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‘Impressive’ results with neoadjuvant T-VEC in advanced melanoma
T-VEC is a modified virus that lyses tumor cells locally and induces a systemic immune response. In the phase 2 trial, neoadjuvant T-VEC plus surgery improved 3-year recurrence-free survival, when compared with immediate surgery, in patients with resectable melanoma.
“This is the first neoadjuvant trial for an approved oncolytic virus in melanoma and the largest randomized prospectively controlled neoadjuvant melanoma trial completed to date,” said investigator Reinhard Dummer, MD, of University Hospital Zürich.
The multicenter trial enrolled 150 patients with resectable stage IIIB–IV M1a melanoma (thereby including many with in-transit metastasis) who had at least one injectable lesion.
“This patient population is typically excluded from the trials that are published. Those trials typically focus on lymph node metastasis only,” Dr. Dummer noted.
The patients were randomized evenly to receive six doses over 12 weeks of intralesional T-VEC followed by surgical resection, or to the conventional approach of immediate surgical resection.
Survival results
The median follow-up for this interim analysis was 41.3 months.
The 3-year rate of recurrence-free survival, the trial’s primary endpoint, was 46.5% with T-VEC plus surgery and 31.0% with immediate surgery (hazard ratio, 0.67; P = .043). The median duration of recurrence-free survival was 27.5 months and 5.4 months, respectively.
These results were comparable with results seen at 2 years, which were published in Annals of Oncology in 2019. The 2-year rate of recurrence-free survival was 50.5% with T-VEC plus surgery and 31.0% with immediate surgery (HR, 0.66; P = .038).
“These patients appear to be in a plateau phase now,” Dr. Dummer remarked.
The 3-year rate of event-free survival, which excluded any events related to a delay of surgery, was 50.3% for T-VEC and 32.7% for immediate surgery (HR, 0.58, P = .015).
Findings for both outcomes were similar when analyses were repeated after removing events that occurred after receipt of therapy in the adjuvant or metastatic setting.
Finally, the 3-year rate of overall survival was 83.2% with T-VEC plus surgery and 71.6% with immediate surgery (HR, 0.54; P = .061). Respective 2-year values were 88.9% and 77.4% (HR, 0.49; P = .050).
In all, 50.7% of patients in the T-VEC group received subsequent anticancer therapy, compared with 76.8% in the immediate-surgery group. Respective values specifically for subsequent immunotherapy – usually immune checkpoint inhibitors – were 32.9% and 46.4%.
“I think this is a good argument that the effects we see on overall survival and recurrence-free survival are not caused by improved second-line treatments,” Dr. Dummer said.
No new safety signals emerged during the additional year of follow-up. The trial’s final analysis will be conducted after 5 years of follow-up.
“These results build upon the prior 2-year results to support the potential beneficial effect of neoadjuvant T-VEC on advanced resectable melanoma,” Dr. Dummer said.
“In general, if you compare this to the objective outcomes that we see with neoadjuvant ipilimumab-nivolumab, for example, the results do not look very attractive,” he acknowledged.
“However, we have to keep in mind that this is a difficult patient population,” he added, noting that many patients have in-transit metastases that would disqualify them from conventional neoadjuvant therapy. Also, cross-trial comparisons are complicated by the need to allow adjuvant therapy in patients who receive neoadjuvant therapy.
“I would say the combination of ipilimumab-nivolumab should be more powerful, but T-VEC has some impact, and from my understanding, T-VEC would be a perfect partner for a combination, for example, with an anti–[programmed death 1] agent,” Dr. Dummer concluded.
‘Impressive’ data support more research
“Neoadjuvant approaches are gaining enthusiasm for patients with locally advanced disease that may not be amenable to simple excision or may require large disfiguring procedures,” said Howard L. Kaufman, MD, of Massachusetts General Hospital and Dana Farber/Harvard Cancer Center, both in Boston, who was not involved in this study.
“A treatment option that could induce tumor regression while also promoting immune responses against the tumor is attractive,” Dr. Kaufman added.
“I continue to be impressed with this clinical trial as it demonstrates a consistent improvement in recurrence-free survival, event-free survival, and overall survival for patients treated with neoadjuvant T-VEC and surgery, compared to those who undergo surgery alone,” he said in an interview. “Confirmation that the responses are now maintained for another year is an important milestone.”
Given the study’s fairly small size, large treatment differences would be needed to attain the observed statistical significance, and “this is why the data at 3 years of follow-up is so impressive,” Dr. Kaufman said.
However, benefit of T-VEC’s activity in inducing a systemic immune response may not become fully evident until the end of the trial.
“Overall survival at 5 years is the most relevant endpoint,” Dr. Kaufman maintained.
An important aspect of the study is that it enrolled patients with a range of melanoma stages, including about 18% with stage IV M1a disease, he added.
“This could potentially influence the results, where earlier-stage patients may have a more durable response, compared to higher-stage patients and, thus, the data may be further diluted by the small sample size,” he proposed. “Given this possibility, my sense is that the data is even more impressive since there still appears to be a significant clinical benefit at 3 years, and I would recommend larger studies in patients with earlier-stage melanoma as fertile ground for further oncolytic virus drug development.”
The current trial was funded by Amgen. Dr. Dummer disclosed relationships with Amgen, Novartis, Merck Sharp & Dohme, Bristol-Myers Squibb, Roche, Takeda, Pierre Fabre, Sun Pharma, Sanofi, and CatalYm. Dr. Kaufman disclosed employment by Immuneering.
SOURCE: Dummer R et al. SITC 2020, Abstract 432.
T-VEC is a modified virus that lyses tumor cells locally and induces a systemic immune response. In the phase 2 trial, neoadjuvant T-VEC plus surgery improved 3-year recurrence-free survival, when compared with immediate surgery, in patients with resectable melanoma.
“This is the first neoadjuvant trial for an approved oncolytic virus in melanoma and the largest randomized prospectively controlled neoadjuvant melanoma trial completed to date,” said investigator Reinhard Dummer, MD, of University Hospital Zürich.
The multicenter trial enrolled 150 patients with resectable stage IIIB–IV M1a melanoma (thereby including many with in-transit metastasis) who had at least one injectable lesion.
“This patient population is typically excluded from the trials that are published. Those trials typically focus on lymph node metastasis only,” Dr. Dummer noted.
The patients were randomized evenly to receive six doses over 12 weeks of intralesional T-VEC followed by surgical resection, or to the conventional approach of immediate surgical resection.
Survival results
The median follow-up for this interim analysis was 41.3 months.
The 3-year rate of recurrence-free survival, the trial’s primary endpoint, was 46.5% with T-VEC plus surgery and 31.0% with immediate surgery (hazard ratio, 0.67; P = .043). The median duration of recurrence-free survival was 27.5 months and 5.4 months, respectively.
These results were comparable with results seen at 2 years, which were published in Annals of Oncology in 2019. The 2-year rate of recurrence-free survival was 50.5% with T-VEC plus surgery and 31.0% with immediate surgery (HR, 0.66; P = .038).
“These patients appear to be in a plateau phase now,” Dr. Dummer remarked.
The 3-year rate of event-free survival, which excluded any events related to a delay of surgery, was 50.3% for T-VEC and 32.7% for immediate surgery (HR, 0.58, P = .015).
Findings for both outcomes were similar when analyses were repeated after removing events that occurred after receipt of therapy in the adjuvant or metastatic setting.
Finally, the 3-year rate of overall survival was 83.2% with T-VEC plus surgery and 71.6% with immediate surgery (HR, 0.54; P = .061). Respective 2-year values were 88.9% and 77.4% (HR, 0.49; P = .050).
In all, 50.7% of patients in the T-VEC group received subsequent anticancer therapy, compared with 76.8% in the immediate-surgery group. Respective values specifically for subsequent immunotherapy – usually immune checkpoint inhibitors – were 32.9% and 46.4%.
“I think this is a good argument that the effects we see on overall survival and recurrence-free survival are not caused by improved second-line treatments,” Dr. Dummer said.
No new safety signals emerged during the additional year of follow-up. The trial’s final analysis will be conducted after 5 years of follow-up.
“These results build upon the prior 2-year results to support the potential beneficial effect of neoadjuvant T-VEC on advanced resectable melanoma,” Dr. Dummer said.
“In general, if you compare this to the objective outcomes that we see with neoadjuvant ipilimumab-nivolumab, for example, the results do not look very attractive,” he acknowledged.
“However, we have to keep in mind that this is a difficult patient population,” he added, noting that many patients have in-transit metastases that would disqualify them from conventional neoadjuvant therapy. Also, cross-trial comparisons are complicated by the need to allow adjuvant therapy in patients who receive neoadjuvant therapy.
“I would say the combination of ipilimumab-nivolumab should be more powerful, but T-VEC has some impact, and from my understanding, T-VEC would be a perfect partner for a combination, for example, with an anti–[programmed death 1] agent,” Dr. Dummer concluded.
‘Impressive’ data support more research
“Neoadjuvant approaches are gaining enthusiasm for patients with locally advanced disease that may not be amenable to simple excision or may require large disfiguring procedures,” said Howard L. Kaufman, MD, of Massachusetts General Hospital and Dana Farber/Harvard Cancer Center, both in Boston, who was not involved in this study.
“A treatment option that could induce tumor regression while also promoting immune responses against the tumor is attractive,” Dr. Kaufman added.
“I continue to be impressed with this clinical trial as it demonstrates a consistent improvement in recurrence-free survival, event-free survival, and overall survival for patients treated with neoadjuvant T-VEC and surgery, compared to those who undergo surgery alone,” he said in an interview. “Confirmation that the responses are now maintained for another year is an important milestone.”
Given the study’s fairly small size, large treatment differences would be needed to attain the observed statistical significance, and “this is why the data at 3 years of follow-up is so impressive,” Dr. Kaufman said.
However, benefit of T-VEC’s activity in inducing a systemic immune response may not become fully evident until the end of the trial.
“Overall survival at 5 years is the most relevant endpoint,” Dr. Kaufman maintained.
An important aspect of the study is that it enrolled patients with a range of melanoma stages, including about 18% with stage IV M1a disease, he added.
“This could potentially influence the results, where earlier-stage patients may have a more durable response, compared to higher-stage patients and, thus, the data may be further diluted by the small sample size,” he proposed. “Given this possibility, my sense is that the data is even more impressive since there still appears to be a significant clinical benefit at 3 years, and I would recommend larger studies in patients with earlier-stage melanoma as fertile ground for further oncolytic virus drug development.”
The current trial was funded by Amgen. Dr. Dummer disclosed relationships with Amgen, Novartis, Merck Sharp & Dohme, Bristol-Myers Squibb, Roche, Takeda, Pierre Fabre, Sun Pharma, Sanofi, and CatalYm. Dr. Kaufman disclosed employment by Immuneering.
SOURCE: Dummer R et al. SITC 2020, Abstract 432.
T-VEC is a modified virus that lyses tumor cells locally and induces a systemic immune response. In the phase 2 trial, neoadjuvant T-VEC plus surgery improved 3-year recurrence-free survival, when compared with immediate surgery, in patients with resectable melanoma.
“This is the first neoadjuvant trial for an approved oncolytic virus in melanoma and the largest randomized prospectively controlled neoadjuvant melanoma trial completed to date,” said investigator Reinhard Dummer, MD, of University Hospital Zürich.
The multicenter trial enrolled 150 patients with resectable stage IIIB–IV M1a melanoma (thereby including many with in-transit metastasis) who had at least one injectable lesion.
“This patient population is typically excluded from the trials that are published. Those trials typically focus on lymph node metastasis only,” Dr. Dummer noted.
The patients were randomized evenly to receive six doses over 12 weeks of intralesional T-VEC followed by surgical resection, or to the conventional approach of immediate surgical resection.
Survival results
The median follow-up for this interim analysis was 41.3 months.
The 3-year rate of recurrence-free survival, the trial’s primary endpoint, was 46.5% with T-VEC plus surgery and 31.0% with immediate surgery (hazard ratio, 0.67; P = .043). The median duration of recurrence-free survival was 27.5 months and 5.4 months, respectively.
These results were comparable with results seen at 2 years, which were published in Annals of Oncology in 2019. The 2-year rate of recurrence-free survival was 50.5% with T-VEC plus surgery and 31.0% with immediate surgery (HR, 0.66; P = .038).
“These patients appear to be in a plateau phase now,” Dr. Dummer remarked.
The 3-year rate of event-free survival, which excluded any events related to a delay of surgery, was 50.3% for T-VEC and 32.7% for immediate surgery (HR, 0.58, P = .015).
Findings for both outcomes were similar when analyses were repeated after removing events that occurred after receipt of therapy in the adjuvant or metastatic setting.
Finally, the 3-year rate of overall survival was 83.2% with T-VEC plus surgery and 71.6% with immediate surgery (HR, 0.54; P = .061). Respective 2-year values were 88.9% and 77.4% (HR, 0.49; P = .050).
In all, 50.7% of patients in the T-VEC group received subsequent anticancer therapy, compared with 76.8% in the immediate-surgery group. Respective values specifically for subsequent immunotherapy – usually immune checkpoint inhibitors – were 32.9% and 46.4%.
“I think this is a good argument that the effects we see on overall survival and recurrence-free survival are not caused by improved second-line treatments,” Dr. Dummer said.
No new safety signals emerged during the additional year of follow-up. The trial’s final analysis will be conducted after 5 years of follow-up.
“These results build upon the prior 2-year results to support the potential beneficial effect of neoadjuvant T-VEC on advanced resectable melanoma,” Dr. Dummer said.
“In general, if you compare this to the objective outcomes that we see with neoadjuvant ipilimumab-nivolumab, for example, the results do not look very attractive,” he acknowledged.
“However, we have to keep in mind that this is a difficult patient population,” he added, noting that many patients have in-transit metastases that would disqualify them from conventional neoadjuvant therapy. Also, cross-trial comparisons are complicated by the need to allow adjuvant therapy in patients who receive neoadjuvant therapy.
“I would say the combination of ipilimumab-nivolumab should be more powerful, but T-VEC has some impact, and from my understanding, T-VEC would be a perfect partner for a combination, for example, with an anti–[programmed death 1] agent,” Dr. Dummer concluded.
‘Impressive’ data support more research
“Neoadjuvant approaches are gaining enthusiasm for patients with locally advanced disease that may not be amenable to simple excision or may require large disfiguring procedures,” said Howard L. Kaufman, MD, of Massachusetts General Hospital and Dana Farber/Harvard Cancer Center, both in Boston, who was not involved in this study.
“A treatment option that could induce tumor regression while also promoting immune responses against the tumor is attractive,” Dr. Kaufman added.
“I continue to be impressed with this clinical trial as it demonstrates a consistent improvement in recurrence-free survival, event-free survival, and overall survival for patients treated with neoadjuvant T-VEC and surgery, compared to those who undergo surgery alone,” he said in an interview. “Confirmation that the responses are now maintained for another year is an important milestone.”
Given the study’s fairly small size, large treatment differences would be needed to attain the observed statistical significance, and “this is why the data at 3 years of follow-up is so impressive,” Dr. Kaufman said.
However, benefit of T-VEC’s activity in inducing a systemic immune response may not become fully evident until the end of the trial.
“Overall survival at 5 years is the most relevant endpoint,” Dr. Kaufman maintained.
An important aspect of the study is that it enrolled patients with a range of melanoma stages, including about 18% with stage IV M1a disease, he added.
“This could potentially influence the results, where earlier-stage patients may have a more durable response, compared to higher-stage patients and, thus, the data may be further diluted by the small sample size,” he proposed. “Given this possibility, my sense is that the data is even more impressive since there still appears to be a significant clinical benefit at 3 years, and I would recommend larger studies in patients with earlier-stage melanoma as fertile ground for further oncolytic virus drug development.”
The current trial was funded by Amgen. Dr. Dummer disclosed relationships with Amgen, Novartis, Merck Sharp & Dohme, Bristol-Myers Squibb, Roche, Takeda, Pierre Fabre, Sun Pharma, Sanofi, and CatalYm. Dr. Kaufman disclosed employment by Immuneering.
SOURCE: Dummer R et al. SITC 2020, Abstract 432.
FROM SITC 2020
Cancer rates on the rise in adolescents and young adults
Rates of cancer increased by 30% from 1973 to 2015 in adolescents and young adults (AYAs) aged 15–39 years in the United States, according to a review of almost a half million cases in the National Institutes of Health’s Surveillance, Epidemiology, and End Results database.
There was an annual increase of 0.537 new cases per 100,000 people, from 57.2 cases per 100,000 in 1973 to 74.2 in 2015.
Kidney carcinoma led with the highest rate increase. There were also marked increases in thyroid and colorectal carcinoma, germ cell and trophoblastic neoplasms, and melanoma, among others.
The report was published online December 1 in JAMA Network Open.
“Clinicians should be on the lookout for these cancers in their adolescent and young adult patients,” said senior investigator Nicholas Zaorsky, MD, an assistant professor of radiation oncology and public health sciences at the Penn State Cancer Institute, Hershey, Pennsylvania.
“Now that there is a better understanding of the types of cancer that are prevalent and rising in this age group, prevention, screening, diagnosis and treatment protocols specifically targeted to this population should be developed,” he said in a press release.
The reasons for the increases are unclear, but environmental and dietary factors, increasing obesity, and changing screening practices are likely in play, the authors comment. In addition, “cancer screening and overdiagnosis are thought to account for much of the increasing rates of thyroid and kidney carcinoma, among others,” they add.
The American Cancer Society (ACS) recently found similar increases in thyroid, kidney, and colorectal cancer among AYAs, as well as an increase in uterine cancer.
It’s important to note, however, that “this phenomenon is largely driven by trends for thyroid cancer, which is thought to be a result of overdiagnosis,” said ACS surveillance researcher Kimberly Miller, MPH, when asked to comment on the new study.
“As such, it is extremely important to also consider trends in cancer mortality rates among this age group, which are declining overall but are increasing for colorectal and uterine cancers. The fact that both incidence and mortality rates are increasing for these two cancers suggests a true increase in disease burden and certainly requires further attention and research,” she said.
Historically, management of cancer in AYAs has fallen somewhere between pediatric and adult oncology, neither of which capture the distinct biological, social, and economic needs of AYAs. Research has also focused on childhood and adult cancers, leaving cancer in AYAs inadequately studied.
The new findings are “valuable to guide more targeted research and interventions specifically to AYAs,” Zaorsky and colleagues say in their report.
Among female patients ― 59.1% of the study population ― incidence increased for 15 cancers, including kidney carcinoma (annual percent change [APC], 3.632), thyroid carcinoma (APC, 3.456), and myeloma, mast cell, and miscellaneous lymphoreticular neoplasms not otherwise specified (APC, 2.805). Rates of five cancers declined, led by astrocytoma not otherwise specified (APC, –3.369) and carcinoma of the gonads (APC, –1.743).
Among male patients, incidence increased for 14 cancers, including kidney carcinoma (APC, 3.572), unspecified soft tissue sarcoma (APC 2.543), and thyroid carcinoma (APC, 2.273). Incidence fell for seven, led by astrocytoma not otherwise specified (APC, –3.759) and carcinoma of the trachea, bronchus, and lung (APC, –2.635).
Increased testicular cancer rates (APC, 1.246) could be related to greater prenatal exposure to estrogen and progesterone or through dairy consumption; increasing survival of premature infants; and greater exposure to cannabis, among other possibilities, the investigators say.
Increases in colorectal cancer might be related to fewer vegetables and more fat and processed meat in the diet; lack of exercise; and increasing obesity. Human papillomavirus infection has also been implicated.
Higher rates of melanoma could be related to tanning bed use.
Declines in some cancers could be related to greater use of oral contraceptives; laws reducing exposure to benzene and other chemicals; and fewer people smoking.
Although kidney carcinoma has increased at the greatest rate, it’s uncommon. Colorectal and thyroid carcinoma, melanoma, non-Hodgkin lymphoma, and germ cell and trophoblastic neoplasms of the gonads contribute more to the overall increase in cancers among AYAs, the investigators note.
Almost 80% of the patients were White; 10.3% were Black.
The study was funded by the National Center for Advancing Translational Sciences. The investigators have disclosed no relevant financial relationships.
This article first appeared on Medscape.com.
Rates of cancer increased by 30% from 1973 to 2015 in adolescents and young adults (AYAs) aged 15–39 years in the United States, according to a review of almost a half million cases in the National Institutes of Health’s Surveillance, Epidemiology, and End Results database.
There was an annual increase of 0.537 new cases per 100,000 people, from 57.2 cases per 100,000 in 1973 to 74.2 in 2015.
Kidney carcinoma led with the highest rate increase. There were also marked increases in thyroid and colorectal carcinoma, germ cell and trophoblastic neoplasms, and melanoma, among others.
The report was published online December 1 in JAMA Network Open.
“Clinicians should be on the lookout for these cancers in their adolescent and young adult patients,” said senior investigator Nicholas Zaorsky, MD, an assistant professor of radiation oncology and public health sciences at the Penn State Cancer Institute, Hershey, Pennsylvania.
“Now that there is a better understanding of the types of cancer that are prevalent and rising in this age group, prevention, screening, diagnosis and treatment protocols specifically targeted to this population should be developed,” he said in a press release.
The reasons for the increases are unclear, but environmental and dietary factors, increasing obesity, and changing screening practices are likely in play, the authors comment. In addition, “cancer screening and overdiagnosis are thought to account for much of the increasing rates of thyroid and kidney carcinoma, among others,” they add.
The American Cancer Society (ACS) recently found similar increases in thyroid, kidney, and colorectal cancer among AYAs, as well as an increase in uterine cancer.
It’s important to note, however, that “this phenomenon is largely driven by trends for thyroid cancer, which is thought to be a result of overdiagnosis,” said ACS surveillance researcher Kimberly Miller, MPH, when asked to comment on the new study.
“As such, it is extremely important to also consider trends in cancer mortality rates among this age group, which are declining overall but are increasing for colorectal and uterine cancers. The fact that both incidence and mortality rates are increasing for these two cancers suggests a true increase in disease burden and certainly requires further attention and research,” she said.
Historically, management of cancer in AYAs has fallen somewhere between pediatric and adult oncology, neither of which capture the distinct biological, social, and economic needs of AYAs. Research has also focused on childhood and adult cancers, leaving cancer in AYAs inadequately studied.
The new findings are “valuable to guide more targeted research and interventions specifically to AYAs,” Zaorsky and colleagues say in their report.
Among female patients ― 59.1% of the study population ― incidence increased for 15 cancers, including kidney carcinoma (annual percent change [APC], 3.632), thyroid carcinoma (APC, 3.456), and myeloma, mast cell, and miscellaneous lymphoreticular neoplasms not otherwise specified (APC, 2.805). Rates of five cancers declined, led by astrocytoma not otherwise specified (APC, –3.369) and carcinoma of the gonads (APC, –1.743).
Among male patients, incidence increased for 14 cancers, including kidney carcinoma (APC, 3.572), unspecified soft tissue sarcoma (APC 2.543), and thyroid carcinoma (APC, 2.273). Incidence fell for seven, led by astrocytoma not otherwise specified (APC, –3.759) and carcinoma of the trachea, bronchus, and lung (APC, –2.635).
Increased testicular cancer rates (APC, 1.246) could be related to greater prenatal exposure to estrogen and progesterone or through dairy consumption; increasing survival of premature infants; and greater exposure to cannabis, among other possibilities, the investigators say.
Increases in colorectal cancer might be related to fewer vegetables and more fat and processed meat in the diet; lack of exercise; and increasing obesity. Human papillomavirus infection has also been implicated.
Higher rates of melanoma could be related to tanning bed use.
Declines in some cancers could be related to greater use of oral contraceptives; laws reducing exposure to benzene and other chemicals; and fewer people smoking.
Although kidney carcinoma has increased at the greatest rate, it’s uncommon. Colorectal and thyroid carcinoma, melanoma, non-Hodgkin lymphoma, and germ cell and trophoblastic neoplasms of the gonads contribute more to the overall increase in cancers among AYAs, the investigators note.
Almost 80% of the patients were White; 10.3% were Black.
The study was funded by the National Center for Advancing Translational Sciences. The investigators have disclosed no relevant financial relationships.
This article first appeared on Medscape.com.
Rates of cancer increased by 30% from 1973 to 2015 in adolescents and young adults (AYAs) aged 15–39 years in the United States, according to a review of almost a half million cases in the National Institutes of Health’s Surveillance, Epidemiology, and End Results database.
There was an annual increase of 0.537 new cases per 100,000 people, from 57.2 cases per 100,000 in 1973 to 74.2 in 2015.
Kidney carcinoma led with the highest rate increase. There were also marked increases in thyroid and colorectal carcinoma, germ cell and trophoblastic neoplasms, and melanoma, among others.
The report was published online December 1 in JAMA Network Open.
“Clinicians should be on the lookout for these cancers in their adolescent and young adult patients,” said senior investigator Nicholas Zaorsky, MD, an assistant professor of radiation oncology and public health sciences at the Penn State Cancer Institute, Hershey, Pennsylvania.
“Now that there is a better understanding of the types of cancer that are prevalent and rising in this age group, prevention, screening, diagnosis and treatment protocols specifically targeted to this population should be developed,” he said in a press release.
The reasons for the increases are unclear, but environmental and dietary factors, increasing obesity, and changing screening practices are likely in play, the authors comment. In addition, “cancer screening and overdiagnosis are thought to account for much of the increasing rates of thyroid and kidney carcinoma, among others,” they add.
The American Cancer Society (ACS) recently found similar increases in thyroid, kidney, and colorectal cancer among AYAs, as well as an increase in uterine cancer.
It’s important to note, however, that “this phenomenon is largely driven by trends for thyroid cancer, which is thought to be a result of overdiagnosis,” said ACS surveillance researcher Kimberly Miller, MPH, when asked to comment on the new study.
“As such, it is extremely important to also consider trends in cancer mortality rates among this age group, which are declining overall but are increasing for colorectal and uterine cancers. The fact that both incidence and mortality rates are increasing for these two cancers suggests a true increase in disease burden and certainly requires further attention and research,” she said.
Historically, management of cancer in AYAs has fallen somewhere between pediatric and adult oncology, neither of which capture the distinct biological, social, and economic needs of AYAs. Research has also focused on childhood and adult cancers, leaving cancer in AYAs inadequately studied.
The new findings are “valuable to guide more targeted research and interventions specifically to AYAs,” Zaorsky and colleagues say in their report.
Among female patients ― 59.1% of the study population ― incidence increased for 15 cancers, including kidney carcinoma (annual percent change [APC], 3.632), thyroid carcinoma (APC, 3.456), and myeloma, mast cell, and miscellaneous lymphoreticular neoplasms not otherwise specified (APC, 2.805). Rates of five cancers declined, led by astrocytoma not otherwise specified (APC, –3.369) and carcinoma of the gonads (APC, –1.743).
Among male patients, incidence increased for 14 cancers, including kidney carcinoma (APC, 3.572), unspecified soft tissue sarcoma (APC 2.543), and thyroid carcinoma (APC, 2.273). Incidence fell for seven, led by astrocytoma not otherwise specified (APC, –3.759) and carcinoma of the trachea, bronchus, and lung (APC, –2.635).
Increased testicular cancer rates (APC, 1.246) could be related to greater prenatal exposure to estrogen and progesterone or through dairy consumption; increasing survival of premature infants; and greater exposure to cannabis, among other possibilities, the investigators say.
Increases in colorectal cancer might be related to fewer vegetables and more fat and processed meat in the diet; lack of exercise; and increasing obesity. Human papillomavirus infection has also been implicated.
Higher rates of melanoma could be related to tanning bed use.
Declines in some cancers could be related to greater use of oral contraceptives; laws reducing exposure to benzene and other chemicals; and fewer people smoking.
Although kidney carcinoma has increased at the greatest rate, it’s uncommon. Colorectal and thyroid carcinoma, melanoma, non-Hodgkin lymphoma, and germ cell and trophoblastic neoplasms of the gonads contribute more to the overall increase in cancers among AYAs, the investigators note.
Almost 80% of the patients were White; 10.3% were Black.
The study was funded by the National Center for Advancing Translational Sciences. The investigators have disclosed no relevant financial relationships.
This article first appeared on Medscape.com.
Daily sunscreen use will prevent more melanoma deaths than early detection
The dramatic advances in targeted therapies for late-stage melanoma capture the headlines, but a recent Australian study quietly concluded that according to Laura Korb Ferris, MD, PhD, a dermatologist and director of clinical trials in the department of dermatology at the University of Pittsburgh.
“I think it’s really important that we recognize the importance of preventing skin cancer, and not just early detection, not just treatment of late disease,” Dr. Ferris said at a virtual forum on cutaneous malignancies jointly presented by Postgraduate Institute for Medicine and Global Academy for Medical Education.
She highlighted the Australian cost-effectiveness analysis, which used Markov modeling of data from two published population-based, randomized controlled trials carried out in Queensland, Australia.
The cost-effectiveness study compared the estimated long-term impact of three different approaches to control of melanoma: a primary prevention strategy, which basically consisted of promoting daily sunscreen use and other forms of sun protection; early detection through annual whole-body skin examinations by physicians starting at age 50; and no intervention. The analysis provided estimates of the number of cases of melanoma, deaths caused by melanoma, nonmelanoma skin cancers, and quality of life outcomes over the course of 30 years starting in 50-year-old men and women.
Primary prevention through sun protection was the clear winner, as shown by the results:
- A 44% reduction in the incidence of melanoma, compared with early detection via annual physician skin examinations.
- A 39% reduction in projected melanoma deaths compared with early detection, which in turn achieved only a 2% reduction when compared with no intervention.
- 27% fewer keratinocyte cancers excised than with annual skin examinations.
- A 21.7% reduction in societal costs, compared with an early-detection program.
Daily sunscreen use for primary prevention was also associated with a modest 0.1% increase in quality-adjusted life-years. “Prevention is low cost, low risk, and effective,” Dr. Ferris observed.
The investigators noted that, while residents of the Australian state of Queensland are mainly fair-skinned and confront high UV radiation levels throughout the year, somewhat limiting the generalizability of the study findings, the relationships between the costs of interventional strategies and their outcomes should be proportional in other countries.
True enough, but a strategy of annual skin examinations starting at age 50 years as modeled in the Australian study is not the most productive way to conduct a melanoma early-detection program, Dr. Ferris said. She noted that data from the National Cancer Institute’s Surveillance, Epidemiology, and End Results Program show that the median age at diagnosis of melanoma in the United States is 65 years, while the median age at death caused by the malignancy is 71 years. That information is helpful in formulating strategies to improve early detection through more focused, higher-yield screening.
Case in point: European investigators have estimated that, by screening everyone age 50 years and older, 475 people need to be screened and an average of 19.6 lesions must be biopsied in order to detect one melanoma. But by reserving screening for those age 50 years and up who have any one of three risk factors – a personal history of melanoma, atypical nevi, or at least 40 common nevi – those numbers drop dramatically: 98 people need to be screened and 13.5 lesions biopsied to detect one melanoma. And by further narrowing the screened population to those age 65 years or older with any of the three risk factors, 63 seniors would need to be screened and 9.2 lesions excised to find one melanoma.
Total-body skin examinations are time-consuming for dermatologists. In a recent U.S. study, investigators determined that the additional face-to-face time required per skin cancer detected by doing a total-body skin exam in adults who present to a dermatologist for another reason is 4.5 hours. And that’s just the time involved in detecting any type of skin cancer.
“To get that number for melanoma, multiply by 15 to 20,” Dr. Ferris said.
The investigators also determined that, for each decade of advancing age and increment in lighter skin phototype, the number-needed-to-examine in order to identify one skin cancer of any type decreased.
“By focusing on patients who are older and have fair skin types we can get that time down to about 1 hour,” commented Dr. Ferris, who penned an editorial perspective on the study.
While many dermatologists recommend that people with a high common nevus count undergo frequent screening for melanoma because they are at particularly high risk for invasive disease, a couple of recent studies challenge that notion, she pointed out. One was a retrospective study of 326 consecutive new melanoma patients which found that patients with a higher nevus count had thinner melanomas and a greater likelihood of in situ melanoma. Patients who presented with invasive melanoma had a mean total nevus count of 31.5 lesions, while those with in situ melanoma averaged 57.2 nevi. Each additional nevus was associated with a 4% reduction in the likelihood of invasive melanoma, independent of age and sex.
The other study included 566 newly diagnosed melanoma patients in two U.S. centers. Among the 56% of patients who were younger than 60 years, those who had more than 50 total nevi were 68% less likely to have a thick melanoma in a logistic regression analysis that controlled for demographic factors, as well as anatomic location of the melanoma, histologic subtype, and skin cancer screening frequency. In contrast, younger patients with more than 5 atypical nevi were 2.43-fold more likely to have thicker melanomas than were those with no such lesions. The lesson, according to the investigators, is that total nevus count isn’t a reliable determinant of a patient’s risk status or the need for skin examinations.
Dr. Ferris reported no financial conflicts of interest regarding her presentation.
Global Academy for Medical Education and this news organization are owned by the same company.
The dramatic advances in targeted therapies for late-stage melanoma capture the headlines, but a recent Australian study quietly concluded that according to Laura Korb Ferris, MD, PhD, a dermatologist and director of clinical trials in the department of dermatology at the University of Pittsburgh.
“I think it’s really important that we recognize the importance of preventing skin cancer, and not just early detection, not just treatment of late disease,” Dr. Ferris said at a virtual forum on cutaneous malignancies jointly presented by Postgraduate Institute for Medicine and Global Academy for Medical Education.
She highlighted the Australian cost-effectiveness analysis, which used Markov modeling of data from two published population-based, randomized controlled trials carried out in Queensland, Australia.
The cost-effectiveness study compared the estimated long-term impact of three different approaches to control of melanoma: a primary prevention strategy, which basically consisted of promoting daily sunscreen use and other forms of sun protection; early detection through annual whole-body skin examinations by physicians starting at age 50; and no intervention. The analysis provided estimates of the number of cases of melanoma, deaths caused by melanoma, nonmelanoma skin cancers, and quality of life outcomes over the course of 30 years starting in 50-year-old men and women.
Primary prevention through sun protection was the clear winner, as shown by the results:
- A 44% reduction in the incidence of melanoma, compared with early detection via annual physician skin examinations.
- A 39% reduction in projected melanoma deaths compared with early detection, which in turn achieved only a 2% reduction when compared with no intervention.
- 27% fewer keratinocyte cancers excised than with annual skin examinations.
- A 21.7% reduction in societal costs, compared with an early-detection program.
Daily sunscreen use for primary prevention was also associated with a modest 0.1% increase in quality-adjusted life-years. “Prevention is low cost, low risk, and effective,” Dr. Ferris observed.
The investigators noted that, while residents of the Australian state of Queensland are mainly fair-skinned and confront high UV radiation levels throughout the year, somewhat limiting the generalizability of the study findings, the relationships between the costs of interventional strategies and their outcomes should be proportional in other countries.
True enough, but a strategy of annual skin examinations starting at age 50 years as modeled in the Australian study is not the most productive way to conduct a melanoma early-detection program, Dr. Ferris said. She noted that data from the National Cancer Institute’s Surveillance, Epidemiology, and End Results Program show that the median age at diagnosis of melanoma in the United States is 65 years, while the median age at death caused by the malignancy is 71 years. That information is helpful in formulating strategies to improve early detection through more focused, higher-yield screening.
Case in point: European investigators have estimated that, by screening everyone age 50 years and older, 475 people need to be screened and an average of 19.6 lesions must be biopsied in order to detect one melanoma. But by reserving screening for those age 50 years and up who have any one of three risk factors – a personal history of melanoma, atypical nevi, or at least 40 common nevi – those numbers drop dramatically: 98 people need to be screened and 13.5 lesions biopsied to detect one melanoma. And by further narrowing the screened population to those age 65 years or older with any of the three risk factors, 63 seniors would need to be screened and 9.2 lesions excised to find one melanoma.
Total-body skin examinations are time-consuming for dermatologists. In a recent U.S. study, investigators determined that the additional face-to-face time required per skin cancer detected by doing a total-body skin exam in adults who present to a dermatologist for another reason is 4.5 hours. And that’s just the time involved in detecting any type of skin cancer.
“To get that number for melanoma, multiply by 15 to 20,” Dr. Ferris said.
The investigators also determined that, for each decade of advancing age and increment in lighter skin phototype, the number-needed-to-examine in order to identify one skin cancer of any type decreased.
“By focusing on patients who are older and have fair skin types we can get that time down to about 1 hour,” commented Dr. Ferris, who penned an editorial perspective on the study.
While many dermatologists recommend that people with a high common nevus count undergo frequent screening for melanoma because they are at particularly high risk for invasive disease, a couple of recent studies challenge that notion, she pointed out. One was a retrospective study of 326 consecutive new melanoma patients which found that patients with a higher nevus count had thinner melanomas and a greater likelihood of in situ melanoma. Patients who presented with invasive melanoma had a mean total nevus count of 31.5 lesions, while those with in situ melanoma averaged 57.2 nevi. Each additional nevus was associated with a 4% reduction in the likelihood of invasive melanoma, independent of age and sex.
The other study included 566 newly diagnosed melanoma patients in two U.S. centers. Among the 56% of patients who were younger than 60 years, those who had more than 50 total nevi were 68% less likely to have a thick melanoma in a logistic regression analysis that controlled for demographic factors, as well as anatomic location of the melanoma, histologic subtype, and skin cancer screening frequency. In contrast, younger patients with more than 5 atypical nevi were 2.43-fold more likely to have thicker melanomas than were those with no such lesions. The lesson, according to the investigators, is that total nevus count isn’t a reliable determinant of a patient’s risk status or the need for skin examinations.
Dr. Ferris reported no financial conflicts of interest regarding her presentation.
Global Academy for Medical Education and this news organization are owned by the same company.
The dramatic advances in targeted therapies for late-stage melanoma capture the headlines, but a recent Australian study quietly concluded that according to Laura Korb Ferris, MD, PhD, a dermatologist and director of clinical trials in the department of dermatology at the University of Pittsburgh.
“I think it’s really important that we recognize the importance of preventing skin cancer, and not just early detection, not just treatment of late disease,” Dr. Ferris said at a virtual forum on cutaneous malignancies jointly presented by Postgraduate Institute for Medicine and Global Academy for Medical Education.
She highlighted the Australian cost-effectiveness analysis, which used Markov modeling of data from two published population-based, randomized controlled trials carried out in Queensland, Australia.
The cost-effectiveness study compared the estimated long-term impact of three different approaches to control of melanoma: a primary prevention strategy, which basically consisted of promoting daily sunscreen use and other forms of sun protection; early detection through annual whole-body skin examinations by physicians starting at age 50; and no intervention. The analysis provided estimates of the number of cases of melanoma, deaths caused by melanoma, nonmelanoma skin cancers, and quality of life outcomes over the course of 30 years starting in 50-year-old men and women.
Primary prevention through sun protection was the clear winner, as shown by the results:
- A 44% reduction in the incidence of melanoma, compared with early detection via annual physician skin examinations.
- A 39% reduction in projected melanoma deaths compared with early detection, which in turn achieved only a 2% reduction when compared with no intervention.
- 27% fewer keratinocyte cancers excised than with annual skin examinations.
- A 21.7% reduction in societal costs, compared with an early-detection program.
Daily sunscreen use for primary prevention was also associated with a modest 0.1% increase in quality-adjusted life-years. “Prevention is low cost, low risk, and effective,” Dr. Ferris observed.
The investigators noted that, while residents of the Australian state of Queensland are mainly fair-skinned and confront high UV radiation levels throughout the year, somewhat limiting the generalizability of the study findings, the relationships between the costs of interventional strategies and their outcomes should be proportional in other countries.
True enough, but a strategy of annual skin examinations starting at age 50 years as modeled in the Australian study is not the most productive way to conduct a melanoma early-detection program, Dr. Ferris said. She noted that data from the National Cancer Institute’s Surveillance, Epidemiology, and End Results Program show that the median age at diagnosis of melanoma in the United States is 65 years, while the median age at death caused by the malignancy is 71 years. That information is helpful in formulating strategies to improve early detection through more focused, higher-yield screening.
Case in point: European investigators have estimated that, by screening everyone age 50 years and older, 475 people need to be screened and an average of 19.6 lesions must be biopsied in order to detect one melanoma. But by reserving screening for those age 50 years and up who have any one of three risk factors – a personal history of melanoma, atypical nevi, or at least 40 common nevi – those numbers drop dramatically: 98 people need to be screened and 13.5 lesions biopsied to detect one melanoma. And by further narrowing the screened population to those age 65 years or older with any of the three risk factors, 63 seniors would need to be screened and 9.2 lesions excised to find one melanoma.
Total-body skin examinations are time-consuming for dermatologists. In a recent U.S. study, investigators determined that the additional face-to-face time required per skin cancer detected by doing a total-body skin exam in adults who present to a dermatologist for another reason is 4.5 hours. And that’s just the time involved in detecting any type of skin cancer.
“To get that number for melanoma, multiply by 15 to 20,” Dr. Ferris said.
The investigators also determined that, for each decade of advancing age and increment in lighter skin phototype, the number-needed-to-examine in order to identify one skin cancer of any type decreased.
“By focusing on patients who are older and have fair skin types we can get that time down to about 1 hour,” commented Dr. Ferris, who penned an editorial perspective on the study.
While many dermatologists recommend that people with a high common nevus count undergo frequent screening for melanoma because they are at particularly high risk for invasive disease, a couple of recent studies challenge that notion, she pointed out. One was a retrospective study of 326 consecutive new melanoma patients which found that patients with a higher nevus count had thinner melanomas and a greater likelihood of in situ melanoma. Patients who presented with invasive melanoma had a mean total nevus count of 31.5 lesions, while those with in situ melanoma averaged 57.2 nevi. Each additional nevus was associated with a 4% reduction in the likelihood of invasive melanoma, independent of age and sex.
The other study included 566 newly diagnosed melanoma patients in two U.S. centers. Among the 56% of patients who were younger than 60 years, those who had more than 50 total nevi were 68% less likely to have a thick melanoma in a logistic regression analysis that controlled for demographic factors, as well as anatomic location of the melanoma, histologic subtype, and skin cancer screening frequency. In contrast, younger patients with more than 5 atypical nevi were 2.43-fold more likely to have thicker melanomas than were those with no such lesions. The lesson, according to the investigators, is that total nevus count isn’t a reliable determinant of a patient’s risk status or the need for skin examinations.
Dr. Ferris reported no financial conflicts of interest regarding her presentation.
Global Academy for Medical Education and this news organization are owned by the same company.
FROM THE CUTANEOUS MALIGNANCIES FORUM
Multiple Glomangiomas in a Patient With a History of Metastatic Melanoma
To the Editor:
A 32-year-old man presented to the dermatology clinic with multiple asymptomatic blue lesions on the arms and upper torso of 15 years’ duration. His medical history was notable for a recent diagnosis of malignant melanoma following excision of a mole on the upper back 4 months prior. He reported that the mole had been present since childhood, but his sister noticed that it increased in size and changed in color over the course of a year. Physical examination showed multiple blue subcutaneous nodules on the bilateral arms and lower back. The nodules were soft and nontender, and some had telangiectasia on the overlying skin.
Given the atypical distribution of nodules and the patient’s recent history of melanoma, there was concern for cutaneous metastases. A punch biopsy of one of the nodules on the right upper arm was performed. Microscopic examination of the biopsy specimen revealed a proliferation of multiple cavernous vessels surrounded by several rows of monotonous round cells with moderate eosinophilic cytoplasm and monomorphic nuclei, which was consistent with a diagnosis of glomangioma (Figure 1). Immunohistochemical analysis showed diffuse positive staining for smooth muscle actin (Figure 2); CD34 immunostain was positive in endothelial cells and negative in tumor cells (Figure 3).
Two weeks after the first punch biopsy, the patient returned for follow-up. He noted a new soft, painless, nontender mass in the left axillary region. Positron emission tomography–computed tomography and a lymphoscintigram were performed to assess for lymphadenopathy, but they were not contributory. Subsequently, the patient underwent bilateral axillary sentinel lymph node dissection, which revealed the presence of metastatic melanoma in one lymph node in the left axilla. No metastatic disease was identified in the right axillary sentinel lymph nodes. A second skin biopsy was performed on another blue nodule to confirm the diagnosis and to exclude the possibility of sampling error. The histopathologic examination again revealed glomangioma, which established the diagnosis of multiple glomangiomas.
Glomus tumors arise from modified smooth muscle cells located in glomus bodies. The glomus body is a component of the dermis involved in regulation of body temperature that is composed of an afferent arteriole and an efferent venule. The arterial end of this apparatus, known as the Sucquet-Hoyer canal, is surrounded by glomus cells that have a contractile capability similar to smooth muscle cells. Glomus tumors usually present as painful masses on the fingers with a typical subungual location and almost always are solitary.1 Glomangiomas, sometimes known as glomuvenous malformations, tend to be larger and usually are painless. They mostly are found on the trunk and extremities and can appear in groups.2,3 Histopathologically, glomus tumors are circumscribed lesions that show a predominance of glomus cells surrounding inconspicuous blood vessels. Glomangiomas are less well-circumscribed and show a more vascular architecture with prominent dilated vessels and a smaller number of glomus cells.4
We present a case of a patient with multiple glomangiomas. There are few reports of multiple glomangiomas in the literature. This case is particularly interesting in that our patient had a history of malignant melanoma, and there was a concern for skin metastases. Despite the patient’s personal history of blue lesions that predated the diagnosis of melanoma for many years, we could not exclude the possibility of cutaneous metastases without performing biopsies.
Tumors of glomus cell origin usually are benign. It has been suggested to replace the term glomangioma with glomuvenous malformations to emphasize the hamartomatous nature of these lesions.5 Glomuvenous malformations, or glomangiomas, can occur sporadically or can be inherited as a familial disorder. Inheritable glomangioma has been linked to the chromosome 1p21-22 locus and mutations in the glomulin gene, GLMN, with variable penetrance.6 Our patient did not report a family history of such lesions.
Glomangiomas typically are solitary but rarely can present as multiple lesions in fewer than 10% of cases.7 Multiple glomangiomas are classified into 3 subtypes: localized, disseminated, and congenital plaque type. Localized multiple glomangiomas present as blue nodules confined to 1 anatomic location such as the hand or arm. Disseminated glomangiomas are more widely distributed and involve more than 1 anatomic location.8 Plaque-type glomangiomas consist of numerous confluent lesions occurring either as solitary or multiple plaques.2 Clinically, glomangiomas manifest as painless to mildly painful cutaneous nodules. Compared to venous malformations, glomangiomas are less compressible under external pressure.
Histopathologically, glomangiomas appear as nonencapsulated tumors with large, irregular, prominent vessels lined by glomus cells. Glomus cells may be so sparse that the distinction from venous malformations and hemangiomas becomes difficult. Immunohistochemistry can play an important role in diagnosis. As modified smooth muscle cells, glomus cells stain positive with a-smooth muscle actin, while CD34 highlights the vascular endothelium.1The clinical differential diagnosis of multiple blue or violaceous subcutaneous nodules includes blue rubber bleb nevus syndrome, Maffucci syndrome, glomus tumor, pyogenic granuloma, hemangioma, spiradenoma, angiolipoma, leiomyoma, or hemangiopericytoma.9-12
Different treatment modalities are available for solitary glomangiomas, including surgical excision, sclerotherapy, and laser application. Treatment of multiple glomangiomas may not be feasible, and excision of isolated symptomatic lesions may be the only option; however, it is crucial to reach the correct diagnosis in these patients to avoid improper treatments and interventions.
- Patterson JW. Weedon’s Skin Pathology. 4th ed. Edinburgh, Scotland: Churchill Livingstone Elsevier; 2016.
- Mallory SB, Enjolras O, Boon LM, et al. Congenital plaque-type glomuvenous malformations presenting in childhood. Arch Dermatol. 2006;142:892-896.
- Boon L, Mulliken JB, Enjolras O, et al. Glomuvenous malformation (glomangioma) and venous malformation distinct clinicopathologic and genetic entities. Arch Dermatol. 2004;140:971-976.
- Gombos Z, Zhang PJ. Glomus tumor. Arch Pathol Lab Med. 2008;132:1448-1452.
- Brouillard P, Boon LM, Mulliken JB, et al. Mutations in a novel factor, glomulin, are responsible for glomuvenous malformations (“glomangiomas”). Am J Hum Genet. 2002;70:866-874.
- Brouillard P, Ghassibé M, Penington A, et al. Four common glomulin mutations cause two thirds of glomuvenous malformations (“familial glomangiomas”): evidence for a founder effect. J Med Genet. 2005;42:E13.
- Goodman TF, Abele DC. Multiple glomus tumors. a clinical and electron microscopic study. Arch Dermatol. 1971;103:11-23.
- Miyamoto H, Wada H. Localized multiple glomangiomas on the foot. J Dermatol. 2009;36:604-607.
- Borovaya A, Kunte C, Flaig MJ, et al. Disseminated cutaneousglomangiomas in an adolescent boy. Acta Derm Venereol. 2012;92:324-325.
- Leger M, Patel U, Mandal R, et al. Glomangioma. Dermatol Online J. 2010;16:11.
- Ertem D, Acar Y, Kotiloglu E, et al. Blue rubber bleb nevus syndrome. Pediatrics. 2001;107:418-420.
- Faik A, Allali F, El Hassani S, et al. Maffucci’s syndrome: a case report. Clin Rheumatol. 2006;25:88-91.
To the Editor:
A 32-year-old man presented to the dermatology clinic with multiple asymptomatic blue lesions on the arms and upper torso of 15 years’ duration. His medical history was notable for a recent diagnosis of malignant melanoma following excision of a mole on the upper back 4 months prior. He reported that the mole had been present since childhood, but his sister noticed that it increased in size and changed in color over the course of a year. Physical examination showed multiple blue subcutaneous nodules on the bilateral arms and lower back. The nodules were soft and nontender, and some had telangiectasia on the overlying skin.
Given the atypical distribution of nodules and the patient’s recent history of melanoma, there was concern for cutaneous metastases. A punch biopsy of one of the nodules on the right upper arm was performed. Microscopic examination of the biopsy specimen revealed a proliferation of multiple cavernous vessels surrounded by several rows of monotonous round cells with moderate eosinophilic cytoplasm and monomorphic nuclei, which was consistent with a diagnosis of glomangioma (Figure 1). Immunohistochemical analysis showed diffuse positive staining for smooth muscle actin (Figure 2); CD34 immunostain was positive in endothelial cells and negative in tumor cells (Figure 3).
Two weeks after the first punch biopsy, the patient returned for follow-up. He noted a new soft, painless, nontender mass in the left axillary region. Positron emission tomography–computed tomography and a lymphoscintigram were performed to assess for lymphadenopathy, but they were not contributory. Subsequently, the patient underwent bilateral axillary sentinel lymph node dissection, which revealed the presence of metastatic melanoma in one lymph node in the left axilla. No metastatic disease was identified in the right axillary sentinel lymph nodes. A second skin biopsy was performed on another blue nodule to confirm the diagnosis and to exclude the possibility of sampling error. The histopathologic examination again revealed glomangioma, which established the diagnosis of multiple glomangiomas.
Glomus tumors arise from modified smooth muscle cells located in glomus bodies. The glomus body is a component of the dermis involved in regulation of body temperature that is composed of an afferent arteriole and an efferent venule. The arterial end of this apparatus, known as the Sucquet-Hoyer canal, is surrounded by glomus cells that have a contractile capability similar to smooth muscle cells. Glomus tumors usually present as painful masses on the fingers with a typical subungual location and almost always are solitary.1 Glomangiomas, sometimes known as glomuvenous malformations, tend to be larger and usually are painless. They mostly are found on the trunk and extremities and can appear in groups.2,3 Histopathologically, glomus tumors are circumscribed lesions that show a predominance of glomus cells surrounding inconspicuous blood vessels. Glomangiomas are less well-circumscribed and show a more vascular architecture with prominent dilated vessels and a smaller number of glomus cells.4
We present a case of a patient with multiple glomangiomas. There are few reports of multiple glomangiomas in the literature. This case is particularly interesting in that our patient had a history of malignant melanoma, and there was a concern for skin metastases. Despite the patient’s personal history of blue lesions that predated the diagnosis of melanoma for many years, we could not exclude the possibility of cutaneous metastases without performing biopsies.
Tumors of glomus cell origin usually are benign. It has been suggested to replace the term glomangioma with glomuvenous malformations to emphasize the hamartomatous nature of these lesions.5 Glomuvenous malformations, or glomangiomas, can occur sporadically or can be inherited as a familial disorder. Inheritable glomangioma has been linked to the chromosome 1p21-22 locus and mutations in the glomulin gene, GLMN, with variable penetrance.6 Our patient did not report a family history of such lesions.
Glomangiomas typically are solitary but rarely can present as multiple lesions in fewer than 10% of cases.7 Multiple glomangiomas are classified into 3 subtypes: localized, disseminated, and congenital plaque type. Localized multiple glomangiomas present as blue nodules confined to 1 anatomic location such as the hand or arm. Disseminated glomangiomas are more widely distributed and involve more than 1 anatomic location.8 Plaque-type glomangiomas consist of numerous confluent lesions occurring either as solitary or multiple plaques.2 Clinically, glomangiomas manifest as painless to mildly painful cutaneous nodules. Compared to venous malformations, glomangiomas are less compressible under external pressure.
Histopathologically, glomangiomas appear as nonencapsulated tumors with large, irregular, prominent vessels lined by glomus cells. Glomus cells may be so sparse that the distinction from venous malformations and hemangiomas becomes difficult. Immunohistochemistry can play an important role in diagnosis. As modified smooth muscle cells, glomus cells stain positive with a-smooth muscle actin, while CD34 highlights the vascular endothelium.1The clinical differential diagnosis of multiple blue or violaceous subcutaneous nodules includes blue rubber bleb nevus syndrome, Maffucci syndrome, glomus tumor, pyogenic granuloma, hemangioma, spiradenoma, angiolipoma, leiomyoma, or hemangiopericytoma.9-12
Different treatment modalities are available for solitary glomangiomas, including surgical excision, sclerotherapy, and laser application. Treatment of multiple glomangiomas may not be feasible, and excision of isolated symptomatic lesions may be the only option; however, it is crucial to reach the correct diagnosis in these patients to avoid improper treatments and interventions.
To the Editor:
A 32-year-old man presented to the dermatology clinic with multiple asymptomatic blue lesions on the arms and upper torso of 15 years’ duration. His medical history was notable for a recent diagnosis of malignant melanoma following excision of a mole on the upper back 4 months prior. He reported that the mole had been present since childhood, but his sister noticed that it increased in size and changed in color over the course of a year. Physical examination showed multiple blue subcutaneous nodules on the bilateral arms and lower back. The nodules were soft and nontender, and some had telangiectasia on the overlying skin.
Given the atypical distribution of nodules and the patient’s recent history of melanoma, there was concern for cutaneous metastases. A punch biopsy of one of the nodules on the right upper arm was performed. Microscopic examination of the biopsy specimen revealed a proliferation of multiple cavernous vessels surrounded by several rows of monotonous round cells with moderate eosinophilic cytoplasm and monomorphic nuclei, which was consistent with a diagnosis of glomangioma (Figure 1). Immunohistochemical analysis showed diffuse positive staining for smooth muscle actin (Figure 2); CD34 immunostain was positive in endothelial cells and negative in tumor cells (Figure 3).
Two weeks after the first punch biopsy, the patient returned for follow-up. He noted a new soft, painless, nontender mass in the left axillary region. Positron emission tomography–computed tomography and a lymphoscintigram were performed to assess for lymphadenopathy, but they were not contributory. Subsequently, the patient underwent bilateral axillary sentinel lymph node dissection, which revealed the presence of metastatic melanoma in one lymph node in the left axilla. No metastatic disease was identified in the right axillary sentinel lymph nodes. A second skin biopsy was performed on another blue nodule to confirm the diagnosis and to exclude the possibility of sampling error. The histopathologic examination again revealed glomangioma, which established the diagnosis of multiple glomangiomas.
Glomus tumors arise from modified smooth muscle cells located in glomus bodies. The glomus body is a component of the dermis involved in regulation of body temperature that is composed of an afferent arteriole and an efferent venule. The arterial end of this apparatus, known as the Sucquet-Hoyer canal, is surrounded by glomus cells that have a contractile capability similar to smooth muscle cells. Glomus tumors usually present as painful masses on the fingers with a typical subungual location and almost always are solitary.1 Glomangiomas, sometimes known as glomuvenous malformations, tend to be larger and usually are painless. They mostly are found on the trunk and extremities and can appear in groups.2,3 Histopathologically, glomus tumors are circumscribed lesions that show a predominance of glomus cells surrounding inconspicuous blood vessels. Glomangiomas are less well-circumscribed and show a more vascular architecture with prominent dilated vessels and a smaller number of glomus cells.4
We present a case of a patient with multiple glomangiomas. There are few reports of multiple glomangiomas in the literature. This case is particularly interesting in that our patient had a history of malignant melanoma, and there was a concern for skin metastases. Despite the patient’s personal history of blue lesions that predated the diagnosis of melanoma for many years, we could not exclude the possibility of cutaneous metastases without performing biopsies.
Tumors of glomus cell origin usually are benign. It has been suggested to replace the term glomangioma with glomuvenous malformations to emphasize the hamartomatous nature of these lesions.5 Glomuvenous malformations, or glomangiomas, can occur sporadically or can be inherited as a familial disorder. Inheritable glomangioma has been linked to the chromosome 1p21-22 locus and mutations in the glomulin gene, GLMN, with variable penetrance.6 Our patient did not report a family history of such lesions.
Glomangiomas typically are solitary but rarely can present as multiple lesions in fewer than 10% of cases.7 Multiple glomangiomas are classified into 3 subtypes: localized, disseminated, and congenital plaque type. Localized multiple glomangiomas present as blue nodules confined to 1 anatomic location such as the hand or arm. Disseminated glomangiomas are more widely distributed and involve more than 1 anatomic location.8 Plaque-type glomangiomas consist of numerous confluent lesions occurring either as solitary or multiple plaques.2 Clinically, glomangiomas manifest as painless to mildly painful cutaneous nodules. Compared to venous malformations, glomangiomas are less compressible under external pressure.
Histopathologically, glomangiomas appear as nonencapsulated tumors with large, irregular, prominent vessels lined by glomus cells. Glomus cells may be so sparse that the distinction from venous malformations and hemangiomas becomes difficult. Immunohistochemistry can play an important role in diagnosis. As modified smooth muscle cells, glomus cells stain positive with a-smooth muscle actin, while CD34 highlights the vascular endothelium.1The clinical differential diagnosis of multiple blue or violaceous subcutaneous nodules includes blue rubber bleb nevus syndrome, Maffucci syndrome, glomus tumor, pyogenic granuloma, hemangioma, spiradenoma, angiolipoma, leiomyoma, or hemangiopericytoma.9-12
Different treatment modalities are available for solitary glomangiomas, including surgical excision, sclerotherapy, and laser application. Treatment of multiple glomangiomas may not be feasible, and excision of isolated symptomatic lesions may be the only option; however, it is crucial to reach the correct diagnosis in these patients to avoid improper treatments and interventions.
- Patterson JW. Weedon’s Skin Pathology. 4th ed. Edinburgh, Scotland: Churchill Livingstone Elsevier; 2016.
- Mallory SB, Enjolras O, Boon LM, et al. Congenital plaque-type glomuvenous malformations presenting in childhood. Arch Dermatol. 2006;142:892-896.
- Boon L, Mulliken JB, Enjolras O, et al. Glomuvenous malformation (glomangioma) and venous malformation distinct clinicopathologic and genetic entities. Arch Dermatol. 2004;140:971-976.
- Gombos Z, Zhang PJ. Glomus tumor. Arch Pathol Lab Med. 2008;132:1448-1452.
- Brouillard P, Boon LM, Mulliken JB, et al. Mutations in a novel factor, glomulin, are responsible for glomuvenous malformations (“glomangiomas”). Am J Hum Genet. 2002;70:866-874.
- Brouillard P, Ghassibé M, Penington A, et al. Four common glomulin mutations cause two thirds of glomuvenous malformations (“familial glomangiomas”): evidence for a founder effect. J Med Genet. 2005;42:E13.
- Goodman TF, Abele DC. Multiple glomus tumors. a clinical and electron microscopic study. Arch Dermatol. 1971;103:11-23.
- Miyamoto H, Wada H. Localized multiple glomangiomas on the foot. J Dermatol. 2009;36:604-607.
- Borovaya A, Kunte C, Flaig MJ, et al. Disseminated cutaneousglomangiomas in an adolescent boy. Acta Derm Venereol. 2012;92:324-325.
- Leger M, Patel U, Mandal R, et al. Glomangioma. Dermatol Online J. 2010;16:11.
- Ertem D, Acar Y, Kotiloglu E, et al. Blue rubber bleb nevus syndrome. Pediatrics. 2001;107:418-420.
- Faik A, Allali F, El Hassani S, et al. Maffucci’s syndrome: a case report. Clin Rheumatol. 2006;25:88-91.
- Patterson JW. Weedon’s Skin Pathology. 4th ed. Edinburgh, Scotland: Churchill Livingstone Elsevier; 2016.
- Mallory SB, Enjolras O, Boon LM, et al. Congenital plaque-type glomuvenous malformations presenting in childhood. Arch Dermatol. 2006;142:892-896.
- Boon L, Mulliken JB, Enjolras O, et al. Glomuvenous malformation (glomangioma) and venous malformation distinct clinicopathologic and genetic entities. Arch Dermatol. 2004;140:971-976.
- Gombos Z, Zhang PJ. Glomus tumor. Arch Pathol Lab Med. 2008;132:1448-1452.
- Brouillard P, Boon LM, Mulliken JB, et al. Mutations in a novel factor, glomulin, are responsible for glomuvenous malformations (“glomangiomas”). Am J Hum Genet. 2002;70:866-874.
- Brouillard P, Ghassibé M, Penington A, et al. Four common glomulin mutations cause two thirds of glomuvenous malformations (“familial glomangiomas”): evidence for a founder effect. J Med Genet. 2005;42:E13.
- Goodman TF, Abele DC. Multiple glomus tumors. a clinical and electron microscopic study. Arch Dermatol. 1971;103:11-23.
- Miyamoto H, Wada H. Localized multiple glomangiomas on the foot. J Dermatol. 2009;36:604-607.
- Borovaya A, Kunte C, Flaig MJ, et al. Disseminated cutaneousglomangiomas in an adolescent boy. Acta Derm Venereol. 2012;92:324-325.
- Leger M, Patel U, Mandal R, et al. Glomangioma. Dermatol Online J. 2010;16:11.
- Ertem D, Acar Y, Kotiloglu E, et al. Blue rubber bleb nevus syndrome. Pediatrics. 2001;107:418-420.
- Faik A, Allali F, El Hassani S, et al. Maffucci’s syndrome: a case report. Clin Rheumatol. 2006;25:88-91.
Practice Points
- The diagnosis of glomus tumor and glomangioma is easily suspected when the lesions are in the digital or subungual region.
- Multiple glomangiomas are rare and can clinically pose a diagnostic challenge to dermatologists.
- In patients with a recent history of malignancy, multiple glomangiomas may mimic cutaneous metastases. Therefore, multiple biopsies and histologic examination may be necessary.
Immune checkpoint inhibitors don’t increase COVID-19 incidence or mortality, studies suggest
Cytokine storm plays a major role in the pathogenesis of COVID-19, according to research published in The Lancet Respiratory Medicine. This has generated concern about using ICIs during the pandemic, given their immunostimulatory activity and the risk of immune-related adverse effects.
However, two retrospective studies suggest ICIs do not increase the risk of developing COVID-19 or dying from the disease.
In a study of 1,545 cancer patients prescribed ICIs and 20,418 matched controls, the incidence of COVID-19 was 1.4% with ICI therapy and 1.0% without it (odds ratio, 1.38; P = .15).
In a case-control study of 50 patients with cancer and COVID-19, 28% of patients who had received ICIs died from COVID-19, compared with 36% of patients who had not received ICIs (OR, 0.36; P = .23).
Vartan Pahalyants and Kevin Tyan, both students in Harvard University’s joint MD/MBA program in Boston, presented these studies at the meeting.
COVID-19 incidence with ICIs
Mr. Pahalyants and colleagues analyzed data from cancer patients treated in the Mass General Brigham health care system. The researchers compared 1,545 patients with at least one ICI prescription between July 1, 2019, and Feb. 29, 2020, with 20,418 matched cancer patients not prescribed ICIs. The team assessed COVID-19 incidence based on positive test results through June 19, 2020, from public health data.
The incidence of COVID-19 was low in both groups – 1.4% in the ICI group and 1.0% in the matched control group (P = .16). Among COVID-19–positive patients, the all-cause death rate was 40.9% in the ICI group and 28.6% in the control group (P = .23).
In multivariate analysis, patients prescribed ICIs did not have a significantly elevated risk for COVID-19 relative to peers not prescribed ICIs (OR, 1.38; P = .15). However, risk was significantly increased for female patients (OR, 1.74; P < .001), those living in a town or county with higher COVID-19 positivity rate (OR, 1.59; P < .001), and those with severe comorbidity (vs. mild or moderate; OR, 9.77; P = .02).
Among COVID-19–positive patients, those prescribed ICIs did not have a significantly elevated risk for all-cause mortality (OR, 1.60; P = .71), but male sex and lower income were associated with an increased risk of death.
“We did not identify an increased risk of [COVID-19] diagnosis among patients prescribed ICIs compared to the controls,” Mr. Pahalyants said. “This information may assist patients and their providers in decision-making around continuation of therapy during this protracted pandemic. However, more research needs to be conducted to determine potential behavioral and testing factors that may have affected COVID-19 diagnosis susceptibility among patients included in the study.”
COVID-19 mortality with ICIs
For their study, Mr. Tyan and colleagues identified 25 cancer patients who had received ICIs in the year before a COVID-19 diagnosis between March 20, 2020, and June 3, 2020, at the Dana-Farber Cancer Institute and Mass General Brigham network. The researchers then matched each patient with a cancer patient having a COVID-19 diagnosis who had not received ICIs during the preceding year.
Overall, 28% of patients who had received ICIs before their COVID-19 diagnosis died from COVID-19, compared with 36% of those who had not received ICIs.
In multivariate analysis, ICI therapy did not predict COVID-19 mortality (OR, 0.36; P = .23). However, the risk of death from COVID-19 increased with age (OR, 1.14; P = .01) and for patients with chronic obstructive pulmonary disease (OR, 12.26; P = .01), and risk was lower for statin users (OR, 0.08; P = .02). Findings were similar in an analysis restricted to hospitalized patients in the ICI group and their matched controls.
Two ICI-treated patients with COVID-19 had persistent immune-related adverse events (hypophysitis in both cases), and one ICI-treated patient developed a new immune-related adverse event (hypothyroidism).
At COVID-19 presentation, relative to counterparts who had not received ICIs, patients who had received ICIs had higher platelet counts (P = .017) and higher D-dimer levels (P = .037). In the context of similar levels of other biomarkers, this finding is “of unclear significance, as all deaths in the cohort were due to respiratory failure as opposed to hypercoagulability,” Mr. Tyan said.
The patients treated with ICIs were more likely to die from COVID-19 if they had elevated troponin levels (P = .01), whereas no such association was seen for those not treated with ICIs.
“We found that ICI therapy is not associated with greater risk for COVID-19 mortality. Our period of follow-up was relatively short, but we did not observe a high incidence of new or persistent immune-related adverse events among our patients taking ICIs,” Mr. Tyan said.
“While larger prospective trials are needed to evaluate long-term safety in the context of COVID-19 infection, our findings support the continuation of ICI therapy during the pandemic as it does not appear to worsen outcomes for cancer patients,” he concluded.
ICI therapy can continue, with precautions
“The question of susceptibility to COVID-19 has been unclear as ICIs do not necessarily cause immunosuppression but certainly result in modulation of a patient’s immune system,” said Deborah Doroshow, MD, PhD, assistant professor at the Tisch Cancer Institute Icahn School of Medicine at Mount Sinai, New York. She was not involved in these studies.
“The findings of the study by Pahalyants and colleagues, which used a very large sample size, appear to convincingly demonstrate that ICI receipt is not associated with an increased susceptibility to COVID-19,” Dr. Doroshow said in an interview.
However, the findings of the study by Tyan and colleagues are more “thought-provoking,” Dr. Doroshow said. She noted that a large study published in Nature Medicine showed previous ICI therapy in cancer patients with COVID-19 increased the risk for hospitalization or severe COVID-19 requiring high-flow oxygen or mechanical ventilation. The new study was much smaller and did not perform statistical comparisons for outcomes such as oxygen requirements.
“I would feel comfortable telling patients that the data suggests that ICI treatment does not increase their risk of COVID-19. However, if they were to be diagnosed with COVID-19, it is unclear whether their previous ICI treatment increases their risk for poor outcomes,” Dr. Doroshow said.
“I would feel comfortable continuing to treat patients with ICIs at this time, but because we know that patients with cancer are generally more likely to develop COVID-19 and have poor outcomes, it is critical that our patients be educated about social distancing and mask wearing to the extent that their living and working situations permit,” she added.
Mr. Pahalyants disclosed no relevant conflicts of interest, and his study did not receive any specific funding. Mr. Tyan disclosed that he is cofounder and chief science officer of Kinnos, and his study did not receive any specific funding. Dr. Doroshow disclosed no relevant conflicts of interest.
SOURCE: Pahalyants V et al. SITC 2020, Abstract 826. Tyan K et al. SITC 2020, Abstract 481.
Cytokine storm plays a major role in the pathogenesis of COVID-19, according to research published in The Lancet Respiratory Medicine. This has generated concern about using ICIs during the pandemic, given their immunostimulatory activity and the risk of immune-related adverse effects.
However, two retrospective studies suggest ICIs do not increase the risk of developing COVID-19 or dying from the disease.
In a study of 1,545 cancer patients prescribed ICIs and 20,418 matched controls, the incidence of COVID-19 was 1.4% with ICI therapy and 1.0% without it (odds ratio, 1.38; P = .15).
In a case-control study of 50 patients with cancer and COVID-19, 28% of patients who had received ICIs died from COVID-19, compared with 36% of patients who had not received ICIs (OR, 0.36; P = .23).
Vartan Pahalyants and Kevin Tyan, both students in Harvard University’s joint MD/MBA program in Boston, presented these studies at the meeting.
COVID-19 incidence with ICIs
Mr. Pahalyants and colleagues analyzed data from cancer patients treated in the Mass General Brigham health care system. The researchers compared 1,545 patients with at least one ICI prescription between July 1, 2019, and Feb. 29, 2020, with 20,418 matched cancer patients not prescribed ICIs. The team assessed COVID-19 incidence based on positive test results through June 19, 2020, from public health data.
The incidence of COVID-19 was low in both groups – 1.4% in the ICI group and 1.0% in the matched control group (P = .16). Among COVID-19–positive patients, the all-cause death rate was 40.9% in the ICI group and 28.6% in the control group (P = .23).
In multivariate analysis, patients prescribed ICIs did not have a significantly elevated risk for COVID-19 relative to peers not prescribed ICIs (OR, 1.38; P = .15). However, risk was significantly increased for female patients (OR, 1.74; P < .001), those living in a town or county with higher COVID-19 positivity rate (OR, 1.59; P < .001), and those with severe comorbidity (vs. mild or moderate; OR, 9.77; P = .02).
Among COVID-19–positive patients, those prescribed ICIs did not have a significantly elevated risk for all-cause mortality (OR, 1.60; P = .71), but male sex and lower income were associated with an increased risk of death.
“We did not identify an increased risk of [COVID-19] diagnosis among patients prescribed ICIs compared to the controls,” Mr. Pahalyants said. “This information may assist patients and their providers in decision-making around continuation of therapy during this protracted pandemic. However, more research needs to be conducted to determine potential behavioral and testing factors that may have affected COVID-19 diagnosis susceptibility among patients included in the study.”
COVID-19 mortality with ICIs
For their study, Mr. Tyan and colleagues identified 25 cancer patients who had received ICIs in the year before a COVID-19 diagnosis between March 20, 2020, and June 3, 2020, at the Dana-Farber Cancer Institute and Mass General Brigham network. The researchers then matched each patient with a cancer patient having a COVID-19 diagnosis who had not received ICIs during the preceding year.
Overall, 28% of patients who had received ICIs before their COVID-19 diagnosis died from COVID-19, compared with 36% of those who had not received ICIs.
In multivariate analysis, ICI therapy did not predict COVID-19 mortality (OR, 0.36; P = .23). However, the risk of death from COVID-19 increased with age (OR, 1.14; P = .01) and for patients with chronic obstructive pulmonary disease (OR, 12.26; P = .01), and risk was lower for statin users (OR, 0.08; P = .02). Findings were similar in an analysis restricted to hospitalized patients in the ICI group and their matched controls.
Two ICI-treated patients with COVID-19 had persistent immune-related adverse events (hypophysitis in both cases), and one ICI-treated patient developed a new immune-related adverse event (hypothyroidism).
At COVID-19 presentation, relative to counterparts who had not received ICIs, patients who had received ICIs had higher platelet counts (P = .017) and higher D-dimer levels (P = .037). In the context of similar levels of other biomarkers, this finding is “of unclear significance, as all deaths in the cohort were due to respiratory failure as opposed to hypercoagulability,” Mr. Tyan said.
The patients treated with ICIs were more likely to die from COVID-19 if they had elevated troponin levels (P = .01), whereas no such association was seen for those not treated with ICIs.
“We found that ICI therapy is not associated with greater risk for COVID-19 mortality. Our period of follow-up was relatively short, but we did not observe a high incidence of new or persistent immune-related adverse events among our patients taking ICIs,” Mr. Tyan said.
“While larger prospective trials are needed to evaluate long-term safety in the context of COVID-19 infection, our findings support the continuation of ICI therapy during the pandemic as it does not appear to worsen outcomes for cancer patients,” he concluded.
ICI therapy can continue, with precautions
“The question of susceptibility to COVID-19 has been unclear as ICIs do not necessarily cause immunosuppression but certainly result in modulation of a patient’s immune system,” said Deborah Doroshow, MD, PhD, assistant professor at the Tisch Cancer Institute Icahn School of Medicine at Mount Sinai, New York. She was not involved in these studies.
“The findings of the study by Pahalyants and colleagues, which used a very large sample size, appear to convincingly demonstrate that ICI receipt is not associated with an increased susceptibility to COVID-19,” Dr. Doroshow said in an interview.
However, the findings of the study by Tyan and colleagues are more “thought-provoking,” Dr. Doroshow said. She noted that a large study published in Nature Medicine showed previous ICI therapy in cancer patients with COVID-19 increased the risk for hospitalization or severe COVID-19 requiring high-flow oxygen or mechanical ventilation. The new study was much smaller and did not perform statistical comparisons for outcomes such as oxygen requirements.
“I would feel comfortable telling patients that the data suggests that ICI treatment does not increase their risk of COVID-19. However, if they were to be diagnosed with COVID-19, it is unclear whether their previous ICI treatment increases their risk for poor outcomes,” Dr. Doroshow said.
“I would feel comfortable continuing to treat patients with ICIs at this time, but because we know that patients with cancer are generally more likely to develop COVID-19 and have poor outcomes, it is critical that our patients be educated about social distancing and mask wearing to the extent that their living and working situations permit,” she added.
Mr. Pahalyants disclosed no relevant conflicts of interest, and his study did not receive any specific funding. Mr. Tyan disclosed that he is cofounder and chief science officer of Kinnos, and his study did not receive any specific funding. Dr. Doroshow disclosed no relevant conflicts of interest.
SOURCE: Pahalyants V et al. SITC 2020, Abstract 826. Tyan K et al. SITC 2020, Abstract 481.
Cytokine storm plays a major role in the pathogenesis of COVID-19, according to research published in The Lancet Respiratory Medicine. This has generated concern about using ICIs during the pandemic, given their immunostimulatory activity and the risk of immune-related adverse effects.
However, two retrospective studies suggest ICIs do not increase the risk of developing COVID-19 or dying from the disease.
In a study of 1,545 cancer patients prescribed ICIs and 20,418 matched controls, the incidence of COVID-19 was 1.4% with ICI therapy and 1.0% without it (odds ratio, 1.38; P = .15).
In a case-control study of 50 patients with cancer and COVID-19, 28% of patients who had received ICIs died from COVID-19, compared with 36% of patients who had not received ICIs (OR, 0.36; P = .23).
Vartan Pahalyants and Kevin Tyan, both students in Harvard University’s joint MD/MBA program in Boston, presented these studies at the meeting.
COVID-19 incidence with ICIs
Mr. Pahalyants and colleagues analyzed data from cancer patients treated in the Mass General Brigham health care system. The researchers compared 1,545 patients with at least one ICI prescription between July 1, 2019, and Feb. 29, 2020, with 20,418 matched cancer patients not prescribed ICIs. The team assessed COVID-19 incidence based on positive test results through June 19, 2020, from public health data.
The incidence of COVID-19 was low in both groups – 1.4% in the ICI group and 1.0% in the matched control group (P = .16). Among COVID-19–positive patients, the all-cause death rate was 40.9% in the ICI group and 28.6% in the control group (P = .23).
In multivariate analysis, patients prescribed ICIs did not have a significantly elevated risk for COVID-19 relative to peers not prescribed ICIs (OR, 1.38; P = .15). However, risk was significantly increased for female patients (OR, 1.74; P < .001), those living in a town or county with higher COVID-19 positivity rate (OR, 1.59; P < .001), and those with severe comorbidity (vs. mild or moderate; OR, 9.77; P = .02).
Among COVID-19–positive patients, those prescribed ICIs did not have a significantly elevated risk for all-cause mortality (OR, 1.60; P = .71), but male sex and lower income were associated with an increased risk of death.
“We did not identify an increased risk of [COVID-19] diagnosis among patients prescribed ICIs compared to the controls,” Mr. Pahalyants said. “This information may assist patients and their providers in decision-making around continuation of therapy during this protracted pandemic. However, more research needs to be conducted to determine potential behavioral and testing factors that may have affected COVID-19 diagnosis susceptibility among patients included in the study.”
COVID-19 mortality with ICIs
For their study, Mr. Tyan and colleagues identified 25 cancer patients who had received ICIs in the year before a COVID-19 diagnosis between March 20, 2020, and June 3, 2020, at the Dana-Farber Cancer Institute and Mass General Brigham network. The researchers then matched each patient with a cancer patient having a COVID-19 diagnosis who had not received ICIs during the preceding year.
Overall, 28% of patients who had received ICIs before their COVID-19 diagnosis died from COVID-19, compared with 36% of those who had not received ICIs.
In multivariate analysis, ICI therapy did not predict COVID-19 mortality (OR, 0.36; P = .23). However, the risk of death from COVID-19 increased with age (OR, 1.14; P = .01) and for patients with chronic obstructive pulmonary disease (OR, 12.26; P = .01), and risk was lower for statin users (OR, 0.08; P = .02). Findings were similar in an analysis restricted to hospitalized patients in the ICI group and their matched controls.
Two ICI-treated patients with COVID-19 had persistent immune-related adverse events (hypophysitis in both cases), and one ICI-treated patient developed a new immune-related adverse event (hypothyroidism).
At COVID-19 presentation, relative to counterparts who had not received ICIs, patients who had received ICIs had higher platelet counts (P = .017) and higher D-dimer levels (P = .037). In the context of similar levels of other biomarkers, this finding is “of unclear significance, as all deaths in the cohort were due to respiratory failure as opposed to hypercoagulability,” Mr. Tyan said.
The patients treated with ICIs were more likely to die from COVID-19 if they had elevated troponin levels (P = .01), whereas no such association was seen for those not treated with ICIs.
“We found that ICI therapy is not associated with greater risk for COVID-19 mortality. Our period of follow-up was relatively short, but we did not observe a high incidence of new or persistent immune-related adverse events among our patients taking ICIs,” Mr. Tyan said.
“While larger prospective trials are needed to evaluate long-term safety in the context of COVID-19 infection, our findings support the continuation of ICI therapy during the pandemic as it does not appear to worsen outcomes for cancer patients,” he concluded.
ICI therapy can continue, with precautions
“The question of susceptibility to COVID-19 has been unclear as ICIs do not necessarily cause immunosuppression but certainly result in modulation of a patient’s immune system,” said Deborah Doroshow, MD, PhD, assistant professor at the Tisch Cancer Institute Icahn School of Medicine at Mount Sinai, New York. She was not involved in these studies.
“The findings of the study by Pahalyants and colleagues, which used a very large sample size, appear to convincingly demonstrate that ICI receipt is not associated with an increased susceptibility to COVID-19,” Dr. Doroshow said in an interview.
However, the findings of the study by Tyan and colleagues are more “thought-provoking,” Dr. Doroshow said. She noted that a large study published in Nature Medicine showed previous ICI therapy in cancer patients with COVID-19 increased the risk for hospitalization or severe COVID-19 requiring high-flow oxygen or mechanical ventilation. The new study was much smaller and did not perform statistical comparisons for outcomes such as oxygen requirements.
“I would feel comfortable telling patients that the data suggests that ICI treatment does not increase their risk of COVID-19. However, if they were to be diagnosed with COVID-19, it is unclear whether their previous ICI treatment increases their risk for poor outcomes,” Dr. Doroshow said.
“I would feel comfortable continuing to treat patients with ICIs at this time, but because we know that patients with cancer are generally more likely to develop COVID-19 and have poor outcomes, it is critical that our patients be educated about social distancing and mask wearing to the extent that their living and working situations permit,” she added.
Mr. Pahalyants disclosed no relevant conflicts of interest, and his study did not receive any specific funding. Mr. Tyan disclosed that he is cofounder and chief science officer of Kinnos, and his study did not receive any specific funding. Dr. Doroshow disclosed no relevant conflicts of interest.
SOURCE: Pahalyants V et al. SITC 2020, Abstract 826. Tyan K et al. SITC 2020, Abstract 481.
FROM SITC 2020
Neoadjuvant immunotherapy combo produces high response rate in melanoma
A neoadjuvant strategy combining two immunostimulatory agents with differing mechanisms of action is efficacious and safe in patients with high-risk, resectable melanoma, according to final results of the phase 2 Neo-C-Nivo trial.
The two agents are the PD-1 inhibitor nivolumab and CMP-001, an investigational Toll-like receptor 9 agonist that activates tumor-associated plasmacytoid dendritic cells.
CMP-001 and nivolumab produced a major pathologic response in 60% of patients, and these patients had a 1-year relapse-free survival rate of 89%. About 23% of patients had grade 3 treatment-related adverse events, and there were no grade 4-5 treatment-related events.
These data were reported at the Society for Immunotherapy of Cancer’s 35th Anniversary Annual Meeting.
“Stage III melanoma is a very, very high risk disease. Despite appropriate management, which involves surgical resection followed by adjuvant immunotherapy, a large number of patients still relapse,” noted study author Diwakar Davar, MD, of the University of Pittsburgh Hillman Cancer Center.
“Neoadjuvant immunotherapy in this setting enhances the systemic T-cell response to tumor antigens,” he explained. “As a result, there is greater detection and killing of micrometastatic disease. And, indeed, neoadjuvant immunotherapy with anti–[programmed death–1] monotherapy or with anti-PD1 and anti-CTLA4 combination therapy produces high response rates, although the combination therapy is associated with significant toxicity.”
Patients, treatment, and response
The Neo-C-Nivo trial enrolled 31 patients with resectable stage IIIB/C/D melanoma having clinically apparent lymph node disease.
The patients were treated with three cycles of nivolumab given every 2 weeks. They also received seven weekly injections of CMP-001 subcutaneously and then intratumorally. After surgical resection, the patients received more of the same immunotherapy.
At a median follow-up of 15 months, 60% of patients had a major pathologic response, 50% had a complete response, and 10% had a major response. Some 70% of patients (after additionally including partial responders) had any pathologic response.
“More than half of the patients that we treated had more than one injectable lesion,” Dr. Davar noted. “I want to emphasize that only one lesion was injected, so the results we got illustrate that the rest of the patients who had more than one injectable lesion had regression in their injected and uninjected lesions.”
Biomarker analyses showed that response was associated with evidence of immune activation, both in the tumor and in the blood. With immunotherapy, the density of CD8 tumor-infiltrating lymphocytes increased by a median of 10.3-fold in pathologic responders as compared with only 0.8-fold in nonresponders (P < .05). In addition, responders had evidence of activated CD8-positive T cells peripherally, as well as presence of plasmacytoid dendritic cells within the tumor microenvironment.
Survival and safety
Patients had better median relapse-free survival if they attained a major pathologic response (not reached in either group, P = .0106) or any pathologic response (not reached vs. 5 months, P = .0001).
The landmark 1-year relapse-free survival rate was 89% for major pathologic responders and 90% for all pathologic responders.
Overall, 22.6% of patients experienced grade 3 treatment-related adverse events, the majority of which did not require medical intervention and none of which delayed planned surgery. There were no grade 4-5 treatment-related adverse events.
Cytokine release syndrome was uncommon, seen in 16.1% of patients, possibly because the cohort received prophylaxis, Dr. Davar proposed.
Another treatment option?
“Intratumoral CMP-001 increases clinical efficacy of PD-1 blockade with minimal additional toxicity in patients with regionally advanced melanoma. Further study of this combination in high-risk resectable melanoma is planned,” Dr. Davar concluded.
“This combination achieved high response rates and certainly should be considered for a larger trial,” agreed session cochair Brian Gastman, MD, of the Cleveland (Ohio) Clinic.
However, long-term outcomes are pending, and it is not clear how efficacy of the studied combination will ultimately stack up against that of other treatment options, Dr. Gastman cautioned in an interview. “For example, it’s hard to tell if this will lead to better results versus, say, T-VEC [talimogene laherparepvec] with an anti-PD-1 agent,” he elaborated.
Nonetheless, “the implication of these findings is that there is another potential injectable option that can be combined with checkpoint inhibitors, and it may be useful for patients with refractory disease,” Dr. Gastman concluded.
The trial was funded by Checkmate Pharmaceuticals. Dr. Davar disclosed relationships with Checkmate Pharmaceuticals, Array Biopharma, Merck, Shionogi, Vedanta, Bristol-Myers Squibb, CellSight Technologies, GlaxoSmithKline/Tesaro, and Medpacto. Dr. Gastman disclosed no relevant conflicts of interest.
SOURCE: Davar D et al. SITC 2020, Abstract 303.
A neoadjuvant strategy combining two immunostimulatory agents with differing mechanisms of action is efficacious and safe in patients with high-risk, resectable melanoma, according to final results of the phase 2 Neo-C-Nivo trial.
The two agents are the PD-1 inhibitor nivolumab and CMP-001, an investigational Toll-like receptor 9 agonist that activates tumor-associated plasmacytoid dendritic cells.
CMP-001 and nivolumab produced a major pathologic response in 60% of patients, and these patients had a 1-year relapse-free survival rate of 89%. About 23% of patients had grade 3 treatment-related adverse events, and there were no grade 4-5 treatment-related events.
These data were reported at the Society for Immunotherapy of Cancer’s 35th Anniversary Annual Meeting.
“Stage III melanoma is a very, very high risk disease. Despite appropriate management, which involves surgical resection followed by adjuvant immunotherapy, a large number of patients still relapse,” noted study author Diwakar Davar, MD, of the University of Pittsburgh Hillman Cancer Center.
“Neoadjuvant immunotherapy in this setting enhances the systemic T-cell response to tumor antigens,” he explained. “As a result, there is greater detection and killing of micrometastatic disease. And, indeed, neoadjuvant immunotherapy with anti–[programmed death–1] monotherapy or with anti-PD1 and anti-CTLA4 combination therapy produces high response rates, although the combination therapy is associated with significant toxicity.”
Patients, treatment, and response
The Neo-C-Nivo trial enrolled 31 patients with resectable stage IIIB/C/D melanoma having clinically apparent lymph node disease.
The patients were treated with three cycles of nivolumab given every 2 weeks. They also received seven weekly injections of CMP-001 subcutaneously and then intratumorally. After surgical resection, the patients received more of the same immunotherapy.
At a median follow-up of 15 months, 60% of patients had a major pathologic response, 50% had a complete response, and 10% had a major response. Some 70% of patients (after additionally including partial responders) had any pathologic response.
“More than half of the patients that we treated had more than one injectable lesion,” Dr. Davar noted. “I want to emphasize that only one lesion was injected, so the results we got illustrate that the rest of the patients who had more than one injectable lesion had regression in their injected and uninjected lesions.”
Biomarker analyses showed that response was associated with evidence of immune activation, both in the tumor and in the blood. With immunotherapy, the density of CD8 tumor-infiltrating lymphocytes increased by a median of 10.3-fold in pathologic responders as compared with only 0.8-fold in nonresponders (P < .05). In addition, responders had evidence of activated CD8-positive T cells peripherally, as well as presence of plasmacytoid dendritic cells within the tumor microenvironment.
Survival and safety
Patients had better median relapse-free survival if they attained a major pathologic response (not reached in either group, P = .0106) or any pathologic response (not reached vs. 5 months, P = .0001).
The landmark 1-year relapse-free survival rate was 89% for major pathologic responders and 90% for all pathologic responders.
Overall, 22.6% of patients experienced grade 3 treatment-related adverse events, the majority of which did not require medical intervention and none of which delayed planned surgery. There were no grade 4-5 treatment-related adverse events.
Cytokine release syndrome was uncommon, seen in 16.1% of patients, possibly because the cohort received prophylaxis, Dr. Davar proposed.
Another treatment option?
“Intratumoral CMP-001 increases clinical efficacy of PD-1 blockade with minimal additional toxicity in patients with regionally advanced melanoma. Further study of this combination in high-risk resectable melanoma is planned,” Dr. Davar concluded.
“This combination achieved high response rates and certainly should be considered for a larger trial,” agreed session cochair Brian Gastman, MD, of the Cleveland (Ohio) Clinic.
However, long-term outcomes are pending, and it is not clear how efficacy of the studied combination will ultimately stack up against that of other treatment options, Dr. Gastman cautioned in an interview. “For example, it’s hard to tell if this will lead to better results versus, say, T-VEC [talimogene laherparepvec] with an anti-PD-1 agent,” he elaborated.
Nonetheless, “the implication of these findings is that there is another potential injectable option that can be combined with checkpoint inhibitors, and it may be useful for patients with refractory disease,” Dr. Gastman concluded.
The trial was funded by Checkmate Pharmaceuticals. Dr. Davar disclosed relationships with Checkmate Pharmaceuticals, Array Biopharma, Merck, Shionogi, Vedanta, Bristol-Myers Squibb, CellSight Technologies, GlaxoSmithKline/Tesaro, and Medpacto. Dr. Gastman disclosed no relevant conflicts of interest.
SOURCE: Davar D et al. SITC 2020, Abstract 303.
A neoadjuvant strategy combining two immunostimulatory agents with differing mechanisms of action is efficacious and safe in patients with high-risk, resectable melanoma, according to final results of the phase 2 Neo-C-Nivo trial.
The two agents are the PD-1 inhibitor nivolumab and CMP-001, an investigational Toll-like receptor 9 agonist that activates tumor-associated plasmacytoid dendritic cells.
CMP-001 and nivolumab produced a major pathologic response in 60% of patients, and these patients had a 1-year relapse-free survival rate of 89%. About 23% of patients had grade 3 treatment-related adverse events, and there were no grade 4-5 treatment-related events.
These data were reported at the Society for Immunotherapy of Cancer’s 35th Anniversary Annual Meeting.
“Stage III melanoma is a very, very high risk disease. Despite appropriate management, which involves surgical resection followed by adjuvant immunotherapy, a large number of patients still relapse,” noted study author Diwakar Davar, MD, of the University of Pittsburgh Hillman Cancer Center.
“Neoadjuvant immunotherapy in this setting enhances the systemic T-cell response to tumor antigens,” he explained. “As a result, there is greater detection and killing of micrometastatic disease. And, indeed, neoadjuvant immunotherapy with anti–[programmed death–1] monotherapy or with anti-PD1 and anti-CTLA4 combination therapy produces high response rates, although the combination therapy is associated with significant toxicity.”
Patients, treatment, and response
The Neo-C-Nivo trial enrolled 31 patients with resectable stage IIIB/C/D melanoma having clinically apparent lymph node disease.
The patients were treated with three cycles of nivolumab given every 2 weeks. They also received seven weekly injections of CMP-001 subcutaneously and then intratumorally. After surgical resection, the patients received more of the same immunotherapy.
At a median follow-up of 15 months, 60% of patients had a major pathologic response, 50% had a complete response, and 10% had a major response. Some 70% of patients (after additionally including partial responders) had any pathologic response.
“More than half of the patients that we treated had more than one injectable lesion,” Dr. Davar noted. “I want to emphasize that only one lesion was injected, so the results we got illustrate that the rest of the patients who had more than one injectable lesion had regression in their injected and uninjected lesions.”
Biomarker analyses showed that response was associated with evidence of immune activation, both in the tumor and in the blood. With immunotherapy, the density of CD8 tumor-infiltrating lymphocytes increased by a median of 10.3-fold in pathologic responders as compared with only 0.8-fold in nonresponders (P < .05). In addition, responders had evidence of activated CD8-positive T cells peripherally, as well as presence of plasmacytoid dendritic cells within the tumor microenvironment.
Survival and safety
Patients had better median relapse-free survival if they attained a major pathologic response (not reached in either group, P = .0106) or any pathologic response (not reached vs. 5 months, P = .0001).
The landmark 1-year relapse-free survival rate was 89% for major pathologic responders and 90% for all pathologic responders.
Overall, 22.6% of patients experienced grade 3 treatment-related adverse events, the majority of which did not require medical intervention and none of which delayed planned surgery. There were no grade 4-5 treatment-related adverse events.
Cytokine release syndrome was uncommon, seen in 16.1% of patients, possibly because the cohort received prophylaxis, Dr. Davar proposed.
Another treatment option?
“Intratumoral CMP-001 increases clinical efficacy of PD-1 blockade with minimal additional toxicity in patients with regionally advanced melanoma. Further study of this combination in high-risk resectable melanoma is planned,” Dr. Davar concluded.
“This combination achieved high response rates and certainly should be considered for a larger trial,” agreed session cochair Brian Gastman, MD, of the Cleveland (Ohio) Clinic.
However, long-term outcomes are pending, and it is not clear how efficacy of the studied combination will ultimately stack up against that of other treatment options, Dr. Gastman cautioned in an interview. “For example, it’s hard to tell if this will lead to better results versus, say, T-VEC [talimogene laherparepvec] with an anti-PD-1 agent,” he elaborated.
Nonetheless, “the implication of these findings is that there is another potential injectable option that can be combined with checkpoint inhibitors, and it may be useful for patients with refractory disease,” Dr. Gastman concluded.
The trial was funded by Checkmate Pharmaceuticals. Dr. Davar disclosed relationships with Checkmate Pharmaceuticals, Array Biopharma, Merck, Shionogi, Vedanta, Bristol-Myers Squibb, CellSight Technologies, GlaxoSmithKline/Tesaro, and Medpacto. Dr. Gastman disclosed no relevant conflicts of interest.
SOURCE: Davar D et al. SITC 2020, Abstract 303.
FROM SITC 2020
Vaccine regimen boosts immune response in malignant melanoma
“[This] study supports the potential of combining [the] CDX-1401 vaccine and CDX-301 with checkpoint inhibitors, which are standard-of-care therapy,” study author Nina Bhardwaj, MD, PhD, of the Icahn School of Medicine at Mount Sinai, New York, and colleagues wrote.
The team described their study in Nature Cancer.
The multicenter, open-label, randomized study included 60 patients with resected stage IIb-IV melanoma, all of whom had not received any prior treatment, including radiotherapy, biologics, and chemotherapy.
Patients randomized to the combination arm (cohort 1; n = 30) received the anti–DEC-205-NY-ESO-1 vaccine CDX-1401 and were pretreated with CDX-301, while those in the comparator arm (cohort 2; n = 30) received CDX-1401 alone.
Serial blood samples were collected to evaluate response to the vaccine antigen (NY-ESO-1) before each cycle, as well as 4 weeks and 12 weeks after the last vaccination. The primary endpoint was immune response prior to the third vaccination.
T-cell responses were detected in 76% of patients who received CDX-301 and 33% of patients who did not (P < .0011). In addition, the magnitude of response was significantly higher with the combination than with CDX-1401 alone (mean of 41 and 17 corrected spots per well, respectively; P = .032).
“All 30 (100%) cohort 1 participants had NY-ESO-1–specific T-cell responses for at least one time point, whereas 8 (27%) cohort 2 participants had no responses at any time point,” the researchers wrote.
Responses were maintained up to 12 weeks after the final vaccination, but there was no statistically significant difference between cohorts 1 and 2 at 12 weeks (54% and 38%, respectively; P = .2).
The researchers acknowledged that a key limitation of this trial was that it was not sized to evaluate relapse or overall survival.
“Given that ipilimumab, pembrolizumab, and nivolumab are approved as adjuvant therapy for high-risk stage III melanoma, vaccines incorporating CDX-301 and suitable antigen-containing platforms merit clinical investigation in the adjuvant setting in combination with immune checkpoint blockade,” the authors wrote.
“I am hopeful that highly immunogenic cancer vaccines can be added to currently approved immunotherapies, thus boosting an individual’s anticancer immune response even further,” Dr. Bhardwaj said in an interview.
This study was supported by grant funding from the National Cancer Institute. Some authors reported financial affiliations with Celldex Therapeutics, NanoString Technologies, and Oncovir. Dr. Bhardwaj disclosed relationships with Celldex and Oncovir.
SOURCE: Bhardwaj N et al. Nat Cancer. 2020 Nov 16. doi: 10.1038/s43018-020-00143-y.
“[This] study supports the potential of combining [the] CDX-1401 vaccine and CDX-301 with checkpoint inhibitors, which are standard-of-care therapy,” study author Nina Bhardwaj, MD, PhD, of the Icahn School of Medicine at Mount Sinai, New York, and colleagues wrote.
The team described their study in Nature Cancer.
The multicenter, open-label, randomized study included 60 patients with resected stage IIb-IV melanoma, all of whom had not received any prior treatment, including radiotherapy, biologics, and chemotherapy.
Patients randomized to the combination arm (cohort 1; n = 30) received the anti–DEC-205-NY-ESO-1 vaccine CDX-1401 and were pretreated with CDX-301, while those in the comparator arm (cohort 2; n = 30) received CDX-1401 alone.
Serial blood samples were collected to evaluate response to the vaccine antigen (NY-ESO-1) before each cycle, as well as 4 weeks and 12 weeks after the last vaccination. The primary endpoint was immune response prior to the third vaccination.
T-cell responses were detected in 76% of patients who received CDX-301 and 33% of patients who did not (P < .0011). In addition, the magnitude of response was significantly higher with the combination than with CDX-1401 alone (mean of 41 and 17 corrected spots per well, respectively; P = .032).
“All 30 (100%) cohort 1 participants had NY-ESO-1–specific T-cell responses for at least one time point, whereas 8 (27%) cohort 2 participants had no responses at any time point,” the researchers wrote.
Responses were maintained up to 12 weeks after the final vaccination, but there was no statistically significant difference between cohorts 1 and 2 at 12 weeks (54% and 38%, respectively; P = .2).
The researchers acknowledged that a key limitation of this trial was that it was not sized to evaluate relapse or overall survival.
“Given that ipilimumab, pembrolizumab, and nivolumab are approved as adjuvant therapy for high-risk stage III melanoma, vaccines incorporating CDX-301 and suitable antigen-containing platforms merit clinical investigation in the adjuvant setting in combination with immune checkpoint blockade,” the authors wrote.
“I am hopeful that highly immunogenic cancer vaccines can be added to currently approved immunotherapies, thus boosting an individual’s anticancer immune response even further,” Dr. Bhardwaj said in an interview.
This study was supported by grant funding from the National Cancer Institute. Some authors reported financial affiliations with Celldex Therapeutics, NanoString Technologies, and Oncovir. Dr. Bhardwaj disclosed relationships with Celldex and Oncovir.
SOURCE: Bhardwaj N et al. Nat Cancer. 2020 Nov 16. doi: 10.1038/s43018-020-00143-y.
“[This] study supports the potential of combining [the] CDX-1401 vaccine and CDX-301 with checkpoint inhibitors, which are standard-of-care therapy,” study author Nina Bhardwaj, MD, PhD, of the Icahn School of Medicine at Mount Sinai, New York, and colleagues wrote.
The team described their study in Nature Cancer.
The multicenter, open-label, randomized study included 60 patients with resected stage IIb-IV melanoma, all of whom had not received any prior treatment, including radiotherapy, biologics, and chemotherapy.
Patients randomized to the combination arm (cohort 1; n = 30) received the anti–DEC-205-NY-ESO-1 vaccine CDX-1401 and were pretreated with CDX-301, while those in the comparator arm (cohort 2; n = 30) received CDX-1401 alone.
Serial blood samples were collected to evaluate response to the vaccine antigen (NY-ESO-1) before each cycle, as well as 4 weeks and 12 weeks after the last vaccination. The primary endpoint was immune response prior to the third vaccination.
T-cell responses were detected in 76% of patients who received CDX-301 and 33% of patients who did not (P < .0011). In addition, the magnitude of response was significantly higher with the combination than with CDX-1401 alone (mean of 41 and 17 corrected spots per well, respectively; P = .032).
“All 30 (100%) cohort 1 participants had NY-ESO-1–specific T-cell responses for at least one time point, whereas 8 (27%) cohort 2 participants had no responses at any time point,” the researchers wrote.
Responses were maintained up to 12 weeks after the final vaccination, but there was no statistically significant difference between cohorts 1 and 2 at 12 weeks (54% and 38%, respectively; P = .2).
The researchers acknowledged that a key limitation of this trial was that it was not sized to evaluate relapse or overall survival.
“Given that ipilimumab, pembrolizumab, and nivolumab are approved as adjuvant therapy for high-risk stage III melanoma, vaccines incorporating CDX-301 and suitable antigen-containing platforms merit clinical investigation in the adjuvant setting in combination with immune checkpoint blockade,” the authors wrote.
“I am hopeful that highly immunogenic cancer vaccines can be added to currently approved immunotherapies, thus boosting an individual’s anticancer immune response even further,” Dr. Bhardwaj said in an interview.
This study was supported by grant funding from the National Cancer Institute. Some authors reported financial affiliations with Celldex Therapeutics, NanoString Technologies, and Oncovir. Dr. Bhardwaj disclosed relationships with Celldex and Oncovir.
SOURCE: Bhardwaj N et al. Nat Cancer. 2020 Nov 16. doi: 10.1038/s43018-020-00143-y.
FROM NATURE CANCER
Mitotic rate makes comeback as melanoma prognosticator
at a virtual forum on cutaneous malignancies jointly presented by Postgraduate Institute for Medicine and Global Academy for Medical Education.
Dr. Kashani-Sabet, a dermatologist, director of the melanoma research program, and senior scientist at the California Pacific Medical Center Research Institute, San Francisco, was first author of a large recently published study that made a strong case for reincorporation of mitotic index into the American Joint Cancer Committee (AJCC) melanoma staging system.
Mitotic index was included in the 7th edition of the AJCC classification system, but was dropped from the current 8th edition in part because of concern it could potentially lead to overtreatment of patients with very thin melanomas of less than 0.5-mm thickness.
However, mitotic rate, like tumor thickness, is a continuous variable. And like tumor thickness, mitotic rate has a nonlinear relationship with survival. That’s why the AJCC staging system utilizes unequally spaced tumor thickness cut points of 1, 2, and 4 mm to define T1-T4 disease. But until the study led by Dr. Kashani-Sabet, optimal cut points for mitotic rate hadn’t been defined.
He and his coinvestigators at Melanoma Institute Australia collected a dataset comprising 5,050 patients with primary cutaneous melanoma in Australia and Northern California, all of whom either died of metastatic melanoma or remained distant metastasis–free for at least 8 years of follow-up. Median follow-up of the cohort was 9.5 years.
The investigators developed computer-generated cut points for mitotic rate and its impact on survival for each melanoma T category, then assessed their value in randomly split training and validation sets from their large cohort. For T1 melanoma, the optimal cut point proved to be 2 mitoses/mm2; more than two was independently associated with increased mortality risk. For T2 disease, the optimal cut point was 4, for T3 it was 6, and for T4 it was 7 mitoses/mm2.
A key study finding: In a multivariate regression analysis, tumor thickness was associated with survival, with an odds ratio of 1.58, ulceration had an odds ratio of 1.55, and mitotic rate by cut point had an odds ratio of 5.38. Each of these three characteristics was independently associated with survival (P < .00005). Dr. Kashani-Sabet said that, despite the more than threefold greater odds ratio for mitotic rate, compared with ulceration, in a Kaplan-Meier analysis, the survival impact of ulceration being present was “virtually identical” to an elevated mitotic rate in each T category.
He and his coinvestigators proposed a revised T-category system which incorporates this new insight. There is no change in tumor thickness to define T1-T4 melanoma: T1 is less than 1.0 mm, T2 is greater than 1-2.0 mm, T3 is greater than 2.01-4.0 mm, and T4 is greater than 4.0 mm. But now, within each T category the proposal is that the “a” designation indicates neither ulceration nor an elevated mitotic rate is present, while “b” means ulceration and/or an elevated mitotic rate using the optimal cut point for that T category is present. In their Australian/Northern California dataset, these new T categories showed a distinct separation in cumulative survival.
Dr. Kashani-Sabet and coworkers have submitted a proposal to validate their results using the AJCC database. Based upon a first look at the numbers, “We think it’s really very likely that these observations can be reproduced in this most important of datasets,” he predicted.
During a panel discussion, Sancy Leachman, MD, PhD, offered a recent example from her own practice where an elevated mitotic index as defined by Dr. Kashani-Sabet and coworkers served as a red flag.
“I had a patient with a 0.3-mm melanoma with three mitoses. I did a sentinel lymph node biopsy on the patient, and she was positive,” said Dr. Leachman, professor and chair of the department of dermatology at Oregon Health & Science University, Portland.
Dr. Kashani-Sabet commented that, while an elevated mitotic index is clearly not an absolute requirement for metastasis, when present it’s a prognostically important finding.
Moreover, as adjuvant therapies of proven value in node-positive disease increasingly come under study in node-negative melanoma, it will be critical to identify the high-risk node-negative subgroup for whom such therapies should be targeted.
“While T4 tumors and ulcerated melanomas are clearly high risk, they’re not going to capture every patient who has a very high risk of distant metastases and death. I think mitotic rate is another pathway to identify patients who very well might benefit and should be candidates for inclusion in those adjuvant therapy trials as we’re moving more into node-negative patients,” according to Dr. Kashani-Sabet.
He reported having no financial conflicts of interest regarding his presentation.
Global Academy for Medical Education and this news organization are owned by the same company.
at a virtual forum on cutaneous malignancies jointly presented by Postgraduate Institute for Medicine and Global Academy for Medical Education.
Dr. Kashani-Sabet, a dermatologist, director of the melanoma research program, and senior scientist at the California Pacific Medical Center Research Institute, San Francisco, was first author of a large recently published study that made a strong case for reincorporation of mitotic index into the American Joint Cancer Committee (AJCC) melanoma staging system.
Mitotic index was included in the 7th edition of the AJCC classification system, but was dropped from the current 8th edition in part because of concern it could potentially lead to overtreatment of patients with very thin melanomas of less than 0.5-mm thickness.
However, mitotic rate, like tumor thickness, is a continuous variable. And like tumor thickness, mitotic rate has a nonlinear relationship with survival. That’s why the AJCC staging system utilizes unequally spaced tumor thickness cut points of 1, 2, and 4 mm to define T1-T4 disease. But until the study led by Dr. Kashani-Sabet, optimal cut points for mitotic rate hadn’t been defined.
He and his coinvestigators at Melanoma Institute Australia collected a dataset comprising 5,050 patients with primary cutaneous melanoma in Australia and Northern California, all of whom either died of metastatic melanoma or remained distant metastasis–free for at least 8 years of follow-up. Median follow-up of the cohort was 9.5 years.
The investigators developed computer-generated cut points for mitotic rate and its impact on survival for each melanoma T category, then assessed their value in randomly split training and validation sets from their large cohort. For T1 melanoma, the optimal cut point proved to be 2 mitoses/mm2; more than two was independently associated with increased mortality risk. For T2 disease, the optimal cut point was 4, for T3 it was 6, and for T4 it was 7 mitoses/mm2.
A key study finding: In a multivariate regression analysis, tumor thickness was associated with survival, with an odds ratio of 1.58, ulceration had an odds ratio of 1.55, and mitotic rate by cut point had an odds ratio of 5.38. Each of these three characteristics was independently associated with survival (P < .00005). Dr. Kashani-Sabet said that, despite the more than threefold greater odds ratio for mitotic rate, compared with ulceration, in a Kaplan-Meier analysis, the survival impact of ulceration being present was “virtually identical” to an elevated mitotic rate in each T category.
He and his coinvestigators proposed a revised T-category system which incorporates this new insight. There is no change in tumor thickness to define T1-T4 melanoma: T1 is less than 1.0 mm, T2 is greater than 1-2.0 mm, T3 is greater than 2.01-4.0 mm, and T4 is greater than 4.0 mm. But now, within each T category the proposal is that the “a” designation indicates neither ulceration nor an elevated mitotic rate is present, while “b” means ulceration and/or an elevated mitotic rate using the optimal cut point for that T category is present. In their Australian/Northern California dataset, these new T categories showed a distinct separation in cumulative survival.
Dr. Kashani-Sabet and coworkers have submitted a proposal to validate their results using the AJCC database. Based upon a first look at the numbers, “We think it’s really very likely that these observations can be reproduced in this most important of datasets,” he predicted.
During a panel discussion, Sancy Leachman, MD, PhD, offered a recent example from her own practice where an elevated mitotic index as defined by Dr. Kashani-Sabet and coworkers served as a red flag.
“I had a patient with a 0.3-mm melanoma with three mitoses. I did a sentinel lymph node biopsy on the patient, and she was positive,” said Dr. Leachman, professor and chair of the department of dermatology at Oregon Health & Science University, Portland.
Dr. Kashani-Sabet commented that, while an elevated mitotic index is clearly not an absolute requirement for metastasis, when present it’s a prognostically important finding.
Moreover, as adjuvant therapies of proven value in node-positive disease increasingly come under study in node-negative melanoma, it will be critical to identify the high-risk node-negative subgroup for whom such therapies should be targeted.
“While T4 tumors and ulcerated melanomas are clearly high risk, they’re not going to capture every patient who has a very high risk of distant metastases and death. I think mitotic rate is another pathway to identify patients who very well might benefit and should be candidates for inclusion in those adjuvant therapy trials as we’re moving more into node-negative patients,” according to Dr. Kashani-Sabet.
He reported having no financial conflicts of interest regarding his presentation.
Global Academy for Medical Education and this news organization are owned by the same company.
at a virtual forum on cutaneous malignancies jointly presented by Postgraduate Institute for Medicine and Global Academy for Medical Education.
Dr. Kashani-Sabet, a dermatologist, director of the melanoma research program, and senior scientist at the California Pacific Medical Center Research Institute, San Francisco, was first author of a large recently published study that made a strong case for reincorporation of mitotic index into the American Joint Cancer Committee (AJCC) melanoma staging system.
Mitotic index was included in the 7th edition of the AJCC classification system, but was dropped from the current 8th edition in part because of concern it could potentially lead to overtreatment of patients with very thin melanomas of less than 0.5-mm thickness.
However, mitotic rate, like tumor thickness, is a continuous variable. And like tumor thickness, mitotic rate has a nonlinear relationship with survival. That’s why the AJCC staging system utilizes unequally spaced tumor thickness cut points of 1, 2, and 4 mm to define T1-T4 disease. But until the study led by Dr. Kashani-Sabet, optimal cut points for mitotic rate hadn’t been defined.
He and his coinvestigators at Melanoma Institute Australia collected a dataset comprising 5,050 patients with primary cutaneous melanoma in Australia and Northern California, all of whom either died of metastatic melanoma or remained distant metastasis–free for at least 8 years of follow-up. Median follow-up of the cohort was 9.5 years.
The investigators developed computer-generated cut points for mitotic rate and its impact on survival for each melanoma T category, then assessed their value in randomly split training and validation sets from their large cohort. For T1 melanoma, the optimal cut point proved to be 2 mitoses/mm2; more than two was independently associated with increased mortality risk. For T2 disease, the optimal cut point was 4, for T3 it was 6, and for T4 it was 7 mitoses/mm2.
A key study finding: In a multivariate regression analysis, tumor thickness was associated with survival, with an odds ratio of 1.58, ulceration had an odds ratio of 1.55, and mitotic rate by cut point had an odds ratio of 5.38. Each of these three characteristics was independently associated with survival (P < .00005). Dr. Kashani-Sabet said that, despite the more than threefold greater odds ratio for mitotic rate, compared with ulceration, in a Kaplan-Meier analysis, the survival impact of ulceration being present was “virtually identical” to an elevated mitotic rate in each T category.
He and his coinvestigators proposed a revised T-category system which incorporates this new insight. There is no change in tumor thickness to define T1-T4 melanoma: T1 is less than 1.0 mm, T2 is greater than 1-2.0 mm, T3 is greater than 2.01-4.0 mm, and T4 is greater than 4.0 mm. But now, within each T category the proposal is that the “a” designation indicates neither ulceration nor an elevated mitotic rate is present, while “b” means ulceration and/or an elevated mitotic rate using the optimal cut point for that T category is present. In their Australian/Northern California dataset, these new T categories showed a distinct separation in cumulative survival.
Dr. Kashani-Sabet and coworkers have submitted a proposal to validate their results using the AJCC database. Based upon a first look at the numbers, “We think it’s really very likely that these observations can be reproduced in this most important of datasets,” he predicted.
During a panel discussion, Sancy Leachman, MD, PhD, offered a recent example from her own practice where an elevated mitotic index as defined by Dr. Kashani-Sabet and coworkers served as a red flag.
“I had a patient with a 0.3-mm melanoma with three mitoses. I did a sentinel lymph node biopsy on the patient, and she was positive,” said Dr. Leachman, professor and chair of the department of dermatology at Oregon Health & Science University, Portland.
Dr. Kashani-Sabet commented that, while an elevated mitotic index is clearly not an absolute requirement for metastasis, when present it’s a prognostically important finding.
Moreover, as adjuvant therapies of proven value in node-positive disease increasingly come under study in node-negative melanoma, it will be critical to identify the high-risk node-negative subgroup for whom such therapies should be targeted.
“While T4 tumors and ulcerated melanomas are clearly high risk, they’re not going to capture every patient who has a very high risk of distant metastases and death. I think mitotic rate is another pathway to identify patients who very well might benefit and should be candidates for inclusion in those adjuvant therapy trials as we’re moving more into node-negative patients,” according to Dr. Kashani-Sabet.
He reported having no financial conflicts of interest regarding his presentation.
Global Academy for Medical Education and this news organization are owned by the same company.
FROM THE CUTANEOUS MALIGNANCIES FORUM
Risk factors for severe immune-related AEs identified
The first nationwide study of severe immune-related adverse events among cancer patients treated with immune checkpoint inhibitors helps identify those at elevated risk. The findings were reported at the Society for Immunotherapy of Cancer’s 35th Anniversary Annual Meeting.
“Immune-related adverse events are a very serious side effect of immune checkpoint inhibitor therapy, and as this therapy has become more common for treating advanced cancers, the incidence of immune-related adverse events has increased as well,” said presenting author William Murphy, a dual MD and MBA student at Harvard Medical School and Harvard Business School, both in Boston.
“However, because there is no ICD code for immune-related adverse events, it’s very difficult to study them at a population level. Most of the current literature around the incidence of immune-related adverse events and factors that are predictive of incidence are based on clinical trials and small studies,” Mr. Murphy noted.
He and his colleagues analyzed claims data from a U.S. nationwide health insurance plan for 14,378 patients who had a primary cancer and received at least one administration of an immune checkpoint inhibitor – an inhibitor of PD-1, PD-L1, or CTLA4 – during 2011-2019.
Over 19,117 patient-years of follow-up, 504 patients (3.5%) developed a severe immune-related adverse event (irAE), defined as one occurring within 2 years of their treatment and requiring inpatient hospitalization and new immunosuppression.
The incidence of severe irAEs per patient treatment year was 2.6% overall, rising from 0% in 2011 to 3.7% in 2016.
In multivariate analysis, patients had an elevated risk of severe irAEs if they received combination immunotherapy as compared with monotherapy (odds ratio, 2.44; P < .001).
On the other hand, risk fell with advancing age (OR, 0.98 per additional year; P < .001). And risk was lower for patients with melanoma (OR, 0.70; P = .01), renal cell carcinoma (OR, 0.71; P = .03), and other cancers (OR, 0.50; P < .001), compared with lung cancer.
Sex, geographic region, income, employment status, and comorbidity were not significantly associated with the risk of severe irAEs.
“We hope that patients and providers can use this evidence from a nationwide study of severe irAEs to guide treatment and management decisions,” Mr. Murphy concluded.
Real-world evidence
“As the use of immune checkpoint inhibitors increases for patients with a variety of different tumor types, there is increasing need for population-level evidence for patients treated outside of clinical trials,” said Allison Betof Warner, MD, PhD, an assistant attending physician with the melanoma service at Memorial Sloan Kettering Cancer Center in New York.
“This is a well-conducted study with an innovative approach to using real-world evidence to examine immune-related adverse events,” she added.
To her knowledge, it is the first study to look at multiple cancers for which immunotherapy is approved, Dr. Betof Warner said. This approach resulted in a large patient sample, giving power to detect differences between groups.
“The authors’ finding that combination immunotherapy is associated with more severe irAEs is in line with our clinical experience and other data sets, and the data regarding increased odds of severe irAEs in younger patients and those with lung cancer raise interesting biological questions about the etiology of irAEs,” Dr. Betof Warner noted.
However, certain factors complicate interpretation of the study’s findings, she cautioned. One such factor is requiring hospitalization to define an irAE.
“Practice patterns regarding hospitalization vary quite widely from center to center. For example, in some centers, all patients with immune-mediated colitis are hospitalized, whereas in others, these patients are managed predominantly in the outpatient setting, even in cases of high-grade toxicity,” she explained. “Practice patterns have also changed drastically over time as oncologists have grown more comfortable managing immune-related adverse events.”
Another factor is potential confounding. For example, patients with melanoma are more likely to receive combination immunotherapy given its longstanding approval for this cancer, whereas it is comparatively new for other cancers. Also, age may differ across cancers.
“The data the authors have provided are a great starting point, but I think further analysis is needed before these observations can be validated and integrated into practice,” Dr. Betof Warner concluded.
This study did not receive any specific funding. Mr. Murphy and Dr. Betof Warner disclosed no relevant conflicts of interest.
SOURCE: Murphy W et al. SITC 2020, Abstract 854.
The first nationwide study of severe immune-related adverse events among cancer patients treated with immune checkpoint inhibitors helps identify those at elevated risk. The findings were reported at the Society for Immunotherapy of Cancer’s 35th Anniversary Annual Meeting.
“Immune-related adverse events are a very serious side effect of immune checkpoint inhibitor therapy, and as this therapy has become more common for treating advanced cancers, the incidence of immune-related adverse events has increased as well,” said presenting author William Murphy, a dual MD and MBA student at Harvard Medical School and Harvard Business School, both in Boston.
“However, because there is no ICD code for immune-related adverse events, it’s very difficult to study them at a population level. Most of the current literature around the incidence of immune-related adverse events and factors that are predictive of incidence are based on clinical trials and small studies,” Mr. Murphy noted.
He and his colleagues analyzed claims data from a U.S. nationwide health insurance plan for 14,378 patients who had a primary cancer and received at least one administration of an immune checkpoint inhibitor – an inhibitor of PD-1, PD-L1, or CTLA4 – during 2011-2019.
Over 19,117 patient-years of follow-up, 504 patients (3.5%) developed a severe immune-related adverse event (irAE), defined as one occurring within 2 years of their treatment and requiring inpatient hospitalization and new immunosuppression.
The incidence of severe irAEs per patient treatment year was 2.6% overall, rising from 0% in 2011 to 3.7% in 2016.
In multivariate analysis, patients had an elevated risk of severe irAEs if they received combination immunotherapy as compared with monotherapy (odds ratio, 2.44; P < .001).
On the other hand, risk fell with advancing age (OR, 0.98 per additional year; P < .001). And risk was lower for patients with melanoma (OR, 0.70; P = .01), renal cell carcinoma (OR, 0.71; P = .03), and other cancers (OR, 0.50; P < .001), compared with lung cancer.
Sex, geographic region, income, employment status, and comorbidity were not significantly associated with the risk of severe irAEs.
“We hope that patients and providers can use this evidence from a nationwide study of severe irAEs to guide treatment and management decisions,” Mr. Murphy concluded.
Real-world evidence
“As the use of immune checkpoint inhibitors increases for patients with a variety of different tumor types, there is increasing need for population-level evidence for patients treated outside of clinical trials,” said Allison Betof Warner, MD, PhD, an assistant attending physician with the melanoma service at Memorial Sloan Kettering Cancer Center in New York.
“This is a well-conducted study with an innovative approach to using real-world evidence to examine immune-related adverse events,” she added.
To her knowledge, it is the first study to look at multiple cancers for which immunotherapy is approved, Dr. Betof Warner said. This approach resulted in a large patient sample, giving power to detect differences between groups.
“The authors’ finding that combination immunotherapy is associated with more severe irAEs is in line with our clinical experience and other data sets, and the data regarding increased odds of severe irAEs in younger patients and those with lung cancer raise interesting biological questions about the etiology of irAEs,” Dr. Betof Warner noted.
However, certain factors complicate interpretation of the study’s findings, she cautioned. One such factor is requiring hospitalization to define an irAE.
“Practice patterns regarding hospitalization vary quite widely from center to center. For example, in some centers, all patients with immune-mediated colitis are hospitalized, whereas in others, these patients are managed predominantly in the outpatient setting, even in cases of high-grade toxicity,” she explained. “Practice patterns have also changed drastically over time as oncologists have grown more comfortable managing immune-related adverse events.”
Another factor is potential confounding. For example, patients with melanoma are more likely to receive combination immunotherapy given its longstanding approval for this cancer, whereas it is comparatively new for other cancers. Also, age may differ across cancers.
“The data the authors have provided are a great starting point, but I think further analysis is needed before these observations can be validated and integrated into practice,” Dr. Betof Warner concluded.
This study did not receive any specific funding. Mr. Murphy and Dr. Betof Warner disclosed no relevant conflicts of interest.
SOURCE: Murphy W et al. SITC 2020, Abstract 854.
The first nationwide study of severe immune-related adverse events among cancer patients treated with immune checkpoint inhibitors helps identify those at elevated risk. The findings were reported at the Society for Immunotherapy of Cancer’s 35th Anniversary Annual Meeting.
“Immune-related adverse events are a very serious side effect of immune checkpoint inhibitor therapy, and as this therapy has become more common for treating advanced cancers, the incidence of immune-related adverse events has increased as well,” said presenting author William Murphy, a dual MD and MBA student at Harvard Medical School and Harvard Business School, both in Boston.
“However, because there is no ICD code for immune-related adverse events, it’s very difficult to study them at a population level. Most of the current literature around the incidence of immune-related adverse events and factors that are predictive of incidence are based on clinical trials and small studies,” Mr. Murphy noted.
He and his colleagues analyzed claims data from a U.S. nationwide health insurance plan for 14,378 patients who had a primary cancer and received at least one administration of an immune checkpoint inhibitor – an inhibitor of PD-1, PD-L1, or CTLA4 – during 2011-2019.
Over 19,117 patient-years of follow-up, 504 patients (3.5%) developed a severe immune-related adverse event (irAE), defined as one occurring within 2 years of their treatment and requiring inpatient hospitalization and new immunosuppression.
The incidence of severe irAEs per patient treatment year was 2.6% overall, rising from 0% in 2011 to 3.7% in 2016.
In multivariate analysis, patients had an elevated risk of severe irAEs if they received combination immunotherapy as compared with monotherapy (odds ratio, 2.44; P < .001).
On the other hand, risk fell with advancing age (OR, 0.98 per additional year; P < .001). And risk was lower for patients with melanoma (OR, 0.70; P = .01), renal cell carcinoma (OR, 0.71; P = .03), and other cancers (OR, 0.50; P < .001), compared with lung cancer.
Sex, geographic region, income, employment status, and comorbidity were not significantly associated with the risk of severe irAEs.
“We hope that patients and providers can use this evidence from a nationwide study of severe irAEs to guide treatment and management decisions,” Mr. Murphy concluded.
Real-world evidence
“As the use of immune checkpoint inhibitors increases for patients with a variety of different tumor types, there is increasing need for population-level evidence for patients treated outside of clinical trials,” said Allison Betof Warner, MD, PhD, an assistant attending physician with the melanoma service at Memorial Sloan Kettering Cancer Center in New York.
“This is a well-conducted study with an innovative approach to using real-world evidence to examine immune-related adverse events,” she added.
To her knowledge, it is the first study to look at multiple cancers for which immunotherapy is approved, Dr. Betof Warner said. This approach resulted in a large patient sample, giving power to detect differences between groups.
“The authors’ finding that combination immunotherapy is associated with more severe irAEs is in line with our clinical experience and other data sets, and the data regarding increased odds of severe irAEs in younger patients and those with lung cancer raise interesting biological questions about the etiology of irAEs,” Dr. Betof Warner noted.
However, certain factors complicate interpretation of the study’s findings, she cautioned. One such factor is requiring hospitalization to define an irAE.
“Practice patterns regarding hospitalization vary quite widely from center to center. For example, in some centers, all patients with immune-mediated colitis are hospitalized, whereas in others, these patients are managed predominantly in the outpatient setting, even in cases of high-grade toxicity,” she explained. “Practice patterns have also changed drastically over time as oncologists have grown more comfortable managing immune-related adverse events.”
Another factor is potential confounding. For example, patients with melanoma are more likely to receive combination immunotherapy given its longstanding approval for this cancer, whereas it is comparatively new for other cancers. Also, age may differ across cancers.
“The data the authors have provided are a great starting point, but I think further analysis is needed before these observations can be validated and integrated into practice,” Dr. Betof Warner concluded.
This study did not receive any specific funding. Mr. Murphy and Dr. Betof Warner disclosed no relevant conflicts of interest.
SOURCE: Murphy W et al. SITC 2020, Abstract 854.
FROM SITC 2020
Low threshold to biopsy atypical lesions may ID vulvar melanoma early, experts say
Having a low threshold to biopsy atypical pigmented lesions on the vulva may identify melanoma early, according to a lecture at virtual conference on diseases of the vulva and vagina, hosted by the International Society for the Study of Vulvovaginal Disease.
Pigmented brown or black vulvar lesions occur in approximately 10% of women, and they may be normal and benign.
“Often we will see a pigmented lesion on the vulva and think that there is nothing to worry about,” said Melissa Mauskar, MD.
Lesions could be angiokeratomas, petechiae, purpura, melanosis, and nevi, for example. Seborrheic keratoses can mimic melanoma. “If it looks odd, don’t be afraid to biopsy it,” said Dr. Mauskar, assistant professor of dermatology and obstetrics and gynecology at the University of Texas Southwestern Medical Center in Dallas.
Characteristics of melanoma, covered by the mnemonic ABCDE, include asymmetry, borders that are irregular, coloring that is uneven, diameter greater than 7 mm, and evolution over time.
When biopsying a lesion because of concerns about melanoma, the goal is to remove the whole lesion at once, Dr. Mauskar said.
In a recent U.S. population-based study of more than 1,800 patients with malignant melanoma of the vulva or vagina (including 1,400 patients with vulvar melanoma and 463 patients with vaginal melanoma), median disease-specific survival was 99 months for vulvar melanoma and 19 months for vaginal melanoma.
Patients with vaginal melanoma were more likely than patients with vulvar melanoma to have nodular lesions. The American Joint Committee on Cancer staging system predicts vulvar melanoma outcomes, the researchers found. In addition, lymph node status and mitotic rate were important predictors of survival.
A wide local excision is the mainstay of therapy for melanoma. Other therapeutic advances are “changing the survival curves for these patients, especially when we can find things early,” Dr. Mauskar said.
Photographing lesions can help doctors monitor them over time, she added.
It is important for dermatologists to include the vulva in skin exams and for gynecologists to have a low threshold to biopsy atypical pigmented lesions, Dr. Mauskar said. “Having a very low threshold for biopsy ... will increase our chances of finding these lesions when they are more at the superficial spreading phase as opposed to the nodular phase,” she said.
Capturing the depth of a tumor within the confines of a biopsy may help accurately stage malignant melanoma, Jason Reutter, MD, a pathologist in Hickory, N.C., said in a separate presentation. He suggested trying to get around the lesion with a punch biopsy if possible. A shave biopsy may be advantageous for larger macular lesions. To diagnose one melanoma, doctors may have to biopsy many lesions, Dr. Reutter noted.
At one institution, the number of skin biopsies needed to diagnose skin cancer ranged from 2.82 to 6.55, depending on the type of clinician, according to a recent study. The number of biopsies needed to detect one melanoma was greater – between 14 and 54 – depending on type of clinician.
For larger lesions, scouting biopsies of different areas may be the best approach, Dr. Reutter said.
Dr. Mauskar and Dr. Reutter had no relevant financial conflicts of interest.
Having a low threshold to biopsy atypical pigmented lesions on the vulva may identify melanoma early, according to a lecture at virtual conference on diseases of the vulva and vagina, hosted by the International Society for the Study of Vulvovaginal Disease.
Pigmented brown or black vulvar lesions occur in approximately 10% of women, and they may be normal and benign.
“Often we will see a pigmented lesion on the vulva and think that there is nothing to worry about,” said Melissa Mauskar, MD.
Lesions could be angiokeratomas, petechiae, purpura, melanosis, and nevi, for example. Seborrheic keratoses can mimic melanoma. “If it looks odd, don’t be afraid to biopsy it,” said Dr. Mauskar, assistant professor of dermatology and obstetrics and gynecology at the University of Texas Southwestern Medical Center in Dallas.
Characteristics of melanoma, covered by the mnemonic ABCDE, include asymmetry, borders that are irregular, coloring that is uneven, diameter greater than 7 mm, and evolution over time.
When biopsying a lesion because of concerns about melanoma, the goal is to remove the whole lesion at once, Dr. Mauskar said.
In a recent U.S. population-based study of more than 1,800 patients with malignant melanoma of the vulva or vagina (including 1,400 patients with vulvar melanoma and 463 patients with vaginal melanoma), median disease-specific survival was 99 months for vulvar melanoma and 19 months for vaginal melanoma.
Patients with vaginal melanoma were more likely than patients with vulvar melanoma to have nodular lesions. The American Joint Committee on Cancer staging system predicts vulvar melanoma outcomes, the researchers found. In addition, lymph node status and mitotic rate were important predictors of survival.
A wide local excision is the mainstay of therapy for melanoma. Other therapeutic advances are “changing the survival curves for these patients, especially when we can find things early,” Dr. Mauskar said.
Photographing lesions can help doctors monitor them over time, she added.
It is important for dermatologists to include the vulva in skin exams and for gynecologists to have a low threshold to biopsy atypical pigmented lesions, Dr. Mauskar said. “Having a very low threshold for biopsy ... will increase our chances of finding these lesions when they are more at the superficial spreading phase as opposed to the nodular phase,” she said.
Capturing the depth of a tumor within the confines of a biopsy may help accurately stage malignant melanoma, Jason Reutter, MD, a pathologist in Hickory, N.C., said in a separate presentation. He suggested trying to get around the lesion with a punch biopsy if possible. A shave biopsy may be advantageous for larger macular lesions. To diagnose one melanoma, doctors may have to biopsy many lesions, Dr. Reutter noted.
At one institution, the number of skin biopsies needed to diagnose skin cancer ranged from 2.82 to 6.55, depending on the type of clinician, according to a recent study. The number of biopsies needed to detect one melanoma was greater – between 14 and 54 – depending on type of clinician.
For larger lesions, scouting biopsies of different areas may be the best approach, Dr. Reutter said.
Dr. Mauskar and Dr. Reutter had no relevant financial conflicts of interest.
Having a low threshold to biopsy atypical pigmented lesions on the vulva may identify melanoma early, according to a lecture at virtual conference on diseases of the vulva and vagina, hosted by the International Society for the Study of Vulvovaginal Disease.
Pigmented brown or black vulvar lesions occur in approximately 10% of women, and they may be normal and benign.
“Often we will see a pigmented lesion on the vulva and think that there is nothing to worry about,” said Melissa Mauskar, MD.
Lesions could be angiokeratomas, petechiae, purpura, melanosis, and nevi, for example. Seborrheic keratoses can mimic melanoma. “If it looks odd, don’t be afraid to biopsy it,” said Dr. Mauskar, assistant professor of dermatology and obstetrics and gynecology at the University of Texas Southwestern Medical Center in Dallas.
Characteristics of melanoma, covered by the mnemonic ABCDE, include asymmetry, borders that are irregular, coloring that is uneven, diameter greater than 7 mm, and evolution over time.
When biopsying a lesion because of concerns about melanoma, the goal is to remove the whole lesion at once, Dr. Mauskar said.
In a recent U.S. population-based study of more than 1,800 patients with malignant melanoma of the vulva or vagina (including 1,400 patients with vulvar melanoma and 463 patients with vaginal melanoma), median disease-specific survival was 99 months for vulvar melanoma and 19 months for vaginal melanoma.
Patients with vaginal melanoma were more likely than patients with vulvar melanoma to have nodular lesions. The American Joint Committee on Cancer staging system predicts vulvar melanoma outcomes, the researchers found. In addition, lymph node status and mitotic rate were important predictors of survival.
A wide local excision is the mainstay of therapy for melanoma. Other therapeutic advances are “changing the survival curves for these patients, especially when we can find things early,” Dr. Mauskar said.
Photographing lesions can help doctors monitor them over time, she added.
It is important for dermatologists to include the vulva in skin exams and for gynecologists to have a low threshold to biopsy atypical pigmented lesions, Dr. Mauskar said. “Having a very low threshold for biopsy ... will increase our chances of finding these lesions when they are more at the superficial spreading phase as opposed to the nodular phase,” she said.
Capturing the depth of a tumor within the confines of a biopsy may help accurately stage malignant melanoma, Jason Reutter, MD, a pathologist in Hickory, N.C., said in a separate presentation. He suggested trying to get around the lesion with a punch biopsy if possible. A shave biopsy may be advantageous for larger macular lesions. To diagnose one melanoma, doctors may have to biopsy many lesions, Dr. Reutter noted.
At one institution, the number of skin biopsies needed to diagnose skin cancer ranged from 2.82 to 6.55, depending on the type of clinician, according to a recent study. The number of biopsies needed to detect one melanoma was greater – between 14 and 54 – depending on type of clinician.
For larger lesions, scouting biopsies of different areas may be the best approach, Dr. Reutter said.
Dr. Mauskar and Dr. Reutter had no relevant financial conflicts of interest.
FROM A CONFERENCE ON DISEASES OF THE VULVA AND VAGINA