California Enacts Breast Density Notification Law

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California Enacts Breast Density Notification Law

California has become the fifth state to require that women receive information about breast density along with the results of their mammograms. Gov. Jerry Brown (D) signed SB 1538 on Sept. 22.

Under the law, a mammography report must note if the patient has dense breasts, point out that dense breasts can make it harder to evaluate a mammogram, and inform patients that having dense breasts may be associated with an increased risk of breast cancer.

Courtesy Rhoda Baer/National Cancer Institute (NCI)
California is the fifth state to require a breast density notification with mammogram results.

Once the law is in effect April 2, 2013, mammogram reports will advise women that the information is meant to inform conversations with their doctor so that together they can decide which screening options are right for them.

Gov. Brown vetoed similar legislation last year saying that it went too far by advising that additional screening may be beneficial. Four other states – Virginia, New York, Connecticut, and Texas – have also enacted breast density notification laws. Legislation is also being considered in a dozen other states and at the federal level, according to the advocacy group Are You Dense?.

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California has become the fifth state to require that women receive information about breast density along with the results of their mammograms. Gov. Jerry Brown (D) signed SB 1538 on Sept. 22.

Under the law, a mammography report must note if the patient has dense breasts, point out that dense breasts can make it harder to evaluate a mammogram, and inform patients that having dense breasts may be associated with an increased risk of breast cancer.

Courtesy Rhoda Baer/National Cancer Institute (NCI)
California is the fifth state to require a breast density notification with mammogram results.

Once the law is in effect April 2, 2013, mammogram reports will advise women that the information is meant to inform conversations with their doctor so that together they can decide which screening options are right for them.

Gov. Brown vetoed similar legislation last year saying that it went too far by advising that additional screening may be beneficial. Four other states – Virginia, New York, Connecticut, and Texas – have also enacted breast density notification laws. Legislation is also being considered in a dozen other states and at the federal level, according to the advocacy group Are You Dense?.

California has become the fifth state to require that women receive information about breast density along with the results of their mammograms. Gov. Jerry Brown (D) signed SB 1538 on Sept. 22.

Under the law, a mammography report must note if the patient has dense breasts, point out that dense breasts can make it harder to evaluate a mammogram, and inform patients that having dense breasts may be associated with an increased risk of breast cancer.

Courtesy Rhoda Baer/National Cancer Institute (NCI)
California is the fifth state to require a breast density notification with mammogram results.

Once the law is in effect April 2, 2013, mammogram reports will advise women that the information is meant to inform conversations with their doctor so that together they can decide which screening options are right for them.

Gov. Brown vetoed similar legislation last year saying that it went too far by advising that additional screening may be beneficial. Four other states – Virginia, New York, Connecticut, and Texas – have also enacted breast density notification laws. Legislation is also being considered in a dozen other states and at the federal level, according to the advocacy group Are You Dense?.

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Everolimus Reduces Breast Cancer Treatment Effects in Bone

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Everolimus Reduces Breast Cancer Treatment Effects in Bone

Adding everolimus to exemestane for the treatment of estrogen receptor–positive advanced breast cancer that is refractory to nonsteroidal aromatase inhibitors has beneficial effects on bone turnover and breast cancer progression in bone, according to an exploratory analysis of data from the BOLERO-2 trial.

Additional exploratory analyses demonstrate that everolimus (Afinitor) is well tolerated among postmenopausal women – including the elderly.

Everolimus is an inhibitor of mammalian target of rapamycin (mTOR), which has been implicated in resistance to standard endocrine therapy for estrogen receptor–positive breast cancer. Previously reported data from the double-blind, placebo-controlled phase III BOLERO-2 trial showed a significant clinical benefit with respect to the primary end point of progression-free survival when everolimus was added to the steroidal aromatase inhibitor exemestane (Aromasin).

The new findings were presented during poster sessions at the American Society of Clinical Oncology’s 2012 Breast Cancer Symposium.

To evaluate the bone-related effects of everolimus, investigators analyzed bone turnover marker levels and breast cancer progression in bone in BOLERO-2 patients who had bone metastases at baseline, including 184 patients who received placebo and 370 who received exemestane.

They found that active treatment with everolimus and exemestane was associated with improved levels of bone-specific alkaline phosphatase, amino-terminal propeptide of type 1 collagen, and C-terminal cross-linking telopeptide of type 1 collagen at 6- and 12-week follow-up.

The levels of each of these markers had increased at both time points in those receiving placebo, but had decreased in those receiving everolimus, Dr. Lowell L. Hart, a hematologist/oncologist in group practice in Fort Myers, Fla., and his colleagues reported (J. Clin. Oncol. 2012;30[suppl. 27; abstr. 102]).

Also, the cumulative incidence rate of breast cancer progressive disease in bone was lower in those who received everolimus, compared with those who received placebo (3.03% vs. 6.16% at day 60), they said, noting that this trend continued beyond 6 months.

Bone-related adverse events among the patients included in this analysis were grade 1/2, and occurred at a similar frequency in both groups (2.9% for the placebo group and 3.8% for the treatment group).

The safety and tolerability of everolimus were also evaluated in two additional exploratory analyses. In one, everolimus treatment was shown at a median of 12.5 months’ follow-up to be generally well tolerated among 492 postmenopausal women in the treatment group for the study.

Notable adverse events of all grades in those patients, compared with the 238 patients in the placebo group, included stomatitis (59% vs. 12%), rash (39% vs. 7%), pneumonitis (16% vs. 0%), and hyperglycemia (14% vs. less than 1%). Notable grade 3/4 events were stomatitis (8% vs. less than 1%), anemia (7% vs. less than 1%), hyperglycemia (5% vs. less than 1%), pneumonitis (3% vs. 0), and rash (1% vs. 0), reported Dr. Alejandra T. Perez, director of the breast cancer center at Memorial Cancer Institute in Hollywood, Fla.

The adverse events were manageable when patients were treated appropriately, Dr. Perez said (J. Clin. Oncol. 2012;30[suppl. 27; abstr. 103]).

For example, the study protocol permitted dose reduction or interruptions for the management of adverse events, and a look at the antitumor effects of treatment showed that results were consistent in those who received time-averaged doses less than 7.5 mg/day and those who received time-averaged doses greater than 7.5 mg/day (hazard ratios, 0.4 vs. 0.45, respectively). Those who developed stomatitis were treated with topical corticosteroids and/or mouthwashes containing nonsteroidal anti-inflammatories or anesthetics, and those with noninfectious pneumonitis were treated using a combination of radiographic imaging, oral corticosteroids, and temporary cessation of treatment.

Among the subset of study participants aged 65 years and older, the incidences of adverse events were similar or marginally lower than in the entire population, according to Dr. Hope S. Rugo of the University of California, San Francisco, and her colleagues.

For example, stomatitis occurred in 52% of those aged 65 and older who received everolimus, rash occurred in 32%, pneumonitis occurred in 15%, and hyperglycemia occurred in 13%. Grade 3/4 adverse events among those aged 70 years or older and reported only in those receiving everolimus included fatigue in 10%, anemia in 10%, hyperglycemia in 9%, stomatitis in 8%, dyspnea in 7%, pneumonitis in 5%, neutropenia in 3%, and hypertension in 3% (J. Clin. Oncol. 2012;30[suppl. 27; abstr. 104]).

Adding everolimus to exemestane was well tolerated both in the overall population and among elderly patients, and grade 3/4 adverse events were uncommon and manageable, Dr. Rugo noted. No new safety signals emerged.

Dr. Perez added that knowledge of adverse event management strategies is essential for optimizing tolerability and patient outcomes.

 

 

BOLERO-2 trial participants were postmenopausal women with estrogen receptor–positive breast cancer who relapsed or progressed on a nonsteroidal aromatase inhibitor. They were randomized to receive a 10-mg oral daily dose of everolimus plus 25 mg of exemestane once daily, or placebo and 25 mg of exemestane daily; treatment with everolimus conferred a median 4.2-month progression-free survival advantage, more than doubling the median progression-free survival from 3.2 months in the placebo group to 7.8 months in the treatment group. Based on these findings, the U.S. Food and Drug Administration approved the drug for this indication in July, making it the first mTOR inhibitor approved for advanced hormone receptor–positive breast cancer.

BOLERO-2 was sponsored by Novartis Pharmaceuticals. Dr. Rugo reported receiving research funding from Merck, Novartis, and Pfizer. Dr. Hart and Dr. Perez reported having no relevant financial disclosures.

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Adding everolimus to exemestane for the treatment of estrogen receptor–positive advanced breast cancer that is refractory to nonsteroidal aromatase inhibitors has beneficial effects on bone turnover and breast cancer progression in bone, according to an exploratory analysis of data from the BOLERO-2 trial.

Additional exploratory analyses demonstrate that everolimus (Afinitor) is well tolerated among postmenopausal women – including the elderly.

Everolimus is an inhibitor of mammalian target of rapamycin (mTOR), which has been implicated in resistance to standard endocrine therapy for estrogen receptor–positive breast cancer. Previously reported data from the double-blind, placebo-controlled phase III BOLERO-2 trial showed a significant clinical benefit with respect to the primary end point of progression-free survival when everolimus was added to the steroidal aromatase inhibitor exemestane (Aromasin).

The new findings were presented during poster sessions at the American Society of Clinical Oncology’s 2012 Breast Cancer Symposium.

To evaluate the bone-related effects of everolimus, investigators analyzed bone turnover marker levels and breast cancer progression in bone in BOLERO-2 patients who had bone metastases at baseline, including 184 patients who received placebo and 370 who received exemestane.

They found that active treatment with everolimus and exemestane was associated with improved levels of bone-specific alkaline phosphatase, amino-terminal propeptide of type 1 collagen, and C-terminal cross-linking telopeptide of type 1 collagen at 6- and 12-week follow-up.

The levels of each of these markers had increased at both time points in those receiving placebo, but had decreased in those receiving everolimus, Dr. Lowell L. Hart, a hematologist/oncologist in group practice in Fort Myers, Fla., and his colleagues reported (J. Clin. Oncol. 2012;30[suppl. 27; abstr. 102]).

Also, the cumulative incidence rate of breast cancer progressive disease in bone was lower in those who received everolimus, compared with those who received placebo (3.03% vs. 6.16% at day 60), they said, noting that this trend continued beyond 6 months.

Bone-related adverse events among the patients included in this analysis were grade 1/2, and occurred at a similar frequency in both groups (2.9% for the placebo group and 3.8% for the treatment group).

The safety and tolerability of everolimus were also evaluated in two additional exploratory analyses. In one, everolimus treatment was shown at a median of 12.5 months’ follow-up to be generally well tolerated among 492 postmenopausal women in the treatment group for the study.

Notable adverse events of all grades in those patients, compared with the 238 patients in the placebo group, included stomatitis (59% vs. 12%), rash (39% vs. 7%), pneumonitis (16% vs. 0%), and hyperglycemia (14% vs. less than 1%). Notable grade 3/4 events were stomatitis (8% vs. less than 1%), anemia (7% vs. less than 1%), hyperglycemia (5% vs. less than 1%), pneumonitis (3% vs. 0), and rash (1% vs. 0), reported Dr. Alejandra T. Perez, director of the breast cancer center at Memorial Cancer Institute in Hollywood, Fla.

The adverse events were manageable when patients were treated appropriately, Dr. Perez said (J. Clin. Oncol. 2012;30[suppl. 27; abstr. 103]).

For example, the study protocol permitted dose reduction or interruptions for the management of adverse events, and a look at the antitumor effects of treatment showed that results were consistent in those who received time-averaged doses less than 7.5 mg/day and those who received time-averaged doses greater than 7.5 mg/day (hazard ratios, 0.4 vs. 0.45, respectively). Those who developed stomatitis were treated with topical corticosteroids and/or mouthwashes containing nonsteroidal anti-inflammatories or anesthetics, and those with noninfectious pneumonitis were treated using a combination of radiographic imaging, oral corticosteroids, and temporary cessation of treatment.

Among the subset of study participants aged 65 years and older, the incidences of adverse events were similar or marginally lower than in the entire population, according to Dr. Hope S. Rugo of the University of California, San Francisco, and her colleagues.

For example, stomatitis occurred in 52% of those aged 65 and older who received everolimus, rash occurred in 32%, pneumonitis occurred in 15%, and hyperglycemia occurred in 13%. Grade 3/4 adverse events among those aged 70 years or older and reported only in those receiving everolimus included fatigue in 10%, anemia in 10%, hyperglycemia in 9%, stomatitis in 8%, dyspnea in 7%, pneumonitis in 5%, neutropenia in 3%, and hypertension in 3% (J. Clin. Oncol. 2012;30[suppl. 27; abstr. 104]).

Adding everolimus to exemestane was well tolerated both in the overall population and among elderly patients, and grade 3/4 adverse events were uncommon and manageable, Dr. Rugo noted. No new safety signals emerged.

Dr. Perez added that knowledge of adverse event management strategies is essential for optimizing tolerability and patient outcomes.

 

 

BOLERO-2 trial participants were postmenopausal women with estrogen receptor–positive breast cancer who relapsed or progressed on a nonsteroidal aromatase inhibitor. They were randomized to receive a 10-mg oral daily dose of everolimus plus 25 mg of exemestane once daily, or placebo and 25 mg of exemestane daily; treatment with everolimus conferred a median 4.2-month progression-free survival advantage, more than doubling the median progression-free survival from 3.2 months in the placebo group to 7.8 months in the treatment group. Based on these findings, the U.S. Food and Drug Administration approved the drug for this indication in July, making it the first mTOR inhibitor approved for advanced hormone receptor–positive breast cancer.

BOLERO-2 was sponsored by Novartis Pharmaceuticals. Dr. Rugo reported receiving research funding from Merck, Novartis, and Pfizer. Dr. Hart and Dr. Perez reported having no relevant financial disclosures.

Adding everolimus to exemestane for the treatment of estrogen receptor–positive advanced breast cancer that is refractory to nonsteroidal aromatase inhibitors has beneficial effects on bone turnover and breast cancer progression in bone, according to an exploratory analysis of data from the BOLERO-2 trial.

Additional exploratory analyses demonstrate that everolimus (Afinitor) is well tolerated among postmenopausal women – including the elderly.

Everolimus is an inhibitor of mammalian target of rapamycin (mTOR), which has been implicated in resistance to standard endocrine therapy for estrogen receptor–positive breast cancer. Previously reported data from the double-blind, placebo-controlled phase III BOLERO-2 trial showed a significant clinical benefit with respect to the primary end point of progression-free survival when everolimus was added to the steroidal aromatase inhibitor exemestane (Aromasin).

The new findings were presented during poster sessions at the American Society of Clinical Oncology’s 2012 Breast Cancer Symposium.

To evaluate the bone-related effects of everolimus, investigators analyzed bone turnover marker levels and breast cancer progression in bone in BOLERO-2 patients who had bone metastases at baseline, including 184 patients who received placebo and 370 who received exemestane.

They found that active treatment with everolimus and exemestane was associated with improved levels of bone-specific alkaline phosphatase, amino-terminal propeptide of type 1 collagen, and C-terminal cross-linking telopeptide of type 1 collagen at 6- and 12-week follow-up.

The levels of each of these markers had increased at both time points in those receiving placebo, but had decreased in those receiving everolimus, Dr. Lowell L. Hart, a hematologist/oncologist in group practice in Fort Myers, Fla., and his colleagues reported (J. Clin. Oncol. 2012;30[suppl. 27; abstr. 102]).

Also, the cumulative incidence rate of breast cancer progressive disease in bone was lower in those who received everolimus, compared with those who received placebo (3.03% vs. 6.16% at day 60), they said, noting that this trend continued beyond 6 months.

Bone-related adverse events among the patients included in this analysis were grade 1/2, and occurred at a similar frequency in both groups (2.9% for the placebo group and 3.8% for the treatment group).

The safety and tolerability of everolimus were also evaluated in two additional exploratory analyses. In one, everolimus treatment was shown at a median of 12.5 months’ follow-up to be generally well tolerated among 492 postmenopausal women in the treatment group for the study.

Notable adverse events of all grades in those patients, compared with the 238 patients in the placebo group, included stomatitis (59% vs. 12%), rash (39% vs. 7%), pneumonitis (16% vs. 0%), and hyperglycemia (14% vs. less than 1%). Notable grade 3/4 events were stomatitis (8% vs. less than 1%), anemia (7% vs. less than 1%), hyperglycemia (5% vs. less than 1%), pneumonitis (3% vs. 0), and rash (1% vs. 0), reported Dr. Alejandra T. Perez, director of the breast cancer center at Memorial Cancer Institute in Hollywood, Fla.

The adverse events were manageable when patients were treated appropriately, Dr. Perez said (J. Clin. Oncol. 2012;30[suppl. 27; abstr. 103]).

For example, the study protocol permitted dose reduction or interruptions for the management of adverse events, and a look at the antitumor effects of treatment showed that results were consistent in those who received time-averaged doses less than 7.5 mg/day and those who received time-averaged doses greater than 7.5 mg/day (hazard ratios, 0.4 vs. 0.45, respectively). Those who developed stomatitis were treated with topical corticosteroids and/or mouthwashes containing nonsteroidal anti-inflammatories or anesthetics, and those with noninfectious pneumonitis were treated using a combination of radiographic imaging, oral corticosteroids, and temporary cessation of treatment.

Among the subset of study participants aged 65 years and older, the incidences of adverse events were similar or marginally lower than in the entire population, according to Dr. Hope S. Rugo of the University of California, San Francisco, and her colleagues.

For example, stomatitis occurred in 52% of those aged 65 and older who received everolimus, rash occurred in 32%, pneumonitis occurred in 15%, and hyperglycemia occurred in 13%. Grade 3/4 adverse events among those aged 70 years or older and reported only in those receiving everolimus included fatigue in 10%, anemia in 10%, hyperglycemia in 9%, stomatitis in 8%, dyspnea in 7%, pneumonitis in 5%, neutropenia in 3%, and hypertension in 3% (J. Clin. Oncol. 2012;30[suppl. 27; abstr. 104]).

Adding everolimus to exemestane was well tolerated both in the overall population and among elderly patients, and grade 3/4 adverse events were uncommon and manageable, Dr. Rugo noted. No new safety signals emerged.

Dr. Perez added that knowledge of adverse event management strategies is essential for optimizing tolerability and patient outcomes.

 

 

BOLERO-2 trial participants were postmenopausal women with estrogen receptor–positive breast cancer who relapsed or progressed on a nonsteroidal aromatase inhibitor. They were randomized to receive a 10-mg oral daily dose of everolimus plus 25 mg of exemestane once daily, or placebo and 25 mg of exemestane daily; treatment with everolimus conferred a median 4.2-month progression-free survival advantage, more than doubling the median progression-free survival from 3.2 months in the placebo group to 7.8 months in the treatment group. Based on these findings, the U.S. Food and Drug Administration approved the drug for this indication in July, making it the first mTOR inhibitor approved for advanced hormone receptor–positive breast cancer.

BOLERO-2 was sponsored by Novartis Pharmaceuticals. Dr. Rugo reported receiving research funding from Merck, Novartis, and Pfizer. Dr. Hart and Dr. Perez reported having no relevant financial disclosures.

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FROM THE 2012 BREAST CANCER SYMPOSIUM

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Major Finding: Treatment with everolimus and exemestane was associated with improved levels of bone-specific alkaline phosphatase, amino-terminal propeptide of type 1 collagen, and C-terminal cross-linking telopeptide of type 1 collagen at 6- and 12-week follow-up. Treatment was also shown to be well tolerated.

Data Source: Exploratory analyses of data from the phase III BOLERO-2 trial.

Disclosures: BOLERO-2 was sponsored by Novartis Pharmaceuticals. Dr. Rugo reported receiving research funding from Merck, Novartis, and Pfizer. Dr. Hart and Dr. Perez reported having no relevant financial disclosures.

FDA Approves Ultrasound Screening of Dense Breasts

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The first ultrasound device to boost breast cancer detection in women with dense breasts won approval Sept. 18 from the Food and Drug Administration as a screening tool for use in combination with standard mammography.

The somo-v Automated Breast Ultrasound System (ABUS) device was approved in 2005 as an adjunct to mammography. This new decision broadens its authorized use to asymptomatic women who have no evidence of breast cancer and whose mammograms are negative.

Images: ©2011 U-Systems, Inc. All Rights Reserved.
The somo-v Automated Breast Ultrasound (ABUS) device

Whether a woman has dense breasts would be determined by a physician, according to the FDA announcement. Women who have had a previous clinical breast intervention, such as a surgery or biopsy, would not be eligible for the device, "since this might alter the appearance of breast tissue in an ultrasound image," the FDA said.

Breast cancer detection by mammography is more challenging in dense breasts, which have a high amount of fibroglandular tissue, as compared with the fatty tissue seen in less-dense breasts. "Fibroglandular breast tissue and tumors both appear as solid white areas on mammograms. As a result, dense breast tissue may obscure smaller tumors, potentially delaying detection of breast cancer," the FDA noted in its announcement.

A recent study reported dense breasts do not increase risk of death from breast cancer, but that dense breasts are associated with greater risk of developing the disease (J. Natl. Cancer Inst. 2012 [doi:10.1093/jnci/djs327]).

In addition, lobbying efforts have sought to mandate that mammography reports notify women who have dense breasts that they may benefit from additional screening.

The go-ahead for ultrasound screening follows a unanimous 13-0 endorsement in April from the agency’s Radiological Devices Panel. That advisory group agreed that the device’s benefits outweigh any risks for breast cancer screening. The FDA had been concerned about the generalization of a pivotal study to a broad population but the panel deemed the noninvasive device to be safe and effective.

The retrospective multireader study involved 200 women at 13 U.S. sites. All had dense breasts, and reviews by board-certified radiologists showed a statistically significant increase in breast cancer detection when the device was used with mammography as compared with mammography alone.

As a condition of approval, Sunnyvale, Calif.–based U-Systems Inc., which makes the device, must provide thorough training for physicians and technologists, and provide facilities with "a manual clearly defining system tests required for initial, periodic, and yearly quality control measures."

"Enabling radiologists to use the information obtained from mammography and integrate that with the information obtained with ultrasound, leverages the potential of ABUS in a screening environment to find the 30% additional cancers that would not have been found with mammography alone," said Ron Ho, president and CEO of U-Systems, maker of the somo-v ABUS. "Research shows that ABUS can help find cancer in women with dense breasts, and that the cancers are smaller and early stage. With formal approval, we are moving rapidly from development to commercialization and look forward to making the somo-v ABUS system more widely available across the United States."

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The first ultrasound device to boost breast cancer detection in women with dense breasts won approval Sept. 18 from the Food and Drug Administration as a screening tool for use in combination with standard mammography.

The somo-v Automated Breast Ultrasound System (ABUS) device was approved in 2005 as an adjunct to mammography. This new decision broadens its authorized use to asymptomatic women who have no evidence of breast cancer and whose mammograms are negative.

Images: ©2011 U-Systems, Inc. All Rights Reserved.
The somo-v Automated Breast Ultrasound (ABUS) device

Whether a woman has dense breasts would be determined by a physician, according to the FDA announcement. Women who have had a previous clinical breast intervention, such as a surgery or biopsy, would not be eligible for the device, "since this might alter the appearance of breast tissue in an ultrasound image," the FDA said.

Breast cancer detection by mammography is more challenging in dense breasts, which have a high amount of fibroglandular tissue, as compared with the fatty tissue seen in less-dense breasts. "Fibroglandular breast tissue and tumors both appear as solid white areas on mammograms. As a result, dense breast tissue may obscure smaller tumors, potentially delaying detection of breast cancer," the FDA noted in its announcement.

A recent study reported dense breasts do not increase risk of death from breast cancer, but that dense breasts are associated with greater risk of developing the disease (J. Natl. Cancer Inst. 2012 [doi:10.1093/jnci/djs327]).

In addition, lobbying efforts have sought to mandate that mammography reports notify women who have dense breasts that they may benefit from additional screening.

The go-ahead for ultrasound screening follows a unanimous 13-0 endorsement in April from the agency’s Radiological Devices Panel. That advisory group agreed that the device’s benefits outweigh any risks for breast cancer screening. The FDA had been concerned about the generalization of a pivotal study to a broad population but the panel deemed the noninvasive device to be safe and effective.

The retrospective multireader study involved 200 women at 13 U.S. sites. All had dense breasts, and reviews by board-certified radiologists showed a statistically significant increase in breast cancer detection when the device was used with mammography as compared with mammography alone.

As a condition of approval, Sunnyvale, Calif.–based U-Systems Inc., which makes the device, must provide thorough training for physicians and technologists, and provide facilities with "a manual clearly defining system tests required for initial, periodic, and yearly quality control measures."

"Enabling radiologists to use the information obtained from mammography and integrate that with the information obtained with ultrasound, leverages the potential of ABUS in a screening environment to find the 30% additional cancers that would not have been found with mammography alone," said Ron Ho, president and CEO of U-Systems, maker of the somo-v ABUS. "Research shows that ABUS can help find cancer in women with dense breasts, and that the cancers are smaller and early stage. With formal approval, we are moving rapidly from development to commercialization and look forward to making the somo-v ABUS system more widely available across the United States."

The first ultrasound device to boost breast cancer detection in women with dense breasts won approval Sept. 18 from the Food and Drug Administration as a screening tool for use in combination with standard mammography.

The somo-v Automated Breast Ultrasound System (ABUS) device was approved in 2005 as an adjunct to mammography. This new decision broadens its authorized use to asymptomatic women who have no evidence of breast cancer and whose mammograms are negative.

Images: ©2011 U-Systems, Inc. All Rights Reserved.
The somo-v Automated Breast Ultrasound (ABUS) device

Whether a woman has dense breasts would be determined by a physician, according to the FDA announcement. Women who have had a previous clinical breast intervention, such as a surgery or biopsy, would not be eligible for the device, "since this might alter the appearance of breast tissue in an ultrasound image," the FDA said.

Breast cancer detection by mammography is more challenging in dense breasts, which have a high amount of fibroglandular tissue, as compared with the fatty tissue seen in less-dense breasts. "Fibroglandular breast tissue and tumors both appear as solid white areas on mammograms. As a result, dense breast tissue may obscure smaller tumors, potentially delaying detection of breast cancer," the FDA noted in its announcement.

A recent study reported dense breasts do not increase risk of death from breast cancer, but that dense breasts are associated with greater risk of developing the disease (J. Natl. Cancer Inst. 2012 [doi:10.1093/jnci/djs327]).

In addition, lobbying efforts have sought to mandate that mammography reports notify women who have dense breasts that they may benefit from additional screening.

The go-ahead for ultrasound screening follows a unanimous 13-0 endorsement in April from the agency’s Radiological Devices Panel. That advisory group agreed that the device’s benefits outweigh any risks for breast cancer screening. The FDA had been concerned about the generalization of a pivotal study to a broad population but the panel deemed the noninvasive device to be safe and effective.

The retrospective multireader study involved 200 women at 13 U.S. sites. All had dense breasts, and reviews by board-certified radiologists showed a statistically significant increase in breast cancer detection when the device was used with mammography as compared with mammography alone.

As a condition of approval, Sunnyvale, Calif.–based U-Systems Inc., which makes the device, must provide thorough training for physicians and technologists, and provide facilities with "a manual clearly defining system tests required for initial, periodic, and yearly quality control measures."

"Enabling radiologists to use the information obtained from mammography and integrate that with the information obtained with ultrasound, leverages the potential of ABUS in a screening environment to find the 30% additional cancers that would not have been found with mammography alone," said Ron Ho, president and CEO of U-Systems, maker of the somo-v ABUS. "Research shows that ABUS can help find cancer in women with dense breasts, and that the cancers are smaller and early stage. With formal approval, we are moving rapidly from development to commercialization and look forward to making the somo-v ABUS system more widely available across the United States."

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EMILIA Study: T-DMI Prolongs Progression-Free and Overall Survival

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The investigational drug trastuzumab emtansine, or T-DM1, was well tolerated and was associated with significantly prolonged progression-free survival compared with combination capecitabine/lapatinib (XL) treatment in 978 patients with HER2-positive metastatic breast cancer.

The antibody-drug conjugate, which combines the antitumor activity of the monoclonal antibody trastuzumab with the cytotoxic effects of the maytansine derivative DM1, also improved overall survival.

The median progression-free survival among those randomized to receive T-DM1 was 9.6 months, compared with 6.4 months for those treated with XL (stratified hazard ratio, 0.65) – a difference that was both statistically significant (P less than .0001) and clinically meaningful, said Dr. Mark D. Pegram of Stanford (Calif.) University’s Stanford Cancer Institute.

The findings were noted in the first planned interim analysis of the randomized, open-label, phase III EMILIA study. Overall survival at 1 year was 84.7% and 77% in the T-DM1 and XL groups, respectively, and overall survival at 2 years was 65.4% and 47.5% for the groups, respectively (J. Clin. Oncol. 30, 2012 [suppl 27 abstr 98]). The objective response rate was 43.6% vs. 30.8%, and the duration of response among those with an objective response was a median of 12.6 months vs. 6.5 months, Dr. Pegram said.

The findings were presented at the American Society of Clinical Oncology’s 2012 Breast Cancer Symposium.

The findings with respect to overall survival, based on this analysis, showed a trend in favor of T-DM1 (stratified hazard ratio, 0.621; P less than .0005), but the difference between the two treatment groups did not technically achieve statistical significance, Dr. Pegram said.

However, the overall survival analysis was recently updated, and the latest findings did demonstrate a statistically significant overall survival advantage with T-DM1 treatment, he noted.

The detailed findings from that latest analysis will be reported publicly for the first time at the European Society for Medical Oncology 2012 Congress to be held Oct. 1. Roche/Genentech Inc., maker of T-DM1, resubmitted to the Food and Drug Administration an application for accelerated approval of the agent. The company has said it plans to provide the FDA, which refused to file the initial application for accelerated approval submitted in 2010, with the updated overall survival analysis data when the agency reviews the application.

EMILIA participants were women with confirmed HER2-positive metastatic breast cancer who had been treated previously with trastuzumab and a taxane. They were randomized to receive 3.6 mg/kg of intravenous T-DMI every 3 weeks, or combination therapy with an oral twice-daily dose of 1,000 mg/m2 of capecitabine on days 1-4 every 3 weeks and an oral dose once daily of 1,240 mg of lapatinib; the XL combination treatment is currently the only approved combination treatment for trastuzumab-refractory HER2-positive metastatic breast cancer.

Patients in the T-DM1 and XL groups were followed for a median of 12.9 and 12.4 months, respectively, and progression-free survival was determined by independent review.

T-DM1 was well tolerated; no unexpected safety signals emerged. The most common grade 3 or higher adverse events in the T-DM1 patients were thrombocytopenia (12.9% vs. 0.2% of T-DMI vs. XL patients), increased AST (4.3% vs. 0.8%), and increased ALT (2.9% vs. 1.4%). The most common adverse events in the XL patients were diarrhea (20.7% vs. 1.6% of the XL vs. T-DM1 patients), palmar plantar erythrodysesthesia (16.4% vs. 0), and vomiting (4.5% vs. 0.8%).

Dose reductions were required in 16.3% of T-DM1 patients, whereas lapatinib doses were reduced in 27.3% of the XL patients, and capecitabine doses were reduced in 53.4% of the XL patients.

The EMILIA trial is sponsored by Genentech. Dr. Pegram reported serving as a consultant or adviser for Takeda, receiving honoraria from AstraZeneca and GlaxoSmithKline, receiving research funding from Sanofi, providing expert testimony for Novartis, and receiving other remuneration from Bristol-Myers Squibb, Pfizer, and Roche/Genentech.

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The investigational drug trastuzumab emtansine, or T-DM1, was well tolerated and was associated with significantly prolonged progression-free survival compared with combination capecitabine/lapatinib (XL) treatment in 978 patients with HER2-positive metastatic breast cancer.

The antibody-drug conjugate, which combines the antitumor activity of the monoclonal antibody trastuzumab with the cytotoxic effects of the maytansine derivative DM1, also improved overall survival.

The median progression-free survival among those randomized to receive T-DM1 was 9.6 months, compared with 6.4 months for those treated with XL (stratified hazard ratio, 0.65) – a difference that was both statistically significant (P less than .0001) and clinically meaningful, said Dr. Mark D. Pegram of Stanford (Calif.) University’s Stanford Cancer Institute.

The findings were noted in the first planned interim analysis of the randomized, open-label, phase III EMILIA study. Overall survival at 1 year was 84.7% and 77% in the T-DM1 and XL groups, respectively, and overall survival at 2 years was 65.4% and 47.5% for the groups, respectively (J. Clin. Oncol. 30, 2012 [suppl 27 abstr 98]). The objective response rate was 43.6% vs. 30.8%, and the duration of response among those with an objective response was a median of 12.6 months vs. 6.5 months, Dr. Pegram said.

The findings were presented at the American Society of Clinical Oncology’s 2012 Breast Cancer Symposium.

The findings with respect to overall survival, based on this analysis, showed a trend in favor of T-DM1 (stratified hazard ratio, 0.621; P less than .0005), but the difference between the two treatment groups did not technically achieve statistical significance, Dr. Pegram said.

However, the overall survival analysis was recently updated, and the latest findings did demonstrate a statistically significant overall survival advantage with T-DM1 treatment, he noted.

The detailed findings from that latest analysis will be reported publicly for the first time at the European Society for Medical Oncology 2012 Congress to be held Oct. 1. Roche/Genentech Inc., maker of T-DM1, resubmitted to the Food and Drug Administration an application for accelerated approval of the agent. The company has said it plans to provide the FDA, which refused to file the initial application for accelerated approval submitted in 2010, with the updated overall survival analysis data when the agency reviews the application.

EMILIA participants were women with confirmed HER2-positive metastatic breast cancer who had been treated previously with trastuzumab and a taxane. They were randomized to receive 3.6 mg/kg of intravenous T-DMI every 3 weeks, or combination therapy with an oral twice-daily dose of 1,000 mg/m2 of capecitabine on days 1-4 every 3 weeks and an oral dose once daily of 1,240 mg of lapatinib; the XL combination treatment is currently the only approved combination treatment for trastuzumab-refractory HER2-positive metastatic breast cancer.

Patients in the T-DM1 and XL groups were followed for a median of 12.9 and 12.4 months, respectively, and progression-free survival was determined by independent review.

T-DM1 was well tolerated; no unexpected safety signals emerged. The most common grade 3 or higher adverse events in the T-DM1 patients were thrombocytopenia (12.9% vs. 0.2% of T-DMI vs. XL patients), increased AST (4.3% vs. 0.8%), and increased ALT (2.9% vs. 1.4%). The most common adverse events in the XL patients were diarrhea (20.7% vs. 1.6% of the XL vs. T-DM1 patients), palmar plantar erythrodysesthesia (16.4% vs. 0), and vomiting (4.5% vs. 0.8%).

Dose reductions were required in 16.3% of T-DM1 patients, whereas lapatinib doses were reduced in 27.3% of the XL patients, and capecitabine doses were reduced in 53.4% of the XL patients.

The EMILIA trial is sponsored by Genentech. Dr. Pegram reported serving as a consultant or adviser for Takeda, receiving honoraria from AstraZeneca and GlaxoSmithKline, receiving research funding from Sanofi, providing expert testimony for Novartis, and receiving other remuneration from Bristol-Myers Squibb, Pfizer, and Roche/Genentech.

The investigational drug trastuzumab emtansine, or T-DM1, was well tolerated and was associated with significantly prolonged progression-free survival compared with combination capecitabine/lapatinib (XL) treatment in 978 patients with HER2-positive metastatic breast cancer.

The antibody-drug conjugate, which combines the antitumor activity of the monoclonal antibody trastuzumab with the cytotoxic effects of the maytansine derivative DM1, also improved overall survival.

The median progression-free survival among those randomized to receive T-DM1 was 9.6 months, compared with 6.4 months for those treated with XL (stratified hazard ratio, 0.65) – a difference that was both statistically significant (P less than .0001) and clinically meaningful, said Dr. Mark D. Pegram of Stanford (Calif.) University’s Stanford Cancer Institute.

The findings were noted in the first planned interim analysis of the randomized, open-label, phase III EMILIA study. Overall survival at 1 year was 84.7% and 77% in the T-DM1 and XL groups, respectively, and overall survival at 2 years was 65.4% and 47.5% for the groups, respectively (J. Clin. Oncol. 30, 2012 [suppl 27 abstr 98]). The objective response rate was 43.6% vs. 30.8%, and the duration of response among those with an objective response was a median of 12.6 months vs. 6.5 months, Dr. Pegram said.

The findings were presented at the American Society of Clinical Oncology’s 2012 Breast Cancer Symposium.

The findings with respect to overall survival, based on this analysis, showed a trend in favor of T-DM1 (stratified hazard ratio, 0.621; P less than .0005), but the difference between the two treatment groups did not technically achieve statistical significance, Dr. Pegram said.

However, the overall survival analysis was recently updated, and the latest findings did demonstrate a statistically significant overall survival advantage with T-DM1 treatment, he noted.

The detailed findings from that latest analysis will be reported publicly for the first time at the European Society for Medical Oncology 2012 Congress to be held Oct. 1. Roche/Genentech Inc., maker of T-DM1, resubmitted to the Food and Drug Administration an application for accelerated approval of the agent. The company has said it plans to provide the FDA, which refused to file the initial application for accelerated approval submitted in 2010, with the updated overall survival analysis data when the agency reviews the application.

EMILIA participants were women with confirmed HER2-positive metastatic breast cancer who had been treated previously with trastuzumab and a taxane. They were randomized to receive 3.6 mg/kg of intravenous T-DMI every 3 weeks, or combination therapy with an oral twice-daily dose of 1,000 mg/m2 of capecitabine on days 1-4 every 3 weeks and an oral dose once daily of 1,240 mg of lapatinib; the XL combination treatment is currently the only approved combination treatment for trastuzumab-refractory HER2-positive metastatic breast cancer.

Patients in the T-DM1 and XL groups were followed for a median of 12.9 and 12.4 months, respectively, and progression-free survival was determined by independent review.

T-DM1 was well tolerated; no unexpected safety signals emerged. The most common grade 3 or higher adverse events in the T-DM1 patients were thrombocytopenia (12.9% vs. 0.2% of T-DMI vs. XL patients), increased AST (4.3% vs. 0.8%), and increased ALT (2.9% vs. 1.4%). The most common adverse events in the XL patients were diarrhea (20.7% vs. 1.6% of the XL vs. T-DM1 patients), palmar plantar erythrodysesthesia (16.4% vs. 0), and vomiting (4.5% vs. 0.8%).

Dose reductions were required in 16.3% of T-DM1 patients, whereas lapatinib doses were reduced in 27.3% of the XL patients, and capecitabine doses were reduced in 53.4% of the XL patients.

The EMILIA trial is sponsored by Genentech. Dr. Pegram reported serving as a consultant or adviser for Takeda, receiving honoraria from AstraZeneca and GlaxoSmithKline, receiving research funding from Sanofi, providing expert testimony for Novartis, and receiving other remuneration from Bristol-Myers Squibb, Pfizer, and Roche/Genentech.

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investigational drug trastuzumab emtansine, T-DM1, progression-free survival, combination capecitabine/lapatinib (XL) treatment, HER2-positive metastatic breast cancer, antitumor activity, monoclonal antibody trastuzumab, cytotoxic effects, maytansine derivative DM1
Legacy Keywords
investigational drug trastuzumab emtansine, T-DM1, progression-free survival, combination capecitabine/lapatinib (XL) treatment, HER2-positive metastatic breast cancer, antitumor activity, monoclonal antibody trastuzumab, cytotoxic effects, maytansine derivative DM1
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FROM THE 2012 BREAST CANCER SYMPOSIUM

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Vitals

Major Finding: The median progression-free survival among those randomized to receive trastuzumab emtansine was 9.6 months, compared with 6.4 months for those treated with capecitabine/lapatinib (stratified hazard ratio, 0.65).

Data Source: The randomized, open label, phase III EMILIA study.

Disclosures: The EMILIA study is sponsored by Genentech. Dr. Pegram reported serving as a consultant or adviser for Takeda, receiving honoraria from AstraZeneca and GlaxoSmithKline, receiving research funding from Sanofi, providing expert testimony for Novartis, and receiving other remuneration from Bristol-Myers Squibb, Pfizer, and Roche/Genentech.

Is Anyone Listening?

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Is Anyone Listening?

Let’s picture a couple you’re seeing in your oncology practice. Susan is 52; Mike’s 54. They’re well educated, employed, and making a comfortable income. They’ve been married a long while; in fact, they recently celebrated their 25th anniversary.

About a month ago, Sue underwent surgery for early-stage breast cancer.

Photo AbleStock.com
Social constraint may be a major problem for a patient's adjustment to cancer and for how the marriage will adapt to this major life challenge.    

They may seem to you to be doing okay as a couple, especially considering the physical and emotional adjustments they’ve had to make since the diagnosis, but if it were possible to order the equivalent of an fMRI or PET scan of your patient’s emotions, you would see that not all is well. In the report’s social-cognitive processing section, the diagnosis would be "Socially constrained."

What it means in a nutshell is that Sue doesn’t feel that she can openly share her thoughts or feelings about her cancer – or really, even about the more mundane events in her life – with Mike.

And that could be a major problem for her adjustment to cancer and for how the marriage will adapt to this major life challenge.

A recent study (J. Fam. Psychology 2012: 26:661-7) examined the concept of social constraints in 45 newly diagnosed breast cancer patients and their spouses or significant others, beginning about a month after surgery. They defined social constraints as "the extent to which the patient perceived that her spouse avoided, rebuffed, or appeared disinterested in the patient’s attempt to share or discuss her cancer-related concerns."

An example, taken from one questionnaire utilized in the study: "How often did your spouse change the subject when you tried to discuss your illness?"

The authors, led by Elizabeth C. Pasipanodya of the University of Delaware, emphasized that social constraints are in the eye of the beholder and don’t necessarily reflect "objective signs of negativity, disinterest, or withdrawal."

In other words, if Sue perceives that Mike doesn’t want to hear about her symptoms or concerns, she’ll respond in a socially constrained way, keeping those feelings to herself, regardless of how Mike truly feels.

Indeed, in the study, the authors found no correlation between patients’ and spouses’ perceptions of social constraint in their relationships, even though they were in agreement, on average, about the quality of their marriages.

Associations with social constraint were powerful.

While female partners shared the "best event of the day" with their spouses 86% of the time, high patient-reported social constraint made that positive conversation 71% less likely (P less than .001). Not surprisingly, perhaps, the effect lost significance when investigators controlled for patient-reported marital quality.

Patients’ self-reported "worst event of the day" was shared with spouses 78% of the time but was also significantly (P less than .001) less likely to be shared among patients with high levels of social constraint. This time, the significance held, even when controlling for patient-reported marital quality.

Finally, when a cancer-related event was the "worst event of the day," patients shared the experience with a spouse 71% of the time, but significantly less so in the context of social constraint (P less than .03). Marital quality mediated the significance.

Among patients, self-reported social constraint was significantly associated with daily negative affect and lower self-esteem, intimacy, and marital happiness.

Past research demonstrates an association between social constraints and negative emotional and health outcomes in bereavement and diabetes. Among amputees, social constraint predicts depressive symptoms and posttraumatic stress disorder. Among cancer patients in previous studies, it is linked with intrusive thoughts and depressive symptoms.

In the Delaware study, "the patient’s perceptions seem to matter more than what the partner says he is doing," the authors concluded.

"Given that the promotion of relationship enhancement is a predominant intervention approach for couples at the early stages of cancer, our results suggest that social constraints should also be considered as a possible target of intervention separate from improving overall marital quality," Ms. Pasipanodya and her associates said.

As an oncologist, you have much to consider as you meet with a couple a month after breast cancer surgery, and social constraint in the relationship may be better addressed by the mental health professionals associated with your practice.

But it would be helpful to keep an eye out for signs of constraint, to enable you to connect at-risk couples with help early on in their cancer experience.

When Susan describes her side effects and concerns, is Mike, by chance, averting his gaze?

 

 

Dr. Freed is a psychologist in Santa Barbara, Calif., and a medical journalist.

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Let’s picture a couple you’re seeing in your oncology practice. Susan is 52; Mike’s 54. They’re well educated, employed, and making a comfortable income. They’ve been married a long while; in fact, they recently celebrated their 25th anniversary.

About a month ago, Sue underwent surgery for early-stage breast cancer.

Photo AbleStock.com
Social constraint may be a major problem for a patient's adjustment to cancer and for how the marriage will adapt to this major life challenge.    

They may seem to you to be doing okay as a couple, especially considering the physical and emotional adjustments they’ve had to make since the diagnosis, but if it were possible to order the equivalent of an fMRI or PET scan of your patient’s emotions, you would see that not all is well. In the report’s social-cognitive processing section, the diagnosis would be "Socially constrained."

What it means in a nutshell is that Sue doesn’t feel that she can openly share her thoughts or feelings about her cancer – or really, even about the more mundane events in her life – with Mike.

And that could be a major problem for her adjustment to cancer and for how the marriage will adapt to this major life challenge.

A recent study (J. Fam. Psychology 2012: 26:661-7) examined the concept of social constraints in 45 newly diagnosed breast cancer patients and their spouses or significant others, beginning about a month after surgery. They defined social constraints as "the extent to which the patient perceived that her spouse avoided, rebuffed, or appeared disinterested in the patient’s attempt to share or discuss her cancer-related concerns."

An example, taken from one questionnaire utilized in the study: "How often did your spouse change the subject when you tried to discuss your illness?"

The authors, led by Elizabeth C. Pasipanodya of the University of Delaware, emphasized that social constraints are in the eye of the beholder and don’t necessarily reflect "objective signs of negativity, disinterest, or withdrawal."

In other words, if Sue perceives that Mike doesn’t want to hear about her symptoms or concerns, she’ll respond in a socially constrained way, keeping those feelings to herself, regardless of how Mike truly feels.

Indeed, in the study, the authors found no correlation between patients’ and spouses’ perceptions of social constraint in their relationships, even though they were in agreement, on average, about the quality of their marriages.

Associations with social constraint were powerful.

While female partners shared the "best event of the day" with their spouses 86% of the time, high patient-reported social constraint made that positive conversation 71% less likely (P less than .001). Not surprisingly, perhaps, the effect lost significance when investigators controlled for patient-reported marital quality.

Patients’ self-reported "worst event of the day" was shared with spouses 78% of the time but was also significantly (P less than .001) less likely to be shared among patients with high levels of social constraint. This time, the significance held, even when controlling for patient-reported marital quality.

Finally, when a cancer-related event was the "worst event of the day," patients shared the experience with a spouse 71% of the time, but significantly less so in the context of social constraint (P less than .03). Marital quality mediated the significance.

Among patients, self-reported social constraint was significantly associated with daily negative affect and lower self-esteem, intimacy, and marital happiness.

Past research demonstrates an association between social constraints and negative emotional and health outcomes in bereavement and diabetes. Among amputees, social constraint predicts depressive symptoms and posttraumatic stress disorder. Among cancer patients in previous studies, it is linked with intrusive thoughts and depressive symptoms.

In the Delaware study, "the patient’s perceptions seem to matter more than what the partner says he is doing," the authors concluded.

"Given that the promotion of relationship enhancement is a predominant intervention approach for couples at the early stages of cancer, our results suggest that social constraints should also be considered as a possible target of intervention separate from improving overall marital quality," Ms. Pasipanodya and her associates said.

As an oncologist, you have much to consider as you meet with a couple a month after breast cancer surgery, and social constraint in the relationship may be better addressed by the mental health professionals associated with your practice.

But it would be helpful to keep an eye out for signs of constraint, to enable you to connect at-risk couples with help early on in their cancer experience.

When Susan describes her side effects and concerns, is Mike, by chance, averting his gaze?

 

 

Dr. Freed is a psychologist in Santa Barbara, Calif., and a medical journalist.

Let’s picture a couple you’re seeing in your oncology practice. Susan is 52; Mike’s 54. They’re well educated, employed, and making a comfortable income. They’ve been married a long while; in fact, they recently celebrated their 25th anniversary.

About a month ago, Sue underwent surgery for early-stage breast cancer.

Photo AbleStock.com
Social constraint may be a major problem for a patient's adjustment to cancer and for how the marriage will adapt to this major life challenge.    

They may seem to you to be doing okay as a couple, especially considering the physical and emotional adjustments they’ve had to make since the diagnosis, but if it were possible to order the equivalent of an fMRI or PET scan of your patient’s emotions, you would see that not all is well. In the report’s social-cognitive processing section, the diagnosis would be "Socially constrained."

What it means in a nutshell is that Sue doesn’t feel that she can openly share her thoughts or feelings about her cancer – or really, even about the more mundane events in her life – with Mike.

And that could be a major problem for her adjustment to cancer and for how the marriage will adapt to this major life challenge.

A recent study (J. Fam. Psychology 2012: 26:661-7) examined the concept of social constraints in 45 newly diagnosed breast cancer patients and their spouses or significant others, beginning about a month after surgery. They defined social constraints as "the extent to which the patient perceived that her spouse avoided, rebuffed, or appeared disinterested in the patient’s attempt to share or discuss her cancer-related concerns."

An example, taken from one questionnaire utilized in the study: "How often did your spouse change the subject when you tried to discuss your illness?"

The authors, led by Elizabeth C. Pasipanodya of the University of Delaware, emphasized that social constraints are in the eye of the beholder and don’t necessarily reflect "objective signs of negativity, disinterest, or withdrawal."

In other words, if Sue perceives that Mike doesn’t want to hear about her symptoms or concerns, she’ll respond in a socially constrained way, keeping those feelings to herself, regardless of how Mike truly feels.

Indeed, in the study, the authors found no correlation between patients’ and spouses’ perceptions of social constraint in their relationships, even though they were in agreement, on average, about the quality of their marriages.

Associations with social constraint were powerful.

While female partners shared the "best event of the day" with their spouses 86% of the time, high patient-reported social constraint made that positive conversation 71% less likely (P less than .001). Not surprisingly, perhaps, the effect lost significance when investigators controlled for patient-reported marital quality.

Patients’ self-reported "worst event of the day" was shared with spouses 78% of the time but was also significantly (P less than .001) less likely to be shared among patients with high levels of social constraint. This time, the significance held, even when controlling for patient-reported marital quality.

Finally, when a cancer-related event was the "worst event of the day," patients shared the experience with a spouse 71% of the time, but significantly less so in the context of social constraint (P less than .03). Marital quality mediated the significance.

Among patients, self-reported social constraint was significantly associated with daily negative affect and lower self-esteem, intimacy, and marital happiness.

Past research demonstrates an association between social constraints and negative emotional and health outcomes in bereavement and diabetes. Among amputees, social constraint predicts depressive symptoms and posttraumatic stress disorder. Among cancer patients in previous studies, it is linked with intrusive thoughts and depressive symptoms.

In the Delaware study, "the patient’s perceptions seem to matter more than what the partner says he is doing," the authors concluded.

"Given that the promotion of relationship enhancement is a predominant intervention approach for couples at the early stages of cancer, our results suggest that social constraints should also be considered as a possible target of intervention separate from improving overall marital quality," Ms. Pasipanodya and her associates said.

As an oncologist, you have much to consider as you meet with a couple a month after breast cancer surgery, and social constraint in the relationship may be better addressed by the mental health professionals associated with your practice.

But it would be helpful to keep an eye out for signs of constraint, to enable you to connect at-risk couples with help early on in their cancer experience.

When Susan describes her side effects and concerns, is Mike, by chance, averting his gaze?

 

 

Dr. Freed is a psychologist in Santa Barbara, Calif., and a medical journalist.

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Can Counseling Add Value to an Exercise Intervention for Improving Quality of Life in Breast Cancer Survivors? A Feasibility Study

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Can Counseling Add Value to an Exercise Intervention for Improving Quality of Life in Breast Cancer Survivors? A Feasibility Study
Exercise may not assist in all survivors' needs, particularly fear of recurrence and uncertainty for the future. Psychological interventions may be more appropriate to meet these needs.

Fiona Naumann, PhD

, Eric Martin, Martin Philpott, PhD, Cathie Smith, Masters, Diane Groff, PhD, Claudio Battaglini, PhD

Abstract

Background

Improved survivorship has led to increased recognition of the need to manage the side effects of cancer and its treatment. Exercise and psychological interventions benefit survivors; however, it is unknown if additional benefits can be gained by combining these two modalities.

Objective

Our purpose was to examine the feasibility of delivering an exercise and counseling intervention to 43 breast cancer survivors, to determine if counseling can add value to an exercise intervention for improving quality of life (QOL) in terms of physical and psychological function.

Methods

We compared exercise only (Ex), counseling only (C), exercise and counseling (ExC), and usual care (UsC) over an 8 week intervention.

Results

In all, 93% of participants completed the interventions, with no adverse effects documented. There were significant improvements in VO2max as well as upper body and lower body strength in the ExC and Ex groups compared to the C and UsC groups (P < .05). Significant improvements on the Beck Depression Inventory were observed in the ExC and Ex groups, compared with UsC (P < .04), with significant reduction in fatigue for the ExC group, compared with UsC, and no significant differences in QOL change between groups, although the ExC group had significant clinical improvement.

Limitations

Limitations included small subject number and study of only breast cancer survivors.

Conclusions

These preliminary results suggest that a combined exercise and psychological counseling program is both feasible and acceptable for breast cancer survivors and may improve QOL more than would a single-entity intervention.

*For a PDF of the full article, click on the link to the left of this introduction.

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Exercise may not assist in all survivors' needs, particularly fear of recurrence and uncertainty for the future. Psychological interventions may be more appropriate to meet these needs.
Exercise may not assist in all survivors' needs, particularly fear of recurrence and uncertainty for the future. Psychological interventions may be more appropriate to meet these needs.

Fiona Naumann, PhD

, Eric Martin, Martin Philpott, PhD, Cathie Smith, Masters, Diane Groff, PhD, Claudio Battaglini, PhD

Abstract

Background

Improved survivorship has led to increased recognition of the need to manage the side effects of cancer and its treatment. Exercise and psychological interventions benefit survivors; however, it is unknown if additional benefits can be gained by combining these two modalities.

Objective

Our purpose was to examine the feasibility of delivering an exercise and counseling intervention to 43 breast cancer survivors, to determine if counseling can add value to an exercise intervention for improving quality of life (QOL) in terms of physical and psychological function.

Methods

We compared exercise only (Ex), counseling only (C), exercise and counseling (ExC), and usual care (UsC) over an 8 week intervention.

Results

In all, 93% of participants completed the interventions, with no adverse effects documented. There were significant improvements in VO2max as well as upper body and lower body strength in the ExC and Ex groups compared to the C and UsC groups (P < .05). Significant improvements on the Beck Depression Inventory were observed in the ExC and Ex groups, compared with UsC (P < .04), with significant reduction in fatigue for the ExC group, compared with UsC, and no significant differences in QOL change between groups, although the ExC group had significant clinical improvement.

Limitations

Limitations included small subject number and study of only breast cancer survivors.

Conclusions

These preliminary results suggest that a combined exercise and psychological counseling program is both feasible and acceptable for breast cancer survivors and may improve QOL more than would a single-entity intervention.

*For a PDF of the full article, click on the link to the left of this introduction.

Fiona Naumann, PhD

, Eric Martin, Martin Philpott, PhD, Cathie Smith, Masters, Diane Groff, PhD, Claudio Battaglini, PhD

Abstract

Background

Improved survivorship has led to increased recognition of the need to manage the side effects of cancer and its treatment. Exercise and psychological interventions benefit survivors; however, it is unknown if additional benefits can be gained by combining these two modalities.

Objective

Our purpose was to examine the feasibility of delivering an exercise and counseling intervention to 43 breast cancer survivors, to determine if counseling can add value to an exercise intervention for improving quality of life (QOL) in terms of physical and psychological function.

Methods

We compared exercise only (Ex), counseling only (C), exercise and counseling (ExC), and usual care (UsC) over an 8 week intervention.

Results

In all, 93% of participants completed the interventions, with no adverse effects documented. There were significant improvements in VO2max as well as upper body and lower body strength in the ExC and Ex groups compared to the C and UsC groups (P < .05). Significant improvements on the Beck Depression Inventory were observed in the ExC and Ex groups, compared with UsC (P < .04), with significant reduction in fatigue for the ExC group, compared with UsC, and no significant differences in QOL change between groups, although the ExC group had significant clinical improvement.

Limitations

Limitations included small subject number and study of only breast cancer survivors.

Conclusions

These preliminary results suggest that a combined exercise and psychological counseling program is both feasible and acceptable for breast cancer survivors and may improve QOL more than would a single-entity intervention.

*For a PDF of the full article, click on the link to the left of this introduction.

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Can Counseling Add Value to an Exercise Intervention for Improving Quality of Life in Breast Cancer Survivors? A Feasibility Study
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Avoidant Coping Style Scrambles Circadian Rhythms in Breast Cancer Patients

Even in the earliest days following a diagnosis of breast cancer, maladaptive coping styles are associated with a disruption in circadian rhythms – which are proven in metastatic disease to be a prognostic indicator of mortality.

The surprising finding, reported in the journal Annals of Behavioral Medicine (2012;44:10-20), holds potentially profound implications for the timing and tailoring of psychological interventions in newly diagnosed patients.

"Given that circadian cycles regulate tumor growth, we need greater understanding of possible psychosocial effects in cancer-related circadian disruption," concluded the study’s authors, led by Dr. Eric Dedert of Duke University Medical Center and the Veterans Affairs Medical Center in Durham, N.C.

The fact that circadian disruption was significant in a subset of patients a mean 19 days after diagnosis suggests that there may be no time to waste in identifying and treating potentially maladaptive coping responses that could impact not only their adjustment, but also their prognosis.

The study followed 57 women (mean age, 52 years) scheduled for breast cancer surgery, 54 of whom had just received a primary diagnosis and 3 who were facing surgery for recurrent disease. Psychological coping was measured in these patients, along with salivary cortisol and rest/activity circadian rhythms for 4 days.

Those with intrusive thoughts related to their diagnosis and avoidant coping styles (denial, self-distraction, and behavioral disengagement) were statistically more likely to demonstrate uneven rest/activity circadian rhythms and daytime sedentariness.

"In this newly diagnosed sample, intrusion-related inactivity during the daytime might be an indication that patients were seeking emotional numbness by disengaging from their environments and remaining sedentary," the authors noted.

"As indicated in the avoidance literature, this disengagement has the paradoxical effect of increasing distress."

The study has limitations, of course: a small sample size, a cross-sectional design, and the possibility that patients inclined to enroll might represent a biased sample in terms of coping styles. Of note, however, was the authors’ anecdotal report that some who refused to participate appeared to be "feeling overwhelmed with diagnosis and surgery planning," suggesting that the study may have underestimated the early impact of coping style on circadian rhythms.

The authors offered a comprehensive overview of a growing literature documenting intriguing (and ominous) associations among circadian rhythm disruption and physical, emotional, and social functioning in cancer patients, as well as tumor progression and mortality.

It’s a complex web that obviously needs much more elaboration before cause-and-effect conclusions might be drawn, but for now, the findings in early breast cancer patients certainly warrant paying close attention to coping from Day 1.

The study was funded by the University of Louisville (Ky.) Intramural Research Incentive Grant for Research on Women. The investigators reported no conflicts of interest.

Dr. Freed is a psychologist in Santa Barbara, Calif., and a medical journalist.

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Avoidant Coping Style Scrambles Circadian Rhythms in Breast Cancer Patients
Avoidant Coping Style Scrambles Circadian Rhythms in Breast Cancer Patients

Even in the earliest days following a diagnosis of breast cancer, maladaptive coping styles are associated with a disruption in circadian rhythms – which are proven in metastatic disease to be a prognostic indicator of mortality.

The surprising finding, reported in the journal Annals of Behavioral Medicine (2012;44:10-20), holds potentially profound implications for the timing and tailoring of psychological interventions in newly diagnosed patients.

"Given that circadian cycles regulate tumor growth, we need greater understanding of possible psychosocial effects in cancer-related circadian disruption," concluded the study’s authors, led by Dr. Eric Dedert of Duke University Medical Center and the Veterans Affairs Medical Center in Durham, N.C.

The fact that circadian disruption was significant in a subset of patients a mean 19 days after diagnosis suggests that there may be no time to waste in identifying and treating potentially maladaptive coping responses that could impact not only their adjustment, but also their prognosis.

The study followed 57 women (mean age, 52 years) scheduled for breast cancer surgery, 54 of whom had just received a primary diagnosis and 3 who were facing surgery for recurrent disease. Psychological coping was measured in these patients, along with salivary cortisol and rest/activity circadian rhythms for 4 days.

Those with intrusive thoughts related to their diagnosis and avoidant coping styles (denial, self-distraction, and behavioral disengagement) were statistically more likely to demonstrate uneven rest/activity circadian rhythms and daytime sedentariness.

"In this newly diagnosed sample, intrusion-related inactivity during the daytime might be an indication that patients were seeking emotional numbness by disengaging from their environments and remaining sedentary," the authors noted.

"As indicated in the avoidance literature, this disengagement has the paradoxical effect of increasing distress."

The study has limitations, of course: a small sample size, a cross-sectional design, and the possibility that patients inclined to enroll might represent a biased sample in terms of coping styles. Of note, however, was the authors’ anecdotal report that some who refused to participate appeared to be "feeling overwhelmed with diagnosis and surgery planning," suggesting that the study may have underestimated the early impact of coping style on circadian rhythms.

The authors offered a comprehensive overview of a growing literature documenting intriguing (and ominous) associations among circadian rhythm disruption and physical, emotional, and social functioning in cancer patients, as well as tumor progression and mortality.

It’s a complex web that obviously needs much more elaboration before cause-and-effect conclusions might be drawn, but for now, the findings in early breast cancer patients certainly warrant paying close attention to coping from Day 1.

The study was funded by the University of Louisville (Ky.) Intramural Research Incentive Grant for Research on Women. The investigators reported no conflicts of interest.

Dr. Freed is a psychologist in Santa Barbara, Calif., and a medical journalist.

Even in the earliest days following a diagnosis of breast cancer, maladaptive coping styles are associated with a disruption in circadian rhythms – which are proven in metastatic disease to be a prognostic indicator of mortality.

The surprising finding, reported in the journal Annals of Behavioral Medicine (2012;44:10-20), holds potentially profound implications for the timing and tailoring of psychological interventions in newly diagnosed patients.

"Given that circadian cycles regulate tumor growth, we need greater understanding of possible psychosocial effects in cancer-related circadian disruption," concluded the study’s authors, led by Dr. Eric Dedert of Duke University Medical Center and the Veterans Affairs Medical Center in Durham, N.C.

The fact that circadian disruption was significant in a subset of patients a mean 19 days after diagnosis suggests that there may be no time to waste in identifying and treating potentially maladaptive coping responses that could impact not only their adjustment, but also their prognosis.

The study followed 57 women (mean age, 52 years) scheduled for breast cancer surgery, 54 of whom had just received a primary diagnosis and 3 who were facing surgery for recurrent disease. Psychological coping was measured in these patients, along with salivary cortisol and rest/activity circadian rhythms for 4 days.

Those with intrusive thoughts related to their diagnosis and avoidant coping styles (denial, self-distraction, and behavioral disengagement) were statistically more likely to demonstrate uneven rest/activity circadian rhythms and daytime sedentariness.

"In this newly diagnosed sample, intrusion-related inactivity during the daytime might be an indication that patients were seeking emotional numbness by disengaging from their environments and remaining sedentary," the authors noted.

"As indicated in the avoidance literature, this disengagement has the paradoxical effect of increasing distress."

The study has limitations, of course: a small sample size, a cross-sectional design, and the possibility that patients inclined to enroll might represent a biased sample in terms of coping styles. Of note, however, was the authors’ anecdotal report that some who refused to participate appeared to be "feeling overwhelmed with diagnosis and surgery planning," suggesting that the study may have underestimated the early impact of coping style on circadian rhythms.

The authors offered a comprehensive overview of a growing literature documenting intriguing (and ominous) associations among circadian rhythm disruption and physical, emotional, and social functioning in cancer patients, as well as tumor progression and mortality.

It’s a complex web that obviously needs much more elaboration before cause-and-effect conclusions might be drawn, but for now, the findings in early breast cancer patients certainly warrant paying close attention to coping from Day 1.

The study was funded by the University of Louisville (Ky.) Intramural Research Incentive Grant for Research on Women. The investigators reported no conflicts of interest.

Dr. Freed is a psychologist in Santa Barbara, Calif., and a medical journalist.

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Evidence Mounts on Heart Failure After Trastuzumab in Breast Cancer Survivors

No Indication of a Plateau
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Evidence Mounts on Heart Failure After Trastuzumab in Breast Cancer Survivors

Trastuzumab, whether given with or without anthracyline-based chemotherapy, was associated with significant increases in heart failure and cardiomyopathy in a large population-based, retrospective cohort study of women treated for breast cancer.

In the "real world" study, which used data from the health maintenance organization Cancer Research Network, the adjusted risk of heart failure (HF) and/or cardiomyopathy increased fourfold among women who received trastuzumab (Herceptin) alone and sevenfold in those who received anthracycline plus trastuzumab, compared with women who received no chemotherapy.

In all, the risk of anthracycline-associated HF/cardiomyopathy among women younger than 65 years was similar to results from randomized clinical trials, while the trastuzumab-associated HF/cardiomyopathy risk – whether administered alone or following an anthracycline – was greater than that previously reported.

"Our results highlight the importance of generalizability in applying clinical trial findings to community settings; although similar to clinical trial results, these population-based results cannot be attributed to any single patient in clinical practice," wrote Erin J. Aiello Bowles of Group Health Research Institute, Seattle, and her associates.

Randomized trials have typically excluded older women and those with major comorbidities, and therefore the association between the two agents and HF/cardiomyopathy in this population is not well understood, Ms. Bowles and her associates noted (J. Natl. Cancer Inst. 2012 Aug. 30 [doi:10.1093/jnci/djs317]).

The current study population comprised 12,500 women diagnosed with incident, invasive breast cancer from Jan. 1, 1999, through Dec. 31, 2007, at eight integrated Cancer Research Network health systems. Women diagnosed with HF/cardiomyopathy prior to breast cancer diagnosis or initiation of chemotherapy were excluded. They had a mean age of 60 years (range, 22-99), and 85.8% were white.

In a median follow-up of 4.4 years, nearly half (46.5%) had received no chemotherapy. Just under a third, 29.6%, had received anthracycline-based chemotherapy alone, 0.9% received trastuzumab-based therapy without anthracycline, 3.5% received anthracycline plus trastuzumab, and 19.5% received other chemotherapy.

Compared with the women who received other chemotherapy or no chemotherapy, the women who received anthracycline alone or anthracycline plus trastuzumab were younger, diagnosed at later stages, had fewer comorbidities, and were slightly more likely to receive radiation therapy. These findings "suggest substantial individualization of adjuvant chemotherapy administration by age and comorbidity in community practice," Ms. Bowles and her associates wrote.

The incidence of HF/cardiomyopathy increased with increasing follow-up time for all of the chemotherapy types, but to a greater degree with trastuzumab. The cumulative HF/cardiomyopathy incidence increased from 1.2% at year 1 to 4.3% at year 5 for the anthracycline recipients, which was similar to the increase from 1.3% to 4.5% for those on other chemotherapies. For those with no chemotherapy, the cumulative incidence rose from 0.9% to 3.1%.

In contrast, the cumulative HF/cardiomyopathy incidence among recipients of anthracycline plus trastuzumab was 6.2% after 1 year of follow-up and continued to increase to 20.1% by 5 years.

Compared with no chemotherapy, the risk of incident HF/cardiomyopathy among all women was statistically significantly increased for anthracycline alone (adjusted hazard ratio, 1.40), trastuzumab without anthracycline (HR, 4.12), anthracycline plus trastuzumab (HR, 7.19), and other chemotherapy (HR, 1.49), the investigators said.

The 5-year cumulative incidence for HF/cardiomyopathy associated with each of the chemotherapies was greater in the older age groups, but the hazard ratios for HF/cardiomyopathy associated with chemotherapy use decreased with increasing age. For example, the hazard ratio for HF/cardiomyopathy associated with anthracycline use alone was statistically significant among women younger than 55 years (HR, 2.52) but not among women 55-64 years (HR, 1.61) or older.

According to Ms. Bowles and her associates, this study demonstrates the importance of observational comparative safety and effectiveness studies in providing complementary data to those obtained in clinical trials. "Observational studies allow for estimation of risks and benefits in community practice, which includes patients who may not be eligible for clinical trials. Clinical trials may provide more relevant estimates for patients who are eligible candidates, but many people are not and still receive these treatments in community practice," they wrote.

This work was supported by the National Cancer Institute through an administrative supplement to the Cancer Research Network. Ms. Bowles did not report any financial disclosures, but one of her coauthors, Dr. Larry A. Allen, has received consulting fees from Amgen, Janssen Scientific Affairs, and the Robert Wood Johnson Foundation.

Body

The development of trastuzumab for the treatment of nonmetastatic invasive breast cancer tumors expressing human epidermal growth factor receptor 2 has been an important step in the field of personalized medicine.

Multiple trials have documented clinically and statistically significant improvements in overall and disease-free survival for women receiving adjuvant treatment including trastuzumab, compared with those receiving other chemotherapy agents. Unlike most new cancer chemotherapies, trastuzumab’s use in early-stage HER2-positive breast cancer also appears to be cost effective (Ann. Pharmacother. 2009;43:296-303).

This benefit, however, has been offset by safety concerns, with a pooled analysis of the early breast cancer trials suggesting a fivefold increase in risk of congestive heart failure for women who receive trastuzumab versus those who do not, with consistent results across varying treatment regimens (Cochrane Database Syst. Rev. 2012;4:CD006243).

The current study adds an additional year of follow-up to previous trials, during which the incidence of congestive heart failure continues to increase with no indication of a plateau. This justifies long-term surveillance for congestive heart failure in women who have received trastuzumab, as well as extended follow-up of women enrolled in trials.

Although most previous randomized clinical trials have included anthracycline in both treatment and comparison arms, the current observational study found that, in real life, about 40% of women undergoing chemotherapy received regimens excluding anthracycline, probably due in part to the older age and higher comorbidity burden relative to participants in clinical trials.

Finally, this study raises concern in that roughly a quarter of the women who received adjuvant trastuzumab had been treated well before the publication of peer-reviewed results of relevant randomized controlled trials. Clinicians may have been basing their decision on findings from trials in women with metastatic breast cancer and preliminary data from the early breast cancer trials. The interim findings, however, were based on follow-up periods too short to account for the longer life expectancy of women with early breast cancer relative to women with metastatic disease.

There have been many instances in which new treatments disseminate based on preliminary reports of benefit, only to be withdrawn after additional safety data become available. Patients, clinicians, and researchers must temper their enthusiasm about the benefits of new cancer therapies with the recognition that estimates of the long-term risk of adverse events are based on short-term observations among carefully selected clinical trial participants.

Ann M. Geiger, Ph.D., is with the division of public health sciences at Wake Forest University, Winston Salem, N.C. She said that she has no conflicts of interest.

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Body

The development of trastuzumab for the treatment of nonmetastatic invasive breast cancer tumors expressing human epidermal growth factor receptor 2 has been an important step in the field of personalized medicine.

Multiple trials have documented clinically and statistically significant improvements in overall and disease-free survival for women receiving adjuvant treatment including trastuzumab, compared with those receiving other chemotherapy agents. Unlike most new cancer chemotherapies, trastuzumab’s use in early-stage HER2-positive breast cancer also appears to be cost effective (Ann. Pharmacother. 2009;43:296-303).

This benefit, however, has been offset by safety concerns, with a pooled analysis of the early breast cancer trials suggesting a fivefold increase in risk of congestive heart failure for women who receive trastuzumab versus those who do not, with consistent results across varying treatment regimens (Cochrane Database Syst. Rev. 2012;4:CD006243).

The current study adds an additional year of follow-up to previous trials, during which the incidence of congestive heart failure continues to increase with no indication of a plateau. This justifies long-term surveillance for congestive heart failure in women who have received trastuzumab, as well as extended follow-up of women enrolled in trials.

Although most previous randomized clinical trials have included anthracycline in both treatment and comparison arms, the current observational study found that, in real life, about 40% of women undergoing chemotherapy received regimens excluding anthracycline, probably due in part to the older age and higher comorbidity burden relative to participants in clinical trials.

Finally, this study raises concern in that roughly a quarter of the women who received adjuvant trastuzumab had been treated well before the publication of peer-reviewed results of relevant randomized controlled trials. Clinicians may have been basing their decision on findings from trials in women with metastatic breast cancer and preliminary data from the early breast cancer trials. The interim findings, however, were based on follow-up periods too short to account for the longer life expectancy of women with early breast cancer relative to women with metastatic disease.

There have been many instances in which new treatments disseminate based on preliminary reports of benefit, only to be withdrawn after additional safety data become available. Patients, clinicians, and researchers must temper their enthusiasm about the benefits of new cancer therapies with the recognition that estimates of the long-term risk of adverse events are based on short-term observations among carefully selected clinical trial participants.

Ann M. Geiger, Ph.D., is with the division of public health sciences at Wake Forest University, Winston Salem, N.C. She said that she has no conflicts of interest.

Body

The development of trastuzumab for the treatment of nonmetastatic invasive breast cancer tumors expressing human epidermal growth factor receptor 2 has been an important step in the field of personalized medicine.

Multiple trials have documented clinically and statistically significant improvements in overall and disease-free survival for women receiving adjuvant treatment including trastuzumab, compared with those receiving other chemotherapy agents. Unlike most new cancer chemotherapies, trastuzumab’s use in early-stage HER2-positive breast cancer also appears to be cost effective (Ann. Pharmacother. 2009;43:296-303).

This benefit, however, has been offset by safety concerns, with a pooled analysis of the early breast cancer trials suggesting a fivefold increase in risk of congestive heart failure for women who receive trastuzumab versus those who do not, with consistent results across varying treatment regimens (Cochrane Database Syst. Rev. 2012;4:CD006243).

The current study adds an additional year of follow-up to previous trials, during which the incidence of congestive heart failure continues to increase with no indication of a plateau. This justifies long-term surveillance for congestive heart failure in women who have received trastuzumab, as well as extended follow-up of women enrolled in trials.

Although most previous randomized clinical trials have included anthracycline in both treatment and comparison arms, the current observational study found that, in real life, about 40% of women undergoing chemotherapy received regimens excluding anthracycline, probably due in part to the older age and higher comorbidity burden relative to participants in clinical trials.

Finally, this study raises concern in that roughly a quarter of the women who received adjuvant trastuzumab had been treated well before the publication of peer-reviewed results of relevant randomized controlled trials. Clinicians may have been basing their decision on findings from trials in women with metastatic breast cancer and preliminary data from the early breast cancer trials. The interim findings, however, were based on follow-up periods too short to account for the longer life expectancy of women with early breast cancer relative to women with metastatic disease.

There have been many instances in which new treatments disseminate based on preliminary reports of benefit, only to be withdrawn after additional safety data become available. Patients, clinicians, and researchers must temper their enthusiasm about the benefits of new cancer therapies with the recognition that estimates of the long-term risk of adverse events are based on short-term observations among carefully selected clinical trial participants.

Ann M. Geiger, Ph.D., is with the division of public health sciences at Wake Forest University, Winston Salem, N.C. She said that she has no conflicts of interest.

Title
No Indication of a Plateau
No Indication of a Plateau

Trastuzumab, whether given with or without anthracyline-based chemotherapy, was associated with significant increases in heart failure and cardiomyopathy in a large population-based, retrospective cohort study of women treated for breast cancer.

In the "real world" study, which used data from the health maintenance organization Cancer Research Network, the adjusted risk of heart failure (HF) and/or cardiomyopathy increased fourfold among women who received trastuzumab (Herceptin) alone and sevenfold in those who received anthracycline plus trastuzumab, compared with women who received no chemotherapy.

In all, the risk of anthracycline-associated HF/cardiomyopathy among women younger than 65 years was similar to results from randomized clinical trials, while the trastuzumab-associated HF/cardiomyopathy risk – whether administered alone or following an anthracycline – was greater than that previously reported.

"Our results highlight the importance of generalizability in applying clinical trial findings to community settings; although similar to clinical trial results, these population-based results cannot be attributed to any single patient in clinical practice," wrote Erin J. Aiello Bowles of Group Health Research Institute, Seattle, and her associates.

Randomized trials have typically excluded older women and those with major comorbidities, and therefore the association between the two agents and HF/cardiomyopathy in this population is not well understood, Ms. Bowles and her associates noted (J. Natl. Cancer Inst. 2012 Aug. 30 [doi:10.1093/jnci/djs317]).

The current study population comprised 12,500 women diagnosed with incident, invasive breast cancer from Jan. 1, 1999, through Dec. 31, 2007, at eight integrated Cancer Research Network health systems. Women diagnosed with HF/cardiomyopathy prior to breast cancer diagnosis or initiation of chemotherapy were excluded. They had a mean age of 60 years (range, 22-99), and 85.8% were white.

In a median follow-up of 4.4 years, nearly half (46.5%) had received no chemotherapy. Just under a third, 29.6%, had received anthracycline-based chemotherapy alone, 0.9% received trastuzumab-based therapy without anthracycline, 3.5% received anthracycline plus trastuzumab, and 19.5% received other chemotherapy.

Compared with the women who received other chemotherapy or no chemotherapy, the women who received anthracycline alone or anthracycline plus trastuzumab were younger, diagnosed at later stages, had fewer comorbidities, and were slightly more likely to receive radiation therapy. These findings "suggest substantial individualization of adjuvant chemotherapy administration by age and comorbidity in community practice," Ms. Bowles and her associates wrote.

The incidence of HF/cardiomyopathy increased with increasing follow-up time for all of the chemotherapy types, but to a greater degree with trastuzumab. The cumulative HF/cardiomyopathy incidence increased from 1.2% at year 1 to 4.3% at year 5 for the anthracycline recipients, which was similar to the increase from 1.3% to 4.5% for those on other chemotherapies. For those with no chemotherapy, the cumulative incidence rose from 0.9% to 3.1%.

In contrast, the cumulative HF/cardiomyopathy incidence among recipients of anthracycline plus trastuzumab was 6.2% after 1 year of follow-up and continued to increase to 20.1% by 5 years.

Compared with no chemotherapy, the risk of incident HF/cardiomyopathy among all women was statistically significantly increased for anthracycline alone (adjusted hazard ratio, 1.40), trastuzumab without anthracycline (HR, 4.12), anthracycline plus trastuzumab (HR, 7.19), and other chemotherapy (HR, 1.49), the investigators said.

The 5-year cumulative incidence for HF/cardiomyopathy associated with each of the chemotherapies was greater in the older age groups, but the hazard ratios for HF/cardiomyopathy associated with chemotherapy use decreased with increasing age. For example, the hazard ratio for HF/cardiomyopathy associated with anthracycline use alone was statistically significant among women younger than 55 years (HR, 2.52) but not among women 55-64 years (HR, 1.61) or older.

According to Ms. Bowles and her associates, this study demonstrates the importance of observational comparative safety and effectiveness studies in providing complementary data to those obtained in clinical trials. "Observational studies allow for estimation of risks and benefits in community practice, which includes patients who may not be eligible for clinical trials. Clinical trials may provide more relevant estimates for patients who are eligible candidates, but many people are not and still receive these treatments in community practice," they wrote.

This work was supported by the National Cancer Institute through an administrative supplement to the Cancer Research Network. Ms. Bowles did not report any financial disclosures, but one of her coauthors, Dr. Larry A. Allen, has received consulting fees from Amgen, Janssen Scientific Affairs, and the Robert Wood Johnson Foundation.

Trastuzumab, whether given with or without anthracyline-based chemotherapy, was associated with significant increases in heart failure and cardiomyopathy in a large population-based, retrospective cohort study of women treated for breast cancer.

In the "real world" study, which used data from the health maintenance organization Cancer Research Network, the adjusted risk of heart failure (HF) and/or cardiomyopathy increased fourfold among women who received trastuzumab (Herceptin) alone and sevenfold in those who received anthracycline plus trastuzumab, compared with women who received no chemotherapy.

In all, the risk of anthracycline-associated HF/cardiomyopathy among women younger than 65 years was similar to results from randomized clinical trials, while the trastuzumab-associated HF/cardiomyopathy risk – whether administered alone or following an anthracycline – was greater than that previously reported.

"Our results highlight the importance of generalizability in applying clinical trial findings to community settings; although similar to clinical trial results, these population-based results cannot be attributed to any single patient in clinical practice," wrote Erin J. Aiello Bowles of Group Health Research Institute, Seattle, and her associates.

Randomized trials have typically excluded older women and those with major comorbidities, and therefore the association between the two agents and HF/cardiomyopathy in this population is not well understood, Ms. Bowles and her associates noted (J. Natl. Cancer Inst. 2012 Aug. 30 [doi:10.1093/jnci/djs317]).

The current study population comprised 12,500 women diagnosed with incident, invasive breast cancer from Jan. 1, 1999, through Dec. 31, 2007, at eight integrated Cancer Research Network health systems. Women diagnosed with HF/cardiomyopathy prior to breast cancer diagnosis or initiation of chemotherapy were excluded. They had a mean age of 60 years (range, 22-99), and 85.8% were white.

In a median follow-up of 4.4 years, nearly half (46.5%) had received no chemotherapy. Just under a third, 29.6%, had received anthracycline-based chemotherapy alone, 0.9% received trastuzumab-based therapy without anthracycline, 3.5% received anthracycline plus trastuzumab, and 19.5% received other chemotherapy.

Compared with the women who received other chemotherapy or no chemotherapy, the women who received anthracycline alone or anthracycline plus trastuzumab were younger, diagnosed at later stages, had fewer comorbidities, and were slightly more likely to receive radiation therapy. These findings "suggest substantial individualization of adjuvant chemotherapy administration by age and comorbidity in community practice," Ms. Bowles and her associates wrote.

The incidence of HF/cardiomyopathy increased with increasing follow-up time for all of the chemotherapy types, but to a greater degree with trastuzumab. The cumulative HF/cardiomyopathy incidence increased from 1.2% at year 1 to 4.3% at year 5 for the anthracycline recipients, which was similar to the increase from 1.3% to 4.5% for those on other chemotherapies. For those with no chemotherapy, the cumulative incidence rose from 0.9% to 3.1%.

In contrast, the cumulative HF/cardiomyopathy incidence among recipients of anthracycline plus trastuzumab was 6.2% after 1 year of follow-up and continued to increase to 20.1% by 5 years.

Compared with no chemotherapy, the risk of incident HF/cardiomyopathy among all women was statistically significantly increased for anthracycline alone (adjusted hazard ratio, 1.40), trastuzumab without anthracycline (HR, 4.12), anthracycline plus trastuzumab (HR, 7.19), and other chemotherapy (HR, 1.49), the investigators said.

The 5-year cumulative incidence for HF/cardiomyopathy associated with each of the chemotherapies was greater in the older age groups, but the hazard ratios for HF/cardiomyopathy associated with chemotherapy use decreased with increasing age. For example, the hazard ratio for HF/cardiomyopathy associated with anthracycline use alone was statistically significant among women younger than 55 years (HR, 2.52) but not among women 55-64 years (HR, 1.61) or older.

According to Ms. Bowles and her associates, this study demonstrates the importance of observational comparative safety and effectiveness studies in providing complementary data to those obtained in clinical trials. "Observational studies allow for estimation of risks and benefits in community practice, which includes patients who may not be eligible for clinical trials. Clinical trials may provide more relevant estimates for patients who are eligible candidates, but many people are not and still receive these treatments in community practice," they wrote.

This work was supported by the National Cancer Institute through an administrative supplement to the Cancer Research Network. Ms. Bowles did not report any financial disclosures, but one of her coauthors, Dr. Larry A. Allen, has received consulting fees from Amgen, Janssen Scientific Affairs, and the Robert Wood Johnson Foundation.

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Evidence Mounts on Heart Failure After Trastuzumab in Breast Cancer Survivors
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Major Finding: The adjusted risk of heart failure (HF) and/or cardiomyopathy increased fourfold among women who received trastuzumab alone and sevenfold in those who received anthracycline plus trastuzumab, compared with women who received no chemotherapy.

Data Source: The "real world" study used data on 12,500 women from the health maintenance organization Cancer Research Network.

Disclosures: This work was supported by the National Cancer Institute through an administrative supplement to the Cancer Research Network. Ms. Bowles did not report any financial disclosures, but coauthor Dr. Larry A. Allen has received consulting fees from Amgen, Janssen Scientific Affairs, and the Robert Wood Johnson Foundation.

Genentech Resubmits T-DM1 to FDA

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Genentech Resubmits T-DM1 to FDA
EMILIA Trial Said to Show Overall Survival Benefit.

Two years after the Food and Drug Administration refused to review T-DM1 for accelerated approval, Roche/Genentech Inc. has resubmitted the application with a statistically significant overall survival advantage in hand – FDA’s gold standard for oncology approvals.

The company announced Aug. 27 that it had submitted a biologics license application (BLA) to the FDA for the antibody drug conjugate trastuzumab emtansine, a combination of the monoclonal antibody trastuzumab (Herceptin) with the potent cytotoxic agent DM1, connected by a stable linker based on technology licensed from ImmunoGen Inc.

Genentech expects to submit a marketing authorization application to the European Medicines Agency soon.

[Editor’s note: Genentech has clarified that the updated overall survival analysis was not included in the initial BLA resubmission. It will be provided to FDA during its review of the application.]

The company also announced further results from the EMILIA study, showing T-DM1 had a statistically significant overall survival benefit in HER2-positive metastatic breast cancer, compared with GlaxoSmithKline Inc.’s lapatinib (Tykerb) in combination with capecitabine (Xeloda). Roche did not release actual figures, which will be presented at an upcoming medical meeting.

Dr. Kimberly Blackwell

At the American Society for Clinical Oncology meeting in June, EMILIA authors showed a 3.2-month median progression-free survival benefit. Lead investigator Dr. Kimberly Blackwell, professor of medicine and assistant professor of radiation oncology at Duke Cancer Institute, Duke University, Durham, N.C., also said at the time there was a trend toward an overall survival improvement.

Analysts were not surprised at the news, given the progression-free survival advantage. J.P. Morgan said in an Aug. 27 note that its forecasts already expected a survival benefit in many treatment settings and that while markets reacted favorably to the news, ImmunoGen "already gets credit for this highly promising product."

Priority Review Expected

The positive data also should allow for a quick FDA approval. Priority review would mean action by late February 2013, but J.P. Morgan’s Cory Kasimov indicated that approval could come earlier. The FDA has approved several drugs ahead of the user fee deadline over the past year.

That would be a welcome change for T-DM1 after the FDA refused to file Genentech’s accelerated approval application for the product in 2010. Indeed, the company made the refuse-to-file announcement exactly 2 years before announcing the overall survival benefit – Aug. 27, 2010.

That application was based on the results of one single-arm phase II trial in 110 patients. Tumors shrank in one-third of women with advanced HER2-positive breast cancer, who had received on average seven prior medicines, but the FDA said the filing did not meet the standards for accelerated approval because the company had not exhausted all available treatment options for metastatic breast cancer in the study population.

Roche plans to launch T-DM1 next year as a second-line therapy, although physicians are expected to use it as a first-line therapy, company officials said during an analyst briefing at ASCO in June.

T-DM1 is expected to eventually replace trastuzumab as the standard of care and as the cornerstone of Roche’s breast cancer portfolio. An early 2013 approval will give Roche time to establish the product before the introduction of trastuzumab biosimilars, expected in Europe in 2014 and in the United States in 2019.

The company is already studying T-DM1 in combination with pertuzumab (Perjeta), which could potentially eliminate the need for chemotherapy. Pertuzumab was approved in June for use with trastuzumab and chemotherapy in previously untreated HER2-positive metastatic breast cancer that has recurred after adjuvant or neoadjuvant therapy.

Roche also is expected to be among the first to test a new accelerated approval draft guidance using pathologic complete response to support accelerated approval in neoadjuvant breast cancer. It announced plans for a study testing T-DM1 and pertuzumab just after the draft guidance was released.

The company will face concerns about pricing, especially with the combination of the two targeted agents. But at an ASCO briefing, Roche COO Pascal Soriot pointed out that there will be safety advantages. "There will be a lot of savings for the systems and we need to price that in how we price T-DM1," he said.

Editor’s note: This story appears courtesy of "The Pink Sheet," a weekly Elsevier publication covering pharmaceutical business and policy issues. To learn more, contract customer care at 800-332-2181 or sign up for a free trial.

* This story was updated on 8/28/12 per clarification from Genentech.

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Two years after the Food and Drug Administration refused to review T-DM1 for accelerated approval, Roche/Genentech Inc. has resubmitted the application with a statistically significant overall survival advantage in hand – FDA’s gold standard for oncology approvals.

The company announced Aug. 27 that it had submitted a biologics license application (BLA) to the FDA for the antibody drug conjugate trastuzumab emtansine, a combination of the monoclonal antibody trastuzumab (Herceptin) with the potent cytotoxic agent DM1, connected by a stable linker based on technology licensed from ImmunoGen Inc.

Genentech expects to submit a marketing authorization application to the European Medicines Agency soon.

[Editor’s note: Genentech has clarified that the updated overall survival analysis was not included in the initial BLA resubmission. It will be provided to FDA during its review of the application.]

The company also announced further results from the EMILIA study, showing T-DM1 had a statistically significant overall survival benefit in HER2-positive metastatic breast cancer, compared with GlaxoSmithKline Inc.’s lapatinib (Tykerb) in combination with capecitabine (Xeloda). Roche did not release actual figures, which will be presented at an upcoming medical meeting.

Dr. Kimberly Blackwell

At the American Society for Clinical Oncology meeting in June, EMILIA authors showed a 3.2-month median progression-free survival benefit. Lead investigator Dr. Kimberly Blackwell, professor of medicine and assistant professor of radiation oncology at Duke Cancer Institute, Duke University, Durham, N.C., also said at the time there was a trend toward an overall survival improvement.

Analysts were not surprised at the news, given the progression-free survival advantage. J.P. Morgan said in an Aug. 27 note that its forecasts already expected a survival benefit in many treatment settings and that while markets reacted favorably to the news, ImmunoGen "already gets credit for this highly promising product."

Priority Review Expected

The positive data also should allow for a quick FDA approval. Priority review would mean action by late February 2013, but J.P. Morgan’s Cory Kasimov indicated that approval could come earlier. The FDA has approved several drugs ahead of the user fee deadline over the past year.

That would be a welcome change for T-DM1 after the FDA refused to file Genentech’s accelerated approval application for the product in 2010. Indeed, the company made the refuse-to-file announcement exactly 2 years before announcing the overall survival benefit – Aug. 27, 2010.

That application was based on the results of one single-arm phase II trial in 110 patients. Tumors shrank in one-third of women with advanced HER2-positive breast cancer, who had received on average seven prior medicines, but the FDA said the filing did not meet the standards for accelerated approval because the company had not exhausted all available treatment options for metastatic breast cancer in the study population.

Roche plans to launch T-DM1 next year as a second-line therapy, although physicians are expected to use it as a first-line therapy, company officials said during an analyst briefing at ASCO in June.

T-DM1 is expected to eventually replace trastuzumab as the standard of care and as the cornerstone of Roche’s breast cancer portfolio. An early 2013 approval will give Roche time to establish the product before the introduction of trastuzumab biosimilars, expected in Europe in 2014 and in the United States in 2019.

The company is already studying T-DM1 in combination with pertuzumab (Perjeta), which could potentially eliminate the need for chemotherapy. Pertuzumab was approved in June for use with trastuzumab and chemotherapy in previously untreated HER2-positive metastatic breast cancer that has recurred after adjuvant or neoadjuvant therapy.

Roche also is expected to be among the first to test a new accelerated approval draft guidance using pathologic complete response to support accelerated approval in neoadjuvant breast cancer. It announced plans for a study testing T-DM1 and pertuzumab just after the draft guidance was released.

The company will face concerns about pricing, especially with the combination of the two targeted agents. But at an ASCO briefing, Roche COO Pascal Soriot pointed out that there will be safety advantages. "There will be a lot of savings for the systems and we need to price that in how we price T-DM1," he said.

Editor’s note: This story appears courtesy of "The Pink Sheet," a weekly Elsevier publication covering pharmaceutical business and policy issues. To learn more, contract customer care at 800-332-2181 or sign up for a free trial.

* This story was updated on 8/28/12 per clarification from Genentech.

Two years after the Food and Drug Administration refused to review T-DM1 for accelerated approval, Roche/Genentech Inc. has resubmitted the application with a statistically significant overall survival advantage in hand – FDA’s gold standard for oncology approvals.

The company announced Aug. 27 that it had submitted a biologics license application (BLA) to the FDA for the antibody drug conjugate trastuzumab emtansine, a combination of the monoclonal antibody trastuzumab (Herceptin) with the potent cytotoxic agent DM1, connected by a stable linker based on technology licensed from ImmunoGen Inc.

Genentech expects to submit a marketing authorization application to the European Medicines Agency soon.

[Editor’s note: Genentech has clarified that the updated overall survival analysis was not included in the initial BLA resubmission. It will be provided to FDA during its review of the application.]

The company also announced further results from the EMILIA study, showing T-DM1 had a statistically significant overall survival benefit in HER2-positive metastatic breast cancer, compared with GlaxoSmithKline Inc.’s lapatinib (Tykerb) in combination with capecitabine (Xeloda). Roche did not release actual figures, which will be presented at an upcoming medical meeting.

Dr. Kimberly Blackwell

At the American Society for Clinical Oncology meeting in June, EMILIA authors showed a 3.2-month median progression-free survival benefit. Lead investigator Dr. Kimberly Blackwell, professor of medicine and assistant professor of radiation oncology at Duke Cancer Institute, Duke University, Durham, N.C., also said at the time there was a trend toward an overall survival improvement.

Analysts were not surprised at the news, given the progression-free survival advantage. J.P. Morgan said in an Aug. 27 note that its forecasts already expected a survival benefit in many treatment settings and that while markets reacted favorably to the news, ImmunoGen "already gets credit for this highly promising product."

Priority Review Expected

The positive data also should allow for a quick FDA approval. Priority review would mean action by late February 2013, but J.P. Morgan’s Cory Kasimov indicated that approval could come earlier. The FDA has approved several drugs ahead of the user fee deadline over the past year.

That would be a welcome change for T-DM1 after the FDA refused to file Genentech’s accelerated approval application for the product in 2010. Indeed, the company made the refuse-to-file announcement exactly 2 years before announcing the overall survival benefit – Aug. 27, 2010.

That application was based on the results of one single-arm phase II trial in 110 patients. Tumors shrank in one-third of women with advanced HER2-positive breast cancer, who had received on average seven prior medicines, but the FDA said the filing did not meet the standards for accelerated approval because the company had not exhausted all available treatment options for metastatic breast cancer in the study population.

Roche plans to launch T-DM1 next year as a second-line therapy, although physicians are expected to use it as a first-line therapy, company officials said during an analyst briefing at ASCO in June.

T-DM1 is expected to eventually replace trastuzumab as the standard of care and as the cornerstone of Roche’s breast cancer portfolio. An early 2013 approval will give Roche time to establish the product before the introduction of trastuzumab biosimilars, expected in Europe in 2014 and in the United States in 2019.

The company is already studying T-DM1 in combination with pertuzumab (Perjeta), which could potentially eliminate the need for chemotherapy. Pertuzumab was approved in June for use with trastuzumab and chemotherapy in previously untreated HER2-positive metastatic breast cancer that has recurred after adjuvant or neoadjuvant therapy.

Roche also is expected to be among the first to test a new accelerated approval draft guidance using pathologic complete response to support accelerated approval in neoadjuvant breast cancer. It announced plans for a study testing T-DM1 and pertuzumab just after the draft guidance was released.

The company will face concerns about pricing, especially with the combination of the two targeted agents. But at an ASCO briefing, Roche COO Pascal Soriot pointed out that there will be safety advantages. "There will be a lot of savings for the systems and we need to price that in how we price T-DM1," he said.

Editor’s note: This story appears courtesy of "The Pink Sheet," a weekly Elsevier publication covering pharmaceutical business and policy issues. To learn more, contract customer care at 800-332-2181 or sign up for a free trial.

* This story was updated on 8/28/12 per clarification from Genentech.

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Acetyl-l-Carnitine Yields Mixed Results for Chemo-Induced Neuropathy

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Serious neuropathy worsened in U.S. trial; symptoms improved in China.

CHICAGO – The impact of acetyl-l-carnitine on chemotherapy-induced peripheral neuropathy may depend largely on the clinical context and patient population, a pair of phase III trials suggests.

Acetyl-l-carnitine (ALC), a natural substance marketed over the counter as a dietary supplement, is popular among cancer patients as a result of preclinical and early-phase data in chemotherapy-related neuropathy and also a study in patients with diabetes-related peripheral neuropathy.

But in a trial among 409 U.S. women receiving adjuvant chemotherapy for breast cancer, those who took ALC not only had no decrease in the development of peripheral neuropathy symptoms relative to peers who were given a placebo, but actually had an increase. And they had a higher rate of serious neuropathy, too.

In contrast, in a trial among more than 200 Chinese patients with various cancers who had peripheral neuropathy from previous chemotherapy, those who took ALC were more likely than those who took a placebo to have an improvement of at least one grade in their neuropathy. They also were more likely to have improvements in fatigue and strength.

Taken together, the two trials, which were reported in a poster discussion session at the annual meeting of the American Society of Clinical Oncology, provide yet another cautionary lesson on the complexity of combining conventional and complementary therapies.

"The use of ALC for prevention is not recommended, and I would say, based on [these results], should be cautioned against. It will be interesting to see the carnitine data and to understand, as much as possible, why the trial was negative," commented Debra L. Barton, Ph.D., of the Mayo Clinic in Rochester, Minn., who was invited to discuss the research. "Further studies are needed to really understand if ALC should be used to treat peripheral neuropathy."

ALC for Prevention of Peripheral Neuropathy

Dr. Dawn L. Hershman

In the first trial, Southwest Oncology Group (SWOG) protocol S0715, investigators led by Dr. Dawn L. Hershman randomized women receiving adjuvant taxane chemotherapy for early breast cancer evenly to either oral ALC 1,000 mg three times daily or matching placebo, for 24 weeks.

Compared with their counterparts in the placebo group, women in the ALC group were more likely to have a greater than 5-point adjusted decrease on the neurotoxicity subscale of the Functional Assessment of Cancer Therapy–Taxane (FACT-NTX) instrument at 12 weeks (odds ratio, 1.48; P = .08) and also at 24 weeks (38% vs. 28%; OR, 1.57; P = .05).

This magnitude of worsening is clinically meaningful, maintained Dr. Hershman of Columbia University in New York, "so this is not like a lot of studies where you find a statistically significant difference that’s not clinically meaningful."

In addition, the incidence of grade 3/4 neurotoxicity was 3.8% with ALC, much higher than the 0.5% seen with placebo.

Patients in the ALC group also had scores on the FACT trial outcome index subscale (FACT-TOI), an overall measure of function, that were on average 3.5 points lower (worse) than those among their placebo counterparts (P = .03). There were no significant differences between groups in terms of fatigue and other toxicities.

The investigators have collected biosamples and will be assessing potential biological correlates with peripheral neuropathy outcomes, according to Dr. Hershman.

"We are looking at DNA, oxidative stress, and carnitine levels to better understand the mechanisms of chemotherapy-induced peripheral neuropathy to begin with, because there is not a whole lot known in terms of mechanism," she said. "If we can figure out what makes people worse, then we will maybe be able to figure out how to make people better from a more mechanistic standpoint, because there are very few drugs to treat chemotherapy-induced peripheral neuropathy."

An obvious concern from the trial’s findings is that ALC may somehow potentiate the neurotoxic effects of taxanes. "Based on these data, physicians should be telling patients not to take ALC during adjuvant chemotherapy," Dr. Hershman concluded. "You need to talk to patients. We know from the literature that overwhelmingly large number of patients take supplements during chemotherapy and afterward, many of which have not been tested. It’s important to get that history from patients."

Dr. Barton, the discussant, praised the trial’s rigorous methodology and proposed that there may have been several reasons for the lack of ALC benefit in preventing neuropathy, despite compelling earlier data.

Previous prevention research was done in animals and thus may not translate to humans, she said. And a positive trial for treatment in humans used intravenous administration, which may result in different bioavailability. Finally, "ALC capsules needed to be taken three times a day, and they are rather large, and these patients were, after all, on chemotherapy. They were likely nauseated [and] dyspeptic, and taking what some might call a horse pill three times a day could not have been an easy task. The study did use pill diaries, but we know those aren’t a perfect tool for adherence."

 

 

"The great thing is that the study collected blood and they are able to look at carnitine levels," Dr. Barton said. "So if carnitine is up in the group that got acetyl-carnitine and not in the group that got placebo, well, I think that pretty much confirms that this just didn’t work."

ALC for Treatment of Peripheral Neuropathy

In the second trial, protocol ZHAOKE-2007L03540, investigators led by Dr. Yuanjue Sun of the Sixth Affiliated Hospital of Shanghai (China) Jiao Tong University, enrolled 239 patients who had cancer of various types and stages, had completed chemotherapy, and had had at least grade 2 peripheral neuropathy for up to 6 months.

They were randomly assigned to receive either oral ALC at a dose of 3 g/day or matching placebo, for 8 weeks, with outcomes assessed at clinic visits or by telephone.

Analyses showed that compared with their counterparts in the placebo group, patients in the ALC group were more likely to have had an improvement of at least one grade in their neuropathy, both at 8 weeks (51% vs. 24%; P less than .001) and at 12 weeks (58% vs. 40%; P less than .001).

In terms of secondary outcomes, the ALC group was also more likely to have had an improvement in cancer-related fatigue (31% vs. 20%; P = .048), physical strength (29% vs. 13%; P = .02), and electrophysiology in peripheral nerves (75% vs. 58%; P = .02).

The two groups had statistically indistinguishable rates of adverse events (20% vs. 15%) and adverse reactions (6% vs. 5%). The most common events were gastrointestinal ones and skin allergies.

"This is the first time to confirm that ALC has a positive effect to cure chemotherapy-induced peripheral neuropathy in the Chinese population," Dr. Sun commented through a translator.

"I think the very important thing for this trial is, it is a different kind of patient population. Before this, most clinical trials were performed in [whites] or maybe Americans. This is an only-Asian [population]," he noted, and it is possible that there are genetic differences in how ALC is metabolized.

Dr. Barton, the discussant, took a cautionary view, saying that "there are some things to consider before going out and telling patients to consider acetyl-carnitine for their peripheral neuropathy."

It was unclear from the results reported whether the two treatment groups were well balanced and what criteria were used to define improvement for the secondary outcomes, she noted. Additionally, "outcome measures were all provider graded, [and there were] no self-report measures, so it is difficult to understand the impact of treatment on symptoms, particularly from the patient perspective," she noted.

Dr. Hershman, Dr. Sun, and Dr. Barton disclosed no relevant conflicts of interest; the ZHAOKE-2007L03540 trial was sponsored by Lee’s Pharmaceutical Limited.

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Serious neuropathy worsened in U.S. trial; symptoms improved in China.
Serious neuropathy worsened in U.S. trial; symptoms improved in China.

CHICAGO – The impact of acetyl-l-carnitine on chemotherapy-induced peripheral neuropathy may depend largely on the clinical context and patient population, a pair of phase III trials suggests.

Acetyl-l-carnitine (ALC), a natural substance marketed over the counter as a dietary supplement, is popular among cancer patients as a result of preclinical and early-phase data in chemotherapy-related neuropathy and also a study in patients with diabetes-related peripheral neuropathy.

But in a trial among 409 U.S. women receiving adjuvant chemotherapy for breast cancer, those who took ALC not only had no decrease in the development of peripheral neuropathy symptoms relative to peers who were given a placebo, but actually had an increase. And they had a higher rate of serious neuropathy, too.

In contrast, in a trial among more than 200 Chinese patients with various cancers who had peripheral neuropathy from previous chemotherapy, those who took ALC were more likely than those who took a placebo to have an improvement of at least one grade in their neuropathy. They also were more likely to have improvements in fatigue and strength.

Taken together, the two trials, which were reported in a poster discussion session at the annual meeting of the American Society of Clinical Oncology, provide yet another cautionary lesson on the complexity of combining conventional and complementary therapies.

"The use of ALC for prevention is not recommended, and I would say, based on [these results], should be cautioned against. It will be interesting to see the carnitine data and to understand, as much as possible, why the trial was negative," commented Debra L. Barton, Ph.D., of the Mayo Clinic in Rochester, Minn., who was invited to discuss the research. "Further studies are needed to really understand if ALC should be used to treat peripheral neuropathy."

ALC for Prevention of Peripheral Neuropathy

Dr. Dawn L. Hershman

In the first trial, Southwest Oncology Group (SWOG) protocol S0715, investigators led by Dr. Dawn L. Hershman randomized women receiving adjuvant taxane chemotherapy for early breast cancer evenly to either oral ALC 1,000 mg three times daily or matching placebo, for 24 weeks.

Compared with their counterparts in the placebo group, women in the ALC group were more likely to have a greater than 5-point adjusted decrease on the neurotoxicity subscale of the Functional Assessment of Cancer Therapy–Taxane (FACT-NTX) instrument at 12 weeks (odds ratio, 1.48; P = .08) and also at 24 weeks (38% vs. 28%; OR, 1.57; P = .05).

This magnitude of worsening is clinically meaningful, maintained Dr. Hershman of Columbia University in New York, "so this is not like a lot of studies where you find a statistically significant difference that’s not clinically meaningful."

In addition, the incidence of grade 3/4 neurotoxicity was 3.8% with ALC, much higher than the 0.5% seen with placebo.

Patients in the ALC group also had scores on the FACT trial outcome index subscale (FACT-TOI), an overall measure of function, that were on average 3.5 points lower (worse) than those among their placebo counterparts (P = .03). There were no significant differences between groups in terms of fatigue and other toxicities.

The investigators have collected biosamples and will be assessing potential biological correlates with peripheral neuropathy outcomes, according to Dr. Hershman.

"We are looking at DNA, oxidative stress, and carnitine levels to better understand the mechanisms of chemotherapy-induced peripheral neuropathy to begin with, because there is not a whole lot known in terms of mechanism," she said. "If we can figure out what makes people worse, then we will maybe be able to figure out how to make people better from a more mechanistic standpoint, because there are very few drugs to treat chemotherapy-induced peripheral neuropathy."

An obvious concern from the trial’s findings is that ALC may somehow potentiate the neurotoxic effects of taxanes. "Based on these data, physicians should be telling patients not to take ALC during adjuvant chemotherapy," Dr. Hershman concluded. "You need to talk to patients. We know from the literature that overwhelmingly large number of patients take supplements during chemotherapy and afterward, many of which have not been tested. It’s important to get that history from patients."

Dr. Barton, the discussant, praised the trial’s rigorous methodology and proposed that there may have been several reasons for the lack of ALC benefit in preventing neuropathy, despite compelling earlier data.

Previous prevention research was done in animals and thus may not translate to humans, she said. And a positive trial for treatment in humans used intravenous administration, which may result in different bioavailability. Finally, "ALC capsules needed to be taken three times a day, and they are rather large, and these patients were, after all, on chemotherapy. They were likely nauseated [and] dyspeptic, and taking what some might call a horse pill three times a day could not have been an easy task. The study did use pill diaries, but we know those aren’t a perfect tool for adherence."

 

 

"The great thing is that the study collected blood and they are able to look at carnitine levels," Dr. Barton said. "So if carnitine is up in the group that got acetyl-carnitine and not in the group that got placebo, well, I think that pretty much confirms that this just didn’t work."

ALC for Treatment of Peripheral Neuropathy

In the second trial, protocol ZHAOKE-2007L03540, investigators led by Dr. Yuanjue Sun of the Sixth Affiliated Hospital of Shanghai (China) Jiao Tong University, enrolled 239 patients who had cancer of various types and stages, had completed chemotherapy, and had had at least grade 2 peripheral neuropathy for up to 6 months.

They were randomly assigned to receive either oral ALC at a dose of 3 g/day or matching placebo, for 8 weeks, with outcomes assessed at clinic visits or by telephone.

Analyses showed that compared with their counterparts in the placebo group, patients in the ALC group were more likely to have had an improvement of at least one grade in their neuropathy, both at 8 weeks (51% vs. 24%; P less than .001) and at 12 weeks (58% vs. 40%; P less than .001).

In terms of secondary outcomes, the ALC group was also more likely to have had an improvement in cancer-related fatigue (31% vs. 20%; P = .048), physical strength (29% vs. 13%; P = .02), and electrophysiology in peripheral nerves (75% vs. 58%; P = .02).

The two groups had statistically indistinguishable rates of adverse events (20% vs. 15%) and adverse reactions (6% vs. 5%). The most common events were gastrointestinal ones and skin allergies.

"This is the first time to confirm that ALC has a positive effect to cure chemotherapy-induced peripheral neuropathy in the Chinese population," Dr. Sun commented through a translator.

"I think the very important thing for this trial is, it is a different kind of patient population. Before this, most clinical trials were performed in [whites] or maybe Americans. This is an only-Asian [population]," he noted, and it is possible that there are genetic differences in how ALC is metabolized.

Dr. Barton, the discussant, took a cautionary view, saying that "there are some things to consider before going out and telling patients to consider acetyl-carnitine for their peripheral neuropathy."

It was unclear from the results reported whether the two treatment groups were well balanced and what criteria were used to define improvement for the secondary outcomes, she noted. Additionally, "outcome measures were all provider graded, [and there were] no self-report measures, so it is difficult to understand the impact of treatment on symptoms, particularly from the patient perspective," she noted.

Dr. Hershman, Dr. Sun, and Dr. Barton disclosed no relevant conflicts of interest; the ZHAOKE-2007L03540 trial was sponsored by Lee’s Pharmaceutical Limited.

CHICAGO – The impact of acetyl-l-carnitine on chemotherapy-induced peripheral neuropathy may depend largely on the clinical context and patient population, a pair of phase III trials suggests.

Acetyl-l-carnitine (ALC), a natural substance marketed over the counter as a dietary supplement, is popular among cancer patients as a result of preclinical and early-phase data in chemotherapy-related neuropathy and also a study in patients with diabetes-related peripheral neuropathy.

But in a trial among 409 U.S. women receiving adjuvant chemotherapy for breast cancer, those who took ALC not only had no decrease in the development of peripheral neuropathy symptoms relative to peers who were given a placebo, but actually had an increase. And they had a higher rate of serious neuropathy, too.

In contrast, in a trial among more than 200 Chinese patients with various cancers who had peripheral neuropathy from previous chemotherapy, those who took ALC were more likely than those who took a placebo to have an improvement of at least one grade in their neuropathy. They also were more likely to have improvements in fatigue and strength.

Taken together, the two trials, which were reported in a poster discussion session at the annual meeting of the American Society of Clinical Oncology, provide yet another cautionary lesson on the complexity of combining conventional and complementary therapies.

"The use of ALC for prevention is not recommended, and I would say, based on [these results], should be cautioned against. It will be interesting to see the carnitine data and to understand, as much as possible, why the trial was negative," commented Debra L. Barton, Ph.D., of the Mayo Clinic in Rochester, Minn., who was invited to discuss the research. "Further studies are needed to really understand if ALC should be used to treat peripheral neuropathy."

ALC for Prevention of Peripheral Neuropathy

Dr. Dawn L. Hershman

In the first trial, Southwest Oncology Group (SWOG) protocol S0715, investigators led by Dr. Dawn L. Hershman randomized women receiving adjuvant taxane chemotherapy for early breast cancer evenly to either oral ALC 1,000 mg three times daily or matching placebo, for 24 weeks.

Compared with their counterparts in the placebo group, women in the ALC group were more likely to have a greater than 5-point adjusted decrease on the neurotoxicity subscale of the Functional Assessment of Cancer Therapy–Taxane (FACT-NTX) instrument at 12 weeks (odds ratio, 1.48; P = .08) and also at 24 weeks (38% vs. 28%; OR, 1.57; P = .05).

This magnitude of worsening is clinically meaningful, maintained Dr. Hershman of Columbia University in New York, "so this is not like a lot of studies where you find a statistically significant difference that’s not clinically meaningful."

In addition, the incidence of grade 3/4 neurotoxicity was 3.8% with ALC, much higher than the 0.5% seen with placebo.

Patients in the ALC group also had scores on the FACT trial outcome index subscale (FACT-TOI), an overall measure of function, that were on average 3.5 points lower (worse) than those among their placebo counterparts (P = .03). There were no significant differences between groups in terms of fatigue and other toxicities.

The investigators have collected biosamples and will be assessing potential biological correlates with peripheral neuropathy outcomes, according to Dr. Hershman.

"We are looking at DNA, oxidative stress, and carnitine levels to better understand the mechanisms of chemotherapy-induced peripheral neuropathy to begin with, because there is not a whole lot known in terms of mechanism," she said. "If we can figure out what makes people worse, then we will maybe be able to figure out how to make people better from a more mechanistic standpoint, because there are very few drugs to treat chemotherapy-induced peripheral neuropathy."

An obvious concern from the trial’s findings is that ALC may somehow potentiate the neurotoxic effects of taxanes. "Based on these data, physicians should be telling patients not to take ALC during adjuvant chemotherapy," Dr. Hershman concluded. "You need to talk to patients. We know from the literature that overwhelmingly large number of patients take supplements during chemotherapy and afterward, many of which have not been tested. It’s important to get that history from patients."

Dr. Barton, the discussant, praised the trial’s rigorous methodology and proposed that there may have been several reasons for the lack of ALC benefit in preventing neuropathy, despite compelling earlier data.

Previous prevention research was done in animals and thus may not translate to humans, she said. And a positive trial for treatment in humans used intravenous administration, which may result in different bioavailability. Finally, "ALC capsules needed to be taken three times a day, and they are rather large, and these patients were, after all, on chemotherapy. They were likely nauseated [and] dyspeptic, and taking what some might call a horse pill three times a day could not have been an easy task. The study did use pill diaries, but we know those aren’t a perfect tool for adherence."

 

 

"The great thing is that the study collected blood and they are able to look at carnitine levels," Dr. Barton said. "So if carnitine is up in the group that got acetyl-carnitine and not in the group that got placebo, well, I think that pretty much confirms that this just didn’t work."

ALC for Treatment of Peripheral Neuropathy

In the second trial, protocol ZHAOKE-2007L03540, investigators led by Dr. Yuanjue Sun of the Sixth Affiliated Hospital of Shanghai (China) Jiao Tong University, enrolled 239 patients who had cancer of various types and stages, had completed chemotherapy, and had had at least grade 2 peripheral neuropathy for up to 6 months.

They were randomly assigned to receive either oral ALC at a dose of 3 g/day or matching placebo, for 8 weeks, with outcomes assessed at clinic visits or by telephone.

Analyses showed that compared with their counterparts in the placebo group, patients in the ALC group were more likely to have had an improvement of at least one grade in their neuropathy, both at 8 weeks (51% vs. 24%; P less than .001) and at 12 weeks (58% vs. 40%; P less than .001).

In terms of secondary outcomes, the ALC group was also more likely to have had an improvement in cancer-related fatigue (31% vs. 20%; P = .048), physical strength (29% vs. 13%; P = .02), and electrophysiology in peripheral nerves (75% vs. 58%; P = .02).

The two groups had statistically indistinguishable rates of adverse events (20% vs. 15%) and adverse reactions (6% vs. 5%). The most common events were gastrointestinal ones and skin allergies.

"This is the first time to confirm that ALC has a positive effect to cure chemotherapy-induced peripheral neuropathy in the Chinese population," Dr. Sun commented through a translator.

"I think the very important thing for this trial is, it is a different kind of patient population. Before this, most clinical trials were performed in [whites] or maybe Americans. This is an only-Asian [population]," he noted, and it is possible that there are genetic differences in how ALC is metabolized.

Dr. Barton, the discussant, took a cautionary view, saying that "there are some things to consider before going out and telling patients to consider acetyl-carnitine for their peripheral neuropathy."

It was unclear from the results reported whether the two treatment groups were well balanced and what criteria were used to define improvement for the secondary outcomes, she noted. Additionally, "outcome measures were all provider graded, [and there were] no self-report measures, so it is difficult to understand the impact of treatment on symptoms, particularly from the patient perspective," she noted.

Dr. Hershman, Dr. Sun, and Dr. Barton disclosed no relevant conflicts of interest; the ZHAOKE-2007L03540 trial was sponsored by Lee’s Pharmaceutical Limited.

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Acetyl-l-Carnitine Yields Mixed Results for Chemo-Induced Neuropathy
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Acetyl-l-Carnitine Yields Mixed Results for Chemo-Induced Neuropathy
Legacy Keywords
acetyl-l-carnitine, peripheral neuropathy, ALC cancer, chemotherapy-related neuropathy, breast cancer chemotherapy, ASCO 2012
Legacy Keywords
acetyl-l-carnitine, peripheral neuropathy, ALC cancer, chemotherapy-related neuropathy, breast cancer chemotherapy, ASCO 2012
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AT THE ANNUAL MEETING OF THE AMERICAN SOCIETY OF CLINICAL ONCOLOGY

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Major Finding: Patients taking ALC for prevention were more likely to have a greater than 5-point worsening of FACT-NTX score (38% vs. 28%), whereas patients taking ALC for treatment were more likely to have an improvement of at least one grade in neuropathy (51% vs. 24%).

Data Source: Investigators presented separate, randomized, placebo-controlled phase III trials among 410 women receiving adjuvant taxane chemotherapy for breast cancer and 239 patients with cancer and chemotherapy-induced peripheral neuropathy.

Disclosures: Dr. Hershman, Dr. Sun, and Dr. Barton disclosed no relevant conflicts of interest; the ZHAOKE-2007L03540 trial was sponsored by Lee’s Pharmaceutical Limited.