9

The phase 2 FIGHT trial¹ evaluated the role of bemarituzumab, an anti-FGFR2 antibody, in combination with chemotherapy during first-line treatment of advanced gastroesophageal adenocarcinoma. The primary endpoint of this trial was progression-free survival (PFS). This trial enrolled 155 patients with upper gastrointestinal tumors with FGFR2b overexpression (defined as at least 2+ by immunohistochemistry) or amplification on next-generation sequencing. About 30% of patients with HER2 nonpositive tumors (ie, those that would not qualify for treatment with the targeted agent trastuzumab) were eligible for participation. In the FIGHT trial, patients were randomized in a 1:1 ratio to receive either standard chemotherapy (folinic acid, fluorouracil, and oxaliplatin [FOLFOX]) or chemotherapy plus bemarituzumab. Patients in the experimental group were allowed to receive one dose of standard FOLFOX chemotherapy while biomarker testing was ongoing.

With a median follow-up time of 10.9 moths, PFS was numerically prolonged in the bemarituzumab group (9.5 vs 7.4 months), but it did not reach statistical significance (P = .073). Overall survival (OS) was improved in the experimental group (not reached vs 12.9 months; P = .027). With a longer follow-up of 12.5 months, in post hoc exploratory analysis, OS was significantly longer in the experimental group (19.2 vs 13.5 months; hazard ratio 0.60, P = .027). The rate of serious adverse events was similar between the two groups. However, it is important to note ocular toxicities associated with bemarituzumab treatment. Corneal adverse events were seen in 67% of patients in the experimental group, with 24% of patients experiencing grade 3 events. Moreover, 26% of patients discontinued bemarituzumab because of corneal adverse events.

Overall, this phase 2 trial demonstrated that FGFR2b is emerging as an important biomarker and target in patients with advanced gastroesophageal adenocarcinoma. Ongoing phase 3 trials (FORTITUDE-101 with FOLFOX [NCT05052801] and FORTITUDE-102 with FOLFOX and nivolumab [NCT05111626]) hopefully will confirm the early results seen in the FIGHT trial. Awareness and early attention to treatment-associated toxicities will be critical for the potential future incorporation of bemarituzumab into clinical practice.

A study by Ramos‐Santillan and colleagues explored whether the order of treatment modalities matter in the management of early-stage gastric cancer. Typically, perioperative chemotherapy (both neoadjuvant and adjuvant) is used during treatment of early-stage gastric cancer, which is usually defined as at least cT2N0 or cTxN+ disease. In this study, multivariable Cox regression analyses were performed on propensity score-matched cohorts. The study analyzed outcomes of 11,984 patients who were identified using the US National Cancer Database and treated between 2005 and 2014. The results revealed that patients who had stage I disease had better outcomes with upfront resection followed by adjuvant therapy. Patients with stage III disease did better with a neoadjuvant approach, whereas patients with stage II disease had similar outcomes regardless of chemotherapy timing. This research has the limitations inherent to the retrospective nature of the analysis and lack of prospective enrollment and controls. However, it does suggest that there may be a fraction of patients who should be treated with upfront resection. For incorporation of this change into standard practice, the question of therapy sequencing should be answered in a randomized prospective trial that incorporates the most updated systemic therapy (fluorouracil, leucovorin, oxaliplatin, and docetaxel [FLOT]) into its design.

Chemotherapy continues to play a critical role during first-line treatment of advanced esophageal and gastric adenocarcinoma. Triple chemotherapy regimens have been known to have increased efficacy in this setting, but their use has been limited by associated toxicities. A study by Nguyen and colleagues evaluated the TCX regimen (paclitaxel, carboplatin, and capecitabine) during first-line treatment of advanced gastric cancer. This regimen is similar to other triple chemotherapy regimens, such as FLOT and DCF (docetaxel, cisplatin, and fluorouracil), which have proven activity in this disease. This prospective phase 2 trial enrolled 83 patients. The median PFS (9.3 months) and OS (17 months) compared favorably with historical references. The regimen had expected adverse events, with cytopenias and fatigue being the most frequently reported. On the basis of the reported safety and efficacy, TCX has potential to be used as a chemotherapy backbone in future trials, but larger trials are needed to confirm the phase 2 trial results.

References

Wainberg ZA, Enzinger PC, Kang YK, et al. Bemarituzumab in patients with FGFR2b-selected gastric or gastro-oesophageal junction adenocarcinoma (FIGHT): A randomised, double-blind, placebo-controlled, phase 2 study. Lancet Oncol. 2022 Oct 13. Doi: 10.1016/S1470-2045(22)00603-9

Once again, I have been given the distinct honor of analyzing two of the most provocative studies in colorectal cancer this month for Clinical Edge. The first study I will examine was done by Khamzina and colleagues and attempts to define the optimal time to perform surgery after neoadjuvant chemoradiotherapy in locally advanced rectal cancer. In this retrospective analysis, 770 patients who received long-course chemoradiotherapy for rectal cancer followed by total mesorectal excision (TME) were analyzed by how long the interval was between completion of radiation and surgery. Patients were separated into two groups: 6-8 weeks (n = 502) vs >8 weeks (n = 268). Though the pathologic complete response rates and 5-year disease-free survival rates were not significantly different between the two groups, tumor regression grade was significantly better in the >8 weeks arm (P = .004). This result confirms many previous studies that demonstrate continued tumor shrinkage months after completion of chemoradiotherapy and may provide an explanation of why the OPRA trial demonstrated a higher TME-free rate in the chemoradiotherapy-then-chemotherapy arm than it did in the induction chemotherapy-then-chemoradiotherapy arm (53% vs 41%).

Schaefer and colleagues looked at the potential prognostic markers for efficacy of transarterial radioembolization (TARE) with ⁹⁰Y resin microspheres in the treatment of liver-dominant metastatic colorectal cancer (mCRC). Their study evaluated 237 patients with liver-dominant mCRC from the prospective observational CIRSE Registry for SIR-Spheres Therapy (CIRT) study who were scheduled to receive TARE with ⁹⁰Y resin microspheres. For these patients, the aspartate transaminase-to-platelet ratio index (APRI), international normalized ratio (INR), and albumin-bilirubin (ALBI) grade were measured prior to treatment to potentially detect values that might be associated with differential outcomes from TARE. An APRI > 0.40 independently predicted worse overall survival (OS) (hazard ratio [HR] 2.25; P < .0001), progression-free survival (PFS) (HR 1.42; P = .0416), and hepatic PFS (HR 1.50; P = .0207). The other independent predictors for worse OS and hepatic PFS were an INR value of < 1 (HR 1.66; P = .0091) and ALBI grade 3 (HR 5.29; P = .0075), respectively. It is very difficult to make much out of this study save to say that poorer liver function at baseline (at least with respect to APRI and ALBI) predicts worse outcomes after TARE, which is none too controversial an opinion. That said, APRI and ALBI may be able to provide an extra measure of granularity to determine who might be more of a marginal candidate for TARE than would categorization according to Child-Pugh score alone. Saving these patients from a potentially morbid procedure would be a significant benefit.

Once again, I have been given the distinct honor of analyzing two of the most provocative studies in colorectal cancer this month for Clinical Edge. The first study I will examine was done by Khamzina and colleagues and attempts to define the optimal time to perform surgery after neoadjuvant chemoradiotherapy in locally advanced rectal cancer. In this retrospective analysis, 770 patients who received long-course chemoradiotherapy for rectal cancer followed by total mesorectal excision (TME) were analyzed by how long the interval was between completion of radiation and surgery. Patients were separated into two groups: 6-8 weeks (n = 502) vs >8 weeks (n = 268). Though the pathologic complete response rates and 5-year disease-free survival rates were not significantly different between the two groups, tumor regression grade was significantly better in the >8 weeks arm (P = .004). This result confirms many previous studies that demonstrate continued tumor shrinkage months after completion of chemoradiotherapy and may provide an explanation of why the OPRA trial demonstrated a higher TME-free rate in the chemoradiotherapy-then-chemotherapy arm than it did in the induction chemotherapy-then-chemoradiotherapy arm (53% vs 41%).

Schaefer and colleagues looked at the potential prognostic markers for efficacy of transarterial radioembolization (TARE) with ⁹⁰Y resin microspheres in the treatment of liver-dominant metastatic colorectal cancer (mCRC). Their study evaluated 237 patients with liver-dominant mCRC from the prospective observational CIRSE Registry for SIR-Spheres Therapy (CIRT) study who were scheduled to receive TARE with ⁹⁰Y resin microspheres. For these patients, the aspartate transaminase-to-platelet ratio index (APRI), international normalized ratio (INR), and albumin-bilirubin (ALBI) grade were measured prior to treatment to potentially detect values that might be associated with differential outcomes from TARE. An APRI > 0.40 independently predicted worse overall survival (OS) (hazard ratio [HR] 2.25; P < .0001), progression-free survival (PFS) (HR 1.42; P = .0416), and hepatic PFS (HR 1.50; P = .0207). The other independent predictors for worse OS and hepatic PFS were an INR value of < 1 (HR 1.66; P = .0091) and ALBI grade 3 (HR 5.29; P = .0075), respectively. It is very difficult to make much out of this study save to say that poorer liver function at baseline (at least with respect to APRI and ALBI) predicts worse outcomes after TARE, which is none too controversial an opinion. That said, APRI and ALBI may be able to provide an extra measure of granularity to determine who might be more of a marginal candidate for TARE than would categorization according to Child-Pugh score alone. Saving these patients from a potentially morbid procedure would be a significant benefit.

Once again, I have been given the distinct honor of analyzing two of the most provocative studies in colorectal cancer this month for Clinical Edge. The first study I will examine was done by Khamzina and colleagues and attempts to define the optimal time to perform surgery after neoadjuvant chemoradiotherapy in locally advanced rectal cancer. In this retrospective analysis, 770 patients who received long-course chemoradiotherapy for rectal cancer followed by total mesorectal excision (TME) were analyzed by how long the interval was between completion of radiation and surgery. Patients were separated into two groups: 6-8 weeks (n = 502) vs >8 weeks (n = 268). Though the pathologic complete response rates and 5-year disease-free survival rates were not significantly different between the two groups, tumor regression grade was significantly better in the >8 weeks arm (P = .004). This result confirms many previous studies that demonstrate continued tumor shrinkage months after completion of chemoradiotherapy and may provide an explanation of why the OPRA trial demonstrated a higher TME-free rate in the chemoradiotherapy-then-chemotherapy arm than it did in the induction chemotherapy-then-chemoradiotherapy arm (53% vs 41%).

Schaefer and colleagues looked at the potential prognostic markers for efficacy of transarterial radioembolization (TARE) with ⁹⁰Y resin microspheres in the treatment of liver-dominant metastatic colorectal cancer (mCRC). Their study evaluated 237 patients with liver-dominant mCRC from the prospective observational CIRSE Registry for SIR-Spheres Therapy (CIRT) study who were scheduled to receive TARE with ⁹⁰Y resin microspheres. For these patients, the aspartate transaminase-to-platelet ratio index (APRI), international normalized ratio (INR), and albumin-bilirubin (ALBI) grade were measured prior to treatment to potentially detect values that might be associated with differential outcomes from TARE. An APRI > 0.40 independently predicted worse overall survival (OS) (hazard ratio [HR] 2.25; P < .0001), progression-free survival (PFS) (HR 1.42; P = .0416), and hepatic PFS (HR 1.50; P = .0207). The other independent predictors for worse OS and hepatic PFS were an INR value of < 1 (HR 1.66; P = .0091) and ALBI grade 3 (HR 5.29; P = .0075), respectively. It is very difficult to make much out of this study save to say that poorer liver function at baseline (at least with respect to APRI and ALBI) predicts worse outcomes after TARE, which is none too controversial an opinion. That said, APRI and ALBI may be able to provide an extra measure of granularity to determine who might be more of a marginal candidate for TARE than would categorization according to Child-Pugh score alone. Saving these patients from a potentially morbid procedure would be a significant benefit.

Multiple studies have emphasized the potential for severe COVID-19 outcomes in patients with rheumatic disease, including patients with rheumatoid arthritis (RA). Because these studies often group together patients with different diseases, medications, and manifestations, differences in outcomes between patients with these conditions may be difficult to tease out.

Figueroa-Parra and colleagues performed a retrospective cohort study comparing people with RA who developed COVID-19 to those who did not have RA to examine the effect of RA characteristics, such as interstitial lung disease (ILD), serostatus, and bone erosions, on COVID-19 outcomes. Patients with RA, particularly those with seropositive RA, bone erosions, and RA-associated ILD, had approximately twofold (or higher) risk for severe COVID-19 outcomes, such as mortality or mechanical ventilation, than did those without RA. However, there was no difference in outcomes seen between patients with RA who were seropositive compared with those who were seronegative, with or without bone erosions, or with or without ILD. The mechanism by which RA phenotypes and their treatment affect this risk remains unclear.

Li and colleagues also looked at COVID-19 outcomes in patients with RA according to vaccination status using a UK primary care database. Among unvaccinated patients, the risk for SARS-CoV-2 infection and hospitalization or mortality because of COVID-19 were modestly higher in people with RA. Among vaccinated patients, there was no increased risk for breakthrough infection, COVID-19 hospitalization, or mortality observed in patients with RA over 3 or 6 months of follow-up, with a slight increase over 9 months of follow-up. Overall, both studies support prior research suggesting a higher risk for more severe COVID-19 in patients with RA, as well as potential mitigation with vaccination.

Predictors of RA course and severity are of great interest in determining the optimal therapy to reduce joint damage and prevent RA progression while also minimizing the adverse effects of treatment. Early disease course has been shown to be important in several studies. Giollo and colleagues compared patients with "difficult-to-treat RA," ie, RA that is resistant to multiple biologic disease-modifying antirheumatic drugs (bDMARD) or targeted synthetic DMARD (tsDMARD), with those without in an inception cohort study and found that early difficult management as well as delay of methotrexate initiation was associated with persistent inflammatory symptoms. This finding does not show a causative relationship between methotrexate and protection from the development of refractory RA but does lend support for early aggressive treatment in patients with a high inflammatory burden.

Conversely, Parisi and colleagues performed a subanalysis of the STARTER study of patients with RA in clinical remission to evaluate the impact of different therapies. The STARTER study had shown an association between ultrasound detection of tenosynovitis and RA flares. Of the more than 250 patients completing the study, ultrasound evidence of tenosynovitis was better controlled in patients on combination bDMARD and conventional synthetic DMARD (csDMARD) therapy than in those on csDMARDs monotherapy, with a trend toward reduction in flares in patients on combination therapy. Given the relatively small effect, it is not clear that combination therapy is associated with deeper remission, but, as suggested in prior studies, ultrasound evidence of tenosynovitis may be worthwhile considering prior to tapering therapy.

Multiple studies have emphasized the potential for severe COVID-19 outcomes in patients with rheumatic disease, including patients with rheumatoid arthritis (RA). Because these studies often group together patients with different diseases, medications, and manifestations, differences in outcomes between patients with these conditions may be difficult to tease out.

Figueroa-Parra and colleagues performed a retrospective cohort study comparing people with RA who developed COVID-19 to those who did not have RA to examine the effect of RA characteristics, such as interstitial lung disease (ILD), serostatus, and bone erosions, on COVID-19 outcomes. Patients with RA, particularly those with seropositive RA, bone erosions, and RA-associated ILD, had approximately twofold (or higher) risk for severe COVID-19 outcomes, such as mortality or mechanical ventilation, than did those without RA. However, there was no difference in outcomes seen between patients with RA who were seropositive compared with those who were seronegative, with or without bone erosions, or with or without ILD. The mechanism by which RA phenotypes and their treatment affect this risk remains unclear.

Li and colleagues also looked at COVID-19 outcomes in patients with RA according to vaccination status using a UK primary care database. Among unvaccinated patients, the risk for SARS-CoV-2 infection and hospitalization or mortality because of COVID-19 were modestly higher in people with RA. Among vaccinated patients, there was no increased risk for breakthrough infection, COVID-19 hospitalization, or mortality observed in patients with RA over 3 or 6 months of follow-up, with a slight increase over 9 months of follow-up. Overall, both studies support prior research suggesting a higher risk for more severe COVID-19 in patients with RA, as well as potential mitigation with vaccination.

Predictors of RA course and severity are of great interest in determining the optimal therapy to reduce joint damage and prevent RA progression while also minimizing the adverse effects of treatment. Early disease course has been shown to be important in several studies. Giollo and colleagues compared patients with "difficult-to-treat RA," ie, RA that is resistant to multiple biologic disease-modifying antirheumatic drugs (bDMARD) or targeted synthetic DMARD (tsDMARD), with those without in an inception cohort study and found that early difficult management as well as delay of methotrexate initiation was associated with persistent inflammatory symptoms. This finding does not show a causative relationship between methotrexate and protection from the development of refractory RA but does lend support for early aggressive treatment in patients with a high inflammatory burden.

Conversely, Parisi and colleagues performed a subanalysis of the STARTER study of patients with RA in clinical remission to evaluate the impact of different therapies. The STARTER study had shown an association between ultrasound detection of tenosynovitis and RA flares. Of the more than 250 patients completing the study, ultrasound evidence of tenosynovitis was better controlled in patients on combination bDMARD and conventional synthetic DMARD (csDMARD) therapy than in those on csDMARDs monotherapy, with a trend toward reduction in flares in patients on combination therapy. Given the relatively small effect, it is not clear that combination therapy is associated with deeper remission, but, as suggested in prior studies, ultrasound evidence of tenosynovitis may be worthwhile considering prior to tapering therapy.

Multiple studies have emphasized the potential for severe COVID-19 outcomes in patients with rheumatic disease, including patients with rheumatoid arthritis (RA). Because these studies often group together patients with different diseases, medications, and manifestations, differences in outcomes between patients with these conditions may be difficult to tease out.

Figueroa-Parra and colleagues performed a retrospective cohort study comparing people with RA who developed COVID-19 to those who did not have RA to examine the effect of RA characteristics, such as interstitial lung disease (ILD), serostatus, and bone erosions, on COVID-19 outcomes. Patients with RA, particularly those with seropositive RA, bone erosions, and RA-associated ILD, had approximately twofold (or higher) risk for severe COVID-19 outcomes, such as mortality or mechanical ventilation, than did those without RA. However, there was no difference in outcomes seen between patients with RA who were seropositive compared with those who were seronegative, with or without bone erosions, or with or without ILD. The mechanism by which RA phenotypes and their treatment affect this risk remains unclear.

Li and colleagues also looked at COVID-19 outcomes in patients with RA according to vaccination status using a UK primary care database. Among unvaccinated patients, the risk for SARS-CoV-2 infection and hospitalization or mortality because of COVID-19 were modestly higher in people with RA. Among vaccinated patients, there was no increased risk for breakthrough infection, COVID-19 hospitalization, or mortality observed in patients with RA over 3 or 6 months of follow-up, with a slight increase over 9 months of follow-up. Overall, both studies support prior research suggesting a higher risk for more severe COVID-19 in patients with RA, as well as potential mitigation with vaccination.

Predictors of RA course and severity are of great interest in determining the optimal therapy to reduce joint damage and prevent RA progression while also minimizing the adverse effects of treatment. Early disease course has been shown to be important in several studies. Giollo and colleagues compared patients with "difficult-to-treat RA," ie, RA that is resistant to multiple biologic disease-modifying antirheumatic drugs (bDMARD) or targeted synthetic DMARD (tsDMARD), with those without in an inception cohort study and found that early difficult management as well as delay of methotrexate initiation was associated with persistent inflammatory symptoms. This finding does not show a causative relationship between methotrexate and protection from the development of refractory RA but does lend support for early aggressive treatment in patients with a high inflammatory burden.

Conversely, Parisi and colleagues performed a subanalysis of the STARTER study of patients with RA in clinical remission to evaluate the impact of different therapies. The STARTER study had shown an association between ultrasound detection of tenosynovitis and RA flares. Of the more than 250 patients completing the study, ultrasound evidence of tenosynovitis was better controlled in patients on combination bDMARD and conventional synthetic DMARD (csDMARD) therapy than in those on csDMARDs monotherapy, with a trend toward reduction in flares in patients on combination therapy. Given the relatively small effect, it is not clear that combination therapy is associated with deeper remission, but, as suggested in prior studies, ultrasound evidence of tenosynovitis may be worthwhile considering prior to tapering therapy.

SAN DIEGO—Don’t stand when you talk at bedside. Ditch the white gowns, turn away from your computers and pagers, and stop yourself from interrupting all the time.

These tips—and more—can help clinicians provide better and more effective care, said a colorectal surgeon who spoke about communication skills at the annual meeting of the Association of VA Hematology/Oncology (AVAHO).

Research has suggested that nearly half of Americans don’t think their health care practitioners (HCPs) are compassionate, “and that’s really sad,” said Lorene Valdez-Boyle, MD, MS, surgery chief at the New Mexico VA Health Care Service.

To combat this perception, she said, HCPs can adopt multiple strategies as they work with veterans and their families. The goal, she said, is “to try to get them to trust you and want to be part of their treatment. This is how we're going to have better outcomes.”

Some strategies are simple. Dr. Valdez-Boyle, for example, doesn’t wear a white gown when she sees patients. “Obviously, they’re really gross,” she said. “But also, I want them to be comfortable with me. I sit down at their level, and we have a conversation. We talk about our dogs and we bond, because that’s going to help them trust me and want to work with me. I do that with families too. We joke, and we laugh.”

Sitting bedside instead of standing is important, she said, and a 2016 study backs up this idea. “It’s difficult when you’re running around or you want to get to the next one, and the patient just keeps talking,” she said. But research showed that “when the clinician sat, the patient felt like they listened more carefully, and they explained things in a better way that was much easier for them to understand. They definitely had an improved perception of their [clinician’s] communication skills.”

She highlighted another 2016 study that examined a Commit to Sit initiative in which nurses were urged to sit with patients during each shift. Nurse communication scores and overall patient experience scores went up.

The VA now has a Commit to Sit initiative, which urges clinicians to put away computers, smart phones, and pagers. “The patient feels that we’ve listened more intently to their concerns and care more about them as a patient,” Dr. Valdez-Boyle said. “We have an improved understanding of their health as a result of this. It allows the site employee to continue to be efficient while still delivering compassionate care and fosters trusted relationships in an empathetic and respectful manner.”

For more about the initiative, visit the VA PX SharePoint.

The VA, she said, also has a Take a Moment initiative that emphasizes eye contact, face-to-face interaction without electronics for at least the first 5 minutes of each visit, and seated conversations.

Dr. Valdez-Boyle also urged colleagues to pay attention to how often they interrupt. She pointed to a 2019 study that reported that patients had a median of 11 seconds—yes, seconds—to explain their problem in two-thirds of clinician encounters. “I think some of it is because we think we know what they're going to say.”

In the age of COVID-19, she suggested turning to fist or elbow bumps instead of handshakes. And she said, let patients wear street clothes when appropriate so they’re more comfortable. 

In the big picture, she said, good communication and a commitment to shared decision making “really create a shared responsibility. They give your patients ownership over their disease and the ability to make the decisions with their team.

Dr. Valdez-Boyle reported no disclosures.

SAN DIEGO—Don’t stand when you talk at bedside. Ditch the white gowns, turn away from your computers and pagers, and stop yourself from interrupting all the time.

These tips—and more—can help clinicians provide better and more effective care, said a colorectal surgeon who spoke about communication skills at the annual meeting of the Association of VA Hematology/Oncology (AVAHO).

Research has suggested that nearly half of Americans don’t think their health care practitioners (HCPs) are compassionate, “and that’s really sad,” said Lorene Valdez-Boyle, MD, MS, surgery chief at the New Mexico VA Health Care Service.

To combat this perception, she said, HCPs can adopt multiple strategies as they work with veterans and their families. The goal, she said, is “to try to get them to trust you and want to be part of their treatment. This is how we're going to have better outcomes.”

Some strategies are simple. Dr. Valdez-Boyle, for example, doesn’t wear a white gown when she sees patients. “Obviously, they’re really gross,” she said. “But also, I want them to be comfortable with me. I sit down at their level, and we have a conversation. We talk about our dogs and we bond, because that’s going to help them trust me and want to work with me. I do that with families too. We joke, and we laugh.”

Sitting bedside instead of standing is important, she said, and a 2016 study backs up this idea. “It’s difficult when you’re running around or you want to get to the next one, and the patient just keeps talking,” she said. But research showed that “when the clinician sat, the patient felt like they listened more carefully, and they explained things in a better way that was much easier for them to understand. They definitely had an improved perception of their [clinician’s] communication skills.”

She highlighted another 2016 study that examined a Commit to Sit initiative in which nurses were urged to sit with patients during each shift. Nurse communication scores and overall patient experience scores went up.

The VA now has a Commit to Sit initiative, which urges clinicians to put away computers, smart phones, and pagers. “The patient feels that we’ve listened more intently to their concerns and care more about them as a patient,” Dr. Valdez-Boyle said. “We have an improved understanding of their health as a result of this. It allows the site employee to continue to be efficient while still delivering compassionate care and fosters trusted relationships in an empathetic and respectful manner.”

For more about the initiative, visit the VA PX SharePoint.

The VA, she said, also has a Take a Moment initiative that emphasizes eye contact, face-to-face interaction without electronics for at least the first 5 minutes of each visit, and seated conversations.

Dr. Valdez-Boyle also urged colleagues to pay attention to how often they interrupt. She pointed to a 2019 study that reported that patients had a median of 11 seconds—yes, seconds—to explain their problem in two-thirds of clinician encounters. “I think some of it is because we think we know what they're going to say.”

In the age of COVID-19, she suggested turning to fist or elbow bumps instead of handshakes. And she said, let patients wear street clothes when appropriate so they’re more comfortable. 

In the big picture, she said, good communication and a commitment to shared decision making “really create a shared responsibility. They give your patients ownership over their disease and the ability to make the decisions with their team.

Dr. Valdez-Boyle reported no disclosures.

SAN DIEGO—Don’t stand when you talk at bedside. Ditch the white gowns, turn away from your computers and pagers, and stop yourself from interrupting all the time.

These tips—and more—can help clinicians provide better and more effective care, said a colorectal surgeon who spoke about communication skills at the annual meeting of the Association of VA Hematology/Oncology (AVAHO).

Research has suggested that nearly half of Americans don’t think their health care practitioners (HCPs) are compassionate, “and that’s really sad,” said Lorene Valdez-Boyle, MD, MS, surgery chief at the New Mexico VA Health Care Service.

To combat this perception, she said, HCPs can adopt multiple strategies as they work with veterans and their families. The goal, she said, is “to try to get them to trust you and want to be part of their treatment. This is how we're going to have better outcomes.”

Some strategies are simple. Dr. Valdez-Boyle, for example, doesn’t wear a white gown when she sees patients. “Obviously, they’re really gross,” she said. “But also, I want them to be comfortable with me. I sit down at their level, and we have a conversation. We talk about our dogs and we bond, because that’s going to help them trust me and want to work with me. I do that with families too. We joke, and we laugh.”

Sitting bedside instead of standing is important, she said, and a 2016 study backs up this idea. “It’s difficult when you’re running around or you want to get to the next one, and the patient just keeps talking,” she said. But research showed that “when the clinician sat, the patient felt like they listened more carefully, and they explained things in a better way that was much easier for them to understand. They definitely had an improved perception of their [clinician’s] communication skills.”

She highlighted another 2016 study that examined a Commit to Sit initiative in which nurses were urged to sit with patients during each shift. Nurse communication scores and overall patient experience scores went up.

The VA now has a Commit to Sit initiative, which urges clinicians to put away computers, smart phones, and pagers. “The patient feels that we’ve listened more intently to their concerns and care more about them as a patient,” Dr. Valdez-Boyle said. “We have an improved understanding of their health as a result of this. It allows the site employee to continue to be efficient while still delivering compassionate care and fosters trusted relationships in an empathetic and respectful manner.”

For more about the initiative, visit the VA PX SharePoint.

The VA, she said, also has a Take a Moment initiative that emphasizes eye contact, face-to-face interaction without electronics for at least the first 5 minutes of each visit, and seated conversations.

Dr. Valdez-Boyle also urged colleagues to pay attention to how often they interrupt. She pointed to a 2019 study that reported that patients had a median of 11 seconds—yes, seconds—to explain their problem in two-thirds of clinician encounters. “I think some of it is because we think we know what they're going to say.”

In the age of COVID-19, she suggested turning to fist or elbow bumps instead of handshakes. And she said, let patients wear street clothes when appropriate so they’re more comfortable. 

In the big picture, she said, good communication and a commitment to shared decision making “really create a shared responsibility. They give your patients ownership over their disease and the ability to make the decisions with their team.

Dr. Valdez-Boyle reported no disclosures.

Case Report

A 47-year-old man presented with a sudden-onset rash consisting of red bumps on the abdomen and legs that had been ongoing for several days. He had known psoriasis and psoriatic arthritis that had been well controlled with adalimumab for the last 18 months. He reported concurrent onset of nausea but denied fevers, chills, night sweats, unintentional weight loss, abdominal pain, and pruritus. He endorsed prior cutaneous infections of methicillin-resistant Staphylococcus aureus (MRSA). His medical history also included diabetes mellitus, hypertension, and obesity. His other medications included oral losartan-hydrochlorothiazide, amlodipine, naproxen, and atorvastatin.

Physical examination revealed numerous thin purpuric papules—some with adherent scale—distributed on the lower legs, extensor forearms, and abdomen. Abdominal lesions were confined to weight-related striae (Figure 1). The palms, soles, oral mucosa, and face were spared. Three punch biopsies were performed, including 1 for direct immunofluorescence (DIF), and the patient was instructed to apply clobetasol to the affected areas twice daily until further notice.

Pathology showed perivascular extravasation of erythrocytes, neutrophils, eosinophils, and leukocytoclasis surrounding blood vessels associated with fibrin (Figure 2). Direct immunofluorescence showed granular deposition of IgA, complement component 3, and fibrinogen in a superficial dermal vascular pattern (Figure 3). These results were consistent with IgA small-vessel vasculitis. One specimen was consistent with the patient’s known psoriasis.  

Urinalysis revealed moderate hemoglobinuria, and urine microscopy showed 174 red blood cells per high-power field. Creatinine was high at 1.87 mg/dL (reference range, <1.34 mg/dL; patient’s baseline, 0.81 mg/dL) and glomerular filtration rate was low (42 mL/min, patient’s baseline, >60 mL/min [reference range, 90–120 mL/min]). Erythrocyte sedimentation rate (21 mm/h [reference range, 0–22 mm/h]) and C-reactive protein were elevated (2.2 mg/dL [reference range, 0.3–1.0 mg/dL]). Given his history of cutaneous MRSA infections, a bacterial culture swab was collected from the skin surface to check for colonization, which showed moderate growth of MRSA. Naproxen was discontinued over concern of worsening the patient’s renal status. The patient was instructed to rest at home with his legs elevated, wear compression socks when ambulatory, use chlorhexidine antiseptic daily as a body wash when showering, and apply mupirocin three times daily to the biopsy sites. He was referred to urology for his microhematuria, where cystoscopy revealed no abnormalities.A month passed with no improvement of the patient’s cutaneous vasculitis, and his psoriatic arthritis worsened without his usual use of naproxen. He developed abdominal pain and loss of appetite. A prednisone taper was ordered starting at 40 mg/d (28.8 mg/kg), which provided relief of the skin and joint symptoms only until the course was completed 12 days later. 

Five weeks after the initial presentation, the patient returned with a more severe eruption consisting of innumerable purpuric papules that coalesced in plaques on the abdomen, arms, and legs. He also had erythematous facial pustules and mild palmar petechiae (Figure 4). Three biopsies were performed, including 1 for DIF and 1 from a pustule on the forehead. Histology and DIF were again consistent with IgA small-vessel vasculitis. The forehead biopsy was compatible with steroid acne (attributed to recent prednisone use) and psoriasis.   

Rheumatology was consulted, and adalimumab was discontinued 6 weeks after the initial presentation out of concern for drug-induced cutaneous vasculitis. Vasculitis work-up was unremarkable, including antineutrophil cytoplasmic antibodies, rheumatoid factor, cyclic citrullinated peptide, and serum protein electrophoresis. Oral dapsone was started at 100 mg/d, with the tentative plan of starting secukinumab if cutaneous symptoms improved. For 3 weeks, the patient’s cutaneous symptoms steadily improved.

Nine weeks after initial presentation to dermatology (3 weeks after discontinuing adalimumab) the patient self-administered his first dose of secukinumab at home. Several hours later, he reported sudden reappearance of vasculitis. He denied diarrhea, abdominal pain, bowel movement urgency, fevers, fatigue, and unintentional weight loss. Antistreptolysin O and hepatitis A antibodies were negative. He was instructed to hold secukinumab indefinitely.

Four weeks after his only secukinumab injection, the patient reported another episode of acute worsening cutaneous symptoms. A 4-week prednisone taper starting at 40 mg/d was ordered. Computed tomography of the chest, abdomen, and pelvis to rule out internal malignancy was unremarkable. Around this time, the patient reported major emotional distress related to an unexpected death in his family, which added to a gradual increase in his stress level related to the COVID-19 pandemic. 

Three weeks later, dapsone was increased to 100 mg twice daily on account of the patient’s adiposity and lack of cutaneous improvement on the lower dose. Subsequently, the vasculitis rapidly improved for 2 weeks. The patient then reported symptoms of headache, dizziness, and chills. He was tested for COVID-19 and was negative. Six weeks after increasing the dapsone dose (5 months after initial presentation), the skin was normalizing, showing only faintly hyperpigmented macules confined to areas of resolved vasculitis (forearms, abdomen, legs). 

The patient had been on dapsone 100 mg twice daily for 3 months when he was started on ustekinumab (90 mg at weeks 0 and 4, with planned doses every 12 weeks) for psoriatic arthritis in hopes of withdrawing dapsone. His cutaneous symptoms have remained well controlled on this regimen for 18 months. Lowering of dapsone below 100 mg daily has resulted in recurrent mild vasculitis symptoms; he now maintains the once-daily dosing without negative side effects.

Comment

IgA vasculitis is a form of cutaneous small-vessel leukocytoclastic vasculitis (LCV) characterized by episodes of palpable purpura on the extensor surfaces of the arms and legs that may be associated with arthritis, abdominal pain, and/or hematuria. Although vasculitis is a known potential adverse effect of anti–tumor necrosis factor (TNF) α therapy, cases of adalimumab-induced IgA vasculitis are uncommon. As use of more targeted therapies for psoriasis and psoriatic arthritis, such as the IL-17 inhibitor secukinumab, increases so do reports of associated adverse events. Of 6 previously reported cases of secukinumab-associated vasculitis, at least 4 were IgA vasculitis (Table).^1-6 Another case described one patient with rheumatoid arthritis undergoing secukinumab treatment who experienced necrotizing glomerulonephritis; however, the authors concluded secukinumab likely was not causative in that case, as serologies and urinalyses suggested gradual onset of the process prior to initiating the medication.⁷

The exact pathogenesis of IgA vasculitis is unclear, but a prevailing theory involves the dysregulation of IgA synthesis and metabolism. Other than increased serum levels of transforming growth factor β, which is a major stimulating factor for IgA production, it also has been hypothesized that the presence of aberrantly hypoglycosylated IgA exposes an autoepitope for recognition by other pathogenic IgG and IgA, leading to the formation of large immune complexes that can readily deposit in postcapillary venules. The deposition of IgA immune complexes in postcapillary venules and the subsequent activation of the complement system causes direct damage to the endothelial cells of vessel walls. This complement activation is evidenced by vascular complement component 3 deposition on DIF (a nonspecific feature of LCV). Chemotaxis of neutrophils ensues, followed by their firm adherence and transendothelial migration (mediated by monocyte chemoattractant protein 1 [MCP-1]). Neutrophil degranulation releases reactive oxygen species and cytokines, which in turn recruit additional leukocytes to the area of inflammation, subsequently undergoing degeneration (leukocytoclasis). Microvascular permeability also is enhanced by MCP-1, allowing exudation of serum, erythrocytes, and fibrin. In the setting of elevated circulating TNF and IL-1, endothelium is stimulated to activate the intrinsic and extrinsic coagulation pathways. This decreases endothelial fibrinolytic activity, leading to thrombosis. The high venous pressure and low fibrinolytic activity in the lower legs explains why vasculitic lesions often are confined to or begin in this distribution.^1,8-10

There also are noteworthy roles for cytokines in LCV. Circulating transforming growth factor β and IL-6—which are necessary for development of T helper 17 (T_H17) cells and production of IL-17—are higher in patients with LCV compared to controls. Peripheral blood monocytes in patients with LCV demonstrate higher production of IL-17. Once T_H17 cells develop, their survival and phenotype are maintained by IL-23 (considered the master regulator of T_H17 differentiation). IL-17 is a potent chemoattractant of IL-8 (CXCL8) and MCP-1, both of which promote neutrophil-mediated perivascular inflammation. The IL-23 and IL-17 pathways implicated in the pathogenesis of psoriasis also cause neutrophil activation and upregulate transcription of proinflammatory cytokines (IL-1, IL-6, IL-8, and TNF-α), which overlap with those implicated in LCV. Autoimmune disease generally entails some positive feedback loop of progressively severe self-recognition and tissue destruction by the immune system. These shared cytokinetic processes may explain how the internal environment of psoriasis could perpetuate IgA vasculitis.^1,2,8,10-12

The mechanisms underlying vasculitis associated with adalimumab are unclear, but hypotheses involve direct toxicity on vessels, capillary deposition of anti-TNF/TNF immune complexes, or an inflammatory process resulting in autoantibodies. Similar hypotheses are posited for secukinumab-associated vasculitis, including deposition of secukinumab–IL-17 complexes. Anti–TNF-α medications may increase T_H17 cell numbers, leading to increased production of IL-22 and a resultant immunologic microenvironment conducive to vasculitis. All 6 published cases of secukinumab-associated vasculitis that we found had received prior treatment with a TNF-α blocker, but only 1 had occurrence of vasculitis during that treatment.^1-6,10

In the 6 cases we reviewed, the time from starting secukinumab to onset of vasculitis ranged from 1 to 18 months. Our patient’s same-day re-emergence of vasculitis after his first secukinumab dose was so acute that we were skeptical of secukinumab as a potential trigger; this may simply have been coincident to the natural waxing and waning of the vasculitis (although onset of IgA vasculitis within 1 day of starting anti–TNF-α therapy has been reported).^1-6,13  

Specific associations of IgA vasculitis are many and can include bacterial organisms such as Helicobacter pylori, streptococci, and staphylococci. Although internal mucous membrane infections are considered more linked because of the surveillance role of IgA predominantly in mucosal tissues, it is possible that our patient with cutaneous MRSA harbored the same within the nasal mucosa. Our patient also received multiple vaccinations outside our department throughout his clinical course (2 hepatitis B and 1 pneumococcal conjugate), which are known potential triggers for vasculitis. Psychological stress is a known trigger for psoriasis, and given the cytokinetic relationship of psoriasis to vasculitis described previously, it may have indirectly contributed to vasculitis in our case. The anxiety associated with being immunosuppressed during the COVID-19 pandemic and bereavement of losing a family member may have contributed to the refractory nature of our patient’s condition. Renal involvement is relatively common in adults with IgA vasculitis and so should be ruled out, as should occult internal malignancy.^8,10,14

It is unclear which of the above factors was causative in our case, but a multifactorial process is likely. Treatment of monoclonal antibody–associated vasculitis entails investigating for triggers and systemic involvement, removing the most likely culprit, quelling the vasculitis acutely, avoiding known potential exacerbators, and introducing an alternative long-term immunomodulant. In all 6 reported similar cases, discontinuation of secukinumab and initiation of prednisone or colchicine led to resolution.^1-6 Dapsone also is acceptable for acute control of IgA vasculitis, although this medication is highly lipid soluble and penetrates well into various tissues.¹⁵ Thus, lower doses may prove ineffective for obese patients, as was demonstrated in our case. Given the known potential of vaccinations, infections, and other factors (eg, alcohol, penicillin) to trigger IgA vasculitis, these should be avoided.¹⁰

Blockade of IL-23 with ustekinumab has been suggested by other authors encountering secukinumab-associated vasculitis, as IL-23 is the main driver and sustainer of T_H17 cell differentiation.⁸ Although 6 previously reported cases of secukinumab-associated vasculitis achieved resolution without long-term recurrence, none did so using an IL-23 inhibitor (nor had any of the described patients received IL-23 inhibitors previously).^1-6 Given the established safety of IL-23 inhibitors and that they theoretically are well suited for this unique circumstance (by ceasing the main causative cytokine cascades “upstream”) and were efficacious in quickly resolving our patient’s vasculitis, we suggest that ustekinumab may represent an ideal treatment option for patients in whom adalimumab- or secukinumab-associated vasculitis is suspected. Further research is needed given the complex interplay of so many variables and the increasingly common reports of adverse cutaneous events associated with these drugs.^1-6,10 

Case Report

A 47-year-old man presented with a sudden-onset rash consisting of red bumps on the abdomen and legs that had been ongoing for several days. He had known psoriasis and psoriatic arthritis that had been well controlled with adalimumab for the last 18 months. He reported concurrent onset of nausea but denied fevers, chills, night sweats, unintentional weight loss, abdominal pain, and pruritus. He endorsed prior cutaneous infections of methicillin-resistant Staphylococcus aureus (MRSA). His medical history also included diabetes mellitus, hypertension, and obesity. His other medications included oral losartan-hydrochlorothiazide, amlodipine, naproxen, and atorvastatin.

Physical examination revealed numerous thin purpuric papules—some with adherent scale—distributed on the lower legs, extensor forearms, and abdomen. Abdominal lesions were confined to weight-related striae (Figure 1). The palms, soles, oral mucosa, and face were spared. Three punch biopsies were performed, including 1 for direct immunofluorescence (DIF), and the patient was instructed to apply clobetasol to the affected areas twice daily until further notice.

Pathology showed perivascular extravasation of erythrocytes, neutrophils, eosinophils, and leukocytoclasis surrounding blood vessels associated with fibrin (Figure 2). Direct immunofluorescence showed granular deposition of IgA, complement component 3, and fibrinogen in a superficial dermal vascular pattern (Figure 3). These results were consistent with IgA small-vessel vasculitis. One specimen was consistent with the patient’s known psoriasis.  

Urinalysis revealed moderate hemoglobinuria, and urine microscopy showed 174 red blood cells per high-power field. Creatinine was high at 1.87 mg/dL (reference range, <1.34 mg/dL; patient’s baseline, 0.81 mg/dL) and glomerular filtration rate was low (42 mL/min, patient’s baseline, >60 mL/min [reference range, 90–120 mL/min]). Erythrocyte sedimentation rate (21 mm/h [reference range, 0–22 mm/h]) and C-reactive protein were elevated (2.2 mg/dL [reference range, 0.3–1.0 mg/dL]). Given his history of cutaneous MRSA infections, a bacterial culture swab was collected from the skin surface to check for colonization, which showed moderate growth of MRSA. Naproxen was discontinued over concern of worsening the patient’s renal status. The patient was instructed to rest at home with his legs elevated, wear compression socks when ambulatory, use chlorhexidine antiseptic daily as a body wash when showering, and apply mupirocin three times daily to the biopsy sites. He was referred to urology for his microhematuria, where cystoscopy revealed no abnormalities.A month passed with no improvement of the patient’s cutaneous vasculitis, and his psoriatic arthritis worsened without his usual use of naproxen. He developed abdominal pain and loss of appetite. A prednisone taper was ordered starting at 40 mg/d (28.8 mg/kg), which provided relief of the skin and joint symptoms only until the course was completed 12 days later. 

Five weeks after the initial presentation, the patient returned with a more severe eruption consisting of innumerable purpuric papules that coalesced in plaques on the abdomen, arms, and legs. He also had erythematous facial pustules and mild palmar petechiae (Figure 4). Three biopsies were performed, including 1 for DIF and 1 from a pustule on the forehead. Histology and DIF were again consistent with IgA small-vessel vasculitis. The forehead biopsy was compatible with steroid acne (attributed to recent prednisone use) and psoriasis.   

Rheumatology was consulted, and adalimumab was discontinued 6 weeks after the initial presentation out of concern for drug-induced cutaneous vasculitis. Vasculitis work-up was unremarkable, including antineutrophil cytoplasmic antibodies, rheumatoid factor, cyclic citrullinated peptide, and serum protein electrophoresis. Oral dapsone was started at 100 mg/d, with the tentative plan of starting secukinumab if cutaneous symptoms improved. For 3 weeks, the patient’s cutaneous symptoms steadily improved.

Nine weeks after initial presentation to dermatology (3 weeks after discontinuing adalimumab) the patient self-administered his first dose of secukinumab at home. Several hours later, he reported sudden reappearance of vasculitis. He denied diarrhea, abdominal pain, bowel movement urgency, fevers, fatigue, and unintentional weight loss. Antistreptolysin O and hepatitis A antibodies were negative. He was instructed to hold secukinumab indefinitely.

Four weeks after his only secukinumab injection, the patient reported another episode of acute worsening cutaneous symptoms. A 4-week prednisone taper starting at 40 mg/d was ordered. Computed tomography of the chest, abdomen, and pelvis to rule out internal malignancy was unremarkable. Around this time, the patient reported major emotional distress related to an unexpected death in his family, which added to a gradual increase in his stress level related to the COVID-19 pandemic. 

Three weeks later, dapsone was increased to 100 mg twice daily on account of the patient’s adiposity and lack of cutaneous improvement on the lower dose. Subsequently, the vasculitis rapidly improved for 2 weeks. The patient then reported symptoms of headache, dizziness, and chills. He was tested for COVID-19 and was negative. Six weeks after increasing the dapsone dose (5 months after initial presentation), the skin was normalizing, showing only faintly hyperpigmented macules confined to areas of resolved vasculitis (forearms, abdomen, legs). 

The patient had been on dapsone 100 mg twice daily for 3 months when he was started on ustekinumab (90 mg at weeks 0 and 4, with planned doses every 12 weeks) for psoriatic arthritis in hopes of withdrawing dapsone. His cutaneous symptoms have remained well controlled on this regimen for 18 months. Lowering of dapsone below 100 mg daily has resulted in recurrent mild vasculitis symptoms; he now maintains the once-daily dosing without negative side effects.

Comment

IgA vasculitis is a form of cutaneous small-vessel leukocytoclastic vasculitis (LCV) characterized by episodes of palpable purpura on the extensor surfaces of the arms and legs that may be associated with arthritis, abdominal pain, and/or hematuria. Although vasculitis is a known potential adverse effect of anti–tumor necrosis factor (TNF) α therapy, cases of adalimumab-induced IgA vasculitis are uncommon. As use of more targeted therapies for psoriasis and psoriatic arthritis, such as the IL-17 inhibitor secukinumab, increases so do reports of associated adverse events. Of 6 previously reported cases of secukinumab-associated vasculitis, at least 4 were IgA vasculitis (Table).^1-6 Another case described one patient with rheumatoid arthritis undergoing secukinumab treatment who experienced necrotizing glomerulonephritis; however, the authors concluded secukinumab likely was not causative in that case, as serologies and urinalyses suggested gradual onset of the process prior to initiating the medication.⁷

The exact pathogenesis of IgA vasculitis is unclear, but a prevailing theory involves the dysregulation of IgA synthesis and metabolism. Other than increased serum levels of transforming growth factor β, which is a major stimulating factor for IgA production, it also has been hypothesized that the presence of aberrantly hypoglycosylated IgA exposes an autoepitope for recognition by other pathogenic IgG and IgA, leading to the formation of large immune complexes that can readily deposit in postcapillary venules. The deposition of IgA immune complexes in postcapillary venules and the subsequent activation of the complement system causes direct damage to the endothelial cells of vessel walls. This complement activation is evidenced by vascular complement component 3 deposition on DIF (a nonspecific feature of LCV). Chemotaxis of neutrophils ensues, followed by their firm adherence and transendothelial migration (mediated by monocyte chemoattractant protein 1 [MCP-1]). Neutrophil degranulation releases reactive oxygen species and cytokines, which in turn recruit additional leukocytes to the area of inflammation, subsequently undergoing degeneration (leukocytoclasis). Microvascular permeability also is enhanced by MCP-1, allowing exudation of serum, erythrocytes, and fibrin. In the setting of elevated circulating TNF and IL-1, endothelium is stimulated to activate the intrinsic and extrinsic coagulation pathways. This decreases endothelial fibrinolytic activity, leading to thrombosis. The high venous pressure and low fibrinolytic activity in the lower legs explains why vasculitic lesions often are confined to or begin in this distribution.^1,8-10

There also are noteworthy roles for cytokines in LCV. Circulating transforming growth factor β and IL-6—which are necessary for development of T helper 17 (T_H17) cells and production of IL-17—are higher in patients with LCV compared to controls. Peripheral blood monocytes in patients with LCV demonstrate higher production of IL-17. Once T_H17 cells develop, their survival and phenotype are maintained by IL-23 (considered the master regulator of T_H17 differentiation). IL-17 is a potent chemoattractant of IL-8 (CXCL8) and MCP-1, both of which promote neutrophil-mediated perivascular inflammation. The IL-23 and IL-17 pathways implicated in the pathogenesis of psoriasis also cause neutrophil activation and upregulate transcription of proinflammatory cytokines (IL-1, IL-6, IL-8, and TNF-α), which overlap with those implicated in LCV. Autoimmune disease generally entails some positive feedback loop of progressively severe self-recognition and tissue destruction by the immune system. These shared cytokinetic processes may explain how the internal environment of psoriasis could perpetuate IgA vasculitis.^1,2,8,10-12

The mechanisms underlying vasculitis associated with adalimumab are unclear, but hypotheses involve direct toxicity on vessels, capillary deposition of anti-TNF/TNF immune complexes, or an inflammatory process resulting in autoantibodies. Similar hypotheses are posited for secukinumab-associated vasculitis, including deposition of secukinumab–IL-17 complexes. Anti–TNF-α medications may increase T_H17 cell numbers, leading to increased production of IL-22 and a resultant immunologic microenvironment conducive to vasculitis. All 6 published cases of secukinumab-associated vasculitis that we found had received prior treatment with a TNF-α blocker, but only 1 had occurrence of vasculitis during that treatment.^1-6,10

In the 6 cases we reviewed, the time from starting secukinumab to onset of vasculitis ranged from 1 to 18 months. Our patient’s same-day re-emergence of vasculitis after his first secukinumab dose was so acute that we were skeptical of secukinumab as a potential trigger; this may simply have been coincident to the natural waxing and waning of the vasculitis (although onset of IgA vasculitis within 1 day of starting anti–TNF-α therapy has been reported).^1-6,13  

Specific associations of IgA vasculitis are many and can include bacterial organisms such as Helicobacter pylori, streptococci, and staphylococci. Although internal mucous membrane infections are considered more linked because of the surveillance role of IgA predominantly in mucosal tissues, it is possible that our patient with cutaneous MRSA harbored the same within the nasal mucosa. Our patient also received multiple vaccinations outside our department throughout his clinical course (2 hepatitis B and 1 pneumococcal conjugate), which are known potential triggers for vasculitis. Psychological stress is a known trigger for psoriasis, and given the cytokinetic relationship of psoriasis to vasculitis described previously, it may have indirectly contributed to vasculitis in our case. The anxiety associated with being immunosuppressed during the COVID-19 pandemic and bereavement of losing a family member may have contributed to the refractory nature of our patient’s condition. Renal involvement is relatively common in adults with IgA vasculitis and so should be ruled out, as should occult internal malignancy.^8,10,14

It is unclear which of the above factors was causative in our case, but a multifactorial process is likely. Treatment of monoclonal antibody–associated vasculitis entails investigating for triggers and systemic involvement, removing the most likely culprit, quelling the vasculitis acutely, avoiding known potential exacerbators, and introducing an alternative long-term immunomodulant. In all 6 reported similar cases, discontinuation of secukinumab and initiation of prednisone or colchicine led to resolution.^1-6 Dapsone also is acceptable for acute control of IgA vasculitis, although this medication is highly lipid soluble and penetrates well into various tissues.¹⁵ Thus, lower doses may prove ineffective for obese patients, as was demonstrated in our case. Given the known potential of vaccinations, infections, and other factors (eg, alcohol, penicillin) to trigger IgA vasculitis, these should be avoided.¹⁰

Blockade of IL-23 with ustekinumab has been suggested by other authors encountering secukinumab-associated vasculitis, as IL-23 is the main driver and sustainer of T_H17 cell differentiation.⁸ Although 6 previously reported cases of secukinumab-associated vasculitis achieved resolution without long-term recurrence, none did so using an IL-23 inhibitor (nor had any of the described patients received IL-23 inhibitors previously).^1-6 Given the established safety of IL-23 inhibitors and that they theoretically are well suited for this unique circumstance (by ceasing the main causative cytokine cascades “upstream”) and were efficacious in quickly resolving our patient’s vasculitis, we suggest that ustekinumab may represent an ideal treatment option for patients in whom adalimumab- or secukinumab-associated vasculitis is suspected. Further research is needed given the complex interplay of so many variables and the increasingly common reports of adverse cutaneous events associated with these drugs.^1-6,10 

Case Report

A 47-year-old man presented with a sudden-onset rash consisting of red bumps on the abdomen and legs that had been ongoing for several days. He had known psoriasis and psoriatic arthritis that had been well controlled with adalimumab for the last 18 months. He reported concurrent onset of nausea but denied fevers, chills, night sweats, unintentional weight loss, abdominal pain, and pruritus. He endorsed prior cutaneous infections of methicillin-resistant Staphylococcus aureus (MRSA). His medical history also included diabetes mellitus, hypertension, and obesity. His other medications included oral losartan-hydrochlorothiazide, amlodipine, naproxen, and atorvastatin.

Physical examination revealed numerous thin purpuric papules—some with adherent scale—distributed on the lower legs, extensor forearms, and abdomen. Abdominal lesions were confined to weight-related striae (Figure 1). The palms, soles, oral mucosa, and face were spared. Three punch biopsies were performed, including 1 for direct immunofluorescence (DIF), and the patient was instructed to apply clobetasol to the affected areas twice daily until further notice.

Pathology showed perivascular extravasation of erythrocytes, neutrophils, eosinophils, and leukocytoclasis surrounding blood vessels associated with fibrin (Figure 2). Direct immunofluorescence showed granular deposition of IgA, complement component 3, and fibrinogen in a superficial dermal vascular pattern (Figure 3). These results were consistent with IgA small-vessel vasculitis. One specimen was consistent with the patient’s known psoriasis.  

Urinalysis revealed moderate hemoglobinuria, and urine microscopy showed 174 red blood cells per high-power field. Creatinine was high at 1.87 mg/dL (reference range, <1.34 mg/dL; patient’s baseline, 0.81 mg/dL) and glomerular filtration rate was low (42 mL/min, patient’s baseline, >60 mL/min [reference range, 90–120 mL/min]). Erythrocyte sedimentation rate (21 mm/h [reference range, 0–22 mm/h]) and C-reactive protein were elevated (2.2 mg/dL [reference range, 0.3–1.0 mg/dL]). Given his history of cutaneous MRSA infections, a bacterial culture swab was collected from the skin surface to check for colonization, which showed moderate growth of MRSA. Naproxen was discontinued over concern of worsening the patient’s renal status. The patient was instructed to rest at home with his legs elevated, wear compression socks when ambulatory, use chlorhexidine antiseptic daily as a body wash when showering, and apply mupirocin three times daily to the biopsy sites. He was referred to urology for his microhematuria, where cystoscopy revealed no abnormalities.A month passed with no improvement of the patient’s cutaneous vasculitis, and his psoriatic arthritis worsened without his usual use of naproxen. He developed abdominal pain and loss of appetite. A prednisone taper was ordered starting at 40 mg/d (28.8 mg/kg), which provided relief of the skin and joint symptoms only until the course was completed 12 days later. 

Five weeks after the initial presentation, the patient returned with a more severe eruption consisting of innumerable purpuric papules that coalesced in plaques on the abdomen, arms, and legs. He also had erythematous facial pustules and mild palmar petechiae (Figure 4). Three biopsies were performed, including 1 for DIF and 1 from a pustule on the forehead. Histology and DIF were again consistent with IgA small-vessel vasculitis. The forehead biopsy was compatible with steroid acne (attributed to recent prednisone use) and psoriasis.   

Rheumatology was consulted, and adalimumab was discontinued 6 weeks after the initial presentation out of concern for drug-induced cutaneous vasculitis. Vasculitis work-up was unremarkable, including antineutrophil cytoplasmic antibodies, rheumatoid factor, cyclic citrullinated peptide, and serum protein electrophoresis. Oral dapsone was started at 100 mg/d, with the tentative plan of starting secukinumab if cutaneous symptoms improved. For 3 weeks, the patient’s cutaneous symptoms steadily improved.

Nine weeks after initial presentation to dermatology (3 weeks after discontinuing adalimumab) the patient self-administered his first dose of secukinumab at home. Several hours later, he reported sudden reappearance of vasculitis. He denied diarrhea, abdominal pain, bowel movement urgency, fevers, fatigue, and unintentional weight loss. Antistreptolysin O and hepatitis A antibodies were negative. He was instructed to hold secukinumab indefinitely.

Four weeks after his only secukinumab injection, the patient reported another episode of acute worsening cutaneous symptoms. A 4-week prednisone taper starting at 40 mg/d was ordered. Computed tomography of the chest, abdomen, and pelvis to rule out internal malignancy was unremarkable. Around this time, the patient reported major emotional distress related to an unexpected death in his family, which added to a gradual increase in his stress level related to the COVID-19 pandemic. 

Three weeks later, dapsone was increased to 100 mg twice daily on account of the patient’s adiposity and lack of cutaneous improvement on the lower dose. Subsequently, the vasculitis rapidly improved for 2 weeks. The patient then reported symptoms of headache, dizziness, and chills. He was tested for COVID-19 and was negative. Six weeks after increasing the dapsone dose (5 months after initial presentation), the skin was normalizing, showing only faintly hyperpigmented macules confined to areas of resolved vasculitis (forearms, abdomen, legs). 

The patient had been on dapsone 100 mg twice daily for 3 months when he was started on ustekinumab (90 mg at weeks 0 and 4, with planned doses every 12 weeks) for psoriatic arthritis in hopes of withdrawing dapsone. His cutaneous symptoms have remained well controlled on this regimen for 18 months. Lowering of dapsone below 100 mg daily has resulted in recurrent mild vasculitis symptoms; he now maintains the once-daily dosing without negative side effects.

Comment

IgA vasculitis is a form of cutaneous small-vessel leukocytoclastic vasculitis (LCV) characterized by episodes of palpable purpura on the extensor surfaces of the arms and legs that may be associated with arthritis, abdominal pain, and/or hematuria. Although vasculitis is a known potential adverse effect of anti–tumor necrosis factor (TNF) α therapy, cases of adalimumab-induced IgA vasculitis are uncommon. As use of more targeted therapies for psoriasis and psoriatic arthritis, such as the IL-17 inhibitor secukinumab, increases so do reports of associated adverse events. Of 6 previously reported cases of secukinumab-associated vasculitis, at least 4 were IgA vasculitis (Table).^1-6 Another case described one patient with rheumatoid arthritis undergoing secukinumab treatment who experienced necrotizing glomerulonephritis; however, the authors concluded secukinumab likely was not causative in that case, as serologies and urinalyses suggested gradual onset of the process prior to initiating the medication.⁷

The exact pathogenesis of IgA vasculitis is unclear, but a prevailing theory involves the dysregulation of IgA synthesis and metabolism. Other than increased serum levels of transforming growth factor β, which is a major stimulating factor for IgA production, it also has been hypothesized that the presence of aberrantly hypoglycosylated IgA exposes an autoepitope for recognition by other pathogenic IgG and IgA, leading to the formation of large immune complexes that can readily deposit in postcapillary venules. The deposition of IgA immune complexes in postcapillary venules and the subsequent activation of the complement system causes direct damage to the endothelial cells of vessel walls. This complement activation is evidenced by vascular complement component 3 deposition on DIF (a nonspecific feature of LCV). Chemotaxis of neutrophils ensues, followed by their firm adherence and transendothelial migration (mediated by monocyte chemoattractant protein 1 [MCP-1]). Neutrophil degranulation releases reactive oxygen species and cytokines, which in turn recruit additional leukocytes to the area of inflammation, subsequently undergoing degeneration (leukocytoclasis). Microvascular permeability also is enhanced by MCP-1, allowing exudation of serum, erythrocytes, and fibrin. In the setting of elevated circulating TNF and IL-1, endothelium is stimulated to activate the intrinsic and extrinsic coagulation pathways. This decreases endothelial fibrinolytic activity, leading to thrombosis. The high venous pressure and low fibrinolytic activity in the lower legs explains why vasculitic lesions often are confined to or begin in this distribution.^1,8-10

There also are noteworthy roles for cytokines in LCV. Circulating transforming growth factor β and IL-6—which are necessary for development of T helper 17 (T_H17) cells and production of IL-17—are higher in patients with LCV compared to controls. Peripheral blood monocytes in patients with LCV demonstrate higher production of IL-17. Once T_H17 cells develop, their survival and phenotype are maintained by IL-23 (considered the master regulator of T_H17 differentiation). IL-17 is a potent chemoattractant of IL-8 (CXCL8) and MCP-1, both of which promote neutrophil-mediated perivascular inflammation. The IL-23 and IL-17 pathways implicated in the pathogenesis of psoriasis also cause neutrophil activation and upregulate transcription of proinflammatory cytokines (IL-1, IL-6, IL-8, and TNF-α), which overlap with those implicated in LCV. Autoimmune disease generally entails some positive feedback loop of progressively severe self-recognition and tissue destruction by the immune system. These shared cytokinetic processes may explain how the internal environment of psoriasis could perpetuate IgA vasculitis.^1,2,8,10-12

The mechanisms underlying vasculitis associated with adalimumab are unclear, but hypotheses involve direct toxicity on vessels, capillary deposition of anti-TNF/TNF immune complexes, or an inflammatory process resulting in autoantibodies. Similar hypotheses are posited for secukinumab-associated vasculitis, including deposition of secukinumab–IL-17 complexes. Anti–TNF-α medications may increase T_H17 cell numbers, leading to increased production of IL-22 and a resultant immunologic microenvironment conducive to vasculitis. All 6 published cases of secukinumab-associated vasculitis that we found had received prior treatment with a TNF-α blocker, but only 1 had occurrence of vasculitis during that treatment.^1-6,10

In the 6 cases we reviewed, the time from starting secukinumab to onset of vasculitis ranged from 1 to 18 months. Our patient’s same-day re-emergence of vasculitis after his first secukinumab dose was so acute that we were skeptical of secukinumab as a potential trigger; this may simply have been coincident to the natural waxing and waning of the vasculitis (although onset of IgA vasculitis within 1 day of starting anti–TNF-α therapy has been reported).^1-6,13  

Specific associations of IgA vasculitis are many and can include bacterial organisms such as Helicobacter pylori, streptococci, and staphylococci. Although internal mucous membrane infections are considered more linked because of the surveillance role of IgA predominantly in mucosal tissues, it is possible that our patient with cutaneous MRSA harbored the same within the nasal mucosa. Our patient also received multiple vaccinations outside our department throughout his clinical course (2 hepatitis B and 1 pneumococcal conjugate), which are known potential triggers for vasculitis. Psychological stress is a known trigger for psoriasis, and given the cytokinetic relationship of psoriasis to vasculitis described previously, it may have indirectly contributed to vasculitis in our case. The anxiety associated with being immunosuppressed during the COVID-19 pandemic and bereavement of losing a family member may have contributed to the refractory nature of our patient’s condition. Renal involvement is relatively common in adults with IgA vasculitis and so should be ruled out, as should occult internal malignancy.^8,10,14

It is unclear which of the above factors was causative in our case, but a multifactorial process is likely. Treatment of monoclonal antibody–associated vasculitis entails investigating for triggers and systemic involvement, removing the most likely culprit, quelling the vasculitis acutely, avoiding known potential exacerbators, and introducing an alternative long-term immunomodulant. In all 6 reported similar cases, discontinuation of secukinumab and initiation of prednisone or colchicine led to resolution.^1-6 Dapsone also is acceptable for acute control of IgA vasculitis, although this medication is highly lipid soluble and penetrates well into various tissues.¹⁵ Thus, lower doses may prove ineffective for obese patients, as was demonstrated in our case. Given the known potential of vaccinations, infections, and other factors (eg, alcohol, penicillin) to trigger IgA vasculitis, these should be avoided.¹⁰

Blockade of IL-23 with ustekinumab has been suggested by other authors encountering secukinumab-associated vasculitis, as IL-23 is the main driver and sustainer of T_H17 cell differentiation.⁸ Although 6 previously reported cases of secukinumab-associated vasculitis achieved resolution without long-term recurrence, none did so using an IL-23 inhibitor (nor had any of the described patients received IL-23 inhibitors previously).^1-6 Given the established safety of IL-23 inhibitors and that they theoretically are well suited for this unique circumstance (by ceasing the main causative cytokine cascades “upstream”) and were efficacious in quickly resolving our patient’s vasculitis, we suggest that ustekinumab may represent an ideal treatment option for patients in whom adalimumab- or secukinumab-associated vasculitis is suspected. Further research is needed given the complex interplay of so many variables and the increasingly common reports of adverse cutaneous events associated with these drugs.^1-6,10 

The Diagnosis: Sister Mary Joseph Nodule

Histopathologic analysis of the biopsy specimen revealed a dense infiltrate of large, hyperchromatic, mucin-producing cells exhibiting varying degrees of nuclear pleomorphism (Figure 1). Immunohistochemical (IHC) staining was negative for cytokeratin (CK) 20; however, CK7 was found positive (Figure 2), which confirmed the presence of a metastatic adenocarcinoma, consistent with the clinical diagnosis of a Sister Mary Joseph nodule (SMJN). Subsequent IHC workup to determine the site of origin revealed densely positive expression of both cancer antigen 125 and paired homeobox gene 8 (PAX-8)(Figure 3), consistent with primary ovarian disease. Furthermore, expression of estrogen receptor and p53 both were positive within the nuclei, illustrating an aberrant expression pattern. On the other hand, cancer antigen 19-9, caudal-type homeobox 2, gross cystic disease fluid protein 15, and mammaglobin were all determined negative, thus leading to the pathologic diagnosis of a metastatic ovarian adenocarcinoma. Additional workup with computed tomography of the abdomen and pelvis highlighted a large left ovarian mass with multiple omental nodules as well as enlarged retroperitoneal and pelvic lymph nodes.

The SMJN is a rare presentation of internal malignancy that appears as a nodule that metastasizes to the umbilicus. It may be ulcerated or necrotic and is seen in up to 10% of patients with cutaneous metastases from internal malignancy.¹ These nodules are named after Sister Mary Joseph, the surgical assistant of Dr. William Mayo who first described the relationship between umbilical nodules seen in patients with gastrointestinal and genitourinary cancer. The most common underlying malignancies include primary gastrointestinal and gynecologic adenocarcinomas. In a retrospective study of 34 patients by Chalya et al,² the stomach was found to be the most common primary site (41.1%). The presence of an SMJN affords a poor prognosis, with a mean overall survival of 11 months from the time of diagnosis.³ The mechanism of disease dissemination remains unknown but is thought to occur through lymphovascular invasion of tumor cells and spread via the umbilical ligament.^1,4

Merkel cell carcinoma is a cutaneous neuroendocrine tumor that most commonly presents in elderly patients as red-violet nodules or plaques. Although Merkel cell carcinoma most frequently is encountered on sun-exposed skin, they also can arise on the trunk and abdomen. Positive IHC staining for CK20 would be expected; however, it was negative in our case.⁵

Cutaneous endometriosis is a rare disease presentation and most commonly occurs as a secondary process due to surgical inoculation of the abdominal wall. Primary cutaneous endometriosis in which there is no history of abdominal surgery less frequently is encountered. Patients typically will report pain and cyclical bleeding with menses. Pathology demonstrates ectopic endometrial tissue with glands and uterine myxoid stroma.⁶

Amelanotic melanoma is an uncommon subtype of malignant melanoma that presents as nonpigmented nodules that have a propensity to ulcerate and bleed. Furthermore, the umbilicus is an exceedingly rare location for primary melanoma. However, one report does exist, and amelanotic melanoma should be considered in the differential for patients with umbilical nodules.⁷

Dermoid cysts are benign congenital lesions that typically present as a painless, slow-growing, and wellcircumscribed nodule, as similarly experienced by our patient. They most commonly are found on the testicles and ovaries but also are known to arise in embryologic fusion planes, and reports of umbilical lesions exist.⁸ Dermoid cysts are diagnosed based on histopathology, supporting the need for a biopsy to distinguish a malignant process from benign lesions.⁹ 

The Diagnosis: Sister Mary Joseph Nodule

Histopathologic analysis of the biopsy specimen revealed a dense infiltrate of large, hyperchromatic, mucin-producing cells exhibiting varying degrees of nuclear pleomorphism (Figure 1). Immunohistochemical (IHC) staining was negative for cytokeratin (CK) 20; however, CK7 was found positive (Figure 2), which confirmed the presence of a metastatic adenocarcinoma, consistent with the clinical diagnosis of a Sister Mary Joseph nodule (SMJN). Subsequent IHC workup to determine the site of origin revealed densely positive expression of both cancer antigen 125 and paired homeobox gene 8 (PAX-8)(Figure 3), consistent with primary ovarian disease. Furthermore, expression of estrogen receptor and p53 both were positive within the nuclei, illustrating an aberrant expression pattern. On the other hand, cancer antigen 19-9, caudal-type homeobox 2, gross cystic disease fluid protein 15, and mammaglobin were all determined negative, thus leading to the pathologic diagnosis of a metastatic ovarian adenocarcinoma. Additional workup with computed tomography of the abdomen and pelvis highlighted a large left ovarian mass with multiple omental nodules as well as enlarged retroperitoneal and pelvic lymph nodes.

The SMJN is a rare presentation of internal malignancy that appears as a nodule that metastasizes to the umbilicus. It may be ulcerated or necrotic and is seen in up to 10% of patients with cutaneous metastases from internal malignancy.¹ These nodules are named after Sister Mary Joseph, the surgical assistant of Dr. William Mayo who first described the relationship between umbilical nodules seen in patients with gastrointestinal and genitourinary cancer. The most common underlying malignancies include primary gastrointestinal and gynecologic adenocarcinomas. In a retrospective study of 34 patients by Chalya et al,² the stomach was found to be the most common primary site (41.1%). The presence of an SMJN affords a poor prognosis, with a mean overall survival of 11 months from the time of diagnosis.³ The mechanism of disease dissemination remains unknown but is thought to occur through lymphovascular invasion of tumor cells and spread via the umbilical ligament.^1,4

Merkel cell carcinoma is a cutaneous neuroendocrine tumor that most commonly presents in elderly patients as red-violet nodules or plaques. Although Merkel cell carcinoma most frequently is encountered on sun-exposed skin, they also can arise on the trunk and abdomen. Positive IHC staining for CK20 would be expected; however, it was negative in our case.⁵

Cutaneous endometriosis is a rare disease presentation and most commonly occurs as a secondary process due to surgical inoculation of the abdominal wall. Primary cutaneous endometriosis in which there is no history of abdominal surgery less frequently is encountered. Patients typically will report pain and cyclical bleeding with menses. Pathology demonstrates ectopic endometrial tissue with glands and uterine myxoid stroma.⁶

Amelanotic melanoma is an uncommon subtype of malignant melanoma that presents as nonpigmented nodules that have a propensity to ulcerate and bleed. Furthermore, the umbilicus is an exceedingly rare location for primary melanoma. However, one report does exist, and amelanotic melanoma should be considered in the differential for patients with umbilical nodules.⁷

Dermoid cysts are benign congenital lesions that typically present as a painless, slow-growing, and wellcircumscribed nodule, as similarly experienced by our patient. They most commonly are found on the testicles and ovaries but also are known to arise in embryologic fusion planes, and reports of umbilical lesions exist.⁸ Dermoid cysts are diagnosed based on histopathology, supporting the need for a biopsy to distinguish a malignant process from benign lesions.⁹ 

The Diagnosis: Sister Mary Joseph Nodule

Histopathologic analysis of the biopsy specimen revealed a dense infiltrate of large, hyperchromatic, mucin-producing cells exhibiting varying degrees of nuclear pleomorphism (Figure 1). Immunohistochemical (IHC) staining was negative for cytokeratin (CK) 20; however, CK7 was found positive (Figure 2), which confirmed the presence of a metastatic adenocarcinoma, consistent with the clinical diagnosis of a Sister Mary Joseph nodule (SMJN). Subsequent IHC workup to determine the site of origin revealed densely positive expression of both cancer antigen 125 and paired homeobox gene 8 (PAX-8)(Figure 3), consistent with primary ovarian disease. Furthermore, expression of estrogen receptor and p53 both were positive within the nuclei, illustrating an aberrant expression pattern. On the other hand, cancer antigen 19-9, caudal-type homeobox 2, gross cystic disease fluid protein 15, and mammaglobin were all determined negative, thus leading to the pathologic diagnosis of a metastatic ovarian adenocarcinoma. Additional workup with computed tomography of the abdomen and pelvis highlighted a large left ovarian mass with multiple omental nodules as well as enlarged retroperitoneal and pelvic lymph nodes.

The SMJN is a rare presentation of internal malignancy that appears as a nodule that metastasizes to the umbilicus. It may be ulcerated or necrotic and is seen in up to 10% of patients with cutaneous metastases from internal malignancy.¹ These nodules are named after Sister Mary Joseph, the surgical assistant of Dr. William Mayo who first described the relationship between umbilical nodules seen in patients with gastrointestinal and genitourinary cancer. The most common underlying malignancies include primary gastrointestinal and gynecologic adenocarcinomas. In a retrospective study of 34 patients by Chalya et al,² the stomach was found to be the most common primary site (41.1%). The presence of an SMJN affords a poor prognosis, with a mean overall survival of 11 months from the time of diagnosis.³ The mechanism of disease dissemination remains unknown but is thought to occur through lymphovascular invasion of tumor cells and spread via the umbilical ligament.^1,4

Merkel cell carcinoma is a cutaneous neuroendocrine tumor that most commonly presents in elderly patients as red-violet nodules or plaques. Although Merkel cell carcinoma most frequently is encountered on sun-exposed skin, they also can arise on the trunk and abdomen. Positive IHC staining for CK20 would be expected; however, it was negative in our case.⁵

Cutaneous endometriosis is a rare disease presentation and most commonly occurs as a secondary process due to surgical inoculation of the abdominal wall. Primary cutaneous endometriosis in which there is no history of abdominal surgery less frequently is encountered. Patients typically will report pain and cyclical bleeding with menses. Pathology demonstrates ectopic endometrial tissue with glands and uterine myxoid stroma.⁶

Amelanotic melanoma is an uncommon subtype of malignant melanoma that presents as nonpigmented nodules that have a propensity to ulcerate and bleed. Furthermore, the umbilicus is an exceedingly rare location for primary melanoma. However, one report does exist, and amelanotic melanoma should be considered in the differential for patients with umbilical nodules.⁷

Dermoid cysts are benign congenital lesions that typically present as a painless, slow-growing, and wellcircumscribed nodule, as similarly experienced by our patient. They most commonly are found on the testicles and ovaries but also are known to arise in embryologic fusion planes, and reports of umbilical lesions exist.⁸ Dermoid cysts are diagnosed based on histopathology, supporting the need for a biopsy to distinguish a malignant process from benign lesions.⁹ 

Key clinical point: Preoperative elevated plasma D-dimer levels serve as an independent risk factor for poorer long-term survival outcomes in patients who have undergone curative surgery for gastric cancer.

Major finding: Multivariate analysis revealed elevated D-dimer levels to be independently associated with shorter overall survival (adjusted hazard ratio [aHR] 1.633; P = .003) and disease-free survival (aHR 1.58; P = .005).

Study details: Findings are from a retrospective study that included 903 patients with gastric cancer who underwent radical gastrectomy.

Disclosures: This study was sponsored by the National Natural Science Foundation of China, among others. The authors declared no conflicts of interest.

Source: Zhang X et al. D-dimer, a predictor of bad outcome in gastric cancer patients undergoing radical resection. Sci Rep. 2022;12:16432 (Sep 30). Doi: 10.1038/s41598-022-16582-9

Key clinical point: Preoperative elevated plasma D-dimer levels serve as an independent risk factor for poorer long-term survival outcomes in patients who have undergone curative surgery for gastric cancer.

Major finding: Multivariate analysis revealed elevated D-dimer levels to be independently associated with shorter overall survival (adjusted hazard ratio [aHR] 1.633; P = .003) and disease-free survival (aHR 1.58; P = .005).

Study details: Findings are from a retrospective study that included 903 patients with gastric cancer who underwent radical gastrectomy.

Disclosures: This study was sponsored by the National Natural Science Foundation of China, among others. The authors declared no conflicts of interest.

Source: Zhang X et al. D-dimer, a predictor of bad outcome in gastric cancer patients undergoing radical resection. Sci Rep. 2022;12:16432 (Sep 30). Doi: 10.1038/s41598-022-16582-9

Key clinical point: Preoperative elevated plasma D-dimer levels serve as an independent risk factor for poorer long-term survival outcomes in patients who have undergone curative surgery for gastric cancer.

Major finding: Multivariate analysis revealed elevated D-dimer levels to be independently associated with shorter overall survival (adjusted hazard ratio [aHR] 1.633; P = .003) and disease-free survival (aHR 1.58; P = .005).

Study details: Findings are from a retrospective study that included 903 patients with gastric cancer who underwent radical gastrectomy.

Disclosures: This study was sponsored by the National Natural Science Foundation of China, among others. The authors declared no conflicts of interest.

Source: Zhang X et al. D-dimer, a predictor of bad outcome in gastric cancer patients undergoing radical resection. Sci Rep. 2022;12:16432 (Sep 30). Doi: 10.1038/s41598-022-16582-9

Key clinical point: Helicobacter pylori (HP) infection is associated with the tumor expression of programmed death ligand-1 (PD-L1) in patients with gastric cancer.

Major finding: HP infection was significantly associated with the tumor expression of PD-L1 in patients with gastric cancer (odds ratio 1.90; P < .001), with the association not being significantly affected by the sample size, evaluation methods for PD-L1 expression, or quality score (all P > .05).

Study details: This meta-analysis of 10 observational studies investigated the association between HP infection and the tumor expression of PD-L1 in 1870 patients with gastric cancer.

Disclosures: This study was sponsored by the Natural Science Foundation of the Anhui Higher Education Institutions of China and others. The authors declared no conflicts of interest.

Source: Zhu Y et al. Helicobacter pylori infection and PD-L1 expression in gastric cancer: A meta-analysis. Eur J Clin Invest. 2022:e13880 (Sep 27). Doi: 10.1111/eci.13880

Key clinical point: Helicobacter pylori (HP) infection is associated with the tumor expression of programmed death ligand-1 (PD-L1) in patients with gastric cancer.

Major finding: HP infection was significantly associated with the tumor expression of PD-L1 in patients with gastric cancer (odds ratio 1.90; P < .001), with the association not being significantly affected by the sample size, evaluation methods for PD-L1 expression, or quality score (all P > .05).

Study details: This meta-analysis of 10 observational studies investigated the association between HP infection and the tumor expression of PD-L1 in 1870 patients with gastric cancer.

Disclosures: This study was sponsored by the Natural Science Foundation of the Anhui Higher Education Institutions of China and others. The authors declared no conflicts of interest.

Source: Zhu Y et al. Helicobacter pylori infection and PD-L1 expression in gastric cancer: A meta-analysis. Eur J Clin Invest. 2022:e13880 (Sep 27). Doi: 10.1111/eci.13880

Key clinical point: Helicobacter pylori (HP) infection is associated with the tumor expression of programmed death ligand-1 (PD-L1) in patients with gastric cancer.

Major finding: HP infection was significantly associated with the tumor expression of PD-L1 in patients with gastric cancer (odds ratio 1.90; P < .001), with the association not being significantly affected by the sample size, evaluation methods for PD-L1 expression, or quality score (all P > .05).

Study details: This meta-analysis of 10 observational studies investigated the association between HP infection and the tumor expression of PD-L1 in 1870 patients with gastric cancer.

Disclosures: This study was sponsored by the Natural Science Foundation of the Anhui Higher Education Institutions of China and others. The authors declared no conflicts of interest.

Source: Zhu Y et al. Helicobacter pylori infection and PD-L1 expression in gastric cancer: A meta-analysis. Eur J Clin Invest. 2022:e13880 (Sep 27). Doi: 10.1111/eci.13880

Key clinical point: In patients with early gastric cancer (EGC), pylorus-preserving gastrectomy (PPG) vs conventional distal gastrectomy (CDG) results in the harvest of fewer lymph nodes at stations 5, 6, 9, and 11p but similar survival outcomes.

Major finding: Patients who underwent PPG vs CDG had significantly lower numbers of lymph nodes harvested at stations 5, 6, 9, and 11p (weighted mean difference, −3.09; P < .001) but similar overall survival (hazard ratio [HR] 0.63; P = .852) and recurrence-free survival (HR 0.29; P = .900).

Study details: This was a meta-analysis of 16 studies including 4500 patients with EGC who had undergone PPG or CDG with lymph node dissection.

Disclosures: This study was sponsored by the Peking University People’s Hospital Research and Development Fund. The authors declared no conflicts of interest.

Source: Hou S et al. Pathological and oncological outcomes of pylorus-preserving versus conventional distal gastrectomy in early gastric cancer: A systematic review and meta-analysis. World J Surg Oncol. 2022;20:308 (Sep 24). Doi: 10.1186/s12957-022-02766-0

Key clinical point: In patients with early gastric cancer (EGC), pylorus-preserving gastrectomy (PPG) vs conventional distal gastrectomy (CDG) results in the harvest of fewer lymph nodes at stations 5, 6, 9, and 11p but similar survival outcomes.

Major finding: Patients who underwent PPG vs CDG had significantly lower numbers of lymph nodes harvested at stations 5, 6, 9, and 11p (weighted mean difference, −3.09; P < .001) but similar overall survival (hazard ratio [HR] 0.63; P = .852) and recurrence-free survival (HR 0.29; P = .900).

Study details: This was a meta-analysis of 16 studies including 4500 patients with EGC who had undergone PPG or CDG with lymph node dissection.

Disclosures: This study was sponsored by the Peking University People’s Hospital Research and Development Fund. The authors declared no conflicts of interest.

Source: Hou S et al. Pathological and oncological outcomes of pylorus-preserving versus conventional distal gastrectomy in early gastric cancer: A systematic review and meta-analysis. World J Surg Oncol. 2022;20:308 (Sep 24). Doi: 10.1186/s12957-022-02766-0

Key clinical point: In patients with early gastric cancer (EGC), pylorus-preserving gastrectomy (PPG) vs conventional distal gastrectomy (CDG) results in the harvest of fewer lymph nodes at stations 5, 6, 9, and 11p but similar survival outcomes.

Major finding: Patients who underwent PPG vs CDG had significantly lower numbers of lymph nodes harvested at stations 5, 6, 9, and 11p (weighted mean difference, −3.09; P < .001) but similar overall survival (hazard ratio [HR] 0.63; P = .852) and recurrence-free survival (HR 0.29; P = .900).

Study details: This was a meta-analysis of 16 studies including 4500 patients with EGC who had undergone PPG or CDG with lymph node dissection.

Disclosures: This study was sponsored by the Peking University People’s Hospital Research and Development Fund. The authors declared no conflicts of interest.

Source: Hou S et al. Pathological and oncological outcomes of pylorus-preserving versus conventional distal gastrectomy in early gastric cancer: A systematic review and meta-analysis. World J Surg Oncol. 2022;20:308 (Sep 24). Doi: 10.1186/s12957-022-02766-0