Neil Osterweil

Eosinophil-guided corticosteroid therapy for patients with chronic obstructive pulmonary disease (COPD) is equivalent in efficacy to standard of care therapy, but the eosinophil-guided therapy may help mitigate the harmful side effects associated with even short courses of corticosteroids, investigators said in a primary care–based randomized trial.

Among patients in 14 primary care practices in the United Kingdom who experienced COPD exacerbations, the proportion of patients who experienced treatment failure at day 28 was 27% for those who were randomized to receive prednisolone only when blood eosinophil counts on a point-of-care assay equaled or exceeded 2%, compared with 34% of all patients randomized to standard of care.

The relative risk for treatment failure using the eosinophil-guided approach was 0.82, which did not reach statistical significance, but indicated noninferiority for the biomarker-based dosing method, Mona Bafadhel, MD, of King’s College London, reported on behalf of colleagues in the Stratified Treatment to Reduce Risk in COPD (STARR2) trial.

“The STARR2 trial showed that eosinophil-guided prescription in primary care is safe and is not associated with worsening outcomes. This is the largest primary care multicenter trial, and probably adds another 20% to the literature base for exacerbations in COPD,” she said in an oral abstract presentation at the European Respiratory Society 2022 Congress.

“A personalized endotype-based treatment with oral prednisolone is possible in patients with COPD and I think should be now part of clinical guidelines,” she added.
 

Too much of a good thing

Although systemic corticosteroids are the universal treatment for COPD exacerbations, the drugs are also known to increase harm, with studies showing that cumulative doses of oral corticosteroids in COPD patients is associated with an increased risk for death. In addition, systemic corticosteroids are the third most common cause of adverse events leading to hospitalization, behind only chemotherapy and antibiotic use leading to  Clostridioides difficile infections, Dr. Bafadhel said.

“And of course, corticosteroids are associated with significant harmful effects, including a five-times increased risk of sepsis, three-times increased risk of [venous thromboembolism], and a twice-increased risk of fracture,” she said.

Dr. Bafadhel and colleagues had previously shown in the single-center BEAT-COPD study that peripheral blood eosinophils at the time of a moderate COPD exacerbation could be used to safely direct oral corticosteroid therapy. She also pointed to a 2019 multicenter open-label study showing that eosinophil-guided care was noninferior to standard prescribing of oral corticosteroids for patients with severe exacerbations.
 

Primary care study

The investigators conducted the current study to test whether eosinophil-guided therapy at the point of care in a primary practice setting was efficacious, with the ultimate goal of encouraging changes in guidelines.

They recruited patients with COPD exacerbations from 14 general practices in Oxfordshire and Buckinghamshire in the Thames Valley.

The patients were randomly assigned to receive either standard of care or the biomarker-guided intervention for 14 days. In this arm, patients with eosinophil counts of 2% or greater received matched prednisolone, while patients with counts below 2% received placebo. The patients were blinded to the assigned drug.

A total of 203 exacerbations among 152 patients were evenly allocated to treatment or control groups. The mean patient age was 71. Of the 102 exacerbations allocated to eosinophil-guided therapy, 34 were treated with placebo.

As noted before, in the intention-to-treat analysis the primary outcome of the treatment failure rate, defined as any need for antibiotics and/or steroids at one month, was 27% in the biomarker-guided arm and 34% in the standard care arm.

“In the per-protocol analysis we also demonstrated that there was a suggestion that there is possible superiority of using blood eosinophil-directed oral corticosteroid prescriptions at the time of acute exacerbation using the point-of-care eosinophil test,” Dr. Bafadhel said.

There were no significant differences in the secondary outcomes of mean change in forced expiratory volume in 1 second (FEV₁), COPD Assessment Test scores from exacerbation to follow-up, and symptoms according to a visual analog scale. 

Invited discussant Dave Singh, MD, of the University of Manchester, England, asked Dr. Bafadhel how the data she presented supported her conclusions about the potential benefits of eosinophil-guided therapy, given that the P values were nonsignificant.

“The primary outcome was powered on noninferiority, and of course what we’ve shown is that it’s not any worse, it’s not any better, but of course it’s the effect of how many courses of steroids you can reduce in that population,” Dr. Bafadhel replied.

She noted that although the investigators have not performed an economic analysis to determine how many adverse events might be avoided using the biomarker-guided approach, “we do know that some of these patients who are given prednisolone, their comorbidities of diabetes worsened, for example.”

In the online Q&A for the presentation, Sohail Ansari, MD, from the Mid and South Essex NHS Foundation Trust in the United Kingdom, said that many patients in primary care practices receive “rescue packs” containing antibiotics and steroids, but may not be equipped to know when they should use the steroids and therefore may overuse them.

“Perhaps community-based, adequately resourced respiratory teams [may] be a way forward, but it will need adequate investment and commitment,” he wrote.

The trial was supported by the University of Oxford and National Institute for Health and Care Research, UK. Dr. Bafadhel reported grant and research support from the National Institute for Health and Care Research, Asthma & Lung UK, AstraZeneca, and Roche, and honoraria or fees from others. Dr. Singh reported speaking fees, honoraria, and research grants from multiple companies. Dr. Ansari reported no conflicts of interest.

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

Eosinophil-guided corticosteroid therapy for patients with chronic obstructive pulmonary disease (COPD) is equivalent in efficacy to standard of care therapy, but the eosinophil-guided therapy may help mitigate the harmful side effects associated with even short courses of corticosteroids, investigators said in a primary care–based randomized trial.

Among patients in 14 primary care practices in the United Kingdom who experienced COPD exacerbations, the proportion of patients who experienced treatment failure at day 28 was 27% for those who were randomized to receive prednisolone only when blood eosinophil counts on a point-of-care assay equaled or exceeded 2%, compared with 34% of all patients randomized to standard of care.

The relative risk for treatment failure using the eosinophil-guided approach was 0.82, which did not reach statistical significance, but indicated noninferiority for the biomarker-based dosing method, Mona Bafadhel, MD, of King’s College London, reported on behalf of colleagues in the Stratified Treatment to Reduce Risk in COPD (STARR2) trial.

“The STARR2 trial showed that eosinophil-guided prescription in primary care is safe and is not associated with worsening outcomes. This is the largest primary care multicenter trial, and probably adds another 20% to the literature base for exacerbations in COPD,” she said in an oral abstract presentation at the European Respiratory Society 2022 Congress.

“A personalized endotype-based treatment with oral prednisolone is possible in patients with COPD and I think should be now part of clinical guidelines,” she added.
 

Too much of a good thing

Although systemic corticosteroids are the universal treatment for COPD exacerbations, the drugs are also known to increase harm, with studies showing that cumulative doses of oral corticosteroids in COPD patients is associated with an increased risk for death. In addition, systemic corticosteroids are the third most common cause of adverse events leading to hospitalization, behind only chemotherapy and antibiotic use leading to  Clostridioides difficile infections, Dr. Bafadhel said.

“And of course, corticosteroids are associated with significant harmful effects, including a five-times increased risk of sepsis, three-times increased risk of [venous thromboembolism], and a twice-increased risk of fracture,” she said.

Dr. Bafadhel and colleagues had previously shown in the single-center BEAT-COPD study that peripheral blood eosinophils at the time of a moderate COPD exacerbation could be used to safely direct oral corticosteroid therapy. She also pointed to a 2019 multicenter open-label study showing that eosinophil-guided care was noninferior to standard prescribing of oral corticosteroids for patients with severe exacerbations.
 

Primary care study

The investigators conducted the current study to test whether eosinophil-guided therapy at the point of care in a primary practice setting was efficacious, with the ultimate goal of encouraging changes in guidelines.

They recruited patients with COPD exacerbations from 14 general practices in Oxfordshire and Buckinghamshire in the Thames Valley.

The patients were randomly assigned to receive either standard of care or the biomarker-guided intervention for 14 days. In this arm, patients with eosinophil counts of 2% or greater received matched prednisolone, while patients with counts below 2% received placebo. The patients were blinded to the assigned drug.

A total of 203 exacerbations among 152 patients were evenly allocated to treatment or control groups. The mean patient age was 71. Of the 102 exacerbations allocated to eosinophil-guided therapy, 34 were treated with placebo.

As noted before, in the intention-to-treat analysis the primary outcome of the treatment failure rate, defined as any need for antibiotics and/or steroids at one month, was 27% in the biomarker-guided arm and 34% in the standard care arm.

“In the per-protocol analysis we also demonstrated that there was a suggestion that there is possible superiority of using blood eosinophil-directed oral corticosteroid prescriptions at the time of acute exacerbation using the point-of-care eosinophil test,” Dr. Bafadhel said.

There were no significant differences in the secondary outcomes of mean change in forced expiratory volume in 1 second (FEV₁), COPD Assessment Test scores from exacerbation to follow-up, and symptoms according to a visual analog scale. 

Invited discussant Dave Singh, MD, of the University of Manchester, England, asked Dr. Bafadhel how the data she presented supported her conclusions about the potential benefits of eosinophil-guided therapy, given that the P values were nonsignificant.

“The primary outcome was powered on noninferiority, and of course what we’ve shown is that it’s not any worse, it’s not any better, but of course it’s the effect of how many courses of steroids you can reduce in that population,” Dr. Bafadhel replied.

She noted that although the investigators have not performed an economic analysis to determine how many adverse events might be avoided using the biomarker-guided approach, “we do know that some of these patients who are given prednisolone, their comorbidities of diabetes worsened, for example.”

In the online Q&A for the presentation, Sohail Ansari, MD, from the Mid and South Essex NHS Foundation Trust in the United Kingdom, said that many patients in primary care practices receive “rescue packs” containing antibiotics and steroids, but may not be equipped to know when they should use the steroids and therefore may overuse them.

“Perhaps community-based, adequately resourced respiratory teams [may] be a way forward, but it will need adequate investment and commitment,” he wrote.

The trial was supported by the University of Oxford and National Institute for Health and Care Research, UK. Dr. Bafadhel reported grant and research support from the National Institute for Health and Care Research, Asthma & Lung UK, AstraZeneca, and Roche, and honoraria or fees from others. Dr. Singh reported speaking fees, honoraria, and research grants from multiple companies. Dr. Ansari reported no conflicts of interest.

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

Eosinophil-guided corticosteroid therapy for patients with chronic obstructive pulmonary disease (COPD) is equivalent in efficacy to standard of care therapy, but the eosinophil-guided therapy may help mitigate the harmful side effects associated with even short courses of corticosteroids, investigators said in a primary care–based randomized trial.

Among patients in 14 primary care practices in the United Kingdom who experienced COPD exacerbations, the proportion of patients who experienced treatment failure at day 28 was 27% for those who were randomized to receive prednisolone only when blood eosinophil counts on a point-of-care assay equaled or exceeded 2%, compared with 34% of all patients randomized to standard of care.

The relative risk for treatment failure using the eosinophil-guided approach was 0.82, which did not reach statistical significance, but indicated noninferiority for the biomarker-based dosing method, Mona Bafadhel, MD, of King’s College London, reported on behalf of colleagues in the Stratified Treatment to Reduce Risk in COPD (STARR2) trial.

“The STARR2 trial showed that eosinophil-guided prescription in primary care is safe and is not associated with worsening outcomes. This is the largest primary care multicenter trial, and probably adds another 20% to the literature base for exacerbations in COPD,” she said in an oral abstract presentation at the European Respiratory Society 2022 Congress.

“A personalized endotype-based treatment with oral prednisolone is possible in patients with COPD and I think should be now part of clinical guidelines,” she added.
 

Too much of a good thing

Although systemic corticosteroids are the universal treatment for COPD exacerbations, the drugs are also known to increase harm, with studies showing that cumulative doses of oral corticosteroids in COPD patients is associated with an increased risk for death. In addition, systemic corticosteroids are the third most common cause of adverse events leading to hospitalization, behind only chemotherapy and antibiotic use leading to  Clostridioides difficile infections, Dr. Bafadhel said.

“And of course, corticosteroids are associated with significant harmful effects, including a five-times increased risk of sepsis, three-times increased risk of [venous thromboembolism], and a twice-increased risk of fracture,” she said.

Dr. Bafadhel and colleagues had previously shown in the single-center BEAT-COPD study that peripheral blood eosinophils at the time of a moderate COPD exacerbation could be used to safely direct oral corticosteroid therapy. She also pointed to a 2019 multicenter open-label study showing that eosinophil-guided care was noninferior to standard prescribing of oral corticosteroids for patients with severe exacerbations.
 

Primary care study

The investigators conducted the current study to test whether eosinophil-guided therapy at the point of care in a primary practice setting was efficacious, with the ultimate goal of encouraging changes in guidelines.

They recruited patients with COPD exacerbations from 14 general practices in Oxfordshire and Buckinghamshire in the Thames Valley.

The patients were randomly assigned to receive either standard of care or the biomarker-guided intervention for 14 days. In this arm, patients with eosinophil counts of 2% or greater received matched prednisolone, while patients with counts below 2% received placebo. The patients were blinded to the assigned drug.

A total of 203 exacerbations among 152 patients were evenly allocated to treatment or control groups. The mean patient age was 71. Of the 102 exacerbations allocated to eosinophil-guided therapy, 34 were treated with placebo.

As noted before, in the intention-to-treat analysis the primary outcome of the treatment failure rate, defined as any need for antibiotics and/or steroids at one month, was 27% in the biomarker-guided arm and 34% in the standard care arm.

“In the per-protocol analysis we also demonstrated that there was a suggestion that there is possible superiority of using blood eosinophil-directed oral corticosteroid prescriptions at the time of acute exacerbation using the point-of-care eosinophil test,” Dr. Bafadhel said.

There were no significant differences in the secondary outcomes of mean change in forced expiratory volume in 1 second (FEV₁), COPD Assessment Test scores from exacerbation to follow-up, and symptoms according to a visual analog scale. 

Invited discussant Dave Singh, MD, of the University of Manchester, England, asked Dr. Bafadhel how the data she presented supported her conclusions about the potential benefits of eosinophil-guided therapy, given that the P values were nonsignificant.

“The primary outcome was powered on noninferiority, and of course what we’ve shown is that it’s not any worse, it’s not any better, but of course it’s the effect of how many courses of steroids you can reduce in that population,” Dr. Bafadhel replied.

She noted that although the investigators have not performed an economic analysis to determine how many adverse events might be avoided using the biomarker-guided approach, “we do know that some of these patients who are given prednisolone, their comorbidities of diabetes worsened, for example.”

In the online Q&A for the presentation, Sohail Ansari, MD, from the Mid and South Essex NHS Foundation Trust in the United Kingdom, said that many patients in primary care practices receive “rescue packs” containing antibiotics and steroids, but may not be equipped to know when they should use the steroids and therefore may overuse them.

“Perhaps community-based, adequately resourced respiratory teams [may] be a way forward, but it will need adequate investment and commitment,” he wrote.

The trial was supported by the University of Oxford and National Institute for Health and Care Research, UK. Dr. Bafadhel reported grant and research support from the National Institute for Health and Care Research, Asthma & Lung UK, AstraZeneca, and Roche, and honoraria or fees from others. Dr. Singh reported speaking fees, honoraria, and research grants from multiple companies. Dr. Ansari reported no conflicts of interest.

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

Current or former smokers who have clinically significant respiratory symptoms but no spirometric evidence of airway obstruction are often treated with dual bronchodilators commonly prescribed for patients with chronic obstructive pulmonary disease (COPD).

But as results of the randomized RETHINC (Redefining Therapy In Early COPD for the Pulmonary Trials Cooperative) trial showed, bronchodilator therapy was no better than placebo at reducing respiratory symptoms in smokers, reported MeiLan K. Han, MD, from the University of Michigan, Ann Arbor, on behalf of colleagues in the RETHINC study group.

“Many tobacco-exposed symptomatic individuals are currently being treated. We don’t know if this is because physicians just aren’t doing spirometry and assuming COPD or they strongly believe that there’s a benefit, but the bottom line is that we really need to do spirometry to understand who benefits from bronchodilators, and we need further research to understand how to treat this specific group of patients because there truly is pathogenesis and disease burden,” Dr. Han said in an oral abstract presentation at the annual congress of the European Respiratory Society.

The study results were also published online in the New England Journal of Medicine to coincide with the presentation.

In an editorial accompanying the study, Don D. Sin, MD, MPH, from the University of British Columbia, Vancouver, commented that the study shows that “long-acting bronchodilators do not appear to be effective for the treatment of symptomatic persons with a smoking history and preserved lung function on spirometry; these medications should most likely be reserved for patients with COPD who have clinically significant airflow limitation,” and that “respiratory symptoms in tobacco-exposed persons are common but are highly variable over time.”

Dave Singh, MD, from the University of Manchester (England), the invited discussant, called it “a very important negative study.”
 

Not up to GOLD standard

Current or former smokers who are symptomatic, with COPD Assessment Test (CAT) scores of at least 10 despite having preserved function on spirometry, have been shown to have higher prospective rates of respiratory disease exacerbations and increased sputum total mucin concentrations. Approximately 43% of such patients are treated with bronchodilators, and 23% are treated with inhaled corticosteroids (ICS), Dr. Han noted.

Her group hypothesized that ever-smokers with spirometric values that fall within the normal range – that is, a postbronchodilator FEV1/FVC ratio of 70 or greater – would still derive benefit from long-acting bronchodilator therapy, even though these patients are currently excluded from Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommendations.

To test this, they conducted a 12-week, multicenter, randomized, parallel-group study in which patients were assigned to receive either indacaterol (27.5 mcg) and glycopyrrolate (15.6 mcg) inhaled twice daily or placebo.

They enrolled adults aged 40-80 years with a minimum of 10 pack-years of smoking history, postbronchodilator FEV₁/FVC ratio of 70 or greater, and CAT scores of 10 or greater. Patients with known concomitant lung disease, a primary diagnosis of asthma, or body mass index lower than 15 or higher than 40 and those being concomitantly treated with long-acting beta₂-agonists or muscarinic antagonists or a short-acting combination were excluded, although patients were allowed to be on a short-acting beta-agonist.

A total of 535 participants were randomized, but COVID-19 pandemic–imposed obstacles resulted in a modified intention-to-treat population of 277 patients assigned to receive the active treatment and 244 assigned to receive placebo.

There was no difference between the groups for the primary outcome of an at least 4-point decrease in St. George’s Respiratory Questionnaire scores in patients who did not experience treatment failure, defined as an increase in respiratory symptoms requiring treatment with active long-acting bronchodilators or ICS.

The primary endpoint was seen in 56.4% of patients in the bronchodilator group, and 59% of controls.

Although there was greater improvement in pulmonary function from baseline in the treatment group, compared with the placebo group, the improvements did not correlate with similar improvements in symptoms, Dr. Han said.

There were 4 serious adverse events in the bronchodilator group and 11 in the placebo group, but none of the events were deemed to be related to the assigned treatments.

Dr. Han acknowledged limitations of the study, which may have included symptoms driven by other factors such as cardiac disease, suggesting that if such patients had been identified and excluded, a stronger effect might have been seen for the active treatment.

In addition, the study was underpowered to look at the subgroup of participants with chronic bronchitis, and the 12 weeks of the study may have been too short to see improvements in symptoms.

In his editorial, Dr. Sin noted that the study showed that cough and sputum production rather than exertion dyspnea are the primary symptoms among ever-smokers.

“Although bronchodilators are effective in ameliorating breathlessness and improving exercise tolerance, they are generally ineffective for cough,” he wrote. “Existing drugs for the treatment of COPD, such as inhaled glucocorticoids or phosphodiesterase-4 inhibitors, or new therapeutics such as P2X3 receptor antagonists may be more effective for the treatment of cough and sputum production related to smoking and could be considered for future evaluations in this patient population.”

The study was supported by the National Heart, Lung, and Blood Institute, the National Center for Advancing Translational Sciences, and Sunovion Pharmaceuticals. Novartis Pharmaceuticals donated the trial medication and placebo. Dr. Han disclosed grant/research support and honoraria or consulting fees from various companies. Dr. Singh reported speaking fees, honoraria, and research grants from multiple companies. Dr. Sin reported having no conflicts of interest to disclose.

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

Current or former smokers who have clinically significant respiratory symptoms but no spirometric evidence of airway obstruction are often treated with dual bronchodilators commonly prescribed for patients with chronic obstructive pulmonary disease (COPD).

But as results of the randomized RETHINC (Redefining Therapy In Early COPD for the Pulmonary Trials Cooperative) trial showed, bronchodilator therapy was no better than placebo at reducing respiratory symptoms in smokers, reported MeiLan K. Han, MD, from the University of Michigan, Ann Arbor, on behalf of colleagues in the RETHINC study group.

“Many tobacco-exposed symptomatic individuals are currently being treated. We don’t know if this is because physicians just aren’t doing spirometry and assuming COPD or they strongly believe that there’s a benefit, but the bottom line is that we really need to do spirometry to understand who benefits from bronchodilators, and we need further research to understand how to treat this specific group of patients because there truly is pathogenesis and disease burden,” Dr. Han said in an oral abstract presentation at the annual congress of the European Respiratory Society.

The study results were also published online in the New England Journal of Medicine to coincide with the presentation.

In an editorial accompanying the study, Don D. Sin, MD, MPH, from the University of British Columbia, Vancouver, commented that the study shows that “long-acting bronchodilators do not appear to be effective for the treatment of symptomatic persons with a smoking history and preserved lung function on spirometry; these medications should most likely be reserved for patients with COPD who have clinically significant airflow limitation,” and that “respiratory symptoms in tobacco-exposed persons are common but are highly variable over time.”

Dave Singh, MD, from the University of Manchester (England), the invited discussant, called it “a very important negative study.”
 

Not up to GOLD standard

Current or former smokers who are symptomatic, with COPD Assessment Test (CAT) scores of at least 10 despite having preserved function on spirometry, have been shown to have higher prospective rates of respiratory disease exacerbations and increased sputum total mucin concentrations. Approximately 43% of such patients are treated with bronchodilators, and 23% are treated with inhaled corticosteroids (ICS), Dr. Han noted.

Her group hypothesized that ever-smokers with spirometric values that fall within the normal range – that is, a postbronchodilator FEV1/FVC ratio of 70 or greater – would still derive benefit from long-acting bronchodilator therapy, even though these patients are currently excluded from Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommendations.

To test this, they conducted a 12-week, multicenter, randomized, parallel-group study in which patients were assigned to receive either indacaterol (27.5 mcg) and glycopyrrolate (15.6 mcg) inhaled twice daily or placebo.

They enrolled adults aged 40-80 years with a minimum of 10 pack-years of smoking history, postbronchodilator FEV₁/FVC ratio of 70 or greater, and CAT scores of 10 or greater. Patients with known concomitant lung disease, a primary diagnosis of asthma, or body mass index lower than 15 or higher than 40 and those being concomitantly treated with long-acting beta₂-agonists or muscarinic antagonists or a short-acting combination were excluded, although patients were allowed to be on a short-acting beta-agonist.

A total of 535 participants were randomized, but COVID-19 pandemic–imposed obstacles resulted in a modified intention-to-treat population of 277 patients assigned to receive the active treatment and 244 assigned to receive placebo.

There was no difference between the groups for the primary outcome of an at least 4-point decrease in St. George’s Respiratory Questionnaire scores in patients who did not experience treatment failure, defined as an increase in respiratory symptoms requiring treatment with active long-acting bronchodilators or ICS.

The primary endpoint was seen in 56.4% of patients in the bronchodilator group, and 59% of controls.

Although there was greater improvement in pulmonary function from baseline in the treatment group, compared with the placebo group, the improvements did not correlate with similar improvements in symptoms, Dr. Han said.

There were 4 serious adverse events in the bronchodilator group and 11 in the placebo group, but none of the events were deemed to be related to the assigned treatments.

Dr. Han acknowledged limitations of the study, which may have included symptoms driven by other factors such as cardiac disease, suggesting that if such patients had been identified and excluded, a stronger effect might have been seen for the active treatment.

In addition, the study was underpowered to look at the subgroup of participants with chronic bronchitis, and the 12 weeks of the study may have been too short to see improvements in symptoms.

In his editorial, Dr. Sin noted that the study showed that cough and sputum production rather than exertion dyspnea are the primary symptoms among ever-smokers.

“Although bronchodilators are effective in ameliorating breathlessness and improving exercise tolerance, they are generally ineffective for cough,” he wrote. “Existing drugs for the treatment of COPD, such as inhaled glucocorticoids or phosphodiesterase-4 inhibitors, or new therapeutics such as P2X3 receptor antagonists may be more effective for the treatment of cough and sputum production related to smoking and could be considered for future evaluations in this patient population.”

The study was supported by the National Heart, Lung, and Blood Institute, the National Center for Advancing Translational Sciences, and Sunovion Pharmaceuticals. Novartis Pharmaceuticals donated the trial medication and placebo. Dr. Han disclosed grant/research support and honoraria or consulting fees from various companies. Dr. Singh reported speaking fees, honoraria, and research grants from multiple companies. Dr. Sin reported having no conflicts of interest to disclose.

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

Current or former smokers who have clinically significant respiratory symptoms but no spirometric evidence of airway obstruction are often treated with dual bronchodilators commonly prescribed for patients with chronic obstructive pulmonary disease (COPD).

But as results of the randomized RETHINC (Redefining Therapy In Early COPD for the Pulmonary Trials Cooperative) trial showed, bronchodilator therapy was no better than placebo at reducing respiratory symptoms in smokers, reported MeiLan K. Han, MD, from the University of Michigan, Ann Arbor, on behalf of colleagues in the RETHINC study group.

“Many tobacco-exposed symptomatic individuals are currently being treated. We don’t know if this is because physicians just aren’t doing spirometry and assuming COPD or they strongly believe that there’s a benefit, but the bottom line is that we really need to do spirometry to understand who benefits from bronchodilators, and we need further research to understand how to treat this specific group of patients because there truly is pathogenesis and disease burden,” Dr. Han said in an oral abstract presentation at the annual congress of the European Respiratory Society.

The study results were also published online in the New England Journal of Medicine to coincide with the presentation.

In an editorial accompanying the study, Don D. Sin, MD, MPH, from the University of British Columbia, Vancouver, commented that the study shows that “long-acting bronchodilators do not appear to be effective for the treatment of symptomatic persons with a smoking history and preserved lung function on spirometry; these medications should most likely be reserved for patients with COPD who have clinically significant airflow limitation,” and that “respiratory symptoms in tobacco-exposed persons are common but are highly variable over time.”

Dave Singh, MD, from the University of Manchester (England), the invited discussant, called it “a very important negative study.”
 

Not up to GOLD standard

Current or former smokers who are symptomatic, with COPD Assessment Test (CAT) scores of at least 10 despite having preserved function on spirometry, have been shown to have higher prospective rates of respiratory disease exacerbations and increased sputum total mucin concentrations. Approximately 43% of such patients are treated with bronchodilators, and 23% are treated with inhaled corticosteroids (ICS), Dr. Han noted.

Her group hypothesized that ever-smokers with spirometric values that fall within the normal range – that is, a postbronchodilator FEV1/FVC ratio of 70 or greater – would still derive benefit from long-acting bronchodilator therapy, even though these patients are currently excluded from Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommendations.

To test this, they conducted a 12-week, multicenter, randomized, parallel-group study in which patients were assigned to receive either indacaterol (27.5 mcg) and glycopyrrolate (15.6 mcg) inhaled twice daily or placebo.

They enrolled adults aged 40-80 years with a minimum of 10 pack-years of smoking history, postbronchodilator FEV₁/FVC ratio of 70 or greater, and CAT scores of 10 or greater. Patients with known concomitant lung disease, a primary diagnosis of asthma, or body mass index lower than 15 or higher than 40 and those being concomitantly treated with long-acting beta₂-agonists or muscarinic antagonists or a short-acting combination were excluded, although patients were allowed to be on a short-acting beta-agonist.

A total of 535 participants were randomized, but COVID-19 pandemic–imposed obstacles resulted in a modified intention-to-treat population of 277 patients assigned to receive the active treatment and 244 assigned to receive placebo.

There was no difference between the groups for the primary outcome of an at least 4-point decrease in St. George’s Respiratory Questionnaire scores in patients who did not experience treatment failure, defined as an increase in respiratory symptoms requiring treatment with active long-acting bronchodilators or ICS.

The primary endpoint was seen in 56.4% of patients in the bronchodilator group, and 59% of controls.

Although there was greater improvement in pulmonary function from baseline in the treatment group, compared with the placebo group, the improvements did not correlate with similar improvements in symptoms, Dr. Han said.

There were 4 serious adverse events in the bronchodilator group and 11 in the placebo group, but none of the events were deemed to be related to the assigned treatments.

Dr. Han acknowledged limitations of the study, which may have included symptoms driven by other factors such as cardiac disease, suggesting that if such patients had been identified and excluded, a stronger effect might have been seen for the active treatment.

In addition, the study was underpowered to look at the subgroup of participants with chronic bronchitis, and the 12 weeks of the study may have been too short to see improvements in symptoms.

In his editorial, Dr. Sin noted that the study showed that cough and sputum production rather than exertion dyspnea are the primary symptoms among ever-smokers.

“Although bronchodilators are effective in ameliorating breathlessness and improving exercise tolerance, they are generally ineffective for cough,” he wrote. “Existing drugs for the treatment of COPD, such as inhaled glucocorticoids or phosphodiesterase-4 inhibitors, or new therapeutics such as P2X3 receptor antagonists may be more effective for the treatment of cough and sputum production related to smoking and could be considered for future evaluations in this patient population.”

The study was supported by the National Heart, Lung, and Blood Institute, the National Center for Advancing Translational Sciences, and Sunovion Pharmaceuticals. Novartis Pharmaceuticals donated the trial medication and placebo. Dr. Han disclosed grant/research support and honoraria or consulting fees from various companies. Dr. Singh reported speaking fees, honoraria, and research grants from multiple companies. Dr. Sin reported having no conflicts of interest to disclose.

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

Giving a boost radiation dose to the tumor bed following breast-conserving surgery and whole breast irradiation (WBI) has been shown to be effective at reducing recurrence of invasive breast cancer, and now a multinational randomized trial has shown that it can do the same for patients with non–low-risk ductal carcinoma in situ (DCIS).

“The results provide the first randomized trial data to support the use of boost radiation after postoperative WBI in these patients to improve local control,” wrote the authors, led by Boon H. Chua, PhD, from the University of New South Wales, Sydney.

Among 1,608 patients with DCIS with at least one clinical or pathological marker for increased risk of local recurrence, 5-year rates of freedom from local recurrence were 97.1% for patients assigned to received a tumor bed boost versus 92.7% for patients who did not receive a boost dose. This difference translated into a hazard ratio for recurrence with radiation boost of 0.47 (P < .001).

“Our results support the use of tumor-bed boost radiation after postoperative WBI in patients with non–low-risk DCIS to optimize local control, and the adoption of moderately hypofractionated whole breast irradiation in practice to improve the balance of local control, toxicity, and socioeconomic burdens of treatment,” the authors wrote in a study published in The Lancet.

The investigators, from cancer centers in Australia, Europe, and Canada, noted that the advent of screening mammography was followed by a substantial increase in the diagnosis of DCIS. They also noted that patients who undergo breast-conserving surgery for DCIS are at risk for local recurrence, and half of recurrences present as invasive disease.

In addition, they said, there were high recurrence rates in randomized clinical for patients with DCIS who received conventionally fractionated WBI without a tumor boost following surgery.

“Further, the inconvenience of a 5- to 6-week course of conventionally fractionated WBI decreased the quality of life of patients. Thus, tailoring radiation dose fractionation according to recurrence risk is a prominent controversy in the radiation treatment of DCIS,” they wrote.
 

Four-way trial

To see whether a tumor-bed boost following WBI and alternative WBI fractionation schedules could improve outcomes for patients with non–low-risk DCIS, the researchers enrolled patients and assigned them on an equal basis to one of four groups, in which they would receive either conventional or hypofractionated WBI with or without a tumor-bed boost.

The conventional WBI regimen consisted of a total of 50 Gy delivered over 25 fractions. The hypofractionated regimen consisted of a total dose of 42.5 Gy delivered in 16 fractions. Patients assigned to get a boost dose to the tumor bed received an additional 16 Gy in eight fractions after WBI.

Of the 1,608 patients enrolled who eligible for randomization, 803 received a boost dose and 805 did not. As noted before, the risk of recurrence at 5 years was significantly lower with boosting, with 5-year free-from-local-recurrence rates of 97.1%, compared with 92.7% for patients who did not get a tumor-bed boost.

There were no significant differences according to fractionation schedule, however: among all randomly assigned patients the rate of 5-year freedom from recurrence was 94.9% for both the conventionally fractionated and hypofractionated WBI groups.

Not surprisingly, patients who received the boost dose had higher rates of grade 2 or greater toxicities, including breast pain (14% vs. 10%; P = .03) and induration (14% vs. 6%; P < .001).

The study was supported by the National Health and Medical Research Council of Australia, Susan G. Komen for the Cure, Breast Cancer Now, OncoSuisse, Dutch Cancer Society, and Canadian Cancer Trials Group. Dr. Chua disclosed grant support from the organizations and others.

Giving a boost radiation dose to the tumor bed following breast-conserving surgery and whole breast irradiation (WBI) has been shown to be effective at reducing recurrence of invasive breast cancer, and now a multinational randomized trial has shown that it can do the same for patients with non–low-risk ductal carcinoma in situ (DCIS).

“The results provide the first randomized trial data to support the use of boost radiation after postoperative WBI in these patients to improve local control,” wrote the authors, led by Boon H. Chua, PhD, from the University of New South Wales, Sydney.

Among 1,608 patients with DCIS with at least one clinical or pathological marker for increased risk of local recurrence, 5-year rates of freedom from local recurrence were 97.1% for patients assigned to received a tumor bed boost versus 92.7% for patients who did not receive a boost dose. This difference translated into a hazard ratio for recurrence with radiation boost of 0.47 (P < .001).

“Our results support the use of tumor-bed boost radiation after postoperative WBI in patients with non–low-risk DCIS to optimize local control, and the adoption of moderately hypofractionated whole breast irradiation in practice to improve the balance of local control, toxicity, and socioeconomic burdens of treatment,” the authors wrote in a study published in The Lancet.

The investigators, from cancer centers in Australia, Europe, and Canada, noted that the advent of screening mammography was followed by a substantial increase in the diagnosis of DCIS. They also noted that patients who undergo breast-conserving surgery for DCIS are at risk for local recurrence, and half of recurrences present as invasive disease.

In addition, they said, there were high recurrence rates in randomized clinical for patients with DCIS who received conventionally fractionated WBI without a tumor boost following surgery.

“Further, the inconvenience of a 5- to 6-week course of conventionally fractionated WBI decreased the quality of life of patients. Thus, tailoring radiation dose fractionation according to recurrence risk is a prominent controversy in the radiation treatment of DCIS,” they wrote.
 

Four-way trial

To see whether a tumor-bed boost following WBI and alternative WBI fractionation schedules could improve outcomes for patients with non–low-risk DCIS, the researchers enrolled patients and assigned them on an equal basis to one of four groups, in which they would receive either conventional or hypofractionated WBI with or without a tumor-bed boost.

The conventional WBI regimen consisted of a total of 50 Gy delivered over 25 fractions. The hypofractionated regimen consisted of a total dose of 42.5 Gy delivered in 16 fractions. Patients assigned to get a boost dose to the tumor bed received an additional 16 Gy in eight fractions after WBI.

Of the 1,608 patients enrolled who eligible for randomization, 803 received a boost dose and 805 did not. As noted before, the risk of recurrence at 5 years was significantly lower with boosting, with 5-year free-from-local-recurrence rates of 97.1%, compared with 92.7% for patients who did not get a tumor-bed boost.

There were no significant differences according to fractionation schedule, however: among all randomly assigned patients the rate of 5-year freedom from recurrence was 94.9% for both the conventionally fractionated and hypofractionated WBI groups.

Not surprisingly, patients who received the boost dose had higher rates of grade 2 or greater toxicities, including breast pain (14% vs. 10%; P = .03) and induration (14% vs. 6%; P < .001).

The study was supported by the National Health and Medical Research Council of Australia, Susan G. Komen for the Cure, Breast Cancer Now, OncoSuisse, Dutch Cancer Society, and Canadian Cancer Trials Group. Dr. Chua disclosed grant support from the organizations and others.

Giving a boost radiation dose to the tumor bed following breast-conserving surgery and whole breast irradiation (WBI) has been shown to be effective at reducing recurrence of invasive breast cancer, and now a multinational randomized trial has shown that it can do the same for patients with non–low-risk ductal carcinoma in situ (DCIS).

“The results provide the first randomized trial data to support the use of boost radiation after postoperative WBI in these patients to improve local control,” wrote the authors, led by Boon H. Chua, PhD, from the University of New South Wales, Sydney.

Among 1,608 patients with DCIS with at least one clinical or pathological marker for increased risk of local recurrence, 5-year rates of freedom from local recurrence were 97.1% for patients assigned to received a tumor bed boost versus 92.7% for patients who did not receive a boost dose. This difference translated into a hazard ratio for recurrence with radiation boost of 0.47 (P < .001).

“Our results support the use of tumor-bed boost radiation after postoperative WBI in patients with non–low-risk DCIS to optimize local control, and the adoption of moderately hypofractionated whole breast irradiation in practice to improve the balance of local control, toxicity, and socioeconomic burdens of treatment,” the authors wrote in a study published in The Lancet.

The investigators, from cancer centers in Australia, Europe, and Canada, noted that the advent of screening mammography was followed by a substantial increase in the diagnosis of DCIS. They also noted that patients who undergo breast-conserving surgery for DCIS are at risk for local recurrence, and half of recurrences present as invasive disease.

In addition, they said, there were high recurrence rates in randomized clinical for patients with DCIS who received conventionally fractionated WBI without a tumor boost following surgery.

“Further, the inconvenience of a 5- to 6-week course of conventionally fractionated WBI decreased the quality of life of patients. Thus, tailoring radiation dose fractionation according to recurrence risk is a prominent controversy in the radiation treatment of DCIS,” they wrote.
 

Four-way trial

To see whether a tumor-bed boost following WBI and alternative WBI fractionation schedules could improve outcomes for patients with non–low-risk DCIS, the researchers enrolled patients and assigned them on an equal basis to one of four groups, in which they would receive either conventional or hypofractionated WBI with or without a tumor-bed boost.

The conventional WBI regimen consisted of a total of 50 Gy delivered over 25 fractions. The hypofractionated regimen consisted of a total dose of 42.5 Gy delivered in 16 fractions. Patients assigned to get a boost dose to the tumor bed received an additional 16 Gy in eight fractions after WBI.

Of the 1,608 patients enrolled who eligible for randomization, 803 received a boost dose and 805 did not. As noted before, the risk of recurrence at 5 years was significantly lower with boosting, with 5-year free-from-local-recurrence rates of 97.1%, compared with 92.7% for patients who did not get a tumor-bed boost.

There were no significant differences according to fractionation schedule, however: among all randomly assigned patients the rate of 5-year freedom from recurrence was 94.9% for both the conventionally fractionated and hypofractionated WBI groups.

Not surprisingly, patients who received the boost dose had higher rates of grade 2 or greater toxicities, including breast pain (14% vs. 10%; P = .03) and induration (14% vs. 6%; P < .001).

The study was supported by the National Health and Medical Research Council of Australia, Susan G. Komen for the Cure, Breast Cancer Now, OncoSuisse, Dutch Cancer Society, and Canadian Cancer Trials Group. Dr. Chua disclosed grant support from the organizations and others.

Patients with low-risk nasopharyngeal carcinomas may be safely treated with radiotherapy alone, without compromising survival outcomes and with lower toxicity, compared with a combination of radiation and concurrent chemoradiotherapy, a team of investigators in China suggest.

In a randomized phase 3 trial, there was no significant difference in 3-year failure-free survival (FFS) rates for patients with low-risk stage 2/T3N0 nasopharyngeal carcinoma (NPC) who received intensity-modulated radiation therapy (IMRT) alone, compared with patients who received a combination of IMRT and concurrent cisplatin-based chemoradiotherapy.

The trial met its primary endpoint of non-inferiority for IMRT alone with 3-year FFS rates of 90.5% for 169 patients randomized to IMRT alone, and 91.9% for the combined therapy (P for noninferiority < .001).

“The trial results were different from studies on stage 2 NPC conducted in the two-dimensional conventional radiotherapy era that showed concurrent cisplatin chemotherapy provided radio sensitization to enhance locoregional control and overall survival,” investigators Ling-Long Tang, MD and colleagues from Sun Yat-Sen University in Guanzhou, China, reported in JAMA.

“It is possible that IMRT may have maximized locoregional control in many patients with low-risk NPC, which is generally radiosensitive, as supported by more than 90% locoregional relapse-free survival rates in almost all contemporary series for stage 2 disease,” they wrote.

In addition to meeting the primary noninferiority endpoint, there were no significant differences in secondary efficacy endpoints of overall survival, locoregional relapse, or metastasis.

The safety analysis, however, showed that patients in IMRT-alone group had significantly fewer grade 3 or 4 adverse events (17% vs. 46%, 95% with a significant 95% confidence interval for the difference), and patients who received only IMRT had significantly better quality-of-life scores during radiotherapy across multiple domains.

“I expect that as a result of this study, most patients with stage 2 [Epstein-Barr virus]–associated NPC will be treated with IMRT alone,” said Lori Wirth, MD, a head and neck cancer specialist at Massachusetts General Hospital Cancer Center in Boston.

“This noninferiority study showed that IMRT alone (without concurrent cisplatin) does not lead to greater locoregional relapse or distant metastatic disease. Not only that, but also the study confirmed what we would expect that IMRT alone without concurrent cisplatin is better tolerated with less acute toxicity and improved quality of life compared to chemoRT,” she said in a comment.

“One question that remains is related to long-term toxicity: ‘Will the IMRT-alone patients also experience less lifelong toxicity from treatment?’ If yes, that would be great,” she said.

The open-label, phase 3 trial was conducted at five Chinese hospitals with a total of 341 patients randomly assigned to IMRT alone or with concurrent chemoradiotherapy consisting of IMRT with cisplatin 100 mg/m² every 3 weeks for three cycles.

As noted before, the primary endpoint was 3-year FFS, defined as time from randomization to any disease relapse or death. The predetermined noninferiority margin was 10%.

Secondary endpoints included overall survival, locoregional relapse-free survival, distant metastasis-free survival, adverse events, and health-related quality of life measured by the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire for physical function, symptom control, or health-related quality of life.

The study was supported by grants from the National Natural Science Foundation of China, Natural Science Foundation of Guangdong Province, Key-Area Research and Development Program of Guangdong Province, Overseas Expertise Introduction Project for Discipline Innovatio, and the Sun Yat-Sen University Clinical Research 5010 Program. The authors and Dr. Wirth reported no relevant conflicts of interest.

Patients with low-risk nasopharyngeal carcinomas may be safely treated with radiotherapy alone, without compromising survival outcomes and with lower toxicity, compared with a combination of radiation and concurrent chemoradiotherapy, a team of investigators in China suggest.

In a randomized phase 3 trial, there was no significant difference in 3-year failure-free survival (FFS) rates for patients with low-risk stage 2/T3N0 nasopharyngeal carcinoma (NPC) who received intensity-modulated radiation therapy (IMRT) alone, compared with patients who received a combination of IMRT and concurrent cisplatin-based chemoradiotherapy.

The trial met its primary endpoint of non-inferiority for IMRT alone with 3-year FFS rates of 90.5% for 169 patients randomized to IMRT alone, and 91.9% for the combined therapy (P for noninferiority < .001).

“The trial results were different from studies on stage 2 NPC conducted in the two-dimensional conventional radiotherapy era that showed concurrent cisplatin chemotherapy provided radio sensitization to enhance locoregional control and overall survival,” investigators Ling-Long Tang, MD and colleagues from Sun Yat-Sen University in Guanzhou, China, reported in JAMA.

“It is possible that IMRT may have maximized locoregional control in many patients with low-risk NPC, which is generally radiosensitive, as supported by more than 90% locoregional relapse-free survival rates in almost all contemporary series for stage 2 disease,” they wrote.

In addition to meeting the primary noninferiority endpoint, there were no significant differences in secondary efficacy endpoints of overall survival, locoregional relapse, or metastasis.

The safety analysis, however, showed that patients in IMRT-alone group had significantly fewer grade 3 or 4 adverse events (17% vs. 46%, 95% with a significant 95% confidence interval for the difference), and patients who received only IMRT had significantly better quality-of-life scores during radiotherapy across multiple domains.

“I expect that as a result of this study, most patients with stage 2 [Epstein-Barr virus]–associated NPC will be treated with IMRT alone,” said Lori Wirth, MD, a head and neck cancer specialist at Massachusetts General Hospital Cancer Center in Boston.

“This noninferiority study showed that IMRT alone (without concurrent cisplatin) does not lead to greater locoregional relapse or distant metastatic disease. Not only that, but also the study confirmed what we would expect that IMRT alone without concurrent cisplatin is better tolerated with less acute toxicity and improved quality of life compared to chemoRT,” she said in a comment.

“One question that remains is related to long-term toxicity: ‘Will the IMRT-alone patients also experience less lifelong toxicity from treatment?’ If yes, that would be great,” she said.

The open-label, phase 3 trial was conducted at five Chinese hospitals with a total of 341 patients randomly assigned to IMRT alone or with concurrent chemoradiotherapy consisting of IMRT with cisplatin 100 mg/m² every 3 weeks for three cycles.

As noted before, the primary endpoint was 3-year FFS, defined as time from randomization to any disease relapse or death. The predetermined noninferiority margin was 10%.

Secondary endpoints included overall survival, locoregional relapse-free survival, distant metastasis-free survival, adverse events, and health-related quality of life measured by the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire for physical function, symptom control, or health-related quality of life.

The study was supported by grants from the National Natural Science Foundation of China, Natural Science Foundation of Guangdong Province, Key-Area Research and Development Program of Guangdong Province, Overseas Expertise Introduction Project for Discipline Innovatio, and the Sun Yat-Sen University Clinical Research 5010 Program. The authors and Dr. Wirth reported no relevant conflicts of interest.

Patients with low-risk nasopharyngeal carcinomas may be safely treated with radiotherapy alone, without compromising survival outcomes and with lower toxicity, compared with a combination of radiation and concurrent chemoradiotherapy, a team of investigators in China suggest.

In a randomized phase 3 trial, there was no significant difference in 3-year failure-free survival (FFS) rates for patients with low-risk stage 2/T3N0 nasopharyngeal carcinoma (NPC) who received intensity-modulated radiation therapy (IMRT) alone, compared with patients who received a combination of IMRT and concurrent cisplatin-based chemoradiotherapy.

The trial met its primary endpoint of non-inferiority for IMRT alone with 3-year FFS rates of 90.5% for 169 patients randomized to IMRT alone, and 91.9% for the combined therapy (P for noninferiority < .001).

“The trial results were different from studies on stage 2 NPC conducted in the two-dimensional conventional radiotherapy era that showed concurrent cisplatin chemotherapy provided radio sensitization to enhance locoregional control and overall survival,” investigators Ling-Long Tang, MD and colleagues from Sun Yat-Sen University in Guanzhou, China, reported in JAMA.

“It is possible that IMRT may have maximized locoregional control in many patients with low-risk NPC, which is generally radiosensitive, as supported by more than 90% locoregional relapse-free survival rates in almost all contemporary series for stage 2 disease,” they wrote.

In addition to meeting the primary noninferiority endpoint, there were no significant differences in secondary efficacy endpoints of overall survival, locoregional relapse, or metastasis.

The safety analysis, however, showed that patients in IMRT-alone group had significantly fewer grade 3 or 4 adverse events (17% vs. 46%, 95% with a significant 95% confidence interval for the difference), and patients who received only IMRT had significantly better quality-of-life scores during radiotherapy across multiple domains.

“I expect that as a result of this study, most patients with stage 2 [Epstein-Barr virus]–associated NPC will be treated with IMRT alone,” said Lori Wirth, MD, a head and neck cancer specialist at Massachusetts General Hospital Cancer Center in Boston.

“This noninferiority study showed that IMRT alone (without concurrent cisplatin) does not lead to greater locoregional relapse or distant metastatic disease. Not only that, but also the study confirmed what we would expect that IMRT alone without concurrent cisplatin is better tolerated with less acute toxicity and improved quality of life compared to chemoRT,” she said in a comment.

“One question that remains is related to long-term toxicity: ‘Will the IMRT-alone patients also experience less lifelong toxicity from treatment?’ If yes, that would be great,” she said.

The open-label, phase 3 trial was conducted at five Chinese hospitals with a total of 341 patients randomly assigned to IMRT alone or with concurrent chemoradiotherapy consisting of IMRT with cisplatin 100 mg/m² every 3 weeks for three cycles.

As noted before, the primary endpoint was 3-year FFS, defined as time from randomization to any disease relapse or death. The predetermined noninferiority margin was 10%.

Secondary endpoints included overall survival, locoregional relapse-free survival, distant metastasis-free survival, adverse events, and health-related quality of life measured by the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire for physical function, symptom control, or health-related quality of life.

The study was supported by grants from the National Natural Science Foundation of China, Natural Science Foundation of Guangdong Province, Key-Area Research and Development Program of Guangdong Province, Overseas Expertise Introduction Project for Discipline Innovatio, and the Sun Yat-Sen University Clinical Research 5010 Program. The authors and Dr. Wirth reported no relevant conflicts of interest.

There is a growing body of evidence to show that air pollution is a major risk factor for lung cancer among never-smokers, although there is less certainty about the duration of exposure to fine particulate matter in ambient air as it relates to risk for lung cancer.

But as Canadian researchers now report, even 20 years of data on cumulative exposure to air pollution may underestimate the magnitude of the effect, especially among people diagnosed with lung cancer who have migrated from regions where heavy air pollution is the norm.

In a study of Canadian women with newly diagnosed lung cancer who never smoked, Renelle Myers, MD, FRCPC, from the University of British Columbia in Vancouver and colleagues found that shorter-term assessment of cumulative exposure to ambient air particles smaller than 2.5 microns (PM2.5) may underestimate the health effects of chronic exposure to pollution, especially among those patients who had migrated to Canada after living in areas of high PM2.5 exposure for long periods of time.

“Our study points to the importance of incorporating this long-term cumulative exposure to air pollutants in the assessment of individual lung cancer risk, of course in combination with traditional risk factors, and depending on the country of residence, I think that even a 20-year cumulative exposure may underestimate the effects of PM2.5, as we’re not capturing childhood or adolescent exposure when the lung is developing, and what effect that will have,” she said in an oral abstract presented at the World Conference on Lung Cancer.
 

Satellite data on local pollution

With the objective of comparing cumulative 3-year vs. 20-year exposure to PM2.5 in women who had never smoked and had a new diagnosis of lung cancer, Dr. Myers and colleagues conducted a cross-sectional study.

They recruited a total of 236 women and had them fill out a detailed residential history questionnaire, and demographic details including age, race, country of birth, arrival in Canada for those born out of the country, occupations, family history of lung cancer, and exposure to second-hand smoke.

The investigators linked local addresses or postal to satellite-derived data on local PM2.5 levels, which first became available in 1996.

The median age of participants was 66.1 years. Of the 236 participants, 190 (80.5%) were born outside of Canada, and came to the country at the median age of 45. About half of all participants came from mainland China or Hong Kong, and another one-third came from elsewhere in Asia.

Tumor histologies included adenocarcinomas in 219 patients, squamous cell carcinoma in 1, and other types in 16 patients. Slightly more than half of the patients (55.%) had stage III or IV disease at diagnosis. In all, 106 of 227 evaluable patients had EGFR mutations.

3 years not enough

Among the foreign-born patients, only 4 (2%) had 3-year cumulative PM2.5 exposure greater than 10 mcg/m³, but 38 (20%) had 20-year cumulative exposure greater than 10 mcg/m³ (P < .0001).

All of the patients had cumulative PM2.5 exposures greater than 5 mcg/m³.

Comparing patients with and without EGFR mutations, the investigators found that higher 3-year cumulative PM2.5 exposure was significantly associated with EGFR mutations compared with nonmutated cancers (P = .049), but there was no significant association with higher 20-year cumulative exposures.

“The significance of this study really captures that short term or at least less than 3-year cumulative exposure risk for PM2.5 will probably underestimate the adverse effects that chronic exposure to air pollution has, especially among patients who lived elsewhere that may have had higher exposure throughout their lifetime than where you actually meet them,” Dr. Myers said in a media briefing held prior to her presentation.
 

Lung cancer in female nonsmokers

During the oral abstract session, invited discussant Chang-Chuan Chan, ScD, National Taiwan University, Taipei, said that the study’s focus on female patients with lung cancer is important. He pointed to a 2019 study examining the relationship between air pollution and lung cancer among nonsmokers in Taiwan, in which the authors found that, although smoking levels among women remained low over time (about 5%), the incidence of lung adenocarcinomas among women increased from 7.05 per 100,000 in 1995, to 24.22 per 100,000 in 2015.

The authors of that study also found that changes in PM2.5 levels in Taiwan were predictive of fluctuations in lung cancer prevalence in never-smokers.

“We’re moving from 50-year studies of smoking to these new issues of air pollution, asbestos, and radon, and I think it’s better that these three factors can be combined together,” he said at the meeting sponsored by the International Association for the Study of Lung Cancer.

The study was supported by the BC Cancer Foundation, Terry Fox Research Institute, and VGH-UBC Hospital Foundation. Dr. Myers and Dr. Chan reported having no financial conflicts of interest to disclose.

There is a growing body of evidence to show that air pollution is a major risk factor for lung cancer among never-smokers, although there is less certainty about the duration of exposure to fine particulate matter in ambient air as it relates to risk for lung cancer.

But as Canadian researchers now report, even 20 years of data on cumulative exposure to air pollution may underestimate the magnitude of the effect, especially among people diagnosed with lung cancer who have migrated from regions where heavy air pollution is the norm.

In a study of Canadian women with newly diagnosed lung cancer who never smoked, Renelle Myers, MD, FRCPC, from the University of British Columbia in Vancouver and colleagues found that shorter-term assessment of cumulative exposure to ambient air particles smaller than 2.5 microns (PM2.5) may underestimate the health effects of chronic exposure to pollution, especially among those patients who had migrated to Canada after living in areas of high PM2.5 exposure for long periods of time.

“Our study points to the importance of incorporating this long-term cumulative exposure to air pollutants in the assessment of individual lung cancer risk, of course in combination with traditional risk factors, and depending on the country of residence, I think that even a 20-year cumulative exposure may underestimate the effects of PM2.5, as we’re not capturing childhood or adolescent exposure when the lung is developing, and what effect that will have,” she said in an oral abstract presented at the World Conference on Lung Cancer.
 

Satellite data on local pollution

With the objective of comparing cumulative 3-year vs. 20-year exposure to PM2.5 in women who had never smoked and had a new diagnosis of lung cancer, Dr. Myers and colleagues conducted a cross-sectional study.

They recruited a total of 236 women and had them fill out a detailed residential history questionnaire, and demographic details including age, race, country of birth, arrival in Canada for those born out of the country, occupations, family history of lung cancer, and exposure to second-hand smoke.

The investigators linked local addresses or postal to satellite-derived data on local PM2.5 levels, which first became available in 1996.

The median age of participants was 66.1 years. Of the 236 participants, 190 (80.5%) were born outside of Canada, and came to the country at the median age of 45. About half of all participants came from mainland China or Hong Kong, and another one-third came from elsewhere in Asia.

Tumor histologies included adenocarcinomas in 219 patients, squamous cell carcinoma in 1, and other types in 16 patients. Slightly more than half of the patients (55.%) had stage III or IV disease at diagnosis. In all, 106 of 227 evaluable patients had EGFR mutations.

3 years not enough

Among the foreign-born patients, only 4 (2%) had 3-year cumulative PM2.5 exposure greater than 10 mcg/m³, but 38 (20%) had 20-year cumulative exposure greater than 10 mcg/m³ (P < .0001).

All of the patients had cumulative PM2.5 exposures greater than 5 mcg/m³.

Comparing patients with and without EGFR mutations, the investigators found that higher 3-year cumulative PM2.5 exposure was significantly associated with EGFR mutations compared with nonmutated cancers (P = .049), but there was no significant association with higher 20-year cumulative exposures.

“The significance of this study really captures that short term or at least less than 3-year cumulative exposure risk for PM2.5 will probably underestimate the adverse effects that chronic exposure to air pollution has, especially among patients who lived elsewhere that may have had higher exposure throughout their lifetime than where you actually meet them,” Dr. Myers said in a media briefing held prior to her presentation.
 

Lung cancer in female nonsmokers

During the oral abstract session, invited discussant Chang-Chuan Chan, ScD, National Taiwan University, Taipei, said that the study’s focus on female patients with lung cancer is important. He pointed to a 2019 study examining the relationship between air pollution and lung cancer among nonsmokers in Taiwan, in which the authors found that, although smoking levels among women remained low over time (about 5%), the incidence of lung adenocarcinomas among women increased from 7.05 per 100,000 in 1995, to 24.22 per 100,000 in 2015.

The authors of that study also found that changes in PM2.5 levels in Taiwan were predictive of fluctuations in lung cancer prevalence in never-smokers.

“We’re moving from 50-year studies of smoking to these new issues of air pollution, asbestos, and radon, and I think it’s better that these three factors can be combined together,” he said at the meeting sponsored by the International Association for the Study of Lung Cancer.

The study was supported by the BC Cancer Foundation, Terry Fox Research Institute, and VGH-UBC Hospital Foundation. Dr. Myers and Dr. Chan reported having no financial conflicts of interest to disclose.

There is a growing body of evidence to show that air pollution is a major risk factor for lung cancer among never-smokers, although there is less certainty about the duration of exposure to fine particulate matter in ambient air as it relates to risk for lung cancer.

But as Canadian researchers now report, even 20 years of data on cumulative exposure to air pollution may underestimate the magnitude of the effect, especially among people diagnosed with lung cancer who have migrated from regions where heavy air pollution is the norm.

In a study of Canadian women with newly diagnosed lung cancer who never smoked, Renelle Myers, MD, FRCPC, from the University of British Columbia in Vancouver and colleagues found that shorter-term assessment of cumulative exposure to ambient air particles smaller than 2.5 microns (PM2.5) may underestimate the health effects of chronic exposure to pollution, especially among those patients who had migrated to Canada after living in areas of high PM2.5 exposure for long periods of time.

“Our study points to the importance of incorporating this long-term cumulative exposure to air pollutants in the assessment of individual lung cancer risk, of course in combination with traditional risk factors, and depending on the country of residence, I think that even a 20-year cumulative exposure may underestimate the effects of PM2.5, as we’re not capturing childhood or adolescent exposure when the lung is developing, and what effect that will have,” she said in an oral abstract presented at the World Conference on Lung Cancer.
 

Satellite data on local pollution

With the objective of comparing cumulative 3-year vs. 20-year exposure to PM2.5 in women who had never smoked and had a new diagnosis of lung cancer, Dr. Myers and colleagues conducted a cross-sectional study.

They recruited a total of 236 women and had them fill out a detailed residential history questionnaire, and demographic details including age, race, country of birth, arrival in Canada for those born out of the country, occupations, family history of lung cancer, and exposure to second-hand smoke.

The investigators linked local addresses or postal to satellite-derived data on local PM2.5 levels, which first became available in 1996.

The median age of participants was 66.1 years. Of the 236 participants, 190 (80.5%) were born outside of Canada, and came to the country at the median age of 45. About half of all participants came from mainland China or Hong Kong, and another one-third came from elsewhere in Asia.

Tumor histologies included adenocarcinomas in 219 patients, squamous cell carcinoma in 1, and other types in 16 patients. Slightly more than half of the patients (55.%) had stage III or IV disease at diagnosis. In all, 106 of 227 evaluable patients had EGFR mutations.

3 years not enough

Among the foreign-born patients, only 4 (2%) had 3-year cumulative PM2.5 exposure greater than 10 mcg/m³, but 38 (20%) had 20-year cumulative exposure greater than 10 mcg/m³ (P < .0001).

All of the patients had cumulative PM2.5 exposures greater than 5 mcg/m³.

Comparing patients with and without EGFR mutations, the investigators found that higher 3-year cumulative PM2.5 exposure was significantly associated with EGFR mutations compared with nonmutated cancers (P = .049), but there was no significant association with higher 20-year cumulative exposures.

“The significance of this study really captures that short term or at least less than 3-year cumulative exposure risk for PM2.5 will probably underestimate the adverse effects that chronic exposure to air pollution has, especially among patients who lived elsewhere that may have had higher exposure throughout their lifetime than where you actually meet them,” Dr. Myers said in a media briefing held prior to her presentation.
 

Lung cancer in female nonsmokers

During the oral abstract session, invited discussant Chang-Chuan Chan, ScD, National Taiwan University, Taipei, said that the study’s focus on female patients with lung cancer is important. He pointed to a 2019 study examining the relationship between air pollution and lung cancer among nonsmokers in Taiwan, in which the authors found that, although smoking levels among women remained low over time (about 5%), the incidence of lung adenocarcinomas among women increased from 7.05 per 100,000 in 1995, to 24.22 per 100,000 in 2015.

The authors of that study also found that changes in PM2.5 levels in Taiwan were predictive of fluctuations in lung cancer prevalence in never-smokers.

“We’re moving from 50-year studies of smoking to these new issues of air pollution, asbestos, and radon, and I think it’s better that these three factors can be combined together,” he said at the meeting sponsored by the International Association for the Study of Lung Cancer.

The study was supported by the BC Cancer Foundation, Terry Fox Research Institute, and VGH-UBC Hospital Foundation. Dr. Myers and Dr. Chan reported having no financial conflicts of interest to disclose.

Nearly one-third of smokers who were offered smoking cessation support on the spot when they showed up for lung cancer screening remained off cigarettes 1 year later, a quit-smoking rate considerably higher than that reported in clinical studies, investigators from the United Kingdom found.

When they added a stop-smoking component to the Yorkshire Lung Screening Trial, Rachael Murray, PhD, and colleagues at the University of Nottingham (England), found that immediately offering a combination of behavioral support and pharmacotherapy to help smokers kick the habit resulted in a 7-day validated point prevalent abstinence rate at 3 months of 30% among smokers randomized to a standard smoking cessation program, and 33.6% among patients randomized to also receive a personalized intervention that included images of their heart and lungs to demonstrate the harmful effects of tobacco.

In contrast, smoking cessation rates reported in trials of lung cancer screening have ranged from approximately 10% to 20%.

Although there was no overall statistical difference in quit-smoking rates between the standard and enhanced intervention arms of the study, the investigators found that women, but not men, were significantly more likely to quit when shown the heart and lung images, compared with those who received the standard smoking cessation support, Dr. Murray said at the World Conference on Lung Cancer held this week in Vienna.

“I think having smoking cessation as an integrated part of the lung cancer track was really positively received by our participants, particularly through having a physical presence and being conveniently located within the setting,” she said in a presidential symposium highlighting the best abstracts presented at the meeting.

“We’ve offered a high-intensity intervention, which is not going to be cheap to offer but I think is really important for these individuals with complex smoking histories and multiple comorbidities,” she added.
 

No judgment

In an interview, Dr. Murray noted that colocating stop-smoking services with lung screening is important for capturing smokers who may have the will but not the means to quit, and that participants especially appreciated the offer of help without the usual condescending attitude.

“We’re not an add-on: We’re there and physically present at the time of the lung health check,” she said. “It’s a standard of care that our smoking cessation advisers are able to provide. It’s very nonjudgmental and very holistic, providing social support that these people need. They’ve got long smoking histories, and they’re often made to feel guilty for that, and just being able to approach them in a nonjudgmental way makes a big difference.”

Smoking cessation is known to be the most effective way to reduce lung cancer deaths, Dr. Murray said in her presentation, pointing to a 2020 study by University of Michigan researchers showing that adding tobacco treatment to lung cancer screening can reduce deaths by 14% and increase the overall number of life-years gained by 81%.
 

Reduce smoking?

To see whether adding a personalized on-site smoking cessation program to lung cancer screening could improve quit-smoking rates, Dr. Murray and colleagues enrolled 1,003 smokers who attended the lung cancer screening program and randomly assigned them to either the intervention arm with personalized feedback, supportive communications, ongoing behavioral support and pharmacotherapy, or to a control arm consisting of ongoing behavioral support and pharmacotherapy.

Participants in the intervention arm were shown CT scans of the heart and lungs plus drawings highlighting coronary artery calcification and areas of their lungs damaged by smoking, and information on how quitting smoking can help to improve their health. The smoking cessation advisers followed a tightly controlled script to ensure that the messages were delivered in a uniform fashion to all participants.

As noted before, rates of 7-day validated point prevalent abstinence, measured by exhaled carbon dioxide, were 33.8% in the intervention arm, and 30% in the control arm. The respective costs per quitter were £521.30 ($630.77) and £412.80 ($499.48).

The validated 12-month smoking-free rates were 29.% in the intervention arm, and 28.6% in the control arm. None of the differences were statistically significant.

However, when they looked at between-arm differences by sex, the investigators found that significantly more women assigned to the intervention arm remained abstinent at 3 months, with rates of 33.9% compared with 23.1% of controls, a difference that translated into an unadjusted odds ratio of 1.70 favoring the intervention among women (P = .008).
 

Effective and durable

“My interpretation of this study is that the abstinence rates were very high, and this in fact was durable because this effect was maintained after 12 months,” commented invited discussant and smoking cessation expert Jacek Jassem, MD, from the University of Gdansk (Poland).

He said that the lack of a difference between the intervention and control arms might be attributable to lower levels of concern about heart disease or emphysema among participants, or possibly to the efficacy of the on-site support program itself.

The differences in efficacy of the intervention between men and women suggest that there may be a need for a sex- or gender-adapted approach, he said at the conference sponsored by the International Association for the Study of Lung Cancer.

“Lung cancer screening is a unique opportunity to motivate smoking cessation. All cancer screening programs should included best available and ongoing cessation support, and please, don’t blame smoking persons: Be compassionate, and helpful, and smile like our British colleagues did,” he concluded.

The study was supported by Yorkshire Cancer Research. Dr. Murray and Dr. Jassem reported no financial conflicts of interest.

Nearly one-third of smokers who were offered smoking cessation support on the spot when they showed up for lung cancer screening remained off cigarettes 1 year later, a quit-smoking rate considerably higher than that reported in clinical studies, investigators from the United Kingdom found.

When they added a stop-smoking component to the Yorkshire Lung Screening Trial, Rachael Murray, PhD, and colleagues at the University of Nottingham (England), found that immediately offering a combination of behavioral support and pharmacotherapy to help smokers kick the habit resulted in a 7-day validated point prevalent abstinence rate at 3 months of 30% among smokers randomized to a standard smoking cessation program, and 33.6% among patients randomized to also receive a personalized intervention that included images of their heart and lungs to demonstrate the harmful effects of tobacco.

In contrast, smoking cessation rates reported in trials of lung cancer screening have ranged from approximately 10% to 20%.

Although there was no overall statistical difference in quit-smoking rates between the standard and enhanced intervention arms of the study, the investigators found that women, but not men, were significantly more likely to quit when shown the heart and lung images, compared with those who received the standard smoking cessation support, Dr. Murray said at the World Conference on Lung Cancer held this week in Vienna.

“I think having smoking cessation as an integrated part of the lung cancer track was really positively received by our participants, particularly through having a physical presence and being conveniently located within the setting,” she said in a presidential symposium highlighting the best abstracts presented at the meeting.

“We’ve offered a high-intensity intervention, which is not going to be cheap to offer but I think is really important for these individuals with complex smoking histories and multiple comorbidities,” she added.
 

No judgment

In an interview, Dr. Murray noted that colocating stop-smoking services with lung screening is important for capturing smokers who may have the will but not the means to quit, and that participants especially appreciated the offer of help without the usual condescending attitude.

“We’re not an add-on: We’re there and physically present at the time of the lung health check,” she said. “It’s a standard of care that our smoking cessation advisers are able to provide. It’s very nonjudgmental and very holistic, providing social support that these people need. They’ve got long smoking histories, and they’re often made to feel guilty for that, and just being able to approach them in a nonjudgmental way makes a big difference.”

Smoking cessation is known to be the most effective way to reduce lung cancer deaths, Dr. Murray said in her presentation, pointing to a 2020 study by University of Michigan researchers showing that adding tobacco treatment to lung cancer screening can reduce deaths by 14% and increase the overall number of life-years gained by 81%.
 

Reduce smoking?

To see whether adding a personalized on-site smoking cessation program to lung cancer screening could improve quit-smoking rates, Dr. Murray and colleagues enrolled 1,003 smokers who attended the lung cancer screening program and randomly assigned them to either the intervention arm with personalized feedback, supportive communications, ongoing behavioral support and pharmacotherapy, or to a control arm consisting of ongoing behavioral support and pharmacotherapy.

Participants in the intervention arm were shown CT scans of the heart and lungs plus drawings highlighting coronary artery calcification and areas of their lungs damaged by smoking, and information on how quitting smoking can help to improve their health. The smoking cessation advisers followed a tightly controlled script to ensure that the messages were delivered in a uniform fashion to all participants.

As noted before, rates of 7-day validated point prevalent abstinence, measured by exhaled carbon dioxide, were 33.8% in the intervention arm, and 30% in the control arm. The respective costs per quitter were £521.30 ($630.77) and £412.80 ($499.48).

The validated 12-month smoking-free rates were 29.% in the intervention arm, and 28.6% in the control arm. None of the differences were statistically significant.

However, when they looked at between-arm differences by sex, the investigators found that significantly more women assigned to the intervention arm remained abstinent at 3 months, with rates of 33.9% compared with 23.1% of controls, a difference that translated into an unadjusted odds ratio of 1.70 favoring the intervention among women (P = .008).
 

Effective and durable

“My interpretation of this study is that the abstinence rates were very high, and this in fact was durable because this effect was maintained after 12 months,” commented invited discussant and smoking cessation expert Jacek Jassem, MD, from the University of Gdansk (Poland).

He said that the lack of a difference between the intervention and control arms might be attributable to lower levels of concern about heart disease or emphysema among participants, or possibly to the efficacy of the on-site support program itself.

The differences in efficacy of the intervention between men and women suggest that there may be a need for a sex- or gender-adapted approach, he said at the conference sponsored by the International Association for the Study of Lung Cancer.

“Lung cancer screening is a unique opportunity to motivate smoking cessation. All cancer screening programs should included best available and ongoing cessation support, and please, don’t blame smoking persons: Be compassionate, and helpful, and smile like our British colleagues did,” he concluded.

The study was supported by Yorkshire Cancer Research. Dr. Murray and Dr. Jassem reported no financial conflicts of interest.

Nearly one-third of smokers who were offered smoking cessation support on the spot when they showed up for lung cancer screening remained off cigarettes 1 year later, a quit-smoking rate considerably higher than that reported in clinical studies, investigators from the United Kingdom found.

When they added a stop-smoking component to the Yorkshire Lung Screening Trial, Rachael Murray, PhD, and colleagues at the University of Nottingham (England), found that immediately offering a combination of behavioral support and pharmacotherapy to help smokers kick the habit resulted in a 7-day validated point prevalent abstinence rate at 3 months of 30% among smokers randomized to a standard smoking cessation program, and 33.6% among patients randomized to also receive a personalized intervention that included images of their heart and lungs to demonstrate the harmful effects of tobacco.

In contrast, smoking cessation rates reported in trials of lung cancer screening have ranged from approximately 10% to 20%.

Although there was no overall statistical difference in quit-smoking rates between the standard and enhanced intervention arms of the study, the investigators found that women, but not men, were significantly more likely to quit when shown the heart and lung images, compared with those who received the standard smoking cessation support, Dr. Murray said at the World Conference on Lung Cancer held this week in Vienna.

“I think having smoking cessation as an integrated part of the lung cancer track was really positively received by our participants, particularly through having a physical presence and being conveniently located within the setting,” she said in a presidential symposium highlighting the best abstracts presented at the meeting.

“We’ve offered a high-intensity intervention, which is not going to be cheap to offer but I think is really important for these individuals with complex smoking histories and multiple comorbidities,” she added.
 

No judgment

In an interview, Dr. Murray noted that colocating stop-smoking services with lung screening is important for capturing smokers who may have the will but not the means to quit, and that participants especially appreciated the offer of help without the usual condescending attitude.

“We’re not an add-on: We’re there and physically present at the time of the lung health check,” she said. “It’s a standard of care that our smoking cessation advisers are able to provide. It’s very nonjudgmental and very holistic, providing social support that these people need. They’ve got long smoking histories, and they’re often made to feel guilty for that, and just being able to approach them in a nonjudgmental way makes a big difference.”

Smoking cessation is known to be the most effective way to reduce lung cancer deaths, Dr. Murray said in her presentation, pointing to a 2020 study by University of Michigan researchers showing that adding tobacco treatment to lung cancer screening can reduce deaths by 14% and increase the overall number of life-years gained by 81%.
 

Reduce smoking?

To see whether adding a personalized on-site smoking cessation program to lung cancer screening could improve quit-smoking rates, Dr. Murray and colleagues enrolled 1,003 smokers who attended the lung cancer screening program and randomly assigned them to either the intervention arm with personalized feedback, supportive communications, ongoing behavioral support and pharmacotherapy, or to a control arm consisting of ongoing behavioral support and pharmacotherapy.

Participants in the intervention arm were shown CT scans of the heart and lungs plus drawings highlighting coronary artery calcification and areas of their lungs damaged by smoking, and information on how quitting smoking can help to improve their health. The smoking cessation advisers followed a tightly controlled script to ensure that the messages were delivered in a uniform fashion to all participants.

As noted before, rates of 7-day validated point prevalent abstinence, measured by exhaled carbon dioxide, were 33.8% in the intervention arm, and 30% in the control arm. The respective costs per quitter were £521.30 ($630.77) and £412.80 ($499.48).

The validated 12-month smoking-free rates were 29.% in the intervention arm, and 28.6% in the control arm. None of the differences were statistically significant.

However, when they looked at between-arm differences by sex, the investigators found that significantly more women assigned to the intervention arm remained abstinent at 3 months, with rates of 33.9% compared with 23.1% of controls, a difference that translated into an unadjusted odds ratio of 1.70 favoring the intervention among women (P = .008).
 

Effective and durable

“My interpretation of this study is that the abstinence rates were very high, and this in fact was durable because this effect was maintained after 12 months,” commented invited discussant and smoking cessation expert Jacek Jassem, MD, from the University of Gdansk (Poland).

He said that the lack of a difference between the intervention and control arms might be attributable to lower levels of concern about heart disease or emphysema among participants, or possibly to the efficacy of the on-site support program itself.

The differences in efficacy of the intervention between men and women suggest that there may be a need for a sex- or gender-adapted approach, he said at the conference sponsored by the International Association for the Study of Lung Cancer.

“Lung cancer screening is a unique opportunity to motivate smoking cessation. All cancer screening programs should included best available and ongoing cessation support, and please, don’t blame smoking persons: Be compassionate, and helpful, and smile like our British colleagues did,” he concluded.

The study was supported by Yorkshire Cancer Research. Dr. Murray and Dr. Jassem reported no financial conflicts of interest.

The question of whether primary transoral surgery or radiation is a better treatment deescalation option for patients with low-risk human papillomavirus (HPV)-related oropharyngeal squamous cell carcinomas (OPSCCs) is still unanswered, despite the best efforts of investigators in the randomized phase 2 ORATOR2 trial.

Transoral surgery was associated with an unacceptable risk of grade 5 toxic effects, but patients in both trial arms achieved good swallowing outcomes at 1 year, the study found.

The trial, begun in early 2018, was halted in late 2020 because of safety concerns after 2 of 31 patients randomized to surgery died from treatment-related causes.

But the story doesn’t end there, investigators and observers say.

In both trial arms, patients had good swallowing outcomes and other favorable quality-of-life measures at 1 year, and it’s too early to tell whether the transoral surgery (TOS) was associated with an unacceptable risk of grade 5 toxic effects, but patients in both trial arms achieved good swallowing outcomes at 1 year, wrote investigators Daniel A. Palma, MD, from Western University in London, Ontario, and colleagues in JAMA Oncology.

Nonetheless, “the results of this randomized clinical trial suggest that a primary [surgery] approach was associated with an up-front risk of treatment-related mortality, and caution is warranted with this approach,” the investigators wrote.
 

Hard to interpret

“It’s challenging to do that study in Canada, frankly, and it’s hard to make much of it, with the trial being terminated early,” said Neil D. Gross, MD, a head and neck cancer surgeon-scientist with MD Anderson Cancer Center, Houston, in an interview.

Dr. Gross and Sewit Teckie, MD, system chief of radiation oncology at NYC Health and Hospitals, cowrote an editorial accompanying the ORATOR2 results that was published in JAMA Oncology.

“There’s a huge difference in the volume of transoral robotic surgery performed in the United States, compared with Canada – it’s night and day, and that’s due to the different kind of healthcare systems that we have,” Dr. Gross said.

As he and Dr. Teckie noted, the combined mortality rate for surgical patients in the multicenter ORATOR2 and the earlier ORATOR trial, which was not limited to patients with HPV-related cancers, was 3.6%.

In contrast, in the ECOG-ACRIN 3311 trial comparing standard radiation with reduced dose radiation following TOS in patients with intermediate-risk HPV-positive oropharynx cancer, there was only one death among 495 patients, for a mortality rate of 0.2%.

“In the United States, mortality after transoral robotic surgery compares favorably with nonsurgical treatment and is lowest at high-volume centers. ORATOR2 also mandated prophylactic tracheostomy, a practice rarely used in contemporary transoral surgery for low-risk HPV-related OPSCC,” the authors wrote.

In defense of surgery

In an interview posted on the JAMA Network website, ORATOR2 co-investigator Anthony C. Nichols, MD, from the department of otolaryngology, head and neck surgery at Western University, London, Ontario, said that despite the findings of ORATOR2, transoral surgery is a good option for patients with low-risk disease and favorable anatomy.

“When you even look at the subset of these early T-stage patients that have anatomy that’s favorable towards transoral surgery, they do better. Their burden of disease is smaller, there’s less extensive neck disease ... so what happens very frequently, including even in the discussion of ECOG-ACRIN 3311, is comparisons to these large cooperative group studies that include T3, T4 tumors that no one on the planet would think about removing transorally,” he said.

“Everyone focuses on the surgical stopping, but what we should also focus on is how outstanding the patients did in the RT arm in both these studies,” he added.

Dr. Nichols also noted that quality-of-life metrics for patients randomized to surgery are comparable with those of patients randomized to radiation and that swallowing outcomes with surgery may be superior.

“In our minds, I think the issue is resolved, and we’re just moving on to the next concept, and the debate will rage on,” he said.
 

ORATOR2 study methodology

The primary endpoint of the trial was OS, compared with historical controls, with secondary endpoints of PFS, quality of life, and toxicity.

A total of 30 patients were randomized to receive RT, and 31 to receive TOS and neck dissection, with adjuvant reduced-dose RT depending on pathologic findings.

At a median follow-up of 17 months, there were 3 deaths in the surgery arm, including the 2 previously mentioned patients who died from treatment-related causes at 0.7 and 4.3 months after randomization, and 1 patient who died from myocardial infarction at 8.5 months. As noted before, OS and PFS data were not mature at the time of study termination.

Quality of life and functional outcomes were generally similar between the trial arms, except for worse scores among patients randomized to TOS and neck dissection in subdomains of coughing and weight loss on the European Organisation for Research and Treatment of Cancer H&N35 scale.

The trial was supported by an Ontario Institute for Cancer Research clinician-scientist operating grant and Wolfe Surgical Research Professorship in the Biology of Head and Neck Cancers Fund. Dr. Nichols reported grants from Novartis Canada outside the submitted work. Dr. Gross reported grants and personal fees from Regeneron, personal fees from Sanofi-Genzyme, Intuitive Surgical, and DragonFly Therapeutics, as well as advisory board service for PDS Biotechnology, Shattuck Labs, and Sanofi-Genzyme outside the submitted work.

The question of whether primary transoral surgery or radiation is a better treatment deescalation option for patients with low-risk human papillomavirus (HPV)-related oropharyngeal squamous cell carcinomas (OPSCCs) is still unanswered, despite the best efforts of investigators in the randomized phase 2 ORATOR2 trial.

Transoral surgery was associated with an unacceptable risk of grade 5 toxic effects, but patients in both trial arms achieved good swallowing outcomes at 1 year, the study found.

The trial, begun in early 2018, was halted in late 2020 because of safety concerns after 2 of 31 patients randomized to surgery died from treatment-related causes.

But the story doesn’t end there, investigators and observers say.

In both trial arms, patients had good swallowing outcomes and other favorable quality-of-life measures at 1 year, and it’s too early to tell whether the transoral surgery (TOS) was associated with an unacceptable risk of grade 5 toxic effects, but patients in both trial arms achieved good swallowing outcomes at 1 year, wrote investigators Daniel A. Palma, MD, from Western University in London, Ontario, and colleagues in JAMA Oncology.

Nonetheless, “the results of this randomized clinical trial suggest that a primary [surgery] approach was associated with an up-front risk of treatment-related mortality, and caution is warranted with this approach,” the investigators wrote.
 

Hard to interpret

“It’s challenging to do that study in Canada, frankly, and it’s hard to make much of it, with the trial being terminated early,” said Neil D. Gross, MD, a head and neck cancer surgeon-scientist with MD Anderson Cancer Center, Houston, in an interview.

Dr. Gross and Sewit Teckie, MD, system chief of radiation oncology at NYC Health and Hospitals, cowrote an editorial accompanying the ORATOR2 results that was published in JAMA Oncology.

“There’s a huge difference in the volume of transoral robotic surgery performed in the United States, compared with Canada – it’s night and day, and that’s due to the different kind of healthcare systems that we have,” Dr. Gross said.

As he and Dr. Teckie noted, the combined mortality rate for surgical patients in the multicenter ORATOR2 and the earlier ORATOR trial, which was not limited to patients with HPV-related cancers, was 3.6%.

In contrast, in the ECOG-ACRIN 3311 trial comparing standard radiation with reduced dose radiation following TOS in patients with intermediate-risk HPV-positive oropharynx cancer, there was only one death among 495 patients, for a mortality rate of 0.2%.

“In the United States, mortality after transoral robotic surgery compares favorably with nonsurgical treatment and is lowest at high-volume centers. ORATOR2 also mandated prophylactic tracheostomy, a practice rarely used in contemporary transoral surgery for low-risk HPV-related OPSCC,” the authors wrote.

In defense of surgery

In an interview posted on the JAMA Network website, ORATOR2 co-investigator Anthony C. Nichols, MD, from the department of otolaryngology, head and neck surgery at Western University, London, Ontario, said that despite the findings of ORATOR2, transoral surgery is a good option for patients with low-risk disease and favorable anatomy.

“When you even look at the subset of these early T-stage patients that have anatomy that’s favorable towards transoral surgery, they do better. Their burden of disease is smaller, there’s less extensive neck disease ... so what happens very frequently, including even in the discussion of ECOG-ACRIN 3311, is comparisons to these large cooperative group studies that include T3, T4 tumors that no one on the planet would think about removing transorally,” he said.

“Everyone focuses on the surgical stopping, but what we should also focus on is how outstanding the patients did in the RT arm in both these studies,” he added.

Dr. Nichols also noted that quality-of-life metrics for patients randomized to surgery are comparable with those of patients randomized to radiation and that swallowing outcomes with surgery may be superior.

“In our minds, I think the issue is resolved, and we’re just moving on to the next concept, and the debate will rage on,” he said.
 

ORATOR2 study methodology

The primary endpoint of the trial was OS, compared with historical controls, with secondary endpoints of PFS, quality of life, and toxicity.

A total of 30 patients were randomized to receive RT, and 31 to receive TOS and neck dissection, with adjuvant reduced-dose RT depending on pathologic findings.

At a median follow-up of 17 months, there were 3 deaths in the surgery arm, including the 2 previously mentioned patients who died from treatment-related causes at 0.7 and 4.3 months after randomization, and 1 patient who died from myocardial infarction at 8.5 months. As noted before, OS and PFS data were not mature at the time of study termination.

Quality of life and functional outcomes were generally similar between the trial arms, except for worse scores among patients randomized to TOS and neck dissection in subdomains of coughing and weight loss on the European Organisation for Research and Treatment of Cancer H&N35 scale.

The trial was supported by an Ontario Institute for Cancer Research clinician-scientist operating grant and Wolfe Surgical Research Professorship in the Biology of Head and Neck Cancers Fund. Dr. Nichols reported grants from Novartis Canada outside the submitted work. Dr. Gross reported grants and personal fees from Regeneron, personal fees from Sanofi-Genzyme, Intuitive Surgical, and DragonFly Therapeutics, as well as advisory board service for PDS Biotechnology, Shattuck Labs, and Sanofi-Genzyme outside the submitted work.

The question of whether primary transoral surgery or radiation is a better treatment deescalation option for patients with low-risk human papillomavirus (HPV)-related oropharyngeal squamous cell carcinomas (OPSCCs) is still unanswered, despite the best efforts of investigators in the randomized phase 2 ORATOR2 trial.

Transoral surgery was associated with an unacceptable risk of grade 5 toxic effects, but patients in both trial arms achieved good swallowing outcomes at 1 year, the study found.

The trial, begun in early 2018, was halted in late 2020 because of safety concerns after 2 of 31 patients randomized to surgery died from treatment-related causes.

But the story doesn’t end there, investigators and observers say.

In both trial arms, patients had good swallowing outcomes and other favorable quality-of-life measures at 1 year, and it’s too early to tell whether the transoral surgery (TOS) was associated with an unacceptable risk of grade 5 toxic effects, but patients in both trial arms achieved good swallowing outcomes at 1 year, wrote investigators Daniel A. Palma, MD, from Western University in London, Ontario, and colleagues in JAMA Oncology.

Nonetheless, “the results of this randomized clinical trial suggest that a primary [surgery] approach was associated with an up-front risk of treatment-related mortality, and caution is warranted with this approach,” the investigators wrote.
 

Hard to interpret

“It’s challenging to do that study in Canada, frankly, and it’s hard to make much of it, with the trial being terminated early,” said Neil D. Gross, MD, a head and neck cancer surgeon-scientist with MD Anderson Cancer Center, Houston, in an interview.

Dr. Gross and Sewit Teckie, MD, system chief of radiation oncology at NYC Health and Hospitals, cowrote an editorial accompanying the ORATOR2 results that was published in JAMA Oncology.

“There’s a huge difference in the volume of transoral robotic surgery performed in the United States, compared with Canada – it’s night and day, and that’s due to the different kind of healthcare systems that we have,” Dr. Gross said.

As he and Dr. Teckie noted, the combined mortality rate for surgical patients in the multicenter ORATOR2 and the earlier ORATOR trial, which was not limited to patients with HPV-related cancers, was 3.6%.

In contrast, in the ECOG-ACRIN 3311 trial comparing standard radiation with reduced dose radiation following TOS in patients with intermediate-risk HPV-positive oropharynx cancer, there was only one death among 495 patients, for a mortality rate of 0.2%.

“In the United States, mortality after transoral robotic surgery compares favorably with nonsurgical treatment and is lowest at high-volume centers. ORATOR2 also mandated prophylactic tracheostomy, a practice rarely used in contemporary transoral surgery for low-risk HPV-related OPSCC,” the authors wrote.

In defense of surgery

In an interview posted on the JAMA Network website, ORATOR2 co-investigator Anthony C. Nichols, MD, from the department of otolaryngology, head and neck surgery at Western University, London, Ontario, said that despite the findings of ORATOR2, transoral surgery is a good option for patients with low-risk disease and favorable anatomy.

“When you even look at the subset of these early T-stage patients that have anatomy that’s favorable towards transoral surgery, they do better. Their burden of disease is smaller, there’s less extensive neck disease ... so what happens very frequently, including even in the discussion of ECOG-ACRIN 3311, is comparisons to these large cooperative group studies that include T3, T4 tumors that no one on the planet would think about removing transorally,” he said.

“Everyone focuses on the surgical stopping, but what we should also focus on is how outstanding the patients did in the RT arm in both these studies,” he added.

Dr. Nichols also noted that quality-of-life metrics for patients randomized to surgery are comparable with those of patients randomized to radiation and that swallowing outcomes with surgery may be superior.

“In our minds, I think the issue is resolved, and we’re just moving on to the next concept, and the debate will rage on,” he said.
 

ORATOR2 study methodology

The primary endpoint of the trial was OS, compared with historical controls, with secondary endpoints of PFS, quality of life, and toxicity.

A total of 30 patients were randomized to receive RT, and 31 to receive TOS and neck dissection, with adjuvant reduced-dose RT depending on pathologic findings.

At a median follow-up of 17 months, there were 3 deaths in the surgery arm, including the 2 previously mentioned patients who died from treatment-related causes at 0.7 and 4.3 months after randomization, and 1 patient who died from myocardial infarction at 8.5 months. As noted before, OS and PFS data were not mature at the time of study termination.

Quality of life and functional outcomes were generally similar between the trial arms, except for worse scores among patients randomized to TOS and neck dissection in subdomains of coughing and weight loss on the European Organisation for Research and Treatment of Cancer H&N35 scale.

The trial was supported by an Ontario Institute for Cancer Research clinician-scientist operating grant and Wolfe Surgical Research Professorship in the Biology of Head and Neck Cancers Fund. Dr. Nichols reported grants from Novartis Canada outside the submitted work. Dr. Gross reported grants and personal fees from Regeneron, personal fees from Sanofi-Genzyme, Intuitive Surgical, and DragonFly Therapeutics, as well as advisory board service for PDS Biotechnology, Shattuck Labs, and Sanofi-Genzyme outside the submitted work.

Young women with a new diagnosis of node-negative triple-negative breast cancer (TNBC) who have high levels of stromal tumor-infiltrating lymphocytes (sTILs) have a very good long-term prognosis, and may be suitable candidates for reduced intensity pre- or postoperative chemotherapy, according to a team of European investigators.

Among 441 women in a Dutch cancer registry who were younger than 40 when they were diagnosed with node-negative TNBC and had not undergone systemic therapy, those who had 75% or more TILs in the intratumoral stromal area had a 15-year cumulative incidence of distant metastases or death of just 2.1%, and every 10% increase in sTILs was associated with a 19% decrease in the risk of death.

In contrast, the 15-year cumulative incidence of distant metastases was 38.4% for women with stromal TIL scores of less than 30%, according to researchers writing in the Journal of Clinical Oncology.

“These data could be used as a starting point for designing a randomized controlled chemotherapy de-escalation trial. The current study confirms the importance of sTILs as a valuable addition to the set of standard prognostic factors in patients with TNBC,” wrote the researchers, who were led by Sabine C. Linn, MD, of the Netherlands Cancer Institute, Amsterdam.
 

Markers for immune response

Stromal TILs, a mixture of mononuclear immune cells, have been shown in previous studies to be prognostic for outcomes in patients with early-stage TNBC treated either with or without neoadjuvant or adjuvant chemotherapy.

For example, investigators cited a study published in JCO in 2014, that showed among women with TNBC enrolled in the phase 3 ECOG 2197 clinical trial and the related ECOG 119 clinical trial, after a nearly 11-year follow-up, higher sTIL scores were associated with significantly better prognosis with every 10% increase translating into a 14% reduction in the risk of recurrence or death (P = .02).

“The prognostic importance of sTILs is, however, unexplored in patients diagnosed under age 40 years, let alone in the subgroup of systemic therapy–naive patients,” Dr. Linn and colleagues wrote.
 

Retrospective study

To see whether the prognostic value of sTILs was as strong among young, systemic therapy–naive women, the investigators conducted a retrospective study of women enrolled in the Netherlands Cancer Registry who were diagnosed with node-negative TNBC from 1989 to 2000. The patients selected had undergone only locoregional treatment, including axillary node dissection, but had not received any systemic therapy.

Pathologists reviewed samples, with TILs reported for the stromal compartment. The samples were grouped by sTIL score categories of high (75% or greater), intermediate (30% to less than 75%), or low (less than 30%). The investigators looked at overall survival (OS) and distant metastasis-free survival (DMFS) stratified by sTIL scores,

During a median follow-up of 15 years, 107 women died or developed distant metastases, and 78 experienced a second primary cancer.

The results were as noted, with patients in the highest category of sTILs having very low rates of either death or distant metastases during follow-up.

“We confirm the prognostic value of sTILs in young patients with early-stage N0 TNBC who are systemic therapy naive by taking advantage of a prospectively collected population-based cohort. Increasing sTILs are significantly associated with improved OS and DMFS. Patients with high sTILs (> 75%) had an excellent 10-year overall survival and a very low 10-year incidence of distant metastasis or death.

The study was supported by grants from The Netherlands Organization for Health Research and Development, A Sister’s Hope, De Vrienden van UMC Utrecht, Agilent Technologies, the Dutch Cancer Society, and Breast Cancer Research Foundation. Dr. Linn reported consulting with and receiving compensation from Daiichi Sankyo, as well as receiving research funding from Genentech/Roche, AstraZeneca, Bristol-Myers Squibb, Tesaro, Merck, Immunomedics, Eurocept Pharmaceuticals, Agendia, and Novartis.

Young women with a new diagnosis of node-negative triple-negative breast cancer (TNBC) who have high levels of stromal tumor-infiltrating lymphocytes (sTILs) have a very good long-term prognosis, and may be suitable candidates for reduced intensity pre- or postoperative chemotherapy, according to a team of European investigators.

Among 441 women in a Dutch cancer registry who were younger than 40 when they were diagnosed with node-negative TNBC and had not undergone systemic therapy, those who had 75% or more TILs in the intratumoral stromal area had a 15-year cumulative incidence of distant metastases or death of just 2.1%, and every 10% increase in sTILs was associated with a 19% decrease in the risk of death.

In contrast, the 15-year cumulative incidence of distant metastases was 38.4% for women with stromal TIL scores of less than 30%, according to researchers writing in the Journal of Clinical Oncology.

“These data could be used as a starting point for designing a randomized controlled chemotherapy de-escalation trial. The current study confirms the importance of sTILs as a valuable addition to the set of standard prognostic factors in patients with TNBC,” wrote the researchers, who were led by Sabine C. Linn, MD, of the Netherlands Cancer Institute, Amsterdam.
 

Markers for immune response

Stromal TILs, a mixture of mononuclear immune cells, have been shown in previous studies to be prognostic for outcomes in patients with early-stage TNBC treated either with or without neoadjuvant or adjuvant chemotherapy.

For example, investigators cited a study published in JCO in 2014, that showed among women with TNBC enrolled in the phase 3 ECOG 2197 clinical trial and the related ECOG 119 clinical trial, after a nearly 11-year follow-up, higher sTIL scores were associated with significantly better prognosis with every 10% increase translating into a 14% reduction in the risk of recurrence or death (P = .02).

“The prognostic importance of sTILs is, however, unexplored in patients diagnosed under age 40 years, let alone in the subgroup of systemic therapy–naive patients,” Dr. Linn and colleagues wrote.
 

Retrospective study

To see whether the prognostic value of sTILs was as strong among young, systemic therapy–naive women, the investigators conducted a retrospective study of women enrolled in the Netherlands Cancer Registry who were diagnosed with node-negative TNBC from 1989 to 2000. The patients selected had undergone only locoregional treatment, including axillary node dissection, but had not received any systemic therapy.

Pathologists reviewed samples, with TILs reported for the stromal compartment. The samples were grouped by sTIL score categories of high (75% or greater), intermediate (30% to less than 75%), or low (less than 30%). The investigators looked at overall survival (OS) and distant metastasis-free survival (DMFS) stratified by sTIL scores,

During a median follow-up of 15 years, 107 women died or developed distant metastases, and 78 experienced a second primary cancer.

The results were as noted, with patients in the highest category of sTILs having very low rates of either death or distant metastases during follow-up.

“We confirm the prognostic value of sTILs in young patients with early-stage N0 TNBC who are systemic therapy naive by taking advantage of a prospectively collected population-based cohort. Increasing sTILs are significantly associated with improved OS and DMFS. Patients with high sTILs (> 75%) had an excellent 10-year overall survival and a very low 10-year incidence of distant metastasis or death.

The study was supported by grants from The Netherlands Organization for Health Research and Development, A Sister’s Hope, De Vrienden van UMC Utrecht, Agilent Technologies, the Dutch Cancer Society, and Breast Cancer Research Foundation. Dr. Linn reported consulting with and receiving compensation from Daiichi Sankyo, as well as receiving research funding from Genentech/Roche, AstraZeneca, Bristol-Myers Squibb, Tesaro, Merck, Immunomedics, Eurocept Pharmaceuticals, Agendia, and Novartis.

Young women with a new diagnosis of node-negative triple-negative breast cancer (TNBC) who have high levels of stromal tumor-infiltrating lymphocytes (sTILs) have a very good long-term prognosis, and may be suitable candidates for reduced intensity pre- or postoperative chemotherapy, according to a team of European investigators.

Among 441 women in a Dutch cancer registry who were younger than 40 when they were diagnosed with node-negative TNBC and had not undergone systemic therapy, those who had 75% or more TILs in the intratumoral stromal area had a 15-year cumulative incidence of distant metastases or death of just 2.1%, and every 10% increase in sTILs was associated with a 19% decrease in the risk of death.

In contrast, the 15-year cumulative incidence of distant metastases was 38.4% for women with stromal TIL scores of less than 30%, according to researchers writing in the Journal of Clinical Oncology.

“These data could be used as a starting point for designing a randomized controlled chemotherapy de-escalation trial. The current study confirms the importance of sTILs as a valuable addition to the set of standard prognostic factors in patients with TNBC,” wrote the researchers, who were led by Sabine C. Linn, MD, of the Netherlands Cancer Institute, Amsterdam.
 

Markers for immune response

Stromal TILs, a mixture of mononuclear immune cells, have been shown in previous studies to be prognostic for outcomes in patients with early-stage TNBC treated either with or without neoadjuvant or adjuvant chemotherapy.

For example, investigators cited a study published in JCO in 2014, that showed among women with TNBC enrolled in the phase 3 ECOG 2197 clinical trial and the related ECOG 119 clinical trial, after a nearly 11-year follow-up, higher sTIL scores were associated with significantly better prognosis with every 10% increase translating into a 14% reduction in the risk of recurrence or death (P = .02).

“The prognostic importance of sTILs is, however, unexplored in patients diagnosed under age 40 years, let alone in the subgroup of systemic therapy–naive patients,” Dr. Linn and colleagues wrote.
 

Retrospective study

To see whether the prognostic value of sTILs was as strong among young, systemic therapy–naive women, the investigators conducted a retrospective study of women enrolled in the Netherlands Cancer Registry who were diagnosed with node-negative TNBC from 1989 to 2000. The patients selected had undergone only locoregional treatment, including axillary node dissection, but had not received any systemic therapy.

Pathologists reviewed samples, with TILs reported for the stromal compartment. The samples were grouped by sTIL score categories of high (75% or greater), intermediate (30% to less than 75%), or low (less than 30%). The investigators looked at overall survival (OS) and distant metastasis-free survival (DMFS) stratified by sTIL scores,

During a median follow-up of 15 years, 107 women died or developed distant metastases, and 78 experienced a second primary cancer.

The results were as noted, with patients in the highest category of sTILs having very low rates of either death or distant metastases during follow-up.

“We confirm the prognostic value of sTILs in young patients with early-stage N0 TNBC who are systemic therapy naive by taking advantage of a prospectively collected population-based cohort. Increasing sTILs are significantly associated with improved OS and DMFS. Patients with high sTILs (> 75%) had an excellent 10-year overall survival and a very low 10-year incidence of distant metastasis or death.

The study was supported by grants from The Netherlands Organization for Health Research and Development, A Sister’s Hope, De Vrienden van UMC Utrecht, Agilent Technologies, the Dutch Cancer Society, and Breast Cancer Research Foundation. Dr. Linn reported consulting with and receiving compensation from Daiichi Sankyo, as well as receiving research funding from Genentech/Roche, AstraZeneca, Bristol-Myers Squibb, Tesaro, Merck, Immunomedics, Eurocept Pharmaceuticals, Agendia, and Novartis.

In oncology, delayed care may result in a failed opportunity to achieve remission. Delays in diagnosis can result in patients having to undergo more extensive surgery, radiation exposure, or more intensive drug therapy than if their disease had been detected at an early stage.

Now, researchers at Harvard Medical School, Boston, report that patients with high-deductible health insurance plans are significantly more likely to have a delay in diagnosis of metastatic cancer, compared with patients with low-deductible plans.

Using national insurance claims data, the authors conducted an observational study to examine what happened when some workers with employer-based insurance were switched from low-deductible to high-deductible plans, compared with a control group of workers who remained on low-deductible plans.

After the switch, workers shunted into high-deductible plans had a longer time to first diagnosis of a metastatic cancer, indicating delayed detection of advanced disease, compared with controls. The difference translated into a delay in diagnosis of metastatic disease of nearly 5 months, reported Nico Trad, BA, a fourth-year medical student at Dana-Farber Cancer Institute, Boston.

“The takeaway here is that these plans were associated with delayed detection of metastatic cancer. We did not assess the mechanism, but it’s a reasonable assumption to make that increased cost-sharing is having some adverse impacts on people’s willingness to seek care. And although we didn’t study potential impacts, we might anticipate that a delayed diagnosis might also lead to delayed engagement with palliative care,” he said in an oral abstract presentation at the annual meeting of the American Society of Clinical Oncology.

“A delay in initiation of symptom-relieving therapies and a delayed presentation might also lead to greater dissemination of disease throughout the body, which also has the potential to limit therapeutic options,” he added.
 

‘Deductible relief day’

Mr. Trad said that in 2022 more than half of employees are covered by high-deductible health plans, compared with only about 10% in 2006.

This major shift in cost burden coincided with President Joseph Biden’s announcement in early 2022 of the “Cancer Moonshot,” program with the goal of reducing cancer mortality by 50% over the next 25 years.

“Part of that is cancer prevention and control, which involves timely detection of cancer so that we can treat it early and have better outcomes,” he said.

High-deductible health plans ostensibly provide motivation for patients to shop for lower-priced care and avoid unnecessary or low-quality care, but making patients shell out more upfront before their insurance kicks in, while it reduced health care utilization, can also reduce the quality of care, he said.

In 2022, “Deductible Relief Day,” the day in which the average patient has satisfied the deductible and insurance starts to pick up more of the tab, occurred in mid-May, compared with late February in 2006.
 

Insurance claims data

Mr. Trad and colleagues used health insurance claims data from a nationally representative cohort of privately insured patients in a national commercial and Medicare Advantage database. They excluded patients 65 and older who were eligible for Medicare because it does not have high-deductible options.

The study cohort included 345,401 adults from the ages of 18 to 64 whose employers mandated a switch from a low-deductible plan which was defined as $500 or less, to a high-deductible plan defined as $1,000 or more. Controls were 1,654,775 contemporaneous adults whose employers offered only low-deductible plans. Both groups had a 1-year baseline period when all members were enrolled in low deductible plans.

To minimize the possibility of confounding, the investigators matched the participants by age, gender, race/ethnicity, morbidity according to Adjusted Clinical Group score, poverty level, geographic region, employer size, baseline primary cancer, baseline medical and pharmacy costs, and follow-up duration.

During the baseline period, the hazard ratio for time to a first observed metastatic cancer diagnosis in the main cohort, compared with controls, was 0.96 with a nonsignificant P value, indicating no difference in the time to diagnosis between the groups.

During a maximum 13.5 years of follow-up, however, the participants who had been switched after a year to a high-deductible plan had a significantly longer time to first metastatic diagnosis (HR, 0.88; P = .01), indicating delayed diagnosis relative to controls. This difference translated to a delay of 4.6 months associated with the higher out-of-pocket costs plans.

According to a systematic review and meta-analysis published online in 2020, a 1-month delay in treatment for many types of cancer can translate into a 6% to 13% higher risk for death, a risk that continues to increase with further delays.

The investigators acknowledged that the study was limited by the use of retrospective claims-based data, which not contain information on how the patients fared after diagnosis.

“I would say in terms of policy relevance that this really points to the need for new and innovative insurance models that, No. 1, reduce the cost-sharing burden for patients so that they’re not deterred from seeking care, and No. 2, that align rather than contradict the goal of improving population-level survival from cancer,” Mr. Trad said.
 

Further evidence of a flawed system

The study adds to an already strong body of evidence showing that high-deductible plans can have a negative impact on health, said Sara R. Collins, vice president for health care coverage and access at the Commonwealth Fund, a New York–based private foundation dedicated to improving health care.

“This is really the latest evidence on top of years of research that shows that high-deductible health plans lead people to make decisions that are not in the best interest of their health,” said Ms. Collins, who is not affiliated with the study presented at ASCO.

“We have a health care cost problem in the United States that far exceeds that of other high-income countries. Insurers try to solve it by shifting the costs to consumers and using other measures to restrict people’s use of health care, and often needed health care like this. The result is less access to needed care, and long-term adverse health consequences and their associated costs to patients and the health system generally,” she said.

The real driver of health care costs is not utilization, but the prices that insurers and providers negotiate in their service contracts, she explained.

“Prices are the central problem, insurers have control over those prices in their negotiations with providers. So unless we can gain control of that driver, patients are going to continue to suffer unnecessarily from both the short- and long-term effects of insurers who use tools to reduce their access to care,” she said.

In oncology, delayed care may result in a failed opportunity to achieve remission. Delays in diagnosis can result in patients having to undergo more extensive surgery, radiation exposure, or more intensive drug therapy than if their disease had been detected at an early stage.

Now, researchers at Harvard Medical School, Boston, report that patients with high-deductible health insurance plans are significantly more likely to have a delay in diagnosis of metastatic cancer, compared with patients with low-deductible plans.

Using national insurance claims data, the authors conducted an observational study to examine what happened when some workers with employer-based insurance were switched from low-deductible to high-deductible plans, compared with a control group of workers who remained on low-deductible plans.

After the switch, workers shunted into high-deductible plans had a longer time to first diagnosis of a metastatic cancer, indicating delayed detection of advanced disease, compared with controls. The difference translated into a delay in diagnosis of metastatic disease of nearly 5 months, reported Nico Trad, BA, a fourth-year medical student at Dana-Farber Cancer Institute, Boston.

“The takeaway here is that these plans were associated with delayed detection of metastatic cancer. We did not assess the mechanism, but it’s a reasonable assumption to make that increased cost-sharing is having some adverse impacts on people’s willingness to seek care. And although we didn’t study potential impacts, we might anticipate that a delayed diagnosis might also lead to delayed engagement with palliative care,” he said in an oral abstract presentation at the annual meeting of the American Society of Clinical Oncology.

“A delay in initiation of symptom-relieving therapies and a delayed presentation might also lead to greater dissemination of disease throughout the body, which also has the potential to limit therapeutic options,” he added.
 

‘Deductible relief day’

Mr. Trad said that in 2022 more than half of employees are covered by high-deductible health plans, compared with only about 10% in 2006.

This major shift in cost burden coincided with President Joseph Biden’s announcement in early 2022 of the “Cancer Moonshot,” program with the goal of reducing cancer mortality by 50% over the next 25 years.

“Part of that is cancer prevention and control, which involves timely detection of cancer so that we can treat it early and have better outcomes,” he said.

High-deductible health plans ostensibly provide motivation for patients to shop for lower-priced care and avoid unnecessary or low-quality care, but making patients shell out more upfront before their insurance kicks in, while it reduced health care utilization, can also reduce the quality of care, he said.

In 2022, “Deductible Relief Day,” the day in which the average patient has satisfied the deductible and insurance starts to pick up more of the tab, occurred in mid-May, compared with late February in 2006.
 

Insurance claims data

Mr. Trad and colleagues used health insurance claims data from a nationally representative cohort of privately insured patients in a national commercial and Medicare Advantage database. They excluded patients 65 and older who were eligible for Medicare because it does not have high-deductible options.

The study cohort included 345,401 adults from the ages of 18 to 64 whose employers mandated a switch from a low-deductible plan which was defined as $500 or less, to a high-deductible plan defined as $1,000 or more. Controls were 1,654,775 contemporaneous adults whose employers offered only low-deductible plans. Both groups had a 1-year baseline period when all members were enrolled in low deductible plans.

To minimize the possibility of confounding, the investigators matched the participants by age, gender, race/ethnicity, morbidity according to Adjusted Clinical Group score, poverty level, geographic region, employer size, baseline primary cancer, baseline medical and pharmacy costs, and follow-up duration.

During the baseline period, the hazard ratio for time to a first observed metastatic cancer diagnosis in the main cohort, compared with controls, was 0.96 with a nonsignificant P value, indicating no difference in the time to diagnosis between the groups.

During a maximum 13.5 years of follow-up, however, the participants who had been switched after a year to a high-deductible plan had a significantly longer time to first metastatic diagnosis (HR, 0.88; P = .01), indicating delayed diagnosis relative to controls. This difference translated to a delay of 4.6 months associated with the higher out-of-pocket costs plans.

According to a systematic review and meta-analysis published online in 2020, a 1-month delay in treatment for many types of cancer can translate into a 6% to 13% higher risk for death, a risk that continues to increase with further delays.

The investigators acknowledged that the study was limited by the use of retrospective claims-based data, which not contain information on how the patients fared after diagnosis.

“I would say in terms of policy relevance that this really points to the need for new and innovative insurance models that, No. 1, reduce the cost-sharing burden for patients so that they’re not deterred from seeking care, and No. 2, that align rather than contradict the goal of improving population-level survival from cancer,” Mr. Trad said.
 

Further evidence of a flawed system

The study adds to an already strong body of evidence showing that high-deductible plans can have a negative impact on health, said Sara R. Collins, vice president for health care coverage and access at the Commonwealth Fund, a New York–based private foundation dedicated to improving health care.

“This is really the latest evidence on top of years of research that shows that high-deductible health plans lead people to make decisions that are not in the best interest of their health,” said Ms. Collins, who is not affiliated with the study presented at ASCO.

“We have a health care cost problem in the United States that far exceeds that of other high-income countries. Insurers try to solve it by shifting the costs to consumers and using other measures to restrict people’s use of health care, and often needed health care like this. The result is less access to needed care, and long-term adverse health consequences and their associated costs to patients and the health system generally,” she said.

The real driver of health care costs is not utilization, but the prices that insurers and providers negotiate in their service contracts, she explained.

“Prices are the central problem, insurers have control over those prices in their negotiations with providers. So unless we can gain control of that driver, patients are going to continue to suffer unnecessarily from both the short- and long-term effects of insurers who use tools to reduce their access to care,” she said.

In oncology, delayed care may result in a failed opportunity to achieve remission. Delays in diagnosis can result in patients having to undergo more extensive surgery, radiation exposure, or more intensive drug therapy than if their disease had been detected at an early stage.

Now, researchers at Harvard Medical School, Boston, report that patients with high-deductible health insurance plans are significantly more likely to have a delay in diagnosis of metastatic cancer, compared with patients with low-deductible plans.

Using national insurance claims data, the authors conducted an observational study to examine what happened when some workers with employer-based insurance were switched from low-deductible to high-deductible plans, compared with a control group of workers who remained on low-deductible plans.

After the switch, workers shunted into high-deductible plans had a longer time to first diagnosis of a metastatic cancer, indicating delayed detection of advanced disease, compared with controls. The difference translated into a delay in diagnosis of metastatic disease of nearly 5 months, reported Nico Trad, BA, a fourth-year medical student at Dana-Farber Cancer Institute, Boston.

“The takeaway here is that these plans were associated with delayed detection of metastatic cancer. We did not assess the mechanism, but it’s a reasonable assumption to make that increased cost-sharing is having some adverse impacts on people’s willingness to seek care. And although we didn’t study potential impacts, we might anticipate that a delayed diagnosis might also lead to delayed engagement with palliative care,” he said in an oral abstract presentation at the annual meeting of the American Society of Clinical Oncology.

“A delay in initiation of symptom-relieving therapies and a delayed presentation might also lead to greater dissemination of disease throughout the body, which also has the potential to limit therapeutic options,” he added.
 

‘Deductible relief day’

Mr. Trad said that in 2022 more than half of employees are covered by high-deductible health plans, compared with only about 10% in 2006.

This major shift in cost burden coincided with President Joseph Biden’s announcement in early 2022 of the “Cancer Moonshot,” program with the goal of reducing cancer mortality by 50% over the next 25 years.

“Part of that is cancer prevention and control, which involves timely detection of cancer so that we can treat it early and have better outcomes,” he said.

High-deductible health plans ostensibly provide motivation for patients to shop for lower-priced care and avoid unnecessary or low-quality care, but making patients shell out more upfront before their insurance kicks in, while it reduced health care utilization, can also reduce the quality of care, he said.

In 2022, “Deductible Relief Day,” the day in which the average patient has satisfied the deductible and insurance starts to pick up more of the tab, occurred in mid-May, compared with late February in 2006.
 

Insurance claims data

Mr. Trad and colleagues used health insurance claims data from a nationally representative cohort of privately insured patients in a national commercial and Medicare Advantage database. They excluded patients 65 and older who were eligible for Medicare because it does not have high-deductible options.

The study cohort included 345,401 adults from the ages of 18 to 64 whose employers mandated a switch from a low-deductible plan which was defined as $500 or less, to a high-deductible plan defined as $1,000 or more. Controls were 1,654,775 contemporaneous adults whose employers offered only low-deductible plans. Both groups had a 1-year baseline period when all members were enrolled in low deductible plans.

To minimize the possibility of confounding, the investigators matched the participants by age, gender, race/ethnicity, morbidity according to Adjusted Clinical Group score, poverty level, geographic region, employer size, baseline primary cancer, baseline medical and pharmacy costs, and follow-up duration.

During the baseline period, the hazard ratio for time to a first observed metastatic cancer diagnosis in the main cohort, compared with controls, was 0.96 with a nonsignificant P value, indicating no difference in the time to diagnosis between the groups.

During a maximum 13.5 years of follow-up, however, the participants who had been switched after a year to a high-deductible plan had a significantly longer time to first metastatic diagnosis (HR, 0.88; P = .01), indicating delayed diagnosis relative to controls. This difference translated to a delay of 4.6 months associated with the higher out-of-pocket costs plans.

According to a systematic review and meta-analysis published online in 2020, a 1-month delay in treatment for many types of cancer can translate into a 6% to 13% higher risk for death, a risk that continues to increase with further delays.

The investigators acknowledged that the study was limited by the use of retrospective claims-based data, which not contain information on how the patients fared after diagnosis.

“I would say in terms of policy relevance that this really points to the need for new and innovative insurance models that, No. 1, reduce the cost-sharing burden for patients so that they’re not deterred from seeking care, and No. 2, that align rather than contradict the goal of improving population-level survival from cancer,” Mr. Trad said.
 

Further evidence of a flawed system

The study adds to an already strong body of evidence showing that high-deductible plans can have a negative impact on health, said Sara R. Collins, vice president for health care coverage and access at the Commonwealth Fund, a New York–based private foundation dedicated to improving health care.

“This is really the latest evidence on top of years of research that shows that high-deductible health plans lead people to make decisions that are not in the best interest of their health,” said Ms. Collins, who is not affiliated with the study presented at ASCO.

“We have a health care cost problem in the United States that far exceeds that of other high-income countries. Insurers try to solve it by shifting the costs to consumers and using other measures to restrict people’s use of health care, and often needed health care like this. The result is less access to needed care, and long-term adverse health consequences and their associated costs to patients and the health system generally,” she said.

The real driver of health care costs is not utilization, but the prices that insurers and providers negotiate in their service contracts, she explained.

“Prices are the central problem, insurers have control over those prices in their negotiations with providers. So unless we can gain control of that driver, patients are going to continue to suffer unnecessarily from both the short- and long-term effects of insurers who use tools to reduce their access to care,” she said.

A team of surgeons successfully transplanted genetically engineered pig hearts into two recently deceased people whose bodies were being maintained on ventilatory support – not in the hope of restoring life, but as a proof-of-concept experiment in xenotransplantation that could eventually help to ease the critical shortage of donor organs.

The surgeries were performed on June 16 and July 6, 2022, using porcine hearts from animals genetically engineered to prevent organ rejection and promote adaptive immunity by human recipients

“From the very beginning our goal was to be able to create a model where we actually mimicked what is now done clinically in human transplantation, without utilizing unapproved devices or techniques or medications,” said Nader Moazami, MD, surgical director of heart transplantation and chief of the division of heart and lung transplantation and mechanical circulatory support at NYU Langone Health, New York.

Joe Carrotta for NYU Langone Health

Through 72 hours of postoperative monitoring “we evaluated the heart for functionality and the heart function was completely normal with excellent contractility,” he said at a press briefing announcing early results of the experimental program.

He acknowledged that for the first of the two procedures some surgical modification of the pig heart was required, primarily because of size differences between the donor and recipient.

“Nevertheless, we learned a tremendous amount from the first operation, and when that experience was translated into the second operation it even performed better,” he said.

Alex Reyentovich, MD, medical director of heart transplantation and director of the NYU Langone advanced heart failure program noted that “there are 6 million individuals with heart failure in the United States. About 100,000 of those individuals have end-stage heart failure, and we only do about 3,500 heart transplants a year in the United States, so we have a tremendous deficiency in organs, and there are many people dying waiting for a heart.”

Infection protocols

To date there has been only one xenotransplant of a genetically modified pig heart into a living human recipient, David Bennett Sr., age 57. The surgery, performed at the University of Maryland in January 2022, was initially successful, with the patient able to sit up in bed a few days after the procedure, and the heart performing like a “rock star” according to transplant surgeon Bartley Griffith, MD.

However, Mr. Bennett died 2 months after the procedure from compromise of the organ by an as yet undetermined cause, of which one may have been the heart's infection by porcine cytomegalovirus (CMV).

Joe Carrotta for NYU Langone Health

The NYU team, mindful of this potential setback, used more sensitive assays to screen the donor organs for porcine CMV, and implemented protocols to prevent and to monitor for potential zoonotic transmission of porcine endogenous retrovirus.

The procedure used a dedicated operating room and equipment that will not be used for clinical procedures, the team emphasized.

An organ transplant specialist who was not involved in the study commented that there can be unwelcome surprises even with the most rigorous infection prophylaxis protocols.

“I think these are important steps, but they don’t resolve the question of infectious risk. Sometimes viruses or latent infections are only manifested later,” said Jay A. Fishman, MD, associate director of the Massachusetts General Hospital Transplant Center and director of the transplant infectious diseases and compromised host program at the hospital, which is in Boston.

“I think these are important steps, but as you may recall from the Maryland heart transplant experience, when porcine cytomegalovirus was activated, it was a long way into that patient’s course, and so we just don’t know whether something would have been reactivated later,” he said in an interview.

Dr. Fishman noted that experience with xenotransplantation at the University of Maryland and other centers has suggested that immunosuppressive regimens used for human-to-human transplants may not be suited for animal-to-human grafts.

The hearts were taken from pigs genetically modified with knockouts of four porcine genes to prevent rejection – including a gene for a growth hormone that would otherwise cause the heart to continue to expand in the recipient’s chest – and with the addition of six human transgenes encoding for expression of proteins regulating biologic pathways that might be disrupted by incompatibilities across species.

Vietnam veteran

The organ recipients were recently deceased patients who had expressed the clear wish to be organ donors but whose organs were for clinical reasons unsuitable for transplant.

The first recipient was Lawrence Kelly, a Vietnam War veteran and welder who died from heart failure at the age of 72.

“He was an organ donor, and would be so happy to know how much his contribution to this research will help people like him with this heart disease. He was a hero his whole life, and he went out a hero,” said Alice Michael, Mr. Kelly’s partner of 33 years, who also spoke at the briefing.

“It was, I think, one of the most incredible things to see a pig heart pounding away and beating inside the chest of a human being,” said Robert A. Montgomery, MD, DPhil, director of the NYU Transplant Institute, and himself a heart transplant recipient.

Dr. Fishman said he had no relevant conflicts of interest.

This article was updated on 7/12/22 and 7/14/22.

A team of surgeons successfully transplanted genetically engineered pig hearts into two recently deceased people whose bodies were being maintained on ventilatory support – not in the hope of restoring life, but as a proof-of-concept experiment in xenotransplantation that could eventually help to ease the critical shortage of donor organs.

The surgeries were performed on June 16 and July 6, 2022, using porcine hearts from animals genetically engineered to prevent organ rejection and promote adaptive immunity by human recipients

“From the very beginning our goal was to be able to create a model where we actually mimicked what is now done clinically in human transplantation, without utilizing unapproved devices or techniques or medications,” said Nader Moazami, MD, surgical director of heart transplantation and chief of the division of heart and lung transplantation and mechanical circulatory support at NYU Langone Health, New York.

Joe Carrotta for NYU Langone Health

Through 72 hours of postoperative monitoring “we evaluated the heart for functionality and the heart function was completely normal with excellent contractility,” he said at a press briefing announcing early results of the experimental program.

He acknowledged that for the first of the two procedures some surgical modification of the pig heart was required, primarily because of size differences between the donor and recipient.

“Nevertheless, we learned a tremendous amount from the first operation, and when that experience was translated into the second operation it even performed better,” he said.

Alex Reyentovich, MD, medical director of heart transplantation and director of the NYU Langone advanced heart failure program noted that “there are 6 million individuals with heart failure in the United States. About 100,000 of those individuals have end-stage heart failure, and we only do about 3,500 heart transplants a year in the United States, so we have a tremendous deficiency in organs, and there are many people dying waiting for a heart.”

Infection protocols

To date there has been only one xenotransplant of a genetically modified pig heart into a living human recipient, David Bennett Sr., age 57. The surgery, performed at the University of Maryland in January 2022, was initially successful, with the patient able to sit up in bed a few days after the procedure, and the heart performing like a “rock star” according to transplant surgeon Bartley Griffith, MD.

However, Mr. Bennett died 2 months after the procedure from compromise of the organ by an as yet undetermined cause, of which one may have been the heart's infection by porcine cytomegalovirus (CMV).

Joe Carrotta for NYU Langone Health

The NYU team, mindful of this potential setback, used more sensitive assays to screen the donor organs for porcine CMV, and implemented protocols to prevent and to monitor for potential zoonotic transmission of porcine endogenous retrovirus.

The procedure used a dedicated operating room and equipment that will not be used for clinical procedures, the team emphasized.

An organ transplant specialist who was not involved in the study commented that there can be unwelcome surprises even with the most rigorous infection prophylaxis protocols.

“I think these are important steps, but they don’t resolve the question of infectious risk. Sometimes viruses or latent infections are only manifested later,” said Jay A. Fishman, MD, associate director of the Massachusetts General Hospital Transplant Center and director of the transplant infectious diseases and compromised host program at the hospital, which is in Boston.

“I think these are important steps, but as you may recall from the Maryland heart transplant experience, when porcine cytomegalovirus was activated, it was a long way into that patient’s course, and so we just don’t know whether something would have been reactivated later,” he said in an interview.

Dr. Fishman noted that experience with xenotransplantation at the University of Maryland and other centers has suggested that immunosuppressive regimens used for human-to-human transplants may not be suited for animal-to-human grafts.

The hearts were taken from pigs genetically modified with knockouts of four porcine genes to prevent rejection – including a gene for a growth hormone that would otherwise cause the heart to continue to expand in the recipient’s chest – and with the addition of six human transgenes encoding for expression of proteins regulating biologic pathways that might be disrupted by incompatibilities across species.

Vietnam veteran

The organ recipients were recently deceased patients who had expressed the clear wish to be organ donors but whose organs were for clinical reasons unsuitable for transplant.

The first recipient was Lawrence Kelly, a Vietnam War veteran and welder who died from heart failure at the age of 72.

“He was an organ donor, and would be so happy to know how much his contribution to this research will help people like him with this heart disease. He was a hero his whole life, and he went out a hero,” said Alice Michael, Mr. Kelly’s partner of 33 years, who also spoke at the briefing.

“It was, I think, one of the most incredible things to see a pig heart pounding away and beating inside the chest of a human being,” said Robert A. Montgomery, MD, DPhil, director of the NYU Transplant Institute, and himself a heart transplant recipient.

Dr. Fishman said he had no relevant conflicts of interest.

This article was updated on 7/12/22 and 7/14/22.

A team of surgeons successfully transplanted genetically engineered pig hearts into two recently deceased people whose bodies were being maintained on ventilatory support – not in the hope of restoring life, but as a proof-of-concept experiment in xenotransplantation that could eventually help to ease the critical shortage of donor organs.

The surgeries were performed on June 16 and July 6, 2022, using porcine hearts from animals genetically engineered to prevent organ rejection and promote adaptive immunity by human recipients

“From the very beginning our goal was to be able to create a model where we actually mimicked what is now done clinically in human transplantation, without utilizing unapproved devices or techniques or medications,” said Nader Moazami, MD, surgical director of heart transplantation and chief of the division of heart and lung transplantation and mechanical circulatory support at NYU Langone Health, New York.

Joe Carrotta for NYU Langone Health

Through 72 hours of postoperative monitoring “we evaluated the heart for functionality and the heart function was completely normal with excellent contractility,” he said at a press briefing announcing early results of the experimental program.

He acknowledged that for the first of the two procedures some surgical modification of the pig heart was required, primarily because of size differences between the donor and recipient.

“Nevertheless, we learned a tremendous amount from the first operation, and when that experience was translated into the second operation it even performed better,” he said.

Alex Reyentovich, MD, medical director of heart transplantation and director of the NYU Langone advanced heart failure program noted that “there are 6 million individuals with heart failure in the United States. About 100,000 of those individuals have end-stage heart failure, and we only do about 3,500 heart transplants a year in the United States, so we have a tremendous deficiency in organs, and there are many people dying waiting for a heart.”

Infection protocols

To date there has been only one xenotransplant of a genetically modified pig heart into a living human recipient, David Bennett Sr., age 57. The surgery, performed at the University of Maryland in January 2022, was initially successful, with the patient able to sit up in bed a few days after the procedure, and the heart performing like a “rock star” according to transplant surgeon Bartley Griffith, MD.

However, Mr. Bennett died 2 months after the procedure from compromise of the organ by an as yet undetermined cause, of which one may have been the heart's infection by porcine cytomegalovirus (CMV).

Joe Carrotta for NYU Langone Health

The NYU team, mindful of this potential setback, used more sensitive assays to screen the donor organs for porcine CMV, and implemented protocols to prevent and to monitor for potential zoonotic transmission of porcine endogenous retrovirus.

The procedure used a dedicated operating room and equipment that will not be used for clinical procedures, the team emphasized.

An organ transplant specialist who was not involved in the study commented that there can be unwelcome surprises even with the most rigorous infection prophylaxis protocols.

“I think these are important steps, but they don’t resolve the question of infectious risk. Sometimes viruses or latent infections are only manifested later,” said Jay A. Fishman, MD, associate director of the Massachusetts General Hospital Transplant Center and director of the transplant infectious diseases and compromised host program at the hospital, which is in Boston.

“I think these are important steps, but as you may recall from the Maryland heart transplant experience, when porcine cytomegalovirus was activated, it was a long way into that patient’s course, and so we just don’t know whether something would have been reactivated later,” he said in an interview.

Dr. Fishman noted that experience with xenotransplantation at the University of Maryland and other centers has suggested that immunosuppressive regimens used for human-to-human transplants may not be suited for animal-to-human grafts.

The hearts were taken from pigs genetically modified with knockouts of four porcine genes to prevent rejection – including a gene for a growth hormone that would otherwise cause the heart to continue to expand in the recipient’s chest – and with the addition of six human transgenes encoding for expression of proteins regulating biologic pathways that might be disrupted by incompatibilities across species.

Vietnam veteran

The organ recipients were recently deceased patients who had expressed the clear wish to be organ donors but whose organs were for clinical reasons unsuitable for transplant.

The first recipient was Lawrence Kelly, a Vietnam War veteran and welder who died from heart failure at the age of 72.

“He was an organ donor, and would be so happy to know how much his contribution to this research will help people like him with this heart disease. He was a hero his whole life, and he went out a hero,” said Alice Michael, Mr. Kelly’s partner of 33 years, who also spoke at the briefing.

“It was, I think, one of the most incredible things to see a pig heart pounding away and beating inside the chest of a human being,” said Robert A. Montgomery, MD, DPhil, director of the NYU Transplant Institute, and himself a heart transplant recipient.

Dr. Fishman said he had no relevant conflicts of interest.

This article was updated on 7/12/22 and 7/14/22.