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63% of patients with upper tract urothelial carcinoma respond to chemo before surgery
They made the call after finding that 63% of patients (36/57) had a pathologic response to gemcitabine/cisplatin before extirpative surgery, with pathologic response defined as less than pT2NO disease on postoperative pathology. Nineteen percent (11/57) had complete responses, with no evidence of the main tumor (ypT0N0).
The approach has a “favorable pathologic response, is well tolerated ... and thus should be considered a new standard of care option,” said investigators led by Wesley Yip, MD, a urologic oncology fellow at Memorial Sloan Kettering Cancer Center, New York.
There was no comparator arm, but the results are in line with previous reports, including a 2014 investigation that found a 5-year disease specific survival (DSS) of 90.1% and 5-year overall survival (OS) of 80.2% among 31 upper tract urothelial carcinoma patients who received neoadjuvant chemotherapy, versus a 5-year DSS and OS of 57.6% among 81 historical controls.
Presentation moderator Stephen Boorjian, MD, chair of urology at the Mayo Clinic in Rochester, Minn., called the findings “valuable” but noted there’s level 1 evidence for an alternative approach, chemotherapy or nivolumab after surgery for patients with particularly worrisome postop pathology. It makes it tough to know if patients should be treated beforehand or afterwards.
“What do we do?” he asked.
Dr. Yip said it’s an open question at this point but that trials are underway to address the issue. In the meantime, “it’s definitely a multidisciplinary discussion to know what’s best for each patient,” he said. One of the factors that argues for the neoadjuvant approach is that substantially fewer patients are eligible for chemotherapy after nephroureterectomy because of diminished renal function. “Patients who might not be eligible ... are the ones we’d be targeting for” neoadjuvant chemotherapy (NAC), he said.
In the study, gemcitabine 1000 mg/m2 and cisplatin 35 mg/m2 were administered on days 1 and 8 of four 21-day cycles, followed by radical nephroureterectomy or ureterectomy.
Fifty-three of the subjects had high-grade disease by endoscopic biopsy, and the remaining four were enrolled based on imaging and selective cytology. There was no nodal disease on CT within 30 days of neoadjuvant chemotherapy initiation.
Two-year progression-free survival (PFS) was 91% among pathologic responders but only 52% among nonresponders. Every responder was alive at 2 years versus 80% of nonresponders.
Across the entire cohort, 5-year PFS was 61% and 5-year OS 79%; 89.5% of patients were alive at a median follow-up of 3.5 years.
Almost all of the patients completed at least three NAC cycles, and all of them went to surgery, which had a 90-day grade 3 or higher complication rate of 7%.
Sixty-three percent were men, and 95% were White. The median age was 66 years.
The work was funded by the National Institutes of Health and Memorial Sloan Kettering. Dr. Yip had no disclosures. Dr. Boorjian advises ArTara Therapeutics, FerGene, and Ferring.
They made the call after finding that 63% of patients (36/57) had a pathologic response to gemcitabine/cisplatin before extirpative surgery, with pathologic response defined as less than pT2NO disease on postoperative pathology. Nineteen percent (11/57) had complete responses, with no evidence of the main tumor (ypT0N0).
The approach has a “favorable pathologic response, is well tolerated ... and thus should be considered a new standard of care option,” said investigators led by Wesley Yip, MD, a urologic oncology fellow at Memorial Sloan Kettering Cancer Center, New York.
There was no comparator arm, but the results are in line with previous reports, including a 2014 investigation that found a 5-year disease specific survival (DSS) of 90.1% and 5-year overall survival (OS) of 80.2% among 31 upper tract urothelial carcinoma patients who received neoadjuvant chemotherapy, versus a 5-year DSS and OS of 57.6% among 81 historical controls.
Presentation moderator Stephen Boorjian, MD, chair of urology at the Mayo Clinic in Rochester, Minn., called the findings “valuable” but noted there’s level 1 evidence for an alternative approach, chemotherapy or nivolumab after surgery for patients with particularly worrisome postop pathology. It makes it tough to know if patients should be treated beforehand or afterwards.
“What do we do?” he asked.
Dr. Yip said it’s an open question at this point but that trials are underway to address the issue. In the meantime, “it’s definitely a multidisciplinary discussion to know what’s best for each patient,” he said. One of the factors that argues for the neoadjuvant approach is that substantially fewer patients are eligible for chemotherapy after nephroureterectomy because of diminished renal function. “Patients who might not be eligible ... are the ones we’d be targeting for” neoadjuvant chemotherapy (NAC), he said.
In the study, gemcitabine 1000 mg/m2 and cisplatin 35 mg/m2 were administered on days 1 and 8 of four 21-day cycles, followed by radical nephroureterectomy or ureterectomy.
Fifty-three of the subjects had high-grade disease by endoscopic biopsy, and the remaining four were enrolled based on imaging and selective cytology. There was no nodal disease on CT within 30 days of neoadjuvant chemotherapy initiation.
Two-year progression-free survival (PFS) was 91% among pathologic responders but only 52% among nonresponders. Every responder was alive at 2 years versus 80% of nonresponders.
Across the entire cohort, 5-year PFS was 61% and 5-year OS 79%; 89.5% of patients were alive at a median follow-up of 3.5 years.
Almost all of the patients completed at least three NAC cycles, and all of them went to surgery, which had a 90-day grade 3 or higher complication rate of 7%.
Sixty-three percent were men, and 95% were White. The median age was 66 years.
The work was funded by the National Institutes of Health and Memorial Sloan Kettering. Dr. Yip had no disclosures. Dr. Boorjian advises ArTara Therapeutics, FerGene, and Ferring.
They made the call after finding that 63% of patients (36/57) had a pathologic response to gemcitabine/cisplatin before extirpative surgery, with pathologic response defined as less than pT2NO disease on postoperative pathology. Nineteen percent (11/57) had complete responses, with no evidence of the main tumor (ypT0N0).
The approach has a “favorable pathologic response, is well tolerated ... and thus should be considered a new standard of care option,” said investigators led by Wesley Yip, MD, a urologic oncology fellow at Memorial Sloan Kettering Cancer Center, New York.
There was no comparator arm, but the results are in line with previous reports, including a 2014 investigation that found a 5-year disease specific survival (DSS) of 90.1% and 5-year overall survival (OS) of 80.2% among 31 upper tract urothelial carcinoma patients who received neoadjuvant chemotherapy, versus a 5-year DSS and OS of 57.6% among 81 historical controls.
Presentation moderator Stephen Boorjian, MD, chair of urology at the Mayo Clinic in Rochester, Minn., called the findings “valuable” but noted there’s level 1 evidence for an alternative approach, chemotherapy or nivolumab after surgery for patients with particularly worrisome postop pathology. It makes it tough to know if patients should be treated beforehand or afterwards.
“What do we do?” he asked.
Dr. Yip said it’s an open question at this point but that trials are underway to address the issue. In the meantime, “it’s definitely a multidisciplinary discussion to know what’s best for each patient,” he said. One of the factors that argues for the neoadjuvant approach is that substantially fewer patients are eligible for chemotherapy after nephroureterectomy because of diminished renal function. “Patients who might not be eligible ... are the ones we’d be targeting for” neoadjuvant chemotherapy (NAC), he said.
In the study, gemcitabine 1000 mg/m2 and cisplatin 35 mg/m2 were administered on days 1 and 8 of four 21-day cycles, followed by radical nephroureterectomy or ureterectomy.
Fifty-three of the subjects had high-grade disease by endoscopic biopsy, and the remaining four were enrolled based on imaging and selective cytology. There was no nodal disease on CT within 30 days of neoadjuvant chemotherapy initiation.
Two-year progression-free survival (PFS) was 91% among pathologic responders but only 52% among nonresponders. Every responder was alive at 2 years versus 80% of nonresponders.
Across the entire cohort, 5-year PFS was 61% and 5-year OS 79%; 89.5% of patients were alive at a median follow-up of 3.5 years.
Almost all of the patients completed at least three NAC cycles, and all of them went to surgery, which had a 90-day grade 3 or higher complication rate of 7%.
Sixty-three percent were men, and 95% were White. The median age was 66 years.
The work was funded by the National Institutes of Health and Memorial Sloan Kettering. Dr. Yip had no disclosures. Dr. Boorjian advises ArTara Therapeutics, FerGene, and Ferring.
ASCO GU 2022
Radiofrequency ablation an option for thyroid microcarcinoma
(PTC) when measures beyond active surveillance are warranted, results from a new review show.
“The results in the current study suggest that RFA could function as a useful alternative treatment strategy in which patients are treated minimally invasively with curative intentions,” reported the authors of the meta-analysis published online in JAMA Otolaryngology – Head and Neck Surgery.
Commenting on the research, Joanna Klubo-Gwiezdzinska, MD, PhD, said the work offers useful evidence on the potential role for RFA in low-risk micro-PTC – with some notable caveats.
“I agree that RFA might be a good option for patients unwilling or unable to accept active surveillance and for patients who are at high surgical risk because of comorbid conditions,” she told this news organization.
However, “RFA for patients with an evidence of nodule growth requires more data to be analyzed and a longer follow-up period in lieu of the fact that 21% of nodules subjected to RFA did not disappear, based on the data the authors provide,” noted Dr. Klubo-Gwiezdzinska, who is acting chief of thyroid tumors and functional thyroid disorders at the National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, in Bethesda, Md.
When active surveillance isn’t enough
Microcarcinoma PTC, defined as measuring 10 mm or less, is highly common, making up approximately half of papillary thyroid cancers diagnosed in some countries, and the outcomes of those cancers are excellent, with disease-specific survival of more than 99% after 10 years.
Guidelines in the United States and Europe typically recommend surgery (lobectomy) as a standard treatment for thyroid cancer, however, with many of the low-risk microcarcinomas remaining indolent and never progressing to the point of requiring treatment over a person’s lifetime, some also recommend considering active surveillance, or watchful waiting, for those lower-risk cancers.
In situations such as evidence of tumor growth during active surveillance, some countries, particularly Asian countries, also suggest considering thermal ablation techniques, including RFA, as an alternative to surgery, with key benefits including lower costs and potentially a lower risk of complications, compared with surgical lobectomy.
Otherwise, RFA is more typically reserved for benign nodules, recurrent PTC, or inoperable disease.
New meta-analysis
To investigate reported outcomes with RFA specifically in the treatment of microcarcinoma PTC, the authors, led by Sam P.J. van Dijk, BSc, of University Medical Center Rotterdam (the Netherlands), identified 15 studies published after 2016 involving 1,770 adult patients and 1,822 tumors who received RFA for the treatment of low-risk PTC microcarcinomas, defined as measuring 10 mm or less.
The studies were conducted in China and South Korea, where RFA is more commonly used in low-risk microcarcinoma PTC.
Patients were 77.9% women and a mean age of 45.4 years. The analysis excluded patients with pre-ablation lymph node or distant metastases, recurrence of disease, or extrathyroidal extension.
Of the 1,822 tumors treated with RFA, 49 required an additional RFA treatment and 1 tumor had two additional treatments.
With a mean follow-up of 33 months (range, 6-131 months), the primary outcome of the pooled rate of complete disappearance of microcarcinoma PTC on ultrasonography was 79%.
The overall rate of tumor progression was 1.5% (26 patients), and local residual microcarcinoma PTC occurred in 0.4% (7 tumors).
New microcarcinoma PTC occurred in 0.9% (15) of patients; 0.2% (4) developed lymph node metastases during follow-up, and no distant metastases were observed.
Minor complications occurred in 45 patients, and there were three major complications, including two voice changes that lasted more than 2 months and one cardiac arrhythmia.
“This study suggests that radiofrequency ablation is a safe and efficient method to treat selected low-risk papillary microcarcinoma of the thyroid,” the researchers said.
Questions surrounding the 20% of patients who still had residual nodules
While the analysis did not include direct comparisons between RFA and lobectomy, Dr. Klubo-Gwiezdzinska noted that, in general, “RFA appears to be associated with a lower complication rate compared with surgery, but also lower efficacy, with 21% of patients with residual nodules.”
The results raise the question of whether “all of the residual lesions are associated with persistent disease, and, if so, do they warrant further intervention?” she added.
To that point, the authors noted that only seven (0.4%) of the 21% of patients with persistent nodules showed residual microcarcinoma PTC cells after RFA, a fact that underscores that “the assessment of tumor response in patients with mPTC after RFA is complicated,” they wrote.
A key concern with assessing responses in RFA is that fine needle aspiration has been shown to have reduced diagnostic accuracy following treatment due to insufficient cellularity in the ablation area, the authors noted.
They add that core needle biopsy is believed to have higher accuracy.
While commenting that the analysis used the “best standards,” Dr. Klubo-Gwiezdzinska noted the caveat that it provides “low- to moderate-quality evidence as it included either case series or retrospective cohort studies, characterized by an inherent bias associated with these study designs.”
And as the authors also acknowledge, possible overlap in the included cohorts “could mean that sample sizes might be smaller than reported,” Dr. Klubo-Gwiezdzinska commented.
To further evaluate the pros and cons of RFA, the authors suggested that “future studies may focus on improving complete disappearance rates of the tumor volume, possibly with more advanced or longer RFA procedures.”
RFA an option for some patients
In the meantime, senior author Tessa M. van Ginhoven, MD, PhD, of the department of surgical oncology and gastrointestinal surgery, Erasmus MC Cancer Institute, University Medical Centre Rotterdam, suggests that, in addition to cases of local tumor growth, possible uses of RFA for micro-PTC could include situations of patient anxiety due to active surveillance.
“If active surveillance is appropriate for your population, but the patient is anxious and prefers lobectomy, one could envision RFA as a possible adjunct to active surveillance,” she told this news organization.
The authors and Dr. Klubo-Gwiezdzinska reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
(PTC) when measures beyond active surveillance are warranted, results from a new review show.
“The results in the current study suggest that RFA could function as a useful alternative treatment strategy in which patients are treated minimally invasively with curative intentions,” reported the authors of the meta-analysis published online in JAMA Otolaryngology – Head and Neck Surgery.
Commenting on the research, Joanna Klubo-Gwiezdzinska, MD, PhD, said the work offers useful evidence on the potential role for RFA in low-risk micro-PTC – with some notable caveats.
“I agree that RFA might be a good option for patients unwilling or unable to accept active surveillance and for patients who are at high surgical risk because of comorbid conditions,” she told this news organization.
However, “RFA for patients with an evidence of nodule growth requires more data to be analyzed and a longer follow-up period in lieu of the fact that 21% of nodules subjected to RFA did not disappear, based on the data the authors provide,” noted Dr. Klubo-Gwiezdzinska, who is acting chief of thyroid tumors and functional thyroid disorders at the National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, in Bethesda, Md.
When active surveillance isn’t enough
Microcarcinoma PTC, defined as measuring 10 mm or less, is highly common, making up approximately half of papillary thyroid cancers diagnosed in some countries, and the outcomes of those cancers are excellent, with disease-specific survival of more than 99% after 10 years.
Guidelines in the United States and Europe typically recommend surgery (lobectomy) as a standard treatment for thyroid cancer, however, with many of the low-risk microcarcinomas remaining indolent and never progressing to the point of requiring treatment over a person’s lifetime, some also recommend considering active surveillance, or watchful waiting, for those lower-risk cancers.
In situations such as evidence of tumor growth during active surveillance, some countries, particularly Asian countries, also suggest considering thermal ablation techniques, including RFA, as an alternative to surgery, with key benefits including lower costs and potentially a lower risk of complications, compared with surgical lobectomy.
Otherwise, RFA is more typically reserved for benign nodules, recurrent PTC, or inoperable disease.
New meta-analysis
To investigate reported outcomes with RFA specifically in the treatment of microcarcinoma PTC, the authors, led by Sam P.J. van Dijk, BSc, of University Medical Center Rotterdam (the Netherlands), identified 15 studies published after 2016 involving 1,770 adult patients and 1,822 tumors who received RFA for the treatment of low-risk PTC microcarcinomas, defined as measuring 10 mm or less.
The studies were conducted in China and South Korea, where RFA is more commonly used in low-risk microcarcinoma PTC.
Patients were 77.9% women and a mean age of 45.4 years. The analysis excluded patients with pre-ablation lymph node or distant metastases, recurrence of disease, or extrathyroidal extension.
Of the 1,822 tumors treated with RFA, 49 required an additional RFA treatment and 1 tumor had two additional treatments.
With a mean follow-up of 33 months (range, 6-131 months), the primary outcome of the pooled rate of complete disappearance of microcarcinoma PTC on ultrasonography was 79%.
The overall rate of tumor progression was 1.5% (26 patients), and local residual microcarcinoma PTC occurred in 0.4% (7 tumors).
New microcarcinoma PTC occurred in 0.9% (15) of patients; 0.2% (4) developed lymph node metastases during follow-up, and no distant metastases were observed.
Minor complications occurred in 45 patients, and there were three major complications, including two voice changes that lasted more than 2 months and one cardiac arrhythmia.
“This study suggests that radiofrequency ablation is a safe and efficient method to treat selected low-risk papillary microcarcinoma of the thyroid,” the researchers said.
Questions surrounding the 20% of patients who still had residual nodules
While the analysis did not include direct comparisons between RFA and lobectomy, Dr. Klubo-Gwiezdzinska noted that, in general, “RFA appears to be associated with a lower complication rate compared with surgery, but also lower efficacy, with 21% of patients with residual nodules.”
The results raise the question of whether “all of the residual lesions are associated with persistent disease, and, if so, do they warrant further intervention?” she added.
To that point, the authors noted that only seven (0.4%) of the 21% of patients with persistent nodules showed residual microcarcinoma PTC cells after RFA, a fact that underscores that “the assessment of tumor response in patients with mPTC after RFA is complicated,” they wrote.
A key concern with assessing responses in RFA is that fine needle aspiration has been shown to have reduced diagnostic accuracy following treatment due to insufficient cellularity in the ablation area, the authors noted.
They add that core needle biopsy is believed to have higher accuracy.
While commenting that the analysis used the “best standards,” Dr. Klubo-Gwiezdzinska noted the caveat that it provides “low- to moderate-quality evidence as it included either case series or retrospective cohort studies, characterized by an inherent bias associated with these study designs.”
And as the authors also acknowledge, possible overlap in the included cohorts “could mean that sample sizes might be smaller than reported,” Dr. Klubo-Gwiezdzinska commented.
To further evaluate the pros and cons of RFA, the authors suggested that “future studies may focus on improving complete disappearance rates of the tumor volume, possibly with more advanced or longer RFA procedures.”
RFA an option for some patients
In the meantime, senior author Tessa M. van Ginhoven, MD, PhD, of the department of surgical oncology and gastrointestinal surgery, Erasmus MC Cancer Institute, University Medical Centre Rotterdam, suggests that, in addition to cases of local tumor growth, possible uses of RFA for micro-PTC could include situations of patient anxiety due to active surveillance.
“If active surveillance is appropriate for your population, but the patient is anxious and prefers lobectomy, one could envision RFA as a possible adjunct to active surveillance,” she told this news organization.
The authors and Dr. Klubo-Gwiezdzinska reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
(PTC) when measures beyond active surveillance are warranted, results from a new review show.
“The results in the current study suggest that RFA could function as a useful alternative treatment strategy in which patients are treated minimally invasively with curative intentions,” reported the authors of the meta-analysis published online in JAMA Otolaryngology – Head and Neck Surgery.
Commenting on the research, Joanna Klubo-Gwiezdzinska, MD, PhD, said the work offers useful evidence on the potential role for RFA in low-risk micro-PTC – with some notable caveats.
“I agree that RFA might be a good option for patients unwilling or unable to accept active surveillance and for patients who are at high surgical risk because of comorbid conditions,” she told this news organization.
However, “RFA for patients with an evidence of nodule growth requires more data to be analyzed and a longer follow-up period in lieu of the fact that 21% of nodules subjected to RFA did not disappear, based on the data the authors provide,” noted Dr. Klubo-Gwiezdzinska, who is acting chief of thyroid tumors and functional thyroid disorders at the National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, in Bethesda, Md.
When active surveillance isn’t enough
Microcarcinoma PTC, defined as measuring 10 mm or less, is highly common, making up approximately half of papillary thyroid cancers diagnosed in some countries, and the outcomes of those cancers are excellent, with disease-specific survival of more than 99% after 10 years.
Guidelines in the United States and Europe typically recommend surgery (lobectomy) as a standard treatment for thyroid cancer, however, with many of the low-risk microcarcinomas remaining indolent and never progressing to the point of requiring treatment over a person’s lifetime, some also recommend considering active surveillance, or watchful waiting, for those lower-risk cancers.
In situations such as evidence of tumor growth during active surveillance, some countries, particularly Asian countries, also suggest considering thermal ablation techniques, including RFA, as an alternative to surgery, with key benefits including lower costs and potentially a lower risk of complications, compared with surgical lobectomy.
Otherwise, RFA is more typically reserved for benign nodules, recurrent PTC, or inoperable disease.
New meta-analysis
To investigate reported outcomes with RFA specifically in the treatment of microcarcinoma PTC, the authors, led by Sam P.J. van Dijk, BSc, of University Medical Center Rotterdam (the Netherlands), identified 15 studies published after 2016 involving 1,770 adult patients and 1,822 tumors who received RFA for the treatment of low-risk PTC microcarcinomas, defined as measuring 10 mm or less.
The studies were conducted in China and South Korea, where RFA is more commonly used in low-risk microcarcinoma PTC.
Patients were 77.9% women and a mean age of 45.4 years. The analysis excluded patients with pre-ablation lymph node or distant metastases, recurrence of disease, or extrathyroidal extension.
Of the 1,822 tumors treated with RFA, 49 required an additional RFA treatment and 1 tumor had two additional treatments.
With a mean follow-up of 33 months (range, 6-131 months), the primary outcome of the pooled rate of complete disappearance of microcarcinoma PTC on ultrasonography was 79%.
The overall rate of tumor progression was 1.5% (26 patients), and local residual microcarcinoma PTC occurred in 0.4% (7 tumors).
New microcarcinoma PTC occurred in 0.9% (15) of patients; 0.2% (4) developed lymph node metastases during follow-up, and no distant metastases were observed.
Minor complications occurred in 45 patients, and there were three major complications, including two voice changes that lasted more than 2 months and one cardiac arrhythmia.
“This study suggests that radiofrequency ablation is a safe and efficient method to treat selected low-risk papillary microcarcinoma of the thyroid,” the researchers said.
Questions surrounding the 20% of patients who still had residual nodules
While the analysis did not include direct comparisons between RFA and lobectomy, Dr. Klubo-Gwiezdzinska noted that, in general, “RFA appears to be associated with a lower complication rate compared with surgery, but also lower efficacy, with 21% of patients with residual nodules.”
The results raise the question of whether “all of the residual lesions are associated with persistent disease, and, if so, do they warrant further intervention?” she added.
To that point, the authors noted that only seven (0.4%) of the 21% of patients with persistent nodules showed residual microcarcinoma PTC cells after RFA, a fact that underscores that “the assessment of tumor response in patients with mPTC after RFA is complicated,” they wrote.
A key concern with assessing responses in RFA is that fine needle aspiration has been shown to have reduced diagnostic accuracy following treatment due to insufficient cellularity in the ablation area, the authors noted.
They add that core needle biopsy is believed to have higher accuracy.
While commenting that the analysis used the “best standards,” Dr. Klubo-Gwiezdzinska noted the caveat that it provides “low- to moderate-quality evidence as it included either case series or retrospective cohort studies, characterized by an inherent bias associated with these study designs.”
And as the authors also acknowledge, possible overlap in the included cohorts “could mean that sample sizes might be smaller than reported,” Dr. Klubo-Gwiezdzinska commented.
To further evaluate the pros and cons of RFA, the authors suggested that “future studies may focus on improving complete disappearance rates of the tumor volume, possibly with more advanced or longer RFA procedures.”
RFA an option for some patients
In the meantime, senior author Tessa M. van Ginhoven, MD, PhD, of the department of surgical oncology and gastrointestinal surgery, Erasmus MC Cancer Institute, University Medical Centre Rotterdam, suggests that, in addition to cases of local tumor growth, possible uses of RFA for micro-PTC could include situations of patient anxiety due to active surveillance.
“If active surveillance is appropriate for your population, but the patient is anxious and prefers lobectomy, one could envision RFA as a possible adjunct to active surveillance,” she told this news organization.
The authors and Dr. Klubo-Gwiezdzinska reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Variants of nine breast cancer genes associated with severe disease
Breast cancer risk genes are generally associated with triple-negative and high-grade disease, but differ substantially in their associated pathology, a large case-control analysis shows.
The findings have potential implications for genetic testing, risk prediction, variant classification, and screening, the authors noted.
To assess links between pathogenic germline variants in nine major breast cancer (BC) susceptibility genes and pathological features of nonmetastasized breast tumors, investigators from the Breast Cancer Association Consortium compared 42,680 women with breast cancer and 42,387 population-matched controls from the BRIDGES large-scale sequencing study.
They looked specifically at features relevant to prognosis and distinct therapeutic options, including tumor subtype, morphology, size, stage, and lymph node involvement, and found substantial differences in tumor subtype distribution by gene.
“Pathogenic [protein-truncating variants and pathogenic missense variants] in these ... they wrote, noting that carriers of rare genetic variants in the nine genes comprised more than 27% of women diagnosed at age 40 or younger with triple-negative disease (driven mainly by BRCA1) and about 16% of those diagnosed with hormone receptor (HR)–positive, HER2-negative high-grade disease.
All together, the nine genes were associated with 14.4% of tumors in women aged 40 years and younger, but less than 4% in women over age 60 years, and among younger women, the prevalence of variants combined was higher in those with triple-negative and HR-positive, HER2-negative disease versus other subtypes, they said.
The findings were published online on Jan. 27, 2022, in JAMA Oncology.
Study subjects were women aged 18-79 years who were sampled, independently of family history, from 38 international population- or hospital-based studies conducted between 1991 and 2016.
The genes assessed included ATM, BARD1, BRCA1, BRCA2, CHEK2, PALB2, RAD51C, RAD51D, and TP53.
Substantial heterogeneity was observed in the distribution of intrinsic subtypes by gene. For example, RAD51C, RAD51D, and BARD1 variants were associated mainly with triple-negative disease (odds ratios, 6.19, 6.19, and 10.05 respectively), and CHEK2 variants were associated with all subtypes (with ORs ranging from 2.21-3.17) except for triple-negative disease, the authors found.
“For ATM variants, the association was strongest for [HR-positive, HER2-negative]high-grade subtype (OR, 4.99). BRCA1 was associated with increased risk of all subtypes, but the ORs varied widely, being highest for triple-negative disease (OR, 55.32),” they wrote.
BRCA2 and PALB2 variants were also associated with triple-negative disease, TP53 variants were most strongly associated with HR-positive, HER2-negative and HR-negative, HER2-positive subtypes, and tumors occurring in pathogenic variant carriers were of higher grade, they added, noting that for most genes and subtypes, a decline in ORs was observed with increasing age.
All genes except CHEK2 were more strongly associated with high-grade disease.
These and other findings from the study can “inform guidelines for eligibility for gene panel sequencing and breast cancer surveillance in the general population,” the authors explained, adding that tumor characteristics can also be used to determine whether variants of uncertain significance are likely to be pathogenic.
The data should therefore “improve the precision of variant classification algorithms and extend them to a larger set of genes,” they noted.
“This case-control study suggests that rare variants in BC susceptibility genes display marked heterogeneity with respect to tumor phenotype, but also similarities between genes that are consistent with known biological functions. This present study provides detailed quantification of subtype-specific breast cancer risks; these can potentially improve risk prediction models and breast cancer prevention strategies,” they concluded.
More specifically, women found to be carrying variants in these genes may be offered enhanced screening, including by MRI, risk-reducing surgery, chemoprevention, and genetic counseling, corresponding author Nasim Mavaddat, MBBS, PhD, explained in an interview.
“Understanding tumor pathology associated with the genes can inform breast cancer risk prediction models, and management and treatment of women harboring pathogenic variants,” she noted.
The findings “enhance our understanding of breast cancer biology and aid efforts to classify whether genetic variants of uncertain significance are also likely to be pathogenic,” added Dr. Mavaddat, a senior research associate at the University of Cambridge (England).
She also said the investigators are taking steps to include the results in “CanRisk,” a cancer risk prediction model used by genetic counselors and other clinicians, and are “exploring whether variants in these genes are associated with contralateral breast cancer risk and survival after a breast cancer.”
As most participants were European, analyses should be extended to women of other racial and ethnic groups, she added.
The BRIDGES panel sequencing was supported by the European Union Horizon 2020 research and innovation program BRIDGES and the Wellcome Trust. The Breast Cancer Association Consortium is also funded by the European Union Horizon 2020 research and innovation program, the PERSPECTIVE I&I project, which is funded by the Government of Canada, and the Confluence project, which is funded with intramural funds from the National Cancer Institute. Dr. Mavaddat reported grants from the University of Cambridge, European Union Horizon 2020, Wellcome Trust, Genome Canada, Canadian Institutes of Health Research, and National Cancer Institute during the conduct of the study.
Breast cancer risk genes are generally associated with triple-negative and high-grade disease, but differ substantially in their associated pathology, a large case-control analysis shows.
The findings have potential implications for genetic testing, risk prediction, variant classification, and screening, the authors noted.
To assess links between pathogenic germline variants in nine major breast cancer (BC) susceptibility genes and pathological features of nonmetastasized breast tumors, investigators from the Breast Cancer Association Consortium compared 42,680 women with breast cancer and 42,387 population-matched controls from the BRIDGES large-scale sequencing study.
They looked specifically at features relevant to prognosis and distinct therapeutic options, including tumor subtype, morphology, size, stage, and lymph node involvement, and found substantial differences in tumor subtype distribution by gene.
“Pathogenic [protein-truncating variants and pathogenic missense variants] in these ... they wrote, noting that carriers of rare genetic variants in the nine genes comprised more than 27% of women diagnosed at age 40 or younger with triple-negative disease (driven mainly by BRCA1) and about 16% of those diagnosed with hormone receptor (HR)–positive, HER2-negative high-grade disease.
All together, the nine genes were associated with 14.4% of tumors in women aged 40 years and younger, but less than 4% in women over age 60 years, and among younger women, the prevalence of variants combined was higher in those with triple-negative and HR-positive, HER2-negative disease versus other subtypes, they said.
The findings were published online on Jan. 27, 2022, in JAMA Oncology.
Study subjects were women aged 18-79 years who were sampled, independently of family history, from 38 international population- or hospital-based studies conducted between 1991 and 2016.
The genes assessed included ATM, BARD1, BRCA1, BRCA2, CHEK2, PALB2, RAD51C, RAD51D, and TP53.
Substantial heterogeneity was observed in the distribution of intrinsic subtypes by gene. For example, RAD51C, RAD51D, and BARD1 variants were associated mainly with triple-negative disease (odds ratios, 6.19, 6.19, and 10.05 respectively), and CHEK2 variants were associated with all subtypes (with ORs ranging from 2.21-3.17) except for triple-negative disease, the authors found.
“For ATM variants, the association was strongest for [HR-positive, HER2-negative]high-grade subtype (OR, 4.99). BRCA1 was associated with increased risk of all subtypes, but the ORs varied widely, being highest for triple-negative disease (OR, 55.32),” they wrote.
BRCA2 and PALB2 variants were also associated with triple-negative disease, TP53 variants were most strongly associated with HR-positive, HER2-negative and HR-negative, HER2-positive subtypes, and tumors occurring in pathogenic variant carriers were of higher grade, they added, noting that for most genes and subtypes, a decline in ORs was observed with increasing age.
All genes except CHEK2 were more strongly associated with high-grade disease.
These and other findings from the study can “inform guidelines for eligibility for gene panel sequencing and breast cancer surveillance in the general population,” the authors explained, adding that tumor characteristics can also be used to determine whether variants of uncertain significance are likely to be pathogenic.
The data should therefore “improve the precision of variant classification algorithms and extend them to a larger set of genes,” they noted.
“This case-control study suggests that rare variants in BC susceptibility genes display marked heterogeneity with respect to tumor phenotype, but also similarities between genes that are consistent with known biological functions. This present study provides detailed quantification of subtype-specific breast cancer risks; these can potentially improve risk prediction models and breast cancer prevention strategies,” they concluded.
More specifically, women found to be carrying variants in these genes may be offered enhanced screening, including by MRI, risk-reducing surgery, chemoprevention, and genetic counseling, corresponding author Nasim Mavaddat, MBBS, PhD, explained in an interview.
“Understanding tumor pathology associated with the genes can inform breast cancer risk prediction models, and management and treatment of women harboring pathogenic variants,” she noted.
The findings “enhance our understanding of breast cancer biology and aid efforts to classify whether genetic variants of uncertain significance are also likely to be pathogenic,” added Dr. Mavaddat, a senior research associate at the University of Cambridge (England).
She also said the investigators are taking steps to include the results in “CanRisk,” a cancer risk prediction model used by genetic counselors and other clinicians, and are “exploring whether variants in these genes are associated with contralateral breast cancer risk and survival after a breast cancer.”
As most participants were European, analyses should be extended to women of other racial and ethnic groups, she added.
The BRIDGES panel sequencing was supported by the European Union Horizon 2020 research and innovation program BRIDGES and the Wellcome Trust. The Breast Cancer Association Consortium is also funded by the European Union Horizon 2020 research and innovation program, the PERSPECTIVE I&I project, which is funded by the Government of Canada, and the Confluence project, which is funded with intramural funds from the National Cancer Institute. Dr. Mavaddat reported grants from the University of Cambridge, European Union Horizon 2020, Wellcome Trust, Genome Canada, Canadian Institutes of Health Research, and National Cancer Institute during the conduct of the study.
Breast cancer risk genes are generally associated with triple-negative and high-grade disease, but differ substantially in their associated pathology, a large case-control analysis shows.
The findings have potential implications for genetic testing, risk prediction, variant classification, and screening, the authors noted.
To assess links between pathogenic germline variants in nine major breast cancer (BC) susceptibility genes and pathological features of nonmetastasized breast tumors, investigators from the Breast Cancer Association Consortium compared 42,680 women with breast cancer and 42,387 population-matched controls from the BRIDGES large-scale sequencing study.
They looked specifically at features relevant to prognosis and distinct therapeutic options, including tumor subtype, morphology, size, stage, and lymph node involvement, and found substantial differences in tumor subtype distribution by gene.
“Pathogenic [protein-truncating variants and pathogenic missense variants] in these ... they wrote, noting that carriers of rare genetic variants in the nine genes comprised more than 27% of women diagnosed at age 40 or younger with triple-negative disease (driven mainly by BRCA1) and about 16% of those diagnosed with hormone receptor (HR)–positive, HER2-negative high-grade disease.
All together, the nine genes were associated with 14.4% of tumors in women aged 40 years and younger, but less than 4% in women over age 60 years, and among younger women, the prevalence of variants combined was higher in those with triple-negative and HR-positive, HER2-negative disease versus other subtypes, they said.
The findings were published online on Jan. 27, 2022, in JAMA Oncology.
Study subjects were women aged 18-79 years who were sampled, independently of family history, from 38 international population- or hospital-based studies conducted between 1991 and 2016.
The genes assessed included ATM, BARD1, BRCA1, BRCA2, CHEK2, PALB2, RAD51C, RAD51D, and TP53.
Substantial heterogeneity was observed in the distribution of intrinsic subtypes by gene. For example, RAD51C, RAD51D, and BARD1 variants were associated mainly with triple-negative disease (odds ratios, 6.19, 6.19, and 10.05 respectively), and CHEK2 variants were associated with all subtypes (with ORs ranging from 2.21-3.17) except for triple-negative disease, the authors found.
“For ATM variants, the association was strongest for [HR-positive, HER2-negative]high-grade subtype (OR, 4.99). BRCA1 was associated with increased risk of all subtypes, but the ORs varied widely, being highest for triple-negative disease (OR, 55.32),” they wrote.
BRCA2 and PALB2 variants were also associated with triple-negative disease, TP53 variants were most strongly associated with HR-positive, HER2-negative and HR-negative, HER2-positive subtypes, and tumors occurring in pathogenic variant carriers were of higher grade, they added, noting that for most genes and subtypes, a decline in ORs was observed with increasing age.
All genes except CHEK2 were more strongly associated with high-grade disease.
These and other findings from the study can “inform guidelines for eligibility for gene panel sequencing and breast cancer surveillance in the general population,” the authors explained, adding that tumor characteristics can also be used to determine whether variants of uncertain significance are likely to be pathogenic.
The data should therefore “improve the precision of variant classification algorithms and extend them to a larger set of genes,” they noted.
“This case-control study suggests that rare variants in BC susceptibility genes display marked heterogeneity with respect to tumor phenotype, but also similarities between genes that are consistent with known biological functions. This present study provides detailed quantification of subtype-specific breast cancer risks; these can potentially improve risk prediction models and breast cancer prevention strategies,” they concluded.
More specifically, women found to be carrying variants in these genes may be offered enhanced screening, including by MRI, risk-reducing surgery, chemoprevention, and genetic counseling, corresponding author Nasim Mavaddat, MBBS, PhD, explained in an interview.
“Understanding tumor pathology associated with the genes can inform breast cancer risk prediction models, and management and treatment of women harboring pathogenic variants,” she noted.
The findings “enhance our understanding of breast cancer biology and aid efforts to classify whether genetic variants of uncertain significance are also likely to be pathogenic,” added Dr. Mavaddat, a senior research associate at the University of Cambridge (England).
She also said the investigators are taking steps to include the results in “CanRisk,” a cancer risk prediction model used by genetic counselors and other clinicians, and are “exploring whether variants in these genes are associated with contralateral breast cancer risk and survival after a breast cancer.”
As most participants were European, analyses should be extended to women of other racial and ethnic groups, she added.
The BRIDGES panel sequencing was supported by the European Union Horizon 2020 research and innovation program BRIDGES and the Wellcome Trust. The Breast Cancer Association Consortium is also funded by the European Union Horizon 2020 research and innovation program, the PERSPECTIVE I&I project, which is funded by the Government of Canada, and the Confluence project, which is funded with intramural funds from the National Cancer Institute. Dr. Mavaddat reported grants from the University of Cambridge, European Union Horizon 2020, Wellcome Trust, Genome Canada, Canadian Institutes of Health Research, and National Cancer Institute during the conduct of the study.
FROM JAMA ONCOLOGY
MRI far safer than CT for guiding radiotherapy in prostate cancer
shows a study from the University of California, Los Angeles.
Among the first 100 men in the phase 3 MIRAGE trial (Magnetic Resonance Imaging–Guided Versus Computed Tomography–Guided Stereotactic Body Radiotherapy for Prostate Cancer), MRI guidance more than halved the incidence of grade 2 or higher physician-reported genitourinary toxicity within 90 days of the procedure, which fell from 47.1% with CT to 22.4% with MRI.
While 13.7% of men had gastrointestinal complications with CT guidance, there wasn’t a single case in the MRI arm. The findings were presented Feb. 17 at the American Society of Clinical Oncology Genitourinary Cancers Symposium.
The investigators thought they’d need 300 men to detect a safety difference, but the results are so strong that they’ve scaled back enrollment to 154. In the meantime, MRI-guided SBRT is now offered routinely to men with localized prostate cancer at UCLA.
“Our final results are expected later this year, but we are extremely optimistic by what we’re seeing, and hope this technology will soon begin to offer men undergoing radiotherapy for prostate cancer better outcomes,” said lead investigator Amar Upadhyaya Kishan, MD, a genitourinary oncology radiologist, in a UCLA press release.
The better outcomes are caused by the enhanced imaging capabilities of MRI, including real time tracking and automatic beam shutoff when the prostate moves too far outside of the treatment boundary, Dr. Kishan explained on Twitter.
Because of the extra precision, “we felt we could safely reduce the planning margins to only 2 mm” with MRI, down from 4 mm with CT. It translated to smaller treatment volumes and less collateral tissue damage, he said.
Across the first 100 subjects, 49 men were randomized to MRI-guided SBRT and 51 to SBRT with CT guidance. Their prostates and proximal seminal vesicles were dosed with 40 Gy of radiation in five fractions. Rectal spacing and nodal irradiation were at physician discretion.
Patients in the MRI arm also reported significantly fewer urinary symptoms, including urgency, incontinence, burning sensations, and bowel dysfunction, such as pain, diarrhea, and obstruction, among others, at 1 month with MRI guidance. The differences diminished at 3 months with adverse event management in the CT arm.
Lymph nodes were irradiated in 29% of men in the CT group versus 20% in the MRI arm, and 37% of the CT group versus 27% with MRI had rectal spacing.
Baseline gland size was a median of 39 mL in both groups. Baseline International Prostate Symptom Scores were a median of 8 points in the MRI group but 5 points in the CT arm.
The work was funded by UCLA, among others. Dr. Kishan has ownership interests in ViewRay, the company that makes the MRI-guiding technology used in the trial, and reported honoraria and research funding from the company.
shows a study from the University of California, Los Angeles.
Among the first 100 men in the phase 3 MIRAGE trial (Magnetic Resonance Imaging–Guided Versus Computed Tomography–Guided Stereotactic Body Radiotherapy for Prostate Cancer), MRI guidance more than halved the incidence of grade 2 or higher physician-reported genitourinary toxicity within 90 days of the procedure, which fell from 47.1% with CT to 22.4% with MRI.
While 13.7% of men had gastrointestinal complications with CT guidance, there wasn’t a single case in the MRI arm. The findings were presented Feb. 17 at the American Society of Clinical Oncology Genitourinary Cancers Symposium.
The investigators thought they’d need 300 men to detect a safety difference, but the results are so strong that they’ve scaled back enrollment to 154. In the meantime, MRI-guided SBRT is now offered routinely to men with localized prostate cancer at UCLA.
“Our final results are expected later this year, but we are extremely optimistic by what we’re seeing, and hope this technology will soon begin to offer men undergoing radiotherapy for prostate cancer better outcomes,” said lead investigator Amar Upadhyaya Kishan, MD, a genitourinary oncology radiologist, in a UCLA press release.
The better outcomes are caused by the enhanced imaging capabilities of MRI, including real time tracking and automatic beam shutoff when the prostate moves too far outside of the treatment boundary, Dr. Kishan explained on Twitter.
Because of the extra precision, “we felt we could safely reduce the planning margins to only 2 mm” with MRI, down from 4 mm with CT. It translated to smaller treatment volumes and less collateral tissue damage, he said.
Across the first 100 subjects, 49 men were randomized to MRI-guided SBRT and 51 to SBRT with CT guidance. Their prostates and proximal seminal vesicles were dosed with 40 Gy of radiation in five fractions. Rectal spacing and nodal irradiation were at physician discretion.
Patients in the MRI arm also reported significantly fewer urinary symptoms, including urgency, incontinence, burning sensations, and bowel dysfunction, such as pain, diarrhea, and obstruction, among others, at 1 month with MRI guidance. The differences diminished at 3 months with adverse event management in the CT arm.
Lymph nodes were irradiated in 29% of men in the CT group versus 20% in the MRI arm, and 37% of the CT group versus 27% with MRI had rectal spacing.
Baseline gland size was a median of 39 mL in both groups. Baseline International Prostate Symptom Scores were a median of 8 points in the MRI group but 5 points in the CT arm.
The work was funded by UCLA, among others. Dr. Kishan has ownership interests in ViewRay, the company that makes the MRI-guiding technology used in the trial, and reported honoraria and research funding from the company.
shows a study from the University of California, Los Angeles.
Among the first 100 men in the phase 3 MIRAGE trial (Magnetic Resonance Imaging–Guided Versus Computed Tomography–Guided Stereotactic Body Radiotherapy for Prostate Cancer), MRI guidance more than halved the incidence of grade 2 or higher physician-reported genitourinary toxicity within 90 days of the procedure, which fell from 47.1% with CT to 22.4% with MRI.
While 13.7% of men had gastrointestinal complications with CT guidance, there wasn’t a single case in the MRI arm. The findings were presented Feb. 17 at the American Society of Clinical Oncology Genitourinary Cancers Symposium.
The investigators thought they’d need 300 men to detect a safety difference, but the results are so strong that they’ve scaled back enrollment to 154. In the meantime, MRI-guided SBRT is now offered routinely to men with localized prostate cancer at UCLA.
“Our final results are expected later this year, but we are extremely optimistic by what we’re seeing, and hope this technology will soon begin to offer men undergoing radiotherapy for prostate cancer better outcomes,” said lead investigator Amar Upadhyaya Kishan, MD, a genitourinary oncology radiologist, in a UCLA press release.
The better outcomes are caused by the enhanced imaging capabilities of MRI, including real time tracking and automatic beam shutoff when the prostate moves too far outside of the treatment boundary, Dr. Kishan explained on Twitter.
Because of the extra precision, “we felt we could safely reduce the planning margins to only 2 mm” with MRI, down from 4 mm with CT. It translated to smaller treatment volumes and less collateral tissue damage, he said.
Across the first 100 subjects, 49 men were randomized to MRI-guided SBRT and 51 to SBRT with CT guidance. Their prostates and proximal seminal vesicles were dosed with 40 Gy of radiation in five fractions. Rectal spacing and nodal irradiation were at physician discretion.
Patients in the MRI arm also reported significantly fewer urinary symptoms, including urgency, incontinence, burning sensations, and bowel dysfunction, such as pain, diarrhea, and obstruction, among others, at 1 month with MRI guidance. The differences diminished at 3 months with adverse event management in the CT arm.
Lymph nodes were irradiated in 29% of men in the CT group versus 20% in the MRI arm, and 37% of the CT group versus 27% with MRI had rectal spacing.
Baseline gland size was a median of 39 mL in both groups. Baseline International Prostate Symptom Scores were a median of 8 points in the MRI group but 5 points in the CT arm.
The work was funded by UCLA, among others. Dr. Kishan has ownership interests in ViewRay, the company that makes the MRI-guiding technology used in the trial, and reported honoraria and research funding from the company.
FROM ASCO GU 2022
Poor trial representation tied to worse breast cancer survival
Women with early-stage breast cancer who are poorly represented in clinical trials have worse survival than their well-represented peers, according to a real-world analysis.
The study shows that more than half of women with early breast cancer are not well represented in clinical trials because of age, comorbidities, or race, yet they receive therapies based on the results of these trials.
“The most interesting finding is that patients with comorbidities resulting in lab abnormalities that would typically exclude them from receiving medication on a trial are still frequently receiving these medications and have an almost threefold higher mortality,” Gabrielle Rocque, MD, with the division of hematology and oncology, University of Alabama at Birmingham, told this news organization.
“We need to do a deeper dive to better understand what is driving this mortality difference and test specific medications in patients with these conditions to understand the optimal treatment for this population,” Dr. Rocque added.
The study was published Feb. 1 in JCO Oncology Practice.
Many patient groups are not well represented in clinical trials, including patients of color, older patients, and those with comorbidities, and it remains unclear how treatment outcomes may differ among these patients, compared with those who are well represented in trials.
To investigate, Dr. Rocque and colleagues looked at 11,770 women diagnosed with stage I-III breast cancer between 2005 and 2015 in the American Society of Clinical Oncology CancerLinQ database.
White women between 45 and 69 years of age with no comorbid conditions were considered well represented and made up 48% of the cohort.
Non-White women and/or those younger than 45 years or older than 70 were considered under represented and made up 45% of the cohort. The unrepresented group (7%) included women with comorbidities – such as liver disease, renal insufficiency, thrombocytopenia, anemia, or uncontrolled diabetes – or concurrent cancer.
The majority of the women received a high-intensity chemotherapy regimen, including 58% of unrepresented, 66% of underrepresented, and 63% of well-represented patients.
Compared with well-represented women, unrepresented women had a higher risk of death at 5 years (adjusted hazard ratio, 2.71; 95% confidence interval, 2.08-3.52).
Overall, the team found no significant increase in the risk of death at 5 years in underrepresented vs. well-represented women (aHR, 1.19; 95% CI, 0.98-1.45). However, that risk varied with age. Among underrepresented women, those aged 70 and older had more than a twofold higher risk of 5-year mortality (aHR, 2.21), while those younger than 45 had a lower risk of 5-year mortality (aHR, 0.63), compared with those aged 45-69 years.
For three cancer subtypes, unrepresented patients had a greater than twofold higher risk of 5-year mortality, compared with well-represented patients (aHR, 2.50 for HER2-positive disease; aHR, 2.54 for HR-positive/HER2-negative disease; and aHR, 2.75 for triple-negative disease).
Underrepresented patients with HR-positive/HER2-negative disease had a 38% increased risk of 5-year mortality, compared with their well-represented peers (aHR, 1.38). However, there were no significant differences in 5-year mortality for underrepresented vs. well-represented patients with HER2-positive or triple-negative subtypes.
Risky business?
This analysis shows that unrepresented populations receive common treatment regimens at a similar rate as well-represented patients, the researchers note.
“By excluding patients with differing clinical conditions from trials but including them in the population to which drugs can be disseminated, one runs the risk of inadvertently causing injury,” the authors caution.
“To inform the practice of evidence-based medicine in an equitable manner, our findings support a need to both expand clinical trial inclusion criteria and report on clinical trial outcomes by clinical and demographic characteristics,” Dr. Rocque and colleagues conclude.
Charles Shapiro, MD, professor of medicine, hematology, and medical oncology, Icahn School of Medicine at Mount Sinai, New York, is not surprised by the findings of this study.
“We know that clinical trials are too restrictive and include only a selected population largely without comorbidities, but in the real world, people have comorbidities,” Dr. Shapiro, who was not involved in the research, told this news organization.
The study “starkly illustrates” the poorer survival of populations not represented in clinical trials.
“It could be that we need to change clinical trials, maybe ask fewer questions or maybe ask more important questions and loosen the eligibility up, because in the real world, there are people with comorbidities and people who are over 70,” Dr. Shapiro stated.
Are strides being made to change that? “Not really,” Dr. Shapiro said in an interview.
The study was supported by grants from the Robert Wood Johnson Foundation and the American Cancer Society. Dr. Rocque has served as a consultant or advisor for Pfizer; has received research funding from Carevive Systems, Genentech, and Pfizer; and has received travel, accommodations, and expenses from Carevive. Dr. Shapiro has financial relationships with UptoDate, 2nd MD, and Anthenum.
A version of this article first appeared on Medscape.com.
Women with early-stage breast cancer who are poorly represented in clinical trials have worse survival than their well-represented peers, according to a real-world analysis.
The study shows that more than half of women with early breast cancer are not well represented in clinical trials because of age, comorbidities, or race, yet they receive therapies based on the results of these trials.
“The most interesting finding is that patients with comorbidities resulting in lab abnormalities that would typically exclude them from receiving medication on a trial are still frequently receiving these medications and have an almost threefold higher mortality,” Gabrielle Rocque, MD, with the division of hematology and oncology, University of Alabama at Birmingham, told this news organization.
“We need to do a deeper dive to better understand what is driving this mortality difference and test specific medications in patients with these conditions to understand the optimal treatment for this population,” Dr. Rocque added.
The study was published Feb. 1 in JCO Oncology Practice.
Many patient groups are not well represented in clinical trials, including patients of color, older patients, and those with comorbidities, and it remains unclear how treatment outcomes may differ among these patients, compared with those who are well represented in trials.
To investigate, Dr. Rocque and colleagues looked at 11,770 women diagnosed with stage I-III breast cancer between 2005 and 2015 in the American Society of Clinical Oncology CancerLinQ database.
White women between 45 and 69 years of age with no comorbid conditions were considered well represented and made up 48% of the cohort.
Non-White women and/or those younger than 45 years or older than 70 were considered under represented and made up 45% of the cohort. The unrepresented group (7%) included women with comorbidities – such as liver disease, renal insufficiency, thrombocytopenia, anemia, or uncontrolled diabetes – or concurrent cancer.
The majority of the women received a high-intensity chemotherapy regimen, including 58% of unrepresented, 66% of underrepresented, and 63% of well-represented patients.
Compared with well-represented women, unrepresented women had a higher risk of death at 5 years (adjusted hazard ratio, 2.71; 95% confidence interval, 2.08-3.52).
Overall, the team found no significant increase in the risk of death at 5 years in underrepresented vs. well-represented women (aHR, 1.19; 95% CI, 0.98-1.45). However, that risk varied with age. Among underrepresented women, those aged 70 and older had more than a twofold higher risk of 5-year mortality (aHR, 2.21), while those younger than 45 had a lower risk of 5-year mortality (aHR, 0.63), compared with those aged 45-69 years.
For three cancer subtypes, unrepresented patients had a greater than twofold higher risk of 5-year mortality, compared with well-represented patients (aHR, 2.50 for HER2-positive disease; aHR, 2.54 for HR-positive/HER2-negative disease; and aHR, 2.75 for triple-negative disease).
Underrepresented patients with HR-positive/HER2-negative disease had a 38% increased risk of 5-year mortality, compared with their well-represented peers (aHR, 1.38). However, there were no significant differences in 5-year mortality for underrepresented vs. well-represented patients with HER2-positive or triple-negative subtypes.
Risky business?
This analysis shows that unrepresented populations receive common treatment regimens at a similar rate as well-represented patients, the researchers note.
“By excluding patients with differing clinical conditions from trials but including them in the population to which drugs can be disseminated, one runs the risk of inadvertently causing injury,” the authors caution.
“To inform the practice of evidence-based medicine in an equitable manner, our findings support a need to both expand clinical trial inclusion criteria and report on clinical trial outcomes by clinical and demographic characteristics,” Dr. Rocque and colleagues conclude.
Charles Shapiro, MD, professor of medicine, hematology, and medical oncology, Icahn School of Medicine at Mount Sinai, New York, is not surprised by the findings of this study.
“We know that clinical trials are too restrictive and include only a selected population largely without comorbidities, but in the real world, people have comorbidities,” Dr. Shapiro, who was not involved in the research, told this news organization.
The study “starkly illustrates” the poorer survival of populations not represented in clinical trials.
“It could be that we need to change clinical trials, maybe ask fewer questions or maybe ask more important questions and loosen the eligibility up, because in the real world, there are people with comorbidities and people who are over 70,” Dr. Shapiro stated.
Are strides being made to change that? “Not really,” Dr. Shapiro said in an interview.
The study was supported by grants from the Robert Wood Johnson Foundation and the American Cancer Society. Dr. Rocque has served as a consultant or advisor for Pfizer; has received research funding from Carevive Systems, Genentech, and Pfizer; and has received travel, accommodations, and expenses from Carevive. Dr. Shapiro has financial relationships with UptoDate, 2nd MD, and Anthenum.
A version of this article first appeared on Medscape.com.
Women with early-stage breast cancer who are poorly represented in clinical trials have worse survival than their well-represented peers, according to a real-world analysis.
The study shows that more than half of women with early breast cancer are not well represented in clinical trials because of age, comorbidities, or race, yet they receive therapies based on the results of these trials.
“The most interesting finding is that patients with comorbidities resulting in lab abnormalities that would typically exclude them from receiving medication on a trial are still frequently receiving these medications and have an almost threefold higher mortality,” Gabrielle Rocque, MD, with the division of hematology and oncology, University of Alabama at Birmingham, told this news organization.
“We need to do a deeper dive to better understand what is driving this mortality difference and test specific medications in patients with these conditions to understand the optimal treatment for this population,” Dr. Rocque added.
The study was published Feb. 1 in JCO Oncology Practice.
Many patient groups are not well represented in clinical trials, including patients of color, older patients, and those with comorbidities, and it remains unclear how treatment outcomes may differ among these patients, compared with those who are well represented in trials.
To investigate, Dr. Rocque and colleagues looked at 11,770 women diagnosed with stage I-III breast cancer between 2005 and 2015 in the American Society of Clinical Oncology CancerLinQ database.
White women between 45 and 69 years of age with no comorbid conditions were considered well represented and made up 48% of the cohort.
Non-White women and/or those younger than 45 years or older than 70 were considered under represented and made up 45% of the cohort. The unrepresented group (7%) included women with comorbidities – such as liver disease, renal insufficiency, thrombocytopenia, anemia, or uncontrolled diabetes – or concurrent cancer.
The majority of the women received a high-intensity chemotherapy regimen, including 58% of unrepresented, 66% of underrepresented, and 63% of well-represented patients.
Compared with well-represented women, unrepresented women had a higher risk of death at 5 years (adjusted hazard ratio, 2.71; 95% confidence interval, 2.08-3.52).
Overall, the team found no significant increase in the risk of death at 5 years in underrepresented vs. well-represented women (aHR, 1.19; 95% CI, 0.98-1.45). However, that risk varied with age. Among underrepresented women, those aged 70 and older had more than a twofold higher risk of 5-year mortality (aHR, 2.21), while those younger than 45 had a lower risk of 5-year mortality (aHR, 0.63), compared with those aged 45-69 years.
For three cancer subtypes, unrepresented patients had a greater than twofold higher risk of 5-year mortality, compared with well-represented patients (aHR, 2.50 for HER2-positive disease; aHR, 2.54 for HR-positive/HER2-negative disease; and aHR, 2.75 for triple-negative disease).
Underrepresented patients with HR-positive/HER2-negative disease had a 38% increased risk of 5-year mortality, compared with their well-represented peers (aHR, 1.38). However, there were no significant differences in 5-year mortality for underrepresented vs. well-represented patients with HER2-positive or triple-negative subtypes.
Risky business?
This analysis shows that unrepresented populations receive common treatment regimens at a similar rate as well-represented patients, the researchers note.
“By excluding patients with differing clinical conditions from trials but including them in the population to which drugs can be disseminated, one runs the risk of inadvertently causing injury,” the authors caution.
“To inform the practice of evidence-based medicine in an equitable manner, our findings support a need to both expand clinical trial inclusion criteria and report on clinical trial outcomes by clinical and demographic characteristics,” Dr. Rocque and colleagues conclude.
Charles Shapiro, MD, professor of medicine, hematology, and medical oncology, Icahn School of Medicine at Mount Sinai, New York, is not surprised by the findings of this study.
“We know that clinical trials are too restrictive and include only a selected population largely without comorbidities, but in the real world, people have comorbidities,” Dr. Shapiro, who was not involved in the research, told this news organization.
The study “starkly illustrates” the poorer survival of populations not represented in clinical trials.
“It could be that we need to change clinical trials, maybe ask fewer questions or maybe ask more important questions and loosen the eligibility up, because in the real world, there are people with comorbidities and people who are over 70,” Dr. Shapiro stated.
Are strides being made to change that? “Not really,” Dr. Shapiro said in an interview.
The study was supported by grants from the Robert Wood Johnson Foundation and the American Cancer Society. Dr. Rocque has served as a consultant or advisor for Pfizer; has received research funding from Carevive Systems, Genentech, and Pfizer; and has received travel, accommodations, and expenses from Carevive. Dr. Shapiro has financial relationships with UptoDate, 2nd MD, and Anthenum.
A version of this article first appeared on Medscape.com.
FROM JCO ONCOLOGY PRACTICE
Full results of anal cancer study point to barriers to care
Reports based on a press release in October 2021 suggested it, but now the full data tell the story:
“We now show, for the first time, that treatment of anal HSIL is effective in reducing the incidence of anal cancer,” said Joel Palefsky, MD, lead investigator of the Anal Cancer/HSIL Outcomes Research (ANCHOR) study and founder/director of the Anal Neoplasia Clinic at the University of California, San Francisco. “These data should be included in an overall assessment for inclusion of screening for and treating HSIL as standard of care in people living with HIV.”
Dr. Palefsky presented the full results in a special session at the Conference on Retroviruses and Opportunistic Infections, which drew excitement, gratitude, and relief from both researchers and clinicians, who flocked to the session.
But it’s not just people with HIV who will benefit from this research. Dr. Palefsky suggested that the findings should also be considered as guides for other people at high-risk for anal cancer, such as people who are immunocompromised for other reasons, including those with lupus, ulcerative colitis, Crohn’s disease, or cisgender women who have had vulvar or cervical cancer or precancer.
“If we can show efficacy in the most challenging group of all, which are people living with HIV, we think the results can be as good, if not even better, in the other groups at high risk of anal cancer,” Dr. Palefsky said.
But to serve anyone – whether living with HIV or not – infrastructure, algorithms, and workforce training are going be needed to meet the currently unserved people through use of high-resolution anoscopy (HRA) and other screening technology, he said.
Dr. Palefsy and colleagues screened 10,723 people living with HIV being served at 15 clinics nationwide. More than half, 52.2%, had anal HSIL – 53.3% of the cisgender men living with HIV in the trial, 45.8% of the cis women living with HIV, and a full 62.5% of transgender participants.
Those 4,446 participants were split evenly between the treatment arm and the control arm. Those in the treatment arm received treatment for HSIL on their first study visit via one of five options: hyfrecation, office-based electrocautery ablation, infrared coagulation, topical 5-fluorouracil cream, or topical imiquimod. Then, every 6 months after that, they came in for HRA, blood tests, anal Pap smears, and biopsies to check for any lingering or new HSIL. If clinicians found such cells, they received treatment again. If biopsies still showed HSIL and clinician and participant were worried about cancer, they could come in as frequently as every 3 months and receive treatment each time.
The active-monitoring control group still received an anal Pap smear, blood tests, biopsy, and HRA every 6 months – a level of care that is currently not mandated anywhere for people living with HIV, Dr. Palefsky said in an interview. They were also able to come in for more frequent monitoring (every 3 months) if clinicians were worried about cancer.
“Those in both arms would have been getting more attention than if they had not participated in the study,” he said.
In addition, during screening, researchers found that cancer was already present in 17 other people, who skipped the study to go right to treatment.
Participants reflected the demographics of the HIV epidemic in the United States. They were older (median age, 51 years), mostly gay (78%), and cisgender male (80%). Close to half, 42%, were Black, and 16% were Latinx. In addition, cisgender women made up 16% of the participants and transgender people, and nonbinary individuals accounted for more than 3% of the participants. In addition, one in three smoked.
The vast majority of participants had well-controlled HIV and healthy immune systems, though half in each arm had a history of AIDS, defined as lowest-ever CD4 immune cell counts below 200. Today, more than 80% of participants had undetectable viral loads, defined as a viral load less than 50 copies/mL, and another 7% had HIV viral loads below 200. In total, 9.3% in the treatment arm and 10.9% in the control arm had HIV viral loads higher than that. At time of enrollment, CD4 counts were above 600 in each group, indicating healthy immune systems.
Although all participants were there because they had anal HSIL, more than 1 in 10 – 13% – had abnormal cells so extensive that they covered more than half of the anal canal or the perianal region.
Once everyone was enrolled, researchers began monitoring and treatment, looking specifically for 31 cases of cancer – a number the team had determined that they’d need in order to draw any conclusions. Dr. Palefsky didn’t have to wait long. They were still trying to enroll the last 1,000 participants to have the power necessary to reach that number when the cancer diagnoses came in.
Dr. Palefsky told this news organization that the reason for that is unclear. It could be that some of those cases would have resolved on their own, and so the swiftness with which they reached the required number of cancer cases belies their seriousness. It could also be that the particular people who enrolled in this trial were engaging in behaviors that put them at even higher risk for anal cancer than the population of people living with HIV in the United States.
Or it could be that symptom-based screening is missing a lot of cancers that currently go untreated.
“So perhaps we will be seeing an increase in anal cancer reported in the future compared to the currently reported rates,” he said. “We don’t really know.”
Regardless of the reason for the speed to cases of cancer, the results were definitive: Nine participants were diagnosed with invasive anal cancer in the treatment arm, while 21 were diagnosed with invasive anal cancer in the control arm. That’s a 57% reduction in cancer occurrence between the arms. Or, to put it another way, the rate of anal cancer among people in the treatment arm was 173 per 100,000 people-years. In the active monitoring arm, it was 402 per 100,000 person-years. For context, the overall rate of anal cancer among people living with HIV is 50 per 100,000 person-years. The rate in the general U.S. population is 8 per 100,000 people-years.
The experimental treatment was such a definitive success that the investigators stopped the trial and shifted all participants in the control arm to treatment.
‘We have to build’
Before Dr. Palefsky was even done presenting the data, clinicians, people living with HIV, and experts at the session were already brainstorming as to how to get these results into practice.
“These data are what we have long needed to fuel some action on this important problem, including medical cost reimbursement through insurance and increasing the number of persons trained and capable in anal cancer screening,” John Brooks, MD, head of the epidemiology research team at the Centers for Disease Control and Prevention’s division of HIV/AIDS prevention, wrote in the virtual chat.
Jeff Taylor, a member of the ANCHOR advisory board and a person living with HIV who participated in one of the first azidothymidine trials in the late 1980s, responded quickly.
“What kind of advocacy from researchers, HIV clinicians and [people living with HIV] is needed to get this on treatment guidelines, HRA providers trained and certified, and payors to cover this so [people living with HIV] actually have access to lifesaving screening and [treatment]?” Mr. Taylor asked.
It’s a serious challenge. David Malebranche, MD, an Atlanta-based internal medicine physician who specializes in sexual health and HIV, commented in an interview. When he saw the initial press release last year on the ANCHOR findings, his first reaction was: “Thank god. We finally have some data to show what we’ve been trying to get people to do” all along.
But then he wondered, who is going to perform these tests? It’s a fair question. Currently, the wait for an HRA is 6-12 months in many parts of the country. And Dr. Malebranche can’t imagine this being added to his already full plate as a primary care provider.
“If you tell a primary care provider now that they have to do a rectal Pap smear, that’s going to be a problem while you’re also asking them to screen each patient for depression, anxiety, domestic abuse, intimate partner violence, all the healthcare maintenance and all the other screening tests – and then you deal with not only the urgent complaint but then all the complex medical issues on top of that – in a 15-minute or 10-minute visit,” he said.
Now that we have these data, he said, “we have to build.”
Dr. Palefsky agreed. Very few centers have enough people skilled at performing HRAs to meet the current demand, and it’s not realistic to expect clinicians to perform an HRA every 6 months like the study team did. There need to be algorithms put in place to help practitioners figure out who among their patients living with HIV could benefit from this increased screening, as well as biomarkers to identify HSIL progression and regression without the use of HRA, Dr. Palefsky told attendees. And more clinicians need to be recruited and trained to read HRAs, which can be difficult for the untrained eye to decipher.
Dr. Malebranche added another, more fundamental thing that needs to be built. Dr. Malebranche has worked in HIV clinics where the majority of his patients qualify for insurance under the Ryan White Program and get their medications through the AIDS Drug Assistance Program. While Ryan White programs can provide critical wraparound care, Dr. Malebranche has had to refer out for something like an HRA or cancer treatment. But the people who only access care through such programs may not have coverage with the clinics that perform HRA or that treat cancer. And that’s if they can even find someone to see them.
“If I live in a state like Georgia, which doesn’t have Medicaid expansion and we have people who are uninsured, where do you send them?” Dr. Malebranche asked. “This isn’t theoretical. I ran into this problem when I was working at the AIDS Healthcare Foundation last year. ... This is a call for infrastructure.”
The study was funded by the National Cancer Institute. Dr. Brooks reported no relevant financial relationships. Dr. Palefsky has received consultant fees from Merck, Vir Biotechnology, Virion Therapeutics, and Antiva Bioscience, as well as speaker fees from Merck. Dr. Malebranche has received consulting and advising fees from ViiV Healthcare.
A version of this article first appeared on Medscape.com.
Reports based on a press release in October 2021 suggested it, but now the full data tell the story:
“We now show, for the first time, that treatment of anal HSIL is effective in reducing the incidence of anal cancer,” said Joel Palefsky, MD, lead investigator of the Anal Cancer/HSIL Outcomes Research (ANCHOR) study and founder/director of the Anal Neoplasia Clinic at the University of California, San Francisco. “These data should be included in an overall assessment for inclusion of screening for and treating HSIL as standard of care in people living with HIV.”
Dr. Palefsky presented the full results in a special session at the Conference on Retroviruses and Opportunistic Infections, which drew excitement, gratitude, and relief from both researchers and clinicians, who flocked to the session.
But it’s not just people with HIV who will benefit from this research. Dr. Palefsky suggested that the findings should also be considered as guides for other people at high-risk for anal cancer, such as people who are immunocompromised for other reasons, including those with lupus, ulcerative colitis, Crohn’s disease, or cisgender women who have had vulvar or cervical cancer or precancer.
“If we can show efficacy in the most challenging group of all, which are people living with HIV, we think the results can be as good, if not even better, in the other groups at high risk of anal cancer,” Dr. Palefsky said.
But to serve anyone – whether living with HIV or not – infrastructure, algorithms, and workforce training are going be needed to meet the currently unserved people through use of high-resolution anoscopy (HRA) and other screening technology, he said.
Dr. Palefsy and colleagues screened 10,723 people living with HIV being served at 15 clinics nationwide. More than half, 52.2%, had anal HSIL – 53.3% of the cisgender men living with HIV in the trial, 45.8% of the cis women living with HIV, and a full 62.5% of transgender participants.
Those 4,446 participants were split evenly between the treatment arm and the control arm. Those in the treatment arm received treatment for HSIL on their first study visit via one of five options: hyfrecation, office-based electrocautery ablation, infrared coagulation, topical 5-fluorouracil cream, or topical imiquimod. Then, every 6 months after that, they came in for HRA, blood tests, anal Pap smears, and biopsies to check for any lingering or new HSIL. If clinicians found such cells, they received treatment again. If biopsies still showed HSIL and clinician and participant were worried about cancer, they could come in as frequently as every 3 months and receive treatment each time.
The active-monitoring control group still received an anal Pap smear, blood tests, biopsy, and HRA every 6 months – a level of care that is currently not mandated anywhere for people living with HIV, Dr. Palefsky said in an interview. They were also able to come in for more frequent monitoring (every 3 months) if clinicians were worried about cancer.
“Those in both arms would have been getting more attention than if they had not participated in the study,” he said.
In addition, during screening, researchers found that cancer was already present in 17 other people, who skipped the study to go right to treatment.
Participants reflected the demographics of the HIV epidemic in the United States. They were older (median age, 51 years), mostly gay (78%), and cisgender male (80%). Close to half, 42%, were Black, and 16% were Latinx. In addition, cisgender women made up 16% of the participants and transgender people, and nonbinary individuals accounted for more than 3% of the participants. In addition, one in three smoked.
The vast majority of participants had well-controlled HIV and healthy immune systems, though half in each arm had a history of AIDS, defined as lowest-ever CD4 immune cell counts below 200. Today, more than 80% of participants had undetectable viral loads, defined as a viral load less than 50 copies/mL, and another 7% had HIV viral loads below 200. In total, 9.3% in the treatment arm and 10.9% in the control arm had HIV viral loads higher than that. At time of enrollment, CD4 counts were above 600 in each group, indicating healthy immune systems.
Although all participants were there because they had anal HSIL, more than 1 in 10 – 13% – had abnormal cells so extensive that they covered more than half of the anal canal or the perianal region.
Once everyone was enrolled, researchers began monitoring and treatment, looking specifically for 31 cases of cancer – a number the team had determined that they’d need in order to draw any conclusions. Dr. Palefsky didn’t have to wait long. They were still trying to enroll the last 1,000 participants to have the power necessary to reach that number when the cancer diagnoses came in.
Dr. Palefsky told this news organization that the reason for that is unclear. It could be that some of those cases would have resolved on their own, and so the swiftness with which they reached the required number of cancer cases belies their seriousness. It could also be that the particular people who enrolled in this trial were engaging in behaviors that put them at even higher risk for anal cancer than the population of people living with HIV in the United States.
Or it could be that symptom-based screening is missing a lot of cancers that currently go untreated.
“So perhaps we will be seeing an increase in anal cancer reported in the future compared to the currently reported rates,” he said. “We don’t really know.”
Regardless of the reason for the speed to cases of cancer, the results were definitive: Nine participants were diagnosed with invasive anal cancer in the treatment arm, while 21 were diagnosed with invasive anal cancer in the control arm. That’s a 57% reduction in cancer occurrence between the arms. Or, to put it another way, the rate of anal cancer among people in the treatment arm was 173 per 100,000 people-years. In the active monitoring arm, it was 402 per 100,000 person-years. For context, the overall rate of anal cancer among people living with HIV is 50 per 100,000 person-years. The rate in the general U.S. population is 8 per 100,000 people-years.
The experimental treatment was such a definitive success that the investigators stopped the trial and shifted all participants in the control arm to treatment.
‘We have to build’
Before Dr. Palefsky was even done presenting the data, clinicians, people living with HIV, and experts at the session were already brainstorming as to how to get these results into practice.
“These data are what we have long needed to fuel some action on this important problem, including medical cost reimbursement through insurance and increasing the number of persons trained and capable in anal cancer screening,” John Brooks, MD, head of the epidemiology research team at the Centers for Disease Control and Prevention’s division of HIV/AIDS prevention, wrote in the virtual chat.
Jeff Taylor, a member of the ANCHOR advisory board and a person living with HIV who participated in one of the first azidothymidine trials in the late 1980s, responded quickly.
“What kind of advocacy from researchers, HIV clinicians and [people living with HIV] is needed to get this on treatment guidelines, HRA providers trained and certified, and payors to cover this so [people living with HIV] actually have access to lifesaving screening and [treatment]?” Mr. Taylor asked.
It’s a serious challenge. David Malebranche, MD, an Atlanta-based internal medicine physician who specializes in sexual health and HIV, commented in an interview. When he saw the initial press release last year on the ANCHOR findings, his first reaction was: “Thank god. We finally have some data to show what we’ve been trying to get people to do” all along.
But then he wondered, who is going to perform these tests? It’s a fair question. Currently, the wait for an HRA is 6-12 months in many parts of the country. And Dr. Malebranche can’t imagine this being added to his already full plate as a primary care provider.
“If you tell a primary care provider now that they have to do a rectal Pap smear, that’s going to be a problem while you’re also asking them to screen each patient for depression, anxiety, domestic abuse, intimate partner violence, all the healthcare maintenance and all the other screening tests – and then you deal with not only the urgent complaint but then all the complex medical issues on top of that – in a 15-minute or 10-minute visit,” he said.
Now that we have these data, he said, “we have to build.”
Dr. Palefsky agreed. Very few centers have enough people skilled at performing HRAs to meet the current demand, and it’s not realistic to expect clinicians to perform an HRA every 6 months like the study team did. There need to be algorithms put in place to help practitioners figure out who among their patients living with HIV could benefit from this increased screening, as well as biomarkers to identify HSIL progression and regression without the use of HRA, Dr. Palefsky told attendees. And more clinicians need to be recruited and trained to read HRAs, which can be difficult for the untrained eye to decipher.
Dr. Malebranche added another, more fundamental thing that needs to be built. Dr. Malebranche has worked in HIV clinics where the majority of his patients qualify for insurance under the Ryan White Program and get their medications through the AIDS Drug Assistance Program. While Ryan White programs can provide critical wraparound care, Dr. Malebranche has had to refer out for something like an HRA or cancer treatment. But the people who only access care through such programs may not have coverage with the clinics that perform HRA or that treat cancer. And that’s if they can even find someone to see them.
“If I live in a state like Georgia, which doesn’t have Medicaid expansion and we have people who are uninsured, where do you send them?” Dr. Malebranche asked. “This isn’t theoretical. I ran into this problem when I was working at the AIDS Healthcare Foundation last year. ... This is a call for infrastructure.”
The study was funded by the National Cancer Institute. Dr. Brooks reported no relevant financial relationships. Dr. Palefsky has received consultant fees from Merck, Vir Biotechnology, Virion Therapeutics, and Antiva Bioscience, as well as speaker fees from Merck. Dr. Malebranche has received consulting and advising fees from ViiV Healthcare.
A version of this article first appeared on Medscape.com.
Reports based on a press release in October 2021 suggested it, but now the full data tell the story:
“We now show, for the first time, that treatment of anal HSIL is effective in reducing the incidence of anal cancer,” said Joel Palefsky, MD, lead investigator of the Anal Cancer/HSIL Outcomes Research (ANCHOR) study and founder/director of the Anal Neoplasia Clinic at the University of California, San Francisco. “These data should be included in an overall assessment for inclusion of screening for and treating HSIL as standard of care in people living with HIV.”
Dr. Palefsky presented the full results in a special session at the Conference on Retroviruses and Opportunistic Infections, which drew excitement, gratitude, and relief from both researchers and clinicians, who flocked to the session.
But it’s not just people with HIV who will benefit from this research. Dr. Palefsky suggested that the findings should also be considered as guides for other people at high-risk for anal cancer, such as people who are immunocompromised for other reasons, including those with lupus, ulcerative colitis, Crohn’s disease, or cisgender women who have had vulvar or cervical cancer or precancer.
“If we can show efficacy in the most challenging group of all, which are people living with HIV, we think the results can be as good, if not even better, in the other groups at high risk of anal cancer,” Dr. Palefsky said.
But to serve anyone – whether living with HIV or not – infrastructure, algorithms, and workforce training are going be needed to meet the currently unserved people through use of high-resolution anoscopy (HRA) and other screening technology, he said.
Dr. Palefsy and colleagues screened 10,723 people living with HIV being served at 15 clinics nationwide. More than half, 52.2%, had anal HSIL – 53.3% of the cisgender men living with HIV in the trial, 45.8% of the cis women living with HIV, and a full 62.5% of transgender participants.
Those 4,446 participants were split evenly between the treatment arm and the control arm. Those in the treatment arm received treatment for HSIL on their first study visit via one of five options: hyfrecation, office-based electrocautery ablation, infrared coagulation, topical 5-fluorouracil cream, or topical imiquimod. Then, every 6 months after that, they came in for HRA, blood tests, anal Pap smears, and biopsies to check for any lingering or new HSIL. If clinicians found such cells, they received treatment again. If biopsies still showed HSIL and clinician and participant were worried about cancer, they could come in as frequently as every 3 months and receive treatment each time.
The active-monitoring control group still received an anal Pap smear, blood tests, biopsy, and HRA every 6 months – a level of care that is currently not mandated anywhere for people living with HIV, Dr. Palefsky said in an interview. They were also able to come in for more frequent monitoring (every 3 months) if clinicians were worried about cancer.
“Those in both arms would have been getting more attention than if they had not participated in the study,” he said.
In addition, during screening, researchers found that cancer was already present in 17 other people, who skipped the study to go right to treatment.
Participants reflected the demographics of the HIV epidemic in the United States. They were older (median age, 51 years), mostly gay (78%), and cisgender male (80%). Close to half, 42%, were Black, and 16% were Latinx. In addition, cisgender women made up 16% of the participants and transgender people, and nonbinary individuals accounted for more than 3% of the participants. In addition, one in three smoked.
The vast majority of participants had well-controlled HIV and healthy immune systems, though half in each arm had a history of AIDS, defined as lowest-ever CD4 immune cell counts below 200. Today, more than 80% of participants had undetectable viral loads, defined as a viral load less than 50 copies/mL, and another 7% had HIV viral loads below 200. In total, 9.3% in the treatment arm and 10.9% in the control arm had HIV viral loads higher than that. At time of enrollment, CD4 counts were above 600 in each group, indicating healthy immune systems.
Although all participants were there because they had anal HSIL, more than 1 in 10 – 13% – had abnormal cells so extensive that they covered more than half of the anal canal or the perianal region.
Once everyone was enrolled, researchers began monitoring and treatment, looking specifically for 31 cases of cancer – a number the team had determined that they’d need in order to draw any conclusions. Dr. Palefsky didn’t have to wait long. They were still trying to enroll the last 1,000 participants to have the power necessary to reach that number when the cancer diagnoses came in.
Dr. Palefsky told this news organization that the reason for that is unclear. It could be that some of those cases would have resolved on their own, and so the swiftness with which they reached the required number of cancer cases belies their seriousness. It could also be that the particular people who enrolled in this trial were engaging in behaviors that put them at even higher risk for anal cancer than the population of people living with HIV in the United States.
Or it could be that symptom-based screening is missing a lot of cancers that currently go untreated.
“So perhaps we will be seeing an increase in anal cancer reported in the future compared to the currently reported rates,” he said. “We don’t really know.”
Regardless of the reason for the speed to cases of cancer, the results were definitive: Nine participants were diagnosed with invasive anal cancer in the treatment arm, while 21 were diagnosed with invasive anal cancer in the control arm. That’s a 57% reduction in cancer occurrence between the arms. Or, to put it another way, the rate of anal cancer among people in the treatment arm was 173 per 100,000 people-years. In the active monitoring arm, it was 402 per 100,000 person-years. For context, the overall rate of anal cancer among people living with HIV is 50 per 100,000 person-years. The rate in the general U.S. population is 8 per 100,000 people-years.
The experimental treatment was such a definitive success that the investigators stopped the trial and shifted all participants in the control arm to treatment.
‘We have to build’
Before Dr. Palefsky was even done presenting the data, clinicians, people living with HIV, and experts at the session were already brainstorming as to how to get these results into practice.
“These data are what we have long needed to fuel some action on this important problem, including medical cost reimbursement through insurance and increasing the number of persons trained and capable in anal cancer screening,” John Brooks, MD, head of the epidemiology research team at the Centers for Disease Control and Prevention’s division of HIV/AIDS prevention, wrote in the virtual chat.
Jeff Taylor, a member of the ANCHOR advisory board and a person living with HIV who participated in one of the first azidothymidine trials in the late 1980s, responded quickly.
“What kind of advocacy from researchers, HIV clinicians and [people living with HIV] is needed to get this on treatment guidelines, HRA providers trained and certified, and payors to cover this so [people living with HIV] actually have access to lifesaving screening and [treatment]?” Mr. Taylor asked.
It’s a serious challenge. David Malebranche, MD, an Atlanta-based internal medicine physician who specializes in sexual health and HIV, commented in an interview. When he saw the initial press release last year on the ANCHOR findings, his first reaction was: “Thank god. We finally have some data to show what we’ve been trying to get people to do” all along.
But then he wondered, who is going to perform these tests? It’s a fair question. Currently, the wait for an HRA is 6-12 months in many parts of the country. And Dr. Malebranche can’t imagine this being added to his already full plate as a primary care provider.
“If you tell a primary care provider now that they have to do a rectal Pap smear, that’s going to be a problem while you’re also asking them to screen each patient for depression, anxiety, domestic abuse, intimate partner violence, all the healthcare maintenance and all the other screening tests – and then you deal with not only the urgent complaint but then all the complex medical issues on top of that – in a 15-minute or 10-minute visit,” he said.
Now that we have these data, he said, “we have to build.”
Dr. Palefsky agreed. Very few centers have enough people skilled at performing HRAs to meet the current demand, and it’s not realistic to expect clinicians to perform an HRA every 6 months like the study team did. There need to be algorithms put in place to help practitioners figure out who among their patients living with HIV could benefit from this increased screening, as well as biomarkers to identify HSIL progression and regression without the use of HRA, Dr. Palefsky told attendees. And more clinicians need to be recruited and trained to read HRAs, which can be difficult for the untrained eye to decipher.
Dr. Malebranche added another, more fundamental thing that needs to be built. Dr. Malebranche has worked in HIV clinics where the majority of his patients qualify for insurance under the Ryan White Program and get their medications through the AIDS Drug Assistance Program. While Ryan White programs can provide critical wraparound care, Dr. Malebranche has had to refer out for something like an HRA or cancer treatment. But the people who only access care through such programs may not have coverage with the clinics that perform HRA or that treat cancer. And that’s if they can even find someone to see them.
“If I live in a state like Georgia, which doesn’t have Medicaid expansion and we have people who are uninsured, where do you send them?” Dr. Malebranche asked. “This isn’t theoretical. I ran into this problem when I was working at the AIDS Healthcare Foundation last year. ... This is a call for infrastructure.”
The study was funded by the National Cancer Institute. Dr. Brooks reported no relevant financial relationships. Dr. Palefsky has received consultant fees from Merck, Vir Biotechnology, Virion Therapeutics, and Antiva Bioscience, as well as speaker fees from Merck. Dr. Malebranche has received consulting and advising fees from ViiV Healthcare.
A version of this article first appeared on Medscape.com.
FROM CROI 2022
Breast cancer trials enrolling now: Could your patient benefit?
• Menopausal women at moderate risk of developing breast cancer. A phase 2 study sponsored by the National Cancer Institute is seeking women aged 45-60 in late menopause or post menopause who are at “moderate” risk of developing breast cancer. Examples of criteria for moderate risk include prior proliferative disease on breast biopsy or having a first- or second-degree relative who developed breast cancer at aged 60 or younger. Researchers are looking for a signal that bazedoxifene plus conjugated estrogens (Duavee), a hot-flash therapy, could prevent breast cancer in at-risk people. Participants in the active-therapy group will receive once-daily oral medication for 6 months. The control patients will have the option of taking the medication after 6 months. The trial aims to enroll 120 participants. It began recruiting on Dec. 2, 2021, at the University of Kansas Medical Center; sites in California, Illinois, and Massachusetts are planned. The primary outcome is the change in fibroglandular volume. Overall survival (OS) and quality of life (QOL) will not be measured. More details at clinicaltrials.gov.
• Early high-risk nonmetastatic HER2+ breast cancer with no prior treatment. Adults with this type of breast cancer are invited to join a phase 3 trial of trastuzumab deruxtecan (T-DXd; Enhertu) as neoadjuvant therapy. T-DXd is currently approved for patients with advanced disease, so this study could lead to a new indication. Participants will receive standard intravenous regimens of either T-DXd monotherapy; T-DXd followed by paclitaxel (Taxol), trastuzumab (Herceptin), and pertuzumab (Perjeta), referred to as the THP regime; or doxorubicin plus cyclophosphamide followed by THP. The primary outcome is rate of pathologic complete response, and a secondary outcome is OS over approximately 5 years. QOL won’t be measured. The study opened on Oct. 25, 2021, and eventually hopes to recruit 624 participants in 19 countries and 15 U.S. states. More details at clinicaltrials.gov.
“[This is an] important early trial to move trastuzumab deruxtecan to early disease. If successful as monotherapy, this would be a big win for patients,” commented Kathy Miller, MD, professor of oncology and medicine at Indiana University, Indianapolis, a contributor to this news organization. She cautioned that monitoring rates of pneumonitis will be important in this curable setting.
• Locally advanced unresectable or metastatic HER2+ breast cancer with no prior tyrosine-kinase inhibitor therapy. Adult patients with these clinical features are eligible for a phase 3 study that is also testing a drug in an earlier setting than its current label – tucatinib (Tukysa) as first-line anti-HER2 therapy in advanced disease. Tucatinib was approved in April 2020 by the U.S. Food and Drug Administration as second-line therapy in such patients, so this study could also lead to a new indication. Participants in the experimental arm will receive tucatinib tablets twice daily and a combination of trastuzumab and pertuzumab intravenously or subcutaneously every 3 weeks for up to approximately 3 years. Patients in the control arm will take a placebo instead of tucatinib. Seven sites across Florida, Kentucky, Maryland, and South Carolina aim to start recruiting 650 participants on Feb. 28, 2022. The primary outcome is progression-free survival (PFS). OS and QoL will be tracked. More details at clinicaltrials.gov.
“Tucatinib has real activity,” commented Dr. Miller, adding that “we haven’t [yet] found the best way to exploit that activity for our patients.”
• Inoperable or metastatic HR+ HER2– breast cancer after one or two lines of systemic chemotherapy. Adults with this type of breast cancer are being recruited for a phase 3 study to compare datopotamab deruxtecan (Dato-DXd), an experimental antibody-drug conjugate (ADC), against a range of standard single-agent chemotherapies. Participants will receive either intravenous Dato-DXd or investigator’s choice of one of four chemotherapies: oral capecitabine (Xeloda), IV gemcitabine (Gemzar), IV eribulin (Halaven), or IV vinorelbine (Navelbine). The trial began recruiting for 700 participants at sites worldwide on Oct. 18, 2021. U.S. sites are in Michigan and California; trial centers in 15 other states are planned. Primary outcomes are OS over approximately 3.5 years and PFS over approximately 2 years. QOL is tracked. More details at clinicaltrials.gov.
Commenting on this trial, Dr. Miller said: “ADCs will play an expanded role in our management. This may be one of the first to move into the ER+ population.”
• Advanced ER+, HER2– breast cancer. Adult patients with this type of cancer can join a phase 3 trial testing oral imlunestrant, an experimental selective estrogen-receptor degrader (SERD), against standard endocrine therapy. For up to 3 years, people in the study will take either daily tablets of imlunestrant or once-daily pills of imlunestrant and another SERD, abemaciclib (Verzenio). A third group of participants will receive their investigator’s choice of either daily tablets of exemestane (Aromasin) or monthly intramuscular injections of fulvestrant (Faslodex). The study opened to 800 participants on Oct. 4, 2021, at sites in 11 U.S. states and worldwide. The primary outcome is PFS over approximately 3 years; 5-year OS is a secondary outcome. QOL is not assessed. More details at clinicaltrials.gov
Dr. Miller predicted that “oral SERDs will replace fulvestrant in the future: We already have positive phase 3 data with elacestrant.”
Dr. Miller has a regular column with this news organization, Miller on Oncology. She has disclosed no relevant financial relationships. A version of this article first appeared on Medscape.com.
• Menopausal women at moderate risk of developing breast cancer. A phase 2 study sponsored by the National Cancer Institute is seeking women aged 45-60 in late menopause or post menopause who are at “moderate” risk of developing breast cancer. Examples of criteria for moderate risk include prior proliferative disease on breast biopsy or having a first- or second-degree relative who developed breast cancer at aged 60 or younger. Researchers are looking for a signal that bazedoxifene plus conjugated estrogens (Duavee), a hot-flash therapy, could prevent breast cancer in at-risk people. Participants in the active-therapy group will receive once-daily oral medication for 6 months. The control patients will have the option of taking the medication after 6 months. The trial aims to enroll 120 participants. It began recruiting on Dec. 2, 2021, at the University of Kansas Medical Center; sites in California, Illinois, and Massachusetts are planned. The primary outcome is the change in fibroglandular volume. Overall survival (OS) and quality of life (QOL) will not be measured. More details at clinicaltrials.gov.
• Early high-risk nonmetastatic HER2+ breast cancer with no prior treatment. Adults with this type of breast cancer are invited to join a phase 3 trial of trastuzumab deruxtecan (T-DXd; Enhertu) as neoadjuvant therapy. T-DXd is currently approved for patients with advanced disease, so this study could lead to a new indication. Participants will receive standard intravenous regimens of either T-DXd monotherapy; T-DXd followed by paclitaxel (Taxol), trastuzumab (Herceptin), and pertuzumab (Perjeta), referred to as the THP regime; or doxorubicin plus cyclophosphamide followed by THP. The primary outcome is rate of pathologic complete response, and a secondary outcome is OS over approximately 5 years. QOL won’t be measured. The study opened on Oct. 25, 2021, and eventually hopes to recruit 624 participants in 19 countries and 15 U.S. states. More details at clinicaltrials.gov.
“[This is an] important early trial to move trastuzumab deruxtecan to early disease. If successful as monotherapy, this would be a big win for patients,” commented Kathy Miller, MD, professor of oncology and medicine at Indiana University, Indianapolis, a contributor to this news organization. She cautioned that monitoring rates of pneumonitis will be important in this curable setting.
• Locally advanced unresectable or metastatic HER2+ breast cancer with no prior tyrosine-kinase inhibitor therapy. Adult patients with these clinical features are eligible for a phase 3 study that is also testing a drug in an earlier setting than its current label – tucatinib (Tukysa) as first-line anti-HER2 therapy in advanced disease. Tucatinib was approved in April 2020 by the U.S. Food and Drug Administration as second-line therapy in such patients, so this study could also lead to a new indication. Participants in the experimental arm will receive tucatinib tablets twice daily and a combination of trastuzumab and pertuzumab intravenously or subcutaneously every 3 weeks for up to approximately 3 years. Patients in the control arm will take a placebo instead of tucatinib. Seven sites across Florida, Kentucky, Maryland, and South Carolina aim to start recruiting 650 participants on Feb. 28, 2022. The primary outcome is progression-free survival (PFS). OS and QoL will be tracked. More details at clinicaltrials.gov.
“Tucatinib has real activity,” commented Dr. Miller, adding that “we haven’t [yet] found the best way to exploit that activity for our patients.”
• Inoperable or metastatic HR+ HER2– breast cancer after one or two lines of systemic chemotherapy. Adults with this type of breast cancer are being recruited for a phase 3 study to compare datopotamab deruxtecan (Dato-DXd), an experimental antibody-drug conjugate (ADC), against a range of standard single-agent chemotherapies. Participants will receive either intravenous Dato-DXd or investigator’s choice of one of four chemotherapies: oral capecitabine (Xeloda), IV gemcitabine (Gemzar), IV eribulin (Halaven), or IV vinorelbine (Navelbine). The trial began recruiting for 700 participants at sites worldwide on Oct. 18, 2021. U.S. sites are in Michigan and California; trial centers in 15 other states are planned. Primary outcomes are OS over approximately 3.5 years and PFS over approximately 2 years. QOL is tracked. More details at clinicaltrials.gov.
Commenting on this trial, Dr. Miller said: “ADCs will play an expanded role in our management. This may be one of the first to move into the ER+ population.”
• Advanced ER+, HER2– breast cancer. Adult patients with this type of cancer can join a phase 3 trial testing oral imlunestrant, an experimental selective estrogen-receptor degrader (SERD), against standard endocrine therapy. For up to 3 years, people in the study will take either daily tablets of imlunestrant or once-daily pills of imlunestrant and another SERD, abemaciclib (Verzenio). A third group of participants will receive their investigator’s choice of either daily tablets of exemestane (Aromasin) or monthly intramuscular injections of fulvestrant (Faslodex). The study opened to 800 participants on Oct. 4, 2021, at sites in 11 U.S. states and worldwide. The primary outcome is PFS over approximately 3 years; 5-year OS is a secondary outcome. QOL is not assessed. More details at clinicaltrials.gov
Dr. Miller predicted that “oral SERDs will replace fulvestrant in the future: We already have positive phase 3 data with elacestrant.”
Dr. Miller has a regular column with this news organization, Miller on Oncology. She has disclosed no relevant financial relationships. A version of this article first appeared on Medscape.com.
• Menopausal women at moderate risk of developing breast cancer. A phase 2 study sponsored by the National Cancer Institute is seeking women aged 45-60 in late menopause or post menopause who are at “moderate” risk of developing breast cancer. Examples of criteria for moderate risk include prior proliferative disease on breast biopsy or having a first- or second-degree relative who developed breast cancer at aged 60 or younger. Researchers are looking for a signal that bazedoxifene plus conjugated estrogens (Duavee), a hot-flash therapy, could prevent breast cancer in at-risk people. Participants in the active-therapy group will receive once-daily oral medication for 6 months. The control patients will have the option of taking the medication after 6 months. The trial aims to enroll 120 participants. It began recruiting on Dec. 2, 2021, at the University of Kansas Medical Center; sites in California, Illinois, and Massachusetts are planned. The primary outcome is the change in fibroglandular volume. Overall survival (OS) and quality of life (QOL) will not be measured. More details at clinicaltrials.gov.
• Early high-risk nonmetastatic HER2+ breast cancer with no prior treatment. Adults with this type of breast cancer are invited to join a phase 3 trial of trastuzumab deruxtecan (T-DXd; Enhertu) as neoadjuvant therapy. T-DXd is currently approved for patients with advanced disease, so this study could lead to a new indication. Participants will receive standard intravenous regimens of either T-DXd monotherapy; T-DXd followed by paclitaxel (Taxol), trastuzumab (Herceptin), and pertuzumab (Perjeta), referred to as the THP regime; or doxorubicin plus cyclophosphamide followed by THP. The primary outcome is rate of pathologic complete response, and a secondary outcome is OS over approximately 5 years. QOL won’t be measured. The study opened on Oct. 25, 2021, and eventually hopes to recruit 624 participants in 19 countries and 15 U.S. states. More details at clinicaltrials.gov.
“[This is an] important early trial to move trastuzumab deruxtecan to early disease. If successful as monotherapy, this would be a big win for patients,” commented Kathy Miller, MD, professor of oncology and medicine at Indiana University, Indianapolis, a contributor to this news organization. She cautioned that monitoring rates of pneumonitis will be important in this curable setting.
• Locally advanced unresectable or metastatic HER2+ breast cancer with no prior tyrosine-kinase inhibitor therapy. Adult patients with these clinical features are eligible for a phase 3 study that is also testing a drug in an earlier setting than its current label – tucatinib (Tukysa) as first-line anti-HER2 therapy in advanced disease. Tucatinib was approved in April 2020 by the U.S. Food and Drug Administration as second-line therapy in such patients, so this study could also lead to a new indication. Participants in the experimental arm will receive tucatinib tablets twice daily and a combination of trastuzumab and pertuzumab intravenously or subcutaneously every 3 weeks for up to approximately 3 years. Patients in the control arm will take a placebo instead of tucatinib. Seven sites across Florida, Kentucky, Maryland, and South Carolina aim to start recruiting 650 participants on Feb. 28, 2022. The primary outcome is progression-free survival (PFS). OS and QoL will be tracked. More details at clinicaltrials.gov.
“Tucatinib has real activity,” commented Dr. Miller, adding that “we haven’t [yet] found the best way to exploit that activity for our patients.”
• Inoperable or metastatic HR+ HER2– breast cancer after one or two lines of systemic chemotherapy. Adults with this type of breast cancer are being recruited for a phase 3 study to compare datopotamab deruxtecan (Dato-DXd), an experimental antibody-drug conjugate (ADC), against a range of standard single-agent chemotherapies. Participants will receive either intravenous Dato-DXd or investigator’s choice of one of four chemotherapies: oral capecitabine (Xeloda), IV gemcitabine (Gemzar), IV eribulin (Halaven), or IV vinorelbine (Navelbine). The trial began recruiting for 700 participants at sites worldwide on Oct. 18, 2021. U.S. sites are in Michigan and California; trial centers in 15 other states are planned. Primary outcomes are OS over approximately 3.5 years and PFS over approximately 2 years. QOL is tracked. More details at clinicaltrials.gov.
Commenting on this trial, Dr. Miller said: “ADCs will play an expanded role in our management. This may be one of the first to move into the ER+ population.”
• Advanced ER+, HER2– breast cancer. Adult patients with this type of cancer can join a phase 3 trial testing oral imlunestrant, an experimental selective estrogen-receptor degrader (SERD), against standard endocrine therapy. For up to 3 years, people in the study will take either daily tablets of imlunestrant or once-daily pills of imlunestrant and another SERD, abemaciclib (Verzenio). A third group of participants will receive their investigator’s choice of either daily tablets of exemestane (Aromasin) or monthly intramuscular injections of fulvestrant (Faslodex). The study opened to 800 participants on Oct. 4, 2021, at sites in 11 U.S. states and worldwide. The primary outcome is PFS over approximately 3 years; 5-year OS is a secondary outcome. QOL is not assessed. More details at clinicaltrials.gov
Dr. Miller predicted that “oral SERDs will replace fulvestrant in the future: We already have positive phase 3 data with elacestrant.”
Dr. Miller has a regular column with this news organization, Miller on Oncology. She has disclosed no relevant financial relationships. A version of this article first appeared on Medscape.com.
Women at higher risk of serious adverse events from cancer therapy
and this is seen with chemotherapy, targeted agents, and especially with immunotherapy.
The finding comes from a review of more than 23,000 participants across 202 trials of various cancers (excluding sex-related cancers) that has been conducted over the past 40 years.
The investigators found a 34% increased risk of severe AEs among women, compared with men, climbing to a 49% higher risk with immunotherapy.
Women had a substantially greater risk of severe symptomatic AEs, including with immune checkpoint inhibitors and targeted tyrosine kinase inhibitors, and were more likely to experience severe hematologic AEs with chemotherapy and immunotherapy.
The particularly large sex differences with immunotherapy suggest “that studying AEs from these agents is a priority,” the investigators comment.
The article was published online on Feb. 4 in the Journal of Clinical Oncology.
“It has been understood that women have more toxicity from chemotherapy than men, but almost no research has aimed to understand whether that pattern held for novel treatments like immunotherapy or targeted therapies. We found similar large differences, especially for immune treatments,” said lead investigator Joseph Unger, PhD, a biostatistician and health services researcher at the Fred Hutchinson Cancer Research Center, Seattle, in an institutional press release.
A “better understanding of the nature of the underlying mechanisms could potentially lead to interventions or delivery modifications to reduce toxicity in women,” the investigators comment in their article.
Among a sea of possible explanations for the finding, there could be differences in how men and women metabolize cancer therapies or differences in how they perceive symptoms. Women may also receive relatively higher doses because of their body size or have higher adherence to treatment.
Whatever the case, as cancer treatment becomes increasingly individualized, “sex may be an important consideration,” Dr. Unger said.
Study details
The study involved 8,838 women and 14,458 men across the trials, which were phase 2 or 3 investigations conducted by the SWOG Cancer Research Network from 1980 to 2019. Trials including sex-related cancers were excluded. In the trials included in the review, the most common cancers were gastrointestinal and lung, followed by leukemia.
Seventy-five percent of the subjects received chemotherapy, and the rest received either targeted therapy or immunotherapy.
Two-thirds of the subjects had at least one grade 3 or higher AE; women had a 25% higher risk than men of having AEs of grade 5 or higher.
After adjusting for age, race, disease prognosis, and other factors, women were at increased risk of severe symptomatic AEs, such as nausea and pain, across all treatment lines and especially with immunotherapy, for which reports of symptomatic AEs were 66% higher.
Women also had a higher risk of symptomatic gastrointestinal AEs with all three treatments and a higher risk of sleep-related AEs with chemotherapy and immunotherapy, which “could be a function of hormonal effects interacting with cancer treatment,” the investigators said.
As for readily measurable AEs, women were at higher risk than men for objective hematologic AEs with chemotherapy, immunotherapy, and targeted therapy. There were no statistically significant sex differences in the risk of nonhematologic objective AEs.
The team notes that increased toxicity among women has been associated with improved survival, which may give AEs more time to develop. Higher rates of AEs might also signal increased delivery or efficacy of cancer treatments.
However, a previous study found that men may have a better response to immunotherapy than women. Immune checkpoint inhibitors were twice as effective as standard cancer therapies in the treatment of men with advanced solid tumors compared to their female counterparts, concluded a team that carried out a meta-analysis of 20 randomized controlled trials involving more than 11,351 patients.
The study was funded by the National Cancer Institute and others. Dr. Unger has disclosed no relevant financial relationships. Several coauthors have reported ties to a handful of companies, including Johnson & Johnson and Seattle Genetics. One is an employee of AIM Specialty Health.
A version of this article first appeared on Medscape.com.
and this is seen with chemotherapy, targeted agents, and especially with immunotherapy.
The finding comes from a review of more than 23,000 participants across 202 trials of various cancers (excluding sex-related cancers) that has been conducted over the past 40 years.
The investigators found a 34% increased risk of severe AEs among women, compared with men, climbing to a 49% higher risk with immunotherapy.
Women had a substantially greater risk of severe symptomatic AEs, including with immune checkpoint inhibitors and targeted tyrosine kinase inhibitors, and were more likely to experience severe hematologic AEs with chemotherapy and immunotherapy.
The particularly large sex differences with immunotherapy suggest “that studying AEs from these agents is a priority,” the investigators comment.
The article was published online on Feb. 4 in the Journal of Clinical Oncology.
“It has been understood that women have more toxicity from chemotherapy than men, but almost no research has aimed to understand whether that pattern held for novel treatments like immunotherapy or targeted therapies. We found similar large differences, especially for immune treatments,” said lead investigator Joseph Unger, PhD, a biostatistician and health services researcher at the Fred Hutchinson Cancer Research Center, Seattle, in an institutional press release.
A “better understanding of the nature of the underlying mechanisms could potentially lead to interventions or delivery modifications to reduce toxicity in women,” the investigators comment in their article.
Among a sea of possible explanations for the finding, there could be differences in how men and women metabolize cancer therapies or differences in how they perceive symptoms. Women may also receive relatively higher doses because of their body size or have higher adherence to treatment.
Whatever the case, as cancer treatment becomes increasingly individualized, “sex may be an important consideration,” Dr. Unger said.
Study details
The study involved 8,838 women and 14,458 men across the trials, which were phase 2 or 3 investigations conducted by the SWOG Cancer Research Network from 1980 to 2019. Trials including sex-related cancers were excluded. In the trials included in the review, the most common cancers were gastrointestinal and lung, followed by leukemia.
Seventy-five percent of the subjects received chemotherapy, and the rest received either targeted therapy or immunotherapy.
Two-thirds of the subjects had at least one grade 3 or higher AE; women had a 25% higher risk than men of having AEs of grade 5 or higher.
After adjusting for age, race, disease prognosis, and other factors, women were at increased risk of severe symptomatic AEs, such as nausea and pain, across all treatment lines and especially with immunotherapy, for which reports of symptomatic AEs were 66% higher.
Women also had a higher risk of symptomatic gastrointestinal AEs with all three treatments and a higher risk of sleep-related AEs with chemotherapy and immunotherapy, which “could be a function of hormonal effects interacting with cancer treatment,” the investigators said.
As for readily measurable AEs, women were at higher risk than men for objective hematologic AEs with chemotherapy, immunotherapy, and targeted therapy. There were no statistically significant sex differences in the risk of nonhematologic objective AEs.
The team notes that increased toxicity among women has been associated with improved survival, which may give AEs more time to develop. Higher rates of AEs might also signal increased delivery or efficacy of cancer treatments.
However, a previous study found that men may have a better response to immunotherapy than women. Immune checkpoint inhibitors were twice as effective as standard cancer therapies in the treatment of men with advanced solid tumors compared to their female counterparts, concluded a team that carried out a meta-analysis of 20 randomized controlled trials involving more than 11,351 patients.
The study was funded by the National Cancer Institute and others. Dr. Unger has disclosed no relevant financial relationships. Several coauthors have reported ties to a handful of companies, including Johnson & Johnson and Seattle Genetics. One is an employee of AIM Specialty Health.
A version of this article first appeared on Medscape.com.
and this is seen with chemotherapy, targeted agents, and especially with immunotherapy.
The finding comes from a review of more than 23,000 participants across 202 trials of various cancers (excluding sex-related cancers) that has been conducted over the past 40 years.
The investigators found a 34% increased risk of severe AEs among women, compared with men, climbing to a 49% higher risk with immunotherapy.
Women had a substantially greater risk of severe symptomatic AEs, including with immune checkpoint inhibitors and targeted tyrosine kinase inhibitors, and were more likely to experience severe hematologic AEs with chemotherapy and immunotherapy.
The particularly large sex differences with immunotherapy suggest “that studying AEs from these agents is a priority,” the investigators comment.
The article was published online on Feb. 4 in the Journal of Clinical Oncology.
“It has been understood that women have more toxicity from chemotherapy than men, but almost no research has aimed to understand whether that pattern held for novel treatments like immunotherapy or targeted therapies. We found similar large differences, especially for immune treatments,” said lead investigator Joseph Unger, PhD, a biostatistician and health services researcher at the Fred Hutchinson Cancer Research Center, Seattle, in an institutional press release.
A “better understanding of the nature of the underlying mechanisms could potentially lead to interventions or delivery modifications to reduce toxicity in women,” the investigators comment in their article.
Among a sea of possible explanations for the finding, there could be differences in how men and women metabolize cancer therapies or differences in how they perceive symptoms. Women may also receive relatively higher doses because of their body size or have higher adherence to treatment.
Whatever the case, as cancer treatment becomes increasingly individualized, “sex may be an important consideration,” Dr. Unger said.
Study details
The study involved 8,838 women and 14,458 men across the trials, which were phase 2 or 3 investigations conducted by the SWOG Cancer Research Network from 1980 to 2019. Trials including sex-related cancers were excluded. In the trials included in the review, the most common cancers were gastrointestinal and lung, followed by leukemia.
Seventy-five percent of the subjects received chemotherapy, and the rest received either targeted therapy or immunotherapy.
Two-thirds of the subjects had at least one grade 3 or higher AE; women had a 25% higher risk than men of having AEs of grade 5 or higher.
After adjusting for age, race, disease prognosis, and other factors, women were at increased risk of severe symptomatic AEs, such as nausea and pain, across all treatment lines and especially with immunotherapy, for which reports of symptomatic AEs were 66% higher.
Women also had a higher risk of symptomatic gastrointestinal AEs with all three treatments and a higher risk of sleep-related AEs with chemotherapy and immunotherapy, which “could be a function of hormonal effects interacting with cancer treatment,” the investigators said.
As for readily measurable AEs, women were at higher risk than men for objective hematologic AEs with chemotherapy, immunotherapy, and targeted therapy. There were no statistically significant sex differences in the risk of nonhematologic objective AEs.
The team notes that increased toxicity among women has been associated with improved survival, which may give AEs more time to develop. Higher rates of AEs might also signal increased delivery or efficacy of cancer treatments.
However, a previous study found that men may have a better response to immunotherapy than women. Immune checkpoint inhibitors were twice as effective as standard cancer therapies in the treatment of men with advanced solid tumors compared to their female counterparts, concluded a team that carried out a meta-analysis of 20 randomized controlled trials involving more than 11,351 patients.
The study was funded by the National Cancer Institute and others. Dr. Unger has disclosed no relevant financial relationships. Several coauthors have reported ties to a handful of companies, including Johnson & Johnson and Seattle Genetics. One is an employee of AIM Specialty Health.
A version of this article first appeared on Medscape.com.
President Biden’s ‘Cancer Moonshot’ to be relaunched
The “Cancer Moonshot” is about to be relaunched.
In a White House briefing, President Joe Biden announced that he is “reigniting” the initiative he spearheaded when he was vice president during the Obama administration.
During the livestreamed event, the president discussed his plans to bring a “fierce sense of urgency” to the fight against cancer and better support patients with cancer and their families.
He emphasized that cancer is one of the truly bipartisan issues. There is strong support from both “sides of the aisle,” he said, and he sees it as an issue that can bring the country together.
“We can do this. I promise you, we can do this. For all those we lost, for all those we miss. We can end cancer as we know it,” he said. “This is a presidential White House priority.”
The aim is to reduce the death rate from cancer by at least 50% over the next 25 years.
There is also a proposal to create the Advanced Research Projects Agency for Health, which would focus on driving cutting-edge innovation in health research.
Part of the plan is to assemble a “cancer cabinet” that includes 18 federal departments, agencies, and offices, including leaders from the departments of Health & Human Services, Veterans Affairs, Defense, Energy, and Agriculture.
At present, there are few details about the new program or how it will be funded.
Presumably more will be revealed at the Cancer Moonshot Summit being planned, as well as on a planned new website where people can track its progress.
President priority
Cancer Moonshot began back in 2016, when during his last State of the Union Address, former President Barack Obama announced the ambitious initiative. A few days later, Obama asked Congress for $1 billion to send cancer to the moon, and he put Biden, then vice president, in charge of “mission control” in the remaining months of the administration.
The new initiative will be headed by Danielle Carnival, PhD, who serves in the White House Office of Science and Technology Policy and has been appointed as White House Cancer Moonshot coordinator.
At the briefing, Mr. Biden and Vice President Kamala Harris spoke about losing family members to cancer. The president spoke about his eldest son, Beau, who died from brain cancer when he was 46 years old, while Ms. Harris spoke about her mother, Shyamala Gopalan, a breast cancer researcher who died of colon cancer in 2009.
Accolades but a bit of caution
The president’s speech was applauded by many cancer groups, both professional organizations and patient advocacy groups.
Karen E. Knudsen, PhD, chief executive officer of the American Cancer Society and its advocacy affiliate, the American Cancer Society Cancer Action Network, commended Mr. Biden for reigniting Cancer Moonshot.
“In 2022 alone, there will be an estimated 1.9 million people diagnosed with cancer and more than 600,000 people in the U.S. will die. Marshaling the resources of the federal government will be critical in our ability to reduce death and suffering from this disease,” she said.
The American Society for Radiation Oncology issued a press release, saying: “On behalf of radiation oncologists who treat people with cancer every day, we support the Biden-Harris administration’s move to drastically reduce the number of cancer deaths in the United States and improve the lives of people diagnosed with this disease.
“We believe the administration’s commitment to expand cancer prevention efforts and to increase equitable access to screenings and treatments will help mitigate some of the negative impact of the COVID-19 pandemic,” the society added.
At the American Association for Cancer Research, Chief Executive Officer Margaret Foti, MD, PhD, said she was thrilled to hear the announcement after the devastating interruptions in cancer research and patient care over the past 2 years.
“The reignited Cancer Moonshot will provide an important framework to help improve cancer prevention strategies, increase cancer screenings and early detection, reduce cancer disparities, and propel new lifesaving cures for patients with cancer,” she said.
However, increased funding from Congress will be needed for these goals to be achieved, she emphasized.
A version of this article first appeared on Medscape.com.
The “Cancer Moonshot” is about to be relaunched.
In a White House briefing, President Joe Biden announced that he is “reigniting” the initiative he spearheaded when he was vice president during the Obama administration.
During the livestreamed event, the president discussed his plans to bring a “fierce sense of urgency” to the fight against cancer and better support patients with cancer and their families.
He emphasized that cancer is one of the truly bipartisan issues. There is strong support from both “sides of the aisle,” he said, and he sees it as an issue that can bring the country together.
“We can do this. I promise you, we can do this. For all those we lost, for all those we miss. We can end cancer as we know it,” he said. “This is a presidential White House priority.”
The aim is to reduce the death rate from cancer by at least 50% over the next 25 years.
There is also a proposal to create the Advanced Research Projects Agency for Health, which would focus on driving cutting-edge innovation in health research.
Part of the plan is to assemble a “cancer cabinet” that includes 18 federal departments, agencies, and offices, including leaders from the departments of Health & Human Services, Veterans Affairs, Defense, Energy, and Agriculture.
At present, there are few details about the new program or how it will be funded.
Presumably more will be revealed at the Cancer Moonshot Summit being planned, as well as on a planned new website where people can track its progress.
President priority
Cancer Moonshot began back in 2016, when during his last State of the Union Address, former President Barack Obama announced the ambitious initiative. A few days later, Obama asked Congress for $1 billion to send cancer to the moon, and he put Biden, then vice president, in charge of “mission control” in the remaining months of the administration.
The new initiative will be headed by Danielle Carnival, PhD, who serves in the White House Office of Science and Technology Policy and has been appointed as White House Cancer Moonshot coordinator.
At the briefing, Mr. Biden and Vice President Kamala Harris spoke about losing family members to cancer. The president spoke about his eldest son, Beau, who died from brain cancer when he was 46 years old, while Ms. Harris spoke about her mother, Shyamala Gopalan, a breast cancer researcher who died of colon cancer in 2009.
Accolades but a bit of caution
The president’s speech was applauded by many cancer groups, both professional organizations and patient advocacy groups.
Karen E. Knudsen, PhD, chief executive officer of the American Cancer Society and its advocacy affiliate, the American Cancer Society Cancer Action Network, commended Mr. Biden for reigniting Cancer Moonshot.
“In 2022 alone, there will be an estimated 1.9 million people diagnosed with cancer and more than 600,000 people in the U.S. will die. Marshaling the resources of the federal government will be critical in our ability to reduce death and suffering from this disease,” she said.
The American Society for Radiation Oncology issued a press release, saying: “On behalf of radiation oncologists who treat people with cancer every day, we support the Biden-Harris administration’s move to drastically reduce the number of cancer deaths in the United States and improve the lives of people diagnosed with this disease.
“We believe the administration’s commitment to expand cancer prevention efforts and to increase equitable access to screenings and treatments will help mitigate some of the negative impact of the COVID-19 pandemic,” the society added.
At the American Association for Cancer Research, Chief Executive Officer Margaret Foti, MD, PhD, said she was thrilled to hear the announcement after the devastating interruptions in cancer research and patient care over the past 2 years.
“The reignited Cancer Moonshot will provide an important framework to help improve cancer prevention strategies, increase cancer screenings and early detection, reduce cancer disparities, and propel new lifesaving cures for patients with cancer,” she said.
However, increased funding from Congress will be needed for these goals to be achieved, she emphasized.
A version of this article first appeared on Medscape.com.
The “Cancer Moonshot” is about to be relaunched.
In a White House briefing, President Joe Biden announced that he is “reigniting” the initiative he spearheaded when he was vice president during the Obama administration.
During the livestreamed event, the president discussed his plans to bring a “fierce sense of urgency” to the fight against cancer and better support patients with cancer and their families.
He emphasized that cancer is one of the truly bipartisan issues. There is strong support from both “sides of the aisle,” he said, and he sees it as an issue that can bring the country together.
“We can do this. I promise you, we can do this. For all those we lost, for all those we miss. We can end cancer as we know it,” he said. “This is a presidential White House priority.”
The aim is to reduce the death rate from cancer by at least 50% over the next 25 years.
There is also a proposal to create the Advanced Research Projects Agency for Health, which would focus on driving cutting-edge innovation in health research.
Part of the plan is to assemble a “cancer cabinet” that includes 18 federal departments, agencies, and offices, including leaders from the departments of Health & Human Services, Veterans Affairs, Defense, Energy, and Agriculture.
At present, there are few details about the new program or how it will be funded.
Presumably more will be revealed at the Cancer Moonshot Summit being planned, as well as on a planned new website where people can track its progress.
President priority
Cancer Moonshot began back in 2016, when during his last State of the Union Address, former President Barack Obama announced the ambitious initiative. A few days later, Obama asked Congress for $1 billion to send cancer to the moon, and he put Biden, then vice president, in charge of “mission control” in the remaining months of the administration.
The new initiative will be headed by Danielle Carnival, PhD, who serves in the White House Office of Science and Technology Policy and has been appointed as White House Cancer Moonshot coordinator.
At the briefing, Mr. Biden and Vice President Kamala Harris spoke about losing family members to cancer. The president spoke about his eldest son, Beau, who died from brain cancer when he was 46 years old, while Ms. Harris spoke about her mother, Shyamala Gopalan, a breast cancer researcher who died of colon cancer in 2009.
Accolades but a bit of caution
The president’s speech was applauded by many cancer groups, both professional organizations and patient advocacy groups.
Karen E. Knudsen, PhD, chief executive officer of the American Cancer Society and its advocacy affiliate, the American Cancer Society Cancer Action Network, commended Mr. Biden for reigniting Cancer Moonshot.
“In 2022 alone, there will be an estimated 1.9 million people diagnosed with cancer and more than 600,000 people in the U.S. will die. Marshaling the resources of the federal government will be critical in our ability to reduce death and suffering from this disease,” she said.
The American Society for Radiation Oncology issued a press release, saying: “On behalf of radiation oncologists who treat people with cancer every day, we support the Biden-Harris administration’s move to drastically reduce the number of cancer deaths in the United States and improve the lives of people diagnosed with this disease.
“We believe the administration’s commitment to expand cancer prevention efforts and to increase equitable access to screenings and treatments will help mitigate some of the negative impact of the COVID-19 pandemic,” the society added.
At the American Association for Cancer Research, Chief Executive Officer Margaret Foti, MD, PhD, said she was thrilled to hear the announcement after the devastating interruptions in cancer research and patient care over the past 2 years.
“The reignited Cancer Moonshot will provide an important framework to help improve cancer prevention strategies, increase cancer screenings and early detection, reduce cancer disparities, and propel new lifesaving cures for patients with cancer,” she said.
However, increased funding from Congress will be needed for these goals to be achieved, she emphasized.
A version of this article first appeared on Medscape.com.
Earlier diagnosis could prevent more than 20% of cancer deaths
Those figures translate to 2,064 to 2,677 fewer cancer deaths annually in the state of New South Wales between 2005 and 2014, the most recent period studied.
“While it is well established that diagnosing cancers at an earlier stage is ‘better,’ our study is unique in that it quantifies what that ‘better’ might look like in terms of how many deaths would be avoided within 10 years of diagnosis,” the authors write in an article published online Jan. 17 in the International Journal of Cancer. “By doing so, it is hoped that these results will provide continued motivation to develop more effective strategies to diagnose cancers at an earlier stage.”
Of course, achieving such a “stage-shift in practice is difficult,” study author Xue Qin Yu, PhD, of The Daffodil Centre in Sydney and colleagues, acknowledge. First, Dr. Yu and colleagues note, “diagnosis at an earlier stage can be challenging due to the nonspecific nature of many common symptoms which may not be recognized by either patients or doctors.” Plus, they add, a challenge for diagnosing cancers at an earlier stage “is the overall low uptake of screening.”
For their study, the researchers used data from a cohort of more than 716,000 people aged 15 to 89 years diagnosed with a solid cancer in New South Wales between 1985 and 2014 and followed through 2015.
To estimate how many deaths could be avoided if tumors were caught earlier, the authors looked at two scenarios. In scenario 1, they assumed all known cases of distant cancer were instead diagnosed at the regional stage, and in scenario 2, they assumed half of the cases were diagnosed as regional and half as localized disease.
Under the conservative scenario 1, about 18% of the observed cancer deaths in males and 26% in females could be avoided. In total, this corresponded to 21% of observed deaths.
Colorectal cancer topped the list of avoidable deaths in both men (27%) and women (33%), followed by prostate cancer in men (19%), breast cancer in women (18%), and melanoma in women (16%) and men (13%).
Under scenario 2, 24% of cancer deaths in males and 32% in females – or 28% overall – were avoidable.
The researchers caution that their study is limited by a high proportion of cases of unknown stage. Still, they say their findings are consistent with results from the United States indicating 15% to 25% of cancer-related deaths were potentially avoidable if tumors were detected before metastasizing.
“Given our study cohort was sourced from a population-based cancer registry with complete enumeration of cancers diagnosed during the study period, it is likely that our study findings, particularly in terms of the population rate of avoidable deaths, would be generalizable to other populations with similar characteristics,” Dr. Yu and colleagues write. “However, results may be different in countries that have a different mix of cancer types or distribution of stage at diagnosis.”
A version of this article first appeared on Medscape.com.
Those figures translate to 2,064 to 2,677 fewer cancer deaths annually in the state of New South Wales between 2005 and 2014, the most recent period studied.
“While it is well established that diagnosing cancers at an earlier stage is ‘better,’ our study is unique in that it quantifies what that ‘better’ might look like in terms of how many deaths would be avoided within 10 years of diagnosis,” the authors write in an article published online Jan. 17 in the International Journal of Cancer. “By doing so, it is hoped that these results will provide continued motivation to develop more effective strategies to diagnose cancers at an earlier stage.”
Of course, achieving such a “stage-shift in practice is difficult,” study author Xue Qin Yu, PhD, of The Daffodil Centre in Sydney and colleagues, acknowledge. First, Dr. Yu and colleagues note, “diagnosis at an earlier stage can be challenging due to the nonspecific nature of many common symptoms which may not be recognized by either patients or doctors.” Plus, they add, a challenge for diagnosing cancers at an earlier stage “is the overall low uptake of screening.”
For their study, the researchers used data from a cohort of more than 716,000 people aged 15 to 89 years diagnosed with a solid cancer in New South Wales between 1985 and 2014 and followed through 2015.
To estimate how many deaths could be avoided if tumors were caught earlier, the authors looked at two scenarios. In scenario 1, they assumed all known cases of distant cancer were instead diagnosed at the regional stage, and in scenario 2, they assumed half of the cases were diagnosed as regional and half as localized disease.
Under the conservative scenario 1, about 18% of the observed cancer deaths in males and 26% in females could be avoided. In total, this corresponded to 21% of observed deaths.
Colorectal cancer topped the list of avoidable deaths in both men (27%) and women (33%), followed by prostate cancer in men (19%), breast cancer in women (18%), and melanoma in women (16%) and men (13%).
Under scenario 2, 24% of cancer deaths in males and 32% in females – or 28% overall – were avoidable.
The researchers caution that their study is limited by a high proportion of cases of unknown stage. Still, they say their findings are consistent with results from the United States indicating 15% to 25% of cancer-related deaths were potentially avoidable if tumors were detected before metastasizing.
“Given our study cohort was sourced from a population-based cancer registry with complete enumeration of cancers diagnosed during the study period, it is likely that our study findings, particularly in terms of the population rate of avoidable deaths, would be generalizable to other populations with similar characteristics,” Dr. Yu and colleagues write. “However, results may be different in countries that have a different mix of cancer types or distribution of stage at diagnosis.”
A version of this article first appeared on Medscape.com.
Those figures translate to 2,064 to 2,677 fewer cancer deaths annually in the state of New South Wales between 2005 and 2014, the most recent period studied.
“While it is well established that diagnosing cancers at an earlier stage is ‘better,’ our study is unique in that it quantifies what that ‘better’ might look like in terms of how many deaths would be avoided within 10 years of diagnosis,” the authors write in an article published online Jan. 17 in the International Journal of Cancer. “By doing so, it is hoped that these results will provide continued motivation to develop more effective strategies to diagnose cancers at an earlier stage.”
Of course, achieving such a “stage-shift in practice is difficult,” study author Xue Qin Yu, PhD, of The Daffodil Centre in Sydney and colleagues, acknowledge. First, Dr. Yu and colleagues note, “diagnosis at an earlier stage can be challenging due to the nonspecific nature of many common symptoms which may not be recognized by either patients or doctors.” Plus, they add, a challenge for diagnosing cancers at an earlier stage “is the overall low uptake of screening.”
For their study, the researchers used data from a cohort of more than 716,000 people aged 15 to 89 years diagnosed with a solid cancer in New South Wales between 1985 and 2014 and followed through 2015.
To estimate how many deaths could be avoided if tumors were caught earlier, the authors looked at two scenarios. In scenario 1, they assumed all known cases of distant cancer were instead diagnosed at the regional stage, and in scenario 2, they assumed half of the cases were diagnosed as regional and half as localized disease.
Under the conservative scenario 1, about 18% of the observed cancer deaths in males and 26% in females could be avoided. In total, this corresponded to 21% of observed deaths.
Colorectal cancer topped the list of avoidable deaths in both men (27%) and women (33%), followed by prostate cancer in men (19%), breast cancer in women (18%), and melanoma in women (16%) and men (13%).
Under scenario 2, 24% of cancer deaths in males and 32% in females – or 28% overall – were avoidable.
The researchers caution that their study is limited by a high proportion of cases of unknown stage. Still, they say their findings are consistent with results from the United States indicating 15% to 25% of cancer-related deaths were potentially avoidable if tumors were detected before metastasizing.
“Given our study cohort was sourced from a population-based cancer registry with complete enumeration of cancers diagnosed during the study period, it is likely that our study findings, particularly in terms of the population rate of avoidable deaths, would be generalizable to other populations with similar characteristics,” Dr. Yu and colleagues write. “However, results may be different in countries that have a different mix of cancer types or distribution of stage at diagnosis.”
A version of this article first appeared on Medscape.com.