AVAHO

Statin use may significantly lower the risk of colorectal cancer (CRC) in patients with or without inflammatory bowel disease (IBD), based on a meta-analysis and systematic review.

In more than 15,000 patients with IBD, statin use was associated with a 60% reduced risk of CRC, reported lead author Kevin N. Singh, MD, of NYU Langone Medical Center in New York, and colleagues.

“Statin use has been linked with a risk reduction for cancers including hepatocellular carcinoma, breast, gastric, pancreatic, and biliary tract cancers, but data supporting the use of statins for chemoprevention against CRC is conflicting,” Dr. Singh said during a virtual presentation at the annual meeting of the American College of Gastroenterology.

He noted a 2014 meta-analysis by Lytras and colleagues that reported a 9% CRC risk reduction in statin users who did not have IBD. In patients with IBD, data are scarce, according to Dr. Singh.

To further explore the relationship between statin use and CRC in patients without IBD, the investigators analyzed data from 52 studies, including 8 randomized clinical trials, 17 cohort studies, and 27 case-control studies. Of the 11,459,306 patients involved, approximately 2 million used statins and roughly 9 million did not.

To evaluate the same relationship in patients with IBD, the investigators conducted a separate meta-analysis involving 15,342 patients from 5 observational studies, 1 of which was an unpublished abstract. In the 4 published studies, 1,161 patients used statins while 12,145 did not.

In the non-IBD population, statin use was associated with a 20% reduced risk of CRC (pooled odds ratio, 0.80; 95% confidence interval, 0.73-0.88; P less than .001). In patients with IBD, statin use was associated with a 60% CRC risk reduction (pooled OR, 0.40; 95% CI, 0.19-0.86, P = .019).

Dr. Singh noted “significant heterogeneity” in both analyses (I2 greater than 75), most prominently in the IBD populations, which he ascribed to “differences in demographic features, ethnic groups, and risk factors for CRC.”

While publication bias was absent from the non-IBD analysis, it was detected in the IBD portion of the study. Dr. Singh said that selection bias may also have been present in the IBD analysis, due to exclusive use of observational studies.

“Prospective trials are needed to confirm the risk reduction of CRC in the IBD population, including whether the effects of statins differ between ulcerative colitis and Crohn’s disease patients,” Dr. Singh said.

Additional analyses are underway, he added, including one that will account for the potentially confounding effect of aspirin use.

According to David E. Kaplan, MD, of the University of Pennsylvania, Philadelphia, “The finding that statins are associated with reduced CRC in IBD provides additional support for the clinical importance of the antineoplastic effects of statins. This effect has been strongly observed in liver cancer, and is pending prospective validation.”

Dr. Kaplan also offered some mechanistic insight into why statins have an anticancer effect, pointing to “the centrality of cholesterol biosynthesis for development and/or progression of malignancy.”

The investigators and Dr. Kaplan reported no relevant conflicts of interest.

Statin use may significantly lower the risk of colorectal cancer (CRC) in patients with or without inflammatory bowel disease (IBD), based on a meta-analysis and systematic review.

In more than 15,000 patients with IBD, statin use was associated with a 60% reduced risk of CRC, reported lead author Kevin N. Singh, MD, of NYU Langone Medical Center in New York, and colleagues.

“Statin use has been linked with a risk reduction for cancers including hepatocellular carcinoma, breast, gastric, pancreatic, and biliary tract cancers, but data supporting the use of statins for chemoprevention against CRC is conflicting,” Dr. Singh said during a virtual presentation at the annual meeting of the American College of Gastroenterology.

He noted a 2014 meta-analysis by Lytras and colleagues that reported a 9% CRC risk reduction in statin users who did not have IBD. In patients with IBD, data are scarce, according to Dr. Singh.

To further explore the relationship between statin use and CRC in patients without IBD, the investigators analyzed data from 52 studies, including 8 randomized clinical trials, 17 cohort studies, and 27 case-control studies. Of the 11,459,306 patients involved, approximately 2 million used statins and roughly 9 million did not.

To evaluate the same relationship in patients with IBD, the investigators conducted a separate meta-analysis involving 15,342 patients from 5 observational studies, 1 of which was an unpublished abstract. In the 4 published studies, 1,161 patients used statins while 12,145 did not.

In the non-IBD population, statin use was associated with a 20% reduced risk of CRC (pooled odds ratio, 0.80; 95% confidence interval, 0.73-0.88; P less than .001). In patients with IBD, statin use was associated with a 60% CRC risk reduction (pooled OR, 0.40; 95% CI, 0.19-0.86, P = .019).

Dr. Singh noted “significant heterogeneity” in both analyses (I2 greater than 75), most prominently in the IBD populations, which he ascribed to “differences in demographic features, ethnic groups, and risk factors for CRC.”

While publication bias was absent from the non-IBD analysis, it was detected in the IBD portion of the study. Dr. Singh said that selection bias may also have been present in the IBD analysis, due to exclusive use of observational studies.

“Prospective trials are needed to confirm the risk reduction of CRC in the IBD population, including whether the effects of statins differ between ulcerative colitis and Crohn’s disease patients,” Dr. Singh said.

Additional analyses are underway, he added, including one that will account for the potentially confounding effect of aspirin use.

According to David E. Kaplan, MD, of the University of Pennsylvania, Philadelphia, “The finding that statins are associated with reduced CRC in IBD provides additional support for the clinical importance of the antineoplastic effects of statins. This effect has been strongly observed in liver cancer, and is pending prospective validation.”

Dr. Kaplan also offered some mechanistic insight into why statins have an anticancer effect, pointing to “the centrality of cholesterol biosynthesis for development and/or progression of malignancy.”

The investigators and Dr. Kaplan reported no relevant conflicts of interest.

Statin use may significantly lower the risk of colorectal cancer (CRC) in patients with or without inflammatory bowel disease (IBD), based on a meta-analysis and systematic review.

In more than 15,000 patients with IBD, statin use was associated with a 60% reduced risk of CRC, reported lead author Kevin N. Singh, MD, of NYU Langone Medical Center in New York, and colleagues.

“Statin use has been linked with a risk reduction for cancers including hepatocellular carcinoma, breast, gastric, pancreatic, and biliary tract cancers, but data supporting the use of statins for chemoprevention against CRC is conflicting,” Dr. Singh said during a virtual presentation at the annual meeting of the American College of Gastroenterology.

He noted a 2014 meta-analysis by Lytras and colleagues that reported a 9% CRC risk reduction in statin users who did not have IBD. In patients with IBD, data are scarce, according to Dr. Singh.

To further explore the relationship between statin use and CRC in patients without IBD, the investigators analyzed data from 52 studies, including 8 randomized clinical trials, 17 cohort studies, and 27 case-control studies. Of the 11,459,306 patients involved, approximately 2 million used statins and roughly 9 million did not.

To evaluate the same relationship in patients with IBD, the investigators conducted a separate meta-analysis involving 15,342 patients from 5 observational studies, 1 of which was an unpublished abstract. In the 4 published studies, 1,161 patients used statins while 12,145 did not.

In the non-IBD population, statin use was associated with a 20% reduced risk of CRC (pooled odds ratio, 0.80; 95% confidence interval, 0.73-0.88; P less than .001). In patients with IBD, statin use was associated with a 60% CRC risk reduction (pooled OR, 0.40; 95% CI, 0.19-0.86, P = .019).

Dr. Singh noted “significant heterogeneity” in both analyses (I2 greater than 75), most prominently in the IBD populations, which he ascribed to “differences in demographic features, ethnic groups, and risk factors for CRC.”

While publication bias was absent from the non-IBD analysis, it was detected in the IBD portion of the study. Dr. Singh said that selection bias may also have been present in the IBD analysis, due to exclusive use of observational studies.

“Prospective trials are needed to confirm the risk reduction of CRC in the IBD population, including whether the effects of statins differ between ulcerative colitis and Crohn’s disease patients,” Dr. Singh said.

Additional analyses are underway, he added, including one that will account for the potentially confounding effect of aspirin use.

According to David E. Kaplan, MD, of the University of Pennsylvania, Philadelphia, “The finding that statins are associated with reduced CRC in IBD provides additional support for the clinical importance of the antineoplastic effects of statins. This effect has been strongly observed in liver cancer, and is pending prospective validation.”

Dr. Kaplan also offered some mechanistic insight into why statins have an anticancer effect, pointing to “the centrality of cholesterol biosynthesis for development and/or progression of malignancy.”

The investigators and Dr. Kaplan reported no relevant conflicts of interest.

New guidelines recommend against retreatment with poly (ADP-ribose) polymerase (PARP) inhibitors in women with epithelial ovarian, tubal, or primary peritoneal cancer (EOC). However, trials investigating retreatment are underway, so this recommendation may change.

The guidelines, from the American Society of Clinical Oncology (ASCO), do not recommend PARP inhibitors for the initial treatment of stage I-II EOC.

However, PARP inhibitor maintenance should be offered to women with newly diagnosed stage III-IV EOC who achieved a complete or partial response with first-line platinum-based chemotherapy, according to the guidelines. Niraparib can be offered to all women meeting those criteria, while olaparib can be considered for patients with mutations in BRCA1/2.

The guidelines, published in the Journal of Clinical Oncology, are based on a systematic review of recent randomized PARP inhibitor trials, including PRIMA and SOLO1, among others.

What’s not available now is overall survival results from key clinical trials, the guideline authors noted. They added that further research is needed to address the issue of conserving platinum sensitivity in patients with disease progression on or after PARP inhibitor maintenance.

“Given the expectation that early treatment may confer the best outcome, maintenance therapy with PARP inhibitors should be offered, with these caveats,” the authors wrote.

Olaparib can also be added to bevacizumab maintenance therapy following response to first-line chemotherapy plus bevacizumab, according to the guidelines, which also address PARP inhibitor use for women with recurrent EOC, as well as management of adverse events.

The guidelines recommend against pairing PARP inhibitors with chemotherapy, targeted therapy, or immunotherapy outside a clinical trial.
 

Which drug, which setting, which dose?

This new ASCO guidelines may help cut through the complexity of treatment decision-making for women with EOC, according to Roisin E. O’Cearbhaill, MD, of Memorial Sloan Kettering Cancer Center in New York.

“Today as clinicians, we have a whole range of opportunities to give our patients PARP inhibitors in the upfront and recurrent setting,” Dr. O’Cearbhaill said in an interview. “It is quite complicated to know which PARP inhibitor should be used in which setting and which patients.”

“We want to make sure that patients who would derive the most benefit from PARP inhibitors are offered these agents but also that we’re careful not to use PARP inhibitors in settings where there is little or no data,” added Dr. O’Cearbhaill, who was not involved in the drafting of the guidelines.

The ASCO guidelines provide a detailed review of 17 clinical trials to address key issues, including the histologic types of EOC and biomarker subsets for which PARP inhibitors are recommended in the newly diagnosed setting, as well as the settings, dose, and duration of treatment that are recommended for patients with recurrent EOC who have not yet received a PARP inhibitor.

While PARP inhibitors are generally well tolerated, some characteristic toxicities – such as anemia, neutropenia, thrombocytopenia, persistent cytopenias, and nausea – may warrant dose reductions, the guidelines state.

Special attention must be paid to low-grade adverse events since PARP inhibitors are administered continuously on a daily basis, according to the guidelines. If a dose is held because of a grade 2 adverse event, the subsequent dose should be reduced to avoid a second dose hold.

“Reescalation or resumption of the initial dose is never recommended,” the guidelines state.
 

Retreatment

Dr. O’Cearbhaill said she is eager to see future guidelines addressing PARP inhibitor retreatment following disease progression, especially since more and more patients will receive these agents in the upfront setting.

Right now, there is little data available to address PARP inhibitor retreatment. However, the ASCO guidelines do mention the ongoing OReO/ENGOT OV-38 phase 3 trial of maintenance retreatment with olaparib in women with EOC.

This study, which includes patients who previously received a PARP inhibitor and who are responding to additional platinum-based chemotherapy, has an estimated completion date in May 2021, according to details on ClinicalTrials.gov.

That’s one of several trials designed to determine how best to incorporate PARP inhibitor retreatment into the treatment paradigm, according to Dr. O’Cearbhaill.

“Even if a high proportion of patients aren’t ultimately cured by this approach, if we can delay progression of disease by the order of months or even years, whilst proactively managing side effects, it would make such a big difference for patients,” she said. “It allows them to have a better quality of life and go about their daily activities without symptomatic ovarian cancer.”

Cochairs of the ASCO expert panel for the guidelines were William P. Tew, MD, of Memorial Sloan Kettering Cancer Center in New York, and Elise C. Kohn, MD, of the National Cancer Institute in Bethesda, Md. Dr. Tew and Dr. Kohn provided no disclosures, while their coauthors reported disclosures related to Roche, AstraZeneca, Tesaro, Clovis Oncology, Merck, Seattle Genetics, and other companies. Dr. O’Cearbhaill disclosed that she is a coauthor on the PRIMA/ENGOT-OV26/GOG-3012 phase 3 clinical trial (NCT02655016) and serves on the steering committee for DUO-O (NCT0373643). She reported personal fees from Clovis, Tesaro, Regeneron, and GlaxoSmithKline.

SOURCE: Tew WP et al. J Clin Oncol. 2020 Aug 13. doi: 10.1200/JCO.20.01924.

New guidelines recommend against retreatment with poly (ADP-ribose) polymerase (PARP) inhibitors in women with epithelial ovarian, tubal, or primary peritoneal cancer (EOC). However, trials investigating retreatment are underway, so this recommendation may change.

The guidelines, from the American Society of Clinical Oncology (ASCO), do not recommend PARP inhibitors for the initial treatment of stage I-II EOC.

However, PARP inhibitor maintenance should be offered to women with newly diagnosed stage III-IV EOC who achieved a complete or partial response with first-line platinum-based chemotherapy, according to the guidelines. Niraparib can be offered to all women meeting those criteria, while olaparib can be considered for patients with mutations in BRCA1/2.

The guidelines, published in the Journal of Clinical Oncology, are based on a systematic review of recent randomized PARP inhibitor trials, including PRIMA and SOLO1, among others.

What’s not available now is overall survival results from key clinical trials, the guideline authors noted. They added that further research is needed to address the issue of conserving platinum sensitivity in patients with disease progression on or after PARP inhibitor maintenance.

“Given the expectation that early treatment may confer the best outcome, maintenance therapy with PARP inhibitors should be offered, with these caveats,” the authors wrote.

Olaparib can also be added to bevacizumab maintenance therapy following response to first-line chemotherapy plus bevacizumab, according to the guidelines, which also address PARP inhibitor use for women with recurrent EOC, as well as management of adverse events.

The guidelines recommend against pairing PARP inhibitors with chemotherapy, targeted therapy, or immunotherapy outside a clinical trial.
 

Which drug, which setting, which dose?

This new ASCO guidelines may help cut through the complexity of treatment decision-making for women with EOC, according to Roisin E. O’Cearbhaill, MD, of Memorial Sloan Kettering Cancer Center in New York.

“Today as clinicians, we have a whole range of opportunities to give our patients PARP inhibitors in the upfront and recurrent setting,” Dr. O’Cearbhaill said in an interview. “It is quite complicated to know which PARP inhibitor should be used in which setting and which patients.”

“We want to make sure that patients who would derive the most benefit from PARP inhibitors are offered these agents but also that we’re careful not to use PARP inhibitors in settings where there is little or no data,” added Dr. O’Cearbhaill, who was not involved in the drafting of the guidelines.

The ASCO guidelines provide a detailed review of 17 clinical trials to address key issues, including the histologic types of EOC and biomarker subsets for which PARP inhibitors are recommended in the newly diagnosed setting, as well as the settings, dose, and duration of treatment that are recommended for patients with recurrent EOC who have not yet received a PARP inhibitor.

While PARP inhibitors are generally well tolerated, some characteristic toxicities – such as anemia, neutropenia, thrombocytopenia, persistent cytopenias, and nausea – may warrant dose reductions, the guidelines state.

Special attention must be paid to low-grade adverse events since PARP inhibitors are administered continuously on a daily basis, according to the guidelines. If a dose is held because of a grade 2 adverse event, the subsequent dose should be reduced to avoid a second dose hold.

“Reescalation or resumption of the initial dose is never recommended,” the guidelines state.
 

Retreatment

Dr. O’Cearbhaill said she is eager to see future guidelines addressing PARP inhibitor retreatment following disease progression, especially since more and more patients will receive these agents in the upfront setting.

Right now, there is little data available to address PARP inhibitor retreatment. However, the ASCO guidelines do mention the ongoing OReO/ENGOT OV-38 phase 3 trial of maintenance retreatment with olaparib in women with EOC.

This study, which includes patients who previously received a PARP inhibitor and who are responding to additional platinum-based chemotherapy, has an estimated completion date in May 2021, according to details on ClinicalTrials.gov.

That’s one of several trials designed to determine how best to incorporate PARP inhibitor retreatment into the treatment paradigm, according to Dr. O’Cearbhaill.

“Even if a high proportion of patients aren’t ultimately cured by this approach, if we can delay progression of disease by the order of months or even years, whilst proactively managing side effects, it would make such a big difference for patients,” she said. “It allows them to have a better quality of life and go about their daily activities without symptomatic ovarian cancer.”

Cochairs of the ASCO expert panel for the guidelines were William P. Tew, MD, of Memorial Sloan Kettering Cancer Center in New York, and Elise C. Kohn, MD, of the National Cancer Institute in Bethesda, Md. Dr. Tew and Dr. Kohn provided no disclosures, while their coauthors reported disclosures related to Roche, AstraZeneca, Tesaro, Clovis Oncology, Merck, Seattle Genetics, and other companies. Dr. O’Cearbhaill disclosed that she is a coauthor on the PRIMA/ENGOT-OV26/GOG-3012 phase 3 clinical trial (NCT02655016) and serves on the steering committee for DUO-O (NCT0373643). She reported personal fees from Clovis, Tesaro, Regeneron, and GlaxoSmithKline.

SOURCE: Tew WP et al. J Clin Oncol. 2020 Aug 13. doi: 10.1200/JCO.20.01924.

New guidelines recommend against retreatment with poly (ADP-ribose) polymerase (PARP) inhibitors in women with epithelial ovarian, tubal, or primary peritoneal cancer (EOC). However, trials investigating retreatment are underway, so this recommendation may change.

The guidelines, from the American Society of Clinical Oncology (ASCO), do not recommend PARP inhibitors for the initial treatment of stage I-II EOC.

However, PARP inhibitor maintenance should be offered to women with newly diagnosed stage III-IV EOC who achieved a complete or partial response with first-line platinum-based chemotherapy, according to the guidelines. Niraparib can be offered to all women meeting those criteria, while olaparib can be considered for patients with mutations in BRCA1/2.

The guidelines, published in the Journal of Clinical Oncology, are based on a systematic review of recent randomized PARP inhibitor trials, including PRIMA and SOLO1, among others.

What’s not available now is overall survival results from key clinical trials, the guideline authors noted. They added that further research is needed to address the issue of conserving platinum sensitivity in patients with disease progression on or after PARP inhibitor maintenance.

“Given the expectation that early treatment may confer the best outcome, maintenance therapy with PARP inhibitors should be offered, with these caveats,” the authors wrote.

Olaparib can also be added to bevacizumab maintenance therapy following response to first-line chemotherapy plus bevacizumab, according to the guidelines, which also address PARP inhibitor use for women with recurrent EOC, as well as management of adverse events.

The guidelines recommend against pairing PARP inhibitors with chemotherapy, targeted therapy, or immunotherapy outside a clinical trial.
 

Which drug, which setting, which dose?

This new ASCO guidelines may help cut through the complexity of treatment decision-making for women with EOC, according to Roisin E. O’Cearbhaill, MD, of Memorial Sloan Kettering Cancer Center in New York.

“Today as clinicians, we have a whole range of opportunities to give our patients PARP inhibitors in the upfront and recurrent setting,” Dr. O’Cearbhaill said in an interview. “It is quite complicated to know which PARP inhibitor should be used in which setting and which patients.”

“We want to make sure that patients who would derive the most benefit from PARP inhibitors are offered these agents but also that we’re careful not to use PARP inhibitors in settings where there is little or no data,” added Dr. O’Cearbhaill, who was not involved in the drafting of the guidelines.

The ASCO guidelines provide a detailed review of 17 clinical trials to address key issues, including the histologic types of EOC and biomarker subsets for which PARP inhibitors are recommended in the newly diagnosed setting, as well as the settings, dose, and duration of treatment that are recommended for patients with recurrent EOC who have not yet received a PARP inhibitor.

While PARP inhibitors are generally well tolerated, some characteristic toxicities – such as anemia, neutropenia, thrombocytopenia, persistent cytopenias, and nausea – may warrant dose reductions, the guidelines state.

Special attention must be paid to low-grade adverse events since PARP inhibitors are administered continuously on a daily basis, according to the guidelines. If a dose is held because of a grade 2 adverse event, the subsequent dose should be reduced to avoid a second dose hold.

“Reescalation or resumption of the initial dose is never recommended,” the guidelines state.
 

Retreatment

Dr. O’Cearbhaill said she is eager to see future guidelines addressing PARP inhibitor retreatment following disease progression, especially since more and more patients will receive these agents in the upfront setting.

Right now, there is little data available to address PARP inhibitor retreatment. However, the ASCO guidelines do mention the ongoing OReO/ENGOT OV-38 phase 3 trial of maintenance retreatment with olaparib in women with EOC.

This study, which includes patients who previously received a PARP inhibitor and who are responding to additional platinum-based chemotherapy, has an estimated completion date in May 2021, according to details on ClinicalTrials.gov.

That’s one of several trials designed to determine how best to incorporate PARP inhibitor retreatment into the treatment paradigm, according to Dr. O’Cearbhaill.

“Even if a high proportion of patients aren’t ultimately cured by this approach, if we can delay progression of disease by the order of months or even years, whilst proactively managing side effects, it would make such a big difference for patients,” she said. “It allows them to have a better quality of life and go about their daily activities without symptomatic ovarian cancer.”

Cochairs of the ASCO expert panel for the guidelines were William P. Tew, MD, of Memorial Sloan Kettering Cancer Center in New York, and Elise C. Kohn, MD, of the National Cancer Institute in Bethesda, Md. Dr. Tew and Dr. Kohn provided no disclosures, while their coauthors reported disclosures related to Roche, AstraZeneca, Tesaro, Clovis Oncology, Merck, Seattle Genetics, and other companies. Dr. O’Cearbhaill disclosed that she is a coauthor on the PRIMA/ENGOT-OV26/GOG-3012 phase 3 clinical trial (NCT02655016) and serves on the steering committee for DUO-O (NCT0373643). She reported personal fees from Clovis, Tesaro, Regeneron, and GlaxoSmithKline.

SOURCE: Tew WP et al. J Clin Oncol. 2020 Aug 13. doi: 10.1200/JCO.20.01924.

Novel therapies are poised to dramatically change frontline therapy for acute myeloid leukemia (AML), and they have the potential to replace chemotherapy, a hematologist/oncologist told colleagues at the virtual Acute Leukemia Forum of Hemedicus.

But more work needs to be done, noted Alexander Perl, MD, MS, associate professor at the University of Pennsylvania, Philadelphia. While advances have transformed AML treatment in the relapsed/refractory setting, “we’re just not seeing that substantive improvement” for newly diagnosed patients, he said. “We need to find the disease-modifying drugs that work in the relapsed/refractory setting and move those frontline. That’s where we’re going to see the transformations.”

Research suggests that low-intensity therapy holds tremendous promise, he said, “with the idea that we could make therapy much more tolerable for the vast majority of patients affected by AML, who, as we know, are older patients.”

Dr. Perl highlighted the 2020 VIALE-A study – venetoclax/azacitidine versus azacitidine/placebo – which reported that “in previously untreated patients who were ineligible for intensive chemotherapy, overall survival was longer and the incidence of remission was higher among patients who received azacitidine plus venetoclax than among those who received azacitidine alone.”

Venetoclax promotes apoptosis in leukemia cells, Dr. Perl said. “To a certain extent, you can think of it as putting the rubber to the road in terms of what actually chemotherapy is designed to do, which is to make leukemic blasts apoptose. It does so without DNA damage and with much less toxicity to the patient. Therefore it can be added to any number of regimens – granted, with mild suppression, but with relatively little extramedullary toxicity.”

Dr. Perl noted that the venetoclax arm “showed a higher response rate than azacitidine in pretty much every subgroup that was looked at, whether patients had de novo leukemia, secondary leukemia, multiple mutational complements, various different karyotypes. The response rates on this study are as high as what we often will see with intensive chemotherapy.” He added that “the winning arm on this trial seems to hold up against any low-intensity therapy, and I would argue against many high-intensity therapies in older patients.”

As for other targeted agents, isocitrate dehydrogenase (IDH) inhibitors “are very promising drugs in the relapsed/refractory setting, which is primarily where these drugs are given. In regard to frontline treatment, “data are coming from a very small study, but they’re very encouraging. It’s hard to entirely say that we’re ready to change practice based on this. But it’s very encouraging – the idea that earlier use of a drug-targeting IDH mutation might lead to substantially better outcomes.”

Moving forward, he said, “we could put all of our eggs in one basket and use many active drugs [at] front line. Or we can perhaps be smart about sequencing these drugs one after another, or using more intensive approaches followed by maintenance approaches followed by more intensive approaches.”

This approach is similar to strategies in myeloma patients “who less and less are relying on an autologous transplant for durable control of their disease, and more and more are using low-intensity biologically targeted drugs,” he said.

The Acute Leukemia Forum is held by Hemedicus, which is owned by the same company as this news organization.

Dr. Perl reported numerous disclosures, including relationships with Daiichi Sankyo, Abbvie, and Astellas.

Novel therapies are poised to dramatically change frontline therapy for acute myeloid leukemia (AML), and they have the potential to replace chemotherapy, a hematologist/oncologist told colleagues at the virtual Acute Leukemia Forum of Hemedicus.

But more work needs to be done, noted Alexander Perl, MD, MS, associate professor at the University of Pennsylvania, Philadelphia. While advances have transformed AML treatment in the relapsed/refractory setting, “we’re just not seeing that substantive improvement” for newly diagnosed patients, he said. “We need to find the disease-modifying drugs that work in the relapsed/refractory setting and move those frontline. That’s where we’re going to see the transformations.”

Research suggests that low-intensity therapy holds tremendous promise, he said, “with the idea that we could make therapy much more tolerable for the vast majority of patients affected by AML, who, as we know, are older patients.”

Dr. Perl highlighted the 2020 VIALE-A study – venetoclax/azacitidine versus azacitidine/placebo – which reported that “in previously untreated patients who were ineligible for intensive chemotherapy, overall survival was longer and the incidence of remission was higher among patients who received azacitidine plus venetoclax than among those who received azacitidine alone.”

Venetoclax promotes apoptosis in leukemia cells, Dr. Perl said. “To a certain extent, you can think of it as putting the rubber to the road in terms of what actually chemotherapy is designed to do, which is to make leukemic blasts apoptose. It does so without DNA damage and with much less toxicity to the patient. Therefore it can be added to any number of regimens – granted, with mild suppression, but with relatively little extramedullary toxicity.”

Dr. Perl noted that the venetoclax arm “showed a higher response rate than azacitidine in pretty much every subgroup that was looked at, whether patients had de novo leukemia, secondary leukemia, multiple mutational complements, various different karyotypes. The response rates on this study are as high as what we often will see with intensive chemotherapy.” He added that “the winning arm on this trial seems to hold up against any low-intensity therapy, and I would argue against many high-intensity therapies in older patients.”

As for other targeted agents, isocitrate dehydrogenase (IDH) inhibitors “are very promising drugs in the relapsed/refractory setting, which is primarily where these drugs are given. In regard to frontline treatment, “data are coming from a very small study, but they’re very encouraging. It’s hard to entirely say that we’re ready to change practice based on this. But it’s very encouraging – the idea that earlier use of a drug-targeting IDH mutation might lead to substantially better outcomes.”

Moving forward, he said, “we could put all of our eggs in one basket and use many active drugs [at] front line. Or we can perhaps be smart about sequencing these drugs one after another, or using more intensive approaches followed by maintenance approaches followed by more intensive approaches.”

This approach is similar to strategies in myeloma patients “who less and less are relying on an autologous transplant for durable control of their disease, and more and more are using low-intensity biologically targeted drugs,” he said.

The Acute Leukemia Forum is held by Hemedicus, which is owned by the same company as this news organization.

Dr. Perl reported numerous disclosures, including relationships with Daiichi Sankyo, Abbvie, and Astellas.

Novel therapies are poised to dramatically change frontline therapy for acute myeloid leukemia (AML), and they have the potential to replace chemotherapy, a hematologist/oncologist told colleagues at the virtual Acute Leukemia Forum of Hemedicus.

But more work needs to be done, noted Alexander Perl, MD, MS, associate professor at the University of Pennsylvania, Philadelphia. While advances have transformed AML treatment in the relapsed/refractory setting, “we’re just not seeing that substantive improvement” for newly diagnosed patients, he said. “We need to find the disease-modifying drugs that work in the relapsed/refractory setting and move those frontline. That’s where we’re going to see the transformations.”

Research suggests that low-intensity therapy holds tremendous promise, he said, “with the idea that we could make therapy much more tolerable for the vast majority of patients affected by AML, who, as we know, are older patients.”

Dr. Perl highlighted the 2020 VIALE-A study – venetoclax/azacitidine versus azacitidine/placebo – which reported that “in previously untreated patients who were ineligible for intensive chemotherapy, overall survival was longer and the incidence of remission was higher among patients who received azacitidine plus venetoclax than among those who received azacitidine alone.”

Venetoclax promotes apoptosis in leukemia cells, Dr. Perl said. “To a certain extent, you can think of it as putting the rubber to the road in terms of what actually chemotherapy is designed to do, which is to make leukemic blasts apoptose. It does so without DNA damage and with much less toxicity to the patient. Therefore it can be added to any number of regimens – granted, with mild suppression, but with relatively little extramedullary toxicity.”

Dr. Perl noted that the venetoclax arm “showed a higher response rate than azacitidine in pretty much every subgroup that was looked at, whether patients had de novo leukemia, secondary leukemia, multiple mutational complements, various different karyotypes. The response rates on this study are as high as what we often will see with intensive chemotherapy.” He added that “the winning arm on this trial seems to hold up against any low-intensity therapy, and I would argue against many high-intensity therapies in older patients.”

As for other targeted agents, isocitrate dehydrogenase (IDH) inhibitors “are very promising drugs in the relapsed/refractory setting, which is primarily where these drugs are given. In regard to frontline treatment, “data are coming from a very small study, but they’re very encouraging. It’s hard to entirely say that we’re ready to change practice based on this. But it’s very encouraging – the idea that earlier use of a drug-targeting IDH mutation might lead to substantially better outcomes.”

Moving forward, he said, “we could put all of our eggs in one basket and use many active drugs [at] front line. Or we can perhaps be smart about sequencing these drugs one after another, or using more intensive approaches followed by maintenance approaches followed by more intensive approaches.”

This approach is similar to strategies in myeloma patients “who less and less are relying on an autologous transplant for durable control of their disease, and more and more are using low-intensity biologically targeted drugs,” he said.

The Acute Leukemia Forum is held by Hemedicus, which is owned by the same company as this news organization.

Dr. Perl reported numerous disclosures, including relationships with Daiichi Sankyo, Abbvie, and Astellas.

Screening for colorectal cancer (CRC) should begin at age 45 years instead of 50 years, as recommended in the current guideline, the US Preventive Services Task Force (USPSTF) said in a draft recommendation that is open for public comment.

“This is the only change that was made,” said task force member Michael Barry, MD, director of the Informed Medical Decisions Program in the Health Decision Sciences Center at Massachusetts General Hospital, Boston.

The recommendation is that all adults aged 45-75 years be screened for CRC.

This is an “A” recommendation for adults aged 50-75 and a “B” recommendation for adults aged 45-49. Dr. Barry explained that the reason for this difference is that the benefit is smaller for the 45- to 49-years age group. “But there’s not much difference between A and B from a practical standpoint,” he explained.

For adults aged 76-85, the benefits and harms of screening need to be weighed against the individual’s overall health and personal circumstances. This is a “C” recommendation.

Barry emphasized that the USPSTF document is not final. The draft recommendation and supporting evidence is posted on the task force website and will be available for public comments until Nov. 23.
 

Mounting pressure

The move comes after mounting evidence of an increase in CRC among younger adults and mounting pressure to lower the starting age.

Two years ago, the American Cancer Society (ACS) revised its own screening guidelines and lowered the starting age to 45 years. Soon afterward, a coalition of 22 public health and patient advocacy groups joined the ACS in submitting a letter to the USPSTF asking that the task force reconsider its 2016 guidance (which recommends starting at age 50 years).

The starting age for screening is an important issue, commented Judy Yee, MD, chair of radiology at the Albert Einstein College of Medicine and the Montefiore Health System in New York and chair of the Colon Cancer Committee of the American College of Radiology.

“Right now it is very confusing to physicians and to the public,” Dr. Yee said in an interview at that time. “The USPSTF and the ACS differ as far as the age to begin screening, and insurers may not cover the cost of colorectal cancer screening before age 50.”

Dr. Barry said that the Task Force took notice of recent data showing an increase in the incidence of CRC among younger adults. “The risk now for age 45 to 49 is pretty similar to the risk for people in their early 50s. So in some ways, today’s late 40-year-olds are like yesterday’s 50-year-olds,” he commented.

The task force used simulation models that confirmed what the epidemiologic data suggested and “that we could prevent some additional colorectal cancer deaths by starting screening at age 45,” he said.

The rest of the new draft recommendation is similar to the 2016 guidelines, in which the task force says there is convincing evidence that CRC screening substantially reduces disease-related mortality. However, it does not recommend any one screening approach over another. It recommends both direct visualization, such as colonoscopy, as well as noninvasive stool-based tests. It does not recommend serum tests, urine tests, or capsule endoscopy because there is not yet enough evidence about the benefits and harms of these tests.

“The right test is the one a patient will do,” Dr. Barry commented.

Defining populations

CRC in young adults made the news in August 2020 when Chadwick Boseman, known for his role as King T’Challa in Marvel’s “Black Panther,” died of colon cancer. Diagnosed in 2016, he was only 43 years old.

“The recent passing of Chadwick Boseman is tragic, and our thoughts are with his loved ones during this difficult time,” said Dr. Barry. “As a Black man, the data show that Chadwick was at higher risk for developing colorectal cancer.”

Unfortunately, there is currently not enough evidence that screening Black men younger than 45 could help prevent tragic deaths such as Chadwick’s, he commented. “The task force is calling for more research on colorectal cancer screening in Black adults,” he added.
 

Limit screening to those at higher risk

In contrast to the USPSTF and ACS guidelines, which recommend screening for CRC for everyone over a certain age, a set of recommendations developed by an international panel of experts suggests screening only for individuals who are at higher risk for CRC.

As previously reported, these guidelines suggest restricting screening to adults whose cumulative cancer risk is 3% or more in the next 15 years, the point at which the balance between benefits and harms favors screening.

The authors, led by Lise Helsingen, MD, Clinical Effectiveness Research Group, University of Oslo, said “the optimal choice for each person requires shared decision-making.”

Such a risk-based approach is “increasingly regarded as the most appropriate way to discuss cancer screening.” That approach is already used in prostate and lung cancer screening, they noted.
 

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

Screening for colorectal cancer (CRC) should begin at age 45 years instead of 50 years, as recommended in the current guideline, the US Preventive Services Task Force (USPSTF) said in a draft recommendation that is open for public comment.

“This is the only change that was made,” said task force member Michael Barry, MD, director of the Informed Medical Decisions Program in the Health Decision Sciences Center at Massachusetts General Hospital, Boston.

The recommendation is that all adults aged 45-75 years be screened for CRC.

This is an “A” recommendation for adults aged 50-75 and a “B” recommendation for adults aged 45-49. Dr. Barry explained that the reason for this difference is that the benefit is smaller for the 45- to 49-years age group. “But there’s not much difference between A and B from a practical standpoint,” he explained.

For adults aged 76-85, the benefits and harms of screening need to be weighed against the individual’s overall health and personal circumstances. This is a “C” recommendation.

Barry emphasized that the USPSTF document is not final. The draft recommendation and supporting evidence is posted on the task force website and will be available for public comments until Nov. 23.
 

Mounting pressure

The move comes after mounting evidence of an increase in CRC among younger adults and mounting pressure to lower the starting age.

Two years ago, the American Cancer Society (ACS) revised its own screening guidelines and lowered the starting age to 45 years. Soon afterward, a coalition of 22 public health and patient advocacy groups joined the ACS in submitting a letter to the USPSTF asking that the task force reconsider its 2016 guidance (which recommends starting at age 50 years).

The starting age for screening is an important issue, commented Judy Yee, MD, chair of radiology at the Albert Einstein College of Medicine and the Montefiore Health System in New York and chair of the Colon Cancer Committee of the American College of Radiology.

“Right now it is very confusing to physicians and to the public,” Dr. Yee said in an interview at that time. “The USPSTF and the ACS differ as far as the age to begin screening, and insurers may not cover the cost of colorectal cancer screening before age 50.”

Dr. Barry said that the Task Force took notice of recent data showing an increase in the incidence of CRC among younger adults. “The risk now for age 45 to 49 is pretty similar to the risk for people in their early 50s. So in some ways, today’s late 40-year-olds are like yesterday’s 50-year-olds,” he commented.

The task force used simulation models that confirmed what the epidemiologic data suggested and “that we could prevent some additional colorectal cancer deaths by starting screening at age 45,” he said.

The rest of the new draft recommendation is similar to the 2016 guidelines, in which the task force says there is convincing evidence that CRC screening substantially reduces disease-related mortality. However, it does not recommend any one screening approach over another. It recommends both direct visualization, such as colonoscopy, as well as noninvasive stool-based tests. It does not recommend serum tests, urine tests, or capsule endoscopy because there is not yet enough evidence about the benefits and harms of these tests.

“The right test is the one a patient will do,” Dr. Barry commented.

Defining populations

CRC in young adults made the news in August 2020 when Chadwick Boseman, known for his role as King T’Challa in Marvel’s “Black Panther,” died of colon cancer. Diagnosed in 2016, he was only 43 years old.

“The recent passing of Chadwick Boseman is tragic, and our thoughts are with his loved ones during this difficult time,” said Dr. Barry. “As a Black man, the data show that Chadwick was at higher risk for developing colorectal cancer.”

Unfortunately, there is currently not enough evidence that screening Black men younger than 45 could help prevent tragic deaths such as Chadwick’s, he commented. “The task force is calling for more research on colorectal cancer screening in Black adults,” he added.
 

Limit screening to those at higher risk

In contrast to the USPSTF and ACS guidelines, which recommend screening for CRC for everyone over a certain age, a set of recommendations developed by an international panel of experts suggests screening only for individuals who are at higher risk for CRC.

As previously reported, these guidelines suggest restricting screening to adults whose cumulative cancer risk is 3% or more in the next 15 years, the point at which the balance between benefits and harms favors screening.

The authors, led by Lise Helsingen, MD, Clinical Effectiveness Research Group, University of Oslo, said “the optimal choice for each person requires shared decision-making.”

Such a risk-based approach is “increasingly regarded as the most appropriate way to discuss cancer screening.” That approach is already used in prostate and lung cancer screening, they noted.
 

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

Screening for colorectal cancer (CRC) should begin at age 45 years instead of 50 years, as recommended in the current guideline, the US Preventive Services Task Force (USPSTF) said in a draft recommendation that is open for public comment.

“This is the only change that was made,” said task force member Michael Barry, MD, director of the Informed Medical Decisions Program in the Health Decision Sciences Center at Massachusetts General Hospital, Boston.

The recommendation is that all adults aged 45-75 years be screened for CRC.

This is an “A” recommendation for adults aged 50-75 and a “B” recommendation for adults aged 45-49. Dr. Barry explained that the reason for this difference is that the benefit is smaller for the 45- to 49-years age group. “But there’s not much difference between A and B from a practical standpoint,” he explained.

For adults aged 76-85, the benefits and harms of screening need to be weighed against the individual’s overall health and personal circumstances. This is a “C” recommendation.

Barry emphasized that the USPSTF document is not final. The draft recommendation and supporting evidence is posted on the task force website and will be available for public comments until Nov. 23.
 

Mounting pressure

The move comes after mounting evidence of an increase in CRC among younger adults and mounting pressure to lower the starting age.

Two years ago, the American Cancer Society (ACS) revised its own screening guidelines and lowered the starting age to 45 years. Soon afterward, a coalition of 22 public health and patient advocacy groups joined the ACS in submitting a letter to the USPSTF asking that the task force reconsider its 2016 guidance (which recommends starting at age 50 years).

The starting age for screening is an important issue, commented Judy Yee, MD, chair of radiology at the Albert Einstein College of Medicine and the Montefiore Health System in New York and chair of the Colon Cancer Committee of the American College of Radiology.

“Right now it is very confusing to physicians and to the public,” Dr. Yee said in an interview at that time. “The USPSTF and the ACS differ as far as the age to begin screening, and insurers may not cover the cost of colorectal cancer screening before age 50.”

Dr. Barry said that the Task Force took notice of recent data showing an increase in the incidence of CRC among younger adults. “The risk now for age 45 to 49 is pretty similar to the risk for people in their early 50s. So in some ways, today’s late 40-year-olds are like yesterday’s 50-year-olds,” he commented.

The task force used simulation models that confirmed what the epidemiologic data suggested and “that we could prevent some additional colorectal cancer deaths by starting screening at age 45,” he said.

The rest of the new draft recommendation is similar to the 2016 guidelines, in which the task force says there is convincing evidence that CRC screening substantially reduces disease-related mortality. However, it does not recommend any one screening approach over another. It recommends both direct visualization, such as colonoscopy, as well as noninvasive stool-based tests. It does not recommend serum tests, urine tests, or capsule endoscopy because there is not yet enough evidence about the benefits and harms of these tests.

“The right test is the one a patient will do,” Dr. Barry commented.

Defining populations

CRC in young adults made the news in August 2020 when Chadwick Boseman, known for his role as King T’Challa in Marvel’s “Black Panther,” died of colon cancer. Diagnosed in 2016, he was only 43 years old.

“The recent passing of Chadwick Boseman is tragic, and our thoughts are with his loved ones during this difficult time,” said Dr. Barry. “As a Black man, the data show that Chadwick was at higher risk for developing colorectal cancer.”

Unfortunately, there is currently not enough evidence that screening Black men younger than 45 could help prevent tragic deaths such as Chadwick’s, he commented. “The task force is calling for more research on colorectal cancer screening in Black adults,” he added.
 

Limit screening to those at higher risk

In contrast to the USPSTF and ACS guidelines, which recommend screening for CRC for everyone over a certain age, a set of recommendations developed by an international panel of experts suggests screening only for individuals who are at higher risk for CRC.

As previously reported, these guidelines suggest restricting screening to adults whose cumulative cancer risk is 3% or more in the next 15 years, the point at which the balance between benefits and harms favors screening.

The authors, led by Lise Helsingen, MD, Clinical Effectiveness Research Group, University of Oslo, said “the optimal choice for each person requires shared decision-making.”

Such a risk-based approach is “increasingly regarded as the most appropriate way to discuss cancer screening.” That approach is already used in prostate and lung cancer screening, they noted.
 

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

A national effort to perform genotype drug matching across cancer types shows the value of next-generation sequencing and provides a roadmap for future precision oncology trials, according to experts.

Massachusetts General Hospital

The effort is the National Cancer Institute Molecular Analysis for Therapy Choice (NCI-MATCH) trial. For this study, researchers performed next-generation sequencing on tumor biopsy specimens to identify therapeutically actionable molecular alterations in patients with “underexplored” cancer types.

The trial included 5,954 patients with cancers that had progressed on standard treatments or rare cancers for which there is no standard treatment. If actionable alterations were found in these patients, they could receive new drugs in development that showed promise in other clinical trials or drugs that were approved by the Food and Drug Administration to treat at least one cancer type.

Data newly reported in the Journal of Clinical Oncology showed that 37.6% of patients had alterations that could be matched to targeted drugs, and 17.8% of patients were assigned to targeted treatment. Multiple actionable tumor mutations were seen in 11.9% of specimens, and resistance-conferring mutations were seen in 71.3% of specimens.

“The bottom line from this report is that next-generation sequencing is an efficient way to identify both approved and promising investigational therapies. For this reason, it should be considered standard of care for patients with advanced cancers,” said study chair Keith T. Flaherty, MD, director of the Henri and Belinda Termeer Center for Targeted Therapy at Massachusetts General Hospital Cancer Center in Boston.

“This study sets the benchmark for the ‘actionability’ of next-generation sequencing,” Dr. Flaherty added. “We expect this number [of actionable alterations] will continue to rise steadily as further advances are made in the development of therapies that target some of the genetic alterations for which we could not offer treatment options in NCI-MATCH.”
 

Relapsed/refractory vs. primary tumors

The NCI-MATCH researchers focused on the most commonly found genetic alterations and performed biopsies at study entry to provide the most accurate picture of the genetic landscape of relapsed/refractory cancer patients. That makes this cohort distinct from The Cancer Genome Atlas (TCGA), a database of patients with mostly untreated primary tumors, and other published cohorts that include genetic analysis of primary tumors and biopsies from the time of initial metastatic recurrence.

The researchers compared the tumor gene makeup of NCI-MATCH and TCGA patients with seven cancer types – breast, bile duct, cervix, colorectal, lung, pancreas, and prostate.

ECOG-ACRIN Cancer Research Group

“Perhaps the biggest surprise was the relatively minimal change in the genetic alterations found in these relapsed/refractory patients, compared to primary tumors,” Dr. Flaherty said. “These findings suggest that it is very reasonable to perform next-generation sequencing at the time of initial metastatic cancer diagnosis and to rely on those findings for the purposes of considering FDA-approved therapies and clinical trial participation.”
 

Multiple alterations and resistance

The complex genetics of cancers has led researchers to explore combinations of targeted and other therapies to address multiple defects at the same time.

“Not surprisingly, the most common collision of multiple genetic alterations within the same tumor was in the commonly altered tumor suppressor genes: TP53, APC, and PTEN,” Dr. Flaherty said.

“An increasing body of evidence supports a role for loss-of-function alterations in these genes to confer resistance to many targeted therapies,” he added. “While we don’t have targeted therapies yet established to directly counter this form of therapeutic resistance, we hypothesize that various types of combination therapy may be able to indirectly undercut resistance and enhance the benefit of many targeted therapies.”

The NCI-MATCH researchers will continue to mine this large dataset to better understand the many small, genetically defined cancer subpopulations.

“We will continue to report the outcome of the individual treatment subprotocols, and combining this genetic analysis with those outcomes will likely inform the next clinical trials,” Dr. Flaherty said.
 

Actionable mutations make a difference

Precision oncology experts agree that NCI-MATCH results are impressive and add a fuller appreciation that actionable mutations make a clinical difference.

“This is a powerful, extremely well-designed study, a tour de force of collaborative science,” said Stephen Gruber, MD, PhD, director of the Center for Precision Medicine at City of Hope National Medical Center in Duarte, Calif.

“The future holds even more promise,” he added. “Our ability to interrogate the genomic landscape of cancer is improving rapidly. Tumor testing helps get the right drug to the right tumor faster than a guidelines-based approach from historical data of combination chemotherapy. This is a likely game changer for the way oncologists will practice in the future, especially as we learn more results of subset trials. The NCI-MATCH researchers have taken a laser-focused look at the current data, but we now know we can look far more comprehensively at genomic profiles of tumors.”

From the viewpoint of the practicing oncologist, co-occurring resistance mutations make a difference in defining what combinations are likely and, more importantly, less likely to be effective. “When we see two mutations and one is likely to confer resistance, we can make a choice to avoid a drug that is not likely to work,” Dr. Gruber said.

“The NCI-MATCH trial allows both approved and investigational agents, which expands the possibility of matching patients to newer agents. This is especially relevant if there are no FDA-approved drugs yet for some molecular aberrations,” said Lillian L. Siu, MD, a senior medical oncologist at the Princess Margaret Cancer Centre in Toronto. “This trial enables such evaluations under the auspice of a clinical trial to provide important knowledge.”

Both experts agree that in-depth biological interrogations of cancer will move the field of precision oncology forward. Dr. Gruber said that “studies have not yet fully addressed the power of germline genetic testing of DNA. Inherited susceptibility will drive therapeutic choices – for example, PARP inhibitors that access homologous recombination deficiency for breast, ovarian, and prostate cancer. We will learn more about treatment choices for those cancers.”

Dr. Siu added: “I truly believe that liquid biopsies [circulating tumor DNA] will help us perform target-drug matching in a less invasive way. We need to explore beyond the genome to look at the transcriptome, proteome, epigenome, and immunome, among others. It is likely that multiomic predictors are going to be able to identify more therapeutic options compared to single genomic predictors.”

Dr. Flaherty noted that all tumor samples from patients assigned to treatment are being subjected to whole-exome sequencing to further the discovery of the genetic features of responsive and nonresponsive tumors.

NCI-MATCH was funded by the National Cancer Institute. Dr. Flaherty disclosed relationships with Clovis Oncology, Loxo, X4 Pharma, and many other companies. His coauthors disclosed many conflicts as well. Dr. Gruber is cofounder of Brogent International. Dr. Siu disclosed relationships with Agios, Treadwell Therapeutics, Merck, Pfizer, and many other companies.

SOURCE: Flaherty KT et al. J Clin Oncol. 2020 Oct 13. doi: 10.1200/JCO.19.03010.

A national effort to perform genotype drug matching across cancer types shows the value of next-generation sequencing and provides a roadmap for future precision oncology trials, according to experts.

Massachusetts General Hospital

The effort is the National Cancer Institute Molecular Analysis for Therapy Choice (NCI-MATCH) trial. For this study, researchers performed next-generation sequencing on tumor biopsy specimens to identify therapeutically actionable molecular alterations in patients with “underexplored” cancer types.

The trial included 5,954 patients with cancers that had progressed on standard treatments or rare cancers for which there is no standard treatment. If actionable alterations were found in these patients, they could receive new drugs in development that showed promise in other clinical trials or drugs that were approved by the Food and Drug Administration to treat at least one cancer type.

Data newly reported in the Journal of Clinical Oncology showed that 37.6% of patients had alterations that could be matched to targeted drugs, and 17.8% of patients were assigned to targeted treatment. Multiple actionable tumor mutations were seen in 11.9% of specimens, and resistance-conferring mutations were seen in 71.3% of specimens.

“The bottom line from this report is that next-generation sequencing is an efficient way to identify both approved and promising investigational therapies. For this reason, it should be considered standard of care for patients with advanced cancers,” said study chair Keith T. Flaherty, MD, director of the Henri and Belinda Termeer Center for Targeted Therapy at Massachusetts General Hospital Cancer Center in Boston.

“This study sets the benchmark for the ‘actionability’ of next-generation sequencing,” Dr. Flaherty added. “We expect this number [of actionable alterations] will continue to rise steadily as further advances are made in the development of therapies that target some of the genetic alterations for which we could not offer treatment options in NCI-MATCH.”
 

Relapsed/refractory vs. primary tumors

The NCI-MATCH researchers focused on the most commonly found genetic alterations and performed biopsies at study entry to provide the most accurate picture of the genetic landscape of relapsed/refractory cancer patients. That makes this cohort distinct from The Cancer Genome Atlas (TCGA), a database of patients with mostly untreated primary tumors, and other published cohorts that include genetic analysis of primary tumors and biopsies from the time of initial metastatic recurrence.

The researchers compared the tumor gene makeup of NCI-MATCH and TCGA patients with seven cancer types – breast, bile duct, cervix, colorectal, lung, pancreas, and prostate.

ECOG-ACRIN Cancer Research Group

“Perhaps the biggest surprise was the relatively minimal change in the genetic alterations found in these relapsed/refractory patients, compared to primary tumors,” Dr. Flaherty said. “These findings suggest that it is very reasonable to perform next-generation sequencing at the time of initial metastatic cancer diagnosis and to rely on those findings for the purposes of considering FDA-approved therapies and clinical trial participation.”
 

Multiple alterations and resistance

The complex genetics of cancers has led researchers to explore combinations of targeted and other therapies to address multiple defects at the same time.

“Not surprisingly, the most common collision of multiple genetic alterations within the same tumor was in the commonly altered tumor suppressor genes: TP53, APC, and PTEN,” Dr. Flaherty said.

“An increasing body of evidence supports a role for loss-of-function alterations in these genes to confer resistance to many targeted therapies,” he added. “While we don’t have targeted therapies yet established to directly counter this form of therapeutic resistance, we hypothesize that various types of combination therapy may be able to indirectly undercut resistance and enhance the benefit of many targeted therapies.”

The NCI-MATCH researchers will continue to mine this large dataset to better understand the many small, genetically defined cancer subpopulations.

“We will continue to report the outcome of the individual treatment subprotocols, and combining this genetic analysis with those outcomes will likely inform the next clinical trials,” Dr. Flaherty said.
 

Actionable mutations make a difference

Precision oncology experts agree that NCI-MATCH results are impressive and add a fuller appreciation that actionable mutations make a clinical difference.

“This is a powerful, extremely well-designed study, a tour de force of collaborative science,” said Stephen Gruber, MD, PhD, director of the Center for Precision Medicine at City of Hope National Medical Center in Duarte, Calif.

“The future holds even more promise,” he added. “Our ability to interrogate the genomic landscape of cancer is improving rapidly. Tumor testing helps get the right drug to the right tumor faster than a guidelines-based approach from historical data of combination chemotherapy. This is a likely game changer for the way oncologists will practice in the future, especially as we learn more results of subset trials. The NCI-MATCH researchers have taken a laser-focused look at the current data, but we now know we can look far more comprehensively at genomic profiles of tumors.”

From the viewpoint of the practicing oncologist, co-occurring resistance mutations make a difference in defining what combinations are likely and, more importantly, less likely to be effective. “When we see two mutations and one is likely to confer resistance, we can make a choice to avoid a drug that is not likely to work,” Dr. Gruber said.

“The NCI-MATCH trial allows both approved and investigational agents, which expands the possibility of matching patients to newer agents. This is especially relevant if there are no FDA-approved drugs yet for some molecular aberrations,” said Lillian L. Siu, MD, a senior medical oncologist at the Princess Margaret Cancer Centre in Toronto. “This trial enables such evaluations under the auspice of a clinical trial to provide important knowledge.”

Both experts agree that in-depth biological interrogations of cancer will move the field of precision oncology forward. Dr. Gruber said that “studies have not yet fully addressed the power of germline genetic testing of DNA. Inherited susceptibility will drive therapeutic choices – for example, PARP inhibitors that access homologous recombination deficiency for breast, ovarian, and prostate cancer. We will learn more about treatment choices for those cancers.”

Dr. Siu added: “I truly believe that liquid biopsies [circulating tumor DNA] will help us perform target-drug matching in a less invasive way. We need to explore beyond the genome to look at the transcriptome, proteome, epigenome, and immunome, among others. It is likely that multiomic predictors are going to be able to identify more therapeutic options compared to single genomic predictors.”

Dr. Flaherty noted that all tumor samples from patients assigned to treatment are being subjected to whole-exome sequencing to further the discovery of the genetic features of responsive and nonresponsive tumors.

NCI-MATCH was funded by the National Cancer Institute. Dr. Flaherty disclosed relationships with Clovis Oncology, Loxo, X4 Pharma, and many other companies. His coauthors disclosed many conflicts as well. Dr. Gruber is cofounder of Brogent International. Dr. Siu disclosed relationships with Agios, Treadwell Therapeutics, Merck, Pfizer, and many other companies.

SOURCE: Flaherty KT et al. J Clin Oncol. 2020 Oct 13. doi: 10.1200/JCO.19.03010.

A national effort to perform genotype drug matching across cancer types shows the value of next-generation sequencing and provides a roadmap for future precision oncology trials, according to experts.

Massachusetts General Hospital

The effort is the National Cancer Institute Molecular Analysis for Therapy Choice (NCI-MATCH) trial. For this study, researchers performed next-generation sequencing on tumor biopsy specimens to identify therapeutically actionable molecular alterations in patients with “underexplored” cancer types.

The trial included 5,954 patients with cancers that had progressed on standard treatments or rare cancers for which there is no standard treatment. If actionable alterations were found in these patients, they could receive new drugs in development that showed promise in other clinical trials or drugs that were approved by the Food and Drug Administration to treat at least one cancer type.

Data newly reported in the Journal of Clinical Oncology showed that 37.6% of patients had alterations that could be matched to targeted drugs, and 17.8% of patients were assigned to targeted treatment. Multiple actionable tumor mutations were seen in 11.9% of specimens, and resistance-conferring mutations were seen in 71.3% of specimens.

“The bottom line from this report is that next-generation sequencing is an efficient way to identify both approved and promising investigational therapies. For this reason, it should be considered standard of care for patients with advanced cancers,” said study chair Keith T. Flaherty, MD, director of the Henri and Belinda Termeer Center for Targeted Therapy at Massachusetts General Hospital Cancer Center in Boston.

“This study sets the benchmark for the ‘actionability’ of next-generation sequencing,” Dr. Flaherty added. “We expect this number [of actionable alterations] will continue to rise steadily as further advances are made in the development of therapies that target some of the genetic alterations for which we could not offer treatment options in NCI-MATCH.”
 

Relapsed/refractory vs. primary tumors

The NCI-MATCH researchers focused on the most commonly found genetic alterations and performed biopsies at study entry to provide the most accurate picture of the genetic landscape of relapsed/refractory cancer patients. That makes this cohort distinct from The Cancer Genome Atlas (TCGA), a database of patients with mostly untreated primary tumors, and other published cohorts that include genetic analysis of primary tumors and biopsies from the time of initial metastatic recurrence.

The researchers compared the tumor gene makeup of NCI-MATCH and TCGA patients with seven cancer types – breast, bile duct, cervix, colorectal, lung, pancreas, and prostate.

ECOG-ACRIN Cancer Research Group

“Perhaps the biggest surprise was the relatively minimal change in the genetic alterations found in these relapsed/refractory patients, compared to primary tumors,” Dr. Flaherty said. “These findings suggest that it is very reasonable to perform next-generation sequencing at the time of initial metastatic cancer diagnosis and to rely on those findings for the purposes of considering FDA-approved therapies and clinical trial participation.”
 

Multiple alterations and resistance

The complex genetics of cancers has led researchers to explore combinations of targeted and other therapies to address multiple defects at the same time.

“Not surprisingly, the most common collision of multiple genetic alterations within the same tumor was in the commonly altered tumor suppressor genes: TP53, APC, and PTEN,” Dr. Flaherty said.

“An increasing body of evidence supports a role for loss-of-function alterations in these genes to confer resistance to many targeted therapies,” he added. “While we don’t have targeted therapies yet established to directly counter this form of therapeutic resistance, we hypothesize that various types of combination therapy may be able to indirectly undercut resistance and enhance the benefit of many targeted therapies.”

The NCI-MATCH researchers will continue to mine this large dataset to better understand the many small, genetically defined cancer subpopulations.

“We will continue to report the outcome of the individual treatment subprotocols, and combining this genetic analysis with those outcomes will likely inform the next clinical trials,” Dr. Flaherty said.
 

Actionable mutations make a difference

Precision oncology experts agree that NCI-MATCH results are impressive and add a fuller appreciation that actionable mutations make a clinical difference.

“This is a powerful, extremely well-designed study, a tour de force of collaborative science,” said Stephen Gruber, MD, PhD, director of the Center for Precision Medicine at City of Hope National Medical Center in Duarte, Calif.

“The future holds even more promise,” he added. “Our ability to interrogate the genomic landscape of cancer is improving rapidly. Tumor testing helps get the right drug to the right tumor faster than a guidelines-based approach from historical data of combination chemotherapy. This is a likely game changer for the way oncologists will practice in the future, especially as we learn more results of subset trials. The NCI-MATCH researchers have taken a laser-focused look at the current data, but we now know we can look far more comprehensively at genomic profiles of tumors.”

From the viewpoint of the practicing oncologist, co-occurring resistance mutations make a difference in defining what combinations are likely and, more importantly, less likely to be effective. “When we see two mutations and one is likely to confer resistance, we can make a choice to avoid a drug that is not likely to work,” Dr. Gruber said.

“The NCI-MATCH trial allows both approved and investigational agents, which expands the possibility of matching patients to newer agents. This is especially relevant if there are no FDA-approved drugs yet for some molecular aberrations,” said Lillian L. Siu, MD, a senior medical oncologist at the Princess Margaret Cancer Centre in Toronto. “This trial enables such evaluations under the auspice of a clinical trial to provide important knowledge.”

Both experts agree that in-depth biological interrogations of cancer will move the field of precision oncology forward. Dr. Gruber said that “studies have not yet fully addressed the power of germline genetic testing of DNA. Inherited susceptibility will drive therapeutic choices – for example, PARP inhibitors that access homologous recombination deficiency for breast, ovarian, and prostate cancer. We will learn more about treatment choices for those cancers.”

Dr. Siu added: “I truly believe that liquid biopsies [circulating tumor DNA] will help us perform target-drug matching in a less invasive way. We need to explore beyond the genome to look at the transcriptome, proteome, epigenome, and immunome, among others. It is likely that multiomic predictors are going to be able to identify more therapeutic options compared to single genomic predictors.”

Dr. Flaherty noted that all tumor samples from patients assigned to treatment are being subjected to whole-exome sequencing to further the discovery of the genetic features of responsive and nonresponsive tumors.

NCI-MATCH was funded by the National Cancer Institute. Dr. Flaherty disclosed relationships with Clovis Oncology, Loxo, X4 Pharma, and many other companies. His coauthors disclosed many conflicts as well. Dr. Gruber is cofounder of Brogent International. Dr. Siu disclosed relationships with Agios, Treadwell Therapeutics, Merck, Pfizer, and many other companies.

SOURCE: Flaherty KT et al. J Clin Oncol. 2020 Oct 13. doi: 10.1200/JCO.19.03010.

It’s not ready for the clinic, but new research suggests that angiotensin receptor II blockers (ARBs) widely used to treat hypertension may improve responses to cancer immunotherapy agents targeted against the programmed death-1/ligand-1 (PD-1/PD-L1) pathway.

That conclusion comes from an observational study of 597 patients with more than 3 dozen different cancer types treated in clinical trials at the US National Institutes of Health. Investigators found that both objective response rates and 3-year overall survival (OS) rates were significantly higher for patients treated with a PD-1/PD-L1 inhibitor who were on ARBs, compared with patients who weren’t taking the antihypertensive agents.

An association was also seen between higher ORR and OS rates for patients taking ACE inhibitors, but it was not statistically significant, reported Julius Strauss, MD, from the Center for Cancer Research at the National Cancer Institute in Bethesda, Md.

All study patients received PD-1/PD-L1 inhibitors, and the ORR for patients treated with ARBs was 33.8%, compared with 19.5% for those treated with ACE inhibitors, and 17% for those who took neither drug. The respective complete response (CR) rates were 11.3%, 3.7%, and 3.1%.

Strauss discussed the data during an online briefing prior to his presentation of the findings during the 32nd EORTC-NCI-AACR Symposium on Molecular Targets and Cancer Therapeutics, which is taking place virtually.

Several early studies have suggested that angiotensin II, in addition to its effect on blood pressure, can also affect cancer growth by leading to downstream production of two proteins: vascular endothelial growth factor (VEGF) and transforming growth factor–beta (TGF-beta), he explained.

“Both of these [proteins] have been linked to cancer growth and cancer resistance to immune system attack,” Strauss observed.

He also discussed the mechanics of possible effects. Angiotensin II increases VEGF and TGF-beta through binding to the AT1 receptor, but has the opposite effect when it binds to the AT2 receptor, resulting in a decrease in both of the growth factors, he added.

ACE inhibitors prevent the conversion of angiotensin I to angiotensin II, with the result being that the drugs indirectly block both the AT1 and AT2 receptors.

In contrast, ARBs block only the AT1 receptor and leave the AT2 counter-regulatory receptor alone, said Strauss.
 

More data, including on overall survival

Strauss and colleagues examined whether ACE inhibitors and/or ARBs could have an effect on the response to PD-1/PD-L1 immune checkpoint inhibitors delivered with or without other immunotherapies, such as anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) checkpoint inhibitors, or targeted agents such as tyrosine kinase inhibitors (TKIs).

They pooled data on 597 patients receiving PD-1/PD-L1 inhibitors in clinical trials for various cancers, including 71 receiving concomitant ARBs, 82 receiving an ACE inhibitor, and 444 who were not receiving either class of antihypertensives.

The above-mentioned improvement in ORR with ARBs compared with patients not receiving the drug was statistically significant (P = .001), as was the improvement in CR rates (P = .002). In contrast, neither ORR nor CR were significantly better with patients on ACE inhibitors compared with patients not taking these drugs.

In multiple regression analysis controlling for age, gender, body mass index (BMI), tumor type, and additional therapies given, the superior ORR and CR rates with ARBs remained (P = .039 and .002, respectively), while there continued to be no significant additional benefit with ACE inhibitors.

The median overall survival was 35.2 months for patients on ARBs, 26.2 months for those on ACE inhibitors, and 18.8 months for patients on neither drug. The respective 3-year OS rates were 48.1%, 37.2%, and 31.5%, with the difference between the ARB and no-drug groups being significant (P = .0078).

In regression analysis controlling for the factors mentioned before, the OS advantage with ARBs but not ACE inhibitors remained significant (P = .006 for ARBs, and .078 for ACE inhibitors).

Strauss emphasized that further study is needed to determine if AT1 blockade can improve outcomes when combined anti-PD-1/PD-L1-based therapy.

It might be reasonable for patients who are taking ACE inhibitors to control blood pressure and are also receiving immunotherapy with a PD-1/PD-L1 inhibitor to be switched to an ARB if it is deemed safe and if further research bears it out, said Strauss in response to a question from Medscape Medical News.
 

Hypothesis-generating study

Meeting cochair Emiliano Calvo, MD, PhD, from Hospital de Madrid Norte Sanchinarro in Madrid, who attended the media briefing but was not involved in the study, commented that hypothesis-generating research using drugs already on the market for other indications adds important value to cancer therapy.

James Gulley, MD, PhD, from the Center for Cancer Research at the NCI, also a meeting cochair, agreed with Calvo.

“Thinking about utilizing the data that already exists to really get hypothesis-generating questions, it also opens up the possibility for real-world data, real-world evidence from these big datasets from [electronic medical records] that we could really interrogate and understand what we might see and get these hypothesis-generating findings that we could then prospectively evaluate,” Gulley said.

The research was funded by the National Cancer Institute. Strauss and Gulley are National Cancer Institute employees. Calvo disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

It’s not ready for the clinic, but new research suggests that angiotensin receptor II blockers (ARBs) widely used to treat hypertension may improve responses to cancer immunotherapy agents targeted against the programmed death-1/ligand-1 (PD-1/PD-L1) pathway.

That conclusion comes from an observational study of 597 patients with more than 3 dozen different cancer types treated in clinical trials at the US National Institutes of Health. Investigators found that both objective response rates and 3-year overall survival (OS) rates were significantly higher for patients treated with a PD-1/PD-L1 inhibitor who were on ARBs, compared with patients who weren’t taking the antihypertensive agents.

An association was also seen between higher ORR and OS rates for patients taking ACE inhibitors, but it was not statistically significant, reported Julius Strauss, MD, from the Center for Cancer Research at the National Cancer Institute in Bethesda, Md.

All study patients received PD-1/PD-L1 inhibitors, and the ORR for patients treated with ARBs was 33.8%, compared with 19.5% for those treated with ACE inhibitors, and 17% for those who took neither drug. The respective complete response (CR) rates were 11.3%, 3.7%, and 3.1%.

Strauss discussed the data during an online briefing prior to his presentation of the findings during the 32nd EORTC-NCI-AACR Symposium on Molecular Targets and Cancer Therapeutics, which is taking place virtually.

Several early studies have suggested that angiotensin II, in addition to its effect on blood pressure, can also affect cancer growth by leading to downstream production of two proteins: vascular endothelial growth factor (VEGF) and transforming growth factor–beta (TGF-beta), he explained.

“Both of these [proteins] have been linked to cancer growth and cancer resistance to immune system attack,” Strauss observed.

He also discussed the mechanics of possible effects. Angiotensin II increases VEGF and TGF-beta through binding to the AT1 receptor, but has the opposite effect when it binds to the AT2 receptor, resulting in a decrease in both of the growth factors, he added.

ACE inhibitors prevent the conversion of angiotensin I to angiotensin II, with the result being that the drugs indirectly block both the AT1 and AT2 receptors.

In contrast, ARBs block only the AT1 receptor and leave the AT2 counter-regulatory receptor alone, said Strauss.
 

More data, including on overall survival

Strauss and colleagues examined whether ACE inhibitors and/or ARBs could have an effect on the response to PD-1/PD-L1 immune checkpoint inhibitors delivered with or without other immunotherapies, such as anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) checkpoint inhibitors, or targeted agents such as tyrosine kinase inhibitors (TKIs).

They pooled data on 597 patients receiving PD-1/PD-L1 inhibitors in clinical trials for various cancers, including 71 receiving concomitant ARBs, 82 receiving an ACE inhibitor, and 444 who were not receiving either class of antihypertensives.

The above-mentioned improvement in ORR with ARBs compared with patients not receiving the drug was statistically significant (P = .001), as was the improvement in CR rates (P = .002). In contrast, neither ORR nor CR were significantly better with patients on ACE inhibitors compared with patients not taking these drugs.

In multiple regression analysis controlling for age, gender, body mass index (BMI), tumor type, and additional therapies given, the superior ORR and CR rates with ARBs remained (P = .039 and .002, respectively), while there continued to be no significant additional benefit with ACE inhibitors.

The median overall survival was 35.2 months for patients on ARBs, 26.2 months for those on ACE inhibitors, and 18.8 months for patients on neither drug. The respective 3-year OS rates were 48.1%, 37.2%, and 31.5%, with the difference between the ARB and no-drug groups being significant (P = .0078).

In regression analysis controlling for the factors mentioned before, the OS advantage with ARBs but not ACE inhibitors remained significant (P = .006 for ARBs, and .078 for ACE inhibitors).

Strauss emphasized that further study is needed to determine if AT1 blockade can improve outcomes when combined anti-PD-1/PD-L1-based therapy.

It might be reasonable for patients who are taking ACE inhibitors to control blood pressure and are also receiving immunotherapy with a PD-1/PD-L1 inhibitor to be switched to an ARB if it is deemed safe and if further research bears it out, said Strauss in response to a question from Medscape Medical News.
 

Hypothesis-generating study

Meeting cochair Emiliano Calvo, MD, PhD, from Hospital de Madrid Norte Sanchinarro in Madrid, who attended the media briefing but was not involved in the study, commented that hypothesis-generating research using drugs already on the market for other indications adds important value to cancer therapy.

James Gulley, MD, PhD, from the Center for Cancer Research at the NCI, also a meeting cochair, agreed with Calvo.

“Thinking about utilizing the data that already exists to really get hypothesis-generating questions, it also opens up the possibility for real-world data, real-world evidence from these big datasets from [electronic medical records] that we could really interrogate and understand what we might see and get these hypothesis-generating findings that we could then prospectively evaluate,” Gulley said.

The research was funded by the National Cancer Institute. Strauss and Gulley are National Cancer Institute employees. Calvo disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

It’s not ready for the clinic, but new research suggests that angiotensin receptor II blockers (ARBs) widely used to treat hypertension may improve responses to cancer immunotherapy agents targeted against the programmed death-1/ligand-1 (PD-1/PD-L1) pathway.

That conclusion comes from an observational study of 597 patients with more than 3 dozen different cancer types treated in clinical trials at the US National Institutes of Health. Investigators found that both objective response rates and 3-year overall survival (OS) rates were significantly higher for patients treated with a PD-1/PD-L1 inhibitor who were on ARBs, compared with patients who weren’t taking the antihypertensive agents.

An association was also seen between higher ORR and OS rates for patients taking ACE inhibitors, but it was not statistically significant, reported Julius Strauss, MD, from the Center for Cancer Research at the National Cancer Institute in Bethesda, Md.

All study patients received PD-1/PD-L1 inhibitors, and the ORR for patients treated with ARBs was 33.8%, compared with 19.5% for those treated with ACE inhibitors, and 17% for those who took neither drug. The respective complete response (CR) rates were 11.3%, 3.7%, and 3.1%.

Strauss discussed the data during an online briefing prior to his presentation of the findings during the 32nd EORTC-NCI-AACR Symposium on Molecular Targets and Cancer Therapeutics, which is taking place virtually.

Several early studies have suggested that angiotensin II, in addition to its effect on blood pressure, can also affect cancer growth by leading to downstream production of two proteins: vascular endothelial growth factor (VEGF) and transforming growth factor–beta (TGF-beta), he explained.

“Both of these [proteins] have been linked to cancer growth and cancer resistance to immune system attack,” Strauss observed.

He also discussed the mechanics of possible effects. Angiotensin II increases VEGF and TGF-beta through binding to the AT1 receptor, but has the opposite effect when it binds to the AT2 receptor, resulting in a decrease in both of the growth factors, he added.

ACE inhibitors prevent the conversion of angiotensin I to angiotensin II, with the result being that the drugs indirectly block both the AT1 and AT2 receptors.

In contrast, ARBs block only the AT1 receptor and leave the AT2 counter-regulatory receptor alone, said Strauss.
 

More data, including on overall survival

Strauss and colleagues examined whether ACE inhibitors and/or ARBs could have an effect on the response to PD-1/PD-L1 immune checkpoint inhibitors delivered with or without other immunotherapies, such as anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) checkpoint inhibitors, or targeted agents such as tyrosine kinase inhibitors (TKIs).

They pooled data on 597 patients receiving PD-1/PD-L1 inhibitors in clinical trials for various cancers, including 71 receiving concomitant ARBs, 82 receiving an ACE inhibitor, and 444 who were not receiving either class of antihypertensives.

The above-mentioned improvement in ORR with ARBs compared with patients not receiving the drug was statistically significant (P = .001), as was the improvement in CR rates (P = .002). In contrast, neither ORR nor CR were significantly better with patients on ACE inhibitors compared with patients not taking these drugs.

In multiple regression analysis controlling for age, gender, body mass index (BMI), tumor type, and additional therapies given, the superior ORR and CR rates with ARBs remained (P = .039 and .002, respectively), while there continued to be no significant additional benefit with ACE inhibitors.

The median overall survival was 35.2 months for patients on ARBs, 26.2 months for those on ACE inhibitors, and 18.8 months for patients on neither drug. The respective 3-year OS rates were 48.1%, 37.2%, and 31.5%, with the difference between the ARB and no-drug groups being significant (P = .0078).

In regression analysis controlling for the factors mentioned before, the OS advantage with ARBs but not ACE inhibitors remained significant (P = .006 for ARBs, and .078 for ACE inhibitors).

Strauss emphasized that further study is needed to determine if AT1 blockade can improve outcomes when combined anti-PD-1/PD-L1-based therapy.

It might be reasonable for patients who are taking ACE inhibitors to control blood pressure and are also receiving immunotherapy with a PD-1/PD-L1 inhibitor to be switched to an ARB if it is deemed safe and if further research bears it out, said Strauss in response to a question from Medscape Medical News.
 

Hypothesis-generating study

Meeting cochair Emiliano Calvo, MD, PhD, from Hospital de Madrid Norte Sanchinarro in Madrid, who attended the media briefing but was not involved in the study, commented that hypothesis-generating research using drugs already on the market for other indications adds important value to cancer therapy.

James Gulley, MD, PhD, from the Center for Cancer Research at the NCI, also a meeting cochair, agreed with Calvo.

“Thinking about utilizing the data that already exists to really get hypothesis-generating questions, it also opens up the possibility for real-world data, real-world evidence from these big datasets from [electronic medical records] that we could really interrogate and understand what we might see and get these hypothesis-generating findings that we could then prospectively evaluate,” Gulley said.

The research was funded by the National Cancer Institute. Strauss and Gulley are National Cancer Institute employees. Calvo disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

Sensitivity and area under the curve (AUC) analyses of thermography that is combined with diagnostic software demonstrate “the efficacy of the tool for breast cancer screening,” concludes an observational, comparative study from India published online Oct. 1 in JCO Global Oncology, a publication of the American Society of Clinical Oncology.

Siva Teja Kakileti of Niramai Health Analytix, Koramangala, Bangalore, India, and colleagues said that the product, Thermalytix, is potentially a good fit for low- and middle-income countries because it is portable and provides automated quantitative analysis of thermal images – and thus can be conducted by technicians with “minimal training.”

Conventional thermography involves manual interpretation of complex thermal images, which “often results in erroneous results owing to subjectivity,” said the study authors.

That manual interpretation of thermal images might involve looking at 200 color shades, which is “high cognitive overload for the thermographer,” explained Mr. Kakileti in an interview.

However, an American mammography expert who was approached for comment dismissed thermography – even with the new twist of software-aided diagnostic scoring by Thermalytix – as wholly inappropriate for the detection of early breast cancer, owing to inherent limitations.

“Thermal imaging of any type has no value in finding early breast cancer,” Daniel Kopans, MD, of Harvard University and Massachusetts General Hospital, both in Boston, said in an interview. He said that thermal imaging only detects heat on the skin and perhaps a few millimeters beneath the skin and thus misses deeper cancers, the heat from which is carried away by the vascular system.

The new study included 470 women who presented for breast screening at two centers in Bangalore, India. A total of 238 women had symptoms such as breast lump, nipple discharge, skin changes, or breast pain; the remaining 232 women were asymptomatic.

All participants underwent a Thermalytix test and one or more standard-of-care tests for breast cancer screening (such as mammography, ultrasonography, biopsy, fine-needle aspiration, or elastography). A total of 78 women, or 16.6% of the group overall, were diagnosed with a malignancy. For the overall group of 470 women, Thermalytix had a sensitivity of 91.02% (symptomatic, 89.85%; asymptomatic,100%) and a specificity of 82.39% (symptomatic, 69.04%; asymptomatic, 92.41%) in detection of breast malignancy. Thermalytix showed an overall AUC of 0.90, with an AUC of 0.82 for symptomatic and 0.98 for asymptomatic women.

The study authors characterized both the sensitivity and AUC as “high.”

The results from the study, which the authors characterized as preliminary, encouraged the study sponsor, Niramai, to start planning a large-scale, multicountry trial.

But Dr. Kopans, who serves as a consultant to DART, which produces digital breast tomosynthesis units in China, suggested that this research will be fruitless. “Thermal imaging seems to raise its head every few years since it is passive, but it does not work and is a waste of money,” Dr. Kopans reiterated.

“Its use can be dangerous by dissuading women from being screened with mammography, which has been proven to save lives,” he stressed.
 

Thermalytix compared with mammography

Investigators also compared screening results in the subset of 242 women who underwent both Thermalytix and mammography. Results showed that Thermalytix had a higher sensitivity than did mammography (91.23% vs. 85.96%), but mammography had a higher specificity than Thermalytix did (94.05% vs. 68.65%).

In the asymptomatic group who underwent both tests (n = 95), four cancers were detected, and Thermalytix demonstrated superior sensitivity than mammography (100% vs. 50%), Mr. Kakileti and colleagues state.
 

Thermalytix evaluates vascularity variations too

In the subset of 228 women who did not undergo mammography (owing to dense breasts, younger age, or other reasons), Thermalytix detected tumors in all but 3 of 21 patients who went on to be diagnosed with breast cancer. The authors state that, because their artificial intelligence–based analysis uses vascularity, as well as temperature variations on the skin, to complement hot-spot detection, it is able to detect small lesions.

In the current study, 24 malignant tumors were less than 2 cm in diameter, and Thermalytix was able to identify 17 of the tumors as positive, for a 71% sensitivity rate for T1 tumors. This compared with a 68% sensitivity rate for mammography for detecting the same T1 tumors. Thermalytix also showed promising results in women younger than 40 years, for whom screening mammography is not usually recommended. The automated test picked up all 11 tumors eventually diagnosed in this younger cohort.

“Thermalytix is a portable, noninvasive, radiation-free test that has shown promising results in this preliminary study,” the investigators wrote, “[and] it can be an affordable and scalable method of screening in remote areas,” they added.

“We believe that Thermalytix ... is poised to be a promising modality for breast cancer screening,” Mr. Kakileti and colleagues summarized.
 

The FDA warns about thermography in place of mammography

The US Food and Drug Administration fairly recently warned against the use of thermography as an alternative to mammography for breast cancer screening or diagnosis, noting that it has received reports that facilities where thermography is offered often provide false information about the technology that can mislead patients into believing that it is either an alternative to or a better option than mammography.

Dr. Kopans says that other groups have invested in thermography research. “The Israelis spent millions working on a similar approach that didn’t work,” he commented.

The new software from Thermalytix, which is derived from artificial intelligence, is a “gimmick,” says the Boston radiologist. “If the basic information is not there, a computer cannot find it,” he stated, referring to what he believes are deeper-tissue tumors that are inaccessible to heat-detecting technology.

Mr. Kakileti is an employee of Nirami Health Analytix and owns stock and has filed patents with the company. Other investigators are also employed by the same company or receive research and other funding or have patents filed by the company as well. Dr. Kopans serves as a consultant to DART, which produces digital breast tomosynthesis units in China.
 

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

Sensitivity and area under the curve (AUC) analyses of thermography that is combined with diagnostic software demonstrate “the efficacy of the tool for breast cancer screening,” concludes an observational, comparative study from India published online Oct. 1 in JCO Global Oncology, a publication of the American Society of Clinical Oncology.

Siva Teja Kakileti of Niramai Health Analytix, Koramangala, Bangalore, India, and colleagues said that the product, Thermalytix, is potentially a good fit for low- and middle-income countries because it is portable and provides automated quantitative analysis of thermal images – and thus can be conducted by technicians with “minimal training.”

Conventional thermography involves manual interpretation of complex thermal images, which “often results in erroneous results owing to subjectivity,” said the study authors.

That manual interpretation of thermal images might involve looking at 200 color shades, which is “high cognitive overload for the thermographer,” explained Mr. Kakileti in an interview.

However, an American mammography expert who was approached for comment dismissed thermography – even with the new twist of software-aided diagnostic scoring by Thermalytix – as wholly inappropriate for the detection of early breast cancer, owing to inherent limitations.

“Thermal imaging of any type has no value in finding early breast cancer,” Daniel Kopans, MD, of Harvard University and Massachusetts General Hospital, both in Boston, said in an interview. He said that thermal imaging only detects heat on the skin and perhaps a few millimeters beneath the skin and thus misses deeper cancers, the heat from which is carried away by the vascular system.

The new study included 470 women who presented for breast screening at two centers in Bangalore, India. A total of 238 women had symptoms such as breast lump, nipple discharge, skin changes, or breast pain; the remaining 232 women were asymptomatic.

All participants underwent a Thermalytix test and one or more standard-of-care tests for breast cancer screening (such as mammography, ultrasonography, biopsy, fine-needle aspiration, or elastography). A total of 78 women, or 16.6% of the group overall, were diagnosed with a malignancy. For the overall group of 470 women, Thermalytix had a sensitivity of 91.02% (symptomatic, 89.85%; asymptomatic,100%) and a specificity of 82.39% (symptomatic, 69.04%; asymptomatic, 92.41%) in detection of breast malignancy. Thermalytix showed an overall AUC of 0.90, with an AUC of 0.82 for symptomatic and 0.98 for asymptomatic women.

The study authors characterized both the sensitivity and AUC as “high.”

The results from the study, which the authors characterized as preliminary, encouraged the study sponsor, Niramai, to start planning a large-scale, multicountry trial.

But Dr. Kopans, who serves as a consultant to DART, which produces digital breast tomosynthesis units in China, suggested that this research will be fruitless. “Thermal imaging seems to raise its head every few years since it is passive, but it does not work and is a waste of money,” Dr. Kopans reiterated.

“Its use can be dangerous by dissuading women from being screened with mammography, which has been proven to save lives,” he stressed.
 

Thermalytix compared with mammography

Investigators also compared screening results in the subset of 242 women who underwent both Thermalytix and mammography. Results showed that Thermalytix had a higher sensitivity than did mammography (91.23% vs. 85.96%), but mammography had a higher specificity than Thermalytix did (94.05% vs. 68.65%).

In the asymptomatic group who underwent both tests (n = 95), four cancers were detected, and Thermalytix demonstrated superior sensitivity than mammography (100% vs. 50%), Mr. Kakileti and colleagues state.
 

Thermalytix evaluates vascularity variations too

In the subset of 228 women who did not undergo mammography (owing to dense breasts, younger age, or other reasons), Thermalytix detected tumors in all but 3 of 21 patients who went on to be diagnosed with breast cancer. The authors state that, because their artificial intelligence–based analysis uses vascularity, as well as temperature variations on the skin, to complement hot-spot detection, it is able to detect small lesions.

In the current study, 24 malignant tumors were less than 2 cm in diameter, and Thermalytix was able to identify 17 of the tumors as positive, for a 71% sensitivity rate for T1 tumors. This compared with a 68% sensitivity rate for mammography for detecting the same T1 tumors. Thermalytix also showed promising results in women younger than 40 years, for whom screening mammography is not usually recommended. The automated test picked up all 11 tumors eventually diagnosed in this younger cohort.

“Thermalytix is a portable, noninvasive, radiation-free test that has shown promising results in this preliminary study,” the investigators wrote, “[and] it can be an affordable and scalable method of screening in remote areas,” they added.

“We believe that Thermalytix ... is poised to be a promising modality for breast cancer screening,” Mr. Kakileti and colleagues summarized.
 

The FDA warns about thermography in place of mammography

The US Food and Drug Administration fairly recently warned against the use of thermography as an alternative to mammography for breast cancer screening or diagnosis, noting that it has received reports that facilities where thermography is offered often provide false information about the technology that can mislead patients into believing that it is either an alternative to or a better option than mammography.

Dr. Kopans says that other groups have invested in thermography research. “The Israelis spent millions working on a similar approach that didn’t work,” he commented.

The new software from Thermalytix, which is derived from artificial intelligence, is a “gimmick,” says the Boston radiologist. “If the basic information is not there, a computer cannot find it,” he stated, referring to what he believes are deeper-tissue tumors that are inaccessible to heat-detecting technology.

Mr. Kakileti is an employee of Nirami Health Analytix and owns stock and has filed patents with the company. Other investigators are also employed by the same company or receive research and other funding or have patents filed by the company as well. Dr. Kopans serves as a consultant to DART, which produces digital breast tomosynthesis units in China.
 

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

Sensitivity and area under the curve (AUC) analyses of thermography that is combined with diagnostic software demonstrate “the efficacy of the tool for breast cancer screening,” concludes an observational, comparative study from India published online Oct. 1 in JCO Global Oncology, a publication of the American Society of Clinical Oncology.

Siva Teja Kakileti of Niramai Health Analytix, Koramangala, Bangalore, India, and colleagues said that the product, Thermalytix, is potentially a good fit for low- and middle-income countries because it is portable and provides automated quantitative analysis of thermal images – and thus can be conducted by technicians with “minimal training.”

Conventional thermography involves manual interpretation of complex thermal images, which “often results in erroneous results owing to subjectivity,” said the study authors.

That manual interpretation of thermal images might involve looking at 200 color shades, which is “high cognitive overload for the thermographer,” explained Mr. Kakileti in an interview.

However, an American mammography expert who was approached for comment dismissed thermography – even with the new twist of software-aided diagnostic scoring by Thermalytix – as wholly inappropriate for the detection of early breast cancer, owing to inherent limitations.

“Thermal imaging of any type has no value in finding early breast cancer,” Daniel Kopans, MD, of Harvard University and Massachusetts General Hospital, both in Boston, said in an interview. He said that thermal imaging only detects heat on the skin and perhaps a few millimeters beneath the skin and thus misses deeper cancers, the heat from which is carried away by the vascular system.

The new study included 470 women who presented for breast screening at two centers in Bangalore, India. A total of 238 women had symptoms such as breast lump, nipple discharge, skin changes, or breast pain; the remaining 232 women were asymptomatic.

All participants underwent a Thermalytix test and one or more standard-of-care tests for breast cancer screening (such as mammography, ultrasonography, biopsy, fine-needle aspiration, or elastography). A total of 78 women, or 16.6% of the group overall, were diagnosed with a malignancy. For the overall group of 470 women, Thermalytix had a sensitivity of 91.02% (symptomatic, 89.85%; asymptomatic,100%) and a specificity of 82.39% (symptomatic, 69.04%; asymptomatic, 92.41%) in detection of breast malignancy. Thermalytix showed an overall AUC of 0.90, with an AUC of 0.82 for symptomatic and 0.98 for asymptomatic women.

The study authors characterized both the sensitivity and AUC as “high.”

The results from the study, which the authors characterized as preliminary, encouraged the study sponsor, Niramai, to start planning a large-scale, multicountry trial.

But Dr. Kopans, who serves as a consultant to DART, which produces digital breast tomosynthesis units in China, suggested that this research will be fruitless. “Thermal imaging seems to raise its head every few years since it is passive, but it does not work and is a waste of money,” Dr. Kopans reiterated.

“Its use can be dangerous by dissuading women from being screened with mammography, which has been proven to save lives,” he stressed.
 

Thermalytix compared with mammography

Investigators also compared screening results in the subset of 242 women who underwent both Thermalytix and mammography. Results showed that Thermalytix had a higher sensitivity than did mammography (91.23% vs. 85.96%), but mammography had a higher specificity than Thermalytix did (94.05% vs. 68.65%).

In the asymptomatic group who underwent both tests (n = 95), four cancers were detected, and Thermalytix demonstrated superior sensitivity than mammography (100% vs. 50%), Mr. Kakileti and colleagues state.
 

Thermalytix evaluates vascularity variations too

In the subset of 228 women who did not undergo mammography (owing to dense breasts, younger age, or other reasons), Thermalytix detected tumors in all but 3 of 21 patients who went on to be diagnosed with breast cancer. The authors state that, because their artificial intelligence–based analysis uses vascularity, as well as temperature variations on the skin, to complement hot-spot detection, it is able to detect small lesions.

In the current study, 24 malignant tumors were less than 2 cm in diameter, and Thermalytix was able to identify 17 of the tumors as positive, for a 71% sensitivity rate for T1 tumors. This compared with a 68% sensitivity rate for mammography for detecting the same T1 tumors. Thermalytix also showed promising results in women younger than 40 years, for whom screening mammography is not usually recommended. The automated test picked up all 11 tumors eventually diagnosed in this younger cohort.

“Thermalytix is a portable, noninvasive, radiation-free test that has shown promising results in this preliminary study,” the investigators wrote, “[and] it can be an affordable and scalable method of screening in remote areas,” they added.

“We believe that Thermalytix ... is poised to be a promising modality for breast cancer screening,” Mr. Kakileti and colleagues summarized.
 

The FDA warns about thermography in place of mammography

The US Food and Drug Administration fairly recently warned against the use of thermography as an alternative to mammography for breast cancer screening or diagnosis, noting that it has received reports that facilities where thermography is offered often provide false information about the technology that can mislead patients into believing that it is either an alternative to or a better option than mammography.

Dr. Kopans says that other groups have invested in thermography research. “The Israelis spent millions working on a similar approach that didn’t work,” he commented.

The new software from Thermalytix, which is derived from artificial intelligence, is a “gimmick,” says the Boston radiologist. “If the basic information is not there, a computer cannot find it,” he stated, referring to what he believes are deeper-tissue tumors that are inaccessible to heat-detecting technology.

Mr. Kakileti is an employee of Nirami Health Analytix and owns stock and has filed patents with the company. Other investigators are also employed by the same company or receive research and other funding or have patents filed by the company as well. Dr. Kopans serves as a consultant to DART, which produces digital breast tomosynthesis units in China.
 

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

A novel urine-based assay improved detection of urothelial carcinoma when compared with conventional urine cytology in a prospective, observational study.

The study authors developed a low-coverage whole-genome sequencing technique, called “Urine Exfoliated Cells Copy Number Aberration Detector” (UroCAD), to detect copy number variants in urine-exfoliated cells.

The team then tested whether UroCAD could detect urothelial carcinomas in a single-blinded trial.

Shuxiong Zeng, MD, PhD, of Naval Medical University, Shanghai, China, and colleagues described this work in Clinical Cancer Research.
 

Study details and results

The researchers first tested UroCAD on urine samples from a discovery cohort of 190 patients – 126 with urothelial carcinoma and 64 noncancer controls. In this group, UroCAD detected urothelial carcinoma with a sensitivity of 82.5% and a specificity of 96.9%.

The researchers also analyzed samples from a validation cohort of 95 patients – 56 with urothelial carcinoma and 39 noncancer controls.

In this cohort, UroCAD had significantly higher sensitivity than urine cytology (80.4% and 33.9%, respectively; P < .001) but similar specificity (94.9% and 100%, respectively; P = .49) for the detection of urothelial carcinoma.

Among seven patients with pTa tumors, UroCAD had a sensitivity of 71.4%, while urine cytology had a sensitivity of 0%.

UroCAD’s sensitivity was greater for high-grade than low-grade urothelial carcinomas (86.7% and 60.0%, respectively). The assay was also more sensitive for larger tumors, with sensitivities of 66.7% for tumors measuring 1 cm or less, 72% for tumors between 1 cm and 3 cm, and 95.5% for tumors larger than 3 cm.

“The relatively lower sensitivity of UroCAD for the detection of lower-grade or smaller tumors is not unexpected, as these tumors are less likely to have abundant chromosomal alterations,” study author Chuan-Liang Xu, MD, PhD, of the Changhai Hospital in Shanghai, explained in a press release. “Ultimately, we believe that our assay could help to reduce the frequency of cystoscopy examination but not to replace it.”

The researchers noted that UroCAD positivity was associated with microscopic epithelial cells in cancer patients, and this suggests that insufficient exfoliative cells “might be the major technique limitation.”
 

Conclusions and next steps

“In summary, UroCAD could be a highly specific, robust, and noninvasive urothelial carcinoma diagnostic method with improved sensitivity and similar specificity as compared with cytology tests,” the researchers concluded.

“Within the next 5 years, we can see UroCAD in a variety of commercial formats available to the global markets, including the USA,” Dr. Xu commented in an interview. “We see UroCAD as a disruptive technology in diagnosing and monitoring patients with urothelial carcinoma.

“In America, given the COVID-19 pandemic, we also envision UroCAD becoming commercially available in the form of a mailed, at-home collection kit for high-risk patients, which may also be purchased off the shelf at commercial pharmacies,” Dr. Xu added. “We hope UroCAD will make a positive clinical impact to the urology field.”

In a follow-up trial (NCT04432909), researchers are evaluating the utility of UroCAD in the surveillance of urothelial carcinoma.

The current research was supported by various funding sources in China. The authors reported having no conflicts of interest.

SOURCE: Zeng S et al. Clin Cancer Res. 2020 Oct 9. doi: 10.1158/1078-0432.CCR-20-0401.

A novel urine-based assay improved detection of urothelial carcinoma when compared with conventional urine cytology in a prospective, observational study.

The study authors developed a low-coverage whole-genome sequencing technique, called “Urine Exfoliated Cells Copy Number Aberration Detector” (UroCAD), to detect copy number variants in urine-exfoliated cells.

The team then tested whether UroCAD could detect urothelial carcinomas in a single-blinded trial.

Shuxiong Zeng, MD, PhD, of Naval Medical University, Shanghai, China, and colleagues described this work in Clinical Cancer Research.
 

Study details and results

The researchers first tested UroCAD on urine samples from a discovery cohort of 190 patients – 126 with urothelial carcinoma and 64 noncancer controls. In this group, UroCAD detected urothelial carcinoma with a sensitivity of 82.5% and a specificity of 96.9%.

The researchers also analyzed samples from a validation cohort of 95 patients – 56 with urothelial carcinoma and 39 noncancer controls.

In this cohort, UroCAD had significantly higher sensitivity than urine cytology (80.4% and 33.9%, respectively; P < .001) but similar specificity (94.9% and 100%, respectively; P = .49) for the detection of urothelial carcinoma.

Among seven patients with pTa tumors, UroCAD had a sensitivity of 71.4%, while urine cytology had a sensitivity of 0%.

UroCAD’s sensitivity was greater for high-grade than low-grade urothelial carcinomas (86.7% and 60.0%, respectively). The assay was also more sensitive for larger tumors, with sensitivities of 66.7% for tumors measuring 1 cm or less, 72% for tumors between 1 cm and 3 cm, and 95.5% for tumors larger than 3 cm.

“The relatively lower sensitivity of UroCAD for the detection of lower-grade or smaller tumors is not unexpected, as these tumors are less likely to have abundant chromosomal alterations,” study author Chuan-Liang Xu, MD, PhD, of the Changhai Hospital in Shanghai, explained in a press release. “Ultimately, we believe that our assay could help to reduce the frequency of cystoscopy examination but not to replace it.”

The researchers noted that UroCAD positivity was associated with microscopic epithelial cells in cancer patients, and this suggests that insufficient exfoliative cells “might be the major technique limitation.”
 

Conclusions and next steps

“In summary, UroCAD could be a highly specific, robust, and noninvasive urothelial carcinoma diagnostic method with improved sensitivity and similar specificity as compared with cytology tests,” the researchers concluded.

“Within the next 5 years, we can see UroCAD in a variety of commercial formats available to the global markets, including the USA,” Dr. Xu commented in an interview. “We see UroCAD as a disruptive technology in diagnosing and monitoring patients with urothelial carcinoma.

“In America, given the COVID-19 pandemic, we also envision UroCAD becoming commercially available in the form of a mailed, at-home collection kit for high-risk patients, which may also be purchased off the shelf at commercial pharmacies,” Dr. Xu added. “We hope UroCAD will make a positive clinical impact to the urology field.”

In a follow-up trial (NCT04432909), researchers are evaluating the utility of UroCAD in the surveillance of urothelial carcinoma.

The current research was supported by various funding sources in China. The authors reported having no conflicts of interest.

SOURCE: Zeng S et al. Clin Cancer Res. 2020 Oct 9. doi: 10.1158/1078-0432.CCR-20-0401.

A novel urine-based assay improved detection of urothelial carcinoma when compared with conventional urine cytology in a prospective, observational study.

The study authors developed a low-coverage whole-genome sequencing technique, called “Urine Exfoliated Cells Copy Number Aberration Detector” (UroCAD), to detect copy number variants in urine-exfoliated cells.

The team then tested whether UroCAD could detect urothelial carcinomas in a single-blinded trial.

Shuxiong Zeng, MD, PhD, of Naval Medical University, Shanghai, China, and colleagues described this work in Clinical Cancer Research.
 

Study details and results

The researchers first tested UroCAD on urine samples from a discovery cohort of 190 patients – 126 with urothelial carcinoma and 64 noncancer controls. In this group, UroCAD detected urothelial carcinoma with a sensitivity of 82.5% and a specificity of 96.9%.

The researchers also analyzed samples from a validation cohort of 95 patients – 56 with urothelial carcinoma and 39 noncancer controls.

In this cohort, UroCAD had significantly higher sensitivity than urine cytology (80.4% and 33.9%, respectively; P < .001) but similar specificity (94.9% and 100%, respectively; P = .49) for the detection of urothelial carcinoma.

Among seven patients with pTa tumors, UroCAD had a sensitivity of 71.4%, while urine cytology had a sensitivity of 0%.

UroCAD’s sensitivity was greater for high-grade than low-grade urothelial carcinomas (86.7% and 60.0%, respectively). The assay was also more sensitive for larger tumors, with sensitivities of 66.7% for tumors measuring 1 cm or less, 72% for tumors between 1 cm and 3 cm, and 95.5% for tumors larger than 3 cm.

“The relatively lower sensitivity of UroCAD for the detection of lower-grade or smaller tumors is not unexpected, as these tumors are less likely to have abundant chromosomal alterations,” study author Chuan-Liang Xu, MD, PhD, of the Changhai Hospital in Shanghai, explained in a press release. “Ultimately, we believe that our assay could help to reduce the frequency of cystoscopy examination but not to replace it.”

The researchers noted that UroCAD positivity was associated with microscopic epithelial cells in cancer patients, and this suggests that insufficient exfoliative cells “might be the major technique limitation.”
 

Conclusions and next steps

“In summary, UroCAD could be a highly specific, robust, and noninvasive urothelial carcinoma diagnostic method with improved sensitivity and similar specificity as compared with cytology tests,” the researchers concluded.

“Within the next 5 years, we can see UroCAD in a variety of commercial formats available to the global markets, including the USA,” Dr. Xu commented in an interview. “We see UroCAD as a disruptive technology in diagnosing and monitoring patients with urothelial carcinoma.

“In America, given the COVID-19 pandemic, we also envision UroCAD becoming commercially available in the form of a mailed, at-home collection kit for high-risk patients, which may also be purchased off the shelf at commercial pharmacies,” Dr. Xu added. “We hope UroCAD will make a positive clinical impact to the urology field.”

In a follow-up trial (NCT04432909), researchers are evaluating the utility of UroCAD in the surveillance of urothelial carcinoma.

The current research was supported by various funding sources in China. The authors reported having no conflicts of interest.

SOURCE: Zeng S et al. Clin Cancer Res. 2020 Oct 9. doi: 10.1158/1078-0432.CCR-20-0401.

Acalabrutinib, a next-generation Bruton tyrosine kinase inhibitor, provides prolonged progression-free survival and better tolerability, compared with standard-of-care regimens for relapsed or refractory chronic lymphocytic leukemia (CLL), according to final results from the phase 3 ASCEND study.

Courtesy Wikimedia Commons/Nephron/Creative Commons BY-SA-3.0

The estimated 18-month progression-free survival (PFS) at a median of 22 months was 82% in 155 patients treated with acalabrutinib, compared with 48% in 155 treated with investigator’s choice of either idelalisib-rituximab (IdR) or bendamustine-rituximab (BR), which were given in 119 and 36 patients, respectively, Paolo Ghia, MD, PhD, reported at the Society of Hematologic Oncology virtual meeting.

The benefits of acalabrutinib were apparent regardless of high-risk genetic characteristics: Those with and without both del(17p) and TP53 mutations had similarly good PFS outcomes with acalabrutinib versus IdR/BR (HRs, 0.11 and 0.29, respectively), as did those with versus without unmutated IgVH (HRs, 0.28 and 0.30, respectively), said Dr. Ghia, professor of medical oncology at the Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milan.

The median overall survival was not reached in either arm, but estimated 18-month OS was 88% in both groups, likely because of the crossover being allowed for nonresponders in the IdR/BR groups, he noted.
 

Overall responses

The investigator-assessed overall response rates, including partial response or better, were also similar in the groups at 80% and 84%, respectively, and ORR, including partial response with lymphocytosis, was 92% versus 88%.

The duration of response was not reached in the acalabrutinib arm versus 18 months with IdR/BR, and estimated duration of response was 85% versus 49%.

The median drug exposure with acalabrutinib was approximately double that with IdR and about four times that of BR, Dr. Ghia said, noting that the difference between acalabrutinib and BR is explained by the short 6-month duration of treatment with BR, but the difference between acalabrutinib and IdR is because of adverse events (AEs).
 

Adverse events

AEs were the most common reason for treatment discontinuation in all three groups, but they led to discontinuation in only 16% with acalabrutinib versus 56% with IdR, he added.

The rates of AEs and AEs of clinical interest were generally similar to those reported at the interim analysis as presented in 2019 at the European Hematology Association annual meeting and published in the Journal of Clinical Oncology, despite the additional 6 months of follow up, he said.

Additionally, the incidence of grade 3 or higher AEs, serious AEs, and treatment-related AEs were all greater with IdR than with acalabrutinib or BR. The most common AEs with acalabrutinib were headache, neutropenia, diarrhea, and upper-respiratory infection, which were mostly grade 1 or 2. The most common grade 3 or higher AEs were neutropenia, anemia, and pneumonia, which were reported in 12%, 17%, and 7% of patients.
 

Confirmatory results

“The final results from the ASCEND study confirm the findings at the interim analysis and support the favorable efficacy and safety of acalabrutinib versus standard-of-care regimens ... in patients with relapsed/refractory CLL,” Dr. Ghia said.

“Overall, these final results from ASCENT support the use of acalabrutinib in patients with relapsed/refractory CLL, including those with high-risk genetic features.”

This study was sponsored by Acerta Pharma. Dr. Ghia reported consulting or advisory roles, grant or research funding, and/or honoraria from Abbvie, BeiGene, Janssen, Gilead Sciences, Sunesis Pharmaceuticals, Juno Therapeutics, ArQule, Adaptive Biotechnologies, Dynamo Therapeutics, MEI Pharma, and Novartis.

[email protected]

SOURCE: Ghia P et al. SOHO 2020, Abstract CLL-091.

Acalabrutinib, a next-generation Bruton tyrosine kinase inhibitor, provides prolonged progression-free survival and better tolerability, compared with standard-of-care regimens for relapsed or refractory chronic lymphocytic leukemia (CLL), according to final results from the phase 3 ASCEND study.

Courtesy Wikimedia Commons/Nephron/Creative Commons BY-SA-3.0

The estimated 18-month progression-free survival (PFS) at a median of 22 months was 82% in 155 patients treated with acalabrutinib, compared with 48% in 155 treated with investigator’s choice of either idelalisib-rituximab (IdR) or bendamustine-rituximab (BR), which were given in 119 and 36 patients, respectively, Paolo Ghia, MD, PhD, reported at the Society of Hematologic Oncology virtual meeting.

The benefits of acalabrutinib were apparent regardless of high-risk genetic characteristics: Those with and without both del(17p) and TP53 mutations had similarly good PFS outcomes with acalabrutinib versus IdR/BR (HRs, 0.11 and 0.29, respectively), as did those with versus without unmutated IgVH (HRs, 0.28 and 0.30, respectively), said Dr. Ghia, professor of medical oncology at the Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milan.

The median overall survival was not reached in either arm, but estimated 18-month OS was 88% in both groups, likely because of the crossover being allowed for nonresponders in the IdR/BR groups, he noted.
 

Overall responses

The investigator-assessed overall response rates, including partial response or better, were also similar in the groups at 80% and 84%, respectively, and ORR, including partial response with lymphocytosis, was 92% versus 88%.

The duration of response was not reached in the acalabrutinib arm versus 18 months with IdR/BR, and estimated duration of response was 85% versus 49%.

The median drug exposure with acalabrutinib was approximately double that with IdR and about four times that of BR, Dr. Ghia said, noting that the difference between acalabrutinib and BR is explained by the short 6-month duration of treatment with BR, but the difference between acalabrutinib and IdR is because of adverse events (AEs).
 

Adverse events

AEs were the most common reason for treatment discontinuation in all three groups, but they led to discontinuation in only 16% with acalabrutinib versus 56% with IdR, he added.

The rates of AEs and AEs of clinical interest were generally similar to those reported at the interim analysis as presented in 2019 at the European Hematology Association annual meeting and published in the Journal of Clinical Oncology, despite the additional 6 months of follow up, he said.

Additionally, the incidence of grade 3 or higher AEs, serious AEs, and treatment-related AEs were all greater with IdR than with acalabrutinib or BR. The most common AEs with acalabrutinib were headache, neutropenia, diarrhea, and upper-respiratory infection, which were mostly grade 1 or 2. The most common grade 3 or higher AEs were neutropenia, anemia, and pneumonia, which were reported in 12%, 17%, and 7% of patients.
 

Confirmatory results

“The final results from the ASCEND study confirm the findings at the interim analysis and support the favorable efficacy and safety of acalabrutinib versus standard-of-care regimens ... in patients with relapsed/refractory CLL,” Dr. Ghia said.

“Overall, these final results from ASCENT support the use of acalabrutinib in patients with relapsed/refractory CLL, including those with high-risk genetic features.”

This study was sponsored by Acerta Pharma. Dr. Ghia reported consulting or advisory roles, grant or research funding, and/or honoraria from Abbvie, BeiGene, Janssen, Gilead Sciences, Sunesis Pharmaceuticals, Juno Therapeutics, ArQule, Adaptive Biotechnologies, Dynamo Therapeutics, MEI Pharma, and Novartis.

[email protected]

SOURCE: Ghia P et al. SOHO 2020, Abstract CLL-091.

Acalabrutinib, a next-generation Bruton tyrosine kinase inhibitor, provides prolonged progression-free survival and better tolerability, compared with standard-of-care regimens for relapsed or refractory chronic lymphocytic leukemia (CLL), according to final results from the phase 3 ASCEND study.

Courtesy Wikimedia Commons/Nephron/Creative Commons BY-SA-3.0

The estimated 18-month progression-free survival (PFS) at a median of 22 months was 82% in 155 patients treated with acalabrutinib, compared with 48% in 155 treated with investigator’s choice of either idelalisib-rituximab (IdR) or bendamustine-rituximab (BR), which were given in 119 and 36 patients, respectively, Paolo Ghia, MD, PhD, reported at the Society of Hematologic Oncology virtual meeting.

The benefits of acalabrutinib were apparent regardless of high-risk genetic characteristics: Those with and without both del(17p) and TP53 mutations had similarly good PFS outcomes with acalabrutinib versus IdR/BR (HRs, 0.11 and 0.29, respectively), as did those with versus without unmutated IgVH (HRs, 0.28 and 0.30, respectively), said Dr. Ghia, professor of medical oncology at the Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milan.

The median overall survival was not reached in either arm, but estimated 18-month OS was 88% in both groups, likely because of the crossover being allowed for nonresponders in the IdR/BR groups, he noted.
 

Overall responses

The investigator-assessed overall response rates, including partial response or better, were also similar in the groups at 80% and 84%, respectively, and ORR, including partial response with lymphocytosis, was 92% versus 88%.

The duration of response was not reached in the acalabrutinib arm versus 18 months with IdR/BR, and estimated duration of response was 85% versus 49%.

The median drug exposure with acalabrutinib was approximately double that with IdR and about four times that of BR, Dr. Ghia said, noting that the difference between acalabrutinib and BR is explained by the short 6-month duration of treatment with BR, but the difference between acalabrutinib and IdR is because of adverse events (AEs).
 

Adverse events

AEs were the most common reason for treatment discontinuation in all three groups, but they led to discontinuation in only 16% with acalabrutinib versus 56% with IdR, he added.

The rates of AEs and AEs of clinical interest were generally similar to those reported at the interim analysis as presented in 2019 at the European Hematology Association annual meeting and published in the Journal of Clinical Oncology, despite the additional 6 months of follow up, he said.

Additionally, the incidence of grade 3 or higher AEs, serious AEs, and treatment-related AEs were all greater with IdR than with acalabrutinib or BR. The most common AEs with acalabrutinib were headache, neutropenia, diarrhea, and upper-respiratory infection, which were mostly grade 1 or 2. The most common grade 3 or higher AEs were neutropenia, anemia, and pneumonia, which were reported in 12%, 17%, and 7% of patients.
 

Confirmatory results

“The final results from the ASCEND study confirm the findings at the interim analysis and support the favorable efficacy and safety of acalabrutinib versus standard-of-care regimens ... in patients with relapsed/refractory CLL,” Dr. Ghia said.

“Overall, these final results from ASCENT support the use of acalabrutinib in patients with relapsed/refractory CLL, including those with high-risk genetic features.”

This study was sponsored by Acerta Pharma. Dr. Ghia reported consulting or advisory roles, grant or research funding, and/or honoraria from Abbvie, BeiGene, Janssen, Gilead Sciences, Sunesis Pharmaceuticals, Juno Therapeutics, ArQule, Adaptive Biotechnologies, Dynamo Therapeutics, MEI Pharma, and Novartis.

[email protected]

SOURCE: Ghia P et al. SOHO 2020, Abstract CLL-091.

An updated European Society for Medical Oncology (ESMO) clinical practice guidelines were released to provide key recommendations on the management of chronic lymphocytic leukemia (CLL).

The guidelines were developed by a multidisciplinary group of experts from different institutions and countries in Europe and provide levels of evidence and grades of recommendation where applicable for issues regarding prognosis and treatment decisions in CLL. Such decisions depend on genetic and clinical factors such as age, stage, and comorbidities. The guidelines also focus on new therapies targeting B-cell-receptor pathways or defect mechanism of apoptosis, which have been found to induce long-lasting remissions. The guidelines were endorsed by the European Hematology Association (EHA) through the Scientific Working Group on CLL/European Research Initiative on CLL (ERIC), according to the report published online the Annals of Oncology.

These clinical practice guidelines were developed in accordance with the ESMO standard operating procedures for clinical practice guidelines development with use of relevant literature selected by the expert authors. Statements without grading were considered justified as standard clinical practice by the experts and the ESMO faculty.

Below are some highlights of the guidelines, which cover a wide array of topics regarding the diagnosis, staging, treatment, and progression of CLL disease.
 

Diagnosis

The guidelines indicate that CLL diagnosis is usually possible by immunophenotyping of peripheral blood only and that lymph node (LN) biopsy and/or bone marrow biopsy may be helpful if immunophenotyping is not conclusive for the diagnosis of CLL, according to Barbara Eichhorst, MD, of the University of Cologne (Germany) and colleagues on behalf of the ESMO guidelines committee.

Staging and risk assessment

Early asymptomatic-stage disease does not need further risk assessment, but after the first year, when all patients should be seen at 3-monthly intervals, patients can be followed every 3-12 months. The interval would depend on burden and dynamics of the disease obtained by the using history and physical examinations, including a careful palpation of all LN areas, spleen, and liver, as well as assessing complete blood cell count and differential count, according to the report.

Advanced- and symptomatic-stage disease requires a broader examination including imaging, history and status of relevant infections, and fluorescent in situ hybridization (FISH) assays for the detection of deletion of the chromosome 17 (del[17p]) affecting the tumor protein p53 expression and, in the absence of del(17p), TP53 sequencing for detection of TP53 gene mutation, according to the authors.

Prognostication

Two clinical staging systems are typically used in CLL. Both Binet and Rai staging systems separate three groups of patients with different prognosis, although “as a consequence of more effective therapy, the overall survival (OS) of patients with advanced stage has improved and the relevance of the staging systems for prognostication has decreased,” according to the report.

The recent addition of genetic markers has also proved highly relevant to identifying patients with different prognoses and to guide treatment.
 

Therapy

Although CLL is an incurable disease, choice and application of treatment are strongly tied to the length of survival, according to the authors. The guidelines recommend Binet and Rai staging with clinical symptoms as relevant for treatment indication. In addition, the identification of del(17p), TP53 mutations, and IGHV status are relevant for choice of therapy and should be assessed prior to treatment.

The guidelines discuss specific treatment modalities for various stages of the disease, from early stages to relapse.

For frontline therapy, different treatment strategies are available including continuous treatment with Bruton tyrosine kinase (BTK)–inhibitors, such as ibrutinib, until progression or time-limited therapy with ChT backbone and CD20 antibodies. In addition, the Food and Drug Administration and European Medicines Agency have recently approved the combination of venetoclax plus obinutuzumab for first-line therapy of CLL.

Treatment decisions should include an assessment of IGHV and TP53 status, as well as patient-related factors such as comedication, comorbidities, preferences, drug availability, and potential of treatment adherence, according to the guidelines.

In case of symptomatic relapse within 3 years after fixed-duration therapy or nonresponse to therapy, the guidelines recommend that the therapeutic regimen should be changed, regardless of the type of first-line either to venetoclax plus rituximab for 24 months or to ibrutinib, acalabrutinib, or other BTK inhibitors (if available) as continuous therapy.

The guidelines also discuss the possible roles for hematopoietic stem cell transplantation and cellular therapies, as well as the treatment of the various complications that can arise in patients with CLL, and dealing with various aspects of disease progression.

No external funds were provided for the production of the guidelines. The authors of the report and members of the ESMO Guidelines Committee reported numerous disclosures regarding pharmaceutical and biotechnology companies.

[email protected]

SOURCE: Eichhorst B et al. Ann Oncol. 2020 Oct 19. doi: 10.1016/j.annonc.2020.09.019.

An updated European Society for Medical Oncology (ESMO) clinical practice guidelines were released to provide key recommendations on the management of chronic lymphocytic leukemia (CLL).

The guidelines were developed by a multidisciplinary group of experts from different institutions and countries in Europe and provide levels of evidence and grades of recommendation where applicable for issues regarding prognosis and treatment decisions in CLL. Such decisions depend on genetic and clinical factors such as age, stage, and comorbidities. The guidelines also focus on new therapies targeting B-cell-receptor pathways or defect mechanism of apoptosis, which have been found to induce long-lasting remissions. The guidelines were endorsed by the European Hematology Association (EHA) through the Scientific Working Group on CLL/European Research Initiative on CLL (ERIC), according to the report published online the Annals of Oncology.

These clinical practice guidelines were developed in accordance with the ESMO standard operating procedures for clinical practice guidelines development with use of relevant literature selected by the expert authors. Statements without grading were considered justified as standard clinical practice by the experts and the ESMO faculty.

Below are some highlights of the guidelines, which cover a wide array of topics regarding the diagnosis, staging, treatment, and progression of CLL disease.
 

Diagnosis

The guidelines indicate that CLL diagnosis is usually possible by immunophenotyping of peripheral blood only and that lymph node (LN) biopsy and/or bone marrow biopsy may be helpful if immunophenotyping is not conclusive for the diagnosis of CLL, according to Barbara Eichhorst, MD, of the University of Cologne (Germany) and colleagues on behalf of the ESMO guidelines committee.

Staging and risk assessment

Early asymptomatic-stage disease does not need further risk assessment, but after the first year, when all patients should be seen at 3-monthly intervals, patients can be followed every 3-12 months. The interval would depend on burden and dynamics of the disease obtained by the using history and physical examinations, including a careful palpation of all LN areas, spleen, and liver, as well as assessing complete blood cell count and differential count, according to the report.

Advanced- and symptomatic-stage disease requires a broader examination including imaging, history and status of relevant infections, and fluorescent in situ hybridization (FISH) assays for the detection of deletion of the chromosome 17 (del[17p]) affecting the tumor protein p53 expression and, in the absence of del(17p), TP53 sequencing for detection of TP53 gene mutation, according to the authors.

Prognostication

Two clinical staging systems are typically used in CLL. Both Binet and Rai staging systems separate three groups of patients with different prognosis, although “as a consequence of more effective therapy, the overall survival (OS) of patients with advanced stage has improved and the relevance of the staging systems for prognostication has decreased,” according to the report.

The recent addition of genetic markers has also proved highly relevant to identifying patients with different prognoses and to guide treatment.
 

Therapy

Although CLL is an incurable disease, choice and application of treatment are strongly tied to the length of survival, according to the authors. The guidelines recommend Binet and Rai staging with clinical symptoms as relevant for treatment indication. In addition, the identification of del(17p), TP53 mutations, and IGHV status are relevant for choice of therapy and should be assessed prior to treatment.

The guidelines discuss specific treatment modalities for various stages of the disease, from early stages to relapse.

For frontline therapy, different treatment strategies are available including continuous treatment with Bruton tyrosine kinase (BTK)–inhibitors, such as ibrutinib, until progression or time-limited therapy with ChT backbone and CD20 antibodies. In addition, the Food and Drug Administration and European Medicines Agency have recently approved the combination of venetoclax plus obinutuzumab for first-line therapy of CLL.

Treatment decisions should include an assessment of IGHV and TP53 status, as well as patient-related factors such as comedication, comorbidities, preferences, drug availability, and potential of treatment adherence, according to the guidelines.

In case of symptomatic relapse within 3 years after fixed-duration therapy or nonresponse to therapy, the guidelines recommend that the therapeutic regimen should be changed, regardless of the type of first-line either to venetoclax plus rituximab for 24 months or to ibrutinib, acalabrutinib, or other BTK inhibitors (if available) as continuous therapy.

The guidelines also discuss the possible roles for hematopoietic stem cell transplantation and cellular therapies, as well as the treatment of the various complications that can arise in patients with CLL, and dealing with various aspects of disease progression.

No external funds were provided for the production of the guidelines. The authors of the report and members of the ESMO Guidelines Committee reported numerous disclosures regarding pharmaceutical and biotechnology companies.

[email protected]

SOURCE: Eichhorst B et al. Ann Oncol. 2020 Oct 19. doi: 10.1016/j.annonc.2020.09.019.

An updated European Society for Medical Oncology (ESMO) clinical practice guidelines were released to provide key recommendations on the management of chronic lymphocytic leukemia (CLL).

The guidelines were developed by a multidisciplinary group of experts from different institutions and countries in Europe and provide levels of evidence and grades of recommendation where applicable for issues regarding prognosis and treatment decisions in CLL. Such decisions depend on genetic and clinical factors such as age, stage, and comorbidities. The guidelines also focus on new therapies targeting B-cell-receptor pathways or defect mechanism of apoptosis, which have been found to induce long-lasting remissions. The guidelines were endorsed by the European Hematology Association (EHA) through the Scientific Working Group on CLL/European Research Initiative on CLL (ERIC), according to the report published online the Annals of Oncology.

These clinical practice guidelines were developed in accordance with the ESMO standard operating procedures for clinical practice guidelines development with use of relevant literature selected by the expert authors. Statements without grading were considered justified as standard clinical practice by the experts and the ESMO faculty.

Below are some highlights of the guidelines, which cover a wide array of topics regarding the diagnosis, staging, treatment, and progression of CLL disease.
 

Diagnosis

The guidelines indicate that CLL diagnosis is usually possible by immunophenotyping of peripheral blood only and that lymph node (LN) biopsy and/or bone marrow biopsy may be helpful if immunophenotyping is not conclusive for the diagnosis of CLL, according to Barbara Eichhorst, MD, of the University of Cologne (Germany) and colleagues on behalf of the ESMO guidelines committee.

Staging and risk assessment

Early asymptomatic-stage disease does not need further risk assessment, but after the first year, when all patients should be seen at 3-monthly intervals, patients can be followed every 3-12 months. The interval would depend on burden and dynamics of the disease obtained by the using history and physical examinations, including a careful palpation of all LN areas, spleen, and liver, as well as assessing complete blood cell count and differential count, according to the report.

Advanced- and symptomatic-stage disease requires a broader examination including imaging, history and status of relevant infections, and fluorescent in situ hybridization (FISH) assays for the detection of deletion of the chromosome 17 (del[17p]) affecting the tumor protein p53 expression and, in the absence of del(17p), TP53 sequencing for detection of TP53 gene mutation, according to the authors.

Prognostication

Two clinical staging systems are typically used in CLL. Both Binet and Rai staging systems separate three groups of patients with different prognosis, although “as a consequence of more effective therapy, the overall survival (OS) of patients with advanced stage has improved and the relevance of the staging systems for prognostication has decreased,” according to the report.

The recent addition of genetic markers has also proved highly relevant to identifying patients with different prognoses and to guide treatment.
 

Therapy

Although CLL is an incurable disease, choice and application of treatment are strongly tied to the length of survival, according to the authors. The guidelines recommend Binet and Rai staging with clinical symptoms as relevant for treatment indication. In addition, the identification of del(17p), TP53 mutations, and IGHV status are relevant for choice of therapy and should be assessed prior to treatment.

The guidelines discuss specific treatment modalities for various stages of the disease, from early stages to relapse.

For frontline therapy, different treatment strategies are available including continuous treatment with Bruton tyrosine kinase (BTK)–inhibitors, such as ibrutinib, until progression or time-limited therapy with ChT backbone and CD20 antibodies. In addition, the Food and Drug Administration and European Medicines Agency have recently approved the combination of venetoclax plus obinutuzumab for first-line therapy of CLL.

Treatment decisions should include an assessment of IGHV and TP53 status, as well as patient-related factors such as comedication, comorbidities, preferences, drug availability, and potential of treatment adherence, according to the guidelines.

In case of symptomatic relapse within 3 years after fixed-duration therapy or nonresponse to therapy, the guidelines recommend that the therapeutic regimen should be changed, regardless of the type of first-line either to venetoclax plus rituximab for 24 months or to ibrutinib, acalabrutinib, or other BTK inhibitors (if available) as continuous therapy.

The guidelines also discuss the possible roles for hematopoietic stem cell transplantation and cellular therapies, as well as the treatment of the various complications that can arise in patients with CLL, and dealing with various aspects of disease progression.

No external funds were provided for the production of the guidelines. The authors of the report and members of the ESMO Guidelines Committee reported numerous disclosures regarding pharmaceutical and biotechnology companies.

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SOURCE: Eichhorst B et al. Ann Oncol. 2020 Oct 19. doi: 10.1016/j.annonc.2020.09.019.