Head & Neck/Thyroid Cancers

WASHINGTON – Transgender female veterans are more likely to have thyroid cancer at rates comparable with cisgender women rather than cisgender men. Experts urge a cautious interpretation of these recent study results.

“In our clinic of about 50 transgender women, we noticed that we had two diagnosed cases of thyroid cancer in a year,” first author John Christensen, MD, of UC Davis Health, division of endocrinology, diabetes & metabolism, Sacramento, said in an interivew. He presented their findings at the annual meeting of the American Thyroid Association.

Comparatively, the thyroid cancer prevalence among cisgender male veterans is estimated at about 0.19%; the rate among all those assigned male at birth in the general population is 0.13%, whereas the rate among those assigned female at birth, which has historically been higher for all thyroid cancer subtypes, is 0.44%, according to U.S. cancer statistics for 2020 from the National Cancer Institute.

“About one-third of our [veteran] patients had been receiving estrogen for an average of over 3 years before diagnosis, which could suggest estrogen gender‐affirming hormone therapy [GAHT] may be a potentially important risk factor,” Dr. Christensen said.

Sustained use of external estrogen, especially in cisgender women undergoing fertility treatments, has been linked to an increased risk for thyroid cancer. This is because it can lead to an increase in estrogen receptors in cancerous cells. But experts caution that many other factors also come into play.

“There is definitely an implication that if you give extra estrogen to someone assigned female at birth, you may have an increased risk of thyroid cancer,” Dr. Christensen said. “So, it would stand to reason that even in those who are not assigned female at birth, there may be a risk from exogenous estrogen that may lead to an increased risk of thyroid cancer down the line.”

To investigate the issue in a larger population, Dr. Christensen and colleagues evaluated data from the comprehensive, nationwide Veterans Affairs Informatics and Computing Infrastructure database, including approximately 9 million veterans who had outpatient visits between December 2017 and January 2022.

Of the veterans, 9,988 were determined to likely be transgender women, based on either having an ICD-10 diagnosis code for gender dysphoria or being assigned male at birth and having received an estrogen or estradiol prescription.

Of those patients, 76 had an ICD-10 code indicating thyroid cancer and 34 had verification of the thyroid cancer on chart review, representing a prevalence of 0.34% among transgender female veterans.

The average age at thyroid cancer diagnosis among the veterans was 53.8 years, and 29.4% (10 of 34) of those patients had extrathyroidal disease at the time of their thyroid cancer diagnosis. The median body mass index, available for 26 patients, was 32, which is indicative of obesity.

In terms of the patients’ thyroid cancer subtypes, 22 were papillary cancer, 5 were a follicular variant of papillary cancer, 5 were both papillary and follicular cancer, 4 were follicular cancer, 3 were a Hürthle cell variant of follicular cancer, and one was unknown.

Among 11 (32.3%) of the 34 veterans receiving estrogen GAHT at diagnosis, treatment began an average of 3.38 years prior to diagnosis at variable doses and using various routes of administration.

About half of the patients had a history of smoking; however, Dr. Christensen noted that the role of smoking as being a risk factor in estrogenic cancers has been debated. Though most patients were obese, obesity is both very common and not well established in terms of its quantitative impact on the risk for cancer development.

With the small size of the thyroid cancer cohort and omissions in the medical record among the study’s important limitations, Dr. Christensen urged a cautious interpretation of the findings.

“We are certainly suspicious that GAHT may be associated with an increased risk of thyroid cancer, but I would characterize the trends in our data as being potentially suggestive or hypothesis generating – not conclusive,” he added. “I would hate for any transgender women reading this to stop taking GAHT without talking to their doctors first.”

Commenting on the issue, Maurice Garcia, MD, a clinical associate professor of urology and director of the transgender surgery and health program at Cedars-Sinai Medical Center, Los Angeles, said that any definitive evidence of an increase in cancer risk among transgender people is lacking.

“With an estimated 1.5 [million] to 1.6 million people in the U.S. who are transgender, with many of them receiving GAHT, we haven’t observed a bump or high incidence of any kind of cancer among these people so far,” he said.

“There’s certainly a high potential that hormone therapy, whether it’s feminizing or masculinizing hormone therapy, can affect an individual’s cancer risk,” he added. “But we don’t know of any [definitive evidence] yet of an increase, and, there’s also even the question of whether there could be an opposite effect.”

Regarding the thyroid cancer data, Dr. Garcia agreed that the preliminary nature of the study is a key limitation. “It’s hard to tell if these were comparable groups, or whether those in the transgender group came in with higher risk factors for thyroid cancer.

“Until more statistical analysis is done, I think all that can be said is that it’s speculative.”

Dr. Garcia, who coauthored a review on cancer screening for transgender individuals, underscored that, despite a lack of data suggesting that transgender patients need cancer screening any more than their matched cisgender counterparts, “the point is that we cannot forget to screen them at all.”

Dr. Christensen and Dr. Garcia had no disclosures to report.

A version of this article first appeared on Medscape.com.

WASHINGTON – Transgender female veterans are more likely to have thyroid cancer at rates comparable with cisgender women rather than cisgender men. Experts urge a cautious interpretation of these recent study results.

“In our clinic of about 50 transgender women, we noticed that we had two diagnosed cases of thyroid cancer in a year,” first author John Christensen, MD, of UC Davis Health, division of endocrinology, diabetes & metabolism, Sacramento, said in an interivew. He presented their findings at the annual meeting of the American Thyroid Association.

Comparatively, the thyroid cancer prevalence among cisgender male veterans is estimated at about 0.19%; the rate among all those assigned male at birth in the general population is 0.13%, whereas the rate among those assigned female at birth, which has historically been higher for all thyroid cancer subtypes, is 0.44%, according to U.S. cancer statistics for 2020 from the National Cancer Institute.

“About one-third of our [veteran] patients had been receiving estrogen for an average of over 3 years before diagnosis, which could suggest estrogen gender‐affirming hormone therapy [GAHT] may be a potentially important risk factor,” Dr. Christensen said.

Sustained use of external estrogen, especially in cisgender women undergoing fertility treatments, has been linked to an increased risk for thyroid cancer. This is because it can lead to an increase in estrogen receptors in cancerous cells. But experts caution that many other factors also come into play.

“There is definitely an implication that if you give extra estrogen to someone assigned female at birth, you may have an increased risk of thyroid cancer,” Dr. Christensen said. “So, it would stand to reason that even in those who are not assigned female at birth, there may be a risk from exogenous estrogen that may lead to an increased risk of thyroid cancer down the line.”

To investigate the issue in a larger population, Dr. Christensen and colleagues evaluated data from the comprehensive, nationwide Veterans Affairs Informatics and Computing Infrastructure database, including approximately 9 million veterans who had outpatient visits between December 2017 and January 2022.

Of the veterans, 9,988 were determined to likely be transgender women, based on either having an ICD-10 diagnosis code for gender dysphoria or being assigned male at birth and having received an estrogen or estradiol prescription.

Of those patients, 76 had an ICD-10 code indicating thyroid cancer and 34 had verification of the thyroid cancer on chart review, representing a prevalence of 0.34% among transgender female veterans.

The average age at thyroid cancer diagnosis among the veterans was 53.8 years, and 29.4% (10 of 34) of those patients had extrathyroidal disease at the time of their thyroid cancer diagnosis. The median body mass index, available for 26 patients, was 32, which is indicative of obesity.

In terms of the patients’ thyroid cancer subtypes, 22 were papillary cancer, 5 were a follicular variant of papillary cancer, 5 were both papillary and follicular cancer, 4 were follicular cancer, 3 were a Hürthle cell variant of follicular cancer, and one was unknown.

Among 11 (32.3%) of the 34 veterans receiving estrogen GAHT at diagnosis, treatment began an average of 3.38 years prior to diagnosis at variable doses and using various routes of administration.

About half of the patients had a history of smoking; however, Dr. Christensen noted that the role of smoking as being a risk factor in estrogenic cancers has been debated. Though most patients were obese, obesity is both very common and not well established in terms of its quantitative impact on the risk for cancer development.

With the small size of the thyroid cancer cohort and omissions in the medical record among the study’s important limitations, Dr. Christensen urged a cautious interpretation of the findings.

“We are certainly suspicious that GAHT may be associated with an increased risk of thyroid cancer, but I would characterize the trends in our data as being potentially suggestive or hypothesis generating – not conclusive,” he added. “I would hate for any transgender women reading this to stop taking GAHT without talking to their doctors first.”

Commenting on the issue, Maurice Garcia, MD, a clinical associate professor of urology and director of the transgender surgery and health program at Cedars-Sinai Medical Center, Los Angeles, said that any definitive evidence of an increase in cancer risk among transgender people is lacking.

“With an estimated 1.5 [million] to 1.6 million people in the U.S. who are transgender, with many of them receiving GAHT, we haven’t observed a bump or high incidence of any kind of cancer among these people so far,” he said.

“There’s certainly a high potential that hormone therapy, whether it’s feminizing or masculinizing hormone therapy, can affect an individual’s cancer risk,” he added. “But we don’t know of any [definitive evidence] yet of an increase, and, there’s also even the question of whether there could be an opposite effect.”

Regarding the thyroid cancer data, Dr. Garcia agreed that the preliminary nature of the study is a key limitation. “It’s hard to tell if these were comparable groups, or whether those in the transgender group came in with higher risk factors for thyroid cancer.

“Until more statistical analysis is done, I think all that can be said is that it’s speculative.”

Dr. Garcia, who coauthored a review on cancer screening for transgender individuals, underscored that, despite a lack of data suggesting that transgender patients need cancer screening any more than their matched cisgender counterparts, “the point is that we cannot forget to screen them at all.”

Dr. Christensen and Dr. Garcia had no disclosures to report.

A version of this article first appeared on Medscape.com.

WASHINGTON – Transgender female veterans are more likely to have thyroid cancer at rates comparable with cisgender women rather than cisgender men. Experts urge a cautious interpretation of these recent study results.

“In our clinic of about 50 transgender women, we noticed that we had two diagnosed cases of thyroid cancer in a year,” first author John Christensen, MD, of UC Davis Health, division of endocrinology, diabetes & metabolism, Sacramento, said in an interivew. He presented their findings at the annual meeting of the American Thyroid Association.

Comparatively, the thyroid cancer prevalence among cisgender male veterans is estimated at about 0.19%; the rate among all those assigned male at birth in the general population is 0.13%, whereas the rate among those assigned female at birth, which has historically been higher for all thyroid cancer subtypes, is 0.44%, according to U.S. cancer statistics for 2020 from the National Cancer Institute.

“About one-third of our [veteran] patients had been receiving estrogen for an average of over 3 years before diagnosis, which could suggest estrogen gender‐affirming hormone therapy [GAHT] may be a potentially important risk factor,” Dr. Christensen said.

Sustained use of external estrogen, especially in cisgender women undergoing fertility treatments, has been linked to an increased risk for thyroid cancer. This is because it can lead to an increase in estrogen receptors in cancerous cells. But experts caution that many other factors also come into play.

“There is definitely an implication that if you give extra estrogen to someone assigned female at birth, you may have an increased risk of thyroid cancer,” Dr. Christensen said. “So, it would stand to reason that even in those who are not assigned female at birth, there may be a risk from exogenous estrogen that may lead to an increased risk of thyroid cancer down the line.”

To investigate the issue in a larger population, Dr. Christensen and colleagues evaluated data from the comprehensive, nationwide Veterans Affairs Informatics and Computing Infrastructure database, including approximately 9 million veterans who had outpatient visits between December 2017 and January 2022.

Of the veterans, 9,988 were determined to likely be transgender women, based on either having an ICD-10 diagnosis code for gender dysphoria or being assigned male at birth and having received an estrogen or estradiol prescription.

Of those patients, 76 had an ICD-10 code indicating thyroid cancer and 34 had verification of the thyroid cancer on chart review, representing a prevalence of 0.34% among transgender female veterans.

The average age at thyroid cancer diagnosis among the veterans was 53.8 years, and 29.4% (10 of 34) of those patients had extrathyroidal disease at the time of their thyroid cancer diagnosis. The median body mass index, available for 26 patients, was 32, which is indicative of obesity.

In terms of the patients’ thyroid cancer subtypes, 22 were papillary cancer, 5 were a follicular variant of papillary cancer, 5 were both papillary and follicular cancer, 4 were follicular cancer, 3 were a Hürthle cell variant of follicular cancer, and one was unknown.

Among 11 (32.3%) of the 34 veterans receiving estrogen GAHT at diagnosis, treatment began an average of 3.38 years prior to diagnosis at variable doses and using various routes of administration.

About half of the patients had a history of smoking; however, Dr. Christensen noted that the role of smoking as being a risk factor in estrogenic cancers has been debated. Though most patients were obese, obesity is both very common and not well established in terms of its quantitative impact on the risk for cancer development.

With the small size of the thyroid cancer cohort and omissions in the medical record among the study’s important limitations, Dr. Christensen urged a cautious interpretation of the findings.

“We are certainly suspicious that GAHT may be associated with an increased risk of thyroid cancer, but I would characterize the trends in our data as being potentially suggestive or hypothesis generating – not conclusive,” he added. “I would hate for any transgender women reading this to stop taking GAHT without talking to their doctors first.”

Commenting on the issue, Maurice Garcia, MD, a clinical associate professor of urology and director of the transgender surgery and health program at Cedars-Sinai Medical Center, Los Angeles, said that any definitive evidence of an increase in cancer risk among transgender people is lacking.

“With an estimated 1.5 [million] to 1.6 million people in the U.S. who are transgender, with many of them receiving GAHT, we haven’t observed a bump or high incidence of any kind of cancer among these people so far,” he said.

“There’s certainly a high potential that hormone therapy, whether it’s feminizing or masculinizing hormone therapy, can affect an individual’s cancer risk,” he added. “But we don’t know of any [definitive evidence] yet of an increase, and, there’s also even the question of whether there could be an opposite effect.”

Regarding the thyroid cancer data, Dr. Garcia agreed that the preliminary nature of the study is a key limitation. “It’s hard to tell if these were comparable groups, or whether those in the transgender group came in with higher risk factors for thyroid cancer.

“Until more statistical analysis is done, I think all that can be said is that it’s speculative.”

Dr. Garcia, who coauthored a review on cancer screening for transgender individuals, underscored that, despite a lack of data suggesting that transgender patients need cancer screening any more than their matched cisgender counterparts, “the point is that we cannot forget to screen them at all.”

Dr. Christensen and Dr. Garcia had no disclosures to report.

A version of this article first appeared on Medscape.com.

Postoperative parathyroid hormone (PTH) showed 100% sensitivity in predicting postthyroidectomy hypocalcemia, according to the results of a prospective study of 60 patients.

Postthyroidectomy hypocalcemia remains a major complication in patients who have undergone total thyroidectomy, and early identification can reduce disease burden and improve outcomes, according to Ahmed Sobhy Youssef, MD, of the University of Oklahoma Health Sciences Center, Oklahoma City, and colleagues.

In a presentation at the annual meeting of the American Academy of Otolaryngology-Head and Neck Surgery, Dr. Youssef presented results of the study, which looked at early postoperative parathyroid hormone as a predictor of postthyroidectomy hypocalcemia.

During his fellowship in Oklahoma in the wake of the COVID-19 pandemic, Dr. Youssef observed a wide variation in follow-up for calcium levels after thyroidectomy. “Some surgeons will order PTH and ionized calcium 4 hours after surgery, others would order later, at 6-8 hours,” he said in an interview. However, “all patients would be admitted for 1-2 nights [before being] discharged home, which meant more restrictions on the number of beds allowed for our head and neck cancer service.”

Discussion with his department chair led to a literature review seeking strategies to discharge patients earlier, and Dr. Youssef developed the idea for early PTH testing.

The study population included 60 adults who underwent thyroidectomy for benign or malignant disease at a single center between January 2022 and January 2023. The researchers measured PTH at 1 hour after surgery and compared it to results of a standard postoperative measure at 4 hours after surgery.

The researchers found a significant positive correlation between PTH measured 1 hour after surgery and ionized calcium (Ca) at 4 hours. The sensitivity of the early PTH assay, defined as “measured below 14 pg/ml,” was 100% to detect hypocalcemia, with an area under the curve of 0.797.

“The results were amazing,” said Dr. Youssef. “We found that when we measure PTH as early as 1 hour after total thyroidectomy, while patients are still in recovery, PTH was very sensitive to predict hypocalcemia.” The correlation was strong with measures at 4 hours.

“Our takeaway message is the 1-hour level PTH is very reliable in predicting hypocalcemia,” he added. This measure can serve as a guide for discharging patients the same day, with instructions to return if they develop any symptoms of hypocalcemia.

The use of early PTH also helped to reduce hospital admissions and identified patients who were eligible for same-day discharge with no need for additional replacement medications, Dr. Youssef said.

So far, “we have had no readmissions for thyroidectomy patients since we started to follow this protocol at our institution,” he noted.

The findings were limited by the relatively small sample size, and more research is needed. However, the results suggest that early measurement of PTH at 1 hour after surgery is an accurate predictor of hypocalcemia in total thyroidectomy patients.

“I strongly recommend high thyroidectomy volume institutions apply the same protocol and publish their data about that so we can come up with a consensus/guideline for management of calcium following thyroidectomy,” Dr. Youssef said.
 

More proof of PTH’s predictive power

“The utility of postoperative PTH for predicting symptomatic hypocalcemia is beneficial for guiding postoperative management of patients following total thyroidectomy,” said Larissa Sweeny, MD, of the University of Miami, who served as a moderator for the session in which the study was presented.

“Proper identification of patients that require supplemental medications following surgery reduces administration of medications to patients that do not require supplemental medications,” Dr. Sweeny said in an interview.

In addition, better identification not only ensures that the patients who do require supplemental medications receive them but also reduces postoperative complications and readmissions, she said.

For clinical practice, the current study “reinforces the utility of postoperative PTH lab values for guiding medication administration following total thyroidectomy,” said Dr. Sweeny. “I have been using postoperative PTH lab values following total thyroidectomy to guide my postoperative management of these patients for over 6 years.” 

However, looking ahead to additional research, “Correlation with dosage of supplemental calcium and duration to return of normal PTH would be helpful information,” Dr. Sweeny said.

The study received no outside funding. The researchers and Dr. Sweeny report no relevant financial relationships. 

A version of this article appeared on Medscape.com.

Postoperative parathyroid hormone (PTH) showed 100% sensitivity in predicting postthyroidectomy hypocalcemia, according to the results of a prospective study of 60 patients.

Postthyroidectomy hypocalcemia remains a major complication in patients who have undergone total thyroidectomy, and early identification can reduce disease burden and improve outcomes, according to Ahmed Sobhy Youssef, MD, of the University of Oklahoma Health Sciences Center, Oklahoma City, and colleagues.

In a presentation at the annual meeting of the American Academy of Otolaryngology-Head and Neck Surgery, Dr. Youssef presented results of the study, which looked at early postoperative parathyroid hormone as a predictor of postthyroidectomy hypocalcemia.

During his fellowship in Oklahoma in the wake of the COVID-19 pandemic, Dr. Youssef observed a wide variation in follow-up for calcium levels after thyroidectomy. “Some surgeons will order PTH and ionized calcium 4 hours after surgery, others would order later, at 6-8 hours,” he said in an interview. However, “all patients would be admitted for 1-2 nights [before being] discharged home, which meant more restrictions on the number of beds allowed for our head and neck cancer service.”

Discussion with his department chair led to a literature review seeking strategies to discharge patients earlier, and Dr. Youssef developed the idea for early PTH testing.

The study population included 60 adults who underwent thyroidectomy for benign or malignant disease at a single center between January 2022 and January 2023. The researchers measured PTH at 1 hour after surgery and compared it to results of a standard postoperative measure at 4 hours after surgery.

The researchers found a significant positive correlation between PTH measured 1 hour after surgery and ionized calcium (Ca) at 4 hours. The sensitivity of the early PTH assay, defined as “measured below 14 pg/ml,” was 100% to detect hypocalcemia, with an area under the curve of 0.797.

“The results were amazing,” said Dr. Youssef. “We found that when we measure PTH as early as 1 hour after total thyroidectomy, while patients are still in recovery, PTH was very sensitive to predict hypocalcemia.” The correlation was strong with measures at 4 hours.

“Our takeaway message is the 1-hour level PTH is very reliable in predicting hypocalcemia,” he added. This measure can serve as a guide for discharging patients the same day, with instructions to return if they develop any symptoms of hypocalcemia.

The use of early PTH also helped to reduce hospital admissions and identified patients who were eligible for same-day discharge with no need for additional replacement medications, Dr. Youssef said.

So far, “we have had no readmissions for thyroidectomy patients since we started to follow this protocol at our institution,” he noted.

The findings were limited by the relatively small sample size, and more research is needed. However, the results suggest that early measurement of PTH at 1 hour after surgery is an accurate predictor of hypocalcemia in total thyroidectomy patients.

“I strongly recommend high thyroidectomy volume institutions apply the same protocol and publish their data about that so we can come up with a consensus/guideline for management of calcium following thyroidectomy,” Dr. Youssef said.
 

More proof of PTH’s predictive power

“The utility of postoperative PTH for predicting symptomatic hypocalcemia is beneficial for guiding postoperative management of patients following total thyroidectomy,” said Larissa Sweeny, MD, of the University of Miami, who served as a moderator for the session in which the study was presented.

“Proper identification of patients that require supplemental medications following surgery reduces administration of medications to patients that do not require supplemental medications,” Dr. Sweeny said in an interview.

In addition, better identification not only ensures that the patients who do require supplemental medications receive them but also reduces postoperative complications and readmissions, she said.

For clinical practice, the current study “reinforces the utility of postoperative PTH lab values for guiding medication administration following total thyroidectomy,” said Dr. Sweeny. “I have been using postoperative PTH lab values following total thyroidectomy to guide my postoperative management of these patients for over 6 years.” 

However, looking ahead to additional research, “Correlation with dosage of supplemental calcium and duration to return of normal PTH would be helpful information,” Dr. Sweeny said.

The study received no outside funding. The researchers and Dr. Sweeny report no relevant financial relationships. 

A version of this article appeared on Medscape.com.

Postoperative parathyroid hormone (PTH) showed 100% sensitivity in predicting postthyroidectomy hypocalcemia, according to the results of a prospective study of 60 patients.

Postthyroidectomy hypocalcemia remains a major complication in patients who have undergone total thyroidectomy, and early identification can reduce disease burden and improve outcomes, according to Ahmed Sobhy Youssef, MD, of the University of Oklahoma Health Sciences Center, Oklahoma City, and colleagues.

In a presentation at the annual meeting of the American Academy of Otolaryngology-Head and Neck Surgery, Dr. Youssef presented results of the study, which looked at early postoperative parathyroid hormone as a predictor of postthyroidectomy hypocalcemia.

During his fellowship in Oklahoma in the wake of the COVID-19 pandemic, Dr. Youssef observed a wide variation in follow-up for calcium levels after thyroidectomy. “Some surgeons will order PTH and ionized calcium 4 hours after surgery, others would order later, at 6-8 hours,” he said in an interview. However, “all patients would be admitted for 1-2 nights [before being] discharged home, which meant more restrictions on the number of beds allowed for our head and neck cancer service.”

Discussion with his department chair led to a literature review seeking strategies to discharge patients earlier, and Dr. Youssef developed the idea for early PTH testing.

The study population included 60 adults who underwent thyroidectomy for benign or malignant disease at a single center between January 2022 and January 2023. The researchers measured PTH at 1 hour after surgery and compared it to results of a standard postoperative measure at 4 hours after surgery.

The researchers found a significant positive correlation between PTH measured 1 hour after surgery and ionized calcium (Ca) at 4 hours. The sensitivity of the early PTH assay, defined as “measured below 14 pg/ml,” was 100% to detect hypocalcemia, with an area under the curve of 0.797.

“The results were amazing,” said Dr. Youssef. “We found that when we measure PTH as early as 1 hour after total thyroidectomy, while patients are still in recovery, PTH was very sensitive to predict hypocalcemia.” The correlation was strong with measures at 4 hours.

“Our takeaway message is the 1-hour level PTH is very reliable in predicting hypocalcemia,” he added. This measure can serve as a guide for discharging patients the same day, with instructions to return if they develop any symptoms of hypocalcemia.

The use of early PTH also helped to reduce hospital admissions and identified patients who were eligible for same-day discharge with no need for additional replacement medications, Dr. Youssef said.

So far, “we have had no readmissions for thyroidectomy patients since we started to follow this protocol at our institution,” he noted.

The findings were limited by the relatively small sample size, and more research is needed. However, the results suggest that early measurement of PTH at 1 hour after surgery is an accurate predictor of hypocalcemia in total thyroidectomy patients.

“I strongly recommend high thyroidectomy volume institutions apply the same protocol and publish their data about that so we can come up with a consensus/guideline for management of calcium following thyroidectomy,” Dr. Youssef said.
 

More proof of PTH’s predictive power

“The utility of postoperative PTH for predicting symptomatic hypocalcemia is beneficial for guiding postoperative management of patients following total thyroidectomy,” said Larissa Sweeny, MD, of the University of Miami, who served as a moderator for the session in which the study was presented.

“Proper identification of patients that require supplemental medications following surgery reduces administration of medications to patients that do not require supplemental medications,” Dr. Sweeny said in an interview.

In addition, better identification not only ensures that the patients who do require supplemental medications receive them but also reduces postoperative complications and readmissions, she said.

For clinical practice, the current study “reinforces the utility of postoperative PTH lab values for guiding medication administration following total thyroidectomy,” said Dr. Sweeny. “I have been using postoperative PTH lab values following total thyroidectomy to guide my postoperative management of these patients for over 6 years.” 

However, looking ahead to additional research, “Correlation with dosage of supplemental calcium and duration to return of normal PTH would be helpful information,” Dr. Sweeny said.

The study received no outside funding. The researchers and Dr. Sweeny report no relevant financial relationships. 

A version of this article appeared on Medscape.com.

WASHINGTON – Adding the PD-1 inhibitor pembrolizumab to the established combination of dabrafenib and trametinib (DT) significantly improves survival outcomes in BRAF V600E-mutated anaplastic thyroid cancer - particularly when administered in a neoadjuvant fashion, prior to surgery. Overall survival rates in the study exceeded 5 years.

“The very long median overall survival in the study’s neoadjuvant group is quite remarkable for a group of patients who used to have a very poor prognosis,” senior author Maria E. Cabanillas, MD, associate professor in the department of endocrine neoplasia and hormonal disorders at the University of Texas MD Anderson Cancer Center in Houston, said in an interview.

“This median overall survival definitely exceeds any other treatments thus far in BRAF-mutated anaplastic thyroid cancer.”

The research was presented at the annual meeting of the American Thyroid Association.

Anaplastic thyroid cancer, though rare, is the most aggressive form of thyroid cancer. It accounts for just 1% of the cancers but causes about 50% of thyroid cancer mortality.

The historical median overall survival is 5-6 months.

With research in recent years showing that as many as 40% of anaplastic thyroid cancers harbor BRAF V600E mutations, the door has opened for potential benefits with the combination of the BRAF inhibitor dabrafenib with the MEK-inhibitor drug trametinib.

The treatment combination was shown in research that included the phase 2 ROAR trial to yield important responses. It was approved by the Food and Drug Administration in 2018 for locally advanced or metastatic BRAF V600E-mutant anaplastic thyroid cancer, as well as other cancers.

However, a key caveat of DT is that patients eventually develop resistance mutations, leading to disease progression.

To overcome the problem, Dr. Cabanillas and her team found two key strategies that show promise – the addition of immunotherapy, such as pembrolizumab to DT, and the use of a neoadjuvant approach, with surgery performed after an initial response to the triplet therapy.
 

Triple therapy showed highly favorable results

In a study presented at the 2022 ATA annual meeting, researchers reported on the triple therapy of BRAF/MEK inhibitors vemurafenib and cobimetinib plus immunotherapy with atezolizumab. Results were highly favorable, with an overall response rate of 72% and an impressive 2-year survival of 67%.

However, a major limitation was that the study lacked a control arm. In the current study, the addition of pembrolizumab to DT was compared with DT alone. The investigators also sought to determine the survival benefits of a neoadjuvant strategy.

For the study, first author Sarah Hamidi, MD, also of the MD Anderson Cancer Center, and her colleagues identified 94 patients with BRAF-mutated anaplastic thyroid cancer who were treated either with first‐line DT or DT plus pembrolizumab between 2014 and 2023, either outside of a trial or in a reported clinical trial.

The study compared three treatment regimens – DT alone (n = 23), DT with pembrolizumab added before or after disease progression (n = 48), and DT with neoadjuvant pembrolizumab added prior to or after surgery (n = 23).

There were no significant differences in baseline characteristics between the groups. Metastatic disease was present at the start of treatment among 87.0% of the DT group, 79.2% of the pembrolizumab group prior to or after disease progression, and 65.2% of the neoadjuvant pembrolizumab group.

The median follow-up of the three groups was 102 months, 28 months, and 42 months, respectively. The median overall survival was 9 months with DT alone, vs. 17 months with DT plus pembrolizumab before or after progression and 63 months with neoadjuvant pembrolizumab plus DT (P < .001).

The 12- and 24-month survival rates with DT alone were 33.7% and 28.9%, respectively; for DT plus pembrolizumab before or after progression, the rates were 60.2% and 36.5%; and for neoadjuvant pembrolizumab plus DT, the rates were 80.7% and 74.5%.

In an analysis that did not include the neoadjuvant group, median progression-free survival was significantly longer with DT plus pembrolizumab as an initial treatment (11.0 months) compared with DT alone (4.0 months; P  =  .049).

A subanalysis that evaluated the timing of the addition of pembrolizumab to DT before or after disease progression showed no significant differences between the two in median overall survival (17 months vs. 16 months; P = .554).

“This is valuable information, especially for centers where pembrolizumab cannot be easily obtained as a first-line therapy for anaplastic thyroid cancer,” Dr. Hamidi said in presenting the findings.

She noted, however, that the results should be interpreted with caution, given the small number of patients who received pembrolizumab before progression (n = 34) and especially after progression (n = 14).

In terms of safety, there were no grade 5 adverse events (AEs); 32.4% of patients experienced immune‐related AEs, most frequently, colitis and hepatitis.
 

Therapies “improve survival”

Overall, the results are important, Dr. Cabanillas said.

The results are “very exciting when you think about the fact that 10 years ago, patients with anaplastic thyroid cancer had a median overall survival measured in months, and now we see that those with a BRAF mutation have a real chance at survival when managed appropriately from the start,” she told this news organization.

She noted that a key caveat is the study’s retrospective nature. Other important considerations are that pembrolizumab adds toxicity as well as cost, and it is largely used off label in anaplastic thyroid cancer.

Nevertheless, “it does feel like there needs to be a call to action in the guidelines for this disease so that it includes neoadjuvant DT or DT plus pembrolizumab as the primary treatment of patients with BRAF-mutated anaplastic thyroid cancer because the initial treatment is critical here,” Dr. Cabanillas said.

She added that a phase 2 trial with neoadjuvant DT plus pembrolizumab is ongoing. Enrollment is expected to be completed soon.

Commenting on the findings, Sarimar Agosto Salgado, MD, of the department of head and neck – endocrine oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Fla., who was a comoderator of the session, said the results are encouraging.

“These findings are promising because they open the landscape of options of therapies that we can provide these patients,” she said in an interview.

“Anaplastic thyroid cancer has been a disease with a very short survival despite aggressive therapies, but we are seeing that not only have these therapies been able to improve survival but also patients’ quality of life.”

Particularly encouraging is how quickly the therapies can work, Dr. Salgado added.

“Many times when patients present to the clinic, the rapid response to these systemic therapies can even [allow them to avoid] having a tracheostomy, and we’re also seeing that some of these patients are able to go from unresectable disease to resectable disease, and then by having the main tumor out, their survival improves.

“So, this is definitely a big ray of hope for these patients.”

Dr. Cabanillas has received research funding from Merck. Dr. Hamidi has disclosed no relevant financial relationships. Dr. Salgado has relationships with Lilly and Exelixis.
 

A version of this article appeared on Medscape.com.

WASHINGTON – Adding the PD-1 inhibitor pembrolizumab to the established combination of dabrafenib and trametinib (DT) significantly improves survival outcomes in BRAF V600E-mutated anaplastic thyroid cancer - particularly when administered in a neoadjuvant fashion, prior to surgery. Overall survival rates in the study exceeded 5 years.

“The very long median overall survival in the study’s neoadjuvant group is quite remarkable for a group of patients who used to have a very poor prognosis,” senior author Maria E. Cabanillas, MD, associate professor in the department of endocrine neoplasia and hormonal disorders at the University of Texas MD Anderson Cancer Center in Houston, said in an interview.

“This median overall survival definitely exceeds any other treatments thus far in BRAF-mutated anaplastic thyroid cancer.”

The research was presented at the annual meeting of the American Thyroid Association.

Anaplastic thyroid cancer, though rare, is the most aggressive form of thyroid cancer. It accounts for just 1% of the cancers but causes about 50% of thyroid cancer mortality.

The historical median overall survival is 5-6 months.

With research in recent years showing that as many as 40% of anaplastic thyroid cancers harbor BRAF V600E mutations, the door has opened for potential benefits with the combination of the BRAF inhibitor dabrafenib with the MEK-inhibitor drug trametinib.

The treatment combination was shown in research that included the phase 2 ROAR trial to yield important responses. It was approved by the Food and Drug Administration in 2018 for locally advanced or metastatic BRAF V600E-mutant anaplastic thyroid cancer, as well as other cancers.

However, a key caveat of DT is that patients eventually develop resistance mutations, leading to disease progression.

To overcome the problem, Dr. Cabanillas and her team found two key strategies that show promise – the addition of immunotherapy, such as pembrolizumab to DT, and the use of a neoadjuvant approach, with surgery performed after an initial response to the triplet therapy.
 

Triple therapy showed highly favorable results

In a study presented at the 2022 ATA annual meeting, researchers reported on the triple therapy of BRAF/MEK inhibitors vemurafenib and cobimetinib plus immunotherapy with atezolizumab. Results were highly favorable, with an overall response rate of 72% and an impressive 2-year survival of 67%.

However, a major limitation was that the study lacked a control arm. In the current study, the addition of pembrolizumab to DT was compared with DT alone. The investigators also sought to determine the survival benefits of a neoadjuvant strategy.

For the study, first author Sarah Hamidi, MD, also of the MD Anderson Cancer Center, and her colleagues identified 94 patients with BRAF-mutated anaplastic thyroid cancer who were treated either with first‐line DT or DT plus pembrolizumab between 2014 and 2023, either outside of a trial or in a reported clinical trial.

The study compared three treatment regimens – DT alone (n = 23), DT with pembrolizumab added before or after disease progression (n = 48), and DT with neoadjuvant pembrolizumab added prior to or after surgery (n = 23).

There were no significant differences in baseline characteristics between the groups. Metastatic disease was present at the start of treatment among 87.0% of the DT group, 79.2% of the pembrolizumab group prior to or after disease progression, and 65.2% of the neoadjuvant pembrolizumab group.

The median follow-up of the three groups was 102 months, 28 months, and 42 months, respectively. The median overall survival was 9 months with DT alone, vs. 17 months with DT plus pembrolizumab before or after progression and 63 months with neoadjuvant pembrolizumab plus DT (P < .001).

The 12- and 24-month survival rates with DT alone were 33.7% and 28.9%, respectively; for DT plus pembrolizumab before or after progression, the rates were 60.2% and 36.5%; and for neoadjuvant pembrolizumab plus DT, the rates were 80.7% and 74.5%.

In an analysis that did not include the neoadjuvant group, median progression-free survival was significantly longer with DT plus pembrolizumab as an initial treatment (11.0 months) compared with DT alone (4.0 months; P  =  .049).

A subanalysis that evaluated the timing of the addition of pembrolizumab to DT before or after disease progression showed no significant differences between the two in median overall survival (17 months vs. 16 months; P = .554).

“This is valuable information, especially for centers where pembrolizumab cannot be easily obtained as a first-line therapy for anaplastic thyroid cancer,” Dr. Hamidi said in presenting the findings.

She noted, however, that the results should be interpreted with caution, given the small number of patients who received pembrolizumab before progression (n = 34) and especially after progression (n = 14).

In terms of safety, there were no grade 5 adverse events (AEs); 32.4% of patients experienced immune‐related AEs, most frequently, colitis and hepatitis.
 

Therapies “improve survival”

Overall, the results are important, Dr. Cabanillas said.

The results are “very exciting when you think about the fact that 10 years ago, patients with anaplastic thyroid cancer had a median overall survival measured in months, and now we see that those with a BRAF mutation have a real chance at survival when managed appropriately from the start,” she told this news organization.

She noted that a key caveat is the study’s retrospective nature. Other important considerations are that pembrolizumab adds toxicity as well as cost, and it is largely used off label in anaplastic thyroid cancer.

Nevertheless, “it does feel like there needs to be a call to action in the guidelines for this disease so that it includes neoadjuvant DT or DT plus pembrolizumab as the primary treatment of patients with BRAF-mutated anaplastic thyroid cancer because the initial treatment is critical here,” Dr. Cabanillas said.

She added that a phase 2 trial with neoadjuvant DT plus pembrolizumab is ongoing. Enrollment is expected to be completed soon.

Commenting on the findings, Sarimar Agosto Salgado, MD, of the department of head and neck – endocrine oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Fla., who was a comoderator of the session, said the results are encouraging.

“These findings are promising because they open the landscape of options of therapies that we can provide these patients,” she said in an interview.

“Anaplastic thyroid cancer has been a disease with a very short survival despite aggressive therapies, but we are seeing that not only have these therapies been able to improve survival but also patients’ quality of life.”

Particularly encouraging is how quickly the therapies can work, Dr. Salgado added.

“Many times when patients present to the clinic, the rapid response to these systemic therapies can even [allow them to avoid] having a tracheostomy, and we’re also seeing that some of these patients are able to go from unresectable disease to resectable disease, and then by having the main tumor out, their survival improves.

“So, this is definitely a big ray of hope for these patients.”

Dr. Cabanillas has received research funding from Merck. Dr. Hamidi has disclosed no relevant financial relationships. Dr. Salgado has relationships with Lilly and Exelixis.
 

A version of this article appeared on Medscape.com.

WASHINGTON – Adding the PD-1 inhibitor pembrolizumab to the established combination of dabrafenib and trametinib (DT) significantly improves survival outcomes in BRAF V600E-mutated anaplastic thyroid cancer - particularly when administered in a neoadjuvant fashion, prior to surgery. Overall survival rates in the study exceeded 5 years.

“The very long median overall survival in the study’s neoadjuvant group is quite remarkable for a group of patients who used to have a very poor prognosis,” senior author Maria E. Cabanillas, MD, associate professor in the department of endocrine neoplasia and hormonal disorders at the University of Texas MD Anderson Cancer Center in Houston, said in an interview.

“This median overall survival definitely exceeds any other treatments thus far in BRAF-mutated anaplastic thyroid cancer.”

The research was presented at the annual meeting of the American Thyroid Association.

Anaplastic thyroid cancer, though rare, is the most aggressive form of thyroid cancer. It accounts for just 1% of the cancers but causes about 50% of thyroid cancer mortality.

The historical median overall survival is 5-6 months.

With research in recent years showing that as many as 40% of anaplastic thyroid cancers harbor BRAF V600E mutations, the door has opened for potential benefits with the combination of the BRAF inhibitor dabrafenib with the MEK-inhibitor drug trametinib.

The treatment combination was shown in research that included the phase 2 ROAR trial to yield important responses. It was approved by the Food and Drug Administration in 2018 for locally advanced or metastatic BRAF V600E-mutant anaplastic thyroid cancer, as well as other cancers.

However, a key caveat of DT is that patients eventually develop resistance mutations, leading to disease progression.

To overcome the problem, Dr. Cabanillas and her team found two key strategies that show promise – the addition of immunotherapy, such as pembrolizumab to DT, and the use of a neoadjuvant approach, with surgery performed after an initial response to the triplet therapy.
 

Triple therapy showed highly favorable results

In a study presented at the 2022 ATA annual meeting, researchers reported on the triple therapy of BRAF/MEK inhibitors vemurafenib and cobimetinib plus immunotherapy with atezolizumab. Results were highly favorable, with an overall response rate of 72% and an impressive 2-year survival of 67%.

However, a major limitation was that the study lacked a control arm. In the current study, the addition of pembrolizumab to DT was compared with DT alone. The investigators also sought to determine the survival benefits of a neoadjuvant strategy.

For the study, first author Sarah Hamidi, MD, also of the MD Anderson Cancer Center, and her colleagues identified 94 patients with BRAF-mutated anaplastic thyroid cancer who were treated either with first‐line DT or DT plus pembrolizumab between 2014 and 2023, either outside of a trial or in a reported clinical trial.

The study compared three treatment regimens – DT alone (n = 23), DT with pembrolizumab added before or after disease progression (n = 48), and DT with neoadjuvant pembrolizumab added prior to or after surgery (n = 23).

There were no significant differences in baseline characteristics between the groups. Metastatic disease was present at the start of treatment among 87.0% of the DT group, 79.2% of the pembrolizumab group prior to or after disease progression, and 65.2% of the neoadjuvant pembrolizumab group.

The median follow-up of the three groups was 102 months, 28 months, and 42 months, respectively. The median overall survival was 9 months with DT alone, vs. 17 months with DT plus pembrolizumab before or after progression and 63 months with neoadjuvant pembrolizumab plus DT (P < .001).

The 12- and 24-month survival rates with DT alone were 33.7% and 28.9%, respectively; for DT plus pembrolizumab before or after progression, the rates were 60.2% and 36.5%; and for neoadjuvant pembrolizumab plus DT, the rates were 80.7% and 74.5%.

In an analysis that did not include the neoadjuvant group, median progression-free survival was significantly longer with DT plus pembrolizumab as an initial treatment (11.0 months) compared with DT alone (4.0 months; P  =  .049).

A subanalysis that evaluated the timing of the addition of pembrolizumab to DT before or after disease progression showed no significant differences between the two in median overall survival (17 months vs. 16 months; P = .554).

“This is valuable information, especially for centers where pembrolizumab cannot be easily obtained as a first-line therapy for anaplastic thyroid cancer,” Dr. Hamidi said in presenting the findings.

She noted, however, that the results should be interpreted with caution, given the small number of patients who received pembrolizumab before progression (n = 34) and especially after progression (n = 14).

In terms of safety, there were no grade 5 adverse events (AEs); 32.4% of patients experienced immune‐related AEs, most frequently, colitis and hepatitis.
 

Therapies “improve survival”

Overall, the results are important, Dr. Cabanillas said.

The results are “very exciting when you think about the fact that 10 years ago, patients with anaplastic thyroid cancer had a median overall survival measured in months, and now we see that those with a BRAF mutation have a real chance at survival when managed appropriately from the start,” she told this news organization.

She noted that a key caveat is the study’s retrospective nature. Other important considerations are that pembrolizumab adds toxicity as well as cost, and it is largely used off label in anaplastic thyroid cancer.

Nevertheless, “it does feel like there needs to be a call to action in the guidelines for this disease so that it includes neoadjuvant DT or DT plus pembrolizumab as the primary treatment of patients with BRAF-mutated anaplastic thyroid cancer because the initial treatment is critical here,” Dr. Cabanillas said.

She added that a phase 2 trial with neoadjuvant DT plus pembrolizumab is ongoing. Enrollment is expected to be completed soon.

Commenting on the findings, Sarimar Agosto Salgado, MD, of the department of head and neck – endocrine oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Fla., who was a comoderator of the session, said the results are encouraging.

“These findings are promising because they open the landscape of options of therapies that we can provide these patients,” she said in an interview.

“Anaplastic thyroid cancer has been a disease with a very short survival despite aggressive therapies, but we are seeing that not only have these therapies been able to improve survival but also patients’ quality of life.”

Particularly encouraging is how quickly the therapies can work, Dr. Salgado added.

“Many times when patients present to the clinic, the rapid response to these systemic therapies can even [allow them to avoid] having a tracheostomy, and we’re also seeing that some of these patients are able to go from unresectable disease to resectable disease, and then by having the main tumor out, their survival improves.

“So, this is definitely a big ray of hope for these patients.”

Dr. Cabanillas has received research funding from Merck. Dr. Hamidi has disclosed no relevant financial relationships. Dr. Salgado has relationships with Lilly and Exelixis.
 

A version of this article appeared on Medscape.com.

Patients with cutaneous Merkel cell carcinoma (MCC) have a higher risk of subsequently developing solid and hematologic cancers, according to a new analysis.

In a cohort of 6,146 patients with a first primary MCC, a total of 725 (11.8%) developed subsequent primary cancers. For solid tumors, the risk was highest for cutaneous melanoma and papillary thyroid carcinoma, while for hematologic cancers, the risk was increased for non-Hodgkin lymphoma.

“Our study does confirm that patients with MCC are at higher risk for developing other cancers,” study author Lisa C. Zaba, MD, PhD, associate professor of dermatology and director of the Merkel cell carcinoma multidisciplinary clinic, Stanford (Calif.) Cancer Center, said in an interview. “MCC is a highly malignant cancer with a 40% recurrence risk.”

Because of this high risk, Dr. Zaba noted that patients with MCC get frequent surveillance with both imaging studies (PET-CT and CT) as well as frequent visits in clinic with MCC experts. “Specifically, a patient with MCC is imaged and seen in clinic every 3-6 months for the first 3 years after diagnosis, and every 6-12 months thereafter for up to 5 years,” she said. “Interestingly, this high level of surveillance may be one reason that we find so many cancers in patients who have been diagnosed with MCC, compared to the general population.”

The study was published online in JAMA Dermatology.

With the death of “Margaritaville” singer Jimmy Buffett, who recently died of MCC 4 years after his diagnosis, this rare, aggressive skin cancer has been put in the spotlight. Survival has been increasing, primarily because of the advent of immunotherapy, and the authors note that it is therefore imperative to better understand the risk of subsequent primary tumors to inform screening and treatment recommendations.

In this cohort study, Dr. Zaba and colleagues identified 6,146 patients from 17 registries of the Surveillance, Epidemiology, and End Results (SEER) Program who had been diagnosed with a first primary cutaneous MCC between 2000 and 2018.

Endpoints were the ratio of observed to expected number of cases of subsequent cancer (Standardized incidence ratio, or SIR) and the excess risk.

Overall, there was an elevated risk of developing a subsequent primary cancer after being diagnosed with MCC (SIR, 1.28; excess risk, 57.25 per 10,000 person-years). This included the risk for all solid tumors including liver (SIR, 1.92; excess risk, 2.77 per 10,000 person-years), pancreas (SIR, 1.65; excess risk, 4.55 per 10,000 person-years), cutaneous melanoma (SIR, 2.36; excess risk, 15.27 per 10,000 person-years), and kidney (SIR, 1.64; excess risk, 3.83 per 10,000 person-years).

There was also a higher risk of developing papillary thyroid carcinoma (PTC) (SIR, 5.26; excess risk, 6.16 per 10,000 person-years).

The risk of developing hematological cancers after MCC was also increased, especially for non-Hodgkin lymphoma (SIR, 2.62; excess risk, 15.48 per 10,000 person-years) and myelodysplastic syndrome (SIR, 2.17; excess risk, 2.73 per 10,000 person-years).

The risk for developing subsequent tumors, including melanoma and non-Hodgkin lymphoma, remained significant for up to 10 years, while the risk for developing PTC and kidney cancers remained for up to 5 years.

“After 3-5 years, when a MCC patient’s risk of MCC recurrence drops below 2%, we do not currently have guidelines in place for additional cancer screening,” Dr. Zaba said. “Regarding patient education, patients with MCC are educated to let us know if they experience any symptoms of cancer between visits, including unintentional weight loss, night sweats, headaches that increasingly worsen, or growing lumps or bumps. These symptoms may occur in a multitude of cancers and not just MCC.”

Weighing in on the study, Jeffrey M. Farma, MD, interim chair, department of surgical oncology at Fox Chase Cancer Center, Philadelphia, noted that MCC is considered to be high risk because of its chances of recurring after surgical resection or spreading to lymph nodes or other areas of the body. “There are approximately 3,000 new cases of melanoma a year in the U.S., and it is 40 times rarer than melanoma,” he said. “Patients are usually diagnosed with Merkel cell carcinoma later in life, and the tumors have been associated with sun exposure and immunosuppression and have also been associated with the polyomavirus.”

That said, however, he emphasized that great strides have been made in treatment. “These tumors are very sensitive to radiation, and we generally treat earlier-stage MCC with a combination of surgery and radiation therapy,” said Dr. Farma. “More recently we have had a lot of success with the use of immunotherapy to treat more advanced MCC.”

Dr. Zaba reported receiving grants from the Kuni Foundation outside the submitted work. No other disclosures were reported. Author Eleni Linos, MD, DrPH, MPH, is supported by grant K24AR075060 from the National Institutes of Health. No other outside funding was reported. Dr. Farma had no disclosures.

Patients with cutaneous Merkel cell carcinoma (MCC) have a higher risk of subsequently developing solid and hematologic cancers, according to a new analysis.

In a cohort of 6,146 patients with a first primary MCC, a total of 725 (11.8%) developed subsequent primary cancers. For solid tumors, the risk was highest for cutaneous melanoma and papillary thyroid carcinoma, while for hematologic cancers, the risk was increased for non-Hodgkin lymphoma.

“Our study does confirm that patients with MCC are at higher risk for developing other cancers,” study author Lisa C. Zaba, MD, PhD, associate professor of dermatology and director of the Merkel cell carcinoma multidisciplinary clinic, Stanford (Calif.) Cancer Center, said in an interview. “MCC is a highly malignant cancer with a 40% recurrence risk.”

Because of this high risk, Dr. Zaba noted that patients with MCC get frequent surveillance with both imaging studies (PET-CT and CT) as well as frequent visits in clinic with MCC experts. “Specifically, a patient with MCC is imaged and seen in clinic every 3-6 months for the first 3 years after diagnosis, and every 6-12 months thereafter for up to 5 years,” she said. “Interestingly, this high level of surveillance may be one reason that we find so many cancers in patients who have been diagnosed with MCC, compared to the general population.”

The study was published online in JAMA Dermatology.

With the death of “Margaritaville” singer Jimmy Buffett, who recently died of MCC 4 years after his diagnosis, this rare, aggressive skin cancer has been put in the spotlight. Survival has been increasing, primarily because of the advent of immunotherapy, and the authors note that it is therefore imperative to better understand the risk of subsequent primary tumors to inform screening and treatment recommendations.

In this cohort study, Dr. Zaba and colleagues identified 6,146 patients from 17 registries of the Surveillance, Epidemiology, and End Results (SEER) Program who had been diagnosed with a first primary cutaneous MCC between 2000 and 2018.

Endpoints were the ratio of observed to expected number of cases of subsequent cancer (Standardized incidence ratio, or SIR) and the excess risk.

Overall, there was an elevated risk of developing a subsequent primary cancer after being diagnosed with MCC (SIR, 1.28; excess risk, 57.25 per 10,000 person-years). This included the risk for all solid tumors including liver (SIR, 1.92; excess risk, 2.77 per 10,000 person-years), pancreas (SIR, 1.65; excess risk, 4.55 per 10,000 person-years), cutaneous melanoma (SIR, 2.36; excess risk, 15.27 per 10,000 person-years), and kidney (SIR, 1.64; excess risk, 3.83 per 10,000 person-years).

There was also a higher risk of developing papillary thyroid carcinoma (PTC) (SIR, 5.26; excess risk, 6.16 per 10,000 person-years).

The risk of developing hematological cancers after MCC was also increased, especially for non-Hodgkin lymphoma (SIR, 2.62; excess risk, 15.48 per 10,000 person-years) and myelodysplastic syndrome (SIR, 2.17; excess risk, 2.73 per 10,000 person-years).

The risk for developing subsequent tumors, including melanoma and non-Hodgkin lymphoma, remained significant for up to 10 years, while the risk for developing PTC and kidney cancers remained for up to 5 years.

“After 3-5 years, when a MCC patient’s risk of MCC recurrence drops below 2%, we do not currently have guidelines in place for additional cancer screening,” Dr. Zaba said. “Regarding patient education, patients with MCC are educated to let us know if they experience any symptoms of cancer between visits, including unintentional weight loss, night sweats, headaches that increasingly worsen, or growing lumps or bumps. These symptoms may occur in a multitude of cancers and not just MCC.”

Weighing in on the study, Jeffrey M. Farma, MD, interim chair, department of surgical oncology at Fox Chase Cancer Center, Philadelphia, noted that MCC is considered to be high risk because of its chances of recurring after surgical resection or spreading to lymph nodes or other areas of the body. “There are approximately 3,000 new cases of melanoma a year in the U.S., and it is 40 times rarer than melanoma,” he said. “Patients are usually diagnosed with Merkel cell carcinoma later in life, and the tumors have been associated with sun exposure and immunosuppression and have also been associated with the polyomavirus.”

That said, however, he emphasized that great strides have been made in treatment. “These tumors are very sensitive to radiation, and we generally treat earlier-stage MCC with a combination of surgery and radiation therapy,” said Dr. Farma. “More recently we have had a lot of success with the use of immunotherapy to treat more advanced MCC.”

Dr. Zaba reported receiving grants from the Kuni Foundation outside the submitted work. No other disclosures were reported. Author Eleni Linos, MD, DrPH, MPH, is supported by grant K24AR075060 from the National Institutes of Health. No other outside funding was reported. Dr. Farma had no disclosures.

Patients with cutaneous Merkel cell carcinoma (MCC) have a higher risk of subsequently developing solid and hematologic cancers, according to a new analysis.

In a cohort of 6,146 patients with a first primary MCC, a total of 725 (11.8%) developed subsequent primary cancers. For solid tumors, the risk was highest for cutaneous melanoma and papillary thyroid carcinoma, while for hematologic cancers, the risk was increased for non-Hodgkin lymphoma.

“Our study does confirm that patients with MCC are at higher risk for developing other cancers,” study author Lisa C. Zaba, MD, PhD, associate professor of dermatology and director of the Merkel cell carcinoma multidisciplinary clinic, Stanford (Calif.) Cancer Center, said in an interview. “MCC is a highly malignant cancer with a 40% recurrence risk.”

Because of this high risk, Dr. Zaba noted that patients with MCC get frequent surveillance with both imaging studies (PET-CT and CT) as well as frequent visits in clinic with MCC experts. “Specifically, a patient with MCC is imaged and seen in clinic every 3-6 months for the first 3 years after diagnosis, and every 6-12 months thereafter for up to 5 years,” she said. “Interestingly, this high level of surveillance may be one reason that we find so many cancers in patients who have been diagnosed with MCC, compared to the general population.”

The study was published online in JAMA Dermatology.

With the death of “Margaritaville” singer Jimmy Buffett, who recently died of MCC 4 years after his diagnosis, this rare, aggressive skin cancer has been put in the spotlight. Survival has been increasing, primarily because of the advent of immunotherapy, and the authors note that it is therefore imperative to better understand the risk of subsequent primary tumors to inform screening and treatment recommendations.

In this cohort study, Dr. Zaba and colleagues identified 6,146 patients from 17 registries of the Surveillance, Epidemiology, and End Results (SEER) Program who had been diagnosed with a first primary cutaneous MCC between 2000 and 2018.

Endpoints were the ratio of observed to expected number of cases of subsequent cancer (Standardized incidence ratio, or SIR) and the excess risk.

Overall, there was an elevated risk of developing a subsequent primary cancer after being diagnosed with MCC (SIR, 1.28; excess risk, 57.25 per 10,000 person-years). This included the risk for all solid tumors including liver (SIR, 1.92; excess risk, 2.77 per 10,000 person-years), pancreas (SIR, 1.65; excess risk, 4.55 per 10,000 person-years), cutaneous melanoma (SIR, 2.36; excess risk, 15.27 per 10,000 person-years), and kidney (SIR, 1.64; excess risk, 3.83 per 10,000 person-years).

There was also a higher risk of developing papillary thyroid carcinoma (PTC) (SIR, 5.26; excess risk, 6.16 per 10,000 person-years).

The risk of developing hematological cancers after MCC was also increased, especially for non-Hodgkin lymphoma (SIR, 2.62; excess risk, 15.48 per 10,000 person-years) and myelodysplastic syndrome (SIR, 2.17; excess risk, 2.73 per 10,000 person-years).

The risk for developing subsequent tumors, including melanoma and non-Hodgkin lymphoma, remained significant for up to 10 years, while the risk for developing PTC and kidney cancers remained for up to 5 years.

“After 3-5 years, when a MCC patient’s risk of MCC recurrence drops below 2%, we do not currently have guidelines in place for additional cancer screening,” Dr. Zaba said. “Regarding patient education, patients with MCC are educated to let us know if they experience any symptoms of cancer between visits, including unintentional weight loss, night sweats, headaches that increasingly worsen, or growing lumps or bumps. These symptoms may occur in a multitude of cancers and not just MCC.”

Weighing in on the study, Jeffrey M. Farma, MD, interim chair, department of surgical oncology at Fox Chase Cancer Center, Philadelphia, noted that MCC is considered to be high risk because of its chances of recurring after surgical resection or spreading to lymph nodes or other areas of the body. “There are approximately 3,000 new cases of melanoma a year in the U.S., and it is 40 times rarer than melanoma,” he said. “Patients are usually diagnosed with Merkel cell carcinoma later in life, and the tumors have been associated with sun exposure and immunosuppression and have also been associated with the polyomavirus.”

That said, however, he emphasized that great strides have been made in treatment. “These tumors are very sensitive to radiation, and we generally treat earlier-stage MCC with a combination of surgery and radiation therapy,” said Dr. Farma. “More recently we have had a lot of success with the use of immunotherapy to treat more advanced MCC.”

Dr. Zaba reported receiving grants from the Kuni Foundation outside the submitted work. No other disclosures were reported. Author Eleni Linos, MD, DrPH, MPH, is supported by grant K24AR075060 from the National Institutes of Health. No other outside funding was reported. Dr. Farma had no disclosures.

INTRODUCTION

Follicular thyroid cancer (FTC) is a common endocrine malignancy that is mainly treated with surgical resection. Few prior studies have investigated the optimal type of surgery for this FTC, particularly at a national registry level. The aim of this study is to examine the differences between surgical subtypes in the management of FTC.

METHODS

Patients from the Surveillance, Epidemiology, and End Results (SEER) database who were diagnosed with FTC between 2000-2020 were selected. The surgeries were categorized into sublobectomy, lobectomy, subtotal thyroidectomy, or thyroidectomy groups based on the surgical procedure performed. Additional variables were collected including age, sex, race, stage, radiation status, time to treatment, household income, and population size. Kaplan-Meier, Chi-square and logistic regression analyses were performed.

RESULTS

A total of 9,983 patients were included. Using Kaplan-Meier, there was improved survival for patients that received surgery (p<0.001). Patients who underwent lobectomy had greater survival than all groups (p<0.001) while thyroidectomy had greater survival compared to sub-lobectomy (p=0.015). On Chi-square, differences at one- and five-year survival were present between surgical groups (p=0.022 and p<0.001, respectively). However, logistic regression showed no survival difference between surgery type at one- and five-years. Additional findings include regional and distal staging having worse survival at one- and five-years (p’s<0.001) while median household income >$75,000 and receipt of radiation improved survival at one-year (p’s<0.05). Household income >$75,000 and radiation status no longer improved survival at five-years. Patients living outside metropolitan areas showed an improved survival at fiveyears (p=0.036).

CONCLUSIONS

The results of the preliminary Kaplan- Meier and Chi-square analysis showed that there are significant differences in survival between different surgery subtypes. However, after controlling for multiple variables, no survival differences were observed between surgical types. Despite minimal differences in FTC survival based on the type of surgical intervention, clinical factors like stage and radiation and socioeconomic factors like household income and population size may influence FTC survival. Identifying and controlling for these variables should be considered in future research on FTC.

INTRODUCTION

Follicular thyroid cancer (FTC) is a common endocrine malignancy that is mainly treated with surgical resection. Few prior studies have investigated the optimal type of surgery for this FTC, particularly at a national registry level. The aim of this study is to examine the differences between surgical subtypes in the management of FTC.

METHODS

Patients from the Surveillance, Epidemiology, and End Results (SEER) database who were diagnosed with FTC between 2000-2020 were selected. The surgeries were categorized into sublobectomy, lobectomy, subtotal thyroidectomy, or thyroidectomy groups based on the surgical procedure performed. Additional variables were collected including age, sex, race, stage, radiation status, time to treatment, household income, and population size. Kaplan-Meier, Chi-square and logistic regression analyses were performed.

RESULTS

A total of 9,983 patients were included. Using Kaplan-Meier, there was improved survival for patients that received surgery (p<0.001). Patients who underwent lobectomy had greater survival than all groups (p<0.001) while thyroidectomy had greater survival compared to sub-lobectomy (p=0.015). On Chi-square, differences at one- and five-year survival were present between surgical groups (p=0.022 and p<0.001, respectively). However, logistic regression showed no survival difference between surgery type at one- and five-years. Additional findings include regional and distal staging having worse survival at one- and five-years (p’s<0.001) while median household income >$75,000 and receipt of radiation improved survival at one-year (p’s<0.05). Household income >$75,000 and radiation status no longer improved survival at five-years. Patients living outside metropolitan areas showed an improved survival at fiveyears (p=0.036).

CONCLUSIONS

The results of the preliminary Kaplan- Meier and Chi-square analysis showed that there are significant differences in survival between different surgery subtypes. However, after controlling for multiple variables, no survival differences were observed between surgical types. Despite minimal differences in FTC survival based on the type of surgical intervention, clinical factors like stage and radiation and socioeconomic factors like household income and population size may influence FTC survival. Identifying and controlling for these variables should be considered in future research on FTC.

INTRODUCTION

Follicular thyroid cancer (FTC) is a common endocrine malignancy that is mainly treated with surgical resection. Few prior studies have investigated the optimal type of surgery for this FTC, particularly at a national registry level. The aim of this study is to examine the differences between surgical subtypes in the management of FTC.

METHODS

Patients from the Surveillance, Epidemiology, and End Results (SEER) database who were diagnosed with FTC between 2000-2020 were selected. The surgeries were categorized into sublobectomy, lobectomy, subtotal thyroidectomy, or thyroidectomy groups based on the surgical procedure performed. Additional variables were collected including age, sex, race, stage, radiation status, time to treatment, household income, and population size. Kaplan-Meier, Chi-square and logistic regression analyses were performed.

RESULTS

A total of 9,983 patients were included. Using Kaplan-Meier, there was improved survival for patients that received surgery (p<0.001). Patients who underwent lobectomy had greater survival than all groups (p<0.001) while thyroidectomy had greater survival compared to sub-lobectomy (p=0.015). On Chi-square, differences at one- and five-year survival were present between surgical groups (p=0.022 and p<0.001, respectively). However, logistic regression showed no survival difference between surgery type at one- and five-years. Additional findings include regional and distal staging having worse survival at one- and five-years (p’s<0.001) while median household income >$75,000 and receipt of radiation improved survival at one-year (p’s<0.05). Household income >$75,000 and radiation status no longer improved survival at five-years. Patients living outside metropolitan areas showed an improved survival at fiveyears (p=0.036).

CONCLUSIONS

The results of the preliminary Kaplan- Meier and Chi-square analysis showed that there are significant differences in survival between different surgery subtypes. However, after controlling for multiple variables, no survival differences were observed between surgical types. Despite minimal differences in FTC survival based on the type of surgical intervention, clinical factors like stage and radiation and socioeconomic factors like household income and population size may influence FTC survival. Identifying and controlling for these variables should be considered in future research on FTC.

INTRODUCTION

Medulloblastoma (MB) is rarely seen in adulthood. Treatment guidelines are derived from studies of the pediatric population, results favoring the Packer regimen (cisplatin plus cyclophosphamide or lomustine plus vincristine). MB rarely has extraneural metastases, especially the bone marrow.

CASE PRESENTATION

A 32-year-old female with a past medical history of cerebellar MB confirmed on surgical pathology status post resection, weekly radiation and vincristine treatment presented to us in clinic to re-establish care. She was lost to follow-up 9 months after initial diagnosis and wished to continue treatment. She was started on Lomustine, Cisplatin and Vincristine after discussion with our colleagues at MSKCC, where she had received her initial treatment. After cycle three, she developed intractable bone pain and pancytopenia. Bone marrow biopsy revealed metastasis of Sonic Hedgehog Desmoplastic/nodular variant MB. PET and CT imaging confirmed metastatic disease in the bone marrow and repeat MRI brain showed abnormal nodular enhancement. CSF analysis to assess for spinal metastasis was negative. The patient was started on Temozolomide, Irinotecan and Bevacizumab with significant improvement in bone pain and radiological improvement noted on PET and CT scans. After cycle six, the patient had increased bone pain and repeat FDG-PET showed increased uptake, however, she continued to receive treatment and her pain has improved off narcotics.

DISCUSSION

We highlight a case of adult MB in the bone marrow responsive to temozolomide, irinotecan and bevacizumab. We conducted a literature search using PubMed, Medline and Web of Science between 1990 to 2022. In 2021, COG Phase 2 screening trial showed bevacizumab, temozolamide/irinotecan therapy significantly reduced the risk of death with recurrent MBs, two studies included patients up to 21 and 23 years of age. Other modalities showing some response include Vincristine plus cyclophosphamide as well as high dose carboplatin, thiotepa and etoposide alongside autologous SCT. Vismodegib has also shown varied response of 15 months in two adults with extraneural MB metastasis. Given the unique entity of adult MB and extraneural metastasis, limitations include small sample and lack of generalizability.

CONCLUSIONS

Extraneural metastasis of MB yields a poor prognosis. Future considerations include randomized trials to establish efficacy of Temozolomide, Irinotecan plus Bevacizumab in this population.

INTRODUCTION

Medulloblastoma (MB) is rarely seen in adulthood. Treatment guidelines are derived from studies of the pediatric population, results favoring the Packer regimen (cisplatin plus cyclophosphamide or lomustine plus vincristine). MB rarely has extraneural metastases, especially the bone marrow.

CASE PRESENTATION

A 32-year-old female with a past medical history of cerebellar MB confirmed on surgical pathology status post resection, weekly radiation and vincristine treatment presented to us in clinic to re-establish care. She was lost to follow-up 9 months after initial diagnosis and wished to continue treatment. She was started on Lomustine, Cisplatin and Vincristine after discussion with our colleagues at MSKCC, where she had received her initial treatment. After cycle three, she developed intractable bone pain and pancytopenia. Bone marrow biopsy revealed metastasis of Sonic Hedgehog Desmoplastic/nodular variant MB. PET and CT imaging confirmed metastatic disease in the bone marrow and repeat MRI brain showed abnormal nodular enhancement. CSF analysis to assess for spinal metastasis was negative. The patient was started on Temozolomide, Irinotecan and Bevacizumab with significant improvement in bone pain and radiological improvement noted on PET and CT scans. After cycle six, the patient had increased bone pain and repeat FDG-PET showed increased uptake, however, she continued to receive treatment and her pain has improved off narcotics.

DISCUSSION

We highlight a case of adult MB in the bone marrow responsive to temozolomide, irinotecan and bevacizumab. We conducted a literature search using PubMed, Medline and Web of Science between 1990 to 2022. In 2021, COG Phase 2 screening trial showed bevacizumab, temozolamide/irinotecan therapy significantly reduced the risk of death with recurrent MBs, two studies included patients up to 21 and 23 years of age. Other modalities showing some response include Vincristine plus cyclophosphamide as well as high dose carboplatin, thiotepa and etoposide alongside autologous SCT. Vismodegib has also shown varied response of 15 months in two adults with extraneural MB metastasis. Given the unique entity of adult MB and extraneural metastasis, limitations include small sample and lack of generalizability.

CONCLUSIONS

Extraneural metastasis of MB yields a poor prognosis. Future considerations include randomized trials to establish efficacy of Temozolomide, Irinotecan plus Bevacizumab in this population.

INTRODUCTION

Medulloblastoma (MB) is rarely seen in adulthood. Treatment guidelines are derived from studies of the pediatric population, results favoring the Packer regimen (cisplatin plus cyclophosphamide or lomustine plus vincristine). MB rarely has extraneural metastases, especially the bone marrow.

CASE PRESENTATION

A 32-year-old female with a past medical history of cerebellar MB confirmed on surgical pathology status post resection, weekly radiation and vincristine treatment presented to us in clinic to re-establish care. She was lost to follow-up 9 months after initial diagnosis and wished to continue treatment. She was started on Lomustine, Cisplatin and Vincristine after discussion with our colleagues at MSKCC, where she had received her initial treatment. After cycle three, she developed intractable bone pain and pancytopenia. Bone marrow biopsy revealed metastasis of Sonic Hedgehog Desmoplastic/nodular variant MB. PET and CT imaging confirmed metastatic disease in the bone marrow and repeat MRI brain showed abnormal nodular enhancement. CSF analysis to assess for spinal metastasis was negative. The patient was started on Temozolomide, Irinotecan and Bevacizumab with significant improvement in bone pain and radiological improvement noted on PET and CT scans. After cycle six, the patient had increased bone pain and repeat FDG-PET showed increased uptake, however, she continued to receive treatment and her pain has improved off narcotics.

DISCUSSION

We highlight a case of adult MB in the bone marrow responsive to temozolomide, irinotecan and bevacizumab. We conducted a literature search using PubMed, Medline and Web of Science between 1990 to 2022. In 2021, COG Phase 2 screening trial showed bevacizumab, temozolamide/irinotecan therapy significantly reduced the risk of death with recurrent MBs, two studies included patients up to 21 and 23 years of age. Other modalities showing some response include Vincristine plus cyclophosphamide as well as high dose carboplatin, thiotepa and etoposide alongside autologous SCT. Vismodegib has also shown varied response of 15 months in two adults with extraneural MB metastasis. Given the unique entity of adult MB and extraneural metastasis, limitations include small sample and lack of generalizability.

CONCLUSIONS

Extraneural metastasis of MB yields a poor prognosis. Future considerations include randomized trials to establish efficacy of Temozolomide, Irinotecan plus Bevacizumab in this population.

PURPOSE

Assess the clinical impact (CI) of UV-related DNA damage signatures (UVsig) in Veterans with cancer of unknown primary (CUP) and cancer of extracutaneous origin (CEO).

BACKGROUND

UVsig have been reported in CUP and CEO (i.e. head and neck cancer and lung cancer). The presence of UVsig suggests a cutaneous origin and potential misclassification of CEO using conventional histopathologic evaluation. Literature on the association of UVsig in pan-cancer genomics is limited.

METHODS

This is a retrospective study of Veterans who underwent comprehensive genomic profiling with FoundationOne CDx during 2/1/2019 to 9/30/2022 through the VA National Precision Oncology Program. The outcome was the CI of UVsig (high, medium, and low) determined by blinded chart reviews: (1) high: UVsig leading to change in diagnoses (CID) and a different first-line therapy (FLT) would have been offered; (2) medium: UVsig leading to CID, but appropriate FLT offered; (3) low: diagnoses modified by clinicians and treated as cutaneous cancers. NCCN Guidelines were referenced for FLT.

DATA ANALYSIS

Descriptive statistics and chi-square tests were utilized to evaluate the UVsig CI.

RESULTS

Among 5,565 cases with 10 or more assessable alterations for UVsig analysis, 650 (11.7%) were positive for UVsig. CUP and CEO cohorts each had 41 cases analyzed. In the CUP cases, 20 (48.8%), 9 (21.9%), and 12 (29.3%) were categorized as having high, medium, and low CI, respectively; and in the CEO cases, it was 22 (53.7%), 15 (36.6%), and 4 (9.8%). There was no difference statistically between the CUP and CEO groups on the percentage distribution of CI (p=0.06). Among the 42 out of 82 cases having high CI, 37 (88.1%) received cytotoxic chemotherapy without any indication, and 5 (11.9%) were not offered immunotherapy (IO) as FLT. More than half of the 82 cases had high CI; more than 90% of the CEO cases had high and medium CI.

IMPLICATIONS

UVsig serves as a useful biomarker for cancers with cutaneous origin. About 1% of the 5,565 cases analyzed had high UVsig CI. Knowledge of UVsig could lead to omission of chemotherapy (hence avoiding toxicities) or addition of IO (for potential benefits).

PURPOSE

Assess the clinical impact (CI) of UV-related DNA damage signatures (UVsig) in Veterans with cancer of unknown primary (CUP) and cancer of extracutaneous origin (CEO).

BACKGROUND

UVsig have been reported in CUP and CEO (i.e. head and neck cancer and lung cancer). The presence of UVsig suggests a cutaneous origin and potential misclassification of CEO using conventional histopathologic evaluation. Literature on the association of UVsig in pan-cancer genomics is limited.

METHODS

This is a retrospective study of Veterans who underwent comprehensive genomic profiling with FoundationOne CDx during 2/1/2019 to 9/30/2022 through the VA National Precision Oncology Program. The outcome was the CI of UVsig (high, medium, and low) determined by blinded chart reviews: (1) high: UVsig leading to change in diagnoses (CID) and a different first-line therapy (FLT) would have been offered; (2) medium: UVsig leading to CID, but appropriate FLT offered; (3) low: diagnoses modified by clinicians and treated as cutaneous cancers. NCCN Guidelines were referenced for FLT.

DATA ANALYSIS

Descriptive statistics and chi-square tests were utilized to evaluate the UVsig CI.

RESULTS

Among 5,565 cases with 10 or more assessable alterations for UVsig analysis, 650 (11.7%) were positive for UVsig. CUP and CEO cohorts each had 41 cases analyzed. In the CUP cases, 20 (48.8%), 9 (21.9%), and 12 (29.3%) were categorized as having high, medium, and low CI, respectively; and in the CEO cases, it was 22 (53.7%), 15 (36.6%), and 4 (9.8%). There was no difference statistically between the CUP and CEO groups on the percentage distribution of CI (p=0.06). Among the 42 out of 82 cases having high CI, 37 (88.1%) received cytotoxic chemotherapy without any indication, and 5 (11.9%) were not offered immunotherapy (IO) as FLT. More than half of the 82 cases had high CI; more than 90% of the CEO cases had high and medium CI.

IMPLICATIONS

UVsig serves as a useful biomarker for cancers with cutaneous origin. About 1% of the 5,565 cases analyzed had high UVsig CI. Knowledge of UVsig could lead to omission of chemotherapy (hence avoiding toxicities) or addition of IO (for potential benefits).

PURPOSE

Assess the clinical impact (CI) of UV-related DNA damage signatures (UVsig) in Veterans with cancer of unknown primary (CUP) and cancer of extracutaneous origin (CEO).

BACKGROUND

UVsig have been reported in CUP and CEO (i.e. head and neck cancer and lung cancer). The presence of UVsig suggests a cutaneous origin and potential misclassification of CEO using conventional histopathologic evaluation. Literature on the association of UVsig in pan-cancer genomics is limited.

METHODS

This is a retrospective study of Veterans who underwent comprehensive genomic profiling with FoundationOne CDx during 2/1/2019 to 9/30/2022 through the VA National Precision Oncology Program. The outcome was the CI of UVsig (high, medium, and low) determined by blinded chart reviews: (1) high: UVsig leading to change in diagnoses (CID) and a different first-line therapy (FLT) would have been offered; (2) medium: UVsig leading to CID, but appropriate FLT offered; (3) low: diagnoses modified by clinicians and treated as cutaneous cancers. NCCN Guidelines were referenced for FLT.

DATA ANALYSIS

Descriptive statistics and chi-square tests were utilized to evaluate the UVsig CI.

RESULTS

Among 5,565 cases with 10 or more assessable alterations for UVsig analysis, 650 (11.7%) were positive for UVsig. CUP and CEO cohorts each had 41 cases analyzed. In the CUP cases, 20 (48.8%), 9 (21.9%), and 12 (29.3%) were categorized as having high, medium, and low CI, respectively; and in the CEO cases, it was 22 (53.7%), 15 (36.6%), and 4 (9.8%). There was no difference statistically between the CUP and CEO groups on the percentage distribution of CI (p=0.06). Among the 42 out of 82 cases having high CI, 37 (88.1%) received cytotoxic chemotherapy without any indication, and 5 (11.9%) were not offered immunotherapy (IO) as FLT. More than half of the 82 cases had high CI; more than 90% of the CEO cases had high and medium CI.

IMPLICATIONS

UVsig serves as a useful biomarker for cancers with cutaneous origin. About 1% of the 5,565 cases analyzed had high UVsig CI. Knowledge of UVsig could lead to omission of chemotherapy (hence avoiding toxicities) or addition of IO (for potential benefits).

INTRODUCTION

Leptomeningeal metastasis (LM) is an extremely rare complication of gastroesophageal (GE) cancer. Diagnosis is challenging due to frequently nonspecific clinical presentations, limited sensitivity of diagnostic testing, and potential overlap with neurologic immune-related adverse events (irAE). We describe a case of metastatic gastroesophageal cancer on immunotherapy presenting with LM masquerading as polyneuropathy.

CASE REPORT

A 74-year-old male with HER2+ GE junction cancer with peritoneal metastases diagnosed 6 months ago, on maintenance trastuzumab/pembrolizumab and with no previous history of cranial or spinal disease, presented with worsening ataxia, headache, and diplopia for one month with multiple negative outpatient MRIs. Examination showed left abducens nerve palsy, dysmetria and absent deep tendon reflexes in upper and lower extremities. CT head was unremarkable, and MRI showed non-specific mild enhancement of the right optic nerve, symmetrical lumbosacral nerve roots and cauda equina concerning for paraneoplastic versus immunotherapy-related polyneuropathy. He was started on empiric high-dose corticosteroids. PET-CT was negative for FDG-avid lesions. Cerebrospinal fluid (CSF) analysis revealed moderate pleocytosis with many large atypical cells, elevated protein (118 mg/dL) and LDH (28 IU/L). Immunohistochemistry was positive for CDX2, CA 19-9, CK7, and pankeratin, consistent with metastatic adenocarcinoma, negative for HER2 in contrast to the original tumor. He subsequently developed hydrocephalus requiring a ventriculoperitoneal shunt. He received ten fractions of whole brain irradiation before electing to pursue hospice care.

DISCUSSION

LM is an extremely rare complication of GE cancer with an incidence of <0.2% and carries a poor prognosis. Differentiation between LM and irAE in patients on immunotherapy can be challenging. Diagnosis relies mostly on CSF cytology, and lumbar puncture should not be delayed in patients with new neurologic symptoms. Treatment options are intrathecal chemotherapy, radiation and steroids. A recent phase II trial has shown promise for intrathecal trastuzumab in patients with HER2+ cancers, but options for HER2 negative disease remain mostly palliative.

CONCLUSIONS

Our case highlights the need for suspecting this rare metastatic site, as early diagnosis and genetic characterization allow for exploring more treatment options including targeted therapies which may improve overall survival and quality of life.

INTRODUCTION

Leptomeningeal metastasis (LM) is an extremely rare complication of gastroesophageal (GE) cancer. Diagnosis is challenging due to frequently nonspecific clinical presentations, limited sensitivity of diagnostic testing, and potential overlap with neurologic immune-related adverse events (irAE). We describe a case of metastatic gastroesophageal cancer on immunotherapy presenting with LM masquerading as polyneuropathy.

CASE REPORT

A 74-year-old male with HER2+ GE junction cancer with peritoneal metastases diagnosed 6 months ago, on maintenance trastuzumab/pembrolizumab and with no previous history of cranial or spinal disease, presented with worsening ataxia, headache, and diplopia for one month with multiple negative outpatient MRIs. Examination showed left abducens nerve palsy, dysmetria and absent deep tendon reflexes in upper and lower extremities. CT head was unremarkable, and MRI showed non-specific mild enhancement of the right optic nerve, symmetrical lumbosacral nerve roots and cauda equina concerning for paraneoplastic versus immunotherapy-related polyneuropathy. He was started on empiric high-dose corticosteroids. PET-CT was negative for FDG-avid lesions. Cerebrospinal fluid (CSF) analysis revealed moderate pleocytosis with many large atypical cells, elevated protein (118 mg/dL) and LDH (28 IU/L). Immunohistochemistry was positive for CDX2, CA 19-9, CK7, and pankeratin, consistent with metastatic adenocarcinoma, negative for HER2 in contrast to the original tumor. He subsequently developed hydrocephalus requiring a ventriculoperitoneal shunt. He received ten fractions of whole brain irradiation before electing to pursue hospice care.

DISCUSSION

LM is an extremely rare complication of GE cancer with an incidence of <0.2% and carries a poor prognosis. Differentiation between LM and irAE in patients on immunotherapy can be challenging. Diagnosis relies mostly on CSF cytology, and lumbar puncture should not be delayed in patients with new neurologic symptoms. Treatment options are intrathecal chemotherapy, radiation and steroids. A recent phase II trial has shown promise for intrathecal trastuzumab in patients with HER2+ cancers, but options for HER2 negative disease remain mostly palliative.

CONCLUSIONS

Our case highlights the need for suspecting this rare metastatic site, as early diagnosis and genetic characterization allow for exploring more treatment options including targeted therapies which may improve overall survival and quality of life.

INTRODUCTION

Leptomeningeal metastasis (LM) is an extremely rare complication of gastroesophageal (GE) cancer. Diagnosis is challenging due to frequently nonspecific clinical presentations, limited sensitivity of diagnostic testing, and potential overlap with neurologic immune-related adverse events (irAE). We describe a case of metastatic gastroesophageal cancer on immunotherapy presenting with LM masquerading as polyneuropathy.

CASE REPORT

A 74-year-old male with HER2+ GE junction cancer with peritoneal metastases diagnosed 6 months ago, on maintenance trastuzumab/pembrolizumab and with no previous history of cranial or spinal disease, presented with worsening ataxia, headache, and diplopia for one month with multiple negative outpatient MRIs. Examination showed left abducens nerve palsy, dysmetria and absent deep tendon reflexes in upper and lower extremities. CT head was unremarkable, and MRI showed non-specific mild enhancement of the right optic nerve, symmetrical lumbosacral nerve roots and cauda equina concerning for paraneoplastic versus immunotherapy-related polyneuropathy. He was started on empiric high-dose corticosteroids. PET-CT was negative for FDG-avid lesions. Cerebrospinal fluid (CSF) analysis revealed moderate pleocytosis with many large atypical cells, elevated protein (118 mg/dL) and LDH (28 IU/L). Immunohistochemistry was positive for CDX2, CA 19-9, CK7, and pankeratin, consistent with metastatic adenocarcinoma, negative for HER2 in contrast to the original tumor. He subsequently developed hydrocephalus requiring a ventriculoperitoneal shunt. He received ten fractions of whole brain irradiation before electing to pursue hospice care.

DISCUSSION

LM is an extremely rare complication of GE cancer with an incidence of <0.2% and carries a poor prognosis. Differentiation between LM and irAE in patients on immunotherapy can be challenging. Diagnosis relies mostly on CSF cytology, and lumbar puncture should not be delayed in patients with new neurologic symptoms. Treatment options are intrathecal chemotherapy, radiation and steroids. A recent phase II trial has shown promise for intrathecal trastuzumab in patients with HER2+ cancers, but options for HER2 negative disease remain mostly palliative.

CONCLUSIONS

Our case highlights the need for suspecting this rare metastatic site, as early diagnosis and genetic characterization allow for exploring more treatment options including targeted therapies which may improve overall survival and quality of life.

The National Cancer Institute recently released a publicly available oral cancer survival calculator for people recently diagnosed with oral cancer.

This represents the first cancer survival calculator that provides “personalized estimates of the likelihood of surviving or dying from oral cancer or other causes,” according to the experts who developed the tool.

An analysis evaluating the new calculator revealed that people with oral cancer are more likely to die from other causes, compared with their peers without oral cancer, and that noncancer survival worsens with cancer stage.

With its unique design, the calculator “represents perhaps one of the most sophisticated and comprehensive tools to date by integrating multiple population-level data sources to account for general health status [and] disease exposures,” such as alcohol and tobacco, socioeconomic status, and coexisting conditions, the authors of an accompanying commentary wrote.

This calculator may just be the beginning. The broader aim of developing the tool, the study authors explained, is for this new calculator approach to be “applicable for developing future prognostic models of cancer and noncancer aspects of a person’s health in other cancers.”

The analysis was published in JAMA Otolaryngology–Head and Neck Surgery.

When assessing survival, factors such as cancer stage and tumor size are key, but comorbidities also play a crucial role. For oral cancer in particular, where alcohol and tobacco use are notorious risk factors, comorbidities occur frequently and are often serious.

To create a model that provides more “holistic and personalized” estimates and includes a host of factors that can affect the risk of death, the authors tapped into data from the Surveillance, Epidemiology, and End Results database to develop the SEER Oral Cancer Survival Calculator.

Alongside data from the SEER database, the calculator used data from the National Health Interview Survey’s Longitudinal Mortality Files to obtain estimates of general health status, life expectancy without cancer, and the probability of dying from the cancer or from other causes within 1-10 years among people with newly diagnosed oral cancer.

Overall, the data included 22,392 patients, aged 20-94, with oral squamous cell carcinoma, 60.5% of whom were male and 78% White, as well as 402,626 interviewees from the survey. The calculator did not include patients with tonsil- or tongue-based cancers, which were not considered anatomically part of the oral cavity.

The most common conditions coexisting with oral cancer were diabetes and chronic obstructive pulmonary disease among older patients. Among those with oral cancer, more than half (52.8%) had none of the major coexisting conditions, which also included peripheral and cerebrovascular disease, compared with 80% of the Medicare population.

The researchers described and validated four models – one that estimated the probability of death due to oral cancer, and then three others that estimated the probability of death from other causes, with variations based on the specific data and covariates included.

Overall, the models in the calculator estimated that patients with oral cancer have a higher risk of death from other causes, compared with the general population, and survival estimates for noncancer causes got worse with more advanced cancer stage.

For instance, for a patient diagnosed with stage 3 oral cancer after age 50, the chances of being alive at age 70 were 60% for females and 44% for males in the absence of cancer, whereas the corresponding survival estimates in the general U.S. population were 86% for females and 79% for males – an absolute difference of 26 and 35 percentage points.

One key reason for this trend is that patients with later-stage cancers likely also have more coexisting health conditions, first author Louise Davies, MD, from the Geisel School of Medicine at Dartmouth, Lebanon, N.H., explained.

Another reason: For cancers with low enough mortality rates, people might be more likely to die from causes other than their cancer. This can also occur in ductal carcinoma in situ breast cancer or papillary thyroid cancer, noted Dr. Davies, also from the Department of Veterans Affairs Medical Center, White River Junction, Vt.

Commenting on the study, Eric Moore, MD, a head and neck surgeon with the Mayo Clinic in Rochester, Minn., said that while such prediction tools are important, they also come with caveats.

“I think these calculators are helpful and certainly having them widely available to people gives them another piece of knowledge that can be powerful,” he told this news organization. “But you want to make sure you don’t interpret them as the end-all, be-all message, because there are an infinite number of variables that could influence survival that aren’t available in some of these datasets.”

Neil D. Gross, MD, a professor of head and neck surgery at the University of Texas MD Anderson Cancer Center, Houston, agreed. Although this new calculator uses a large dataset, such tools “can be imperfect” and some factors simply can’t be calculated, such as a person’s priorities, Dr. Gross said.

That’s why there’s no substitute for having a “very personal discussion between a patient and a physician to decide what’s best.” And this calculator is just one tool to help with that process, Dr. Gross said.

The commentary authors echoed these sentiments. “This calculator can potentially bridge the gaps between the survival estimates in the literature, life tables, clinical gestalt, and physician attempts to contextualize the inherent limitations of applying survival curves and averages to the one patient with the diagnosis,” wrote Leila J. Mady, MD, PhD, MPH, Wayne M. Koch, MD, and Carole Fakhry, MD, MPH, all from Johns Hopkins School of Medicine, Baltimore.

But a caveat in providing such predictions is the possible psychological effect the news can have.

“Potential risks of revealing personalized prognostic survival estimates to patients include increased anxiety and distress surrounding competing causes of death [and] misinterpretation of data,” the commentary authors cautioned, adding that “we must present such information with grace and sensitivity.”

Dr. Davies recommends that clinicians ask patients what they want to know because that will vary by patient and potentially over time for the same patient.

“People are more than their cancer diagnosis,” said Dr. Davies. “Giving them the opportunity to consider their life as a whole is the aim.”

The oral cancer calculator can be publicly accessed through the National Cancer Institute. The study was supported by the Department of Veterans Affairs and the National Cancer Institute as part of an interagency agreement. The authors report no relevant financial relationships.
 

A version of this article appeared on Medscape.com.

The National Cancer Institute recently released a publicly available oral cancer survival calculator for people recently diagnosed with oral cancer.

This represents the first cancer survival calculator that provides “personalized estimates of the likelihood of surviving or dying from oral cancer or other causes,” according to the experts who developed the tool.

An analysis evaluating the new calculator revealed that people with oral cancer are more likely to die from other causes, compared with their peers without oral cancer, and that noncancer survival worsens with cancer stage.

With its unique design, the calculator “represents perhaps one of the most sophisticated and comprehensive tools to date by integrating multiple population-level data sources to account for general health status [and] disease exposures,” such as alcohol and tobacco, socioeconomic status, and coexisting conditions, the authors of an accompanying commentary wrote.

This calculator may just be the beginning. The broader aim of developing the tool, the study authors explained, is for this new calculator approach to be “applicable for developing future prognostic models of cancer and noncancer aspects of a person’s health in other cancers.”

The analysis was published in JAMA Otolaryngology–Head and Neck Surgery.

When assessing survival, factors such as cancer stage and tumor size are key, but comorbidities also play a crucial role. For oral cancer in particular, where alcohol and tobacco use are notorious risk factors, comorbidities occur frequently and are often serious.

To create a model that provides more “holistic and personalized” estimates and includes a host of factors that can affect the risk of death, the authors tapped into data from the Surveillance, Epidemiology, and End Results database to develop the SEER Oral Cancer Survival Calculator.

Alongside data from the SEER database, the calculator used data from the National Health Interview Survey’s Longitudinal Mortality Files to obtain estimates of general health status, life expectancy without cancer, and the probability of dying from the cancer or from other causes within 1-10 years among people with newly diagnosed oral cancer.

Overall, the data included 22,392 patients, aged 20-94, with oral squamous cell carcinoma, 60.5% of whom were male and 78% White, as well as 402,626 interviewees from the survey. The calculator did not include patients with tonsil- or tongue-based cancers, which were not considered anatomically part of the oral cavity.

The most common conditions coexisting with oral cancer were diabetes and chronic obstructive pulmonary disease among older patients. Among those with oral cancer, more than half (52.8%) had none of the major coexisting conditions, which also included peripheral and cerebrovascular disease, compared with 80% of the Medicare population.

The researchers described and validated four models – one that estimated the probability of death due to oral cancer, and then three others that estimated the probability of death from other causes, with variations based on the specific data and covariates included.

Overall, the models in the calculator estimated that patients with oral cancer have a higher risk of death from other causes, compared with the general population, and survival estimates for noncancer causes got worse with more advanced cancer stage.

For instance, for a patient diagnosed with stage 3 oral cancer after age 50, the chances of being alive at age 70 were 60% for females and 44% for males in the absence of cancer, whereas the corresponding survival estimates in the general U.S. population were 86% for females and 79% for males – an absolute difference of 26 and 35 percentage points.

One key reason for this trend is that patients with later-stage cancers likely also have more coexisting health conditions, first author Louise Davies, MD, from the Geisel School of Medicine at Dartmouth, Lebanon, N.H., explained.

Another reason: For cancers with low enough mortality rates, people might be more likely to die from causes other than their cancer. This can also occur in ductal carcinoma in situ breast cancer or papillary thyroid cancer, noted Dr. Davies, also from the Department of Veterans Affairs Medical Center, White River Junction, Vt.

Commenting on the study, Eric Moore, MD, a head and neck surgeon with the Mayo Clinic in Rochester, Minn., said that while such prediction tools are important, they also come with caveats.

“I think these calculators are helpful and certainly having them widely available to people gives them another piece of knowledge that can be powerful,” he told this news organization. “But you want to make sure you don’t interpret them as the end-all, be-all message, because there are an infinite number of variables that could influence survival that aren’t available in some of these datasets.”

Neil D. Gross, MD, a professor of head and neck surgery at the University of Texas MD Anderson Cancer Center, Houston, agreed. Although this new calculator uses a large dataset, such tools “can be imperfect” and some factors simply can’t be calculated, such as a person’s priorities, Dr. Gross said.

That’s why there’s no substitute for having a “very personal discussion between a patient and a physician to decide what’s best.” And this calculator is just one tool to help with that process, Dr. Gross said.

The commentary authors echoed these sentiments. “This calculator can potentially bridge the gaps between the survival estimates in the literature, life tables, clinical gestalt, and physician attempts to contextualize the inherent limitations of applying survival curves and averages to the one patient with the diagnosis,” wrote Leila J. Mady, MD, PhD, MPH, Wayne M. Koch, MD, and Carole Fakhry, MD, MPH, all from Johns Hopkins School of Medicine, Baltimore.

But a caveat in providing such predictions is the possible psychological effect the news can have.

“Potential risks of revealing personalized prognostic survival estimates to patients include increased anxiety and distress surrounding competing causes of death [and] misinterpretation of data,” the commentary authors cautioned, adding that “we must present such information with grace and sensitivity.”

Dr. Davies recommends that clinicians ask patients what they want to know because that will vary by patient and potentially over time for the same patient.

“People are more than their cancer diagnosis,” said Dr. Davies. “Giving them the opportunity to consider their life as a whole is the aim.”

The oral cancer calculator can be publicly accessed through the National Cancer Institute. The study was supported by the Department of Veterans Affairs and the National Cancer Institute as part of an interagency agreement. The authors report no relevant financial relationships.
 

A version of this article appeared on Medscape.com.

The National Cancer Institute recently released a publicly available oral cancer survival calculator for people recently diagnosed with oral cancer.

This represents the first cancer survival calculator that provides “personalized estimates of the likelihood of surviving or dying from oral cancer or other causes,” according to the experts who developed the tool.

An analysis evaluating the new calculator revealed that people with oral cancer are more likely to die from other causes, compared with their peers without oral cancer, and that noncancer survival worsens with cancer stage.

With its unique design, the calculator “represents perhaps one of the most sophisticated and comprehensive tools to date by integrating multiple population-level data sources to account for general health status [and] disease exposures,” such as alcohol and tobacco, socioeconomic status, and coexisting conditions, the authors of an accompanying commentary wrote.

This calculator may just be the beginning. The broader aim of developing the tool, the study authors explained, is for this new calculator approach to be “applicable for developing future prognostic models of cancer and noncancer aspects of a person’s health in other cancers.”

The analysis was published in JAMA Otolaryngology–Head and Neck Surgery.

When assessing survival, factors such as cancer stage and tumor size are key, but comorbidities also play a crucial role. For oral cancer in particular, where alcohol and tobacco use are notorious risk factors, comorbidities occur frequently and are often serious.

To create a model that provides more “holistic and personalized” estimates and includes a host of factors that can affect the risk of death, the authors tapped into data from the Surveillance, Epidemiology, and End Results database to develop the SEER Oral Cancer Survival Calculator.

Alongside data from the SEER database, the calculator used data from the National Health Interview Survey’s Longitudinal Mortality Files to obtain estimates of general health status, life expectancy without cancer, and the probability of dying from the cancer or from other causes within 1-10 years among people with newly diagnosed oral cancer.

Overall, the data included 22,392 patients, aged 20-94, with oral squamous cell carcinoma, 60.5% of whom were male and 78% White, as well as 402,626 interviewees from the survey. The calculator did not include patients with tonsil- or tongue-based cancers, which were not considered anatomically part of the oral cavity.

The most common conditions coexisting with oral cancer were diabetes and chronic obstructive pulmonary disease among older patients. Among those with oral cancer, more than half (52.8%) had none of the major coexisting conditions, which also included peripheral and cerebrovascular disease, compared with 80% of the Medicare population.

The researchers described and validated four models – one that estimated the probability of death due to oral cancer, and then three others that estimated the probability of death from other causes, with variations based on the specific data and covariates included.

Overall, the models in the calculator estimated that patients with oral cancer have a higher risk of death from other causes, compared with the general population, and survival estimates for noncancer causes got worse with more advanced cancer stage.

For instance, for a patient diagnosed with stage 3 oral cancer after age 50, the chances of being alive at age 70 were 60% for females and 44% for males in the absence of cancer, whereas the corresponding survival estimates in the general U.S. population were 86% for females and 79% for males – an absolute difference of 26 and 35 percentage points.

One key reason for this trend is that patients with later-stage cancers likely also have more coexisting health conditions, first author Louise Davies, MD, from the Geisel School of Medicine at Dartmouth, Lebanon, N.H., explained.

Another reason: For cancers with low enough mortality rates, people might be more likely to die from causes other than their cancer. This can also occur in ductal carcinoma in situ breast cancer or papillary thyroid cancer, noted Dr. Davies, also from the Department of Veterans Affairs Medical Center, White River Junction, Vt.

Commenting on the study, Eric Moore, MD, a head and neck surgeon with the Mayo Clinic in Rochester, Minn., said that while such prediction tools are important, they also come with caveats.

“I think these calculators are helpful and certainly having them widely available to people gives them another piece of knowledge that can be powerful,” he told this news organization. “But you want to make sure you don’t interpret them as the end-all, be-all message, because there are an infinite number of variables that could influence survival that aren’t available in some of these datasets.”

Neil D. Gross, MD, a professor of head and neck surgery at the University of Texas MD Anderson Cancer Center, Houston, agreed. Although this new calculator uses a large dataset, such tools “can be imperfect” and some factors simply can’t be calculated, such as a person’s priorities, Dr. Gross said.

That’s why there’s no substitute for having a “very personal discussion between a patient and a physician to decide what’s best.” And this calculator is just one tool to help with that process, Dr. Gross said.

The commentary authors echoed these sentiments. “This calculator can potentially bridge the gaps between the survival estimates in the literature, life tables, clinical gestalt, and physician attempts to contextualize the inherent limitations of applying survival curves and averages to the one patient with the diagnosis,” wrote Leila J. Mady, MD, PhD, MPH, Wayne M. Koch, MD, and Carole Fakhry, MD, MPH, all from Johns Hopkins School of Medicine, Baltimore.

But a caveat in providing such predictions is the possible psychological effect the news can have.

“Potential risks of revealing personalized prognostic survival estimates to patients include increased anxiety and distress surrounding competing causes of death [and] misinterpretation of data,” the commentary authors cautioned, adding that “we must present such information with grace and sensitivity.”

Dr. Davies recommends that clinicians ask patients what they want to know because that will vary by patient and potentially over time for the same patient.

“People are more than their cancer diagnosis,” said Dr. Davies. “Giving them the opportunity to consider their life as a whole is the aim.”

The oral cancer calculator can be publicly accessed through the National Cancer Institute. The study was supported by the Department of Veterans Affairs and the National Cancer Institute as part of an interagency agreement. The authors report no relevant financial relationships.
 

A version of this article appeared on Medscape.com.

Dysphagia is one of the most common side effects of radiation for head and neck cancer and can be so bad that patients require a permanent gastrostomy tube for feeding.

A team of British investigators are now reporting a new strategy to help lessen this problem.

In the trial, the approach – dubbed dysphagia-optimized intensity-modulated radiotherapy (DO-IMRT) – reduced incidental radiation to the pharyngeal constrictor muscles responsible for swallowing during IMRT for pharyngeal cancer. Patients randomized to DO-IMRT reported significant improvements in swallowing at 1 year, compared with those receiving standard IMRT, at no cost to oncologic outcomes.

Overall, the findings show “DO-IMRT improves patient-reported swallowing function, compared with standard IMRT,” said investigators led by Christopher Nutting, MD, PhD, a head and neck cancer specialist at the Royal Marsden Hospital, London. “DO-IMRT should be considered a new standard of care.”

The team reported the results of their phase 3 trial in The Lancet Oncology.

Swallowing issues affect most patients with head and neck cancer after radiation therapy but strategies to mitigate this long-term adverse effect remain limited.

Dr. Nutting and colleagues wanted to assess whether a novel approach to radiation therapy could reduce the swallowing problems patients often encounter.

In the trial, 112 subjects with T1-4, N0-3, M0 oropharyngeal (90%) or hypopharyngeal cancer (10%) were randomized to standard IMRT or DO-IMRT. Patients received care at 22 radiation therapy centers in Ireland and the UK from 2016 to 2018.

Patients got radiation in 30 fractions over 6 weeks; most also had chemotherapy. The standard IMRT group received 65 Gy to their primary and nodal tumors and 54 Gy to other pharyngeal and nodal areas. In the DO-IMRT group, radiation doses to pharyngeal constrictor muscles lying outside of the tumor target area were limited to 50 Gy.

At 1 year, 56 patients randomized to DO-IMRT scored, on average, 7.2 points higher than the 56 patients randomized to standard IMRT – 77.7 points vs. 70.6 (P = .037) – on the 100-point MD Anderson Dysphagia Inventory (MDADI). MDADI is a validated scale for tracking radiation-induced dysphagia, with higher scores indicating better swallowing function.

The difference grew to 9.8 points when adjusted for chemotherapy use and tumor location and stage.

DO-IMRT patients were also more likely to report eating their normal diet and dining in public. Speech and language therapists who, like patients, were blinded to treatment allocation, reported better outcomes among patients receiving DO-IMRT as well.

At just over 3 years, oncologic outcomes were essentially equivalent in both groups. Two local recurrences occurred in both arms; distant metastatic recurrences occurred in three patients in the DO-IMRT group and two in the standard IMRT group.

The most common grade 3-4 late adverse events were hearing impairment (16% with DO-IMRT vs. 13% with standard IMRT), dry mouth (5% vs. 15%), and dysphagia (5% vs. 15%).

Taken together, the findings indicate that reducing doses to the pharyngeal constrictor muscle translates to “a meaningful benefit for patients” in terms of improved swallowing function, the investigators said.

In an accompanying editorial, Sandra Nuyts, MD, PhD, noted, however, that the trial failed to meet the predefined threshold for clinical significance, a 10-point difference in MDADI scores.

Still, “several other patient-reported and physician-reported secondary endpoints favored DO-IMRT,” explained Dr. Nuyts, a radiation oncologist at the Leuven Cancer Institute, Belgium. Considered alongside positive reports from smaller, nonrandomized studies, “there is now compelling evidence that the risk of dysphagia after head and neck radiotherapy can be reduced with this technology, without increasing the risk of local recurrences.”

The study team and Dr. Nuyts both called for further refinement of the technique, particularly figuring out what specific sections of the constrictor muscles need to be spared to optimize outcomes.

For now, there is a limit on “how much organ sparing can be achieved with the current DO-IMRT technique” because “use of even narrower margins” around the tumor runs the risk of not treating it adequately, investigators said.

The study was funded by Cancer Research UK. Dr. Nutting reports stock options in Advanced Oncotherapy. Another investigator reports institutional grants from Varian, AstraZeneca, Roche, and other companies. Dr. Nuyts reports no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Dysphagia is one of the most common side effects of radiation for head and neck cancer and can be so bad that patients require a permanent gastrostomy tube for feeding.

A team of British investigators are now reporting a new strategy to help lessen this problem.

In the trial, the approach – dubbed dysphagia-optimized intensity-modulated radiotherapy (DO-IMRT) – reduced incidental radiation to the pharyngeal constrictor muscles responsible for swallowing during IMRT for pharyngeal cancer. Patients randomized to DO-IMRT reported significant improvements in swallowing at 1 year, compared with those receiving standard IMRT, at no cost to oncologic outcomes.

Overall, the findings show “DO-IMRT improves patient-reported swallowing function, compared with standard IMRT,” said investigators led by Christopher Nutting, MD, PhD, a head and neck cancer specialist at the Royal Marsden Hospital, London. “DO-IMRT should be considered a new standard of care.”

The team reported the results of their phase 3 trial in The Lancet Oncology.

Swallowing issues affect most patients with head and neck cancer after radiation therapy but strategies to mitigate this long-term adverse effect remain limited.

Dr. Nutting and colleagues wanted to assess whether a novel approach to radiation therapy could reduce the swallowing problems patients often encounter.

In the trial, 112 subjects with T1-4, N0-3, M0 oropharyngeal (90%) or hypopharyngeal cancer (10%) were randomized to standard IMRT or DO-IMRT. Patients received care at 22 radiation therapy centers in Ireland and the UK from 2016 to 2018.

Patients got radiation in 30 fractions over 6 weeks; most also had chemotherapy. The standard IMRT group received 65 Gy to their primary and nodal tumors and 54 Gy to other pharyngeal and nodal areas. In the DO-IMRT group, radiation doses to pharyngeal constrictor muscles lying outside of the tumor target area were limited to 50 Gy.

At 1 year, 56 patients randomized to DO-IMRT scored, on average, 7.2 points higher than the 56 patients randomized to standard IMRT – 77.7 points vs. 70.6 (P = .037) – on the 100-point MD Anderson Dysphagia Inventory (MDADI). MDADI is a validated scale for tracking radiation-induced dysphagia, with higher scores indicating better swallowing function.

The difference grew to 9.8 points when adjusted for chemotherapy use and tumor location and stage.

DO-IMRT patients were also more likely to report eating their normal diet and dining in public. Speech and language therapists who, like patients, were blinded to treatment allocation, reported better outcomes among patients receiving DO-IMRT as well.

At just over 3 years, oncologic outcomes were essentially equivalent in both groups. Two local recurrences occurred in both arms; distant metastatic recurrences occurred in three patients in the DO-IMRT group and two in the standard IMRT group.

The most common grade 3-4 late adverse events were hearing impairment (16% with DO-IMRT vs. 13% with standard IMRT), dry mouth (5% vs. 15%), and dysphagia (5% vs. 15%).

Taken together, the findings indicate that reducing doses to the pharyngeal constrictor muscle translates to “a meaningful benefit for patients” in terms of improved swallowing function, the investigators said.

In an accompanying editorial, Sandra Nuyts, MD, PhD, noted, however, that the trial failed to meet the predefined threshold for clinical significance, a 10-point difference in MDADI scores.

Still, “several other patient-reported and physician-reported secondary endpoints favored DO-IMRT,” explained Dr. Nuyts, a radiation oncologist at the Leuven Cancer Institute, Belgium. Considered alongside positive reports from smaller, nonrandomized studies, “there is now compelling evidence that the risk of dysphagia after head and neck radiotherapy can be reduced with this technology, without increasing the risk of local recurrences.”

The study team and Dr. Nuyts both called for further refinement of the technique, particularly figuring out what specific sections of the constrictor muscles need to be spared to optimize outcomes.

For now, there is a limit on “how much organ sparing can be achieved with the current DO-IMRT technique” because “use of even narrower margins” around the tumor runs the risk of not treating it adequately, investigators said.

The study was funded by Cancer Research UK. Dr. Nutting reports stock options in Advanced Oncotherapy. Another investigator reports institutional grants from Varian, AstraZeneca, Roche, and other companies. Dr. Nuyts reports no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Dysphagia is one of the most common side effects of radiation for head and neck cancer and can be so bad that patients require a permanent gastrostomy tube for feeding.

A team of British investigators are now reporting a new strategy to help lessen this problem.

In the trial, the approach – dubbed dysphagia-optimized intensity-modulated radiotherapy (DO-IMRT) – reduced incidental radiation to the pharyngeal constrictor muscles responsible for swallowing during IMRT for pharyngeal cancer. Patients randomized to DO-IMRT reported significant improvements in swallowing at 1 year, compared with those receiving standard IMRT, at no cost to oncologic outcomes.

Overall, the findings show “DO-IMRT improves patient-reported swallowing function, compared with standard IMRT,” said investigators led by Christopher Nutting, MD, PhD, a head and neck cancer specialist at the Royal Marsden Hospital, London. “DO-IMRT should be considered a new standard of care.”

The team reported the results of their phase 3 trial in The Lancet Oncology.

Swallowing issues affect most patients with head and neck cancer after radiation therapy but strategies to mitigate this long-term adverse effect remain limited.

Dr. Nutting and colleagues wanted to assess whether a novel approach to radiation therapy could reduce the swallowing problems patients often encounter.

In the trial, 112 subjects with T1-4, N0-3, M0 oropharyngeal (90%) or hypopharyngeal cancer (10%) were randomized to standard IMRT or DO-IMRT. Patients received care at 22 radiation therapy centers in Ireland and the UK from 2016 to 2018.

Patients got radiation in 30 fractions over 6 weeks; most also had chemotherapy. The standard IMRT group received 65 Gy to their primary and nodal tumors and 54 Gy to other pharyngeal and nodal areas. In the DO-IMRT group, radiation doses to pharyngeal constrictor muscles lying outside of the tumor target area were limited to 50 Gy.

At 1 year, 56 patients randomized to DO-IMRT scored, on average, 7.2 points higher than the 56 patients randomized to standard IMRT – 77.7 points vs. 70.6 (P = .037) – on the 100-point MD Anderson Dysphagia Inventory (MDADI). MDADI is a validated scale for tracking radiation-induced dysphagia, with higher scores indicating better swallowing function.

The difference grew to 9.8 points when adjusted for chemotherapy use and tumor location and stage.

DO-IMRT patients were also more likely to report eating their normal diet and dining in public. Speech and language therapists who, like patients, were blinded to treatment allocation, reported better outcomes among patients receiving DO-IMRT as well.

At just over 3 years, oncologic outcomes were essentially equivalent in both groups. Two local recurrences occurred in both arms; distant metastatic recurrences occurred in three patients in the DO-IMRT group and two in the standard IMRT group.

The most common grade 3-4 late adverse events were hearing impairment (16% with DO-IMRT vs. 13% with standard IMRT), dry mouth (5% vs. 15%), and dysphagia (5% vs. 15%).

Taken together, the findings indicate that reducing doses to the pharyngeal constrictor muscle translates to “a meaningful benefit for patients” in terms of improved swallowing function, the investigators said.

In an accompanying editorial, Sandra Nuyts, MD, PhD, noted, however, that the trial failed to meet the predefined threshold for clinical significance, a 10-point difference in MDADI scores.

Still, “several other patient-reported and physician-reported secondary endpoints favored DO-IMRT,” explained Dr. Nuyts, a radiation oncologist at the Leuven Cancer Institute, Belgium. Considered alongside positive reports from smaller, nonrandomized studies, “there is now compelling evidence that the risk of dysphagia after head and neck radiotherapy can be reduced with this technology, without increasing the risk of local recurrences.”

The study team and Dr. Nuyts both called for further refinement of the technique, particularly figuring out what specific sections of the constrictor muscles need to be spared to optimize outcomes.

For now, there is a limit on “how much organ sparing can be achieved with the current DO-IMRT technique” because “use of even narrower margins” around the tumor runs the risk of not treating it adequately, investigators said.

The study was funded by Cancer Research UK. Dr. Nutting reports stock options in Advanced Oncotherapy. Another investigator reports institutional grants from Varian, AstraZeneca, Roche, and other companies. Dr. Nuyts reports no relevant financial relationships.

A version of this article first appeared on Medscape.com.