Lung Cancer

From 7% to nearly 9% of patients with advanced cancer were found to harbor a germline variant with targeted therapeutic actionability in the first study of its kind.

The study involved 11,974 patients with various tumor types. All the patients underwent germline genetic testing from 2015 to 2019 at the Memorial Sloan Kettering Cancer Center (MSKCC) in New York, using the next-generation sequencing panel MSK-IMPACT.

This testing showed that 17.1% of patients had variants in cancer predisposition genes, and 7.1%-8.6% had variants that could potentially be targeted.

“Of course, these numbers are not static,” commented lead author Zsofia K. Stadler, MD, a medical oncologist at MSKCC. “And with the emergence of novel targeted treatments with new FDA indications, the therapeutic actionability of germline variants is likely to increase over time.

“Our study demonstrates the first comprehensive assessment of the clinical utility of germline alterations for therapeutic actionability in a population of patients with advanced cancer,” she added.

Dr. Stadler presented the study results during a virtual scientific program of the American Society of Clinical Oncology 2020.

Testing for somatic mutations is evolving as the standard of care in many cancer types, and somatic genomic testing is rapidly becoming an integral part of the regimen for patients with advanced disease. Some studies suggest that 9%-11% of patients harbor actionable genetic alterations, as determined on the basis of tumor profiling.

“The take-home message from this is that now, more than ever before, germline testing is indicated for the selection of cancer treatment,” said Erin Wysong Hofstatter, MD, from Yale University, New Haven, Conn., in a Highlights of the Day session.

An emerging indication for germline testing is the selection of treatment in the advanced setting, she noted. “And it is important to know your test. Remember that tumor sequencing is not a substitute for comprehensive germline testing.”
 

Implications in cancer treatment

For their study, Dr. Stadler and colleagues reviewed the medical records of patients with likely pathogenic/pathogenic germline (LP/P) alterations in genes that had known therapeutic targets so as to identify germline-targeted treatment either in a clinical or research setting.

“Since 2015, patients undergoing MSK-IMPACT may also choose to provide additional consent for secondary germline genetic analysis, wherein up to 88 genes known to be associated with cancer predisposition are analyzed,” she said. “Likely pathogenic and pathogenic germline alterations identified are disclosed to the patient and treating physician via the Clinical Genetic Service.”

A total of 2043 (17.1%) patients who harbored LP/P variants in a cancer predisposition gene were identified. Of these, 11% of patients harbored pathogenic alterations in high or moderate penetrance cancer predisposition genes. When the analysis was limited to genes with targeted therapeutic actionability, or what the authors defined as tier 1 and tier 2 genes, 7.1% of patients (n = 849) harbored a targetable pathogenic germline alteration.

BRCA alterations accounted for half (52%) of the findings, and 20% were associated with Lynch syndrome.

The tier 2 genes, which included PALB2, ATM, RAD51C, and RAD51D, accounted for about a quarter of the findings. Dr. Hofstatter noted that, using strict criteria, 7.1% of patients (n = 849) were found to harbor a pathogenic alteration and a targetable gene. Using less stringent criteria, additional tier 3 genes and additional genes associated with DNA homologous recombination repair brought the number up to 8.6% (n = 1,003).

Therapeutic action

For determining therapeutic actionability, the strict criteria were used; 593 patients (4.95%) with recurrent or metastatic disease were identified. For these patients, consideration of a targeted therapy, either as part of standard care or as part of an investigation or research protocol, was important.

Of this group, 44% received therapy targeting the germline alteration. Regarding specific genes, 50% of BRCA1/2 carriers and 58% of Lynch syndrome patients received targeted treatment. With respect to tier 2 genes, 40% of patients with PALB2, 19% with ATM, and 37% with RAD51C or 51D received a poly (ADP-ribose) polymerase (PARP) inhibitor.

Among patients with a BRCA1/2 mutation who received a PARP inhibitor, 55.1% had breast or ovarian cancer, and 44.8% had other tumor types, including pancreas, prostate, bile duct, gastric cancers. These patients received the drug in a research setting.

For patients with PALB2 alterations who received PARP inhibitors, 53.3% had breast or pancreas cancer, and 46.7% had cancer of the prostate, ovary, or an unknown primary.

Looking ahead

The discussant for the paper, Funda Meric-Bernstam, MD, chair of the Department of Investigational Cancer Therapeutics at the University of Texas MD Anderson Cancer Center, Houston, pointed out that most of the BRCA-positive patients had cancers traditionally associated with the mutation. “There were no patients with PTEN mutations treated, and interestingly, no patients with NF1 were treated,” she said. “But actionability is evolving, as the MEK inhibitor selumitinib was recently approved for NF1.”

Some questions remain unanswered, she noted, such as: “What percentage of patients undergoing tumor-normal testing signed a germline protocol?” and “Does the population introduce a bias – such as younger patients, family history, and so on?”

It is also unknown what percentage of germline alterations were known in comparison with those identified through tumor/normal testing. Also of importance is the fact that in this study, the results of germline testing were delivered in an academic setting, she emphasized. “What if they were delivered elsewhere? What would be the impact of identifying these alterations in an environment with less access to trials?

“But to be fair, it is not easy to seek the germline mutations,” Dr. Meric-Bernstam continued. “These studies were done under institutional review board protocols, and it is important to note that most profiling is done as standard of care without consenting and soliciting patient preference on the return of germline results.”

An infrastructure is needed to return/counsel/offer cascade testing, and “analyses need to be facilitated to ensure that findings can be acted upon in a timely fashion,” she added.

The study was supported by MSKCC internal funding. Dr. Stadler reported relationships (institutional) with Adverum, Alimera Sciences, Allergan, Biomarin, Fortress Biotech, Genentech/Roche, Novartis, Optos, Regeneron, Regenxbio, and Spark Therapeutics. Dr. Meric-Bernstram reported relationships with numerous pharmaceutical companies.

This article first appeared on Medscape.com.

From 7% to nearly 9% of patients with advanced cancer were found to harbor a germline variant with targeted therapeutic actionability in the first study of its kind.

The study involved 11,974 patients with various tumor types. All the patients underwent germline genetic testing from 2015 to 2019 at the Memorial Sloan Kettering Cancer Center (MSKCC) in New York, using the next-generation sequencing panel MSK-IMPACT.

This testing showed that 17.1% of patients had variants in cancer predisposition genes, and 7.1%-8.6% had variants that could potentially be targeted.

“Of course, these numbers are not static,” commented lead author Zsofia K. Stadler, MD, a medical oncologist at MSKCC. “And with the emergence of novel targeted treatments with new FDA indications, the therapeutic actionability of germline variants is likely to increase over time.

“Our study demonstrates the first comprehensive assessment of the clinical utility of germline alterations for therapeutic actionability in a population of patients with advanced cancer,” she added.

Dr. Stadler presented the study results during a virtual scientific program of the American Society of Clinical Oncology 2020.

Testing for somatic mutations is evolving as the standard of care in many cancer types, and somatic genomic testing is rapidly becoming an integral part of the regimen for patients with advanced disease. Some studies suggest that 9%-11% of patients harbor actionable genetic alterations, as determined on the basis of tumor profiling.

“The take-home message from this is that now, more than ever before, germline testing is indicated for the selection of cancer treatment,” said Erin Wysong Hofstatter, MD, from Yale University, New Haven, Conn., in a Highlights of the Day session.

An emerging indication for germline testing is the selection of treatment in the advanced setting, she noted. “And it is important to know your test. Remember that tumor sequencing is not a substitute for comprehensive germline testing.”
 

Implications in cancer treatment

For their study, Dr. Stadler and colleagues reviewed the medical records of patients with likely pathogenic/pathogenic germline (LP/P) alterations in genes that had known therapeutic targets so as to identify germline-targeted treatment either in a clinical or research setting.

“Since 2015, patients undergoing MSK-IMPACT may also choose to provide additional consent for secondary germline genetic analysis, wherein up to 88 genes known to be associated with cancer predisposition are analyzed,” she said. “Likely pathogenic and pathogenic germline alterations identified are disclosed to the patient and treating physician via the Clinical Genetic Service.”

A total of 2043 (17.1%) patients who harbored LP/P variants in a cancer predisposition gene were identified. Of these, 11% of patients harbored pathogenic alterations in high or moderate penetrance cancer predisposition genes. When the analysis was limited to genes with targeted therapeutic actionability, or what the authors defined as tier 1 and tier 2 genes, 7.1% of patients (n = 849) harbored a targetable pathogenic germline alteration.

BRCA alterations accounted for half (52%) of the findings, and 20% were associated with Lynch syndrome.

The tier 2 genes, which included PALB2, ATM, RAD51C, and RAD51D, accounted for about a quarter of the findings. Dr. Hofstatter noted that, using strict criteria, 7.1% of patients (n = 849) were found to harbor a pathogenic alteration and a targetable gene. Using less stringent criteria, additional tier 3 genes and additional genes associated with DNA homologous recombination repair brought the number up to 8.6% (n = 1,003).

Therapeutic action

For determining therapeutic actionability, the strict criteria were used; 593 patients (4.95%) with recurrent or metastatic disease were identified. For these patients, consideration of a targeted therapy, either as part of standard care or as part of an investigation or research protocol, was important.

Of this group, 44% received therapy targeting the germline alteration. Regarding specific genes, 50% of BRCA1/2 carriers and 58% of Lynch syndrome patients received targeted treatment. With respect to tier 2 genes, 40% of patients with PALB2, 19% with ATM, and 37% with RAD51C or 51D received a poly (ADP-ribose) polymerase (PARP) inhibitor.

Among patients with a BRCA1/2 mutation who received a PARP inhibitor, 55.1% had breast or ovarian cancer, and 44.8% had other tumor types, including pancreas, prostate, bile duct, gastric cancers. These patients received the drug in a research setting.

For patients with PALB2 alterations who received PARP inhibitors, 53.3% had breast or pancreas cancer, and 46.7% had cancer of the prostate, ovary, or an unknown primary.

Looking ahead

The discussant for the paper, Funda Meric-Bernstam, MD, chair of the Department of Investigational Cancer Therapeutics at the University of Texas MD Anderson Cancer Center, Houston, pointed out that most of the BRCA-positive patients had cancers traditionally associated with the mutation. “There were no patients with PTEN mutations treated, and interestingly, no patients with NF1 were treated,” she said. “But actionability is evolving, as the MEK inhibitor selumitinib was recently approved for NF1.”

Some questions remain unanswered, she noted, such as: “What percentage of patients undergoing tumor-normal testing signed a germline protocol?” and “Does the population introduce a bias – such as younger patients, family history, and so on?”

It is also unknown what percentage of germline alterations were known in comparison with those identified through tumor/normal testing. Also of importance is the fact that in this study, the results of germline testing were delivered in an academic setting, she emphasized. “What if they were delivered elsewhere? What would be the impact of identifying these alterations in an environment with less access to trials?

“But to be fair, it is not easy to seek the germline mutations,” Dr. Meric-Bernstam continued. “These studies were done under institutional review board protocols, and it is important to note that most profiling is done as standard of care without consenting and soliciting patient preference on the return of germline results.”

An infrastructure is needed to return/counsel/offer cascade testing, and “analyses need to be facilitated to ensure that findings can be acted upon in a timely fashion,” she added.

The study was supported by MSKCC internal funding. Dr. Stadler reported relationships (institutional) with Adverum, Alimera Sciences, Allergan, Biomarin, Fortress Biotech, Genentech/Roche, Novartis, Optos, Regeneron, Regenxbio, and Spark Therapeutics. Dr. Meric-Bernstram reported relationships with numerous pharmaceutical companies.

This article first appeared on Medscape.com.

From 7% to nearly 9% of patients with advanced cancer were found to harbor a germline variant with targeted therapeutic actionability in the first study of its kind.

The study involved 11,974 patients with various tumor types. All the patients underwent germline genetic testing from 2015 to 2019 at the Memorial Sloan Kettering Cancer Center (MSKCC) in New York, using the next-generation sequencing panel MSK-IMPACT.

This testing showed that 17.1% of patients had variants in cancer predisposition genes, and 7.1%-8.6% had variants that could potentially be targeted.

“Of course, these numbers are not static,” commented lead author Zsofia K. Stadler, MD, a medical oncologist at MSKCC. “And with the emergence of novel targeted treatments with new FDA indications, the therapeutic actionability of germline variants is likely to increase over time.

“Our study demonstrates the first comprehensive assessment of the clinical utility of germline alterations for therapeutic actionability in a population of patients with advanced cancer,” she added.

Dr. Stadler presented the study results during a virtual scientific program of the American Society of Clinical Oncology 2020.

Testing for somatic mutations is evolving as the standard of care in many cancer types, and somatic genomic testing is rapidly becoming an integral part of the regimen for patients with advanced disease. Some studies suggest that 9%-11% of patients harbor actionable genetic alterations, as determined on the basis of tumor profiling.

“The take-home message from this is that now, more than ever before, germline testing is indicated for the selection of cancer treatment,” said Erin Wysong Hofstatter, MD, from Yale University, New Haven, Conn., in a Highlights of the Day session.

An emerging indication for germline testing is the selection of treatment in the advanced setting, she noted. “And it is important to know your test. Remember that tumor sequencing is not a substitute for comprehensive germline testing.”
 

Implications in cancer treatment

For their study, Dr. Stadler and colleagues reviewed the medical records of patients with likely pathogenic/pathogenic germline (LP/P) alterations in genes that had known therapeutic targets so as to identify germline-targeted treatment either in a clinical or research setting.

“Since 2015, patients undergoing MSK-IMPACT may also choose to provide additional consent for secondary germline genetic analysis, wherein up to 88 genes known to be associated with cancer predisposition are analyzed,” she said. “Likely pathogenic and pathogenic germline alterations identified are disclosed to the patient and treating physician via the Clinical Genetic Service.”

A total of 2043 (17.1%) patients who harbored LP/P variants in a cancer predisposition gene were identified. Of these, 11% of patients harbored pathogenic alterations in high or moderate penetrance cancer predisposition genes. When the analysis was limited to genes with targeted therapeutic actionability, or what the authors defined as tier 1 and tier 2 genes, 7.1% of patients (n = 849) harbored a targetable pathogenic germline alteration.

BRCA alterations accounted for half (52%) of the findings, and 20% were associated with Lynch syndrome.

The tier 2 genes, which included PALB2, ATM, RAD51C, and RAD51D, accounted for about a quarter of the findings. Dr. Hofstatter noted that, using strict criteria, 7.1% of patients (n = 849) were found to harbor a pathogenic alteration and a targetable gene. Using less stringent criteria, additional tier 3 genes and additional genes associated with DNA homologous recombination repair brought the number up to 8.6% (n = 1,003).

Therapeutic action

For determining therapeutic actionability, the strict criteria were used; 593 patients (4.95%) with recurrent or metastatic disease were identified. For these patients, consideration of a targeted therapy, either as part of standard care or as part of an investigation or research protocol, was important.

Of this group, 44% received therapy targeting the germline alteration. Regarding specific genes, 50% of BRCA1/2 carriers and 58% of Lynch syndrome patients received targeted treatment. With respect to tier 2 genes, 40% of patients with PALB2, 19% with ATM, and 37% with RAD51C or 51D received a poly (ADP-ribose) polymerase (PARP) inhibitor.

Among patients with a BRCA1/2 mutation who received a PARP inhibitor, 55.1% had breast or ovarian cancer, and 44.8% had other tumor types, including pancreas, prostate, bile duct, gastric cancers. These patients received the drug in a research setting.

For patients with PALB2 alterations who received PARP inhibitors, 53.3% had breast or pancreas cancer, and 46.7% had cancer of the prostate, ovary, or an unknown primary.

Looking ahead

The discussant for the paper, Funda Meric-Bernstam, MD, chair of the Department of Investigational Cancer Therapeutics at the University of Texas MD Anderson Cancer Center, Houston, pointed out that most of the BRCA-positive patients had cancers traditionally associated with the mutation. “There were no patients with PTEN mutations treated, and interestingly, no patients with NF1 were treated,” she said. “But actionability is evolving, as the MEK inhibitor selumitinib was recently approved for NF1.”

Some questions remain unanswered, she noted, such as: “What percentage of patients undergoing tumor-normal testing signed a germline protocol?” and “Does the population introduce a bias – such as younger patients, family history, and so on?”

It is also unknown what percentage of germline alterations were known in comparison with those identified through tumor/normal testing. Also of importance is the fact that in this study, the results of germline testing were delivered in an academic setting, she emphasized. “What if they were delivered elsewhere? What would be the impact of identifying these alterations in an environment with less access to trials?

“But to be fair, it is not easy to seek the germline mutations,” Dr. Meric-Bernstam continued. “These studies were done under institutional review board protocols, and it is important to note that most profiling is done as standard of care without consenting and soliciting patient preference on the return of germline results.”

An infrastructure is needed to return/counsel/offer cascade testing, and “analyses need to be facilitated to ensure that findings can be acted upon in a timely fashion,” she added.

The study was supported by MSKCC internal funding. Dr. Stadler reported relationships (institutional) with Adverum, Alimera Sciences, Allergan, Biomarin, Fortress Biotech, Genentech/Roche, Novartis, Optos, Regeneron, Regenxbio, and Spark Therapeutics. Dr. Meric-Bernstram reported relationships with numerous pharmaceutical companies.

This article first appeared on Medscape.com.

Poziotinib, a pan-EGFR inhibitor, shrank tumors in a majority of patients with previously treated non–small cell lung cancer and EGFR exon 20 insertion mutations, but most of these patients did not achieve a response in the ongoing phase 2 ZENITH20 study.

The overall response rate (ORR) in the 115 patients was 14.8%, according to Xiuning Le, MD, PhD, of MD Anderson Cancer Center in Houston, who reported these results at the AACR virtual meeting I.

The ORR fell short of the greater than 17% required to meet the primary endpoint, but 65% of patients experienced tumor shrinkage, Dr. Le noted.

Overall, 17 patients had a confirmed partial response, 5 had an unconfirmed partial response, and 62 had stable disease, for a disease control rate of 68.7%.

Responses occurred early and were durable, Dr. Le said. The median duration of response was 7.4 months.

Responses were also consistent across subgroups based on the number of prior lines of therapy and prior EGFR tyrosine kinase inhibitor (TKI) therapy.

The median progression-free survival was 4.2 months.
 

Patients, treatment, and safety

The patients, who were enrolled in the first cohort of the ZENITH20 study, had a median age of 61 years. They had received a median of two prior therapies, with most having received both chemotherapy and immunotherapy.

Poziotinib was given at a once-daily dose of 16 mg for 28-day cycles, with follow-up of 24 months. Dose reductions were allowed for adverse events (AEs).

AEs were on target and consistent with EGFR TKI class effects. The most common AEs were rash, diarrhea, stomatitis, and paronychia.

Grade 3 AEs included rash (28%) and diarrhea (25%). No grade 5 treatment-related AEs occurred.

Dose reductions were common, occurring in 68% of patients. The median relative poziotinib dose intensity was 72%, suggesting that response can be maintained at lower dose levels, Dr. Le said.

Drug interruptions were also common, occurring in 88% of patients. Ten percent of patients discontinued treatment permanently, Dr. Le said, noting that this is consistent with findings in prior large trials of second-generation TKIs.
 

Implications

The results of this study are of note because EGFR is a known driver of NSCLC, Dr. Le said. She explained that, while effective treatments exist for more common EGFR mutations, such as the classic sensitizing exon 21 mutation L858R and exon 19 deletion, no approved targeted therapies are available for the approximately 10% of lung cancer patients whose tumors harbor EGFR exon 20 insertions.

“Those EGFR exon 20 insertions are not sensitive to most of the approved EGFR inhibitors,” Dr. Le said. She noted that, in one study, the median progression-free survival following treatment with an approved agent was 14 months in patients with classical mutations, compared with 2 months in those with exon 20 insertions.

The difference is attributable to molecular structural differences. Exon 20 insertions create a smaller and more shallow EGFR protein interaction surface, Dr. Le explained. “So some of the approved inhibitors don’t fit well into the oncogenic molecule,” she said.

Poziotinib has a small size and shape that can fit into the binding pocket of exon 20, and that, along with its mechanism of action, made it a promising candidate for this population, Dr. Le said. She referenced a study of 44 patients at MD Anderson Cancer Center in which poziotinib produced an ORR of 43%.

In the current study, “[p]oziotinib has further demonstrated clinical activity in previously treated lung cancer patients with EGFR exon 20 insertions ... with a toxicity profile similar to that of other second-generation TKIs,” she said.

The findings underscore the promise of EGFR exon 20 insertions as targets for therapeutic intervention, said invited discussant Taofeek Owonikoko, MD, PhD, of Winship Cancer Institute of Emory University in Atlanta.

“Poziotinib showed modest but meaningful efficacy,” he said. “However, its safety remains a challenge. It is expected that ongoing modifications in the dosing schedule will make it a more tolerable agent.”

“Future studies to systematically explore differential sensitivity of various exon 20 insertion mutations by location will be informative, as will [elucidation of] mechanisms of resistance to prioritize combinatorial strategies to further enhance the efficacy of this drug,” Dr. Owonikoko added.
 

Next steps

Analyses of other cohorts in the ZENITH20 trial will be reported at upcoming conferences as the data mature, Dr. Le noted. Cohorts 2-4 include patients with previously treated HER2 exon 20 insertions and treatment-naive patients with EGFR and HER2 exon 20 insertions, respectively.

Additionally, three new cohorts are being added, including one with patients who have EGFR or HER2 exon 20 insertions, one with EGFR patients who failed prior osimertinib treatment, and one with patients who have atypical EGFR or HER2 mutations.

Rather than the once-daily dosing used in cohorts 1-4, twice-daily dosing will be evaluated in these cohorts, Dr. Le said, explaining that the half-life of poziotinib is about 8 hours.

“Recent pharmacological modeling showed that a [twice-daily] regimen would reduce the maximal serum concentration and increase trough, which could lead to optimized drug coverage,” she said. “This may potentially reduce toxicity and improve patient compliance and efficacy.”

ZENITH20 is sponsored by Spectrum Pharmaceuticals Inc. Dr. Le disclosed relationships with Spectrum as well as Eli Lilly, AstraZeneca, EMD Serono, and Boehringer Ingelheim. Dr. Owonikoko disclosed relationships with many companies, not including Spectrum.

sworcester@mdedge.com

SOURCE: Le X et al. AACR 2020, Abstract CT081.

Poziotinib, a pan-EGFR inhibitor, shrank tumors in a majority of patients with previously treated non–small cell lung cancer and EGFR exon 20 insertion mutations, but most of these patients did not achieve a response in the ongoing phase 2 ZENITH20 study.

The overall response rate (ORR) in the 115 patients was 14.8%, according to Xiuning Le, MD, PhD, of MD Anderson Cancer Center in Houston, who reported these results at the AACR virtual meeting I.

The ORR fell short of the greater than 17% required to meet the primary endpoint, but 65% of patients experienced tumor shrinkage, Dr. Le noted.

Overall, 17 patients had a confirmed partial response, 5 had an unconfirmed partial response, and 62 had stable disease, for a disease control rate of 68.7%.

Responses occurred early and were durable, Dr. Le said. The median duration of response was 7.4 months.

Responses were also consistent across subgroups based on the number of prior lines of therapy and prior EGFR tyrosine kinase inhibitor (TKI) therapy.

The median progression-free survival was 4.2 months.
 

Patients, treatment, and safety

The patients, who were enrolled in the first cohort of the ZENITH20 study, had a median age of 61 years. They had received a median of two prior therapies, with most having received both chemotherapy and immunotherapy.

Poziotinib was given at a once-daily dose of 16 mg for 28-day cycles, with follow-up of 24 months. Dose reductions were allowed for adverse events (AEs).

AEs were on target and consistent with EGFR TKI class effects. The most common AEs were rash, diarrhea, stomatitis, and paronychia.

Grade 3 AEs included rash (28%) and diarrhea (25%). No grade 5 treatment-related AEs occurred.

Dose reductions were common, occurring in 68% of patients. The median relative poziotinib dose intensity was 72%, suggesting that response can be maintained at lower dose levels, Dr. Le said.

Drug interruptions were also common, occurring in 88% of patients. Ten percent of patients discontinued treatment permanently, Dr. Le said, noting that this is consistent with findings in prior large trials of second-generation TKIs.
 

Implications

The results of this study are of note because EGFR is a known driver of NSCLC, Dr. Le said. She explained that, while effective treatments exist for more common EGFR mutations, such as the classic sensitizing exon 21 mutation L858R and exon 19 deletion, no approved targeted therapies are available for the approximately 10% of lung cancer patients whose tumors harbor EGFR exon 20 insertions.

“Those EGFR exon 20 insertions are not sensitive to most of the approved EGFR inhibitors,” Dr. Le said. She noted that, in one study, the median progression-free survival following treatment with an approved agent was 14 months in patients with classical mutations, compared with 2 months in those with exon 20 insertions.

The difference is attributable to molecular structural differences. Exon 20 insertions create a smaller and more shallow EGFR protein interaction surface, Dr. Le explained. “So some of the approved inhibitors don’t fit well into the oncogenic molecule,” she said.

Poziotinib has a small size and shape that can fit into the binding pocket of exon 20, and that, along with its mechanism of action, made it a promising candidate for this population, Dr. Le said. She referenced a study of 44 patients at MD Anderson Cancer Center in which poziotinib produced an ORR of 43%.

In the current study, “[p]oziotinib has further demonstrated clinical activity in previously treated lung cancer patients with EGFR exon 20 insertions ... with a toxicity profile similar to that of other second-generation TKIs,” she said.

The findings underscore the promise of EGFR exon 20 insertions as targets for therapeutic intervention, said invited discussant Taofeek Owonikoko, MD, PhD, of Winship Cancer Institute of Emory University in Atlanta.

“Poziotinib showed modest but meaningful efficacy,” he said. “However, its safety remains a challenge. It is expected that ongoing modifications in the dosing schedule will make it a more tolerable agent.”

“Future studies to systematically explore differential sensitivity of various exon 20 insertion mutations by location will be informative, as will [elucidation of] mechanisms of resistance to prioritize combinatorial strategies to further enhance the efficacy of this drug,” Dr. Owonikoko added.
 

Next steps

Analyses of other cohorts in the ZENITH20 trial will be reported at upcoming conferences as the data mature, Dr. Le noted. Cohorts 2-4 include patients with previously treated HER2 exon 20 insertions and treatment-naive patients with EGFR and HER2 exon 20 insertions, respectively.

Additionally, three new cohorts are being added, including one with patients who have EGFR or HER2 exon 20 insertions, one with EGFR patients who failed prior osimertinib treatment, and one with patients who have atypical EGFR or HER2 mutations.

Rather than the once-daily dosing used in cohorts 1-4, twice-daily dosing will be evaluated in these cohorts, Dr. Le said, explaining that the half-life of poziotinib is about 8 hours.

“Recent pharmacological modeling showed that a [twice-daily] regimen would reduce the maximal serum concentration and increase trough, which could lead to optimized drug coverage,” she said. “This may potentially reduce toxicity and improve patient compliance and efficacy.”

ZENITH20 is sponsored by Spectrum Pharmaceuticals Inc. Dr. Le disclosed relationships with Spectrum as well as Eli Lilly, AstraZeneca, EMD Serono, and Boehringer Ingelheim. Dr. Owonikoko disclosed relationships with many companies, not including Spectrum.

sworcester@mdedge.com

SOURCE: Le X et al. AACR 2020, Abstract CT081.

Poziotinib, a pan-EGFR inhibitor, shrank tumors in a majority of patients with previously treated non–small cell lung cancer and EGFR exon 20 insertion mutations, but most of these patients did not achieve a response in the ongoing phase 2 ZENITH20 study.

The overall response rate (ORR) in the 115 patients was 14.8%, according to Xiuning Le, MD, PhD, of MD Anderson Cancer Center in Houston, who reported these results at the AACR virtual meeting I.

The ORR fell short of the greater than 17% required to meet the primary endpoint, but 65% of patients experienced tumor shrinkage, Dr. Le noted.

Overall, 17 patients had a confirmed partial response, 5 had an unconfirmed partial response, and 62 had stable disease, for a disease control rate of 68.7%.

Responses occurred early and were durable, Dr. Le said. The median duration of response was 7.4 months.

Responses were also consistent across subgroups based on the number of prior lines of therapy and prior EGFR tyrosine kinase inhibitor (TKI) therapy.

The median progression-free survival was 4.2 months.
 

Patients, treatment, and safety

The patients, who were enrolled in the first cohort of the ZENITH20 study, had a median age of 61 years. They had received a median of two prior therapies, with most having received both chemotherapy and immunotherapy.

Poziotinib was given at a once-daily dose of 16 mg for 28-day cycles, with follow-up of 24 months. Dose reductions were allowed for adverse events (AEs).

AEs were on target and consistent with EGFR TKI class effects. The most common AEs were rash, diarrhea, stomatitis, and paronychia.

Grade 3 AEs included rash (28%) and diarrhea (25%). No grade 5 treatment-related AEs occurred.

Dose reductions were common, occurring in 68% of patients. The median relative poziotinib dose intensity was 72%, suggesting that response can be maintained at lower dose levels, Dr. Le said.

Drug interruptions were also common, occurring in 88% of patients. Ten percent of patients discontinued treatment permanently, Dr. Le said, noting that this is consistent with findings in prior large trials of second-generation TKIs.
 

Implications

The results of this study are of note because EGFR is a known driver of NSCLC, Dr. Le said. She explained that, while effective treatments exist for more common EGFR mutations, such as the classic sensitizing exon 21 mutation L858R and exon 19 deletion, no approved targeted therapies are available for the approximately 10% of lung cancer patients whose tumors harbor EGFR exon 20 insertions.

“Those EGFR exon 20 insertions are not sensitive to most of the approved EGFR inhibitors,” Dr. Le said. She noted that, in one study, the median progression-free survival following treatment with an approved agent was 14 months in patients with classical mutations, compared with 2 months in those with exon 20 insertions.

The difference is attributable to molecular structural differences. Exon 20 insertions create a smaller and more shallow EGFR protein interaction surface, Dr. Le explained. “So some of the approved inhibitors don’t fit well into the oncogenic molecule,” she said.

Poziotinib has a small size and shape that can fit into the binding pocket of exon 20, and that, along with its mechanism of action, made it a promising candidate for this population, Dr. Le said. She referenced a study of 44 patients at MD Anderson Cancer Center in which poziotinib produced an ORR of 43%.

In the current study, “[p]oziotinib has further demonstrated clinical activity in previously treated lung cancer patients with EGFR exon 20 insertions ... with a toxicity profile similar to that of other second-generation TKIs,” she said.

The findings underscore the promise of EGFR exon 20 insertions as targets for therapeutic intervention, said invited discussant Taofeek Owonikoko, MD, PhD, of Winship Cancer Institute of Emory University in Atlanta.

“Poziotinib showed modest but meaningful efficacy,” he said. “However, its safety remains a challenge. It is expected that ongoing modifications in the dosing schedule will make it a more tolerable agent.”

“Future studies to systematically explore differential sensitivity of various exon 20 insertion mutations by location will be informative, as will [elucidation of] mechanisms of resistance to prioritize combinatorial strategies to further enhance the efficacy of this drug,” Dr. Owonikoko added.
 

Next steps

Analyses of other cohorts in the ZENITH20 trial will be reported at upcoming conferences as the data mature, Dr. Le noted. Cohorts 2-4 include patients with previously treated HER2 exon 20 insertions and treatment-naive patients with EGFR and HER2 exon 20 insertions, respectively.

Additionally, three new cohorts are being added, including one with patients who have EGFR or HER2 exon 20 insertions, one with EGFR patients who failed prior osimertinib treatment, and one with patients who have atypical EGFR or HER2 mutations.

Rather than the once-daily dosing used in cohorts 1-4, twice-daily dosing will be evaluated in these cohorts, Dr. Le said, explaining that the half-life of poziotinib is about 8 hours.

“Recent pharmacological modeling showed that a [twice-daily] regimen would reduce the maximal serum concentration and increase trough, which could lead to optimized drug coverage,” she said. “This may potentially reduce toxicity and improve patient compliance and efficacy.”

ZENITH20 is sponsored by Spectrum Pharmaceuticals Inc. Dr. Le disclosed relationships with Spectrum as well as Eli Lilly, AstraZeneca, EMD Serono, and Boehringer Ingelheim. Dr. Owonikoko disclosed relationships with many companies, not including Spectrum.

sworcester@mdedge.com

SOURCE: Le X et al. AACR 2020, Abstract CT081.

The Food and Drug Administration has approved ramucirumab (Cyramza) in combination with erlotinib for the first-line treatment of metastatic non–small cell lung cancer (NSCLC) with EGFR exon 19 deletions or exon 21 mutations.

The approval was supported by results from the phase 3 RELAY trial (Lancet Oncol. 2019 Dec;20[12]:1655-69). The trial enrolled 449 patients with previously untreated, EGFR-mutated, metastatic NSCLC.



Patients received either ramucirumab at 10 mg/kg or placebo every 2 weeks as an intravenous infusion in combination with erlotinib at 150 mg orally once daily. Patients continued treatment until they progressed or developed unacceptable toxicity. The median progression-free survival was 19.4 months in the ramucirumab-erlotinib arm, compared with 12.4 months in the placebo-erlotinib arm (hazard ratio, 0.59; 95% confidence interval, 0.46-0.76; P < .0001). The overall response rate was 76% in the ramucirumab arm and 75% in the placebo arm. The median duration of response was 18.0 months and 11.1 months, respectively. Overall survival data were not mature at the final analysis.

Adverse events that were more common in the ramucirumab arm were infections, hypertension, stomatitis, proteinuria, alopecia, epistaxis, and peripheral edema. Full prescribing information is available on the FDA website.

lfranki@mdedge.com

The Food and Drug Administration has approved ramucirumab (Cyramza) in combination with erlotinib for the first-line treatment of metastatic non–small cell lung cancer (NSCLC) with EGFR exon 19 deletions or exon 21 mutations.

The approval was supported by results from the phase 3 RELAY trial (Lancet Oncol. 2019 Dec;20[12]:1655-69). The trial enrolled 449 patients with previously untreated, EGFR-mutated, metastatic NSCLC.



Patients received either ramucirumab at 10 mg/kg or placebo every 2 weeks as an intravenous infusion in combination with erlotinib at 150 mg orally once daily. Patients continued treatment until they progressed or developed unacceptable toxicity. The median progression-free survival was 19.4 months in the ramucirumab-erlotinib arm, compared with 12.4 months in the placebo-erlotinib arm (hazard ratio, 0.59; 95% confidence interval, 0.46-0.76; P < .0001). The overall response rate was 76% in the ramucirumab arm and 75% in the placebo arm. The median duration of response was 18.0 months and 11.1 months, respectively. Overall survival data were not mature at the final analysis.

Adverse events that were more common in the ramucirumab arm were infections, hypertension, stomatitis, proteinuria, alopecia, epistaxis, and peripheral edema. Full prescribing information is available on the FDA website.

lfranki@mdedge.com

The Food and Drug Administration has approved ramucirumab (Cyramza) in combination with erlotinib for the first-line treatment of metastatic non–small cell lung cancer (NSCLC) with EGFR exon 19 deletions or exon 21 mutations.

The approval was supported by results from the phase 3 RELAY trial (Lancet Oncol. 2019 Dec;20[12]:1655-69). The trial enrolled 449 patients with previously untreated, EGFR-mutated, metastatic NSCLC.



Patients received either ramucirumab at 10 mg/kg or placebo every 2 weeks as an intravenous infusion in combination with erlotinib at 150 mg orally once daily. Patients continued treatment until they progressed or developed unacceptable toxicity. The median progression-free survival was 19.4 months in the ramucirumab-erlotinib arm, compared with 12.4 months in the placebo-erlotinib arm (hazard ratio, 0.59; 95% confidence interval, 0.46-0.76; P < .0001). The overall response rate was 76% in the ramucirumab arm and 75% in the placebo arm. The median duration of response was 18.0 months and 11.1 months, respectively. Overall survival data were not mature at the final analysis.

Adverse events that were more common in the ramucirumab arm were infections, hypertension, stomatitis, proteinuria, alopecia, epistaxis, and peripheral edema. Full prescribing information is available on the FDA website.

lfranki@mdedge.com

Among patients with HER2-mutated non–small cell lung cancer (NSCLC) in an ongoing phase 2 trial, treatment with trastuzumab deruxtecan (T-DXd) has yielded a high response rate, and the median duration of response has not yet been reached, an investigator reported.

The overall response rate (ORR) exceeded 60% among these heavily pretreated patients, with an estimated median progression-free survival (PFS) of 14 months, according to Egbert F. Smit, MD, PhD, of the Netherlands Cancer Institute.

Interstitial lung disease is an identified risk associated with T-DXd treatment, though the events in the DESTINY-Lung01 trial have been low-grade and have not resulted in any deaths, Dr. Smit said when presenting results from the trial as part of the American Society of Clinical Oncology virtual scientific program.

“These data demonstrate the potential of T-DXd as a new treatment option for patients with HER2-mutated non–small-cell lung cancer,” Dr. Smit said.
 

‘A good targeted therapy’

The findings are a “nice early confirmation” of the initial results seen with T-DXd in an earlier, smaller, phase 1 population, said invited discussant Grace K. Dy, MD, of Roswell Park Comprehensive Cancer Center in Buffalo, N.Y.

“Trastuzumab-DXd showed clinical outcomes that meet the standards of what we expect a good targeted therapy should have in terms of overall response rate and progression free survival,” Dr. Dy said.

She noted that the ORR in DESTINY-Lung01 exceeds a 23% ORR seen among NSCLC patients treated with dual HER2-targeted therapy – trastuzumab plus pertuzumab – in a basket trial (J Clin Oncol. 2018 Feb 20;36[6]:536-42). Moreover, the response and PFS data “far surpass” results seen to date with oral tyrosine kinase inhibitors, including pyrotinib, poziotinib, neratinib, and afatinib.

The T-DXd results also look favorable in comparison to another antibody-drug conjugate, ado trastuzumab emtansine, Dr. Dy added, referencing another basket trial in which investigators reported an ORR of 44% and a median PFS of 5 months among 18 patients with advanced HER2-mutant lung adenocarcinomas (J Clin Oncol. 2018 Aug 20;36[24]:2532-7).

“Although T-DM1 [ado trastuzumab emtansine] demonstrated some degree of activity, its lower dosing, which was limited by the payload, lower drug-antibody ratio, and shorter half-life likely explain why results were better with T-DXd,” Dr. Dy said.

T-DXd was, in fact, designed to deliver an optimal antitumor effect, according to Dr. Smit.

The treatment incorporates a humanized anti-HER2 IgG1 monoclonal antibody that has the same amino acid sequence as trastuzumab. The antibody is attached via a cleavable, tumor-selective linker to a payload of deruxtecan, a topoisomerase I inhibitor.

The resulting antibody-drug conjugate has a high drug-to-antibody ratio, with 8 DXd molecules per monoclonal antibody, according to Dr. Smit.

Study details

The DESTINY-Lung01 trial included 42 patients with HER2-mutated NSCLC who received T-DXd at a dose of 6.4 mg/kg every 3 weeks. The patients’ median age was 63 years, and about 64% were female. Eastern Cooperative Oncology Group performance status was 0 in about one-quarter of the patients, and 1 in the remainder.

Patients had received up to six prior lines of treatment, including platinum-based chemotherapy in about 91%, a PD-1 or PD-L1 inhibitor in 55%, and docetaxel in 19%.

The confirmed ORR by independent central review was 61.9% (26/42). That included a single complete response (2.4%) and 25 partial responses (59.5%).

The duration of response was not reached (95% CI, 5.3 months to not estimable), and the median PFS was 14.0 months (95% CI, 6.4-14.0 months).

All patients experienced a treatment-related adverse event. Treatment-related events of grade 3 or greater were seen in 22 patients (52%). These mainly included decreased neutrophil count, anemia, nausea, vomiting, and fatigue.

There were five cases of interstitial lung disease, all of which were grade 2. In four cases, T-DXd was withdrawn. In one case, the drug was interrupted. All patients were treated with steroids.

“Two [patients] recovered, one recovered with sequelae, one was recovering, and one had not recovered by data cutoff,” Dr. Smit said.

DESTINY-Lung01 also includes a cohort of patients with HER2-expressing NSCLC not reported at the meeting. Enrollment in the HER2-mutated cohort that was reported has been expanded with another 50 patients to “better characterize the risk-benefit ratio,” Dr. Smit said.

The DESTINY-Lung01 study is sponsored by Daiichi Sankyo Inc. Dr. Smit reported relationships with Daiichi Sankyo and many other companies. Dr. Dy reported disclosures related to Amgen, AstraZeneca/Medimmune, GlaxoSmithKline, Takeda, and Tesaro.

SOURCE: Smit EF et al. ASCO 2020, Abstract 9504.

Among patients with HER2-mutated non–small cell lung cancer (NSCLC) in an ongoing phase 2 trial, treatment with trastuzumab deruxtecan (T-DXd) has yielded a high response rate, and the median duration of response has not yet been reached, an investigator reported.

The overall response rate (ORR) exceeded 60% among these heavily pretreated patients, with an estimated median progression-free survival (PFS) of 14 months, according to Egbert F. Smit, MD, PhD, of the Netherlands Cancer Institute.

Interstitial lung disease is an identified risk associated with T-DXd treatment, though the events in the DESTINY-Lung01 trial have been low-grade and have not resulted in any deaths, Dr. Smit said when presenting results from the trial as part of the American Society of Clinical Oncology virtual scientific program.

“These data demonstrate the potential of T-DXd as a new treatment option for patients with HER2-mutated non–small-cell lung cancer,” Dr. Smit said.
 

‘A good targeted therapy’

The findings are a “nice early confirmation” of the initial results seen with T-DXd in an earlier, smaller, phase 1 population, said invited discussant Grace K. Dy, MD, of Roswell Park Comprehensive Cancer Center in Buffalo, N.Y.

“Trastuzumab-DXd showed clinical outcomes that meet the standards of what we expect a good targeted therapy should have in terms of overall response rate and progression free survival,” Dr. Dy said.

She noted that the ORR in DESTINY-Lung01 exceeds a 23% ORR seen among NSCLC patients treated with dual HER2-targeted therapy – trastuzumab plus pertuzumab – in a basket trial (J Clin Oncol. 2018 Feb 20;36[6]:536-42). Moreover, the response and PFS data “far surpass” results seen to date with oral tyrosine kinase inhibitors, including pyrotinib, poziotinib, neratinib, and afatinib.

The T-DXd results also look favorable in comparison to another antibody-drug conjugate, ado trastuzumab emtansine, Dr. Dy added, referencing another basket trial in which investigators reported an ORR of 44% and a median PFS of 5 months among 18 patients with advanced HER2-mutant lung adenocarcinomas (J Clin Oncol. 2018 Aug 20;36[24]:2532-7).

“Although T-DM1 [ado trastuzumab emtansine] demonstrated some degree of activity, its lower dosing, which was limited by the payload, lower drug-antibody ratio, and shorter half-life likely explain why results were better with T-DXd,” Dr. Dy said.

T-DXd was, in fact, designed to deliver an optimal antitumor effect, according to Dr. Smit.

The treatment incorporates a humanized anti-HER2 IgG1 monoclonal antibody that has the same amino acid sequence as trastuzumab. The antibody is attached via a cleavable, tumor-selective linker to a payload of deruxtecan, a topoisomerase I inhibitor.

The resulting antibody-drug conjugate has a high drug-to-antibody ratio, with 8 DXd molecules per monoclonal antibody, according to Dr. Smit.

Study details

The DESTINY-Lung01 trial included 42 patients with HER2-mutated NSCLC who received T-DXd at a dose of 6.4 mg/kg every 3 weeks. The patients’ median age was 63 years, and about 64% were female. Eastern Cooperative Oncology Group performance status was 0 in about one-quarter of the patients, and 1 in the remainder.

Patients had received up to six prior lines of treatment, including platinum-based chemotherapy in about 91%, a PD-1 or PD-L1 inhibitor in 55%, and docetaxel in 19%.

The confirmed ORR by independent central review was 61.9% (26/42). That included a single complete response (2.4%) and 25 partial responses (59.5%).

The duration of response was not reached (95% CI, 5.3 months to not estimable), and the median PFS was 14.0 months (95% CI, 6.4-14.0 months).

All patients experienced a treatment-related adverse event. Treatment-related events of grade 3 or greater were seen in 22 patients (52%). These mainly included decreased neutrophil count, anemia, nausea, vomiting, and fatigue.

There were five cases of interstitial lung disease, all of which were grade 2. In four cases, T-DXd was withdrawn. In one case, the drug was interrupted. All patients were treated with steroids.

“Two [patients] recovered, one recovered with sequelae, one was recovering, and one had not recovered by data cutoff,” Dr. Smit said.

DESTINY-Lung01 also includes a cohort of patients with HER2-expressing NSCLC not reported at the meeting. Enrollment in the HER2-mutated cohort that was reported has been expanded with another 50 patients to “better characterize the risk-benefit ratio,” Dr. Smit said.

The DESTINY-Lung01 study is sponsored by Daiichi Sankyo Inc. Dr. Smit reported relationships with Daiichi Sankyo and many other companies. Dr. Dy reported disclosures related to Amgen, AstraZeneca/Medimmune, GlaxoSmithKline, Takeda, and Tesaro.

SOURCE: Smit EF et al. ASCO 2020, Abstract 9504.

Among patients with HER2-mutated non–small cell lung cancer (NSCLC) in an ongoing phase 2 trial, treatment with trastuzumab deruxtecan (T-DXd) has yielded a high response rate, and the median duration of response has not yet been reached, an investigator reported.

The overall response rate (ORR) exceeded 60% among these heavily pretreated patients, with an estimated median progression-free survival (PFS) of 14 months, according to Egbert F. Smit, MD, PhD, of the Netherlands Cancer Institute.

Interstitial lung disease is an identified risk associated with T-DXd treatment, though the events in the DESTINY-Lung01 trial have been low-grade and have not resulted in any deaths, Dr. Smit said when presenting results from the trial as part of the American Society of Clinical Oncology virtual scientific program.

“These data demonstrate the potential of T-DXd as a new treatment option for patients with HER2-mutated non–small-cell lung cancer,” Dr. Smit said.
 

‘A good targeted therapy’

The findings are a “nice early confirmation” of the initial results seen with T-DXd in an earlier, smaller, phase 1 population, said invited discussant Grace K. Dy, MD, of Roswell Park Comprehensive Cancer Center in Buffalo, N.Y.

“Trastuzumab-DXd showed clinical outcomes that meet the standards of what we expect a good targeted therapy should have in terms of overall response rate and progression free survival,” Dr. Dy said.

She noted that the ORR in DESTINY-Lung01 exceeds a 23% ORR seen among NSCLC patients treated with dual HER2-targeted therapy – trastuzumab plus pertuzumab – in a basket trial (J Clin Oncol. 2018 Feb 20;36[6]:536-42). Moreover, the response and PFS data “far surpass” results seen to date with oral tyrosine kinase inhibitors, including pyrotinib, poziotinib, neratinib, and afatinib.

The T-DXd results also look favorable in comparison to another antibody-drug conjugate, ado trastuzumab emtansine, Dr. Dy added, referencing another basket trial in which investigators reported an ORR of 44% and a median PFS of 5 months among 18 patients with advanced HER2-mutant lung adenocarcinomas (J Clin Oncol. 2018 Aug 20;36[24]:2532-7).

“Although T-DM1 [ado trastuzumab emtansine] demonstrated some degree of activity, its lower dosing, which was limited by the payload, lower drug-antibody ratio, and shorter half-life likely explain why results were better with T-DXd,” Dr. Dy said.

T-DXd was, in fact, designed to deliver an optimal antitumor effect, according to Dr. Smit.

The treatment incorporates a humanized anti-HER2 IgG1 monoclonal antibody that has the same amino acid sequence as trastuzumab. The antibody is attached via a cleavable, tumor-selective linker to a payload of deruxtecan, a topoisomerase I inhibitor.

The resulting antibody-drug conjugate has a high drug-to-antibody ratio, with 8 DXd molecules per monoclonal antibody, according to Dr. Smit.

Study details

The DESTINY-Lung01 trial included 42 patients with HER2-mutated NSCLC who received T-DXd at a dose of 6.4 mg/kg every 3 weeks. The patients’ median age was 63 years, and about 64% were female. Eastern Cooperative Oncology Group performance status was 0 in about one-quarter of the patients, and 1 in the remainder.

Patients had received up to six prior lines of treatment, including platinum-based chemotherapy in about 91%, a PD-1 or PD-L1 inhibitor in 55%, and docetaxel in 19%.

The confirmed ORR by independent central review was 61.9% (26/42). That included a single complete response (2.4%) and 25 partial responses (59.5%).

The duration of response was not reached (95% CI, 5.3 months to not estimable), and the median PFS was 14.0 months (95% CI, 6.4-14.0 months).

All patients experienced a treatment-related adverse event. Treatment-related events of grade 3 or greater were seen in 22 patients (52%). These mainly included decreased neutrophil count, anemia, nausea, vomiting, and fatigue.

There were five cases of interstitial lung disease, all of which were grade 2. In four cases, T-DXd was withdrawn. In one case, the drug was interrupted. All patients were treated with steroids.

“Two [patients] recovered, one recovered with sequelae, one was recovering, and one had not recovered by data cutoff,” Dr. Smit said.

DESTINY-Lung01 also includes a cohort of patients with HER2-expressing NSCLC not reported at the meeting. Enrollment in the HER2-mutated cohort that was reported has been expanded with another 50 patients to “better characterize the risk-benefit ratio,” Dr. Smit said.

The DESTINY-Lung01 study is sponsored by Daiichi Sankyo Inc. Dr. Smit reported relationships with Daiichi Sankyo and many other companies. Dr. Dy reported disclosures related to Amgen, AstraZeneca/Medimmune, GlaxoSmithKline, Takeda, and Tesaro.

SOURCE: Smit EF et al. ASCO 2020, Abstract 9504.

While nivolumab plus doublet chemotherapy was effective in extensive-stage small-cell lung cancer (ES-SCLC) in a recent randomized trial, the results might not be sufficient to change current clinical practice, in which two first-line chemo-immunotherapies are already approved and recommended, sources said.

Nivolumab added to platinum/etoposide doublet chemotherapy was well tolerated and significantly improved progression-free survival (PFS) and overall survival (OS) compared to chemotherapy alone, according to results of ECOG-ACRIN EA5161, a randomized, phase 2 trial including 160 patients with ES-SCLC.

Risks of progression and death were reduced by 32% and 27%, respectively, when the immune checkpoint inhibitor was given along with chemotherapy, according to data presented by investigator Ticiana A. Leal, MD, of the University of Wisconsin Carbone Cancer Center in Madison.

“Our study, EA5161, confirms the efficacy of nivolumab in extensive-stage small cell lung cancer,” Dr. Leal said in a presentation she gave as part of the American Society of Clinical Oncology virtual scientific program.

Nivolumab did demonstrate a clear PFS advantage in EA5161, but “more surprisingly for a small trial” it also showed a clear OS advantage, said Taofeek K. Owonikoko, MD, PhD, in a commentary on the study.

“While the study as currently reported is insufficient to change practice, it does however provide very strong data to make the combination of nivolumab and platinum doublet acceptable as a platform for future clinical trials,” he said in the commentary, which was also included in the virtual ASCO proceedings.

Going forward, it would be difficult to justify another nondefinitive randomized phase 2 chemo-immunotherapy trial, especially if there are no “immediate plans” for a confirmatory phase 3 trial, added Dr. Owonikoko, who is director of thoracic oncology at Winship Cancer Institute of Emory University in Atlanta.

Nivolumab wasn’t the only immune checkpoint with new first-line data in ES-SCLC at ASCO. In the randomized, double-blind, phase 3 KEYNOTE-604 trial, pembrolizumab added to etoposide and platinum significantly prolonged PFS and showed a trend toward improved OS. However, the significance threshold for OS was missed, according to the report.

While these pembrolizumab data are also insufficient to change today’s practice standards, results for both the pembrolizumab- and nivolumab-containing regimens are nevertheless compelling to support their use as a platform for new treatment strategies, according to Dr. Owonikoko.

With these new ASCO data, there are now randomized data confirming a benefit of immune checkpoint inhibitor–based regimens in ES-SCLC, according to Lauren A. Byers, MD, from the department of thoracic/head and neck medical oncology at The University of Texas MD Anderson Cancer Center in Houston.

Immune checkpoint inhibitors that are approved by the Food and Drug Administration for first-line treatment of ES-SCLC include atezolizumab (in combination with carboplatin and etoposide) and durvalumab (in combination with either carboplatin or cisplatin plus etoposide). In current National Comprehensive Cancer Network (NCCN) guidelines, both are described as “preferred” regimens for primary or adjuvant therapy.

“A lot of times in oncology we have trials with similar drugs, and you get somewhat different answers in terms of the outcome of the trials, so we’re kind of trying to tease them apart,” Dr. Byers said in an interview.

“I think in this situation, we’ve got four studies, and they essentially are extremely similar in terms of the result, which just gives us even more confidence that there is benefit, at least for a subset of patients.”

The EA5161 study was developed to evaluate the role of nivolumab in ES-SCLC, Dr. Leal said in her virtual ASCO presentation.

Of the 160 patients enrolled and randomized, 145 were eligible and treated, including 75 in the nivolumab plus chemotherapy arm and 70 in the chemotherapy arm. Participants were evenly split between performance status 0 and 1, and little more than half of patients were women, and a median of five treatment cycles were delivered in each arm.

Median PFS, the primary end point of the trial, was 5.5 months for nivolumab plus chemotherapy versus 4.7 months for chemotherapy alone for all eligible and treated patients (hazard ratio, 0.68; 95% confidence interval, 0.48-1.00; P = .047). In the intent-to-treat population, median PFS was 5.5 and 4.6 months in the respective arms (HR, 0.65; 95% CI, 0.46-0.91; P = .012).

Median overall survival was 11.3 months and 9.3 months for the nivolumab plus chemotherapy and chemotherapy-only arms, respectively, for all eligible and treated patients (HR, 0.73; 95% CI, 0.49-1.1), and in the intent-to-treat population, median OS was 11.3 and 8.5 months for the respective arms (HR, 0.67; 95% CI, 0.46-0.98; P = .038).

The overall response rate was 52% for nivolumab plus chemotherapy and 47% for chemotherapy alone, with a median duration of response of 5.6 and 3.3 months, respectively, Dr. Leal reported.

Treatment was generally well tolerated in both arms, according to the investigator, with no safety signals observed. Toxicities resulting in death occurred in nine patients in the nivolumab plus chemotherapy arm and seven in the chemotherapy-only arm. “Most of the events were related to progression of disease,” Dr. Leal said.

While nivolumab and pembrolizumab’s use in the first-line setting may be uncertain, it is currently approved for metastatic SCLC that has progressed following platinum-based chemotherapy and at least one more line of therapy, according to the drug’s package insert.

The EA5161 study was sponsored by the National Cancer Institute. Dr. Leal provided disclosures related to AbbVie, AstraZeneca, Bayer, BeyondSpring, Bristol-Myers Squibb, Genentech, InvisionFirst Lung, Merck, Mirati, Novocure, and Takeda.

Dr. Owonikoko provided disclosures related to Bristol-Myers Squibb, Novartis, Celgene, Lilly, Sandoz, AbbVie, Eisai, and Takeda, among others. Dr. Byers reported disclosures related to Bristol-Myers Squibb, AstraZeneca, AbbVie, GenMab, PharmaMar, and Sierra Oncology, Tolero, Alethia, Merck, Jazz Pharmaceuticals, and Pfizer.

SOURCE: Leal TA et al. ASCO 2020, Abstract 9000.

While nivolumab plus doublet chemotherapy was effective in extensive-stage small-cell lung cancer (ES-SCLC) in a recent randomized trial, the results might not be sufficient to change current clinical practice, in which two first-line chemo-immunotherapies are already approved and recommended, sources said.

Nivolumab added to platinum/etoposide doublet chemotherapy was well tolerated and significantly improved progression-free survival (PFS) and overall survival (OS) compared to chemotherapy alone, according to results of ECOG-ACRIN EA5161, a randomized, phase 2 trial including 160 patients with ES-SCLC.

Risks of progression and death were reduced by 32% and 27%, respectively, when the immune checkpoint inhibitor was given along with chemotherapy, according to data presented by investigator Ticiana A. Leal, MD, of the University of Wisconsin Carbone Cancer Center in Madison.

“Our study, EA5161, confirms the efficacy of nivolumab in extensive-stage small cell lung cancer,” Dr. Leal said in a presentation she gave as part of the American Society of Clinical Oncology virtual scientific program.

Nivolumab did demonstrate a clear PFS advantage in EA5161, but “more surprisingly for a small trial” it also showed a clear OS advantage, said Taofeek K. Owonikoko, MD, PhD, in a commentary on the study.

“While the study as currently reported is insufficient to change practice, it does however provide very strong data to make the combination of nivolumab and platinum doublet acceptable as a platform for future clinical trials,” he said in the commentary, which was also included in the virtual ASCO proceedings.

Going forward, it would be difficult to justify another nondefinitive randomized phase 2 chemo-immunotherapy trial, especially if there are no “immediate plans” for a confirmatory phase 3 trial, added Dr. Owonikoko, who is director of thoracic oncology at Winship Cancer Institute of Emory University in Atlanta.

Nivolumab wasn’t the only immune checkpoint with new first-line data in ES-SCLC at ASCO. In the randomized, double-blind, phase 3 KEYNOTE-604 trial, pembrolizumab added to etoposide and platinum significantly prolonged PFS and showed a trend toward improved OS. However, the significance threshold for OS was missed, according to the report.

While these pembrolizumab data are also insufficient to change today’s practice standards, results for both the pembrolizumab- and nivolumab-containing regimens are nevertheless compelling to support their use as a platform for new treatment strategies, according to Dr. Owonikoko.

With these new ASCO data, there are now randomized data confirming a benefit of immune checkpoint inhibitor–based regimens in ES-SCLC, according to Lauren A. Byers, MD, from the department of thoracic/head and neck medical oncology at The University of Texas MD Anderson Cancer Center in Houston.

Immune checkpoint inhibitors that are approved by the Food and Drug Administration for first-line treatment of ES-SCLC include atezolizumab (in combination with carboplatin and etoposide) and durvalumab (in combination with either carboplatin or cisplatin plus etoposide). In current National Comprehensive Cancer Network (NCCN) guidelines, both are described as “preferred” regimens for primary or adjuvant therapy.

“A lot of times in oncology we have trials with similar drugs, and you get somewhat different answers in terms of the outcome of the trials, so we’re kind of trying to tease them apart,” Dr. Byers said in an interview.

“I think in this situation, we’ve got four studies, and they essentially are extremely similar in terms of the result, which just gives us even more confidence that there is benefit, at least for a subset of patients.”

The EA5161 study was developed to evaluate the role of nivolumab in ES-SCLC, Dr. Leal said in her virtual ASCO presentation.

Of the 160 patients enrolled and randomized, 145 were eligible and treated, including 75 in the nivolumab plus chemotherapy arm and 70 in the chemotherapy arm. Participants were evenly split between performance status 0 and 1, and little more than half of patients were women, and a median of five treatment cycles were delivered in each arm.

Median PFS, the primary end point of the trial, was 5.5 months for nivolumab plus chemotherapy versus 4.7 months for chemotherapy alone for all eligible and treated patients (hazard ratio, 0.68; 95% confidence interval, 0.48-1.00; P = .047). In the intent-to-treat population, median PFS was 5.5 and 4.6 months in the respective arms (HR, 0.65; 95% CI, 0.46-0.91; P = .012).

Median overall survival was 11.3 months and 9.3 months for the nivolumab plus chemotherapy and chemotherapy-only arms, respectively, for all eligible and treated patients (HR, 0.73; 95% CI, 0.49-1.1), and in the intent-to-treat population, median OS was 11.3 and 8.5 months for the respective arms (HR, 0.67; 95% CI, 0.46-0.98; P = .038).

The overall response rate was 52% for nivolumab plus chemotherapy and 47% for chemotherapy alone, with a median duration of response of 5.6 and 3.3 months, respectively, Dr. Leal reported.

Treatment was generally well tolerated in both arms, according to the investigator, with no safety signals observed. Toxicities resulting in death occurred in nine patients in the nivolumab plus chemotherapy arm and seven in the chemotherapy-only arm. “Most of the events were related to progression of disease,” Dr. Leal said.

While nivolumab and pembrolizumab’s use in the first-line setting may be uncertain, it is currently approved for metastatic SCLC that has progressed following platinum-based chemotherapy and at least one more line of therapy, according to the drug’s package insert.

The EA5161 study was sponsored by the National Cancer Institute. Dr. Leal provided disclosures related to AbbVie, AstraZeneca, Bayer, BeyondSpring, Bristol-Myers Squibb, Genentech, InvisionFirst Lung, Merck, Mirati, Novocure, and Takeda.

Dr. Owonikoko provided disclosures related to Bristol-Myers Squibb, Novartis, Celgene, Lilly, Sandoz, AbbVie, Eisai, and Takeda, among others. Dr. Byers reported disclosures related to Bristol-Myers Squibb, AstraZeneca, AbbVie, GenMab, PharmaMar, and Sierra Oncology, Tolero, Alethia, Merck, Jazz Pharmaceuticals, and Pfizer.

SOURCE: Leal TA et al. ASCO 2020, Abstract 9000.

While nivolumab plus doublet chemotherapy was effective in extensive-stage small-cell lung cancer (ES-SCLC) in a recent randomized trial, the results might not be sufficient to change current clinical practice, in which two first-line chemo-immunotherapies are already approved and recommended, sources said.

Nivolumab added to platinum/etoposide doublet chemotherapy was well tolerated and significantly improved progression-free survival (PFS) and overall survival (OS) compared to chemotherapy alone, according to results of ECOG-ACRIN EA5161, a randomized, phase 2 trial including 160 patients with ES-SCLC.

Risks of progression and death were reduced by 32% and 27%, respectively, when the immune checkpoint inhibitor was given along with chemotherapy, according to data presented by investigator Ticiana A. Leal, MD, of the University of Wisconsin Carbone Cancer Center in Madison.

“Our study, EA5161, confirms the efficacy of nivolumab in extensive-stage small cell lung cancer,” Dr. Leal said in a presentation she gave as part of the American Society of Clinical Oncology virtual scientific program.

Nivolumab did demonstrate a clear PFS advantage in EA5161, but “more surprisingly for a small trial” it also showed a clear OS advantage, said Taofeek K. Owonikoko, MD, PhD, in a commentary on the study.

“While the study as currently reported is insufficient to change practice, it does however provide very strong data to make the combination of nivolumab and platinum doublet acceptable as a platform for future clinical trials,” he said in the commentary, which was also included in the virtual ASCO proceedings.

Going forward, it would be difficult to justify another nondefinitive randomized phase 2 chemo-immunotherapy trial, especially if there are no “immediate plans” for a confirmatory phase 3 trial, added Dr. Owonikoko, who is director of thoracic oncology at Winship Cancer Institute of Emory University in Atlanta.

Nivolumab wasn’t the only immune checkpoint with new first-line data in ES-SCLC at ASCO. In the randomized, double-blind, phase 3 KEYNOTE-604 trial, pembrolizumab added to etoposide and platinum significantly prolonged PFS and showed a trend toward improved OS. However, the significance threshold for OS was missed, according to the report.

While these pembrolizumab data are also insufficient to change today’s practice standards, results for both the pembrolizumab- and nivolumab-containing regimens are nevertheless compelling to support their use as a platform for new treatment strategies, according to Dr. Owonikoko.

With these new ASCO data, there are now randomized data confirming a benefit of immune checkpoint inhibitor–based regimens in ES-SCLC, according to Lauren A. Byers, MD, from the department of thoracic/head and neck medical oncology at The University of Texas MD Anderson Cancer Center in Houston.

Immune checkpoint inhibitors that are approved by the Food and Drug Administration for first-line treatment of ES-SCLC include atezolizumab (in combination with carboplatin and etoposide) and durvalumab (in combination with either carboplatin or cisplatin plus etoposide). In current National Comprehensive Cancer Network (NCCN) guidelines, both are described as “preferred” regimens for primary or adjuvant therapy.

“A lot of times in oncology we have trials with similar drugs, and you get somewhat different answers in terms of the outcome of the trials, so we’re kind of trying to tease them apart,” Dr. Byers said in an interview.

“I think in this situation, we’ve got four studies, and they essentially are extremely similar in terms of the result, which just gives us even more confidence that there is benefit, at least for a subset of patients.”

The EA5161 study was developed to evaluate the role of nivolumab in ES-SCLC, Dr. Leal said in her virtual ASCO presentation.

Of the 160 patients enrolled and randomized, 145 were eligible and treated, including 75 in the nivolumab plus chemotherapy arm and 70 in the chemotherapy arm. Participants were evenly split between performance status 0 and 1, and little more than half of patients were women, and a median of five treatment cycles were delivered in each arm.

Median PFS, the primary end point of the trial, was 5.5 months for nivolumab plus chemotherapy versus 4.7 months for chemotherapy alone for all eligible and treated patients (hazard ratio, 0.68; 95% confidence interval, 0.48-1.00; P = .047). In the intent-to-treat population, median PFS was 5.5 and 4.6 months in the respective arms (HR, 0.65; 95% CI, 0.46-0.91; P = .012).

Median overall survival was 11.3 months and 9.3 months for the nivolumab plus chemotherapy and chemotherapy-only arms, respectively, for all eligible and treated patients (HR, 0.73; 95% CI, 0.49-1.1), and in the intent-to-treat population, median OS was 11.3 and 8.5 months for the respective arms (HR, 0.67; 95% CI, 0.46-0.98; P = .038).

The overall response rate was 52% for nivolumab plus chemotherapy and 47% for chemotherapy alone, with a median duration of response of 5.6 and 3.3 months, respectively, Dr. Leal reported.

Treatment was generally well tolerated in both arms, according to the investigator, with no safety signals observed. Toxicities resulting in death occurred in nine patients in the nivolumab plus chemotherapy arm and seven in the chemotherapy-only arm. “Most of the events were related to progression of disease,” Dr. Leal said.

While nivolumab and pembrolizumab’s use in the first-line setting may be uncertain, it is currently approved for metastatic SCLC that has progressed following platinum-based chemotherapy and at least one more line of therapy, according to the drug’s package insert.

The EA5161 study was sponsored by the National Cancer Institute. Dr. Leal provided disclosures related to AbbVie, AstraZeneca, Bayer, BeyondSpring, Bristol-Myers Squibb, Genentech, InvisionFirst Lung, Merck, Mirati, Novocure, and Takeda.

Dr. Owonikoko provided disclosures related to Bristol-Myers Squibb, Novartis, Celgene, Lilly, Sandoz, AbbVie, Eisai, and Takeda, among others. Dr. Byers reported disclosures related to Bristol-Myers Squibb, AstraZeneca, AbbVie, GenMab, PharmaMar, and Sierra Oncology, Tolero, Alethia, Merck, Jazz Pharmaceuticals, and Pfizer.

SOURCE: Leal TA et al. ASCO 2020, Abstract 9000.

An international survey sent to clinicians who treat non–small cell lung cancer (NSCLC) has found that one-third were unaware of evidence-based guidelines that recommend targeted therapies when a driver mutation is identified.

Moreover, the majority of these clinicians believe that fewer than 50% of patients in their country undergo molecular testing, the same survey showed.

The survey was conducted by the International Association for the Study of Lung Cancer (IASLC); 2537 questionnaires from 102 countries were returned and analyzed.

It was published online May 20 in the Journal of Thoracic Oncology.

The results are concerning because “the risk of death for patients with NSCLC is substantially reduced when a gene alteration is identified and the available targeted therapy is administered,” the authors emphasize.

“Specific protocols to initiate reflex testing for guideline-recommended molecular markers would help providers consider molecular testing earlier and optimize tissue,” they suggest.
 

Surprised that clinicians were unaware of guidelines

“I was not surprised that we found suboptimal testing rates based on other research that has demonstrated the need to improve the quality of lung cancer in some areas,” corresponding author Matthew Smeltzer, PhD, University of Memphis, Tennessee, told Medscape Medical News in an email.

“However, I was surprised that so many respondents were unaware of guidelines,” he said.

The College of American Pathologists, IASLC, and Association for Molecular Pathology established evidence-based standards for the selection of NSCLC patients for molecular testing in 2013, and these guidelines were subsequently endorsed by the American Society of Clinical Oncology.

“We suspect that the level of access a provider has to targeted therapies does affect molecular testing rates,” Smeltzer acknowledged.
 

Molecular testing survey

“The survey included a seven-question introduction for all respondents and then divided respondents into one of three tracks,” the authors explain.

These tracks included respondents who requested tests and who treated patients (medical oncologists), those who analyzed and interpreted assays (pathologists), and those who acquired tissue samples (surgeons, pulmonologists, radiologists).

Countries were also grouped into five geographic regions — Asia, Europe, Latin America, United States, and Canada — and the rest of the world (ROW).

“Overall, respondents reported that molecular testing rates were lower than we would like but they were not satisfied with the current state of testing, and they reported higher testing rates in their own clinics,” Smeltzer noted.

However, when tests were ordered, “we found 99% of respondents in the requesting/treating track ordered tests for EGFR, 95% for ALK, 79% for ROS1, and < 50% ordered other tests,” the authors observe.

Indeed, EGFR, ALK, and ROS1 were the top three tests ordered across all regions, though less frequently so in the ROW, they add.

More than half of requesting/treating track respondents also order multiplex assays, although Latin America and the ROW did this less frequently than other regions.

Over 90% of respondents who perform or interpret assays indicated that they perform EGFR testing, while 83% of the same group do ALK testing; 69% tested for KRAS; 68% for BRAF, 64% for ROS1, and 56% for HER2. Fewer than half of them performed other tests.

Survey results also showed that EGFR, ALK, and KRAS are the top three tests performed across all regions, with no regional differences.

“Respondents also reported on the acquisition and testing of liquid biopsies,” survey authors point out.

Here, 87% of requesting/treating track respondents indicated that they “sometimes” request molecular testing on liquid biopsies, but the proportions of those who sometimes use liquid biopsy varied by region and were lowest in Latin America and the ROW.

A lower proportion of those who perform and interpret assays, at 69%, also offer tests on liquid biopsies, but this percentage, too, varied significantly by region, being the least frequently done in the United States and Canada, as well as in the ROW.

All the above tests are for genetic mutations or alterations that guide clinicians on use of targeted therapy directed at particular mutations, for example, drugs like erlotinib for EGFR and crizotinib for ALK.

However, immunotherapy with checkpoint inhibitors has also made a big impact on the treatment of NSCLC, and the use of these agents is sometimes guided by testing for programmed cell-death ligand (PD-L1).

PD-L1 is not a molecular marker per se, the authors note.

Nevertheless, “we found that 84% of respondents in the requesting/treating track ordered PD-L1 and 68% of respondents who perform or interpret assays report PD-L1 is offered in their own lab,” the authors observe.

Smeltzer commented that both approaches — targeted therapies and immunotherapy — have made inroads into the treatment of NSCLC, in some cases replacing chemotherapy.

He emphasized that “it is important to know if a specific oncogene driver is present before initiating immunotherapy treatment,” and noted that when tissue is sent out for both types of testing, the results for PD-L1 are usually available before the results for the full molecular testing panel are back.
 

Barriers to testing

“The most frequent barrier to molecular testing in every region was cost,” the survey authors note.

Insufficient amount of tumor cells was the main reason for molecular testing failures along with inadequate tissue quality.

The majority of respondents who order tests and treat patients were sure that the laboratories they use perform appropriate validation of molecular tests, while almost all of those who perform or interpret assays said they perform validation tests in their labs.

Only 30% of respondents who request tests and treat patients have access to molecular testing labs within their own institutions; the remaining respondents have to outsource testing completely or partially.

Most respondents who test and treat patients also have multidisciplinary tumor boards to discuss patients with NSCLC, but almost one quarter of the same group indicated their board met less than once a month.

“Turnaround time is a barrier to molecular testing across the world,” the authors continue, with 29% of those who request tests and treat patients reporting that it typically takes 10 days or more to receive molecular testing results.

Interestingly, the highest percentage of respondents who reported this long turnaround time were in North America.

Perhaps encouragingly, 41% of respondents who perform or interpret assays indicated they were dissatisfied with the condition of molecular testing in their country, although in this regard, the United States and Canada had the lowest rates of dissatisfaction.

In fact, 39% of those who request tests and treat patients ranked the conditions of molecular testing in their country as “average or below,” while 42% of respondents in the tissue acquisition track ranked the conditions of molecular testing as average or below, the worst rankings coming from Latin America and the ROW.

Low quality of tissue samples was another reason respondents expressed dissatisfaction with the current state of molecular testing in their country.

Smeltzer is a research consultant for the Association of Community Cancer Centers.

This article first appeared on Medscape.com.

An international survey sent to clinicians who treat non–small cell lung cancer (NSCLC) has found that one-third were unaware of evidence-based guidelines that recommend targeted therapies when a driver mutation is identified.

Moreover, the majority of these clinicians believe that fewer than 50% of patients in their country undergo molecular testing, the same survey showed.

The survey was conducted by the International Association for the Study of Lung Cancer (IASLC); 2537 questionnaires from 102 countries were returned and analyzed.

It was published online May 20 in the Journal of Thoracic Oncology.

The results are concerning because “the risk of death for patients with NSCLC is substantially reduced when a gene alteration is identified and the available targeted therapy is administered,” the authors emphasize.

“Specific protocols to initiate reflex testing for guideline-recommended molecular markers would help providers consider molecular testing earlier and optimize tissue,” they suggest.
 

Surprised that clinicians were unaware of guidelines

“I was not surprised that we found suboptimal testing rates based on other research that has demonstrated the need to improve the quality of lung cancer in some areas,” corresponding author Matthew Smeltzer, PhD, University of Memphis, Tennessee, told Medscape Medical News in an email.

“However, I was surprised that so many respondents were unaware of guidelines,” he said.

The College of American Pathologists, IASLC, and Association for Molecular Pathology established evidence-based standards for the selection of NSCLC patients for molecular testing in 2013, and these guidelines were subsequently endorsed by the American Society of Clinical Oncology.

“We suspect that the level of access a provider has to targeted therapies does affect molecular testing rates,” Smeltzer acknowledged.
 

Molecular testing survey

“The survey included a seven-question introduction for all respondents and then divided respondents into one of three tracks,” the authors explain.

These tracks included respondents who requested tests and who treated patients (medical oncologists), those who analyzed and interpreted assays (pathologists), and those who acquired tissue samples (surgeons, pulmonologists, radiologists).

Countries were also grouped into five geographic regions — Asia, Europe, Latin America, United States, and Canada — and the rest of the world (ROW).

“Overall, respondents reported that molecular testing rates were lower than we would like but they were not satisfied with the current state of testing, and they reported higher testing rates in their own clinics,” Smeltzer noted.

However, when tests were ordered, “we found 99% of respondents in the requesting/treating track ordered tests for EGFR, 95% for ALK, 79% for ROS1, and < 50% ordered other tests,” the authors observe.

Indeed, EGFR, ALK, and ROS1 were the top three tests ordered across all regions, though less frequently so in the ROW, they add.

More than half of requesting/treating track respondents also order multiplex assays, although Latin America and the ROW did this less frequently than other regions.

Over 90% of respondents who perform or interpret assays indicated that they perform EGFR testing, while 83% of the same group do ALK testing; 69% tested for KRAS; 68% for BRAF, 64% for ROS1, and 56% for HER2. Fewer than half of them performed other tests.

Survey results also showed that EGFR, ALK, and KRAS are the top three tests performed across all regions, with no regional differences.

“Respondents also reported on the acquisition and testing of liquid biopsies,” survey authors point out.

Here, 87% of requesting/treating track respondents indicated that they “sometimes” request molecular testing on liquid biopsies, but the proportions of those who sometimes use liquid biopsy varied by region and were lowest in Latin America and the ROW.

A lower proportion of those who perform and interpret assays, at 69%, also offer tests on liquid biopsies, but this percentage, too, varied significantly by region, being the least frequently done in the United States and Canada, as well as in the ROW.

All the above tests are for genetic mutations or alterations that guide clinicians on use of targeted therapy directed at particular mutations, for example, drugs like erlotinib for EGFR and crizotinib for ALK.

However, immunotherapy with checkpoint inhibitors has also made a big impact on the treatment of NSCLC, and the use of these agents is sometimes guided by testing for programmed cell-death ligand (PD-L1).

PD-L1 is not a molecular marker per se, the authors note.

Nevertheless, “we found that 84% of respondents in the requesting/treating track ordered PD-L1 and 68% of respondents who perform or interpret assays report PD-L1 is offered in their own lab,” the authors observe.

Smeltzer commented that both approaches — targeted therapies and immunotherapy — have made inroads into the treatment of NSCLC, in some cases replacing chemotherapy.

He emphasized that “it is important to know if a specific oncogene driver is present before initiating immunotherapy treatment,” and noted that when tissue is sent out for both types of testing, the results for PD-L1 are usually available before the results for the full molecular testing panel are back.
 

Barriers to testing

“The most frequent barrier to molecular testing in every region was cost,” the survey authors note.

Insufficient amount of tumor cells was the main reason for molecular testing failures along with inadequate tissue quality.

The majority of respondents who order tests and treat patients were sure that the laboratories they use perform appropriate validation of molecular tests, while almost all of those who perform or interpret assays said they perform validation tests in their labs.

Only 30% of respondents who request tests and treat patients have access to molecular testing labs within their own institutions; the remaining respondents have to outsource testing completely or partially.

Most respondents who test and treat patients also have multidisciplinary tumor boards to discuss patients with NSCLC, but almost one quarter of the same group indicated their board met less than once a month.

“Turnaround time is a barrier to molecular testing across the world,” the authors continue, with 29% of those who request tests and treat patients reporting that it typically takes 10 days or more to receive molecular testing results.

Interestingly, the highest percentage of respondents who reported this long turnaround time were in North America.

Perhaps encouragingly, 41% of respondents who perform or interpret assays indicated they were dissatisfied with the condition of molecular testing in their country, although in this regard, the United States and Canada had the lowest rates of dissatisfaction.

In fact, 39% of those who request tests and treat patients ranked the conditions of molecular testing in their country as “average or below,” while 42% of respondents in the tissue acquisition track ranked the conditions of molecular testing as average or below, the worst rankings coming from Latin America and the ROW.

Low quality of tissue samples was another reason respondents expressed dissatisfaction with the current state of molecular testing in their country.

Smeltzer is a research consultant for the Association of Community Cancer Centers.

This article first appeared on Medscape.com.

An international survey sent to clinicians who treat non–small cell lung cancer (NSCLC) has found that one-third were unaware of evidence-based guidelines that recommend targeted therapies when a driver mutation is identified.

Moreover, the majority of these clinicians believe that fewer than 50% of patients in their country undergo molecular testing, the same survey showed.

The survey was conducted by the International Association for the Study of Lung Cancer (IASLC); 2537 questionnaires from 102 countries were returned and analyzed.

It was published online May 20 in the Journal of Thoracic Oncology.

The results are concerning because “the risk of death for patients with NSCLC is substantially reduced when a gene alteration is identified and the available targeted therapy is administered,” the authors emphasize.

“Specific protocols to initiate reflex testing for guideline-recommended molecular markers would help providers consider molecular testing earlier and optimize tissue,” they suggest.
 

Surprised that clinicians were unaware of guidelines

“I was not surprised that we found suboptimal testing rates based on other research that has demonstrated the need to improve the quality of lung cancer in some areas,” corresponding author Matthew Smeltzer, PhD, University of Memphis, Tennessee, told Medscape Medical News in an email.

“However, I was surprised that so many respondents were unaware of guidelines,” he said.

The College of American Pathologists, IASLC, and Association for Molecular Pathology established evidence-based standards for the selection of NSCLC patients for molecular testing in 2013, and these guidelines were subsequently endorsed by the American Society of Clinical Oncology.

“We suspect that the level of access a provider has to targeted therapies does affect molecular testing rates,” Smeltzer acknowledged.
 

Molecular testing survey

“The survey included a seven-question introduction for all respondents and then divided respondents into one of three tracks,” the authors explain.

These tracks included respondents who requested tests and who treated patients (medical oncologists), those who analyzed and interpreted assays (pathologists), and those who acquired tissue samples (surgeons, pulmonologists, radiologists).

Countries were also grouped into five geographic regions — Asia, Europe, Latin America, United States, and Canada — and the rest of the world (ROW).

“Overall, respondents reported that molecular testing rates were lower than we would like but they were not satisfied with the current state of testing, and they reported higher testing rates in their own clinics,” Smeltzer noted.

However, when tests were ordered, “we found 99% of respondents in the requesting/treating track ordered tests for EGFR, 95% for ALK, 79% for ROS1, and < 50% ordered other tests,” the authors observe.

Indeed, EGFR, ALK, and ROS1 were the top three tests ordered across all regions, though less frequently so in the ROW, they add.

More than half of requesting/treating track respondents also order multiplex assays, although Latin America and the ROW did this less frequently than other regions.

Over 90% of respondents who perform or interpret assays indicated that they perform EGFR testing, while 83% of the same group do ALK testing; 69% tested for KRAS; 68% for BRAF, 64% for ROS1, and 56% for HER2. Fewer than half of them performed other tests.

Survey results also showed that EGFR, ALK, and KRAS are the top three tests performed across all regions, with no regional differences.

“Respondents also reported on the acquisition and testing of liquid biopsies,” survey authors point out.

Here, 87% of requesting/treating track respondents indicated that they “sometimes” request molecular testing on liquid biopsies, but the proportions of those who sometimes use liquid biopsy varied by region and were lowest in Latin America and the ROW.

A lower proportion of those who perform and interpret assays, at 69%, also offer tests on liquid biopsies, but this percentage, too, varied significantly by region, being the least frequently done in the United States and Canada, as well as in the ROW.

All the above tests are for genetic mutations or alterations that guide clinicians on use of targeted therapy directed at particular mutations, for example, drugs like erlotinib for EGFR and crizotinib for ALK.

However, immunotherapy with checkpoint inhibitors has also made a big impact on the treatment of NSCLC, and the use of these agents is sometimes guided by testing for programmed cell-death ligand (PD-L1).

PD-L1 is not a molecular marker per se, the authors note.

Nevertheless, “we found that 84% of respondents in the requesting/treating track ordered PD-L1 and 68% of respondents who perform or interpret assays report PD-L1 is offered in their own lab,” the authors observe.

Smeltzer commented that both approaches — targeted therapies and immunotherapy — have made inroads into the treatment of NSCLC, in some cases replacing chemotherapy.

He emphasized that “it is important to know if a specific oncogene driver is present before initiating immunotherapy treatment,” and noted that when tissue is sent out for both types of testing, the results for PD-L1 are usually available before the results for the full molecular testing panel are back.
 

Barriers to testing

“The most frequent barrier to molecular testing in every region was cost,” the survey authors note.

Insufficient amount of tumor cells was the main reason for molecular testing failures along with inadequate tissue quality.

The majority of respondents who order tests and treat patients were sure that the laboratories they use perform appropriate validation of molecular tests, while almost all of those who perform or interpret assays said they perform validation tests in their labs.

Only 30% of respondents who request tests and treat patients have access to molecular testing labs within their own institutions; the remaining respondents have to outsource testing completely or partially.

Most respondents who test and treat patients also have multidisciplinary tumor boards to discuss patients with NSCLC, but almost one quarter of the same group indicated their board met less than once a month.

“Turnaround time is a barrier to molecular testing across the world,” the authors continue, with 29% of those who request tests and treat patients reporting that it typically takes 10 days or more to receive molecular testing results.

Interestingly, the highest percentage of respondents who reported this long turnaround time were in North America.

Perhaps encouragingly, 41% of respondents who perform or interpret assays indicated they were dissatisfied with the condition of molecular testing in their country, although in this regard, the United States and Canada had the lowest rates of dissatisfaction.

In fact, 39% of those who request tests and treat patients ranked the conditions of molecular testing in their country as “average or below,” while 42% of respondents in the tissue acquisition track ranked the conditions of molecular testing as average or below, the worst rankings coming from Latin America and the ROW.

Low quality of tissue samples was another reason respondents expressed dissatisfaction with the current state of molecular testing in their country.

Smeltzer is a research consultant for the Association of Community Cancer Centers.

This article first appeared on Medscape.com.

Patients with COVID-19 and progressing cancer had a fivefold increase in the risk of 30-day mortality, compared with COVID-19–positive cancer patients who were in remission or had no evidence of cancer, according to data from the COVID-19 and Cancer Consortium (CCC19) registry.

Mongkolchon Akesin/Shutterstock

Other independent risk factors for death in patients with COVID-19 and cancer were older age, male sex, former smoking, number of comorbidities, Eastern Cooperative Oncology Group (ECOG) performance status of 2 or greater, and treatment with hydroxychloroquine plus azithromycin.

In fact, patients who received hydroxychloroquine and azithromycin had a nearly threefold higher risk of death than did patients who had not received the combination. However, this finding was of “uncertain validity due to a high risk of residual confounding; for example, patients receiving this combination were more likely to have severe disease or more likely to be hospitalized,” said Jeremy L. Warner, MD, of Vanderbilt University Medical Center in Nashville, Tennessee.

Dr. Warner presented these findings in an online press briefing. Additional findings from the CCC19 registry are set to be presented as part of the American Society of Clinical Oncology (ASCO) virtual scientific program. The findings were also published in The Lancet.

‘Severe impact’ in cancer patients

“For people with cancer, the impact of COVID-19 is especially severe, whether they have been exposed to the virus or not. Patients with cancer are typically older adults, often with other underlying conditions, and their immune systems may be suppressed by the cancer, or due to chemotherapy, radiation, or other treatment,” commented ASCO President Howard A. Burris III, MD, who moderated the press briefing but was not involved in the study of CCC19 registry data.

“ASCO members tell us that they have had to delay or modify treatment plans to reduce patients’ risk of infection, and we’re unclear what the impact of these changes will be. Delays in cancer screening and diagnosis are also a major concern,” Dr. Burris continued.

“This does confirm reports that have come out from other centers, including other parts of the world, where they have found that people who have cancer and COVID-19 have a worse outcome,” said Andrew T. Chan, MD, MPH, of Massachusetts General Hospital in Boston, who was not involved in the research.

Dr. Chan’s group has developed a COVID-19 symptom study app with the aim of defining whether people living with cancer are at increased risk for infections, in addition to whether cancer is an independent risk factor for COVID-19 severity or mortality.

“Using data from our app, we were able to show that people who reported living with cancer did have a higher risk of developing COVID and were more likely to be hospitalized related to COVID,” Dr. Chan said in an interview.
 

Study details

The CCC19 registry collects information from 104 participating institutions in the United States and Canada, as well as anonymous data from individuals in the United States, Argentina, Canada, the European Union, and the United Kingdom.

The sample of 928 patients Dr. Warner presented was evenly balanced by sex. The median age was 66 years, and 30% of patients were aged 75 years or older.

In all, 39% of patients were on active anticancer therapy, and 43% had measurable disease. Breast cancer was the most common diagnosis, followed by prostate cancer, gastrointestinal cancers, lymphomas, and thoracic cancers.

Two-thirds of the patients (68%) had an ECOG performance status of 0 or 1, 8% had a performance status of 2, and 5% a status of 3 or 4. The remaining patients had unknown performance status.

Slightly more than half of patients (52%) were never smokers, 37% were former smokers, and 5% were current smokers. The remaining 6% of patients had unknown smoking status.

At a median follow-up of 21 days, 121 patients (13%) had died. All deaths occurred within 30 days of COVID-19 diagnosis. Among patients who died, 78 were male, 64 were former smokers, 70 were aged 75 years or older, 41 had active stable or responding cancer, 25 had progressing cancer, and 42 had an ECOG performance status of 2 or higher.

In all, 466 patients were hospitalized, and 106 in this group (23%) died. Among the 132 patients admitted to an ICU, 50 (38%) died, including 27 patients aged 75 years or older, and 15 with an ECOG performance status of 2 or greater. Of the 116 patients who required intubation, 50 (43%) died, including 26 who were 75 years or older, and 11 who had a performance status of 2 or greater.

It’s early days yet, and a larger sample size with longer follow-up will be needed to get a more complete picture of how COVID-19 affects specific patient subsets over time, Dr. Warner said.

ASCO has established its own COVID-19 registry to collect both near-term and longitudinal data during the pandemic.

“We’ll be able to learn about both how the pandemic has impacted delivery of cancer care, as well as the longer-term effects of COVID-19 on cancer patients and understand what care approaches are working best,” said Richard L. Schilsky, MD, chief medical officer and executive vice president of ASCO, during the briefing.

The study of CCC19 registry data was supported in part by the National Institutes of Health and the American Cancer Society. Dr. Warner disclosed stock/ownership in HemOnc.org, consulting for IBM and Westat, and travel expenses from IBM. Dr. Burris, Dr. Schilsky, and Dr. Chan reported no disclosures relevant to the study.
 

SOURCE: Warner J L et al. ASCO 2020, Abstract LBA110.

Patients with COVID-19 and progressing cancer had a fivefold increase in the risk of 30-day mortality, compared with COVID-19–positive cancer patients who were in remission or had no evidence of cancer, according to data from the COVID-19 and Cancer Consortium (CCC19) registry.

Mongkolchon Akesin/Shutterstock

Other independent risk factors for death in patients with COVID-19 and cancer were older age, male sex, former smoking, number of comorbidities, Eastern Cooperative Oncology Group (ECOG) performance status of 2 or greater, and treatment with hydroxychloroquine plus azithromycin.

In fact, patients who received hydroxychloroquine and azithromycin had a nearly threefold higher risk of death than did patients who had not received the combination. However, this finding was of “uncertain validity due to a high risk of residual confounding; for example, patients receiving this combination were more likely to have severe disease or more likely to be hospitalized,” said Jeremy L. Warner, MD, of Vanderbilt University Medical Center in Nashville, Tennessee.

Dr. Warner presented these findings in an online press briefing. Additional findings from the CCC19 registry are set to be presented as part of the American Society of Clinical Oncology (ASCO) virtual scientific program. The findings were also published in The Lancet.

‘Severe impact’ in cancer patients

“For people with cancer, the impact of COVID-19 is especially severe, whether they have been exposed to the virus or not. Patients with cancer are typically older adults, often with other underlying conditions, and their immune systems may be suppressed by the cancer, or due to chemotherapy, radiation, or other treatment,” commented ASCO President Howard A. Burris III, MD, who moderated the press briefing but was not involved in the study of CCC19 registry data.

“ASCO members tell us that they have had to delay or modify treatment plans to reduce patients’ risk of infection, and we’re unclear what the impact of these changes will be. Delays in cancer screening and diagnosis are also a major concern,” Dr. Burris continued.

“This does confirm reports that have come out from other centers, including other parts of the world, where they have found that people who have cancer and COVID-19 have a worse outcome,” said Andrew T. Chan, MD, MPH, of Massachusetts General Hospital in Boston, who was not involved in the research.

Dr. Chan’s group has developed a COVID-19 symptom study app with the aim of defining whether people living with cancer are at increased risk for infections, in addition to whether cancer is an independent risk factor for COVID-19 severity or mortality.

“Using data from our app, we were able to show that people who reported living with cancer did have a higher risk of developing COVID and were more likely to be hospitalized related to COVID,” Dr. Chan said in an interview.
 

Study details

The CCC19 registry collects information from 104 participating institutions in the United States and Canada, as well as anonymous data from individuals in the United States, Argentina, Canada, the European Union, and the United Kingdom.

The sample of 928 patients Dr. Warner presented was evenly balanced by sex. The median age was 66 years, and 30% of patients were aged 75 years or older.

In all, 39% of patients were on active anticancer therapy, and 43% had measurable disease. Breast cancer was the most common diagnosis, followed by prostate cancer, gastrointestinal cancers, lymphomas, and thoracic cancers.

Two-thirds of the patients (68%) had an ECOG performance status of 0 or 1, 8% had a performance status of 2, and 5% a status of 3 or 4. The remaining patients had unknown performance status.

Slightly more than half of patients (52%) were never smokers, 37% were former smokers, and 5% were current smokers. The remaining 6% of patients had unknown smoking status.

At a median follow-up of 21 days, 121 patients (13%) had died. All deaths occurred within 30 days of COVID-19 diagnosis. Among patients who died, 78 were male, 64 were former smokers, 70 were aged 75 years or older, 41 had active stable or responding cancer, 25 had progressing cancer, and 42 had an ECOG performance status of 2 or higher.

In all, 466 patients were hospitalized, and 106 in this group (23%) died. Among the 132 patients admitted to an ICU, 50 (38%) died, including 27 patients aged 75 years or older, and 15 with an ECOG performance status of 2 or greater. Of the 116 patients who required intubation, 50 (43%) died, including 26 who were 75 years or older, and 11 who had a performance status of 2 or greater.

It’s early days yet, and a larger sample size with longer follow-up will be needed to get a more complete picture of how COVID-19 affects specific patient subsets over time, Dr. Warner said.

ASCO has established its own COVID-19 registry to collect both near-term and longitudinal data during the pandemic.

“We’ll be able to learn about both how the pandemic has impacted delivery of cancer care, as well as the longer-term effects of COVID-19 on cancer patients and understand what care approaches are working best,” said Richard L. Schilsky, MD, chief medical officer and executive vice president of ASCO, during the briefing.

The study of CCC19 registry data was supported in part by the National Institutes of Health and the American Cancer Society. Dr. Warner disclosed stock/ownership in HemOnc.org, consulting for IBM and Westat, and travel expenses from IBM. Dr. Burris, Dr. Schilsky, and Dr. Chan reported no disclosures relevant to the study.
 

SOURCE: Warner J L et al. ASCO 2020, Abstract LBA110.

Patients with COVID-19 and progressing cancer had a fivefold increase in the risk of 30-day mortality, compared with COVID-19–positive cancer patients who were in remission or had no evidence of cancer, according to data from the COVID-19 and Cancer Consortium (CCC19) registry.

Mongkolchon Akesin/Shutterstock

Other independent risk factors for death in patients with COVID-19 and cancer were older age, male sex, former smoking, number of comorbidities, Eastern Cooperative Oncology Group (ECOG) performance status of 2 or greater, and treatment with hydroxychloroquine plus azithromycin.

In fact, patients who received hydroxychloroquine and azithromycin had a nearly threefold higher risk of death than did patients who had not received the combination. However, this finding was of “uncertain validity due to a high risk of residual confounding; for example, patients receiving this combination were more likely to have severe disease or more likely to be hospitalized,” said Jeremy L. Warner, MD, of Vanderbilt University Medical Center in Nashville, Tennessee.

Dr. Warner presented these findings in an online press briefing. Additional findings from the CCC19 registry are set to be presented as part of the American Society of Clinical Oncology (ASCO) virtual scientific program. The findings were also published in The Lancet.

‘Severe impact’ in cancer patients

“For people with cancer, the impact of COVID-19 is especially severe, whether they have been exposed to the virus or not. Patients with cancer are typically older adults, often with other underlying conditions, and their immune systems may be suppressed by the cancer, or due to chemotherapy, radiation, or other treatment,” commented ASCO President Howard A. Burris III, MD, who moderated the press briefing but was not involved in the study of CCC19 registry data.

“ASCO members tell us that they have had to delay or modify treatment plans to reduce patients’ risk of infection, and we’re unclear what the impact of these changes will be. Delays in cancer screening and diagnosis are also a major concern,” Dr. Burris continued.

“This does confirm reports that have come out from other centers, including other parts of the world, where they have found that people who have cancer and COVID-19 have a worse outcome,” said Andrew T. Chan, MD, MPH, of Massachusetts General Hospital in Boston, who was not involved in the research.

Dr. Chan’s group has developed a COVID-19 symptom study app with the aim of defining whether people living with cancer are at increased risk for infections, in addition to whether cancer is an independent risk factor for COVID-19 severity or mortality.

“Using data from our app, we were able to show that people who reported living with cancer did have a higher risk of developing COVID and were more likely to be hospitalized related to COVID,” Dr. Chan said in an interview.
 

Study details

The CCC19 registry collects information from 104 participating institutions in the United States and Canada, as well as anonymous data from individuals in the United States, Argentina, Canada, the European Union, and the United Kingdom.

The sample of 928 patients Dr. Warner presented was evenly balanced by sex. The median age was 66 years, and 30% of patients were aged 75 years or older.

In all, 39% of patients were on active anticancer therapy, and 43% had measurable disease. Breast cancer was the most common diagnosis, followed by prostate cancer, gastrointestinal cancers, lymphomas, and thoracic cancers.

Two-thirds of the patients (68%) had an ECOG performance status of 0 or 1, 8% had a performance status of 2, and 5% a status of 3 or 4. The remaining patients had unknown performance status.

Slightly more than half of patients (52%) were never smokers, 37% were former smokers, and 5% were current smokers. The remaining 6% of patients had unknown smoking status.

At a median follow-up of 21 days, 121 patients (13%) had died. All deaths occurred within 30 days of COVID-19 diagnosis. Among patients who died, 78 were male, 64 were former smokers, 70 were aged 75 years or older, 41 had active stable or responding cancer, 25 had progressing cancer, and 42 had an ECOG performance status of 2 or higher.

In all, 466 patients were hospitalized, and 106 in this group (23%) died. Among the 132 patients admitted to an ICU, 50 (38%) died, including 27 patients aged 75 years or older, and 15 with an ECOG performance status of 2 or greater. Of the 116 patients who required intubation, 50 (43%) died, including 26 who were 75 years or older, and 11 who had a performance status of 2 or greater.

It’s early days yet, and a larger sample size with longer follow-up will be needed to get a more complete picture of how COVID-19 affects specific patient subsets over time, Dr. Warner said.

ASCO has established its own COVID-19 registry to collect both near-term and longitudinal data during the pandemic.

“We’ll be able to learn about both how the pandemic has impacted delivery of cancer care, as well as the longer-term effects of COVID-19 on cancer patients and understand what care approaches are working best,” said Richard L. Schilsky, MD, chief medical officer and executive vice president of ASCO, during the briefing.

The study of CCC19 registry data was supported in part by the National Institutes of Health and the American Cancer Society. Dr. Warner disclosed stock/ownership in HemOnc.org, consulting for IBM and Westat, and travel expenses from IBM. Dr. Burris, Dr. Schilsky, and Dr. Chan reported no disclosures relevant to the study.
 

SOURCE: Warner J L et al. ASCO 2020, Abstract LBA110.

Adjuvant therapy with osimertinib was associated with a nearly 80% reduction in the risk of disease recurrence or death in patients with stage IB-IIIA non–small cell lung cancer (NSCLC) bearing EGFR mutations, results of the ADAURA trial showed.

The randomized, phase 3 trial was a comparison of osimertinib treatment with placebo following complete resection of localized or locally advanced NSCLC with negative margins. The trial was unblinded early and halted on the recommendation of the independent data-monitoring committee, due to the efficacy of osimertinib.

“If I were on the committee, I would have done the same thing. These are extraordinary results,” said study investigator Roy S. Herbst, MD, PhD, chief of medical oncology at the Yale Cancer Center and Smilow Cancer Center at Yale University in New Haven, Conn.

Dr. Herbst is scheduled to present results from ADAURA as part of the American Society of Clinical Oncology virtual scientific program.

In an online briefing prior to the meeting, Dr. Herbst said the impressive results reminded him of a lesson imparted by his mentor, the late Isaiah Fidler, DVM, PhD.

“He taught me, he taught all of us, that metastasis is a spread of tumor that kills patients,” Dr. Herbst said. “Drugs such as this, based on biology, given to patients at the earliest possible time, prevent those metastases and allow patients to live longer and with a better quality of life.”

Results from the ADAURA trial provide compelling evidence of the benefit of adjuvant osimertinib for a select group of patients, according to Tina Cascone, MD, PhD, assistant professor in the department of thoracic head and neck medical oncology at The University of Texas MD Anderson Cancer Center in Houston. She was not involved in the study.

“These are unprecedented results for a potentially curable, resected population of patients,” Dr. Cascone said in an interview. “This definitely has the potential to shift the paradigm in the treatments that we have available for patients with resected disease. It’s very important to emphasize how much we’ve learned from the metastatic setting and how we’re bringing what we’ve learned into early stage disease.”

 

High recurrence rates

An estimated 30% of patients with NSCLC present with resectable disease at diagnosis, but 5-year recurrence rates following surgery and cisplatin-based adjuvant chemotherapy remain high, ranging from 45% among patients with stage IB disease to 62% for patients with stage II NSCLC and 76% for patients with stage III disease, Dr. Herbst noted.

Osimertinib is a third-generation tyrosine kinase inhibitor (TKI) targeted to EGFR. It has been shown to offer improvements in both progression-free survival and overall survival compared with the EGFR-TKIs erlotinib and gefitinib for patients with advanced EGFR-mutated NSCLC, as well as in patients with central nervous system metastases.

Osimertinib’s efficacy and safety profile against advanced disease suggests it may also be effective against early stage disease, a hypothesis the ADAURA trial was designed to test.
 

Study details

The phase 3, randomized, double-blind trial was conducted at centers in the United States, Europe, Asia, and Australia. A total of 682 patients with completely resected stage IB, II, or IIIA NSCLC, with or without planned adjuvant chemotherapy, were enrolled.

After stratification by stage, EGFR mutation, and race (Asian vs. non-Asian), patients were randomized on a 1:1 basis to receive either osimertinib at 80 mg once daily or placebo. The planned treatment duration was a maximum of 3 years.

Members of the independent data-monitoring committee held a meeting in April 2020. Although they had not planned an efficacy analysis at that time, they decided the results were clearly in favor of osimertinib. So they recommended unblinding and halting of the trial.

At the time of unblinding, the study had completed enrollment, and all patients had been followed for at least 1 year.
 

Efficacy and safety

For the primary endpoint of disease-free survival (DFS) in patients with stage II to IIIA disease, the median DFS was not reached for patients assigned to osimertinib, but it was 20.4 months for patients assigned to placebo (hazard ratio, 0.17; P < .0001).

The numbers were similar for the secondary endpoint of DFS in the overall population, including patients with stage IB disease. The median DFS was not reached for patients on osimertinib but was 28.1 months for patients on placebo (HR, 0.21; P < .0001).

DFS was significantly superior with osimertinib across all subgroups in the overall population, including sex, age, smoking status, race, stage, EGFR mutation, and adjuvant chemotherapy (yes or no).

Dr. Herbst said patients tolerated osimertinib well, and the drug’s safety profile was consistent with that already known. There were no adverse events leading to death in the osimertinib arm, and the incidence of grade 3 or 4 adverse events of any kind was low.

In all, 10 patients (3%) in the osimertinib arm were reported to have interstitial lung disease. Prolongation of the QT interval was reported in 22 patients (7%) on osimertinib and 4 patients (1%) in the placebo arm.

The results show that “adjuvant osimertinib provides a highly effective, practice-changing treatment for patients with stage IB, II, IIIA, EGFR mutation-positive non–small cell lung cancer after complete tumor resection,” Dr. Herbst said.

Dr. Herbst disclosed relationships with AstraZeneca, which funded the study, as well as Jun Shi Pharmaceuticals and other companies. Dr. Cascone is the international principal investigator of the NeoCOAST trial evaluating durvalumab, an AstraZeneca product.

SOURCE: Herbst RS et al. ASCO 2020, Abstract LBA5.

Adjuvant therapy with osimertinib was associated with a nearly 80% reduction in the risk of disease recurrence or death in patients with stage IB-IIIA non–small cell lung cancer (NSCLC) bearing EGFR mutations, results of the ADAURA trial showed.

The randomized, phase 3 trial was a comparison of osimertinib treatment with placebo following complete resection of localized or locally advanced NSCLC with negative margins. The trial was unblinded early and halted on the recommendation of the independent data-monitoring committee, due to the efficacy of osimertinib.

“If I were on the committee, I would have done the same thing. These are extraordinary results,” said study investigator Roy S. Herbst, MD, PhD, chief of medical oncology at the Yale Cancer Center and Smilow Cancer Center at Yale University in New Haven, Conn.

Dr. Herbst is scheduled to present results from ADAURA as part of the American Society of Clinical Oncology virtual scientific program.

In an online briefing prior to the meeting, Dr. Herbst said the impressive results reminded him of a lesson imparted by his mentor, the late Isaiah Fidler, DVM, PhD.

“He taught me, he taught all of us, that metastasis is a spread of tumor that kills patients,” Dr. Herbst said. “Drugs such as this, based on biology, given to patients at the earliest possible time, prevent those metastases and allow patients to live longer and with a better quality of life.”

Results from the ADAURA trial provide compelling evidence of the benefit of adjuvant osimertinib for a select group of patients, according to Tina Cascone, MD, PhD, assistant professor in the department of thoracic head and neck medical oncology at The University of Texas MD Anderson Cancer Center in Houston. She was not involved in the study.

“These are unprecedented results for a potentially curable, resected population of patients,” Dr. Cascone said in an interview. “This definitely has the potential to shift the paradigm in the treatments that we have available for patients with resected disease. It’s very important to emphasize how much we’ve learned from the metastatic setting and how we’re bringing what we’ve learned into early stage disease.”

 

High recurrence rates

An estimated 30% of patients with NSCLC present with resectable disease at diagnosis, but 5-year recurrence rates following surgery and cisplatin-based adjuvant chemotherapy remain high, ranging from 45% among patients with stage IB disease to 62% for patients with stage II NSCLC and 76% for patients with stage III disease, Dr. Herbst noted.

Osimertinib is a third-generation tyrosine kinase inhibitor (TKI) targeted to EGFR. It has been shown to offer improvements in both progression-free survival and overall survival compared with the EGFR-TKIs erlotinib and gefitinib for patients with advanced EGFR-mutated NSCLC, as well as in patients with central nervous system metastases.

Osimertinib’s efficacy and safety profile against advanced disease suggests it may also be effective against early stage disease, a hypothesis the ADAURA trial was designed to test.
 

Study details

The phase 3, randomized, double-blind trial was conducted at centers in the United States, Europe, Asia, and Australia. A total of 682 patients with completely resected stage IB, II, or IIIA NSCLC, with or without planned adjuvant chemotherapy, were enrolled.

After stratification by stage, EGFR mutation, and race (Asian vs. non-Asian), patients were randomized on a 1:1 basis to receive either osimertinib at 80 mg once daily or placebo. The planned treatment duration was a maximum of 3 years.

Members of the independent data-monitoring committee held a meeting in April 2020. Although they had not planned an efficacy analysis at that time, they decided the results were clearly in favor of osimertinib. So they recommended unblinding and halting of the trial.

At the time of unblinding, the study had completed enrollment, and all patients had been followed for at least 1 year.
 

Efficacy and safety

For the primary endpoint of disease-free survival (DFS) in patients with stage II to IIIA disease, the median DFS was not reached for patients assigned to osimertinib, but it was 20.4 months for patients assigned to placebo (hazard ratio, 0.17; P < .0001).

The numbers were similar for the secondary endpoint of DFS in the overall population, including patients with stage IB disease. The median DFS was not reached for patients on osimertinib but was 28.1 months for patients on placebo (HR, 0.21; P < .0001).

DFS was significantly superior with osimertinib across all subgroups in the overall population, including sex, age, smoking status, race, stage, EGFR mutation, and adjuvant chemotherapy (yes or no).

Dr. Herbst said patients tolerated osimertinib well, and the drug’s safety profile was consistent with that already known. There were no adverse events leading to death in the osimertinib arm, and the incidence of grade 3 or 4 adverse events of any kind was low.

In all, 10 patients (3%) in the osimertinib arm were reported to have interstitial lung disease. Prolongation of the QT interval was reported in 22 patients (7%) on osimertinib and 4 patients (1%) in the placebo arm.

The results show that “adjuvant osimertinib provides a highly effective, practice-changing treatment for patients with stage IB, II, IIIA, EGFR mutation-positive non–small cell lung cancer after complete tumor resection,” Dr. Herbst said.

Dr. Herbst disclosed relationships with AstraZeneca, which funded the study, as well as Jun Shi Pharmaceuticals and other companies. Dr. Cascone is the international principal investigator of the NeoCOAST trial evaluating durvalumab, an AstraZeneca product.

SOURCE: Herbst RS et al. ASCO 2020, Abstract LBA5.

Adjuvant therapy with osimertinib was associated with a nearly 80% reduction in the risk of disease recurrence or death in patients with stage IB-IIIA non–small cell lung cancer (NSCLC) bearing EGFR mutations, results of the ADAURA trial showed.

The randomized, phase 3 trial was a comparison of osimertinib treatment with placebo following complete resection of localized or locally advanced NSCLC with negative margins. The trial was unblinded early and halted on the recommendation of the independent data-monitoring committee, due to the efficacy of osimertinib.

“If I were on the committee, I would have done the same thing. These are extraordinary results,” said study investigator Roy S. Herbst, MD, PhD, chief of medical oncology at the Yale Cancer Center and Smilow Cancer Center at Yale University in New Haven, Conn.

Dr. Herbst is scheduled to present results from ADAURA as part of the American Society of Clinical Oncology virtual scientific program.

In an online briefing prior to the meeting, Dr. Herbst said the impressive results reminded him of a lesson imparted by his mentor, the late Isaiah Fidler, DVM, PhD.

“He taught me, he taught all of us, that metastasis is a spread of tumor that kills patients,” Dr. Herbst said. “Drugs such as this, based on biology, given to patients at the earliest possible time, prevent those metastases and allow patients to live longer and with a better quality of life.”

Results from the ADAURA trial provide compelling evidence of the benefit of adjuvant osimertinib for a select group of patients, according to Tina Cascone, MD, PhD, assistant professor in the department of thoracic head and neck medical oncology at The University of Texas MD Anderson Cancer Center in Houston. She was not involved in the study.

“These are unprecedented results for a potentially curable, resected population of patients,” Dr. Cascone said in an interview. “This definitely has the potential to shift the paradigm in the treatments that we have available for patients with resected disease. It’s very important to emphasize how much we’ve learned from the metastatic setting and how we’re bringing what we’ve learned into early stage disease.”

 

High recurrence rates

An estimated 30% of patients with NSCLC present with resectable disease at diagnosis, but 5-year recurrence rates following surgery and cisplatin-based adjuvant chemotherapy remain high, ranging from 45% among patients with stage IB disease to 62% for patients with stage II NSCLC and 76% for patients with stage III disease, Dr. Herbst noted.

Osimertinib is a third-generation tyrosine kinase inhibitor (TKI) targeted to EGFR. It has been shown to offer improvements in both progression-free survival and overall survival compared with the EGFR-TKIs erlotinib and gefitinib for patients with advanced EGFR-mutated NSCLC, as well as in patients with central nervous system metastases.

Osimertinib’s efficacy and safety profile against advanced disease suggests it may also be effective against early stage disease, a hypothesis the ADAURA trial was designed to test.
 

Study details

The phase 3, randomized, double-blind trial was conducted at centers in the United States, Europe, Asia, and Australia. A total of 682 patients with completely resected stage IB, II, or IIIA NSCLC, with or without planned adjuvant chemotherapy, were enrolled.

After stratification by stage, EGFR mutation, and race (Asian vs. non-Asian), patients were randomized on a 1:1 basis to receive either osimertinib at 80 mg once daily or placebo. The planned treatment duration was a maximum of 3 years.

Members of the independent data-monitoring committee held a meeting in April 2020. Although they had not planned an efficacy analysis at that time, they decided the results were clearly in favor of osimertinib. So they recommended unblinding and halting of the trial.

At the time of unblinding, the study had completed enrollment, and all patients had been followed for at least 1 year.
 

Efficacy and safety

For the primary endpoint of disease-free survival (DFS) in patients with stage II to IIIA disease, the median DFS was not reached for patients assigned to osimertinib, but it was 20.4 months for patients assigned to placebo (hazard ratio, 0.17; P < .0001).

The numbers were similar for the secondary endpoint of DFS in the overall population, including patients with stage IB disease. The median DFS was not reached for patients on osimertinib but was 28.1 months for patients on placebo (HR, 0.21; P < .0001).

DFS was significantly superior with osimertinib across all subgroups in the overall population, including sex, age, smoking status, race, stage, EGFR mutation, and adjuvant chemotherapy (yes or no).

Dr. Herbst said patients tolerated osimertinib well, and the drug’s safety profile was consistent with that already known. There were no adverse events leading to death in the osimertinib arm, and the incidence of grade 3 or 4 adverse events of any kind was low.

In all, 10 patients (3%) in the osimertinib arm were reported to have interstitial lung disease. Prolongation of the QT interval was reported in 22 patients (7%) on osimertinib and 4 patients (1%) in the placebo arm.

The results show that “adjuvant osimertinib provides a highly effective, practice-changing treatment for patients with stage IB, II, IIIA, EGFR mutation-positive non–small cell lung cancer after complete tumor resection,” Dr. Herbst said.

Dr. Herbst disclosed relationships with AstraZeneca, which funded the study, as well as Jun Shi Pharmaceuticals and other companies. Dr. Cascone is the international principal investigator of the NeoCOAST trial evaluating durvalumab, an AstraZeneca product.

SOURCE: Herbst RS et al. ASCO 2020, Abstract LBA5.

The Food and Drug Administration has approved the combination of nivolumab (Opdivo), ipilimumab (Yervoy), and two cycles of platinum-doublet chemotherapy as frontline treatment for patients with metastatic or recurrent non–small cell lung cancer (NSCLC) who have no EGFR or ALK genomic tumor aberrations.

The FDA collaborated with the Australian Therapeutic Goods Administration, Health Canada, and Singapore’s Health Sciences Authority on the review that led to this approval, as part of Project Orbis. The FDA approved the application 2 months ahead of schedule.

The combination chemotherapy was investigated in the CHECKMATE-9LA trial (NCT03215706), which enrolled patients with metastatic or recurrent NSCLC.

Patients were randomized to receive nivolumab plus ipilimumab and two cycles of platinum-doublet chemotherapy (n = 361) or platinum-doublet chemotherapy for four cycles (n = 358).

There was a significant overall survival benefit in the nivolumab-ipilimumab arm, compared with the chemotherapy-only arm. The median overall survival was 14.1 months and 10.7 months, respectively (hazard ratio, 0.69; P = .0006).

The median progression-free survival was 6.8 months in the nivolumab-ipilimumab arm and 5 months in the chemotherapy-only arm (HR, 0.70; P = .0001). The overall response rate was 38% and 25%, respectively (P = .0003).

The most common adverse events in the nivolumab-ipilimumab arm, which occurred in at least 20% of patients, were fatigue, musculoskeletal pain, nausea, diarrhea, rash, decreased appetite, constipation, and pruritus.

Serious adverse events occurred in 57% of patients in the nivolumab-ipilimumab arm. Fatal adverse events occurred in seven patients (2%) in that arm. Fatal events were hepatic toxicity, acute renal failure, sepsis, pneumonitis, diarrhea with hypokalemia, and massive hemoptysis in the setting of thrombocytopenia.

For more details, see the full prescribing information for nivolumab or ipilimumab. Nivolumab and ipilimumab are both products of Bristol-Myers Squibb.

The Food and Drug Administration has approved the combination of nivolumab (Opdivo), ipilimumab (Yervoy), and two cycles of platinum-doublet chemotherapy as frontline treatment for patients with metastatic or recurrent non–small cell lung cancer (NSCLC) who have no EGFR or ALK genomic tumor aberrations.

The FDA collaborated with the Australian Therapeutic Goods Administration, Health Canada, and Singapore’s Health Sciences Authority on the review that led to this approval, as part of Project Orbis. The FDA approved the application 2 months ahead of schedule.

The combination chemotherapy was investigated in the CHECKMATE-9LA trial (NCT03215706), which enrolled patients with metastatic or recurrent NSCLC.

Patients were randomized to receive nivolumab plus ipilimumab and two cycles of platinum-doublet chemotherapy (n = 361) or platinum-doublet chemotherapy for four cycles (n = 358).

There was a significant overall survival benefit in the nivolumab-ipilimumab arm, compared with the chemotherapy-only arm. The median overall survival was 14.1 months and 10.7 months, respectively (hazard ratio, 0.69; P = .0006).

The median progression-free survival was 6.8 months in the nivolumab-ipilimumab arm and 5 months in the chemotherapy-only arm (HR, 0.70; P = .0001). The overall response rate was 38% and 25%, respectively (P = .0003).

The most common adverse events in the nivolumab-ipilimumab arm, which occurred in at least 20% of patients, were fatigue, musculoskeletal pain, nausea, diarrhea, rash, decreased appetite, constipation, and pruritus.

Serious adverse events occurred in 57% of patients in the nivolumab-ipilimumab arm. Fatal adverse events occurred in seven patients (2%) in that arm. Fatal events were hepatic toxicity, acute renal failure, sepsis, pneumonitis, diarrhea with hypokalemia, and massive hemoptysis in the setting of thrombocytopenia.

For more details, see the full prescribing information for nivolumab or ipilimumab. Nivolumab and ipilimumab are both products of Bristol-Myers Squibb.

The Food and Drug Administration has approved the combination of nivolumab (Opdivo), ipilimumab (Yervoy), and two cycles of platinum-doublet chemotherapy as frontline treatment for patients with metastatic or recurrent non–small cell lung cancer (NSCLC) who have no EGFR or ALK genomic tumor aberrations.

The FDA collaborated with the Australian Therapeutic Goods Administration, Health Canada, and Singapore’s Health Sciences Authority on the review that led to this approval, as part of Project Orbis. The FDA approved the application 2 months ahead of schedule.

The combination chemotherapy was investigated in the CHECKMATE-9LA trial (NCT03215706), which enrolled patients with metastatic or recurrent NSCLC.

Patients were randomized to receive nivolumab plus ipilimumab and two cycles of platinum-doublet chemotherapy (n = 361) or platinum-doublet chemotherapy for four cycles (n = 358).

There was a significant overall survival benefit in the nivolumab-ipilimumab arm, compared with the chemotherapy-only arm. The median overall survival was 14.1 months and 10.7 months, respectively (hazard ratio, 0.69; P = .0006).

The median progression-free survival was 6.8 months in the nivolumab-ipilimumab arm and 5 months in the chemotherapy-only arm (HR, 0.70; P = .0001). The overall response rate was 38% and 25%, respectively (P = .0003).

The most common adverse events in the nivolumab-ipilimumab arm, which occurred in at least 20% of patients, were fatigue, musculoskeletal pain, nausea, diarrhea, rash, decreased appetite, constipation, and pruritus.

Serious adverse events occurred in 57% of patients in the nivolumab-ipilimumab arm. Fatal adverse events occurred in seven patients (2%) in that arm. Fatal events were hepatic toxicity, acute renal failure, sepsis, pneumonitis, diarrhea with hypokalemia, and massive hemoptysis in the setting of thrombocytopenia.

For more details, see the full prescribing information for nivolumab or ipilimumab. Nivolumab and ipilimumab are both products of Bristol-Myers Squibb.

The Food and Drug Administration has approved brigatinib (Alunbrig) to treat adults with ALK-positive metastatic non–small cell lung cancer (NSCLC) as detected by an FDA-approved test.

The FDA also approved the Vysis ALK Break Apart FISH Probe Kit as a companion diagnostic for brigatinib.

Brigatinib and the companion diagnostic were both evaluated in the ALTA 1L trial (NCT02737501). The trial enrolled adults with advanced ALK-positive NSCLC who had not previously received an ALK-targeted therapy. Patients had to have an ALK rearrangement based on a local standard of care test.

Clinical samples from trial participants were retrospectively tested with the Vysis ALK Break Apart FISH Probe Kit. Of the 275 patients enrolled in the trial, 239 were ALK positive according to the test. Results were negative for 20 patients and unavailable for 16 patients.

Patients were randomized to receive brigatinib at 180 mg once daily with a 7-day lead-in at 90 mg once daily (n = 137) or crizotinib at 250 mg twice daily (n = 138).

The estimated median progression-free survival was 24 months in the brigatinib arm and 11 months in the crizotinib arm (hazard ratio, 0.49; P < .0001). The overall response rate was 74% in the brigatinib arm and 62% in the crizotinib arm.

The most common adverse events in the brigatinib arm, occurring in at least 20% of patients, were diarrhea, fatigue, nausea, rash, cough, myalgia, headache, hypertension, vomiting, abdominal pain, pruritus, back pain, and dyspnea.

Serious adverse events occurred in 33% of patients in the brigatinib arm, and fatal adverse events included in 2.9%. The fatal events were pneumonia (1.5%), cerebrovascular accident (0.7%), and multiple organ dysfunction syndrome (0.7%).

For more details on the ALTA 1L trial, see the full prescribing information for brigatinib.

The approval of brigatinib was granted to ARIAD Pharmaceuticals. The approval of the Vysis ALK Break Apart FISH Probe Kit was granted to Abbott Molecular.

The Food and Drug Administration has approved brigatinib (Alunbrig) to treat adults with ALK-positive metastatic non–small cell lung cancer (NSCLC) as detected by an FDA-approved test.

The FDA also approved the Vysis ALK Break Apart FISH Probe Kit as a companion diagnostic for brigatinib.

Brigatinib and the companion diagnostic were both evaluated in the ALTA 1L trial (NCT02737501). The trial enrolled adults with advanced ALK-positive NSCLC who had not previously received an ALK-targeted therapy. Patients had to have an ALK rearrangement based on a local standard of care test.

Clinical samples from trial participants were retrospectively tested with the Vysis ALK Break Apart FISH Probe Kit. Of the 275 patients enrolled in the trial, 239 were ALK positive according to the test. Results were negative for 20 patients and unavailable for 16 patients.

Patients were randomized to receive brigatinib at 180 mg once daily with a 7-day lead-in at 90 mg once daily (n = 137) or crizotinib at 250 mg twice daily (n = 138).

The estimated median progression-free survival was 24 months in the brigatinib arm and 11 months in the crizotinib arm (hazard ratio, 0.49; P < .0001). The overall response rate was 74% in the brigatinib arm and 62% in the crizotinib arm.

The most common adverse events in the brigatinib arm, occurring in at least 20% of patients, were diarrhea, fatigue, nausea, rash, cough, myalgia, headache, hypertension, vomiting, abdominal pain, pruritus, back pain, and dyspnea.

Serious adverse events occurred in 33% of patients in the brigatinib arm, and fatal adverse events included in 2.9%. The fatal events were pneumonia (1.5%), cerebrovascular accident (0.7%), and multiple organ dysfunction syndrome (0.7%).

For more details on the ALTA 1L trial, see the full prescribing information for brigatinib.

The approval of brigatinib was granted to ARIAD Pharmaceuticals. The approval of the Vysis ALK Break Apart FISH Probe Kit was granted to Abbott Molecular.

The Food and Drug Administration has approved brigatinib (Alunbrig) to treat adults with ALK-positive metastatic non–small cell lung cancer (NSCLC) as detected by an FDA-approved test.

The FDA also approved the Vysis ALK Break Apart FISH Probe Kit as a companion diagnostic for brigatinib.

Brigatinib and the companion diagnostic were both evaluated in the ALTA 1L trial (NCT02737501). The trial enrolled adults with advanced ALK-positive NSCLC who had not previously received an ALK-targeted therapy. Patients had to have an ALK rearrangement based on a local standard of care test.

Clinical samples from trial participants were retrospectively tested with the Vysis ALK Break Apart FISH Probe Kit. Of the 275 patients enrolled in the trial, 239 were ALK positive according to the test. Results were negative for 20 patients and unavailable for 16 patients.

Patients were randomized to receive brigatinib at 180 mg once daily with a 7-day lead-in at 90 mg once daily (n = 137) or crizotinib at 250 mg twice daily (n = 138).

The estimated median progression-free survival was 24 months in the brigatinib arm and 11 months in the crizotinib arm (hazard ratio, 0.49; P < .0001). The overall response rate was 74% in the brigatinib arm and 62% in the crizotinib arm.

The most common adverse events in the brigatinib arm, occurring in at least 20% of patients, were diarrhea, fatigue, nausea, rash, cough, myalgia, headache, hypertension, vomiting, abdominal pain, pruritus, back pain, and dyspnea.

Serious adverse events occurred in 33% of patients in the brigatinib arm, and fatal adverse events included in 2.9%. The fatal events were pneumonia (1.5%), cerebrovascular accident (0.7%), and multiple organ dysfunction syndrome (0.7%).

For more details on the ALTA 1L trial, see the full prescribing information for brigatinib.

The approval of brigatinib was granted to ARIAD Pharmaceuticals. The approval of the Vysis ALK Break Apart FISH Probe Kit was granted to Abbott Molecular.