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Dexamethasone eases end-of-life cancer-related fatigue
NEW ORLEANS – Dexamethasone was more effective than was placebo in relieving cancer-related fatigue in a double-blind randomized trial of patients with advanced cancer.
After 14 days of treatment, scores on the Functional Assessment of Chronic Illness Therapy (FACIT) fatigue subscale improved by nearly 6 points in the dexamethasone group (9.0 vs. 3.1; P = .008).
"[Treatment] duration is very important in our patient population because when they are referred to us, it’s very late. They typically have a survival of just 28 to 7 days," Dr. Sriram Yennu said at the annual meeting of the American Academy of Hospice and Palliative Medicine.
Although 20%-50% of palliative care patients receive some form of corticosteroid, no steroid study to date has used cancer-related fatigue (CRF) as a primary outcome or assessed CRF with a validated outcome measure, he said. Fatigue is ubiquitous, however, contributing up to one-third of symptom distress in patients with advanced cancer.
The study enrolled 132 outpatients with a life expectancy of at least 4 weeks with three or more cancer-related symptoms (fatigue, pain, nausea, loss of appetite, depression, anxiety, or sleep disturbance), and randomly assigned them to oral dexamethasone 4 mg twice daily or placebo for 14 days.
The most common diagnosis was head and neck/lung cancer in 45 patients, followed by gastrointestinal cancer in 39, breast cancer in 13, and genitourinary in 10. Median patient age was 60; 81 patients were white, and the average FACIT fatigue score was 19.6, where 52 denotes no fatigue and 0 is severe fatigue.
Among 84 evaluable patients, total scores on FACIT favored the dexamethasone group (18.16 vs. 7.87; P = .03), as did scores on its physical subscale (5.25 vs. 1.32; P = .002), said Dr. Yennu of the department of palliative care and rehabilitation medicine, University of Texas MD Anderson Cancer Center, Houston.
Scores on the physical domain of the Edmonton Symptom Assessment Scale (ESAS) were better in the dexamethasone group than in the placebo group (–10.15 vs. –5.39; P = .04), according to the study, which earned Dr. Yennu a young investigator award.
Notably, scores were similar between the dexamethasone and placebo groups on the emotional subscale of FACIT (1.85 vs. 1.18; P = .49) and the ESAS psychological subscale (–1.48 vs. –2.08; P = .76). The emotional domain of the FACIT-F is measured by six items using a 0-4 scale where 0 is "not at all" and 4 includes statements like "I am losing hope in the fight against my illness." The finding suggests that the improvement in fatigue was likely not just a euphoric effect, as observed before in other steroid trials, Dr. Yennu said.
He expressed concern that corticosteroid use would increase toxicity, particularly insomnia, but no significant differences were observed between the dexamethasone and placebo groups regarding insomnia (3 vs. 4), overall adverse events (41 vs. 44) or serious adverse events (17 vs. 11).
Larger, long-term safety and efficacy studies are needed to address steroid dose and duration, and whether dexamethasone should be coupled with interventions targeting the psychological domain, he said. A 3-point difference in the FACIT is considered clinically important, but research in press in the Journal of Clinical Oncology, by Dr. Yennu and his colleagues, suggests a 10-point difference is more meaningful.
The American Cancer Society supported the study. Dr. Yennu reported having no financial disclosures.
NEW ORLEANS – Dexamethasone was more effective than was placebo in relieving cancer-related fatigue in a double-blind randomized trial of patients with advanced cancer.
After 14 days of treatment, scores on the Functional Assessment of Chronic Illness Therapy (FACIT) fatigue subscale improved by nearly 6 points in the dexamethasone group (9.0 vs. 3.1; P = .008).
"[Treatment] duration is very important in our patient population because when they are referred to us, it’s very late. They typically have a survival of just 28 to 7 days," Dr. Sriram Yennu said at the annual meeting of the American Academy of Hospice and Palliative Medicine.
Although 20%-50% of palliative care patients receive some form of corticosteroid, no steroid study to date has used cancer-related fatigue (CRF) as a primary outcome or assessed CRF with a validated outcome measure, he said. Fatigue is ubiquitous, however, contributing up to one-third of symptom distress in patients with advanced cancer.
The study enrolled 132 outpatients with a life expectancy of at least 4 weeks with three or more cancer-related symptoms (fatigue, pain, nausea, loss of appetite, depression, anxiety, or sleep disturbance), and randomly assigned them to oral dexamethasone 4 mg twice daily or placebo for 14 days.
The most common diagnosis was head and neck/lung cancer in 45 patients, followed by gastrointestinal cancer in 39, breast cancer in 13, and genitourinary in 10. Median patient age was 60; 81 patients were white, and the average FACIT fatigue score was 19.6, where 52 denotes no fatigue and 0 is severe fatigue.
Among 84 evaluable patients, total scores on FACIT favored the dexamethasone group (18.16 vs. 7.87; P = .03), as did scores on its physical subscale (5.25 vs. 1.32; P = .002), said Dr. Yennu of the department of palliative care and rehabilitation medicine, University of Texas MD Anderson Cancer Center, Houston.
Scores on the physical domain of the Edmonton Symptom Assessment Scale (ESAS) were better in the dexamethasone group than in the placebo group (–10.15 vs. –5.39; P = .04), according to the study, which earned Dr. Yennu a young investigator award.
Notably, scores were similar between the dexamethasone and placebo groups on the emotional subscale of FACIT (1.85 vs. 1.18; P = .49) and the ESAS psychological subscale (–1.48 vs. –2.08; P = .76). The emotional domain of the FACIT-F is measured by six items using a 0-4 scale where 0 is "not at all" and 4 includes statements like "I am losing hope in the fight against my illness." The finding suggests that the improvement in fatigue was likely not just a euphoric effect, as observed before in other steroid trials, Dr. Yennu said.
He expressed concern that corticosteroid use would increase toxicity, particularly insomnia, but no significant differences were observed between the dexamethasone and placebo groups regarding insomnia (3 vs. 4), overall adverse events (41 vs. 44) or serious adverse events (17 vs. 11).
Larger, long-term safety and efficacy studies are needed to address steroid dose and duration, and whether dexamethasone should be coupled with interventions targeting the psychological domain, he said. A 3-point difference in the FACIT is considered clinically important, but research in press in the Journal of Clinical Oncology, by Dr. Yennu and his colleagues, suggests a 10-point difference is more meaningful.
The American Cancer Society supported the study. Dr. Yennu reported having no financial disclosures.
NEW ORLEANS – Dexamethasone was more effective than was placebo in relieving cancer-related fatigue in a double-blind randomized trial of patients with advanced cancer.
After 14 days of treatment, scores on the Functional Assessment of Chronic Illness Therapy (FACIT) fatigue subscale improved by nearly 6 points in the dexamethasone group (9.0 vs. 3.1; P = .008).
"[Treatment] duration is very important in our patient population because when they are referred to us, it’s very late. They typically have a survival of just 28 to 7 days," Dr. Sriram Yennu said at the annual meeting of the American Academy of Hospice and Palliative Medicine.
Although 20%-50% of palliative care patients receive some form of corticosteroid, no steroid study to date has used cancer-related fatigue (CRF) as a primary outcome or assessed CRF with a validated outcome measure, he said. Fatigue is ubiquitous, however, contributing up to one-third of symptom distress in patients with advanced cancer.
The study enrolled 132 outpatients with a life expectancy of at least 4 weeks with three or more cancer-related symptoms (fatigue, pain, nausea, loss of appetite, depression, anxiety, or sleep disturbance), and randomly assigned them to oral dexamethasone 4 mg twice daily or placebo for 14 days.
The most common diagnosis was head and neck/lung cancer in 45 patients, followed by gastrointestinal cancer in 39, breast cancer in 13, and genitourinary in 10. Median patient age was 60; 81 patients were white, and the average FACIT fatigue score was 19.6, where 52 denotes no fatigue and 0 is severe fatigue.
Among 84 evaluable patients, total scores on FACIT favored the dexamethasone group (18.16 vs. 7.87; P = .03), as did scores on its physical subscale (5.25 vs. 1.32; P = .002), said Dr. Yennu of the department of palliative care and rehabilitation medicine, University of Texas MD Anderson Cancer Center, Houston.
Scores on the physical domain of the Edmonton Symptom Assessment Scale (ESAS) were better in the dexamethasone group than in the placebo group (–10.15 vs. –5.39; P = .04), according to the study, which earned Dr. Yennu a young investigator award.
Notably, scores were similar between the dexamethasone and placebo groups on the emotional subscale of FACIT (1.85 vs. 1.18; P = .49) and the ESAS psychological subscale (–1.48 vs. –2.08; P = .76). The emotional domain of the FACIT-F is measured by six items using a 0-4 scale where 0 is "not at all" and 4 includes statements like "I am losing hope in the fight against my illness." The finding suggests that the improvement in fatigue was likely not just a euphoric effect, as observed before in other steroid trials, Dr. Yennu said.
He expressed concern that corticosteroid use would increase toxicity, particularly insomnia, but no significant differences were observed between the dexamethasone and placebo groups regarding insomnia (3 vs. 4), overall adverse events (41 vs. 44) or serious adverse events (17 vs. 11).
Larger, long-term safety and efficacy studies are needed to address steroid dose and duration, and whether dexamethasone should be coupled with interventions targeting the psychological domain, he said. A 3-point difference in the FACIT is considered clinically important, but research in press in the Journal of Clinical Oncology, by Dr. Yennu and his colleagues, suggests a 10-point difference is more meaningful.
The American Cancer Society supported the study. Dr. Yennu reported having no financial disclosures.
AT THE AAHPM ANNUAL ASSEMBLY
Major finding: Scores on the FACIT fatigue subscale improved by an average of 6 points in patients treated with dexamethasone, compared with 3 points in patients treated with placebo.
Data source: Double-blind, randomized trial of 132 patients with advanced cancer.
Disclosures: The American Cancer Society supported the study. Dr. Yennu reported having no financial disclosures.
HPV epidemic continues to fuel incidence of head and neck cancer
Community Oncology Editor Dr. Debra Patt spoke with Dr. Ezra Cohen at the Oncology Practice Summit in Las Vegas about the HPV epidemic and its effect on the pathophysiology and treatment of head and neck cancers.
The Oncology Practice Summit was the 8th annual meeting of Community Oncology, the journal of clinical issues in community practice. Dr. Patt was a co-chair of the Summit, which was hosted this year by Community Oncology as well as The Journal of Supportive Oncology and The Oncology Report.
Community Oncology Editor Dr. Debra Patt spoke with Dr. Ezra Cohen at the Oncology Practice Summit in Las Vegas about the HPV epidemic and its effect on the pathophysiology and treatment of head and neck cancers.
The Oncology Practice Summit was the 8th annual meeting of Community Oncology, the journal of clinical issues in community practice. Dr. Patt was a co-chair of the Summit, which was hosted this year by Community Oncology as well as The Journal of Supportive Oncology and The Oncology Report.
Community Oncology Editor Dr. Debra Patt spoke with Dr. Ezra Cohen at the Oncology Practice Summit in Las Vegas about the HPV epidemic and its effect on the pathophysiology and treatment of head and neck cancers.
The Oncology Practice Summit was the 8th annual meeting of Community Oncology, the journal of clinical issues in community practice. Dr. Patt was a co-chair of the Summit, which was hosted this year by Community Oncology as well as The Journal of Supportive Oncology and The Oncology Report.
Escitalopram during cancer treatment reduces depression risk
LOS ANGELES – Prophylactic escitalopram reduces the risk for depression in patients undergoing treatment for head and neck cancer, according to findings from a randomized placebo-controlled trial involving 148 patients.
Of those randomized to receive the selective serotonin reuptake inhibitor, 10% developed moderate to severe depression during the course of their cancer treatment, compared with 24.6% of those who received placebo, Dr. William J. Burke reported in a poster at the annual meeting of the American Association for Geriatric Psychiatry.
After adjustment for age, baseline smoking status, and stratification variables, including gender, cancer site, cancer stage, and primary treatment modality, those receiving active treatment remained significantly less likely to develop depression (hazard ratio, 0.37), said Dr. Burke of the University of Nebraska Medical Center, Omaha.
Of note, patients undergoing radiotherapy as the primary treatment modality were significantly more likely than those undergoing surgery as the primary treatment modality to develop depression (hazard ratio, 3.6).
Patients in the escitalopram group who did not become depressed during the course of the study reported a significantly better quality of life for 3 consecutive months after escitalopram cessation than those in either the treatment or placebo group who did develop depression, Dr. Burke noted.
Patients included in this double-blind study had head and neck cancers and were about to enter cancer treatment. Depression was assessed using the QIDS-SR(Quick Inventory of Depressive Symptomatology-Self Rated).
The findings have important implications for the management of patients entering treatment for head and neck cancer, which can be a particularly devastating disease. For example, larynx and tongue cancers comprise only 2% of all cancers, but patients with these cancers commit 19% of all cancer-related suicides, Dr. Burke noted.
Up to half of all patients with head and neck cancer develop major depressive disorder, which can adversely affect adherence to treatment, reduce quality of life, and result in significant morbidity and reduced survival.
"Preventing depression during the course of cancer treatment may, thus, be of great benefit," he said.
The project was supported by a grant from the National Institute of Mental Health. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIMH or the National Institutes of Health. Additional support was provided by a research support fund grant from the Nebraska Medical Center and the University of Nebraska Medical Center. Forest Pharmaceuticals provided the matching placebo and drugs.
LOS ANGELES – Prophylactic escitalopram reduces the risk for depression in patients undergoing treatment for head and neck cancer, according to findings from a randomized placebo-controlled trial involving 148 patients.
Of those randomized to receive the selective serotonin reuptake inhibitor, 10% developed moderate to severe depression during the course of their cancer treatment, compared with 24.6% of those who received placebo, Dr. William J. Burke reported in a poster at the annual meeting of the American Association for Geriatric Psychiatry.
After adjustment for age, baseline smoking status, and stratification variables, including gender, cancer site, cancer stage, and primary treatment modality, those receiving active treatment remained significantly less likely to develop depression (hazard ratio, 0.37), said Dr. Burke of the University of Nebraska Medical Center, Omaha.
Of note, patients undergoing radiotherapy as the primary treatment modality were significantly more likely than those undergoing surgery as the primary treatment modality to develop depression (hazard ratio, 3.6).
Patients in the escitalopram group who did not become depressed during the course of the study reported a significantly better quality of life for 3 consecutive months after escitalopram cessation than those in either the treatment or placebo group who did develop depression, Dr. Burke noted.
Patients included in this double-blind study had head and neck cancers and were about to enter cancer treatment. Depression was assessed using the QIDS-SR(Quick Inventory of Depressive Symptomatology-Self Rated).
The findings have important implications for the management of patients entering treatment for head and neck cancer, which can be a particularly devastating disease. For example, larynx and tongue cancers comprise only 2% of all cancers, but patients with these cancers commit 19% of all cancer-related suicides, Dr. Burke noted.
Up to half of all patients with head and neck cancer develop major depressive disorder, which can adversely affect adherence to treatment, reduce quality of life, and result in significant morbidity and reduced survival.
"Preventing depression during the course of cancer treatment may, thus, be of great benefit," he said.
The project was supported by a grant from the National Institute of Mental Health. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIMH or the National Institutes of Health. Additional support was provided by a research support fund grant from the Nebraska Medical Center and the University of Nebraska Medical Center. Forest Pharmaceuticals provided the matching placebo and drugs.
LOS ANGELES – Prophylactic escitalopram reduces the risk for depression in patients undergoing treatment for head and neck cancer, according to findings from a randomized placebo-controlled trial involving 148 patients.
Of those randomized to receive the selective serotonin reuptake inhibitor, 10% developed moderate to severe depression during the course of their cancer treatment, compared with 24.6% of those who received placebo, Dr. William J. Burke reported in a poster at the annual meeting of the American Association for Geriatric Psychiatry.
After adjustment for age, baseline smoking status, and stratification variables, including gender, cancer site, cancer stage, and primary treatment modality, those receiving active treatment remained significantly less likely to develop depression (hazard ratio, 0.37), said Dr. Burke of the University of Nebraska Medical Center, Omaha.
Of note, patients undergoing radiotherapy as the primary treatment modality were significantly more likely than those undergoing surgery as the primary treatment modality to develop depression (hazard ratio, 3.6).
Patients in the escitalopram group who did not become depressed during the course of the study reported a significantly better quality of life for 3 consecutive months after escitalopram cessation than those in either the treatment or placebo group who did develop depression, Dr. Burke noted.
Patients included in this double-blind study had head and neck cancers and were about to enter cancer treatment. Depression was assessed using the QIDS-SR(Quick Inventory of Depressive Symptomatology-Self Rated).
The findings have important implications for the management of patients entering treatment for head and neck cancer, which can be a particularly devastating disease. For example, larynx and tongue cancers comprise only 2% of all cancers, but patients with these cancers commit 19% of all cancer-related suicides, Dr. Burke noted.
Up to half of all patients with head and neck cancer develop major depressive disorder, which can adversely affect adherence to treatment, reduce quality of life, and result in significant morbidity and reduced survival.
"Preventing depression during the course of cancer treatment may, thus, be of great benefit," he said.
The project was supported by a grant from the National Institute of Mental Health. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIMH or the National Institutes of Health. Additional support was provided by a research support fund grant from the Nebraska Medical Center and the University of Nebraska Medical Center. Forest Pharmaceuticals provided the matching placebo and drugs.
AT THE AAGP ANNUAL MEETING
Major finding: During cancer treatment 10% of the treatment group developed depression, versus 24.6% of the placebo group.
Data source: A randomized, double-blind, placebo-controlled trial involving 148 patients.
Disclosures: The project was supported by a grant from the National Institute of Mental Health. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIMH or the National Institutes of Health. Additional support was provided by a research support fund grant from the Nebraska Medical Center and the University of Nebraska Medical Center. Forest Pharmaceuticals provided the matching placebo and drugs.
Adding cetuximab to chemoradiotherapy harmful in esophageal cancer
SAN FRANCISCO – A phase II/III clinical trial of adding cetuximab to chemoradiotherapy for localized esophageal cancer was stopped early when interim results showed greater toxicity, less completion of chemoradiotherapy, and worse survival with cetuximab.
Patients had been randomized to potentially curative treatment with cisplatin, capecitabine, and radiation, with or without cetuximab (Erbitux). Six months of follow-up on 258 patients found significantly lower median overall survival in the cetuximab arm compared with the control group (22.1 months vs. 25.4 months) and fewer patients free of treatment failure (66% vs. 77%), Dr. Thomas Crosby reported at a meeting on gastrointestinal cancers sponsored by the American Society of Clinical Oncology (ASCO).
The number of patients lost to follow-up before 26 weeks was similar between groups: 10 in the cetuximab group and 8 in the control group, he added.
Significantly fewer patients in the cetuximab arm were able to receive the full protocol dose of radiotherapy compared with the control arm (75% vs. 86%) and to complete all four cycles of cisplatin and capecitabine at full doses (77% vs. 90%) or reduced doses (69% vs. 85%), reported Dr. Crosby of Velindre Hospital, Cardiff, Wales.
The cetuximab group also showed significantly higher rates of grade 3 or 4 nonhematologic toxicities (78%) compared with the control arm (63%), primarily because of increases in cardiac toxicities (6% vs. 2%), dermatologic toxicities (22% vs. 4%), and metabolic toxicities (24% vs. 11%).
"The addition of cetuximab cannot be recommended to standard definitive chemoradiotherapy in the treatment of unselected patients with esophageal cancer," Dr. Crosby said.
All patients were to receive four cycles of cisplatin 60 mg/m2 on day 1 and capecitabine 625 mg/m2 daily on days 1-21, with cycles three and four given concurrently with radiotherapy (60 Gy in 25 fractions). The cetuximab group also received 400 mg/m2 of the drug on day 1 of cycle three, followed by cetuximab 250 mg/m2 weekly.
Patients in the multicenter study, known as the SCOPE 1 trial, had a median age of 67 years in both groups.
Survival outcomes associated with chemoradiotherapy for localized, poor-prognosis esophageal cancer in SCOPE 1 were better than results previously reported in trials of radiotherapy or surgery for these cancers, he noted. Future research should look at improving definitive chemoradiotherapy by identifying biomarkers to help select patients for treatment and incorporating newer radiology techniques to intensify treatment, he suggested.
Definitive chemoradiotherapy is used in the United Kingdom predominantly for patients with esophageal cancer who are not candidates for surgery and is considered a standard of care for patients with localized squamous cell carcinoma of the esophagus, Dr. Crosby said.
Other previous studies have reported that cetuximab improved outcomes when added to chemotherapy for advanced colorectal or head and neck cancers, and when added to radiotherapy for localized squamous cell carcinomas of the head and neck, he said. A separate study recently reported worse outcomes when cetuximab was added to first-line chemotherapy for gastric cancer.
Dr. Crosby reported having no relevant financial disclosures. Cetuximab is a product of ImClone, a subsidiary of Eli Lilly and Bristol-Myers Squibb, that is licensed to Merck KGaA for marketing outside the United States. Some of his associates reported receiving research funding from Merck, AstraZeneca, or Roche.
SAN FRANCISCO – A phase II/III clinical trial of adding cetuximab to chemoradiotherapy for localized esophageal cancer was stopped early when interim results showed greater toxicity, less completion of chemoradiotherapy, and worse survival with cetuximab.
Patients had been randomized to potentially curative treatment with cisplatin, capecitabine, and radiation, with or without cetuximab (Erbitux). Six months of follow-up on 258 patients found significantly lower median overall survival in the cetuximab arm compared with the control group (22.1 months vs. 25.4 months) and fewer patients free of treatment failure (66% vs. 77%), Dr. Thomas Crosby reported at a meeting on gastrointestinal cancers sponsored by the American Society of Clinical Oncology (ASCO).
The number of patients lost to follow-up before 26 weeks was similar between groups: 10 in the cetuximab group and 8 in the control group, he added.
Significantly fewer patients in the cetuximab arm were able to receive the full protocol dose of radiotherapy compared with the control arm (75% vs. 86%) and to complete all four cycles of cisplatin and capecitabine at full doses (77% vs. 90%) or reduced doses (69% vs. 85%), reported Dr. Crosby of Velindre Hospital, Cardiff, Wales.
The cetuximab group also showed significantly higher rates of grade 3 or 4 nonhematologic toxicities (78%) compared with the control arm (63%), primarily because of increases in cardiac toxicities (6% vs. 2%), dermatologic toxicities (22% vs. 4%), and metabolic toxicities (24% vs. 11%).
"The addition of cetuximab cannot be recommended to standard definitive chemoradiotherapy in the treatment of unselected patients with esophageal cancer," Dr. Crosby said.
All patients were to receive four cycles of cisplatin 60 mg/m2 on day 1 and capecitabine 625 mg/m2 daily on days 1-21, with cycles three and four given concurrently with radiotherapy (60 Gy in 25 fractions). The cetuximab group also received 400 mg/m2 of the drug on day 1 of cycle three, followed by cetuximab 250 mg/m2 weekly.
Patients in the multicenter study, known as the SCOPE 1 trial, had a median age of 67 years in both groups.
Survival outcomes associated with chemoradiotherapy for localized, poor-prognosis esophageal cancer in SCOPE 1 were better than results previously reported in trials of radiotherapy or surgery for these cancers, he noted. Future research should look at improving definitive chemoradiotherapy by identifying biomarkers to help select patients for treatment and incorporating newer radiology techniques to intensify treatment, he suggested.
Definitive chemoradiotherapy is used in the United Kingdom predominantly for patients with esophageal cancer who are not candidates for surgery and is considered a standard of care for patients with localized squamous cell carcinoma of the esophagus, Dr. Crosby said.
Other previous studies have reported that cetuximab improved outcomes when added to chemotherapy for advanced colorectal or head and neck cancers, and when added to radiotherapy for localized squamous cell carcinomas of the head and neck, he said. A separate study recently reported worse outcomes when cetuximab was added to first-line chemotherapy for gastric cancer.
Dr. Crosby reported having no relevant financial disclosures. Cetuximab is a product of ImClone, a subsidiary of Eli Lilly and Bristol-Myers Squibb, that is licensed to Merck KGaA for marketing outside the United States. Some of his associates reported receiving research funding from Merck, AstraZeneca, or Roche.
SAN FRANCISCO – A phase II/III clinical trial of adding cetuximab to chemoradiotherapy for localized esophageal cancer was stopped early when interim results showed greater toxicity, less completion of chemoradiotherapy, and worse survival with cetuximab.
Patients had been randomized to potentially curative treatment with cisplatin, capecitabine, and radiation, with or without cetuximab (Erbitux). Six months of follow-up on 258 patients found significantly lower median overall survival in the cetuximab arm compared with the control group (22.1 months vs. 25.4 months) and fewer patients free of treatment failure (66% vs. 77%), Dr. Thomas Crosby reported at a meeting on gastrointestinal cancers sponsored by the American Society of Clinical Oncology (ASCO).
The number of patients lost to follow-up before 26 weeks was similar between groups: 10 in the cetuximab group and 8 in the control group, he added.
Significantly fewer patients in the cetuximab arm were able to receive the full protocol dose of radiotherapy compared with the control arm (75% vs. 86%) and to complete all four cycles of cisplatin and capecitabine at full doses (77% vs. 90%) or reduced doses (69% vs. 85%), reported Dr. Crosby of Velindre Hospital, Cardiff, Wales.
The cetuximab group also showed significantly higher rates of grade 3 or 4 nonhematologic toxicities (78%) compared with the control arm (63%), primarily because of increases in cardiac toxicities (6% vs. 2%), dermatologic toxicities (22% vs. 4%), and metabolic toxicities (24% vs. 11%).
"The addition of cetuximab cannot be recommended to standard definitive chemoradiotherapy in the treatment of unselected patients with esophageal cancer," Dr. Crosby said.
All patients were to receive four cycles of cisplatin 60 mg/m2 on day 1 and capecitabine 625 mg/m2 daily on days 1-21, with cycles three and four given concurrently with radiotherapy (60 Gy in 25 fractions). The cetuximab group also received 400 mg/m2 of the drug on day 1 of cycle three, followed by cetuximab 250 mg/m2 weekly.
Patients in the multicenter study, known as the SCOPE 1 trial, had a median age of 67 years in both groups.
Survival outcomes associated with chemoradiotherapy for localized, poor-prognosis esophageal cancer in SCOPE 1 were better than results previously reported in trials of radiotherapy or surgery for these cancers, he noted. Future research should look at improving definitive chemoradiotherapy by identifying biomarkers to help select patients for treatment and incorporating newer radiology techniques to intensify treatment, he suggested.
Definitive chemoradiotherapy is used in the United Kingdom predominantly for patients with esophageal cancer who are not candidates for surgery and is considered a standard of care for patients with localized squamous cell carcinoma of the esophagus, Dr. Crosby said.
Other previous studies have reported that cetuximab improved outcomes when added to chemotherapy for advanced colorectal or head and neck cancers, and when added to radiotherapy for localized squamous cell carcinomas of the head and neck, he said. A separate study recently reported worse outcomes when cetuximab was added to first-line chemotherapy for gastric cancer.
Dr. Crosby reported having no relevant financial disclosures. Cetuximab is a product of ImClone, a subsidiary of Eli Lilly and Bristol-Myers Squibb, that is licensed to Merck KGaA for marketing outside the United States. Some of his associates reported receiving research funding from Merck, AstraZeneca, or Roche.
AT A MEETING ON GASTROINTESTINAL CANCERS SPONSORED BY ASCO
Major Finding: Adding cetuximab to chemoradiotherapy for localized esophageal cancer was associated with significantly shorter median survival compared with no cetuximab – 22.1 vs. 25.4 months.
Data Source: Six months of follow-up on 258 patients in a randomized, controlled multicenter trial.
Disclosures: Dr. Crosby reported having no relevant financial disclosures. Cetuximab is a product of ImClone, a subsidiary of Eli Lilly and Bristol-Myers Squibb, that is licensed to Merck KGaA for marketing outside the United States. Some of his associates reported receiving research funding from Merck, AstraZeneca, or Roche.
FDA Approves Second Drug for Rare Thyroid Cancer
Cabozantinib, a kinase inhibitor, has been approved for the treatment of progressive, metastatic medullary thyroid cancer, on the basis of the results of an international study of 330 patients, the Food and Drug Administration has announced.
This is the second drug approved by the FDA for this indication in the past 2 years; the first was vandetanib (Caprelsa), approved in April 2011. Before these approvals, "patients with this rare and difficult to treat disease had limited therapeutic treatment options," Dr. Richard Pazdur, director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research, said in the FDA’s Nov. 29 statement announcing the approval.
Cabozantinib will be marketed as Cometriq by Exelixis Inc. The recommended dose is 140 mg orally, without food (people taking the drug should not eat for at least 2 hours before and at least 1 hour after taking it). Exelixis is planning to make the drug available in late January, at an average wholesale price of $9,900 for a 28-day supply, according to the company.
In the EXAM study of 330 patients with metastatic medullary thyroid cancer, with evidence of actively progressive disease within 14 months of enrollment, the median progression-free survival was 11.2 months among those treated with cabozantinib, compared with 4 months among those on placebo, a statistically significant difference, according to the prescribing information. Partial responses were observed among 27% of those on cabozantinib but none of those on placebo, and the median duration of the objective response was 14.7 months among those on cabozantinib. At the planned interim analysis, there was no statistically significant difference in overall survival between the two groups.
The most common adverse events, reported in at least 25% of patients treated with cabozantinib, were diarrhea; stomatitis, palmar-plantar erythrodysesthesia syndrome; decreases in weight and appetite; nausea; fatigue; oral pain; hair color changes; dysgeusia; hypertension; abdominal pain; and constipation. The most common laboratory abnormalities, reported in at least 25% of patients, were increased AST, increased ALT, lymphopenia, increased alkaline phosphatase, hypocalcemia, neutropenia, thrombocytopenia, hypophosphatemia, and hyperbilirubinemia.
The prescribing information includes a boxed warning about severe and sometimes fatal hemorrhage (3%), and gastrointestinal perforations (3%) and fistulas (1%) were reported in patients treated with the drug.
The review of this drug was a priority review, completed in 6 months, which is used for drugs "that may offer major advances in treatment or that provide a treatment when no adequate therapy exists," the FDA statement said. The drug has also been designated an orphan drug, because medullary thyroid cancer is considered a rare disease.
As part of its postmarketing commitments, the FDA has requested that the company submit the final overall survival results of the study, expected to be submitted in December 2014, according to the agency’s approval letter. The letter also lists other postmarketing commitments, including the completion of a study comparing the approved dose of "a biologically active and potentially safer lower daily cabozantinib dose" in patients with progressive medullary thyroid cancer.
Cabozantinib is a kinase inhibitor that inhibits the activity of RET, MET, and other tyrosine kinases, which "are involved in both normal cellular function, and in pathologic processes such as oncogenesis, metastasis, tumor angiogenesis, and maintenance of the tumor microenvironment," according to the Exelixis statement announcing approval
The company also announced on Nov. 29 that the application for approval of cabozantinib, also based on the EXAM study, has been accepted by the European Medicines Agency for approval in the European Union.
The FDA statement cites estimates from the National Cancer Institute that 56,460 people will be diagnosed with thyroid cancer this year in the United States, and 1,780 will die from the disease, and about 4% percent of thyroid cancers are medullary thyroid cancer.
The drug’s label is available on the FDA website. Serious adverse events associated with the drug should be reported to the FDA’s MedWatch site or at 800-332-1088.
Cabozantinib, a kinase inhibitor, has been approved for the treatment of progressive, metastatic medullary thyroid cancer, on the basis of the results of an international study of 330 patients, the Food and Drug Administration has announced.
This is the second drug approved by the FDA for this indication in the past 2 years; the first was vandetanib (Caprelsa), approved in April 2011. Before these approvals, "patients with this rare and difficult to treat disease had limited therapeutic treatment options," Dr. Richard Pazdur, director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research, said in the FDA’s Nov. 29 statement announcing the approval.
Cabozantinib will be marketed as Cometriq by Exelixis Inc. The recommended dose is 140 mg orally, without food (people taking the drug should not eat for at least 2 hours before and at least 1 hour after taking it). Exelixis is planning to make the drug available in late January, at an average wholesale price of $9,900 for a 28-day supply, according to the company.
In the EXAM study of 330 patients with metastatic medullary thyroid cancer, with evidence of actively progressive disease within 14 months of enrollment, the median progression-free survival was 11.2 months among those treated with cabozantinib, compared with 4 months among those on placebo, a statistically significant difference, according to the prescribing information. Partial responses were observed among 27% of those on cabozantinib but none of those on placebo, and the median duration of the objective response was 14.7 months among those on cabozantinib. At the planned interim analysis, there was no statistically significant difference in overall survival between the two groups.
The most common adverse events, reported in at least 25% of patients treated with cabozantinib, were diarrhea; stomatitis, palmar-plantar erythrodysesthesia syndrome; decreases in weight and appetite; nausea; fatigue; oral pain; hair color changes; dysgeusia; hypertension; abdominal pain; and constipation. The most common laboratory abnormalities, reported in at least 25% of patients, were increased AST, increased ALT, lymphopenia, increased alkaline phosphatase, hypocalcemia, neutropenia, thrombocytopenia, hypophosphatemia, and hyperbilirubinemia.
The prescribing information includes a boxed warning about severe and sometimes fatal hemorrhage (3%), and gastrointestinal perforations (3%) and fistulas (1%) were reported in patients treated with the drug.
The review of this drug was a priority review, completed in 6 months, which is used for drugs "that may offer major advances in treatment or that provide a treatment when no adequate therapy exists," the FDA statement said. The drug has also been designated an orphan drug, because medullary thyroid cancer is considered a rare disease.
As part of its postmarketing commitments, the FDA has requested that the company submit the final overall survival results of the study, expected to be submitted in December 2014, according to the agency’s approval letter. The letter also lists other postmarketing commitments, including the completion of a study comparing the approved dose of "a biologically active and potentially safer lower daily cabozantinib dose" in patients with progressive medullary thyroid cancer.
Cabozantinib is a kinase inhibitor that inhibits the activity of RET, MET, and other tyrosine kinases, which "are involved in both normal cellular function, and in pathologic processes such as oncogenesis, metastasis, tumor angiogenesis, and maintenance of the tumor microenvironment," according to the Exelixis statement announcing approval
The company also announced on Nov. 29 that the application for approval of cabozantinib, also based on the EXAM study, has been accepted by the European Medicines Agency for approval in the European Union.
The FDA statement cites estimates from the National Cancer Institute that 56,460 people will be diagnosed with thyroid cancer this year in the United States, and 1,780 will die from the disease, and about 4% percent of thyroid cancers are medullary thyroid cancer.
The drug’s label is available on the FDA website. Serious adverse events associated with the drug should be reported to the FDA’s MedWatch site or at 800-332-1088.
Cabozantinib, a kinase inhibitor, has been approved for the treatment of progressive, metastatic medullary thyroid cancer, on the basis of the results of an international study of 330 patients, the Food and Drug Administration has announced.
This is the second drug approved by the FDA for this indication in the past 2 years; the first was vandetanib (Caprelsa), approved in April 2011. Before these approvals, "patients with this rare and difficult to treat disease had limited therapeutic treatment options," Dr. Richard Pazdur, director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research, said in the FDA’s Nov. 29 statement announcing the approval.
Cabozantinib will be marketed as Cometriq by Exelixis Inc. The recommended dose is 140 mg orally, without food (people taking the drug should not eat for at least 2 hours before and at least 1 hour after taking it). Exelixis is planning to make the drug available in late January, at an average wholesale price of $9,900 for a 28-day supply, according to the company.
In the EXAM study of 330 patients with metastatic medullary thyroid cancer, with evidence of actively progressive disease within 14 months of enrollment, the median progression-free survival was 11.2 months among those treated with cabozantinib, compared with 4 months among those on placebo, a statistically significant difference, according to the prescribing information. Partial responses were observed among 27% of those on cabozantinib but none of those on placebo, and the median duration of the objective response was 14.7 months among those on cabozantinib. At the planned interim analysis, there was no statistically significant difference in overall survival between the two groups.
The most common adverse events, reported in at least 25% of patients treated with cabozantinib, were diarrhea; stomatitis, palmar-plantar erythrodysesthesia syndrome; decreases in weight and appetite; nausea; fatigue; oral pain; hair color changes; dysgeusia; hypertension; abdominal pain; and constipation. The most common laboratory abnormalities, reported in at least 25% of patients, were increased AST, increased ALT, lymphopenia, increased alkaline phosphatase, hypocalcemia, neutropenia, thrombocytopenia, hypophosphatemia, and hyperbilirubinemia.
The prescribing information includes a boxed warning about severe and sometimes fatal hemorrhage (3%), and gastrointestinal perforations (3%) and fistulas (1%) were reported in patients treated with the drug.
The review of this drug was a priority review, completed in 6 months, which is used for drugs "that may offer major advances in treatment or that provide a treatment when no adequate therapy exists," the FDA statement said. The drug has also been designated an orphan drug, because medullary thyroid cancer is considered a rare disease.
As part of its postmarketing commitments, the FDA has requested that the company submit the final overall survival results of the study, expected to be submitted in December 2014, according to the agency’s approval letter. The letter also lists other postmarketing commitments, including the completion of a study comparing the approved dose of "a biologically active and potentially safer lower daily cabozantinib dose" in patients with progressive medullary thyroid cancer.
Cabozantinib is a kinase inhibitor that inhibits the activity of RET, MET, and other tyrosine kinases, which "are involved in both normal cellular function, and in pathologic processes such as oncogenesis, metastasis, tumor angiogenesis, and maintenance of the tumor microenvironment," according to the Exelixis statement announcing approval
The company also announced on Nov. 29 that the application for approval of cabozantinib, also based on the EXAM study, has been accepted by the European Medicines Agency for approval in the European Union.
The FDA statement cites estimates from the National Cancer Institute that 56,460 people will be diagnosed with thyroid cancer this year in the United States, and 1,780 will die from the disease, and about 4% percent of thyroid cancers are medullary thyroid cancer.
The drug’s label is available on the FDA website. Serious adverse events associated with the drug should be reported to the FDA’s MedWatch site or at 800-332-1088.
Doxepin Rinse Eases Mucositis Pain in Cancer Patients
BOSTON – An oral rinse solution of the antidepressant doxepin provided modest relief of pain from cancer treatment–induced oral mucositis in a randomized phase III trial.
Patients with head and neck cancer had a mean reduction of about two points on a 0-10 pain scale 30 minutes after using a doxepin rinse, compared with an approximate one-point reduction for patients who rinsed with a placebo (P = .0003), investigators reported at the annual meeting of the American Society for Radiation Oncology (ASTRO).
All patients in the trial had been treated with radiation with or without chemotherapy.
"Doxepin was used solely for pain relief. We did not expect it to reduce or prevent mucositis, but merely [to] treat the patients’ pain symptoms," said Dr. Robert C. Miller, a radiation oncologist at the Mayo Clinic in Rochester, Minn.
He added that "the efficacy of doxepin in treating oral mucositis pain caused by chemotherapy alone, by stem cell transplantation, or benign conditions such as aphthous ulcers warrants further study."
Conclusion Called Premature
Dr. Paul M. Harari, professor and chairman of human oncology at the University of Wisconsin, Madison, the invited discussant, agreed that oral mucositis "is a very real entity, one that impacts both patients and health care providers."
He applauded the trial’s multicenter, randomized design but noted that the overall reduction in mucositis pain with doxepin was modest, only one point better than placebo, and that mucositis pain is only one element of a host of acute and late toxicities of radiation and chemotherapy for patients with head and neck cancer.
He also said that the authors’ conclusion that "this study provides a new standard of treatment of radiotherapy-induced oral mucositis" is premature and warrants closer scrutiny.
"I would just caution for careful thought and further study before we introduce a new class of agents into the context of agents that head and neck cancer patients receive," he said. "Is this the most effective way to lower the pain score by one point in a transient measure?"
Antidepressant and Antihistamine
Doxepin is a tricyclic antidepressant with antihistaminic properties, approved in the United States for treatment of depression and anxiety as well as moderate pruritus. Preliminary data from a 2007 study suggested that doxepin could reduce mucositis pain in cancer patients (J. Pain Symptom Manage. 2007;33:111-4).
In the current study, patients with radiation to the head and neck, with or without chemotherapy and oral mucositis pain of four or greater on a 10-point pain assessment scale were enrolled. Patients received definitive radiotherapy with doses of at least 50 Gy involving more than 30% of the oral cavity.
The patients were randomized on day 1 in a double-blinded fashion to use either a single dose of either placebo or doxepin 25 mg in a 5-mL rinse and gargle, which they spat out after 1 minute. The trial had a crossover phase on day 2, with optional continuation of the active agent at the end of the study.
Participants filled out pain assessment questionnaires at baseline, four times in the first hour after rinse (in clinic), and then at 2 and 4 hours at home. Those who opted to continue doxepin filled out weekly questionnaires. Patients also were allowed to take analgesics 1 hour before or after doxepin.
A total of 140 patients (69 in the doxepin group, 71 on placebo) were available for the primary end point, total pain reduction as calculated by average mouth and throat pain area-under-the-curve (AUC) reduction over time. The AUC reduction was –9.1 among patients on doxepin, compared with –4.7 for those on placebo (P = .0003), Dr. Miller reported.
However, in 129 patients available for secondary end point analysis, doxepin, which has a known sedative effect, was associated with significantly more mean drowsiness over time (P = .03). Patients on doxepin also reported temporary unpleasant taste in the mouth, burning, and stinging, he said.
Asked whether they would continue doxepin after the randomized phase, 64% said yes and 36% declined (P = .002).
In a crossover analysis comparing the effects of doxepin and placebo in each patient, doxepin was seen to generate a benefit whether it was given before or after placebo (P less than .0001), he noted.
The study was conducted through the Alliance for Clinical Trials in Oncology and supported by a grant from the North Central Cancer Treatment Group and Mayo Clinic. Dr. Miller disclosed serving on the scientific advisory board of Tekcapital Ltd. Dr. Harari disclosed receiving research grants from the National Cancer Institute, Genentech, and Symphogen.
BOSTON – An oral rinse solution of the antidepressant doxepin provided modest relief of pain from cancer treatment–induced oral mucositis in a randomized phase III trial.
Patients with head and neck cancer had a mean reduction of about two points on a 0-10 pain scale 30 minutes after using a doxepin rinse, compared with an approximate one-point reduction for patients who rinsed with a placebo (P = .0003), investigators reported at the annual meeting of the American Society for Radiation Oncology (ASTRO).
All patients in the trial had been treated with radiation with or without chemotherapy.
"Doxepin was used solely for pain relief. We did not expect it to reduce or prevent mucositis, but merely [to] treat the patients’ pain symptoms," said Dr. Robert C. Miller, a radiation oncologist at the Mayo Clinic in Rochester, Minn.
He added that "the efficacy of doxepin in treating oral mucositis pain caused by chemotherapy alone, by stem cell transplantation, or benign conditions such as aphthous ulcers warrants further study."
Conclusion Called Premature
Dr. Paul M. Harari, professor and chairman of human oncology at the University of Wisconsin, Madison, the invited discussant, agreed that oral mucositis "is a very real entity, one that impacts both patients and health care providers."
He applauded the trial’s multicenter, randomized design but noted that the overall reduction in mucositis pain with doxepin was modest, only one point better than placebo, and that mucositis pain is only one element of a host of acute and late toxicities of radiation and chemotherapy for patients with head and neck cancer.
He also said that the authors’ conclusion that "this study provides a new standard of treatment of radiotherapy-induced oral mucositis" is premature and warrants closer scrutiny.
"I would just caution for careful thought and further study before we introduce a new class of agents into the context of agents that head and neck cancer patients receive," he said. "Is this the most effective way to lower the pain score by one point in a transient measure?"
Antidepressant and Antihistamine
Doxepin is a tricyclic antidepressant with antihistaminic properties, approved in the United States for treatment of depression and anxiety as well as moderate pruritus. Preliminary data from a 2007 study suggested that doxepin could reduce mucositis pain in cancer patients (J. Pain Symptom Manage. 2007;33:111-4).
In the current study, patients with radiation to the head and neck, with or without chemotherapy and oral mucositis pain of four or greater on a 10-point pain assessment scale were enrolled. Patients received definitive radiotherapy with doses of at least 50 Gy involving more than 30% of the oral cavity.
The patients were randomized on day 1 in a double-blinded fashion to use either a single dose of either placebo or doxepin 25 mg in a 5-mL rinse and gargle, which they spat out after 1 minute. The trial had a crossover phase on day 2, with optional continuation of the active agent at the end of the study.
Participants filled out pain assessment questionnaires at baseline, four times in the first hour after rinse (in clinic), and then at 2 and 4 hours at home. Those who opted to continue doxepin filled out weekly questionnaires. Patients also were allowed to take analgesics 1 hour before or after doxepin.
A total of 140 patients (69 in the doxepin group, 71 on placebo) were available for the primary end point, total pain reduction as calculated by average mouth and throat pain area-under-the-curve (AUC) reduction over time. The AUC reduction was –9.1 among patients on doxepin, compared with –4.7 for those on placebo (P = .0003), Dr. Miller reported.
However, in 129 patients available for secondary end point analysis, doxepin, which has a known sedative effect, was associated with significantly more mean drowsiness over time (P = .03). Patients on doxepin also reported temporary unpleasant taste in the mouth, burning, and stinging, he said.
Asked whether they would continue doxepin after the randomized phase, 64% said yes and 36% declined (P = .002).
In a crossover analysis comparing the effects of doxepin and placebo in each patient, doxepin was seen to generate a benefit whether it was given before or after placebo (P less than .0001), he noted.
The study was conducted through the Alliance for Clinical Trials in Oncology and supported by a grant from the North Central Cancer Treatment Group and Mayo Clinic. Dr. Miller disclosed serving on the scientific advisory board of Tekcapital Ltd. Dr. Harari disclosed receiving research grants from the National Cancer Institute, Genentech, and Symphogen.
BOSTON – An oral rinse solution of the antidepressant doxepin provided modest relief of pain from cancer treatment–induced oral mucositis in a randomized phase III trial.
Patients with head and neck cancer had a mean reduction of about two points on a 0-10 pain scale 30 minutes after using a doxepin rinse, compared with an approximate one-point reduction for patients who rinsed with a placebo (P = .0003), investigators reported at the annual meeting of the American Society for Radiation Oncology (ASTRO).
All patients in the trial had been treated with radiation with or without chemotherapy.
"Doxepin was used solely for pain relief. We did not expect it to reduce or prevent mucositis, but merely [to] treat the patients’ pain symptoms," said Dr. Robert C. Miller, a radiation oncologist at the Mayo Clinic in Rochester, Minn.
He added that "the efficacy of doxepin in treating oral mucositis pain caused by chemotherapy alone, by stem cell transplantation, or benign conditions such as aphthous ulcers warrants further study."
Conclusion Called Premature
Dr. Paul M. Harari, professor and chairman of human oncology at the University of Wisconsin, Madison, the invited discussant, agreed that oral mucositis "is a very real entity, one that impacts both patients and health care providers."
He applauded the trial’s multicenter, randomized design but noted that the overall reduction in mucositis pain with doxepin was modest, only one point better than placebo, and that mucositis pain is only one element of a host of acute and late toxicities of radiation and chemotherapy for patients with head and neck cancer.
He also said that the authors’ conclusion that "this study provides a new standard of treatment of radiotherapy-induced oral mucositis" is premature and warrants closer scrutiny.
"I would just caution for careful thought and further study before we introduce a new class of agents into the context of agents that head and neck cancer patients receive," he said. "Is this the most effective way to lower the pain score by one point in a transient measure?"
Antidepressant and Antihistamine
Doxepin is a tricyclic antidepressant with antihistaminic properties, approved in the United States for treatment of depression and anxiety as well as moderate pruritus. Preliminary data from a 2007 study suggested that doxepin could reduce mucositis pain in cancer patients (J. Pain Symptom Manage. 2007;33:111-4).
In the current study, patients with radiation to the head and neck, with or without chemotherapy and oral mucositis pain of four or greater on a 10-point pain assessment scale were enrolled. Patients received definitive radiotherapy with doses of at least 50 Gy involving more than 30% of the oral cavity.
The patients were randomized on day 1 in a double-blinded fashion to use either a single dose of either placebo or doxepin 25 mg in a 5-mL rinse and gargle, which they spat out after 1 minute. The trial had a crossover phase on day 2, with optional continuation of the active agent at the end of the study.
Participants filled out pain assessment questionnaires at baseline, four times in the first hour after rinse (in clinic), and then at 2 and 4 hours at home. Those who opted to continue doxepin filled out weekly questionnaires. Patients also were allowed to take analgesics 1 hour before or after doxepin.
A total of 140 patients (69 in the doxepin group, 71 on placebo) were available for the primary end point, total pain reduction as calculated by average mouth and throat pain area-under-the-curve (AUC) reduction over time. The AUC reduction was –9.1 among patients on doxepin, compared with –4.7 for those on placebo (P = .0003), Dr. Miller reported.
However, in 129 patients available for secondary end point analysis, doxepin, which has a known sedative effect, was associated with significantly more mean drowsiness over time (P = .03). Patients on doxepin also reported temporary unpleasant taste in the mouth, burning, and stinging, he said.
Asked whether they would continue doxepin after the randomized phase, 64% said yes and 36% declined (P = .002).
In a crossover analysis comparing the effects of doxepin and placebo in each patient, doxepin was seen to generate a benefit whether it was given before or after placebo (P less than .0001), he noted.
The study was conducted through the Alliance for Clinical Trials in Oncology and supported by a grant from the North Central Cancer Treatment Group and Mayo Clinic. Dr. Miller disclosed serving on the scientific advisory board of Tekcapital Ltd. Dr. Harari disclosed receiving research grants from the National Cancer Institute, Genentech, and Symphogen.
AT THE ANNUAL MEETING OF THE AMERICAN SOCIETY FOR RADIATION ONCOLOGY
Major Finding: Patients with radiation-induced oral mucositis had a mean reduction of about two points on a 0-10 pain scale 30 minutes after using a doxepin rinse, compared with an approximate one-point reduction for patients who rinsed with a placebo (P = .0003).
Data Source: This was a phase III randomized, double-blind, placebo-controlled crossover trial.
Disclosures: The study was conducted through the Alliance for Clinical Trials in Oncology and supported supported by a grant from the North Central Cancer Treatment Group and Mayo Clinic. Dr. Miller disclosed serving on the scientific advisory board of Tekcapital Ltd. Dr. Harari disclosed receiving research grants from the National Cancer Institute, Genentech, and Symphogen.
Robotic Surgery Beneficial in HPV-, Non-HPV-Related Oral Cancer
WASHINGTON – Oropharyngeal squamous cell cancer patients who underwent transoral robotic surgery had an overall 2-year survival rate of 87%, with no significant differences between patients who were positive vs. negative for the human papillomavirus, based on data from 52 patients.
HPV is associated with 45%-70% of cases of oropharyngeal squamous cell carcinoma (OPSCCa), said Dr. Kiran Kakarala, who conducted the study at Ohio State University in Columbus.
Previous studies have shown a significant difference in survival rates for patients with HPV-positive tumors, compared with those with negative tumors, Dr. Kakarala said. However, other studies have suggested that the use of transoral robotic surgery (TORS) for OPSCCa patients could narrow the gap in survival based on HPV status.
Dr. Kakarala and his colleagues reviewed data from 52 patients who underwent TORS with neck dissection and postoperative adjuvant treatment for previously untreated OPSCCa. The patients were part of a prospective single-arm cohort study at a single academic medical center.
HPV status was available for 42 patients; 36 were positive and 6 were negative. Demographic characteristics were not significantly different between the HPV-positive and negative patients. The mean age of the HPV-positive patients was 59 years, and the mean age of the negative patients was 57 years. The tonsil was the primary tumor site in 89% of the positive patients and 83% of the negative patients; the base of the tongue was the primary site in 11% of the positive patients and 17% of the negative patients.
HPV-positive patients had significantly higher N classifications based on the TNM Classification of Malignant Tumors, compared with HPV-negative patients (P = .015), and a significantly higher stage (P = .017). No significant differences were found in the number of HPV-positive vs. negative patients who received postoperative radiation or chemotherapy.
The 2-year survival rate was 87% for all 52 patients, 92% for HPV-positive patients, and 75% for HPV-negative patients. Two-year disease-specific survival rates were 92%, 92%, and 75%, respectively. Two-year disease-free survival rates were 86%, 97%, and 50%, respectively.
"The 2-year overall survival and disease-specific survival were not statistically different between HPV-positive and negative patients treated with TORS followed by radiation with or without chemotherapy as indicated," Dr. Kakarala said.
The study was limited by its small size and retrospective design, but the findings suggest a role for minimally invasive TORS in OPSCCa patients, he said.
"Randomized trials incorporating minimally invasive transoral surgical procedures with radiation therapy and chemotherapy, and comparing survival, quality of life, and cost outcomes between these treatment modalities, are indicated," he added.
The findings were presented at the annual meeting of the American Academy of Otolaryngology–Head and Neck Surgery Foundation.
Dr. Kakarala had no financial conflicts to disclose.
WASHINGTON – Oropharyngeal squamous cell cancer patients who underwent transoral robotic surgery had an overall 2-year survival rate of 87%, with no significant differences between patients who were positive vs. negative for the human papillomavirus, based on data from 52 patients.
HPV is associated with 45%-70% of cases of oropharyngeal squamous cell carcinoma (OPSCCa), said Dr. Kiran Kakarala, who conducted the study at Ohio State University in Columbus.
Previous studies have shown a significant difference in survival rates for patients with HPV-positive tumors, compared with those with negative tumors, Dr. Kakarala said. However, other studies have suggested that the use of transoral robotic surgery (TORS) for OPSCCa patients could narrow the gap in survival based on HPV status.
Dr. Kakarala and his colleagues reviewed data from 52 patients who underwent TORS with neck dissection and postoperative adjuvant treatment for previously untreated OPSCCa. The patients were part of a prospective single-arm cohort study at a single academic medical center.
HPV status was available for 42 patients; 36 were positive and 6 were negative. Demographic characteristics were not significantly different between the HPV-positive and negative patients. The mean age of the HPV-positive patients was 59 years, and the mean age of the negative patients was 57 years. The tonsil was the primary tumor site in 89% of the positive patients and 83% of the negative patients; the base of the tongue was the primary site in 11% of the positive patients and 17% of the negative patients.
HPV-positive patients had significantly higher N classifications based on the TNM Classification of Malignant Tumors, compared with HPV-negative patients (P = .015), and a significantly higher stage (P = .017). No significant differences were found in the number of HPV-positive vs. negative patients who received postoperative radiation or chemotherapy.
The 2-year survival rate was 87% for all 52 patients, 92% for HPV-positive patients, and 75% for HPV-negative patients. Two-year disease-specific survival rates were 92%, 92%, and 75%, respectively. Two-year disease-free survival rates were 86%, 97%, and 50%, respectively.
"The 2-year overall survival and disease-specific survival were not statistically different between HPV-positive and negative patients treated with TORS followed by radiation with or without chemotherapy as indicated," Dr. Kakarala said.
The study was limited by its small size and retrospective design, but the findings suggest a role for minimally invasive TORS in OPSCCa patients, he said.
"Randomized trials incorporating minimally invasive transoral surgical procedures with radiation therapy and chemotherapy, and comparing survival, quality of life, and cost outcomes between these treatment modalities, are indicated," he added.
The findings were presented at the annual meeting of the American Academy of Otolaryngology–Head and Neck Surgery Foundation.
Dr. Kakarala had no financial conflicts to disclose.
WASHINGTON – Oropharyngeal squamous cell cancer patients who underwent transoral robotic surgery had an overall 2-year survival rate of 87%, with no significant differences between patients who were positive vs. negative for the human papillomavirus, based on data from 52 patients.
HPV is associated with 45%-70% of cases of oropharyngeal squamous cell carcinoma (OPSCCa), said Dr. Kiran Kakarala, who conducted the study at Ohio State University in Columbus.
Previous studies have shown a significant difference in survival rates for patients with HPV-positive tumors, compared with those with negative tumors, Dr. Kakarala said. However, other studies have suggested that the use of transoral robotic surgery (TORS) for OPSCCa patients could narrow the gap in survival based on HPV status.
Dr. Kakarala and his colleagues reviewed data from 52 patients who underwent TORS with neck dissection and postoperative adjuvant treatment for previously untreated OPSCCa. The patients were part of a prospective single-arm cohort study at a single academic medical center.
HPV status was available for 42 patients; 36 were positive and 6 were negative. Demographic characteristics were not significantly different between the HPV-positive and negative patients. The mean age of the HPV-positive patients was 59 years, and the mean age of the negative patients was 57 years. The tonsil was the primary tumor site in 89% of the positive patients and 83% of the negative patients; the base of the tongue was the primary site in 11% of the positive patients and 17% of the negative patients.
HPV-positive patients had significantly higher N classifications based on the TNM Classification of Malignant Tumors, compared with HPV-negative patients (P = .015), and a significantly higher stage (P = .017). No significant differences were found in the number of HPV-positive vs. negative patients who received postoperative radiation or chemotherapy.
The 2-year survival rate was 87% for all 52 patients, 92% for HPV-positive patients, and 75% for HPV-negative patients. Two-year disease-specific survival rates were 92%, 92%, and 75%, respectively. Two-year disease-free survival rates were 86%, 97%, and 50%, respectively.
"The 2-year overall survival and disease-specific survival were not statistically different between HPV-positive and negative patients treated with TORS followed by radiation with or without chemotherapy as indicated," Dr. Kakarala said.
The study was limited by its small size and retrospective design, but the findings suggest a role for minimally invasive TORS in OPSCCa patients, he said.
"Randomized trials incorporating minimally invasive transoral surgical procedures with radiation therapy and chemotherapy, and comparing survival, quality of life, and cost outcomes between these treatment modalities, are indicated," he added.
The findings were presented at the annual meeting of the American Academy of Otolaryngology–Head and Neck Surgery Foundation.
Dr. Kakarala had no financial conflicts to disclose.
AT THE ANNUAL MEETING OF THE AMERICAN ACADEMY OF OTOLARYNGOLOGY – HEAD AND NECK SURGERY FOUNDATION
Major Finding: Oropharyngeal squamous cell carcinoma patients who underwent robotic surgery had a 2-year survival rate of 87%, with 92% survival for HPV-positive patients and 75% for HPV-negative patients.
Data Source: The data come from a review of 52 patients.
Disclosures: Dr. Kakarala had no financial conflicts to disclose.
CCR7 Predicts Cervical Metastasis in Oral Cancer
WASHINGTON – Chemokine receptor CCR7 expression is a significant predictor of cervical metastases in patients with squamous cell carcinoma in the oral cavity, based on data from 60 adults.
Metastatic spread of squamous cell carcinoma (SCC) is common, but the mechanisms behind the spread remain unclear, said Dr. Levi G. Ledgerwood of the University of California, Davis. "There has been a great deal of work that has looked at lymphocyte entry into lymphatics," he said at the annual meeting of the American Academy of Otolaryngology-Head and Neck Surgery Foundation.
Recent research has focused on the chemokine receptor CCR7, a cell-surface molecule that is required for T-cell entry from the bloodstream and peripheral tissues into lymphatics, he noted. Data from previous studies suggest that CCR7 might play a role in various cancers in the metastases of the lymph nodes.
Dr. Ledgerwood and his colleagues reviewed tissue samples from primary tumors in 60 oral SCC patients who underwent surgical resection at a single center between 2006 and 2011. The study included 30 samples from patients with metastases and 30 samples from patients without metastases. There were no significant demographic differences between the groups, although each group had more male than female patients, Dr. Ledgerwood noted. A total of 30 patients were node positive, and 30 were node negative.
Overall, patients with cervical metastases showed significantly higher CCR7 expression than those without cervical metastases (P less than .001). A total of 97% of node-positive patients were positive for CCR7 expression, but only 43% of patients without cervical metastases were positive for CCR7.
When the lymph nodes of the samples from metastatic cancer patients were examined, all 30 node-positive patients showed expression of CCR7, Dr. Ledgerwood added.
Although the study was limited by its small size, the results suggest a possible role for CCR7 in T-cell access to lymphatics, said Dr. Ledgerwood.
"This is a preliminary study, but we feel that this receptor could provide a very interesting target for future drug therapies and could also help in predicting the behavior of tumors," he said.
Dr. Ledgerwood had no financial conflicts to disclose.
WASHINGTON – Chemokine receptor CCR7 expression is a significant predictor of cervical metastases in patients with squamous cell carcinoma in the oral cavity, based on data from 60 adults.
Metastatic spread of squamous cell carcinoma (SCC) is common, but the mechanisms behind the spread remain unclear, said Dr. Levi G. Ledgerwood of the University of California, Davis. "There has been a great deal of work that has looked at lymphocyte entry into lymphatics," he said at the annual meeting of the American Academy of Otolaryngology-Head and Neck Surgery Foundation.
Recent research has focused on the chemokine receptor CCR7, a cell-surface molecule that is required for T-cell entry from the bloodstream and peripheral tissues into lymphatics, he noted. Data from previous studies suggest that CCR7 might play a role in various cancers in the metastases of the lymph nodes.
Dr. Ledgerwood and his colleagues reviewed tissue samples from primary tumors in 60 oral SCC patients who underwent surgical resection at a single center between 2006 and 2011. The study included 30 samples from patients with metastases and 30 samples from patients without metastases. There were no significant demographic differences between the groups, although each group had more male than female patients, Dr. Ledgerwood noted. A total of 30 patients were node positive, and 30 were node negative.
Overall, patients with cervical metastases showed significantly higher CCR7 expression than those without cervical metastases (P less than .001). A total of 97% of node-positive patients were positive for CCR7 expression, but only 43% of patients without cervical metastases were positive for CCR7.
When the lymph nodes of the samples from metastatic cancer patients were examined, all 30 node-positive patients showed expression of CCR7, Dr. Ledgerwood added.
Although the study was limited by its small size, the results suggest a possible role for CCR7 in T-cell access to lymphatics, said Dr. Ledgerwood.
"This is a preliminary study, but we feel that this receptor could provide a very interesting target for future drug therapies and could also help in predicting the behavior of tumors," he said.
Dr. Ledgerwood had no financial conflicts to disclose.
WASHINGTON – Chemokine receptor CCR7 expression is a significant predictor of cervical metastases in patients with squamous cell carcinoma in the oral cavity, based on data from 60 adults.
Metastatic spread of squamous cell carcinoma (SCC) is common, but the mechanisms behind the spread remain unclear, said Dr. Levi G. Ledgerwood of the University of California, Davis. "There has been a great deal of work that has looked at lymphocyte entry into lymphatics," he said at the annual meeting of the American Academy of Otolaryngology-Head and Neck Surgery Foundation.
Recent research has focused on the chemokine receptor CCR7, a cell-surface molecule that is required for T-cell entry from the bloodstream and peripheral tissues into lymphatics, he noted. Data from previous studies suggest that CCR7 might play a role in various cancers in the metastases of the lymph nodes.
Dr. Ledgerwood and his colleagues reviewed tissue samples from primary tumors in 60 oral SCC patients who underwent surgical resection at a single center between 2006 and 2011. The study included 30 samples from patients with metastases and 30 samples from patients without metastases. There were no significant demographic differences between the groups, although each group had more male than female patients, Dr. Ledgerwood noted. A total of 30 patients were node positive, and 30 were node negative.
Overall, patients with cervical metastases showed significantly higher CCR7 expression than those without cervical metastases (P less than .001). A total of 97% of node-positive patients were positive for CCR7 expression, but only 43% of patients without cervical metastases were positive for CCR7.
When the lymph nodes of the samples from metastatic cancer patients were examined, all 30 node-positive patients showed expression of CCR7, Dr. Ledgerwood added.
Although the study was limited by its small size, the results suggest a possible role for CCR7 in T-cell access to lymphatics, said Dr. Ledgerwood.
"This is a preliminary study, but we feel that this receptor could provide a very interesting target for future drug therapies and could also help in predicting the behavior of tumors," he said.
Dr. Ledgerwood had no financial conflicts to disclose.
AT THE ANNUAL MEETING OF THE AMERICAN ACADEMY OF OTOLARYNGOLOGY-HEAD AND NECK SURGERY FOUNDATION
DNA Alone Inadequate to Identify HPV-Related Cancers
Testing for the presence of human papillomavirus DNA alone, especially using polymerase chain reaction methods, is not adequate to identify which head and neck squamous cell carcinomas are caused by the virus, according to two studies published online Sept. 18 in Cancer Research.
Identifying HPV-driven malignancies is important because they respond better to treatment and have better outcomes than those unrelated to HPV infection. Indeed, treatment of head and neck squamous cell carcinoma (HNSCC) may soon be guided by the tumor’s HPV status, since trials are now underway to determine whether de-escalation of chemo- and radiotherapy is safe and effective in such patients.
At present, however, the biomarkers that are best suited to making this identification are unclear.
Case Series Assesses Biomarkers
In the first study, researchers assessed the usefulness of four biomarkers in determining which HNSCCs in a case series were driven by HPV. They began by examining fresh-frozen tumor biopsy samples from 199 German adults diagnosed as having oropharyngeal squamous cell cancer between 1990 and 2008.
The four biomarkers were HPV-16 viral load, viral oncogene RNA (E6 and E7), p16INK4a, and RNA patterns similar to those characteristic of cervical carcinomas (CxCa RNA), said Dr. Dana Holzinger of the German Cancer Research Center at Heidelberg (Germany) University and her associates.
The simple presence of HPV DNA in a tumor sample was found to be a poor indicator of prognosis, likely because it often signaled past HPV infections or recent oral exposure, rather than active HPV infection that progressed to malignancy, the investigators said (Cancer Res. 2012 Sept. 18 [doi: 10.1158/0008-5472.CAN-11-3934]).
Instead, "we showed that high viral load and a cancer-specific pattern of viral gene expression are most suited to identify patients with HPV-driven tumors among patients with oropharyngeal cancer. Viral expression pattern is a completely new marker in this field, and viral load has hardly been analyzed before," Dr. Holzinger said in a press statement accompanying the publication of these findings.
"Once standardized assays for these markers, applicable in routine clinical laboratories, are established, they will allow precise identification" of cancers that are or are not HPV-driven, which will in turn influence prognosis and treatment, she added.
Results Back Combination Approach
In the second study, Dr. Caihua Liang of Brown University, Providence, R.I., and her associates examined 488 HNSCC samples as well as serum samples collected in a population-based study in the Boston area during 1999-2003.
As in the first study, these investigators found that the mere presence of HPV-16 DNA in these tumors, particularly when detected by PCR analysis, did not accurately predict overall survival or progression-free survival.
Instead, "our study strongly suggests that the combination of detection of HPV-16 DNA in HNSCC tumors [plus] p16 immunostaining with E6/E7 antibodies represents the most clinically valuable surrogate marker for the identification of patients . . . who have a better prognosis," they said (Cancer Res. 2012 Sept. 28 [doi: 10.1158/0008-5472.CAN-11-3277]).
"Assessment of HPV DNA using polymerase chain reaction methods as a biomarker in individual head and neck cancers is a poor predictor of outcome, and is also poorly associated with antibody response indicative of exposure and/or infection by HPV," senior author Dr. Karl T. Kelsey added in the press statement.
"We may not be diagnosing these tumors as accurately and precisely as we need to for adjusting treatments," said Dr. Kelsey, a professor in the department of epidemiology and the department of pathology and laboratory medicine at Brown University.
Dr. Holzinger’s study was funded in part by the European Commission, BMBG/HGAF-Canceropole Grand-Est, and the German Research Foundation. Her associates reported ties to Qiagen and Roche. Dr. Liang’s study was supported by the National Institutes of Health and the Flight Attendant Medical Research Institute, and one associate reported ties to Bristol-Myers Squibb.
Both of these studies demonstrate that the HPV DNA status of head and neck squamous cell carcinomas should be interpreted with caution, said Dr. Eduardo Mendez.
"Further testing to confirm HPV active infection may be warranted, particularly in consideration of de-escalation regimens," he said. In addition, other prognostic factors should be taken into account, such as tumor classification and lymph node status.
Dr. Mendez is at the University of Washington/Fred Hutchinson Cancer Research Center, Seattle. He reported ties to Intuitive Surgical. These remarks were taken from his commentary accompanying Dr. Holzinger’s and Dr. Liang’s reports (Cancer Res. 2012 Sept. 18 [doi: 10.1158/0008-5472.CAN-12-3285]).
Both of these studies demonstrate that the HPV DNA status of head and neck squamous cell carcinomas should be interpreted with caution, said Dr. Eduardo Mendez.
"Further testing to confirm HPV active infection may be warranted, particularly in consideration of de-escalation regimens," he said. In addition, other prognostic factors should be taken into account, such as tumor classification and lymph node status.
Dr. Mendez is at the University of Washington/Fred Hutchinson Cancer Research Center, Seattle. He reported ties to Intuitive Surgical. These remarks were taken from his commentary accompanying Dr. Holzinger’s and Dr. Liang’s reports (Cancer Res. 2012 Sept. 18 [doi: 10.1158/0008-5472.CAN-12-3285]).
Both of these studies demonstrate that the HPV DNA status of head and neck squamous cell carcinomas should be interpreted with caution, said Dr. Eduardo Mendez.
"Further testing to confirm HPV active infection may be warranted, particularly in consideration of de-escalation regimens," he said. In addition, other prognostic factors should be taken into account, such as tumor classification and lymph node status.
Dr. Mendez is at the University of Washington/Fred Hutchinson Cancer Research Center, Seattle. He reported ties to Intuitive Surgical. These remarks were taken from his commentary accompanying Dr. Holzinger’s and Dr. Liang’s reports (Cancer Res. 2012 Sept. 18 [doi: 10.1158/0008-5472.CAN-12-3285]).
Testing for the presence of human papillomavirus DNA alone, especially using polymerase chain reaction methods, is not adequate to identify which head and neck squamous cell carcinomas are caused by the virus, according to two studies published online Sept. 18 in Cancer Research.
Identifying HPV-driven malignancies is important because they respond better to treatment and have better outcomes than those unrelated to HPV infection. Indeed, treatment of head and neck squamous cell carcinoma (HNSCC) may soon be guided by the tumor’s HPV status, since trials are now underway to determine whether de-escalation of chemo- and radiotherapy is safe and effective in such patients.
At present, however, the biomarkers that are best suited to making this identification are unclear.
Case Series Assesses Biomarkers
In the first study, researchers assessed the usefulness of four biomarkers in determining which HNSCCs in a case series were driven by HPV. They began by examining fresh-frozen tumor biopsy samples from 199 German adults diagnosed as having oropharyngeal squamous cell cancer between 1990 and 2008.
The four biomarkers were HPV-16 viral load, viral oncogene RNA (E6 and E7), p16INK4a, and RNA patterns similar to those characteristic of cervical carcinomas (CxCa RNA), said Dr. Dana Holzinger of the German Cancer Research Center at Heidelberg (Germany) University and her associates.
The simple presence of HPV DNA in a tumor sample was found to be a poor indicator of prognosis, likely because it often signaled past HPV infections or recent oral exposure, rather than active HPV infection that progressed to malignancy, the investigators said (Cancer Res. 2012 Sept. 18 [doi: 10.1158/0008-5472.CAN-11-3934]).
Instead, "we showed that high viral load and a cancer-specific pattern of viral gene expression are most suited to identify patients with HPV-driven tumors among patients with oropharyngeal cancer. Viral expression pattern is a completely new marker in this field, and viral load has hardly been analyzed before," Dr. Holzinger said in a press statement accompanying the publication of these findings.
"Once standardized assays for these markers, applicable in routine clinical laboratories, are established, they will allow precise identification" of cancers that are or are not HPV-driven, which will in turn influence prognosis and treatment, she added.
Results Back Combination Approach
In the second study, Dr. Caihua Liang of Brown University, Providence, R.I., and her associates examined 488 HNSCC samples as well as serum samples collected in a population-based study in the Boston area during 1999-2003.
As in the first study, these investigators found that the mere presence of HPV-16 DNA in these tumors, particularly when detected by PCR analysis, did not accurately predict overall survival or progression-free survival.
Instead, "our study strongly suggests that the combination of detection of HPV-16 DNA in HNSCC tumors [plus] p16 immunostaining with E6/E7 antibodies represents the most clinically valuable surrogate marker for the identification of patients . . . who have a better prognosis," they said (Cancer Res. 2012 Sept. 28 [doi: 10.1158/0008-5472.CAN-11-3277]).
"Assessment of HPV DNA using polymerase chain reaction methods as a biomarker in individual head and neck cancers is a poor predictor of outcome, and is also poorly associated with antibody response indicative of exposure and/or infection by HPV," senior author Dr. Karl T. Kelsey added in the press statement.
"We may not be diagnosing these tumors as accurately and precisely as we need to for adjusting treatments," said Dr. Kelsey, a professor in the department of epidemiology and the department of pathology and laboratory medicine at Brown University.
Dr. Holzinger’s study was funded in part by the European Commission, BMBG/HGAF-Canceropole Grand-Est, and the German Research Foundation. Her associates reported ties to Qiagen and Roche. Dr. Liang’s study was supported by the National Institutes of Health and the Flight Attendant Medical Research Institute, and one associate reported ties to Bristol-Myers Squibb.
Testing for the presence of human papillomavirus DNA alone, especially using polymerase chain reaction methods, is not adequate to identify which head and neck squamous cell carcinomas are caused by the virus, according to two studies published online Sept. 18 in Cancer Research.
Identifying HPV-driven malignancies is important because they respond better to treatment and have better outcomes than those unrelated to HPV infection. Indeed, treatment of head and neck squamous cell carcinoma (HNSCC) may soon be guided by the tumor’s HPV status, since trials are now underway to determine whether de-escalation of chemo- and radiotherapy is safe and effective in such patients.
At present, however, the biomarkers that are best suited to making this identification are unclear.
Case Series Assesses Biomarkers
In the first study, researchers assessed the usefulness of four biomarkers in determining which HNSCCs in a case series were driven by HPV. They began by examining fresh-frozen tumor biopsy samples from 199 German adults diagnosed as having oropharyngeal squamous cell cancer between 1990 and 2008.
The four biomarkers were HPV-16 viral load, viral oncogene RNA (E6 and E7), p16INK4a, and RNA patterns similar to those characteristic of cervical carcinomas (CxCa RNA), said Dr. Dana Holzinger of the German Cancer Research Center at Heidelberg (Germany) University and her associates.
The simple presence of HPV DNA in a tumor sample was found to be a poor indicator of prognosis, likely because it often signaled past HPV infections or recent oral exposure, rather than active HPV infection that progressed to malignancy, the investigators said (Cancer Res. 2012 Sept. 18 [doi: 10.1158/0008-5472.CAN-11-3934]).
Instead, "we showed that high viral load and a cancer-specific pattern of viral gene expression are most suited to identify patients with HPV-driven tumors among patients with oropharyngeal cancer. Viral expression pattern is a completely new marker in this field, and viral load has hardly been analyzed before," Dr. Holzinger said in a press statement accompanying the publication of these findings.
"Once standardized assays for these markers, applicable in routine clinical laboratories, are established, they will allow precise identification" of cancers that are or are not HPV-driven, which will in turn influence prognosis and treatment, she added.
Results Back Combination Approach
In the second study, Dr. Caihua Liang of Brown University, Providence, R.I., and her associates examined 488 HNSCC samples as well as serum samples collected in a population-based study in the Boston area during 1999-2003.
As in the first study, these investigators found that the mere presence of HPV-16 DNA in these tumors, particularly when detected by PCR analysis, did not accurately predict overall survival or progression-free survival.
Instead, "our study strongly suggests that the combination of detection of HPV-16 DNA in HNSCC tumors [plus] p16 immunostaining with E6/E7 antibodies represents the most clinically valuable surrogate marker for the identification of patients . . . who have a better prognosis," they said (Cancer Res. 2012 Sept. 28 [doi: 10.1158/0008-5472.CAN-11-3277]).
"Assessment of HPV DNA using polymerase chain reaction methods as a biomarker in individual head and neck cancers is a poor predictor of outcome, and is also poorly associated with antibody response indicative of exposure and/or infection by HPV," senior author Dr. Karl T. Kelsey added in the press statement.
"We may not be diagnosing these tumors as accurately and precisely as we need to for adjusting treatments," said Dr. Kelsey, a professor in the department of epidemiology and the department of pathology and laboratory medicine at Brown University.
Dr. Holzinger’s study was funded in part by the European Commission, BMBG/HGAF-Canceropole Grand-Est, and the German Research Foundation. Her associates reported ties to Qiagen and Roche. Dr. Liang’s study was supported by the National Institutes of Health and the Flight Attendant Medical Research Institute, and one associate reported ties to Bristol-Myers Squibb.
FROM CANCER RESEARCH
Major Finding: The simple presence of HPV DNA in tumor samples did not accurately identify which cancers were driven by active HPV infection, and thus did not predict which would show the greatest response to treatment.
Data Source: Two analyses were used to assess the prognostic accuracy of various biomarkers in tumor samples from adults with head and neck squamous cell carcinoma.
Disclosures: Dr. Holzinger’s study was funded in part by the European Commission, BMBG/HGAF-Canceropole Grand-Est, and the German Research Foundation. Her associates reported ties to Qiagen and Roche. Dr. Liang’s study was supported by the National Institutes of Health and the Flight Attendant Medical Research Institute, and one associate reported ties to Bristol-Myers Squibb.
Radiation Oncologists Say Medicare Cuts Could Shutter Practices
Radiation oncologists say they could be forced to shut their doors or consolidate their practices, if the proposed cuts to radiation therapy in the 2013 Medicare physician fee schedule are allowed to stay in place.
And this is likely to hasten a shift of services out of the community and into the hospital, according to officials at the American Society for Radiation Oncology (ASTRO), which surveyed its membership in the wake of the Centers for Medicare and Medicaid Services’ proposed rule in early July.
"Some patients will likely receive their care in radiation therapy centers at a far greater distance from their home in both hospital-based facilities and larger freestanding centers that survive these cuts," said Dr. Michael L. Steinberg, president of the ASTRO’s board of directors, in an interview.
With the closure of radiation therapy centers, physicians would seek employment in surviving freestanding or hospital-based facilities, he added,
The CMS is proposing a 15% reduction in payment for IMRT (Intensity Modulated Radiation Therapy) and SBRT (Stereotactic Body Radiation Therapy). The agency also proposed a 19% cut for community-based radiation therapy centers.
IMRT and SBRT account for about a third of Medicare spending on radiation therapy, according to a spokeswoman for the ASTRO. Medicare and Medicaid are the predominant payers for radiation therapy, which is delivered to two-thirds of the nation’s 1.5 million cancer patients annually.
The ASTRO survey, which was conducted online, received about 600 responses. (There are about 4,500 radiation oncologists in the United States.) Of the 599 who participated, almost 60% were from community practices or combined community- and hospital-based practices. The results reported were only for that 60%.
Physicians were not asked about the impact of the almost-29% overall cut in physician pay called for by Medicare’s Sustainable Growth Rate (SGR) formula.
If just the close-to-20% cut for radiation therapy centers goes into effect, 35% of practices said they would probably have to close their doors, and 64% said they would consolidate. Both actions would lead to longer wait times for treatment, said ASTRO CEO Laura Thevenot in a briefing with reporters.
The consequences may also mean that physicians will spend less time with patients – that is, with those patients who would still be able to access a radiation oncologist. Some 70% of respondents said they would limit Medicare patients if the cuts go through, and 49% said they would stop accepting Medicare patients altogether.
Radiation oncologists also said they would cut back on purchases of new technology and lay off support staff and other nonphysician employees.
"The likely end result for limited access to radiation therapy – an integral form of care used in nearly 70% of all cancer patients – would be an erosion in the gains in cure rates, quality of life, and other clinical outcomes that have been achieved in our country over the last 20 years," said Dr. Constantine A. Mantz, a radiation oncologist in Ft. Myers, Fla., during the press briefing.
Ms. Thevenot said that the CMS had used faulty information to calculate the true costs of IMRT and SBRT, and that the agency should revisit the codes for both procedures.
Added Dr. Steinberg in a statement, "ASTRO welcomes a comprehensive review of these procedure codes and supports the necessary sophistication of a process, such as provided by the [American Medical Association’s Relative Value Scale Update Committee (RUC)], to value complex medical procedures including IMRT and SBRT." He is also professor and chairman of radiation oncology at the University of California, Los Angeles.
According to Ms. Thevenot, IMRT was reviewed by AMA’s RUC in fall 2010, and SBRT was reviewed in February 2011.
The ASTRO has also enlisted the support of Congress to overturn the cuts. Representatives Joe Pitts (R-Penn.) and Frank Pallone (D-N.J.), along with Rep. Mike Rogers (R-Mich.), have been circulating a letter decrying the cuts that will eventually be sent to officials at the CMS. The organization says that a "similar bipartisan letter is being drafted in the Senate."
Radiation oncologists say they could be forced to shut their doors or consolidate their practices, if the proposed cuts to radiation therapy in the 2013 Medicare physician fee schedule are allowed to stay in place.
And this is likely to hasten a shift of services out of the community and into the hospital, according to officials at the American Society for Radiation Oncology (ASTRO), which surveyed its membership in the wake of the Centers for Medicare and Medicaid Services’ proposed rule in early July.
"Some patients will likely receive their care in radiation therapy centers at a far greater distance from their home in both hospital-based facilities and larger freestanding centers that survive these cuts," said Dr. Michael L. Steinberg, president of the ASTRO’s board of directors, in an interview.
With the closure of radiation therapy centers, physicians would seek employment in surviving freestanding or hospital-based facilities, he added,
The CMS is proposing a 15% reduction in payment for IMRT (Intensity Modulated Radiation Therapy) and SBRT (Stereotactic Body Radiation Therapy). The agency also proposed a 19% cut for community-based radiation therapy centers.
IMRT and SBRT account for about a third of Medicare spending on radiation therapy, according to a spokeswoman for the ASTRO. Medicare and Medicaid are the predominant payers for radiation therapy, which is delivered to two-thirds of the nation’s 1.5 million cancer patients annually.
The ASTRO survey, which was conducted online, received about 600 responses. (There are about 4,500 radiation oncologists in the United States.) Of the 599 who participated, almost 60% were from community practices or combined community- and hospital-based practices. The results reported were only for that 60%.
Physicians were not asked about the impact of the almost-29% overall cut in physician pay called for by Medicare’s Sustainable Growth Rate (SGR) formula.
If just the close-to-20% cut for radiation therapy centers goes into effect, 35% of practices said they would probably have to close their doors, and 64% said they would consolidate. Both actions would lead to longer wait times for treatment, said ASTRO CEO Laura Thevenot in a briefing with reporters.
The consequences may also mean that physicians will spend less time with patients – that is, with those patients who would still be able to access a radiation oncologist. Some 70% of respondents said they would limit Medicare patients if the cuts go through, and 49% said they would stop accepting Medicare patients altogether.
Radiation oncologists also said they would cut back on purchases of new technology and lay off support staff and other nonphysician employees.
"The likely end result for limited access to radiation therapy – an integral form of care used in nearly 70% of all cancer patients – would be an erosion in the gains in cure rates, quality of life, and other clinical outcomes that have been achieved in our country over the last 20 years," said Dr. Constantine A. Mantz, a radiation oncologist in Ft. Myers, Fla., during the press briefing.
Ms. Thevenot said that the CMS had used faulty information to calculate the true costs of IMRT and SBRT, and that the agency should revisit the codes for both procedures.
Added Dr. Steinberg in a statement, "ASTRO welcomes a comprehensive review of these procedure codes and supports the necessary sophistication of a process, such as provided by the [American Medical Association’s Relative Value Scale Update Committee (RUC)], to value complex medical procedures including IMRT and SBRT." He is also professor and chairman of radiation oncology at the University of California, Los Angeles.
According to Ms. Thevenot, IMRT was reviewed by AMA’s RUC in fall 2010, and SBRT was reviewed in February 2011.
The ASTRO has also enlisted the support of Congress to overturn the cuts. Representatives Joe Pitts (R-Penn.) and Frank Pallone (D-N.J.), along with Rep. Mike Rogers (R-Mich.), have been circulating a letter decrying the cuts that will eventually be sent to officials at the CMS. The organization says that a "similar bipartisan letter is being drafted in the Senate."
Radiation oncologists say they could be forced to shut their doors or consolidate their practices, if the proposed cuts to radiation therapy in the 2013 Medicare physician fee schedule are allowed to stay in place.
And this is likely to hasten a shift of services out of the community and into the hospital, according to officials at the American Society for Radiation Oncology (ASTRO), which surveyed its membership in the wake of the Centers for Medicare and Medicaid Services’ proposed rule in early July.
"Some patients will likely receive their care in radiation therapy centers at a far greater distance from their home in both hospital-based facilities and larger freestanding centers that survive these cuts," said Dr. Michael L. Steinberg, president of the ASTRO’s board of directors, in an interview.
With the closure of radiation therapy centers, physicians would seek employment in surviving freestanding or hospital-based facilities, he added,
The CMS is proposing a 15% reduction in payment for IMRT (Intensity Modulated Radiation Therapy) and SBRT (Stereotactic Body Radiation Therapy). The agency also proposed a 19% cut for community-based radiation therapy centers.
IMRT and SBRT account for about a third of Medicare spending on radiation therapy, according to a spokeswoman for the ASTRO. Medicare and Medicaid are the predominant payers for radiation therapy, which is delivered to two-thirds of the nation’s 1.5 million cancer patients annually.
The ASTRO survey, which was conducted online, received about 600 responses. (There are about 4,500 radiation oncologists in the United States.) Of the 599 who participated, almost 60% were from community practices or combined community- and hospital-based practices. The results reported were only for that 60%.
Physicians were not asked about the impact of the almost-29% overall cut in physician pay called for by Medicare’s Sustainable Growth Rate (SGR) formula.
If just the close-to-20% cut for radiation therapy centers goes into effect, 35% of practices said they would probably have to close their doors, and 64% said they would consolidate. Both actions would lead to longer wait times for treatment, said ASTRO CEO Laura Thevenot in a briefing with reporters.
The consequences may also mean that physicians will spend less time with patients – that is, with those patients who would still be able to access a radiation oncologist. Some 70% of respondents said they would limit Medicare patients if the cuts go through, and 49% said they would stop accepting Medicare patients altogether.
Radiation oncologists also said they would cut back on purchases of new technology and lay off support staff and other nonphysician employees.
"The likely end result for limited access to radiation therapy – an integral form of care used in nearly 70% of all cancer patients – would be an erosion in the gains in cure rates, quality of life, and other clinical outcomes that have been achieved in our country over the last 20 years," said Dr. Constantine A. Mantz, a radiation oncologist in Ft. Myers, Fla., during the press briefing.
Ms. Thevenot said that the CMS had used faulty information to calculate the true costs of IMRT and SBRT, and that the agency should revisit the codes for both procedures.
Added Dr. Steinberg in a statement, "ASTRO welcomes a comprehensive review of these procedure codes and supports the necessary sophistication of a process, such as provided by the [American Medical Association’s Relative Value Scale Update Committee (RUC)], to value complex medical procedures including IMRT and SBRT." He is also professor and chairman of radiation oncology at the University of California, Los Angeles.
According to Ms. Thevenot, IMRT was reviewed by AMA’s RUC in fall 2010, and SBRT was reviewed in February 2011.
The ASTRO has also enlisted the support of Congress to overturn the cuts. Representatives Joe Pitts (R-Penn.) and Frank Pallone (D-N.J.), along with Rep. Mike Rogers (R-Mich.), have been circulating a letter decrying the cuts that will eventually be sent to officials at the CMS. The organization says that a "similar bipartisan letter is being drafted in the Senate."