VIDEO: Midostaurin hits mark in FLT3-mutated AML

Article Type
Changed
Fri, 01/04/2019 - 09:46
Display Headline
VIDEO: Midostaurin hits mark in FLT3-mutated AML

ORLANDO – The oral multikinase inhibitor midostaurin improved overall survival by 23% when added to standard chemotherapy and given as maintenance therapy for 1 year in newly diagnosed patients with FLT3-mutated acute myeloid leukemia (AML) in the global phase III CALGB 10603/RATIFY trial.

The results struck a chord at the annual meeting of the American Society of Hematology because the benefits of targeted therapy have so far eluded AML patients despite transforming the treatment of other blood cancers. Currently, there are no approved, targeted treatments for AML.

CALGB 10603/RATIFY is the first large, controlled trial to show an overall survival benefit in the roughly 30% of AML patients with a mutation in the FLT3 gene.

“This is exciting because we haven’t had a new treatment in AML for 30 years,” Dr. Robert Hromas of the University of Florida, Gainesville, said while moderating a press conference highlighting the plenary abstract.

The results were a decade in the making after midostaurin failed previously when used in all AML patients rather than the subset with the FLT3 mutation. But the persistence of researchers, the international collaboration, and funding in cancer research paid off, Dr. Hromas said.

Study author Dr. Richard M. Stone, chief of staff at Dana-Farber Cancer Institute in Boston, reviewed the results of CALGB 10603/RATIFY in an interview.

CALGB 10603/RATIFY was sponsored by the Cancer Therapy Evaluation Program. Dr. Stone reported financial relationships with several drug companies including Novartis, which provided the study drug and sponsored the trial outside North America. Dr. Hromas disclosed serving as an uncompensated advisory board member without equity for Cloud Pharmaceuticals.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

[email protected]

References

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
acute myeloid leukemia, AML, FLT3, midostaurin, targeted therapy, blood cancer, ASH
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

ORLANDO – The oral multikinase inhibitor midostaurin improved overall survival by 23% when added to standard chemotherapy and given as maintenance therapy for 1 year in newly diagnosed patients with FLT3-mutated acute myeloid leukemia (AML) in the global phase III CALGB 10603/RATIFY trial.

The results struck a chord at the annual meeting of the American Society of Hematology because the benefits of targeted therapy have so far eluded AML patients despite transforming the treatment of other blood cancers. Currently, there are no approved, targeted treatments for AML.

CALGB 10603/RATIFY is the first large, controlled trial to show an overall survival benefit in the roughly 30% of AML patients with a mutation in the FLT3 gene.

“This is exciting because we haven’t had a new treatment in AML for 30 years,” Dr. Robert Hromas of the University of Florida, Gainesville, said while moderating a press conference highlighting the plenary abstract.

The results were a decade in the making after midostaurin failed previously when used in all AML patients rather than the subset with the FLT3 mutation. But the persistence of researchers, the international collaboration, and funding in cancer research paid off, Dr. Hromas said.

Study author Dr. Richard M. Stone, chief of staff at Dana-Farber Cancer Institute in Boston, reviewed the results of CALGB 10603/RATIFY in an interview.

CALGB 10603/RATIFY was sponsored by the Cancer Therapy Evaluation Program. Dr. Stone reported financial relationships with several drug companies including Novartis, which provided the study drug and sponsored the trial outside North America. Dr. Hromas disclosed serving as an uncompensated advisory board member without equity for Cloud Pharmaceuticals.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

[email protected]

ORLANDO – The oral multikinase inhibitor midostaurin improved overall survival by 23% when added to standard chemotherapy and given as maintenance therapy for 1 year in newly diagnosed patients with FLT3-mutated acute myeloid leukemia (AML) in the global phase III CALGB 10603/RATIFY trial.

The results struck a chord at the annual meeting of the American Society of Hematology because the benefits of targeted therapy have so far eluded AML patients despite transforming the treatment of other blood cancers. Currently, there are no approved, targeted treatments for AML.

CALGB 10603/RATIFY is the first large, controlled trial to show an overall survival benefit in the roughly 30% of AML patients with a mutation in the FLT3 gene.

“This is exciting because we haven’t had a new treatment in AML for 30 years,” Dr. Robert Hromas of the University of Florida, Gainesville, said while moderating a press conference highlighting the plenary abstract.

The results were a decade in the making after midostaurin failed previously when used in all AML patients rather than the subset with the FLT3 mutation. But the persistence of researchers, the international collaboration, and funding in cancer research paid off, Dr. Hromas said.

Study author Dr. Richard M. Stone, chief of staff at Dana-Farber Cancer Institute in Boston, reviewed the results of CALGB 10603/RATIFY in an interview.

CALGB 10603/RATIFY was sponsored by the Cancer Therapy Evaluation Program. Dr. Stone reported financial relationships with several drug companies including Novartis, which provided the study drug and sponsored the trial outside North America. Dr. Hromas disclosed serving as an uncompensated advisory board member without equity for Cloud Pharmaceuticals.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
VIDEO: Midostaurin hits mark in FLT3-mutated AML
Display Headline
VIDEO: Midostaurin hits mark in FLT3-mutated AML
Legacy Keywords
acute myeloid leukemia, AML, FLT3, midostaurin, targeted therapy, blood cancer, ASH
Legacy Keywords
acute myeloid leukemia, AML, FLT3, midostaurin, targeted therapy, blood cancer, ASH
Article Source

AT ASH 2015

PURLs Copyright

Inside the Article

ASH: Oral drug offers alternative to lifelong transfusions in sickle cell

Not yet front line therapy
Article Type
Changed
Fri, 01/18/2019 - 15:30
Display Headline
ASH: Oral drug offers alternative to lifelong transfusions in sickle cell

ORLANDO – Oral hydroxyurea is as good as chronic red blood cell transfusions for prevention of primary stroke in children at high-risk for this devastating complication of sickle cell disease, results of the TWiTCH study show.

No child suffered a stroke with either hydroxyurea or monthly transfusions and transcranial doppler (TCD) velocities were maintained in both arms.

The study was stopped early, however, after noninferiority was shown for the primary end point of TCD mean velocities on the index side at 24 months, with a post-hoc analysis suggesting hydroxyurea may even be superior, study author Dr. Russell E. Ware, director of hematology at Cincinnati (Ohio) Children’s Hospital Medical Center, reported during the plenary session at the annual meeting of the American Society of Hematology.

Patrice Wendling/Frontline Medical News
Dr. Russell Ware

“Hydroxyurea therapy can substitute for chronic transfusions to maintain TCD velocities and help prevent primary stroke,” he said during a press briefing.

The final mean TCD velocities were 143 cm/second in the transfusion arm and 138 cm/sec in the hydroxyurea arm, resulting in P values of 8.82 x 10-16 for non-inferiority by intention-to-treat analysis and 0.023 for superiority in a post-hoc analysis.

Hydroxyurea also had the added benefit of improving iron overload status more than monthly transfusions based on a greater average change in serum ferritin (-1,085 ng/mL vs. -38 ng/mL; P less than .001) and liver iron concentrations (-1.9 mg/g vs. +2.4 mg/g; P = .001), according to their report.

Press briefing moderator Dr. Alexis Thompson, of the Ann & Robert H. Lurie Children’s Hospital of Chicago, commented, “This truly is one of the abstracts that are being presenting at the meeting today that can be defined as practice changing. There are many families who have great difficulty accepting the reality, prior to the TWiTCH study, of their children having to be transfused lifelong.”

Strokes occur in up to 10% of children with sickle cell disease (SCD). Transfusions are effective for stroke prophylaxis in this setting, but have to be continued lifelong and can lead to iron overload and other complications.

Based on the participating sites, at least 80% of children with abnormal TCD velocities currently on blood transfusions to prevent stroke would be eligible for treatment with hydroxyurea, Dr. Ware said.

Hydroxyurea increases the amount of fetal hemoglobin and fetal red blood cells and was approved more than a decade ago to ameliorate the acute and chronic complications of SCD. Its use could provide dramatic cost savings for families since a transfusion costs about $1,000 to $2,000 every month, whereas hydroxyurea costs less than a dollar a day, Dr. Ware said in an interview.

TWiTCH (TCD with Transfusions Changing to Hydroxyurea) was conducted at 26 pediatric programs and used TCD to identify 121 children with SCD who were at elevated risk of stroke based on abnormally high cerebral artery flow velocities of at least 200 cm/sec. The children were evenly randomized to 24 months of treatment. TCD velocities were obtained every 12 weeks and reviewed centrally, with local investigators blinded to the results. All children had received transfusions for at least 12 months, but had not developed severe vasculopathy.

The transfusion arm was maintained at a target hemoglobin S level of less than 30% and chelation used to manage elevated liver concentrations. Transfusions were allowed in the hydroxyurea arm until a stable maximum tolerated dose (MTD) of hydroxyurea was reached, and were then replaced by serial phlebotomy to reduce iron overload. The MTD was reached after 6 months at an average dose of about 25 mg/kg/day.

The transfusion overlap with hydroxyurea was designed as a safety measure to avoid strokes if monthly transfusions were abruptly discontinued in the hydroxyurea arm before the children had time to achieve MTD.

“The fact that that overlap was about 6 months and the fact we had about 24 months of follow-up tracking the TCD velocities over time, we feel that doesn’t affect the end statistical analysis,” Dr. Ware said.

As for whether hydroxyurea is superior to monthly transfusions, he noted that the trial was not designed for superiority and superiority was seen in a post-hoc analysis. “What we can say with certainty is that it’s non-inferior to the standard treatment,” Dr. Ware said.

The final analysis was based on 42 patients randomized to the transfusion arm who completed all 24 months of treatment, 11 with truncated treatment, and 8 withdrawals, and 41 patients assigned to the hydroxyurea arm who completed all treatment, 13 with truncated treatment and 6 withdrawals.

Sickle cell-related serious adverse events were more common in the hydroxyurea arm than the transfusion arm (23 vs. 15), but none were related to the study drug or procedures.

 

 

There were 29 new centrally adjudicated neurological events including 3 transient ischemic attacks in each arm. In the transfusion arm, one child was withdrawn per protocol after developing TCD velocities exceeding 240 cm/sec and a second developed new vasculopathy. The safety of long-term hydroxyurea has been established in multiple pediatric studies, Dr. Ware said.

TWiTCH was funded by the National Heart, Lung and Blood Institute and sponsored by Cincinnati Children’s Hospital Medical Center. Dr. Ware reported serving as a data safety monitoring board member for Eli Lilly, consultancy for Bayer, and research funding from Bristol Myers Squibb. Dr. Thompson disclosed research funding from Amgen, Baxalta, bluebird bio, Celgene, Eli Lilly, GlaxoSmithKline, Mast, and Novartis, and consultancy for ApoPharma, bluebird bio, and Novartis.

[email protected]

References

Body

Abnormal transcranial Doppler findings in sickle cell disease indicates that the pediatric patient is at high risk of a primary stroke. To date, the standard of care has been lifelong transfusion for these patients.

This study indicates there may be a viable alternative to transfusions with less invasive therapy and reduced risk of iron loading. What is not addressed, however, is whether we use hydroxyurea as front line therapy for children with abnormal findings on transcranial Doppler. The study patients had been on transfusions for at least 12 months when they were enrolled in the study and had normalized velocities on transcranial Doppler.

Do we still need to screen sickle cell disease patient patients with transcranial Doppler for stroke risk? The answer is 'yes.' What if they are already on hydroxyurea? Still the answer is 'yes.'

Should  transcranial Doppler screening also be linked with MRI/MRA to look at vessels? This study refers to a select group of patients with no significant vasculopathy noted on brain imaging.

So how does the community provider interpret these finding for the real-world care of a patient? How do we not over interpret or under interpret the data? In partnership with a hematologist each child should continue to get transcranial Doppler screening annually and transfusions initiated for abnormal transcranial Doppler and study methods should be followed with crossing over to hydroxyurea for patients who normalize their transcranial Doppler results at 12 months and have no evidence of significant vasculopathy on brain imaging.

Transcranial Doppler screening should continue annually per guidelines even if the patient is already on hydroxyurea for other indications or was switched to hydroxyurea from transfusions. This is a situation that is more likely to occur in the real world clinical setting as hydroxyurea use is advocated for children as early as 9 months of age.

What happens then if transcranial Doppler findings become abnormal while on hydroxyurea? If compliance is assured and the hydroxyurea dose is optimized, then we are back to square one. Primary stroke prevention with lifelong transfusion is currently the standard of care. At least until another randomized  study is done to prove non inferiority.

Dr. Ifeyinwa Osunkwo is the medical director for the sickle cell program at the Levine Cancer Institute, Carolinas Healthcare Systems, Charlotte, NC. and a member of the editorial board for Hematology News.

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
sickle cell disease, stroke, blood transfusions, hydroxyurea, pediatric blood cancer, ASH, TWiTCH
Sections
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event
Body

Abnormal transcranial Doppler findings in sickle cell disease indicates that the pediatric patient is at high risk of a primary stroke. To date, the standard of care has been lifelong transfusion for these patients.

This study indicates there may be a viable alternative to transfusions with less invasive therapy and reduced risk of iron loading. What is not addressed, however, is whether we use hydroxyurea as front line therapy for children with abnormal findings on transcranial Doppler. The study patients had been on transfusions for at least 12 months when they were enrolled in the study and had normalized velocities on transcranial Doppler.

Do we still need to screen sickle cell disease patient patients with transcranial Doppler for stroke risk? The answer is 'yes.' What if they are already on hydroxyurea? Still the answer is 'yes.'

Should  transcranial Doppler screening also be linked with MRI/MRA to look at vessels? This study refers to a select group of patients with no significant vasculopathy noted on brain imaging.

So how does the community provider interpret these finding for the real-world care of a patient? How do we not over interpret or under interpret the data? In partnership with a hematologist each child should continue to get transcranial Doppler screening annually and transfusions initiated for abnormal transcranial Doppler and study methods should be followed with crossing over to hydroxyurea for patients who normalize their transcranial Doppler results at 12 months and have no evidence of significant vasculopathy on brain imaging.

Transcranial Doppler screening should continue annually per guidelines even if the patient is already on hydroxyurea for other indications or was switched to hydroxyurea from transfusions. This is a situation that is more likely to occur in the real world clinical setting as hydroxyurea use is advocated for children as early as 9 months of age.

What happens then if transcranial Doppler findings become abnormal while on hydroxyurea? If compliance is assured and the hydroxyurea dose is optimized, then we are back to square one. Primary stroke prevention with lifelong transfusion is currently the standard of care. At least until another randomized  study is done to prove non inferiority.

Dr. Ifeyinwa Osunkwo is the medical director for the sickle cell program at the Levine Cancer Institute, Carolinas Healthcare Systems, Charlotte, NC. and a member of the editorial board for Hematology News.

Body

Abnormal transcranial Doppler findings in sickle cell disease indicates that the pediatric patient is at high risk of a primary stroke. To date, the standard of care has been lifelong transfusion for these patients.

This study indicates there may be a viable alternative to transfusions with less invasive therapy and reduced risk of iron loading. What is not addressed, however, is whether we use hydroxyurea as front line therapy for children with abnormal findings on transcranial Doppler. The study patients had been on transfusions for at least 12 months when they were enrolled in the study and had normalized velocities on transcranial Doppler.

Do we still need to screen sickle cell disease patient patients with transcranial Doppler for stroke risk? The answer is 'yes.' What if they are already on hydroxyurea? Still the answer is 'yes.'

Should  transcranial Doppler screening also be linked with MRI/MRA to look at vessels? This study refers to a select group of patients with no significant vasculopathy noted on brain imaging.

So how does the community provider interpret these finding for the real-world care of a patient? How do we not over interpret or under interpret the data? In partnership with a hematologist each child should continue to get transcranial Doppler screening annually and transfusions initiated for abnormal transcranial Doppler and study methods should be followed with crossing over to hydroxyurea for patients who normalize their transcranial Doppler results at 12 months and have no evidence of significant vasculopathy on brain imaging.

Transcranial Doppler screening should continue annually per guidelines even if the patient is already on hydroxyurea for other indications or was switched to hydroxyurea from transfusions. This is a situation that is more likely to occur in the real world clinical setting as hydroxyurea use is advocated for children as early as 9 months of age.

What happens then if transcranial Doppler findings become abnormal while on hydroxyurea? If compliance is assured and the hydroxyurea dose is optimized, then we are back to square one. Primary stroke prevention with lifelong transfusion is currently the standard of care. At least until another randomized  study is done to prove non inferiority.

Dr. Ifeyinwa Osunkwo is the medical director for the sickle cell program at the Levine Cancer Institute, Carolinas Healthcare Systems, Charlotte, NC. and a member of the editorial board for Hematology News.

Title
Not yet front line therapy
Not yet front line therapy

ORLANDO – Oral hydroxyurea is as good as chronic red blood cell transfusions for prevention of primary stroke in children at high-risk for this devastating complication of sickle cell disease, results of the TWiTCH study show.

No child suffered a stroke with either hydroxyurea or monthly transfusions and transcranial doppler (TCD) velocities were maintained in both arms.

The study was stopped early, however, after noninferiority was shown for the primary end point of TCD mean velocities on the index side at 24 months, with a post-hoc analysis suggesting hydroxyurea may even be superior, study author Dr. Russell E. Ware, director of hematology at Cincinnati (Ohio) Children’s Hospital Medical Center, reported during the plenary session at the annual meeting of the American Society of Hematology.

Patrice Wendling/Frontline Medical News
Dr. Russell Ware

“Hydroxyurea therapy can substitute for chronic transfusions to maintain TCD velocities and help prevent primary stroke,” he said during a press briefing.

The final mean TCD velocities were 143 cm/second in the transfusion arm and 138 cm/sec in the hydroxyurea arm, resulting in P values of 8.82 x 10-16 for non-inferiority by intention-to-treat analysis and 0.023 for superiority in a post-hoc analysis.

Hydroxyurea also had the added benefit of improving iron overload status more than monthly transfusions based on a greater average change in serum ferritin (-1,085 ng/mL vs. -38 ng/mL; P less than .001) and liver iron concentrations (-1.9 mg/g vs. +2.4 mg/g; P = .001), according to their report.

Press briefing moderator Dr. Alexis Thompson, of the Ann & Robert H. Lurie Children’s Hospital of Chicago, commented, “This truly is one of the abstracts that are being presenting at the meeting today that can be defined as practice changing. There are many families who have great difficulty accepting the reality, prior to the TWiTCH study, of their children having to be transfused lifelong.”

Strokes occur in up to 10% of children with sickle cell disease (SCD). Transfusions are effective for stroke prophylaxis in this setting, but have to be continued lifelong and can lead to iron overload and other complications.

Based on the participating sites, at least 80% of children with abnormal TCD velocities currently on blood transfusions to prevent stroke would be eligible for treatment with hydroxyurea, Dr. Ware said.

Hydroxyurea increases the amount of fetal hemoglobin and fetal red blood cells and was approved more than a decade ago to ameliorate the acute and chronic complications of SCD. Its use could provide dramatic cost savings for families since a transfusion costs about $1,000 to $2,000 every month, whereas hydroxyurea costs less than a dollar a day, Dr. Ware said in an interview.

TWiTCH (TCD with Transfusions Changing to Hydroxyurea) was conducted at 26 pediatric programs and used TCD to identify 121 children with SCD who were at elevated risk of stroke based on abnormally high cerebral artery flow velocities of at least 200 cm/sec. The children were evenly randomized to 24 months of treatment. TCD velocities were obtained every 12 weeks and reviewed centrally, with local investigators blinded to the results. All children had received transfusions for at least 12 months, but had not developed severe vasculopathy.

The transfusion arm was maintained at a target hemoglobin S level of less than 30% and chelation used to manage elevated liver concentrations. Transfusions were allowed in the hydroxyurea arm until a stable maximum tolerated dose (MTD) of hydroxyurea was reached, and were then replaced by serial phlebotomy to reduce iron overload. The MTD was reached after 6 months at an average dose of about 25 mg/kg/day.

The transfusion overlap with hydroxyurea was designed as a safety measure to avoid strokes if monthly transfusions were abruptly discontinued in the hydroxyurea arm before the children had time to achieve MTD.

“The fact that that overlap was about 6 months and the fact we had about 24 months of follow-up tracking the TCD velocities over time, we feel that doesn’t affect the end statistical analysis,” Dr. Ware said.

As for whether hydroxyurea is superior to monthly transfusions, he noted that the trial was not designed for superiority and superiority was seen in a post-hoc analysis. “What we can say with certainty is that it’s non-inferior to the standard treatment,” Dr. Ware said.

The final analysis was based on 42 patients randomized to the transfusion arm who completed all 24 months of treatment, 11 with truncated treatment, and 8 withdrawals, and 41 patients assigned to the hydroxyurea arm who completed all treatment, 13 with truncated treatment and 6 withdrawals.

Sickle cell-related serious adverse events were more common in the hydroxyurea arm than the transfusion arm (23 vs. 15), but none were related to the study drug or procedures.

 

 

There were 29 new centrally adjudicated neurological events including 3 transient ischemic attacks in each arm. In the transfusion arm, one child was withdrawn per protocol after developing TCD velocities exceeding 240 cm/sec and a second developed new vasculopathy. The safety of long-term hydroxyurea has been established in multiple pediatric studies, Dr. Ware said.

TWiTCH was funded by the National Heart, Lung and Blood Institute and sponsored by Cincinnati Children’s Hospital Medical Center. Dr. Ware reported serving as a data safety monitoring board member for Eli Lilly, consultancy for Bayer, and research funding from Bristol Myers Squibb. Dr. Thompson disclosed research funding from Amgen, Baxalta, bluebird bio, Celgene, Eli Lilly, GlaxoSmithKline, Mast, and Novartis, and consultancy for ApoPharma, bluebird bio, and Novartis.

[email protected]

ORLANDO – Oral hydroxyurea is as good as chronic red blood cell transfusions for prevention of primary stroke in children at high-risk for this devastating complication of sickle cell disease, results of the TWiTCH study show.

No child suffered a stroke with either hydroxyurea or monthly transfusions and transcranial doppler (TCD) velocities were maintained in both arms.

The study was stopped early, however, after noninferiority was shown for the primary end point of TCD mean velocities on the index side at 24 months, with a post-hoc analysis suggesting hydroxyurea may even be superior, study author Dr. Russell E. Ware, director of hematology at Cincinnati (Ohio) Children’s Hospital Medical Center, reported during the plenary session at the annual meeting of the American Society of Hematology.

Patrice Wendling/Frontline Medical News
Dr. Russell Ware

“Hydroxyurea therapy can substitute for chronic transfusions to maintain TCD velocities and help prevent primary stroke,” he said during a press briefing.

The final mean TCD velocities were 143 cm/second in the transfusion arm and 138 cm/sec in the hydroxyurea arm, resulting in P values of 8.82 x 10-16 for non-inferiority by intention-to-treat analysis and 0.023 for superiority in a post-hoc analysis.

Hydroxyurea also had the added benefit of improving iron overload status more than monthly transfusions based on a greater average change in serum ferritin (-1,085 ng/mL vs. -38 ng/mL; P less than .001) and liver iron concentrations (-1.9 mg/g vs. +2.4 mg/g; P = .001), according to their report.

Press briefing moderator Dr. Alexis Thompson, of the Ann & Robert H. Lurie Children’s Hospital of Chicago, commented, “This truly is one of the abstracts that are being presenting at the meeting today that can be defined as practice changing. There are many families who have great difficulty accepting the reality, prior to the TWiTCH study, of their children having to be transfused lifelong.”

Strokes occur in up to 10% of children with sickle cell disease (SCD). Transfusions are effective for stroke prophylaxis in this setting, but have to be continued lifelong and can lead to iron overload and other complications.

Based on the participating sites, at least 80% of children with abnormal TCD velocities currently on blood transfusions to prevent stroke would be eligible for treatment with hydroxyurea, Dr. Ware said.

Hydroxyurea increases the amount of fetal hemoglobin and fetal red blood cells and was approved more than a decade ago to ameliorate the acute and chronic complications of SCD. Its use could provide dramatic cost savings for families since a transfusion costs about $1,000 to $2,000 every month, whereas hydroxyurea costs less than a dollar a day, Dr. Ware said in an interview.

TWiTCH (TCD with Transfusions Changing to Hydroxyurea) was conducted at 26 pediatric programs and used TCD to identify 121 children with SCD who were at elevated risk of stroke based on abnormally high cerebral artery flow velocities of at least 200 cm/sec. The children were evenly randomized to 24 months of treatment. TCD velocities were obtained every 12 weeks and reviewed centrally, with local investigators blinded to the results. All children had received transfusions for at least 12 months, but had not developed severe vasculopathy.

The transfusion arm was maintained at a target hemoglobin S level of less than 30% and chelation used to manage elevated liver concentrations. Transfusions were allowed in the hydroxyurea arm until a stable maximum tolerated dose (MTD) of hydroxyurea was reached, and were then replaced by serial phlebotomy to reduce iron overload. The MTD was reached after 6 months at an average dose of about 25 mg/kg/day.

The transfusion overlap with hydroxyurea was designed as a safety measure to avoid strokes if monthly transfusions were abruptly discontinued in the hydroxyurea arm before the children had time to achieve MTD.

“The fact that that overlap was about 6 months and the fact we had about 24 months of follow-up tracking the TCD velocities over time, we feel that doesn’t affect the end statistical analysis,” Dr. Ware said.

As for whether hydroxyurea is superior to monthly transfusions, he noted that the trial was not designed for superiority and superiority was seen in a post-hoc analysis. “What we can say with certainty is that it’s non-inferior to the standard treatment,” Dr. Ware said.

The final analysis was based on 42 patients randomized to the transfusion arm who completed all 24 months of treatment, 11 with truncated treatment, and 8 withdrawals, and 41 patients assigned to the hydroxyurea arm who completed all treatment, 13 with truncated treatment and 6 withdrawals.

Sickle cell-related serious adverse events were more common in the hydroxyurea arm than the transfusion arm (23 vs. 15), but none were related to the study drug or procedures.

 

 

There were 29 new centrally adjudicated neurological events including 3 transient ischemic attacks in each arm. In the transfusion arm, one child was withdrawn per protocol after developing TCD velocities exceeding 240 cm/sec and a second developed new vasculopathy. The safety of long-term hydroxyurea has been established in multiple pediatric studies, Dr. Ware said.

TWiTCH was funded by the National Heart, Lung and Blood Institute and sponsored by Cincinnati Children’s Hospital Medical Center. Dr. Ware reported serving as a data safety monitoring board member for Eli Lilly, consultancy for Bayer, and research funding from Bristol Myers Squibb. Dr. Thompson disclosed research funding from Amgen, Baxalta, bluebird bio, Celgene, Eli Lilly, GlaxoSmithKline, Mast, and Novartis, and consultancy for ApoPharma, bluebird bio, and Novartis.

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
ASH: Oral drug offers alternative to lifelong transfusions in sickle cell
Display Headline
ASH: Oral drug offers alternative to lifelong transfusions in sickle cell
Legacy Keywords
sickle cell disease, stroke, blood transfusions, hydroxyurea, pediatric blood cancer, ASH, TWiTCH
Legacy Keywords
sickle cell disease, stroke, blood transfusions, hydroxyurea, pediatric blood cancer, ASH, TWiTCH
Sections
Article Source

AT ASH 2015

PURLs Copyright

Inside the Article

Vitals

Key clinical point: Hydroxyurea can substitute for chronic transfusions to prevent primary stroke in children with sickle cell disease and abnormal transcranial doppler velocities.

Major finding: Mean TCD velocities were 143 cm/sec with transfusions vs. 138 cm/sec with hydroxyurea (P less than 8.82 x 10-16 for noninferiority; P = .023 for superiority).

Data source: Phase III, noninferiority study in 121 children with sickle cell disease.

Disclosures: TWiTCH was funded by the National Heart, Lung and Blood Institute and sponsored by Cincinnati Children’s Hospital Medical Center. Dr. Ware reported serving as a data safety monitoring board member for Eli Lilly, consultancy for Bayer, and research funding from Bristol Myers Squibb. Dr. Thompson disclosed research funding from Amgen, Baxalta, bluebird bio, Celgene, Eli Lilly, GlaxoSmithKline, Mast, and Novartis, and consultancy for ApoPharma, bluebird bio, and Novartis.

ASH: Donor CAR-T cells elicit responses in mixture of progressive B-cell cancers

Article Type
Changed
Thu, 01/12/2023 - 10:46
Display Headline
ASH: Donor CAR-T cells elicit responses in mixture of progressive B-cell cancers

ORLANDO – A single infusion of donor-derived chimeric antigen receptor (CAR)-modified T cells targeting CD19 achieved remission in 9 of 20 patients with B-cell malignancies that progressed after allogeneic stem cell transplant, a study shows.

The seven complete remissions and two partial remissions occurred without any chemotherapy and without causing acute graft-versus-host disease (GVHD).

Dr. James Kochenderfer

The experimental anti-CD 19 CAR T-cells seem particularly effective against acute lymphoid leukemia (ALL) and chronic lymphocytic leukemia (CLL), but responses also occurred in lymphoma, Dr. James Kochenderfer of the Center for Cancer Research, National Cancer Institute, in Bethesda, Md., reported at the annual meeting of the American Society of Hematology.

B-cell malignancies that persist after transplantation are often treated with unmanipulated donor lymphocytes, but these infusions are often ineffective and associated with significant morbidity and mortality from GVHD.

To improve on this approach, 20 patients were infused with T cells obtained from the original stem cell donor and transduced with a CD19-directed CAR that was encoded by a gamma-retroviral vector and included a CD28 co-stimulatory domain. The highest dose reached in the phase I study was 107 total cell/kg. Production of the anti-CD19 CAR T cells took only eight days for each patient, Dr. Kochenderfer said at a press briefing.

The patients had received at least one standard donor-leukocyte infusion, had to have minimal or no GVHD, and could not be receiving systemic immunosuppressive drugs.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

The highest response rates were in ALL, where four of five patients obtained complete remission (CR) with no detectable minimal residual disease by multi-color flow cytometry, Dr. Kochenderfer said. Two of these patients later relapsed, one is in ongoing CR at 18 months, and one went on to a second allogeneic transplant and continues in complete remission.

The longest ongoing CR at 36 months occurred in a patient treated for CLL. Another patient achieved a partial remission (PR) ongoing at 18 months, two patients progressed, and one has stable disease.

In five patients treated for Mantle cell lymphoma, there is one CR ongoing at 31 months, one PR, and three stable diseases.

Three of the five patients treated for diffuse large B-cell lymphoma experienced stable disease, one progressive disease, and one obtained a CR, but is no longer evaluable because she received other therapies for chronic GVHD. Dr. Kochenderfer went on describe an impressive response in this patient, who had large lymphoma masses at the back of her head and in her eye socket before infusion.

“Amazingly, the tumor masses completely disappeared within five days of CAR T-cell infusion,” he said.

Patients with high tumor burdens, however, experienced severe cytokine-release syndrome with fever, tachycardia, and hypertension that was treated with the interleukin-6 receptor antagonist tocilizumab (Actemra).

Only one case of mild aphasia occurred, which contrasts with other CAR T-cell therapies where neurotoxicity is common, Dr. Kochenderfer said.

One patient had continued worsening of pre-existing chronic GVHD after CAR T-cell therapy, and one patient developed very mild chronic eye GVHD more than a year after infusion.

The press corps was not fully convinced by the findings, however, asking Dr. Kochenderfer why they should be excited by the 40% remission rate when other CAR T-cell therapies have yielded remission rates as high as 90%.

Dr. Kochenderfer pointed out that four of the five ALL patients (80%) achieved a MRD-negative complete response, which compares favorably with other protocols. The remaining patients had far more advanced, treatment-resident disease of varying histologies than evaluated in other trials and, unlike most trials, all patients had received an allogeneic transplant. Further, the investigators used no chemotherapy whatsoever, whereas other CAR T-cells trials have used chemotherapy, sometimes in huge does, he said.

[email protected]

References

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
B-cell malignancy, CAR T-cell therapy, gene therapy, ASH
Sections
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

ORLANDO – A single infusion of donor-derived chimeric antigen receptor (CAR)-modified T cells targeting CD19 achieved remission in 9 of 20 patients with B-cell malignancies that progressed after allogeneic stem cell transplant, a study shows.

The seven complete remissions and two partial remissions occurred without any chemotherapy and without causing acute graft-versus-host disease (GVHD).

Dr. James Kochenderfer

The experimental anti-CD 19 CAR T-cells seem particularly effective against acute lymphoid leukemia (ALL) and chronic lymphocytic leukemia (CLL), but responses also occurred in lymphoma, Dr. James Kochenderfer of the Center for Cancer Research, National Cancer Institute, in Bethesda, Md., reported at the annual meeting of the American Society of Hematology.

B-cell malignancies that persist after transplantation are often treated with unmanipulated donor lymphocytes, but these infusions are often ineffective and associated with significant morbidity and mortality from GVHD.

To improve on this approach, 20 patients were infused with T cells obtained from the original stem cell donor and transduced with a CD19-directed CAR that was encoded by a gamma-retroviral vector and included a CD28 co-stimulatory domain. The highest dose reached in the phase I study was 107 total cell/kg. Production of the anti-CD19 CAR T cells took only eight days for each patient, Dr. Kochenderfer said at a press briefing.

The patients had received at least one standard donor-leukocyte infusion, had to have minimal or no GVHD, and could not be receiving systemic immunosuppressive drugs.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

The highest response rates were in ALL, where four of five patients obtained complete remission (CR) with no detectable minimal residual disease by multi-color flow cytometry, Dr. Kochenderfer said. Two of these patients later relapsed, one is in ongoing CR at 18 months, and one went on to a second allogeneic transplant and continues in complete remission.

The longest ongoing CR at 36 months occurred in a patient treated for CLL. Another patient achieved a partial remission (PR) ongoing at 18 months, two patients progressed, and one has stable disease.

In five patients treated for Mantle cell lymphoma, there is one CR ongoing at 31 months, one PR, and three stable diseases.

Three of the five patients treated for diffuse large B-cell lymphoma experienced stable disease, one progressive disease, and one obtained a CR, but is no longer evaluable because she received other therapies for chronic GVHD. Dr. Kochenderfer went on describe an impressive response in this patient, who had large lymphoma masses at the back of her head and in her eye socket before infusion.

“Amazingly, the tumor masses completely disappeared within five days of CAR T-cell infusion,” he said.

Patients with high tumor burdens, however, experienced severe cytokine-release syndrome with fever, tachycardia, and hypertension that was treated with the interleukin-6 receptor antagonist tocilizumab (Actemra).

Only one case of mild aphasia occurred, which contrasts with other CAR T-cell therapies where neurotoxicity is common, Dr. Kochenderfer said.

One patient had continued worsening of pre-existing chronic GVHD after CAR T-cell therapy, and one patient developed very mild chronic eye GVHD more than a year after infusion.

The press corps was not fully convinced by the findings, however, asking Dr. Kochenderfer why they should be excited by the 40% remission rate when other CAR T-cell therapies have yielded remission rates as high as 90%.

Dr. Kochenderfer pointed out that four of the five ALL patients (80%) achieved a MRD-negative complete response, which compares favorably with other protocols. The remaining patients had far more advanced, treatment-resident disease of varying histologies than evaluated in other trials and, unlike most trials, all patients had received an allogeneic transplant. Further, the investigators used no chemotherapy whatsoever, whereas other CAR T-cells trials have used chemotherapy, sometimes in huge does, he said.

[email protected]

ORLANDO – A single infusion of donor-derived chimeric antigen receptor (CAR)-modified T cells targeting CD19 achieved remission in 9 of 20 patients with B-cell malignancies that progressed after allogeneic stem cell transplant, a study shows.

The seven complete remissions and two partial remissions occurred without any chemotherapy and without causing acute graft-versus-host disease (GVHD).

Dr. James Kochenderfer

The experimental anti-CD 19 CAR T-cells seem particularly effective against acute lymphoid leukemia (ALL) and chronic lymphocytic leukemia (CLL), but responses also occurred in lymphoma, Dr. James Kochenderfer of the Center for Cancer Research, National Cancer Institute, in Bethesda, Md., reported at the annual meeting of the American Society of Hematology.

B-cell malignancies that persist after transplantation are often treated with unmanipulated donor lymphocytes, but these infusions are often ineffective and associated with significant morbidity and mortality from GVHD.

To improve on this approach, 20 patients were infused with T cells obtained from the original stem cell donor and transduced with a CD19-directed CAR that was encoded by a gamma-retroviral vector and included a CD28 co-stimulatory domain. The highest dose reached in the phase I study was 107 total cell/kg. Production of the anti-CD19 CAR T cells took only eight days for each patient, Dr. Kochenderfer said at a press briefing.

The patients had received at least one standard donor-leukocyte infusion, had to have minimal or no GVHD, and could not be receiving systemic immunosuppressive drugs.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

The highest response rates were in ALL, where four of five patients obtained complete remission (CR) with no detectable minimal residual disease by multi-color flow cytometry, Dr. Kochenderfer said. Two of these patients later relapsed, one is in ongoing CR at 18 months, and one went on to a second allogeneic transplant and continues in complete remission.

The longest ongoing CR at 36 months occurred in a patient treated for CLL. Another patient achieved a partial remission (PR) ongoing at 18 months, two patients progressed, and one has stable disease.

In five patients treated for Mantle cell lymphoma, there is one CR ongoing at 31 months, one PR, and three stable diseases.

Three of the five patients treated for diffuse large B-cell lymphoma experienced stable disease, one progressive disease, and one obtained a CR, but is no longer evaluable because she received other therapies for chronic GVHD. Dr. Kochenderfer went on describe an impressive response in this patient, who had large lymphoma masses at the back of her head and in her eye socket before infusion.

“Amazingly, the tumor masses completely disappeared within five days of CAR T-cell infusion,” he said.

Patients with high tumor burdens, however, experienced severe cytokine-release syndrome with fever, tachycardia, and hypertension that was treated with the interleukin-6 receptor antagonist tocilizumab (Actemra).

Only one case of mild aphasia occurred, which contrasts with other CAR T-cell therapies where neurotoxicity is common, Dr. Kochenderfer said.

One patient had continued worsening of pre-existing chronic GVHD after CAR T-cell therapy, and one patient developed very mild chronic eye GVHD more than a year after infusion.

The press corps was not fully convinced by the findings, however, asking Dr. Kochenderfer why they should be excited by the 40% remission rate when other CAR T-cell therapies have yielded remission rates as high as 90%.

Dr. Kochenderfer pointed out that four of the five ALL patients (80%) achieved a MRD-negative complete response, which compares favorably with other protocols. The remaining patients had far more advanced, treatment-resident disease of varying histologies than evaluated in other trials and, unlike most trials, all patients had received an allogeneic transplant. Further, the investigators used no chemotherapy whatsoever, whereas other CAR T-cells trials have used chemotherapy, sometimes in huge does, he said.

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
ASH: Donor CAR-T cells elicit responses in mixture of progressive B-cell cancers
Display Headline
ASH: Donor CAR-T cells elicit responses in mixture of progressive B-cell cancers
Legacy Keywords
B-cell malignancy, CAR T-cell therapy, gene therapy, ASH
Legacy Keywords
B-cell malignancy, CAR T-cell therapy, gene therapy, ASH
Sections
Article Source

AT ASH 2015

PURLs Copyright

Inside the Article

Vitals

Key clinical point: Allogeneic anti-CD19 CAR T-cell therapy showed promise in a treatment approach for B-cell malignancies persisting after allogeneic transplantation.

Major finding: Nine of 20 patients achieved remission with anti-CD19 CAR T-cell therapy.

Data source: Phase I study in 20 patients with CD19-positive B-cell malignancies progressing after allogeneic transplant.

Disclosures: Dr. Kochenderfer reported research funding from Bluebird bio, the study sponsor.

ASH: Gene therapy reduces transfusion needs in beta-thalassemia major

Article Type
Changed
Fri, 01/04/2019 - 09:46
Display Headline
ASH: Gene therapy reduces transfusion needs in beta-thalassemia major

ORLANDO – Lentiviral gene therapy with LentiGlobin BB305 boosts beta-globin production in patients with beta-thalassemia, but frees only some from lifelong dependence on blood transfusions, updated results of the Northstar study show.

Five patients with non-Beta-0/Beta-0 genotypes were able to stop transfusions shortly after their infusion, and remain transfusion independent for up to 16.4 months.

In four patients with the more severe form of beta-thalassemia, the Beta-0/Beta-0 genotype, red blood cell transfusion volume was reduced by 33% to 100%, with one patient stopping transfusions entirely, Dr. Mark C. Walters of the University of California-San Francisco Benioff Children’s Hospital in Oakland reported at the annual meeting of the American Society of Hematology.

Preliminary findings reported over the last two years have raised hopes that the experimental lentiviral-based therapy could be a functional cure for beta-thalassemia major and severe sickle cell disease.

Patients with beta-thalassemia major, also called Cooley’s anemia, rely on frequent blood transfusions to correct the anemia, with less than a quarter undergoing curative treatment with an allogeneic hematopoietic transplant.

In the ongoing Northstar study, 13 patients with transfusion-dependent beta-thalassemia major have been infused as of Oct. 28, 2015 with autologous CD34-positive cells transduced ex-vivo with LentiGlobin BB305 (Bluebird bio, Cambridge, Mass.), a self-inactivating, second-generation lentiviral vector containing a functioning, engineered beta-globin gene (A-T87Q). Their median age was 21 years and 11 were women.Vector-derived hemoglobin AT87Q was detectable at 6 months in 8 of 9 evaluable patients with at least six months follow-up and in 100% at 9 months, Dr. Walters reported. The median HbAT87Q level was 4.9 g/dL at 6 months, 6.5 g/dL at 9 months, and 4.2 g/dL at 12 months.

The difference in transfusion independence between genotypes is explained by endogenous non-HbAT87Q production, he said during a press briefing. While lentiglobin production was the same in patients with Beta-0/Beta-0 and non-Beta-0/Beta-0 genotypes, the Beta-0/Beta-0 patients made much smaller amounts of native hemoglobin.

Three serious post-infusion events occurred: grade 2 thrombosis, grade 3 skin infection and grade 3 veno-occlusive liver disease.

Importantly, there was no evidence of clonal dominance or replication competent lentivirus with up to 19 months follow-up.

“This is a significant advancement in the treatment of thalassemia for several reasons,” Dr. Walters told reporters. “First, compared to a bone marrow transplant, which is the only curative therapy that’s been approved, this appears to be a safer treatment in that none of these patients had a life-threatening complication. Second, because the treatment uses a thalassemia patient’s own stem cells, this bypasses the need to find a healthy bone marrow donor and thus should be more broadly available to patients affected by this disease.”

Dr. George Daley of Harvard Medical School in Boston and moderator of the press briefing, agreed that the results are an welcome advancement after decades of disappointments in the field of gene therapy including the development of insertional mutigenesis.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

In addition to the Northstar study (Ab. 201), results will be presented at the meeting from a second study examining LentiGlobin BB305 gene therapy for severe sickle cell disease and beta-thalassemia major (Ab. 202) and from the recently expanded phase I HGB-206 study in severe sickle cell disease (Ab. 3233).

Sickle cell disease represents a much larger potential market for LentiGlobin BB305, with an estimated 90,000 to 100,000 Americans affected compared with about 15,000 patients in America and Europe living with beta-thalassemia major.

[email protected]

References

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
beta-thalassemia, LentiGlobin BB305, bleeding disorder, ASH, bluebird bio
Sections
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

ORLANDO – Lentiviral gene therapy with LentiGlobin BB305 boosts beta-globin production in patients with beta-thalassemia, but frees only some from lifelong dependence on blood transfusions, updated results of the Northstar study show.

Five patients with non-Beta-0/Beta-0 genotypes were able to stop transfusions shortly after their infusion, and remain transfusion independent for up to 16.4 months.

In four patients with the more severe form of beta-thalassemia, the Beta-0/Beta-0 genotype, red blood cell transfusion volume was reduced by 33% to 100%, with one patient stopping transfusions entirely, Dr. Mark C. Walters of the University of California-San Francisco Benioff Children’s Hospital in Oakland reported at the annual meeting of the American Society of Hematology.

Preliminary findings reported over the last two years have raised hopes that the experimental lentiviral-based therapy could be a functional cure for beta-thalassemia major and severe sickle cell disease.

Patients with beta-thalassemia major, also called Cooley’s anemia, rely on frequent blood transfusions to correct the anemia, with less than a quarter undergoing curative treatment with an allogeneic hematopoietic transplant.

In the ongoing Northstar study, 13 patients with transfusion-dependent beta-thalassemia major have been infused as of Oct. 28, 2015 with autologous CD34-positive cells transduced ex-vivo with LentiGlobin BB305 (Bluebird bio, Cambridge, Mass.), a self-inactivating, second-generation lentiviral vector containing a functioning, engineered beta-globin gene (A-T87Q). Their median age was 21 years and 11 were women.Vector-derived hemoglobin AT87Q was detectable at 6 months in 8 of 9 evaluable patients with at least six months follow-up and in 100% at 9 months, Dr. Walters reported. The median HbAT87Q level was 4.9 g/dL at 6 months, 6.5 g/dL at 9 months, and 4.2 g/dL at 12 months.

The difference in transfusion independence between genotypes is explained by endogenous non-HbAT87Q production, he said during a press briefing. While lentiglobin production was the same in patients with Beta-0/Beta-0 and non-Beta-0/Beta-0 genotypes, the Beta-0/Beta-0 patients made much smaller amounts of native hemoglobin.

Three serious post-infusion events occurred: grade 2 thrombosis, grade 3 skin infection and grade 3 veno-occlusive liver disease.

Importantly, there was no evidence of clonal dominance or replication competent lentivirus with up to 19 months follow-up.

“This is a significant advancement in the treatment of thalassemia for several reasons,” Dr. Walters told reporters. “First, compared to a bone marrow transplant, which is the only curative therapy that’s been approved, this appears to be a safer treatment in that none of these patients had a life-threatening complication. Second, because the treatment uses a thalassemia patient’s own stem cells, this bypasses the need to find a healthy bone marrow donor and thus should be more broadly available to patients affected by this disease.”

Dr. George Daley of Harvard Medical School in Boston and moderator of the press briefing, agreed that the results are an welcome advancement after decades of disappointments in the field of gene therapy including the development of insertional mutigenesis.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

In addition to the Northstar study (Ab. 201), results will be presented at the meeting from a second study examining LentiGlobin BB305 gene therapy for severe sickle cell disease and beta-thalassemia major (Ab. 202) and from the recently expanded phase I HGB-206 study in severe sickle cell disease (Ab. 3233).

Sickle cell disease represents a much larger potential market for LentiGlobin BB305, with an estimated 90,000 to 100,000 Americans affected compared with about 15,000 patients in America and Europe living with beta-thalassemia major.

[email protected]

ORLANDO – Lentiviral gene therapy with LentiGlobin BB305 boosts beta-globin production in patients with beta-thalassemia, but frees only some from lifelong dependence on blood transfusions, updated results of the Northstar study show.

Five patients with non-Beta-0/Beta-0 genotypes were able to stop transfusions shortly after their infusion, and remain transfusion independent for up to 16.4 months.

In four patients with the more severe form of beta-thalassemia, the Beta-0/Beta-0 genotype, red blood cell transfusion volume was reduced by 33% to 100%, with one patient stopping transfusions entirely, Dr. Mark C. Walters of the University of California-San Francisco Benioff Children’s Hospital in Oakland reported at the annual meeting of the American Society of Hematology.

Preliminary findings reported over the last two years have raised hopes that the experimental lentiviral-based therapy could be a functional cure for beta-thalassemia major and severe sickle cell disease.

Patients with beta-thalassemia major, also called Cooley’s anemia, rely on frequent blood transfusions to correct the anemia, with less than a quarter undergoing curative treatment with an allogeneic hematopoietic transplant.

In the ongoing Northstar study, 13 patients with transfusion-dependent beta-thalassemia major have been infused as of Oct. 28, 2015 with autologous CD34-positive cells transduced ex-vivo with LentiGlobin BB305 (Bluebird bio, Cambridge, Mass.), a self-inactivating, second-generation lentiviral vector containing a functioning, engineered beta-globin gene (A-T87Q). Their median age was 21 years and 11 were women.Vector-derived hemoglobin AT87Q was detectable at 6 months in 8 of 9 evaluable patients with at least six months follow-up and in 100% at 9 months, Dr. Walters reported. The median HbAT87Q level was 4.9 g/dL at 6 months, 6.5 g/dL at 9 months, and 4.2 g/dL at 12 months.

The difference in transfusion independence between genotypes is explained by endogenous non-HbAT87Q production, he said during a press briefing. While lentiglobin production was the same in patients with Beta-0/Beta-0 and non-Beta-0/Beta-0 genotypes, the Beta-0/Beta-0 patients made much smaller amounts of native hemoglobin.

Three serious post-infusion events occurred: grade 2 thrombosis, grade 3 skin infection and grade 3 veno-occlusive liver disease.

Importantly, there was no evidence of clonal dominance or replication competent lentivirus with up to 19 months follow-up.

“This is a significant advancement in the treatment of thalassemia for several reasons,” Dr. Walters told reporters. “First, compared to a bone marrow transplant, which is the only curative therapy that’s been approved, this appears to be a safer treatment in that none of these patients had a life-threatening complication. Second, because the treatment uses a thalassemia patient’s own stem cells, this bypasses the need to find a healthy bone marrow donor and thus should be more broadly available to patients affected by this disease.”

Dr. George Daley of Harvard Medical School in Boston and moderator of the press briefing, agreed that the results are an welcome advancement after decades of disappointments in the field of gene therapy including the development of insertional mutigenesis.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

In addition to the Northstar study (Ab. 201), results will be presented at the meeting from a second study examining LentiGlobin BB305 gene therapy for severe sickle cell disease and beta-thalassemia major (Ab. 202) and from the recently expanded phase I HGB-206 study in severe sickle cell disease (Ab. 3233).

Sickle cell disease represents a much larger potential market for LentiGlobin BB305, with an estimated 90,000 to 100,000 Americans affected compared with about 15,000 patients in America and Europe living with beta-thalassemia major.

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
ASH: Gene therapy reduces transfusion needs in beta-thalassemia major
Display Headline
ASH: Gene therapy reduces transfusion needs in beta-thalassemia major
Legacy Keywords
beta-thalassemia, LentiGlobin BB305, bleeding disorder, ASH, bluebird bio
Legacy Keywords
beta-thalassemia, LentiGlobin BB305, bleeding disorder, ASH, bluebird bio
Sections
Article Source

AT ASH 2015

PURLs Copyright

Inside the Article

Vitals

Key clinical point: Lentiviral-based gene therapy with LentiGlobin BB305 restarts hemoglobin production and leads to transfusion independence in some patients with beta-thalassemia major.

Major finding: Five patients with the non-Beta-0/Beta-0 genotype were transfusion independent post-infusion.

Data source: Phase I/II study in 13 patients with transfusion-dependent beta-thalassemia major.

Disclosures: Dr. Walters reported financial relationships with ViaCord and AllCells Inc. Several co-authors have financial relationships including employment with Bluebird bio, the study sponsor. Dr. Daley disclosed consultancy with True North Therapeutics and serving as an advisory committee member for Raze Therapeutics, Ocata Therapeutics, MPM Capital, and Solasia.

Die not yet cast for lymphazurin and methylene blue dye

Article Type
Changed
Thu, 12/15/2022 - 18:01
Display Headline
Die not yet cast for lymphazurin and methylene blue dye

CHICAGO – Two commonly used dyes produced mixed results in sentinel lymph node mapping of early stage breast cancer in what was described as the highest-powered study to date.

The average number of sentinel lymph nodes identified per person was significantly higher with 1% methylene blue dye than with 1% lymphazurin (2.89 vs. 2.22; P less than .001).

Dr. Vaishali Patel

Although there is extensive support for methylene blue as a safe and efficacious alternative to lymphazurin, this finding on the number of sentinel nodes identified is not replicated in any other study, Dr. Vaishali Patel said at the annual clinical congress of the American College of Surgeons. The study was conducted at the McLaren Flint (Mich.) Medical Center. Dr. Sukamal Saha was principal investigator.

On the other hand, lymphazurin identified significantly more additional lymph nodes than methylene blue (mean 4.48 vs. 2.84; P less than .001).

Nodal positivity was also significantly higher with lymphazurin than methylene blue (14.93% vs. 8.85%; P less than .001), which also has not been reported in other trials.

“We think this does offer a true comparison between the two dyes,” Dr. Patel of Detroit Medical Center Sinai-Grace Hospital said. “The volume of dye and technique were consistent for all 651 patients. … with one surgeon performing the injections and one surgeon performing the procedures.” The 651 consecutive patients were randomly assigned based on agent availability to a preoperative injection of lymphazurin (half intraparenchymal and half subareolar in the upper outer quadrant) or an intraoperative injection of methylene blue over 5 minutes (3 ccs intraparenchymal, 1 cc subareolar, and 1 cc intradermal).

The lymphazurin and methylene blue groups were also similar in number (298 patients vs. 353 patients), age (mean 61.6 years vs. 63.5 years), and T stage (in situ 12% vs. 17.8%; T1 64% vs. 65%; T2 23% vs. 17.5%).

In contrast, three smaller, well-established studies that came to different conclusions used four different surgeons and novel techniques to inject their radiocolloid and supervised residents for lymphatic mapping, she noted.

The radiocolloid lymphazurin first demonstrated superiority over methylene blue in 1990, but alternatives continue to be investigated due to frequent nonavailability and a host of adverse events including blue hives, blue discoloration or tattooing, and anaphylaxis.

Lymphazurin also costs 10-12 times more than methylene blue, which was reflected in the study in an average per patient cost of $815 vs. $75 for methylene blue, Dr. Patel said.

The American Society of Breast Surgeons, however, recommends dual-agent mapping using blue dye and a radioisotope in breast cancer to further improve the success in identifying the sentinel lymph nodes. The improvement is likely because of the dual mechanism at play: radiocolloids become entrapped within the lymph node, whereas certain blue dyes bind to interstitial albumin and are taken up by lymphatics, she explained.

The higher number of sentinel lymph nodes in the methylene blue group may be due to its particle size, which is smaller, weighs less, and diffused faster, Dr. Patel suggested.

The higher number of additional lymph nodes captured with lymphazurin may be because of the higher frequency of nodal dissection in this group than in the methylene blue group (25% vs. 16%).

The finding of greater nodal positivity in the lymphazurin group may be related to mechanism of action or the high percentage of patients with T1 disease enrolled in the study. Still, nodal positivity was higher with lymphazurin than methylene blue regardless of T stage, she said.

The lymphazurin group had higher rates than the methylene blue group of pseudohypoxemia (10% vs. 0%; P less than .0001), but blue hives (1.34% vs. 0%; P = .043) and anaphylaxis (.67% vs. 0%; P = .20) were kept in check. Patients were premedicated and early in the series, the surgeon began excising the area of injected blue skin during the primary surgery, Dr. Patel observed.

Despite being diluted, methylene blue was associated with higher rates of seroma (3.4% vs. 1.7%; P = .005) and skin necrosis (2.55% vs. 9%; P = .005).

Discussant Dr. Alyssa Throckmorton of Baptist Memorial Health Care in Memphis pointed out that more recent data show radiocolloid mapping alone is comparable to dual-agent mapping, suggesting that blue dye may not be needed. That said, there have been national shortages of methylene blue as well as lymphazurin.

“I think in surgeons who are going to use blue dye, with the way drug shortages have become in the last few years, you are going to have to be facile and familiar with both types of dye if you are going to use that as part of your clinical practice,” she said.

 

 

[email protected]

References

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
breast cancer, lymphatic mapping, sentinel lymph node, methylene blue, lymphazurin, ACS
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

CHICAGO – Two commonly used dyes produced mixed results in sentinel lymph node mapping of early stage breast cancer in what was described as the highest-powered study to date.

The average number of sentinel lymph nodes identified per person was significantly higher with 1% methylene blue dye than with 1% lymphazurin (2.89 vs. 2.22; P less than .001).

Dr. Vaishali Patel

Although there is extensive support for methylene blue as a safe and efficacious alternative to lymphazurin, this finding on the number of sentinel nodes identified is not replicated in any other study, Dr. Vaishali Patel said at the annual clinical congress of the American College of Surgeons. The study was conducted at the McLaren Flint (Mich.) Medical Center. Dr. Sukamal Saha was principal investigator.

On the other hand, lymphazurin identified significantly more additional lymph nodes than methylene blue (mean 4.48 vs. 2.84; P less than .001).

Nodal positivity was also significantly higher with lymphazurin than methylene blue (14.93% vs. 8.85%; P less than .001), which also has not been reported in other trials.

“We think this does offer a true comparison between the two dyes,” Dr. Patel of Detroit Medical Center Sinai-Grace Hospital said. “The volume of dye and technique were consistent for all 651 patients. … with one surgeon performing the injections and one surgeon performing the procedures.” The 651 consecutive patients were randomly assigned based on agent availability to a preoperative injection of lymphazurin (half intraparenchymal and half subareolar in the upper outer quadrant) or an intraoperative injection of methylene blue over 5 minutes (3 ccs intraparenchymal, 1 cc subareolar, and 1 cc intradermal).

The lymphazurin and methylene blue groups were also similar in number (298 patients vs. 353 patients), age (mean 61.6 years vs. 63.5 years), and T stage (in situ 12% vs. 17.8%; T1 64% vs. 65%; T2 23% vs. 17.5%).

In contrast, three smaller, well-established studies that came to different conclusions used four different surgeons and novel techniques to inject their radiocolloid and supervised residents for lymphatic mapping, she noted.

The radiocolloid lymphazurin first demonstrated superiority over methylene blue in 1990, but alternatives continue to be investigated due to frequent nonavailability and a host of adverse events including blue hives, blue discoloration or tattooing, and anaphylaxis.

Lymphazurin also costs 10-12 times more than methylene blue, which was reflected in the study in an average per patient cost of $815 vs. $75 for methylene blue, Dr. Patel said.

The American Society of Breast Surgeons, however, recommends dual-agent mapping using blue dye and a radioisotope in breast cancer to further improve the success in identifying the sentinel lymph nodes. The improvement is likely because of the dual mechanism at play: radiocolloids become entrapped within the lymph node, whereas certain blue dyes bind to interstitial albumin and are taken up by lymphatics, she explained.

The higher number of sentinel lymph nodes in the methylene blue group may be due to its particle size, which is smaller, weighs less, and diffused faster, Dr. Patel suggested.

The higher number of additional lymph nodes captured with lymphazurin may be because of the higher frequency of nodal dissection in this group than in the methylene blue group (25% vs. 16%).

The finding of greater nodal positivity in the lymphazurin group may be related to mechanism of action or the high percentage of patients with T1 disease enrolled in the study. Still, nodal positivity was higher with lymphazurin than methylene blue regardless of T stage, she said.

The lymphazurin group had higher rates than the methylene blue group of pseudohypoxemia (10% vs. 0%; P less than .0001), but blue hives (1.34% vs. 0%; P = .043) and anaphylaxis (.67% vs. 0%; P = .20) were kept in check. Patients were premedicated and early in the series, the surgeon began excising the area of injected blue skin during the primary surgery, Dr. Patel observed.

Despite being diluted, methylene blue was associated with higher rates of seroma (3.4% vs. 1.7%; P = .005) and skin necrosis (2.55% vs. 9%; P = .005).

Discussant Dr. Alyssa Throckmorton of Baptist Memorial Health Care in Memphis pointed out that more recent data show radiocolloid mapping alone is comparable to dual-agent mapping, suggesting that blue dye may not be needed. That said, there have been national shortages of methylene blue as well as lymphazurin.

“I think in surgeons who are going to use blue dye, with the way drug shortages have become in the last few years, you are going to have to be facile and familiar with both types of dye if you are going to use that as part of your clinical practice,” she said.

 

 

[email protected]

CHICAGO – Two commonly used dyes produced mixed results in sentinel lymph node mapping of early stage breast cancer in what was described as the highest-powered study to date.

The average number of sentinel lymph nodes identified per person was significantly higher with 1% methylene blue dye than with 1% lymphazurin (2.89 vs. 2.22; P less than .001).

Dr. Vaishali Patel

Although there is extensive support for methylene blue as a safe and efficacious alternative to lymphazurin, this finding on the number of sentinel nodes identified is not replicated in any other study, Dr. Vaishali Patel said at the annual clinical congress of the American College of Surgeons. The study was conducted at the McLaren Flint (Mich.) Medical Center. Dr. Sukamal Saha was principal investigator.

On the other hand, lymphazurin identified significantly more additional lymph nodes than methylene blue (mean 4.48 vs. 2.84; P less than .001).

Nodal positivity was also significantly higher with lymphazurin than methylene blue (14.93% vs. 8.85%; P less than .001), which also has not been reported in other trials.

“We think this does offer a true comparison between the two dyes,” Dr. Patel of Detroit Medical Center Sinai-Grace Hospital said. “The volume of dye and technique were consistent for all 651 patients. … with one surgeon performing the injections and one surgeon performing the procedures.” The 651 consecutive patients were randomly assigned based on agent availability to a preoperative injection of lymphazurin (half intraparenchymal and half subareolar in the upper outer quadrant) or an intraoperative injection of methylene blue over 5 minutes (3 ccs intraparenchymal, 1 cc subareolar, and 1 cc intradermal).

The lymphazurin and methylene blue groups were also similar in number (298 patients vs. 353 patients), age (mean 61.6 years vs. 63.5 years), and T stage (in situ 12% vs. 17.8%; T1 64% vs. 65%; T2 23% vs. 17.5%).

In contrast, three smaller, well-established studies that came to different conclusions used four different surgeons and novel techniques to inject their radiocolloid and supervised residents for lymphatic mapping, she noted.

The radiocolloid lymphazurin first demonstrated superiority over methylene blue in 1990, but alternatives continue to be investigated due to frequent nonavailability and a host of adverse events including blue hives, blue discoloration or tattooing, and anaphylaxis.

Lymphazurin also costs 10-12 times more than methylene blue, which was reflected in the study in an average per patient cost of $815 vs. $75 for methylene blue, Dr. Patel said.

The American Society of Breast Surgeons, however, recommends dual-agent mapping using blue dye and a radioisotope in breast cancer to further improve the success in identifying the sentinel lymph nodes. The improvement is likely because of the dual mechanism at play: radiocolloids become entrapped within the lymph node, whereas certain blue dyes bind to interstitial albumin and are taken up by lymphatics, she explained.

The higher number of sentinel lymph nodes in the methylene blue group may be due to its particle size, which is smaller, weighs less, and diffused faster, Dr. Patel suggested.

The higher number of additional lymph nodes captured with lymphazurin may be because of the higher frequency of nodal dissection in this group than in the methylene blue group (25% vs. 16%).

The finding of greater nodal positivity in the lymphazurin group may be related to mechanism of action or the high percentage of patients with T1 disease enrolled in the study. Still, nodal positivity was higher with lymphazurin than methylene blue regardless of T stage, she said.

The lymphazurin group had higher rates than the methylene blue group of pseudohypoxemia (10% vs. 0%; P less than .0001), but blue hives (1.34% vs. 0%; P = .043) and anaphylaxis (.67% vs. 0%; P = .20) were kept in check. Patients were premedicated and early in the series, the surgeon began excising the area of injected blue skin during the primary surgery, Dr. Patel observed.

Despite being diluted, methylene blue was associated with higher rates of seroma (3.4% vs. 1.7%; P = .005) and skin necrosis (2.55% vs. 9%; P = .005).

Discussant Dr. Alyssa Throckmorton of Baptist Memorial Health Care in Memphis pointed out that more recent data show radiocolloid mapping alone is comparable to dual-agent mapping, suggesting that blue dye may not be needed. That said, there have been national shortages of methylene blue as well as lymphazurin.

“I think in surgeons who are going to use blue dye, with the way drug shortages have become in the last few years, you are going to have to be facile and familiar with both types of dye if you are going to use that as part of your clinical practice,” she said.

 

 

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
Die not yet cast for lymphazurin and methylene blue dye
Display Headline
Die not yet cast for lymphazurin and methylene blue dye
Legacy Keywords
breast cancer, lymphatic mapping, sentinel lymph node, methylene blue, lymphazurin, ACS
Legacy Keywords
breast cancer, lymphatic mapping, sentinel lymph node, methylene blue, lymphazurin, ACS
Article Source

AT THE ACS CLINICAL CONGRESS

PURLs Copyright

Inside the Article

Vitals

Key clinical point: Contrary to prior studies, lymph node positivity was higher with lymphazurin than methylene blue in patients with early breast cancer.

Major finding: Nodal positivity was 14.93% with lymphazurin vs. 8.85% with methylene blue (P less than .001).

Data source: Prospective study in 651 patients undergoing lymphatic mapping for breast cancer.

Disclosures: Dr. Patel and Dr. Throckmorton reported having no relevant conflicts.

Gel patch speeds laser tattoo removal

Article Type
Changed
Mon, 01/14/2019 - 09:29
Display Headline
Gel patch speeds laser tattoo removal

CHICAGO – Treating tattoos through a transparent perfluorodecalin-infused gel patch may cut down on the number of laser treatments needed to remove unwanted tattoos, results of a small pilot study suggest.

In 11 of 17 patients, tattoos treated through the perfluorodecalin (PFD) patch showed more rapid clearance of their tattoos compared with conventional treatment with the same 755-nm Q-switched alexandrite laser, Dr. Brian Biesman said at the annual meeting of the American Society for Dermatologic Surgery.

Courtesy ON Light Sciences

There were, however, a wide variety of responses, likely reflecting the heterogeneity of the tattoos themselves, ranging from no difference after many treatment sessions to more than 80% clearance after only two sessions, said Dr. Biesman, who is in private practice in Nashville, Tenn. Perfluorodecalin, a fluorocarbon that enhances oxygen delivery, reduces the epidermal whitening that typically limits Q-switched laser tattoo removal to a single pass. Use of the PFD patch in a prior study resolved whitening within an average of 5 seconds, allowing for three to four laser passes in less than 5 minutes (Lasers Surg Med. 2013 Feb;45[2]:76-80).

The DeScribe Transparent PFD Patch (ON Light Sciences) was approved in the United States in April 2015 for use as an accessory to laser tattoo removal procedures using a 755-nm Q-switched alexandrite laser in Fitzpatrick skin type I-III patients.

Anecdotal evidence presented by Dr. Biesman from his own patients suggests that the PFD patch may also speed tattoo clearance when used with different pulse durations and wavelengths, including 5-nanosecond (1,064 nm, 532 nm, and 650 nm) and picosecond (755 nm, 532 nm, and 1,064 nm) lasers.

Courtesy ON Light Sciences
Tattoo removal results after eight laser treatments through a perfluorodecalin-infused patch (top) and without a patch (bottom).

“It does appear that this patch is efficacious with other Q-switched lasers, both nanosecond and picosecond,” he said, adding that this work is preliminary and under careful study.

The pilot study involved 17 patients with Fitzpatrick skin types I-III and black or blue tattoos treated with a conventional Q-switched alexandrite laser at the maximum tolerable fluence through the PFD patch on one side for three to four passes and with one pass through the air on the other side.

The patch allowed a factor of 1.5-times to 1.8-times higher fluence than control, Dr. Biesman said. In no case did the control side tattoo fade faster than the PFD patch side.

The study was sufficiently powered to qualitatively answer the question of whether the patch could enhance the clearance rate relative to control, but the quantitative rate could not be measured because of the small patient numbers, he noted.

Predictive factors were not identifiable because of the large number of variables, such as tattoo ink, tattoo location, and patient age.

Dr. Brian Biesman

There were no unanticipated adverse events with up to a year of follow-up. Three patients reported three areas of skin hypopigmentation that fully resolved, Dr. Biesman said.

The majority of patients in the pilot study, as well as in a 30-patient pivotal study, reported higher satisfaction with the patch treatment. This seemed to be from a combination of factors, including less discomfort during and after treatment, easier posttreatment recovery, and faster resolution, he said in an interview.

“In our practice, the patch has become the standard of care,” he added. “My nursing staff is highly protective of our patients and will not permit treatment of our patients without the patch. Based on our patients’ objective and subjective experience, I concur.”

Further studies to formally evaluate the performance of the patch in the treatment of benign pigmented lesions and with other Q-switched lasers, using a variety of wavelengths and pulse durations, are currently under consideration.

[email protected]

References

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
tattoo removal, lasers, cosmetic dermatology, American Society for Dermatologic Surgery
Sections
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

CHICAGO – Treating tattoos through a transparent perfluorodecalin-infused gel patch may cut down on the number of laser treatments needed to remove unwanted tattoos, results of a small pilot study suggest.

In 11 of 17 patients, tattoos treated through the perfluorodecalin (PFD) patch showed more rapid clearance of their tattoos compared with conventional treatment with the same 755-nm Q-switched alexandrite laser, Dr. Brian Biesman said at the annual meeting of the American Society for Dermatologic Surgery.

Courtesy ON Light Sciences

There were, however, a wide variety of responses, likely reflecting the heterogeneity of the tattoos themselves, ranging from no difference after many treatment sessions to more than 80% clearance after only two sessions, said Dr. Biesman, who is in private practice in Nashville, Tenn. Perfluorodecalin, a fluorocarbon that enhances oxygen delivery, reduces the epidermal whitening that typically limits Q-switched laser tattoo removal to a single pass. Use of the PFD patch in a prior study resolved whitening within an average of 5 seconds, allowing for three to four laser passes in less than 5 minutes (Lasers Surg Med. 2013 Feb;45[2]:76-80).

The DeScribe Transparent PFD Patch (ON Light Sciences) was approved in the United States in April 2015 for use as an accessory to laser tattoo removal procedures using a 755-nm Q-switched alexandrite laser in Fitzpatrick skin type I-III patients.

Anecdotal evidence presented by Dr. Biesman from his own patients suggests that the PFD patch may also speed tattoo clearance when used with different pulse durations and wavelengths, including 5-nanosecond (1,064 nm, 532 nm, and 650 nm) and picosecond (755 nm, 532 nm, and 1,064 nm) lasers.

Courtesy ON Light Sciences
Tattoo removal results after eight laser treatments through a perfluorodecalin-infused patch (top) and without a patch (bottom).

“It does appear that this patch is efficacious with other Q-switched lasers, both nanosecond and picosecond,” he said, adding that this work is preliminary and under careful study.

The pilot study involved 17 patients with Fitzpatrick skin types I-III and black or blue tattoos treated with a conventional Q-switched alexandrite laser at the maximum tolerable fluence through the PFD patch on one side for three to four passes and with one pass through the air on the other side.

The patch allowed a factor of 1.5-times to 1.8-times higher fluence than control, Dr. Biesman said. In no case did the control side tattoo fade faster than the PFD patch side.

The study was sufficiently powered to qualitatively answer the question of whether the patch could enhance the clearance rate relative to control, but the quantitative rate could not be measured because of the small patient numbers, he noted.

Predictive factors were not identifiable because of the large number of variables, such as tattoo ink, tattoo location, and patient age.

Dr. Brian Biesman

There were no unanticipated adverse events with up to a year of follow-up. Three patients reported three areas of skin hypopigmentation that fully resolved, Dr. Biesman said.

The majority of patients in the pilot study, as well as in a 30-patient pivotal study, reported higher satisfaction with the patch treatment. This seemed to be from a combination of factors, including less discomfort during and after treatment, easier posttreatment recovery, and faster resolution, he said in an interview.

“In our practice, the patch has become the standard of care,” he added. “My nursing staff is highly protective of our patients and will not permit treatment of our patients without the patch. Based on our patients’ objective and subjective experience, I concur.”

Further studies to formally evaluate the performance of the patch in the treatment of benign pigmented lesions and with other Q-switched lasers, using a variety of wavelengths and pulse durations, are currently under consideration.

[email protected]

CHICAGO – Treating tattoos through a transparent perfluorodecalin-infused gel patch may cut down on the number of laser treatments needed to remove unwanted tattoos, results of a small pilot study suggest.

In 11 of 17 patients, tattoos treated through the perfluorodecalin (PFD) patch showed more rapid clearance of their tattoos compared with conventional treatment with the same 755-nm Q-switched alexandrite laser, Dr. Brian Biesman said at the annual meeting of the American Society for Dermatologic Surgery.

Courtesy ON Light Sciences

There were, however, a wide variety of responses, likely reflecting the heterogeneity of the tattoos themselves, ranging from no difference after many treatment sessions to more than 80% clearance after only two sessions, said Dr. Biesman, who is in private practice in Nashville, Tenn. Perfluorodecalin, a fluorocarbon that enhances oxygen delivery, reduces the epidermal whitening that typically limits Q-switched laser tattoo removal to a single pass. Use of the PFD patch in a prior study resolved whitening within an average of 5 seconds, allowing for three to four laser passes in less than 5 minutes (Lasers Surg Med. 2013 Feb;45[2]:76-80).

The DeScribe Transparent PFD Patch (ON Light Sciences) was approved in the United States in April 2015 for use as an accessory to laser tattoo removal procedures using a 755-nm Q-switched alexandrite laser in Fitzpatrick skin type I-III patients.

Anecdotal evidence presented by Dr. Biesman from his own patients suggests that the PFD patch may also speed tattoo clearance when used with different pulse durations and wavelengths, including 5-nanosecond (1,064 nm, 532 nm, and 650 nm) and picosecond (755 nm, 532 nm, and 1,064 nm) lasers.

Courtesy ON Light Sciences
Tattoo removal results after eight laser treatments through a perfluorodecalin-infused patch (top) and without a patch (bottom).

“It does appear that this patch is efficacious with other Q-switched lasers, both nanosecond and picosecond,” he said, adding that this work is preliminary and under careful study.

The pilot study involved 17 patients with Fitzpatrick skin types I-III and black or blue tattoos treated with a conventional Q-switched alexandrite laser at the maximum tolerable fluence through the PFD patch on one side for three to four passes and with one pass through the air on the other side.

The patch allowed a factor of 1.5-times to 1.8-times higher fluence than control, Dr. Biesman said. In no case did the control side tattoo fade faster than the PFD patch side.

The study was sufficiently powered to qualitatively answer the question of whether the patch could enhance the clearance rate relative to control, but the quantitative rate could not be measured because of the small patient numbers, he noted.

Predictive factors were not identifiable because of the large number of variables, such as tattoo ink, tattoo location, and patient age.

Dr. Brian Biesman

There were no unanticipated adverse events with up to a year of follow-up. Three patients reported three areas of skin hypopigmentation that fully resolved, Dr. Biesman said.

The majority of patients in the pilot study, as well as in a 30-patient pivotal study, reported higher satisfaction with the patch treatment. This seemed to be from a combination of factors, including less discomfort during and after treatment, easier posttreatment recovery, and faster resolution, he said in an interview.

“In our practice, the patch has become the standard of care,” he added. “My nursing staff is highly protective of our patients and will not permit treatment of our patients without the patch. Based on our patients’ objective and subjective experience, I concur.”

Further studies to formally evaluate the performance of the patch in the treatment of benign pigmented lesions and with other Q-switched lasers, using a variety of wavelengths and pulse durations, are currently under consideration.

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
Gel patch speeds laser tattoo removal
Display Headline
Gel patch speeds laser tattoo removal
Legacy Keywords
tattoo removal, lasers, cosmetic dermatology, American Society for Dermatologic Surgery
Legacy Keywords
tattoo removal, lasers, cosmetic dermatology, American Society for Dermatologic Surgery
Sections
Article Source

AT THE ASDS ANNUAL MEETING

PURLs Copyright

Inside the Article

Vitals

Key clinical point: A transparent perfluorodecalin-infused patch allows for more rapid, multipass laser tattoo removal.

Major finding: Tattoo clearance was accelerated with the PFD patch in 11 of 17 patients.

Data source: A split-skin pilot study comparing results of laser treatments with and without the patch in 17 patients with black or blue tattoos.

Disclosures: Dr. Biesman reported being a shareholder of ON Light Sciences, the study sponsor and manufacturer of the PFD patch.

Phone-based intervention helps drain sugary drinks from preschoolers’ diet

Article Type
Changed
Fri, 01/18/2019 - 15:28
Display Headline
Phone-based intervention helps drain sugary drinks from preschoolers’ diet

LOS ANGELES – A mobile phone–based intervention targeting both maternal and child behavior significantly cut sugar-sweetened drink consumption in preschoolers and prompted modest weight loss in Moms.

After just 3 months, the children reduced their daily intake of sugar-sweetened beverages (SSB) by 10 fluid ounces, compared with 3.2 ounces for controls, while their mothers lost 2.6% of their body weight vs. a gain of 1.4% for controls.

Patrice Wendling/Frontline Medical News
Brooke Nezami

Both outcomes were statistically significant in regression analysis, after adjusting for child age and baseline SSB intake (P = .02) and for maternal age and race (P = .003).

On the surface, 10 fluid ounces may not sound like a lot, but at study entry these 3- to 5-year-old North Carolinian preschoolers were already consuming at least 12 ounces per day of SSBs such as 100% fruit juice, fruit drinks, sweetened tea, flavored milks, sports/energy drinks, and sodas.

“Sugar-sweetened beverages really stand out as one of the drivers of excessive weight gain in early childhood and 10 ounces is a lot for kids,” study author Ms. Brooke Nezami of the University of North Carolina in Chapel Hill, said in an interview at Obesity Week 2015. “The American Academy of Pediatrics says a serving of 100 percent fruit juice is 4 to 6 ounces, so that’s over 2 servings a day.”

Targeting mothers as the agent of change to improve child dietary behaviors may help them make healthy choices and lose weight, but getting busy moms to participate has been a huge hurdle for traditional interventions.

The Smart Moms intervention sought to reduce child SSB intake to one serving per day using 12 weekly and six bi-weekly website lessons, developed based on social cognitive theory. Children’s consumption of SSBs and mothers’ caloric beverages, high-calorie “red” foods from the Traffic Light Diet, and weight were monitored daily, with totals submitted weekly via text, Ms. Nezami, of the University of North Carolina at Chapel Hill, reported.

The mothers, who had a body mass index (BMI) of 25 kg/m2 to 50 kg/m2 at enrollment, were asked to reduce their intake of caloric beverages to less than 8 ounces per day, reduce intake of “red” foods, and to weigh themselves daily. They attended only one group meeting and then received text messages three to four times per week with tips, motivational messages, and self-monitoring prompts and 12 weekly and 6 biweekly emails with personalized feedback on their progress.

The 51 mothers and 51 children, recruited from the community, also completed in-person and on-line assessments at baseline, 3 months, and 6 months. The 6-month data are to be reported at a meeting next year.

At baseline, children in the Smart Moms intervention and wait-list control groups had an average age of 4.5 years; 40.7% vs. 58.3%, respectively, were boys; 18.5% vs. 29.2% were overweight or obese; and they consumed 15.3 ounces vs. 12.5 ounces of SSBs per day.

Mothers in the intervention and control groups had an average age of 36 years; average BMI of 33.1 kg/m2 vs. 32 kg/m2, respectively; 74% vs. 65% had an annual income of more than $75,000; and 92.6% vs. 87.5% were married.

At 3 months, daily calories from beverages declined from 252 to 131.5 among women using the intervention and rose from 169.5 to 216.7 among controls, Ms. Nezami reported in the award-winning poster.

Moms using the intervention cut their total daily calories from 1,865 to 1,569 at 3 months, compared with a small increase from 1,750 to 1,805 for controls. The differences for both outcomes were not statistically significant.

Child BMI-z scores declined from 0.30 to 0.27 with the intervention and from 0.49 to 0.45 among controls, but the difference was not significant.

Adherence to the mobile intervention remained strong at 3 months, with an average of 11 of 12 weekly self-monitoring reports and 11 of 12 weekly goal progress assessments completed, Ms. Nezami said.

“This low-burden, mobile-delivered intervention has the potential for widespread dissemination and could be an effective way to change weight-related behaviors in preschool-age children and their parents,” she concluded at the meeting, presented by the Obesity Society and American Society for Metabolic and Bariatric Surgery.

That said, some mothers may need additional encouragement from health care providers to recognize that early childhood is an opportune time to promote healthy eating habits and to reduce SSB intake.

“Most moms in the study when I presented them with the information on the risk of sugar-sweetened beverages and the calories their child was consuming from beverages were like, ‘Wow, this is something I need to change,’ ” she said. “But some participants didn’t necessarily feel at the end of it all that changing their child’s diet was as important as changing their own because they feel they’re young, they’ve still got time to create healthy diets of their own.”

 

 

The study was funded by the Gillings Dissertation Award from the University of North Carolina at Chapel Hill. Ms. Nezami reported having no conflicts of interest.

[email protected]

References

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
obesity, preschool obesity, sugar-sweetened drinks, phone-based weight loss, Obesity Week
Sections
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

LOS ANGELES – A mobile phone–based intervention targeting both maternal and child behavior significantly cut sugar-sweetened drink consumption in preschoolers and prompted modest weight loss in Moms.

After just 3 months, the children reduced their daily intake of sugar-sweetened beverages (SSB) by 10 fluid ounces, compared with 3.2 ounces for controls, while their mothers lost 2.6% of their body weight vs. a gain of 1.4% for controls.

Patrice Wendling/Frontline Medical News
Brooke Nezami

Both outcomes were statistically significant in regression analysis, after adjusting for child age and baseline SSB intake (P = .02) and for maternal age and race (P = .003).

On the surface, 10 fluid ounces may not sound like a lot, but at study entry these 3- to 5-year-old North Carolinian preschoolers were already consuming at least 12 ounces per day of SSBs such as 100% fruit juice, fruit drinks, sweetened tea, flavored milks, sports/energy drinks, and sodas.

“Sugar-sweetened beverages really stand out as one of the drivers of excessive weight gain in early childhood and 10 ounces is a lot for kids,” study author Ms. Brooke Nezami of the University of North Carolina in Chapel Hill, said in an interview at Obesity Week 2015. “The American Academy of Pediatrics says a serving of 100 percent fruit juice is 4 to 6 ounces, so that’s over 2 servings a day.”

Targeting mothers as the agent of change to improve child dietary behaviors may help them make healthy choices and lose weight, but getting busy moms to participate has been a huge hurdle for traditional interventions.

The Smart Moms intervention sought to reduce child SSB intake to one serving per day using 12 weekly and six bi-weekly website lessons, developed based on social cognitive theory. Children’s consumption of SSBs and mothers’ caloric beverages, high-calorie “red” foods from the Traffic Light Diet, and weight were monitored daily, with totals submitted weekly via text, Ms. Nezami, of the University of North Carolina at Chapel Hill, reported.

The mothers, who had a body mass index (BMI) of 25 kg/m2 to 50 kg/m2 at enrollment, were asked to reduce their intake of caloric beverages to less than 8 ounces per day, reduce intake of “red” foods, and to weigh themselves daily. They attended only one group meeting and then received text messages three to four times per week with tips, motivational messages, and self-monitoring prompts and 12 weekly and 6 biweekly emails with personalized feedback on their progress.

The 51 mothers and 51 children, recruited from the community, also completed in-person and on-line assessments at baseline, 3 months, and 6 months. The 6-month data are to be reported at a meeting next year.

At baseline, children in the Smart Moms intervention and wait-list control groups had an average age of 4.5 years; 40.7% vs. 58.3%, respectively, were boys; 18.5% vs. 29.2% were overweight or obese; and they consumed 15.3 ounces vs. 12.5 ounces of SSBs per day.

Mothers in the intervention and control groups had an average age of 36 years; average BMI of 33.1 kg/m2 vs. 32 kg/m2, respectively; 74% vs. 65% had an annual income of more than $75,000; and 92.6% vs. 87.5% were married.

At 3 months, daily calories from beverages declined from 252 to 131.5 among women using the intervention and rose from 169.5 to 216.7 among controls, Ms. Nezami reported in the award-winning poster.

Moms using the intervention cut their total daily calories from 1,865 to 1,569 at 3 months, compared with a small increase from 1,750 to 1,805 for controls. The differences for both outcomes were not statistically significant.

Child BMI-z scores declined from 0.30 to 0.27 with the intervention and from 0.49 to 0.45 among controls, but the difference was not significant.

Adherence to the mobile intervention remained strong at 3 months, with an average of 11 of 12 weekly self-monitoring reports and 11 of 12 weekly goal progress assessments completed, Ms. Nezami said.

“This low-burden, mobile-delivered intervention has the potential for widespread dissemination and could be an effective way to change weight-related behaviors in preschool-age children and their parents,” she concluded at the meeting, presented by the Obesity Society and American Society for Metabolic and Bariatric Surgery.

That said, some mothers may need additional encouragement from health care providers to recognize that early childhood is an opportune time to promote healthy eating habits and to reduce SSB intake.

“Most moms in the study when I presented them with the information on the risk of sugar-sweetened beverages and the calories their child was consuming from beverages were like, ‘Wow, this is something I need to change,’ ” she said. “But some participants didn’t necessarily feel at the end of it all that changing their child’s diet was as important as changing their own because they feel they’re young, they’ve still got time to create healthy diets of their own.”

 

 

The study was funded by the Gillings Dissertation Award from the University of North Carolina at Chapel Hill. Ms. Nezami reported having no conflicts of interest.

[email protected]

LOS ANGELES – A mobile phone–based intervention targeting both maternal and child behavior significantly cut sugar-sweetened drink consumption in preschoolers and prompted modest weight loss in Moms.

After just 3 months, the children reduced their daily intake of sugar-sweetened beverages (SSB) by 10 fluid ounces, compared with 3.2 ounces for controls, while their mothers lost 2.6% of their body weight vs. a gain of 1.4% for controls.

Patrice Wendling/Frontline Medical News
Brooke Nezami

Both outcomes were statistically significant in regression analysis, after adjusting for child age and baseline SSB intake (P = .02) and for maternal age and race (P = .003).

On the surface, 10 fluid ounces may not sound like a lot, but at study entry these 3- to 5-year-old North Carolinian preschoolers were already consuming at least 12 ounces per day of SSBs such as 100% fruit juice, fruit drinks, sweetened tea, flavored milks, sports/energy drinks, and sodas.

“Sugar-sweetened beverages really stand out as one of the drivers of excessive weight gain in early childhood and 10 ounces is a lot for kids,” study author Ms. Brooke Nezami of the University of North Carolina in Chapel Hill, said in an interview at Obesity Week 2015. “The American Academy of Pediatrics says a serving of 100 percent fruit juice is 4 to 6 ounces, so that’s over 2 servings a day.”

Targeting mothers as the agent of change to improve child dietary behaviors may help them make healthy choices and lose weight, but getting busy moms to participate has been a huge hurdle for traditional interventions.

The Smart Moms intervention sought to reduce child SSB intake to one serving per day using 12 weekly and six bi-weekly website lessons, developed based on social cognitive theory. Children’s consumption of SSBs and mothers’ caloric beverages, high-calorie “red” foods from the Traffic Light Diet, and weight were monitored daily, with totals submitted weekly via text, Ms. Nezami, of the University of North Carolina at Chapel Hill, reported.

The mothers, who had a body mass index (BMI) of 25 kg/m2 to 50 kg/m2 at enrollment, were asked to reduce their intake of caloric beverages to less than 8 ounces per day, reduce intake of “red” foods, and to weigh themselves daily. They attended only one group meeting and then received text messages three to four times per week with tips, motivational messages, and self-monitoring prompts and 12 weekly and 6 biweekly emails with personalized feedback on their progress.

The 51 mothers and 51 children, recruited from the community, also completed in-person and on-line assessments at baseline, 3 months, and 6 months. The 6-month data are to be reported at a meeting next year.

At baseline, children in the Smart Moms intervention and wait-list control groups had an average age of 4.5 years; 40.7% vs. 58.3%, respectively, were boys; 18.5% vs. 29.2% were overweight or obese; and they consumed 15.3 ounces vs. 12.5 ounces of SSBs per day.

Mothers in the intervention and control groups had an average age of 36 years; average BMI of 33.1 kg/m2 vs. 32 kg/m2, respectively; 74% vs. 65% had an annual income of more than $75,000; and 92.6% vs. 87.5% were married.

At 3 months, daily calories from beverages declined from 252 to 131.5 among women using the intervention and rose from 169.5 to 216.7 among controls, Ms. Nezami reported in the award-winning poster.

Moms using the intervention cut their total daily calories from 1,865 to 1,569 at 3 months, compared with a small increase from 1,750 to 1,805 for controls. The differences for both outcomes were not statistically significant.

Child BMI-z scores declined from 0.30 to 0.27 with the intervention and from 0.49 to 0.45 among controls, but the difference was not significant.

Adherence to the mobile intervention remained strong at 3 months, with an average of 11 of 12 weekly self-monitoring reports and 11 of 12 weekly goal progress assessments completed, Ms. Nezami said.

“This low-burden, mobile-delivered intervention has the potential for widespread dissemination and could be an effective way to change weight-related behaviors in preschool-age children and their parents,” she concluded at the meeting, presented by the Obesity Society and American Society for Metabolic and Bariatric Surgery.

That said, some mothers may need additional encouragement from health care providers to recognize that early childhood is an opportune time to promote healthy eating habits and to reduce SSB intake.

“Most moms in the study when I presented them with the information on the risk of sugar-sweetened beverages and the calories their child was consuming from beverages were like, ‘Wow, this is something I need to change,’ ” she said. “But some participants didn’t necessarily feel at the end of it all that changing their child’s diet was as important as changing their own because they feel they’re young, they’ve still got time to create healthy diets of their own.”

 

 

The study was funded by the Gillings Dissertation Award from the University of North Carolina at Chapel Hill. Ms. Nezami reported having no conflicts of interest.

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
Phone-based intervention helps drain sugary drinks from preschoolers’ diet
Display Headline
Phone-based intervention helps drain sugary drinks from preschoolers’ diet
Legacy Keywords
obesity, preschool obesity, sugar-sweetened drinks, phone-based weight loss, Obesity Week
Legacy Keywords
obesity, preschool obesity, sugar-sweetened drinks, phone-based weight loss, Obesity Week
Sections
Article Source

AT OBESITY WEEK 2015

PURLs Copyright

Inside the Article

Vitals

Key clinical point: A smartphone intervention targeting maternal and child behavior can be effective in engaging mothers to participate, reduce their children’s sugar-sweetened beverage consumption, and reduce maternal weight.

Major finding: Daily sugar-sweetened beverage consumption was significantly reduced with the mobile intervention vs. controls (10 oz. vs. 3.2 oz; adjusted P = .02).

Data source: Prospective, randomized study in 51 mother-child dyads.

Disclosures: The study was funded by the Gillings Dissertation Award from the University of North Carolina at Chapel Hill. Ms. Nezami reported having no conflicts of interest.

Dermatologists’ management of melanoma varies

Article Type
Changed
Mon, 01/14/2019 - 09:28
Display Headline
Dermatologists’ management of melanoma varies

CHICAGO – Significant variance exists in management of primary cutaneous melanoma, according to a national survey of 510 dermatologists.

Most dermatologists (36%) preferred a shave biopsy for lesions suspected of being melanoma, despite guidelines from the American Academy of Dermatology (AAD) and National Comprehensive Cancer Network (NCCN) guidelines that recommend narrow excision biopsy.

©The National Cancer Institute

In all, 31% of dermatologists used a narrow local excision (less than 5 mm margin), 13% saucerization/scoop shave biopsy, 11%, punch biopsy, 3% wide local excision, and 7% other.

“The guidelines and academy are all very clear that one of the goals of the biopsy is to obtain tumor depth, so we were surprised that a significant number of providers use shave biopsy or other methods that may leave a risk of not getting the correct depth,” study co-author Dr. Aaron S. Farberg, a melanoma clinical research fellow at the National Society for Cutaneous Medicine in New York City, said in an interview.

Notably, dermatologists in academic and dermatology-based group practices were significantly less likely than those in multispecialty or solo practice to use narrow excision (23% vs. 42%; P < .001).

Although treatment for melanoma evolves continuously, the authors observed that dermatologists remain at the forefront of melanoma management and play a critical role in patient decision making.

“This study suggests that a knowledge gap may exist representing an educational opportunity to more effectively disseminate and implement recommended approaches,” Dr. Farberg and Dr. Darrell Rigel, of New York University School of Medicine, reported in a poster presentation at the annual meeting of the American Society for Dermatologic Surgery.

The survey also revealed that dermatologists are going beyond suggested surgical margins when excising melanoma.

For malignant melanoma in situ (MMIS), 62% used a 5 mm or less margin, 36% a 6 mm to 10 mm margin, and 2% a 1.1 cm to 1.9 cm margin. For these lesions, the AAD recommends a 0.5 cm-1 cm (5 mm-10 mm) margin and the NCCN a 0.5 cm margin, Drs. Farber and Rigel reported.

Academic dermatologists were significantly more likely than all other practice types to refer patients with MMIS out for excision (18% vs. 10%; P < .05).

For invasive melanoma less than 1 mm in depth, both the AAD and NCCN recommend a 1 cm margin (10 mm). In all, 61% of dermatologists reported using 6 mm to 10 mm margins, with 34% opting for 1.1 cm to 1.9 cm margins, 3% at least 2 cm margins, and 2% no more than 5 mm margins.

No significant difference was found across provider types for treatment of melanomas less than 1 mm in depth.

For invasive melanoma greater than 1 mm in depth, 54% of respondents used 1.1 cm to 1.9 cm margins, with most (67%) referring the patient to another provider. Both national guidelines recommend 1 cm to 2 cm margins for melanomas 1 mm to 2 mm in depth and 2 cm margins for melanoma greater than 2 mm in depth.

Academic dermatologists were significantly more likely than other dermatologists to treat these lesions rather than to refer the patient out (51% vs. 30%; P < .001).

“This is exciting new data that suggests that there still is a variance in early melanoma management,” Dr. Rigel, past president of AAD and ASDS, said in an interview. “The data suggest more studies need to be done to better access why this is occurring.”

Dr. Hensin Tsao, who served on the 2011 AAD guideline working group and is co-chairing the AAD’s pending guideline update, said in an interview that, “Dr. Rigel is well respected in the field and the project will undoubtedly be submitted for publication and subject to further review. It is worthwhile to wait on the final published results and conclusions.”

He agreed, however, with the authors’ suggestion that there is significant variation in practice. Regarding the finding that 36% of respondents use a shave biopsy for suspicious lesions, the AAD guidelines recommend that the entire lesion be removed with a 1 mm to 3 mm margin, which can be accomplished by an elliptical or punch excision with sutures or shave removal to a depth below the anticipated plane of the lesion, Dr. Tsao, of Massachusetts General Hospital in Boston, said.

“It is quite possible that some of the respondents to the questionnaire interpreted ‘shave biopsy’ as a full shave disk excision,” he said. “That said, intentional and routine partial sampling of suspected melanomas would be at odds with the guidelines.”

It is not inappropriate to remove a suspicious lesion, if small enough, with a punch biopsy, Dr. Tsao said, adding, “Perhaps again, the respondents failed to distinguish between partial punch biopsy and punch excision.”

 

 

On occasion, the AAD guidelines also make accommodations for an incisional biopsy “of the clinically or dermatoscopically most atypical portion of the lesion.” In this situation, a smaller incisional punch biopsy may be performed of the highly suspicious area.

“There are certainly areas that the investigators have identified which could represent potential knowledge gaps,” Dr. Tsao said. “For instance, 14% of the respondents used a 0.6 cm to 1.0 cm (6 mm-10 mm) margin for melanoma greater than 1 mm.”

Dermatologists’ surveillance of patients in the survey was somewhat less divergent. The most recommended follow-up interval for patients diagnosed within the last 5 years, was 6 months (49%), followed by a 3-month interval (25%), and other (24%). Follow-up was extended to yearly by 63% of dermatologists for patients diagnosed more than five years earlier, Dr. Farberg and Dr. Rigel reported.

Both the AAD and NCCN recommend follow-up every 3 to 12 months for those diagnosed with melanoma within the previous 5 years, while for those diagnosed more than 5 years prior, the AAD recommends follow-up every 3 to 12 months and the NCCN every 12 months.

“Adherence to evidence-based guidelines should lead to improved patient outcomes and quality of care. However, newer studies and emerging data may also justify deviations from existing guidelines, suggesting review of those guidelines may be indicated,” Dr. Farberg and Dr. Rigel concluded.

For example, a prospective series examining surgical margins in 1,072 patients with 1,120 malignant melanoma in situs showed that only 86% were successfully excised with a 6-mm margin, significantly less than the 98.9% clearance achieved with a 9-mm margin, Dr. Farberg told this publication.

That said, a 9-mm margin may not be appropriate for all lesions, such as those on the face, he observed.

The investigators said they hope the survey results will spur on revision of the guidelines, last updated in 2011.

Limitations of the survey include a lack of information on clinical factors such as patient history or anatomic site, the survey may have led to generalized answers, and access to care and reimbursement also may have impacted management, the authors noted.

The response rate to the survey was also low at 8%, with 6,177 practicing U.S. dermatologists surveyed. The demographics of the respondents, however, strongly reflected the full AAD membership, Dr. Farberg said. No significant geographical differences were observed.

[email protected]

References

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
melanoma management, margins, excision, dermatologists, AADS
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

CHICAGO – Significant variance exists in management of primary cutaneous melanoma, according to a national survey of 510 dermatologists.

Most dermatologists (36%) preferred a shave biopsy for lesions suspected of being melanoma, despite guidelines from the American Academy of Dermatology (AAD) and National Comprehensive Cancer Network (NCCN) guidelines that recommend narrow excision biopsy.

©The National Cancer Institute

In all, 31% of dermatologists used a narrow local excision (less than 5 mm margin), 13% saucerization/scoop shave biopsy, 11%, punch biopsy, 3% wide local excision, and 7% other.

“The guidelines and academy are all very clear that one of the goals of the biopsy is to obtain tumor depth, so we were surprised that a significant number of providers use shave biopsy or other methods that may leave a risk of not getting the correct depth,” study co-author Dr. Aaron S. Farberg, a melanoma clinical research fellow at the National Society for Cutaneous Medicine in New York City, said in an interview.

Notably, dermatologists in academic and dermatology-based group practices were significantly less likely than those in multispecialty or solo practice to use narrow excision (23% vs. 42%; P < .001).

Although treatment for melanoma evolves continuously, the authors observed that dermatologists remain at the forefront of melanoma management and play a critical role in patient decision making.

“This study suggests that a knowledge gap may exist representing an educational opportunity to more effectively disseminate and implement recommended approaches,” Dr. Farberg and Dr. Darrell Rigel, of New York University School of Medicine, reported in a poster presentation at the annual meeting of the American Society for Dermatologic Surgery.

The survey also revealed that dermatologists are going beyond suggested surgical margins when excising melanoma.

For malignant melanoma in situ (MMIS), 62% used a 5 mm or less margin, 36% a 6 mm to 10 mm margin, and 2% a 1.1 cm to 1.9 cm margin. For these lesions, the AAD recommends a 0.5 cm-1 cm (5 mm-10 mm) margin and the NCCN a 0.5 cm margin, Drs. Farber and Rigel reported.

Academic dermatologists were significantly more likely than all other practice types to refer patients with MMIS out for excision (18% vs. 10%; P < .05).

For invasive melanoma less than 1 mm in depth, both the AAD and NCCN recommend a 1 cm margin (10 mm). In all, 61% of dermatologists reported using 6 mm to 10 mm margins, with 34% opting for 1.1 cm to 1.9 cm margins, 3% at least 2 cm margins, and 2% no more than 5 mm margins.

No significant difference was found across provider types for treatment of melanomas less than 1 mm in depth.

For invasive melanoma greater than 1 mm in depth, 54% of respondents used 1.1 cm to 1.9 cm margins, with most (67%) referring the patient to another provider. Both national guidelines recommend 1 cm to 2 cm margins for melanomas 1 mm to 2 mm in depth and 2 cm margins for melanoma greater than 2 mm in depth.

Academic dermatologists were significantly more likely than other dermatologists to treat these lesions rather than to refer the patient out (51% vs. 30%; P < .001).

“This is exciting new data that suggests that there still is a variance in early melanoma management,” Dr. Rigel, past president of AAD and ASDS, said in an interview. “The data suggest more studies need to be done to better access why this is occurring.”

Dr. Hensin Tsao, who served on the 2011 AAD guideline working group and is co-chairing the AAD’s pending guideline update, said in an interview that, “Dr. Rigel is well respected in the field and the project will undoubtedly be submitted for publication and subject to further review. It is worthwhile to wait on the final published results and conclusions.”

He agreed, however, with the authors’ suggestion that there is significant variation in practice. Regarding the finding that 36% of respondents use a shave biopsy for suspicious lesions, the AAD guidelines recommend that the entire lesion be removed with a 1 mm to 3 mm margin, which can be accomplished by an elliptical or punch excision with sutures or shave removal to a depth below the anticipated plane of the lesion, Dr. Tsao, of Massachusetts General Hospital in Boston, said.

“It is quite possible that some of the respondents to the questionnaire interpreted ‘shave biopsy’ as a full shave disk excision,” he said. “That said, intentional and routine partial sampling of suspected melanomas would be at odds with the guidelines.”

It is not inappropriate to remove a suspicious lesion, if small enough, with a punch biopsy, Dr. Tsao said, adding, “Perhaps again, the respondents failed to distinguish between partial punch biopsy and punch excision.”

 

 

On occasion, the AAD guidelines also make accommodations for an incisional biopsy “of the clinically or dermatoscopically most atypical portion of the lesion.” In this situation, a smaller incisional punch biopsy may be performed of the highly suspicious area.

“There are certainly areas that the investigators have identified which could represent potential knowledge gaps,” Dr. Tsao said. “For instance, 14% of the respondents used a 0.6 cm to 1.0 cm (6 mm-10 mm) margin for melanoma greater than 1 mm.”

Dermatologists’ surveillance of patients in the survey was somewhat less divergent. The most recommended follow-up interval for patients diagnosed within the last 5 years, was 6 months (49%), followed by a 3-month interval (25%), and other (24%). Follow-up was extended to yearly by 63% of dermatologists for patients diagnosed more than five years earlier, Dr. Farberg and Dr. Rigel reported.

Both the AAD and NCCN recommend follow-up every 3 to 12 months for those diagnosed with melanoma within the previous 5 years, while for those diagnosed more than 5 years prior, the AAD recommends follow-up every 3 to 12 months and the NCCN every 12 months.

“Adherence to evidence-based guidelines should lead to improved patient outcomes and quality of care. However, newer studies and emerging data may also justify deviations from existing guidelines, suggesting review of those guidelines may be indicated,” Dr. Farberg and Dr. Rigel concluded.

For example, a prospective series examining surgical margins in 1,072 patients with 1,120 malignant melanoma in situs showed that only 86% were successfully excised with a 6-mm margin, significantly less than the 98.9% clearance achieved with a 9-mm margin, Dr. Farberg told this publication.

That said, a 9-mm margin may not be appropriate for all lesions, such as those on the face, he observed.

The investigators said they hope the survey results will spur on revision of the guidelines, last updated in 2011.

Limitations of the survey include a lack of information on clinical factors such as patient history or anatomic site, the survey may have led to generalized answers, and access to care and reimbursement also may have impacted management, the authors noted.

The response rate to the survey was also low at 8%, with 6,177 practicing U.S. dermatologists surveyed. The demographics of the respondents, however, strongly reflected the full AAD membership, Dr. Farberg said. No significant geographical differences were observed.

[email protected]

CHICAGO – Significant variance exists in management of primary cutaneous melanoma, according to a national survey of 510 dermatologists.

Most dermatologists (36%) preferred a shave biopsy for lesions suspected of being melanoma, despite guidelines from the American Academy of Dermatology (AAD) and National Comprehensive Cancer Network (NCCN) guidelines that recommend narrow excision biopsy.

©The National Cancer Institute

In all, 31% of dermatologists used a narrow local excision (less than 5 mm margin), 13% saucerization/scoop shave biopsy, 11%, punch biopsy, 3% wide local excision, and 7% other.

“The guidelines and academy are all very clear that one of the goals of the biopsy is to obtain tumor depth, so we were surprised that a significant number of providers use shave biopsy or other methods that may leave a risk of not getting the correct depth,” study co-author Dr. Aaron S. Farberg, a melanoma clinical research fellow at the National Society for Cutaneous Medicine in New York City, said in an interview.

Notably, dermatologists in academic and dermatology-based group practices were significantly less likely than those in multispecialty or solo practice to use narrow excision (23% vs. 42%; P < .001).

Although treatment for melanoma evolves continuously, the authors observed that dermatologists remain at the forefront of melanoma management and play a critical role in patient decision making.

“This study suggests that a knowledge gap may exist representing an educational opportunity to more effectively disseminate and implement recommended approaches,” Dr. Farberg and Dr. Darrell Rigel, of New York University School of Medicine, reported in a poster presentation at the annual meeting of the American Society for Dermatologic Surgery.

The survey also revealed that dermatologists are going beyond suggested surgical margins when excising melanoma.

For malignant melanoma in situ (MMIS), 62% used a 5 mm or less margin, 36% a 6 mm to 10 mm margin, and 2% a 1.1 cm to 1.9 cm margin. For these lesions, the AAD recommends a 0.5 cm-1 cm (5 mm-10 mm) margin and the NCCN a 0.5 cm margin, Drs. Farber and Rigel reported.

Academic dermatologists were significantly more likely than all other practice types to refer patients with MMIS out for excision (18% vs. 10%; P < .05).

For invasive melanoma less than 1 mm in depth, both the AAD and NCCN recommend a 1 cm margin (10 mm). In all, 61% of dermatologists reported using 6 mm to 10 mm margins, with 34% opting for 1.1 cm to 1.9 cm margins, 3% at least 2 cm margins, and 2% no more than 5 mm margins.

No significant difference was found across provider types for treatment of melanomas less than 1 mm in depth.

For invasive melanoma greater than 1 mm in depth, 54% of respondents used 1.1 cm to 1.9 cm margins, with most (67%) referring the patient to another provider. Both national guidelines recommend 1 cm to 2 cm margins for melanomas 1 mm to 2 mm in depth and 2 cm margins for melanoma greater than 2 mm in depth.

Academic dermatologists were significantly more likely than other dermatologists to treat these lesions rather than to refer the patient out (51% vs. 30%; P < .001).

“This is exciting new data that suggests that there still is a variance in early melanoma management,” Dr. Rigel, past president of AAD and ASDS, said in an interview. “The data suggest more studies need to be done to better access why this is occurring.”

Dr. Hensin Tsao, who served on the 2011 AAD guideline working group and is co-chairing the AAD’s pending guideline update, said in an interview that, “Dr. Rigel is well respected in the field and the project will undoubtedly be submitted for publication and subject to further review. It is worthwhile to wait on the final published results and conclusions.”

He agreed, however, with the authors’ suggestion that there is significant variation in practice. Regarding the finding that 36% of respondents use a shave biopsy for suspicious lesions, the AAD guidelines recommend that the entire lesion be removed with a 1 mm to 3 mm margin, which can be accomplished by an elliptical or punch excision with sutures or shave removal to a depth below the anticipated plane of the lesion, Dr. Tsao, of Massachusetts General Hospital in Boston, said.

“It is quite possible that some of the respondents to the questionnaire interpreted ‘shave biopsy’ as a full shave disk excision,” he said. “That said, intentional and routine partial sampling of suspected melanomas would be at odds with the guidelines.”

It is not inappropriate to remove a suspicious lesion, if small enough, with a punch biopsy, Dr. Tsao said, adding, “Perhaps again, the respondents failed to distinguish between partial punch biopsy and punch excision.”

 

 

On occasion, the AAD guidelines also make accommodations for an incisional biopsy “of the clinically or dermatoscopically most atypical portion of the lesion.” In this situation, a smaller incisional punch biopsy may be performed of the highly suspicious area.

“There are certainly areas that the investigators have identified which could represent potential knowledge gaps,” Dr. Tsao said. “For instance, 14% of the respondents used a 0.6 cm to 1.0 cm (6 mm-10 mm) margin for melanoma greater than 1 mm.”

Dermatologists’ surveillance of patients in the survey was somewhat less divergent. The most recommended follow-up interval for patients diagnosed within the last 5 years, was 6 months (49%), followed by a 3-month interval (25%), and other (24%). Follow-up was extended to yearly by 63% of dermatologists for patients diagnosed more than five years earlier, Dr. Farberg and Dr. Rigel reported.

Both the AAD and NCCN recommend follow-up every 3 to 12 months for those diagnosed with melanoma within the previous 5 years, while for those diagnosed more than 5 years prior, the AAD recommends follow-up every 3 to 12 months and the NCCN every 12 months.

“Adherence to evidence-based guidelines should lead to improved patient outcomes and quality of care. However, newer studies and emerging data may also justify deviations from existing guidelines, suggesting review of those guidelines may be indicated,” Dr. Farberg and Dr. Rigel concluded.

For example, a prospective series examining surgical margins in 1,072 patients with 1,120 malignant melanoma in situs showed that only 86% were successfully excised with a 6-mm margin, significantly less than the 98.9% clearance achieved with a 9-mm margin, Dr. Farberg told this publication.

That said, a 9-mm margin may not be appropriate for all lesions, such as those on the face, he observed.

The investigators said they hope the survey results will spur on revision of the guidelines, last updated in 2011.

Limitations of the survey include a lack of information on clinical factors such as patient history or anatomic site, the survey may have led to generalized answers, and access to care and reimbursement also may have impacted management, the authors noted.

The response rate to the survey was also low at 8%, with 6,177 practicing U.S. dermatologists surveyed. The demographics of the respondents, however, strongly reflected the full AAD membership, Dr. Farberg said. No significant geographical differences were observed.

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
Dermatologists’ management of melanoma varies
Display Headline
Dermatologists’ management of melanoma varies
Legacy Keywords
melanoma management, margins, excision, dermatologists, AADS
Legacy Keywords
melanoma management, margins, excision, dermatologists, AADS
Article Source

AT THE ASDS ANNUAL MEETING

PURLs Copyright

Inside the Article

Vitals

Key clinical point: Significant variance exists in dermatologists’ management of melanoma.

Major finding: Only 31% of dermatologists used narrow excision as recommended to biopsy suspicious lesions.

Data source: Survey of 510 U.S. practicing dermatologists.

Disclosures: The authors reported having no financial disclosures.

Adolescents still struggling mentally years after bariatric surgery

Article Type
Changed
Fri, 01/18/2019 - 15:27
Display Headline
Adolescents still struggling mentally years after bariatric surgery

LOS ANGELES – One in five adolescents report poor mental health 2 years after gastric bypass surgery, a Swedish study shows.

“There is an unmet need for psychiatric and psychological treatment in adolescents, and 20% is a much higher figure than you find in adults,” Kajsa Järvholm of Lund University, Sweden, said at Obesity Week 2015.

Ms. Kajsa Järvholm

Notably, weight loss did not differ during follow-up between adolescents with poor mental health (PMH) and those with average or good mental health.

Girls were more likely than were boys to report PMH (14 vs. 2; P = .053), but no significant age difference was found.

Prior research has shown that adolescents seeking bariatric surgery have impaired mental health compared with population norms, but most adolescents experience an improvement after surgery.

A recent systematic review of psychological and social outcomes in adolescents undergoing bariatric surgery found overall quality of life improved after surgery, regardless of the surgical type, with peak improvement at months 6 to 12 (Clin Obes. 2015 Nov. 6. doi: 10.1111/cob.12119).

The current study involved 82 adolescents who were part of the larger Adolescent Morbid Obesity Surgery (AMOS) study cohort. At the time of surgery, the average age of the patients was 16.8 years and the average body mass index was 45.4 kg/m2. Two-thirds (67%) were girls.

The adolescents were assessed by self-report questionnaires at baseline, 1 year, and 2 years after laparoscopic bariatric surgery. Standardized cutoffs on two different variables, depression and obesity-related problems, were used to classify adolescents as having a PMH or average and good mental health 2 years after surgery.

Adolescents with PMH at 2 years post surgery reported significantly more symptoms of anxiety (P = .004) and depression (P = .028) already before surgery, Ms. Järvholm said.

One year after surgery, more differences were observed. Adolescents with PMH, in addition to reporting more symptoms of anxiety (P less than .0001) and depression (P = .003), also reported more anger (P = .005) and obesity-related problems (P = .006) than did adolescents with an average or good mental health.

No differences were seen at this time in self-concept or disruptive behavior, she said.

Two years after surgery, all measured aspects of mental health were worse in adolescents with PMH (all P values less than .0001), Ms. Järvholm said.

“Preoperative identification is difficult since most variables do not differ between groups, but we should take extra care with adolescents with more anxiety and more depression already before surgery,” she said at the meeting, presented by the Obesity Society and American Society for Metabolic and Bariatric Surgery.

[email protected]

References

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
adolescent mental health, bariatric surgery, obese adolescents, obesity, Obesity Week
Sections
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

LOS ANGELES – One in five adolescents report poor mental health 2 years after gastric bypass surgery, a Swedish study shows.

“There is an unmet need for psychiatric and psychological treatment in adolescents, and 20% is a much higher figure than you find in adults,” Kajsa Järvholm of Lund University, Sweden, said at Obesity Week 2015.

Ms. Kajsa Järvholm

Notably, weight loss did not differ during follow-up between adolescents with poor mental health (PMH) and those with average or good mental health.

Girls were more likely than were boys to report PMH (14 vs. 2; P = .053), but no significant age difference was found.

Prior research has shown that adolescents seeking bariatric surgery have impaired mental health compared with population norms, but most adolescents experience an improvement after surgery.

A recent systematic review of psychological and social outcomes in adolescents undergoing bariatric surgery found overall quality of life improved after surgery, regardless of the surgical type, with peak improvement at months 6 to 12 (Clin Obes. 2015 Nov. 6. doi: 10.1111/cob.12119).

The current study involved 82 adolescents who were part of the larger Adolescent Morbid Obesity Surgery (AMOS) study cohort. At the time of surgery, the average age of the patients was 16.8 years and the average body mass index was 45.4 kg/m2. Two-thirds (67%) were girls.

The adolescents were assessed by self-report questionnaires at baseline, 1 year, and 2 years after laparoscopic bariatric surgery. Standardized cutoffs on two different variables, depression and obesity-related problems, were used to classify adolescents as having a PMH or average and good mental health 2 years after surgery.

Adolescents with PMH at 2 years post surgery reported significantly more symptoms of anxiety (P = .004) and depression (P = .028) already before surgery, Ms. Järvholm said.

One year after surgery, more differences were observed. Adolescents with PMH, in addition to reporting more symptoms of anxiety (P less than .0001) and depression (P = .003), also reported more anger (P = .005) and obesity-related problems (P = .006) than did adolescents with an average or good mental health.

No differences were seen at this time in self-concept or disruptive behavior, she said.

Two years after surgery, all measured aspects of mental health were worse in adolescents with PMH (all P values less than .0001), Ms. Järvholm said.

“Preoperative identification is difficult since most variables do not differ between groups, but we should take extra care with adolescents with more anxiety and more depression already before surgery,” she said at the meeting, presented by the Obesity Society and American Society for Metabolic and Bariatric Surgery.

[email protected]

LOS ANGELES – One in five adolescents report poor mental health 2 years after gastric bypass surgery, a Swedish study shows.

“There is an unmet need for psychiatric and psychological treatment in adolescents, and 20% is a much higher figure than you find in adults,” Kajsa Järvholm of Lund University, Sweden, said at Obesity Week 2015.

Ms. Kajsa Järvholm

Notably, weight loss did not differ during follow-up between adolescents with poor mental health (PMH) and those with average or good mental health.

Girls were more likely than were boys to report PMH (14 vs. 2; P = .053), but no significant age difference was found.

Prior research has shown that adolescents seeking bariatric surgery have impaired mental health compared with population norms, but most adolescents experience an improvement after surgery.

A recent systematic review of psychological and social outcomes in adolescents undergoing bariatric surgery found overall quality of life improved after surgery, regardless of the surgical type, with peak improvement at months 6 to 12 (Clin Obes. 2015 Nov. 6. doi: 10.1111/cob.12119).

The current study involved 82 adolescents who were part of the larger Adolescent Morbid Obesity Surgery (AMOS) study cohort. At the time of surgery, the average age of the patients was 16.8 years and the average body mass index was 45.4 kg/m2. Two-thirds (67%) were girls.

The adolescents were assessed by self-report questionnaires at baseline, 1 year, and 2 years after laparoscopic bariatric surgery. Standardized cutoffs on two different variables, depression and obesity-related problems, were used to classify adolescents as having a PMH or average and good mental health 2 years after surgery.

Adolescents with PMH at 2 years post surgery reported significantly more symptoms of anxiety (P = .004) and depression (P = .028) already before surgery, Ms. Järvholm said.

One year after surgery, more differences were observed. Adolescents with PMH, in addition to reporting more symptoms of anxiety (P less than .0001) and depression (P = .003), also reported more anger (P = .005) and obesity-related problems (P = .006) than did adolescents with an average or good mental health.

No differences were seen at this time in self-concept or disruptive behavior, she said.

Two years after surgery, all measured aspects of mental health were worse in adolescents with PMH (all P values less than .0001), Ms. Järvholm said.

“Preoperative identification is difficult since most variables do not differ between groups, but we should take extra care with adolescents with more anxiety and more depression already before surgery,” she said at the meeting, presented by the Obesity Society and American Society for Metabolic and Bariatric Surgery.

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
Adolescents still struggling mentally years after bariatric surgery
Display Headline
Adolescents still struggling mentally years after bariatric surgery
Legacy Keywords
adolescent mental health, bariatric surgery, obese adolescents, obesity, Obesity Week
Legacy Keywords
adolescent mental health, bariatric surgery, obese adolescents, obesity, Obesity Week
Sections
Article Source

AT OBESITY WEEK 2015

PURLs Copyright

Inside the Article

Vitals

Key clinical point: A substantial number of adolescents report poor mental health 2 years after bariatric surgery.

Major finding: One in five adolescents report poor mental health 2 years after bariatric surgery.

Data source: Retrospective study of 82 adolescents.

Disclosures: The authors reported having no conflicts of interest.

Reoperation risk doubled in Roux-en-Y over sleeve gastrectomy

Article Type
Changed
Fri, 01/18/2019 - 15:27
Display Headline
Reoperation risk doubled in Roux-en-Y over sleeve gastrectomy

CHICAGO – Patients undergoing Roux-en-Y gastric bypass are twice as likely to need a reoperation as those having sleeve gastrectomy, according to ACS NSQIP data.

Reoperation among Roux-en-Y patients was associated with a 10-fold increase in mortality over sleeve gastrectomy (1.2% vs. 0.1%; P less than .01) and a 3-fold increase in length of stay (6 days vs. 2 days; P less than .01), Dr. Matthew Whealon reported at the American College of Surgeons Clinical Congress

The results are consistent with prior contemporary analyses using ACS National Surgical Quality Improvement Program (NSQIP) data reporting reoperation rates of 2.5%-5.1% for Roux-en-Y gastric bypass (RYGB) and 1.6%-3% for sleeve gastrectomy. Those analyses, however, did not include the reasons for reoperation, as these data were not available until the 2012 database release, he said.

Patrice Wendling/Frontline Medical News
Dr. Matthew Whealon

With these data now in hand, lead author Dr. Mark Hanna and his fellow investigators at the University of California, Irvine, identified 36,757 adults in the 2012-2013 database who underwent RYGB (n = 19,597) or sleeve gastrectomy (n = 17,160) for morbid obesity and performed multivariate regression analyses to identify risk factors associated with reoperation.

In all, 518 RYGB patients and 231 sleeve gastrectomy patients required an unplanned return to the operating room (2.6% vs. 1.3%), Dr. Whealon said. The mean time from the index procedure to reoperation was 7.6 days and 7.1 days, respectively.

Obstruction was the biggest driver of reoperation following RYGB, accounting for 28% of reoperations. Other causes were bleeding (14.5%), leak (13%), and other unspecified reasons (18.5%), with data missing in 12%.

Bleeding was the most common indication for reoperation after sleeve gastrectomy (25.5%), followed by other unspecified reasons(24.6%), missing data (13%), leak (12.55%), and obstruction (11.2%), he said.

In adjusted multivariate analyses, factors that significantly increased the risk for reoperation were heart failure (adjusted odds ratio, 2.3), dependent functional status (aOR, 2.1), RYGB (aOR, 1.94), chronic obstructive pulmonary disease (aOR, 1.7), open operation (aOR, 1.6), and male sex (aOR, 1.1). The P values were less than .05 for all comparisons.

Factors not significant for reoperation included body mass index, age, smoking status, bleeding disorder, steroid use, dialysis, hypertension, diabetes, preoperative sepsis, emergent admission, elective operation, and preoperative weight loss.

While bariatric surgery remains a safe operation with low mortality and reoperation rates, additional studies are needed, because of the increased mortality associated with reoperation, to identify ways to mitigate these complications, Dr. Whealon said.

Limitations of the study were that ICD-9 codes for postoperative hemorrhage could not differentiate between intra-abdominal and gastrointestinal bleeding, the database is subject to coding errors, and missing data may have introduced bias into the study, he noted.

Discussant Dr. Matthew Goldblatt of the Medical College of Wisconsin in Milwaukee commented that use of the ACS MBSAQIP (Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program) database would have avoided some of the coding errors for reoperation.

He also questioned whether the average 7-day return to surgery interval reflects the use of endoscopy, as few surgeons would wait that long if, as the analysis suggests, a primary reason for reoperation was postoperative bleeding.

Endoscopy was included in the reoperations, Dr. Whealon said, but he could not speak to the exact percentage it comprised.

Finally, Dr. Goldblatt said, “the patients that you identified as being the highest risk for complication, as is often the case in these reviews, are really the ones most likely to gain the most from the procedure. … So how can people avoid operating on these patients when they are the ones that can get the most out of it?”

Dr. Whealon agreed that high-risk patients have the most to gain and suggested that “optimizing their comorbid conditions before operation will help reduce their risk.”

The authors reported having no conflicts of interest.

[email protected]

References

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
gastric bypass, obesity surgery, Roux-en-Y bypass, bariatric surgery, ACS
Sections
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

CHICAGO – Patients undergoing Roux-en-Y gastric bypass are twice as likely to need a reoperation as those having sleeve gastrectomy, according to ACS NSQIP data.

Reoperation among Roux-en-Y patients was associated with a 10-fold increase in mortality over sleeve gastrectomy (1.2% vs. 0.1%; P less than .01) and a 3-fold increase in length of stay (6 days vs. 2 days; P less than .01), Dr. Matthew Whealon reported at the American College of Surgeons Clinical Congress

The results are consistent with prior contemporary analyses using ACS National Surgical Quality Improvement Program (NSQIP) data reporting reoperation rates of 2.5%-5.1% for Roux-en-Y gastric bypass (RYGB) and 1.6%-3% for sleeve gastrectomy. Those analyses, however, did not include the reasons for reoperation, as these data were not available until the 2012 database release, he said.

Patrice Wendling/Frontline Medical News
Dr. Matthew Whealon

With these data now in hand, lead author Dr. Mark Hanna and his fellow investigators at the University of California, Irvine, identified 36,757 adults in the 2012-2013 database who underwent RYGB (n = 19,597) or sleeve gastrectomy (n = 17,160) for morbid obesity and performed multivariate regression analyses to identify risk factors associated with reoperation.

In all, 518 RYGB patients and 231 sleeve gastrectomy patients required an unplanned return to the operating room (2.6% vs. 1.3%), Dr. Whealon said. The mean time from the index procedure to reoperation was 7.6 days and 7.1 days, respectively.

Obstruction was the biggest driver of reoperation following RYGB, accounting for 28% of reoperations. Other causes were bleeding (14.5%), leak (13%), and other unspecified reasons (18.5%), with data missing in 12%.

Bleeding was the most common indication for reoperation after sleeve gastrectomy (25.5%), followed by other unspecified reasons(24.6%), missing data (13%), leak (12.55%), and obstruction (11.2%), he said.

In adjusted multivariate analyses, factors that significantly increased the risk for reoperation were heart failure (adjusted odds ratio, 2.3), dependent functional status (aOR, 2.1), RYGB (aOR, 1.94), chronic obstructive pulmonary disease (aOR, 1.7), open operation (aOR, 1.6), and male sex (aOR, 1.1). The P values were less than .05 for all comparisons.

Factors not significant for reoperation included body mass index, age, smoking status, bleeding disorder, steroid use, dialysis, hypertension, diabetes, preoperative sepsis, emergent admission, elective operation, and preoperative weight loss.

While bariatric surgery remains a safe operation with low mortality and reoperation rates, additional studies are needed, because of the increased mortality associated with reoperation, to identify ways to mitigate these complications, Dr. Whealon said.

Limitations of the study were that ICD-9 codes for postoperative hemorrhage could not differentiate between intra-abdominal and gastrointestinal bleeding, the database is subject to coding errors, and missing data may have introduced bias into the study, he noted.

Discussant Dr. Matthew Goldblatt of the Medical College of Wisconsin in Milwaukee commented that use of the ACS MBSAQIP (Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program) database would have avoided some of the coding errors for reoperation.

He also questioned whether the average 7-day return to surgery interval reflects the use of endoscopy, as few surgeons would wait that long if, as the analysis suggests, a primary reason for reoperation was postoperative bleeding.

Endoscopy was included in the reoperations, Dr. Whealon said, but he could not speak to the exact percentage it comprised.

Finally, Dr. Goldblatt said, “the patients that you identified as being the highest risk for complication, as is often the case in these reviews, are really the ones most likely to gain the most from the procedure. … So how can people avoid operating on these patients when they are the ones that can get the most out of it?”

Dr. Whealon agreed that high-risk patients have the most to gain and suggested that “optimizing their comorbid conditions before operation will help reduce their risk.”

The authors reported having no conflicts of interest.

[email protected]

CHICAGO – Patients undergoing Roux-en-Y gastric bypass are twice as likely to need a reoperation as those having sleeve gastrectomy, according to ACS NSQIP data.

Reoperation among Roux-en-Y patients was associated with a 10-fold increase in mortality over sleeve gastrectomy (1.2% vs. 0.1%; P less than .01) and a 3-fold increase in length of stay (6 days vs. 2 days; P less than .01), Dr. Matthew Whealon reported at the American College of Surgeons Clinical Congress

The results are consistent with prior contemporary analyses using ACS National Surgical Quality Improvement Program (NSQIP) data reporting reoperation rates of 2.5%-5.1% for Roux-en-Y gastric bypass (RYGB) and 1.6%-3% for sleeve gastrectomy. Those analyses, however, did not include the reasons for reoperation, as these data were not available until the 2012 database release, he said.

Patrice Wendling/Frontline Medical News
Dr. Matthew Whealon

With these data now in hand, lead author Dr. Mark Hanna and his fellow investigators at the University of California, Irvine, identified 36,757 adults in the 2012-2013 database who underwent RYGB (n = 19,597) or sleeve gastrectomy (n = 17,160) for morbid obesity and performed multivariate regression analyses to identify risk factors associated with reoperation.

In all, 518 RYGB patients and 231 sleeve gastrectomy patients required an unplanned return to the operating room (2.6% vs. 1.3%), Dr. Whealon said. The mean time from the index procedure to reoperation was 7.6 days and 7.1 days, respectively.

Obstruction was the biggest driver of reoperation following RYGB, accounting for 28% of reoperations. Other causes were bleeding (14.5%), leak (13%), and other unspecified reasons (18.5%), with data missing in 12%.

Bleeding was the most common indication for reoperation after sleeve gastrectomy (25.5%), followed by other unspecified reasons(24.6%), missing data (13%), leak (12.55%), and obstruction (11.2%), he said.

In adjusted multivariate analyses, factors that significantly increased the risk for reoperation were heart failure (adjusted odds ratio, 2.3), dependent functional status (aOR, 2.1), RYGB (aOR, 1.94), chronic obstructive pulmonary disease (aOR, 1.7), open operation (aOR, 1.6), and male sex (aOR, 1.1). The P values were less than .05 for all comparisons.

Factors not significant for reoperation included body mass index, age, smoking status, bleeding disorder, steroid use, dialysis, hypertension, diabetes, preoperative sepsis, emergent admission, elective operation, and preoperative weight loss.

While bariatric surgery remains a safe operation with low mortality and reoperation rates, additional studies are needed, because of the increased mortality associated with reoperation, to identify ways to mitigate these complications, Dr. Whealon said.

Limitations of the study were that ICD-9 codes for postoperative hemorrhage could not differentiate between intra-abdominal and gastrointestinal bleeding, the database is subject to coding errors, and missing data may have introduced bias into the study, he noted.

Discussant Dr. Matthew Goldblatt of the Medical College of Wisconsin in Milwaukee commented that use of the ACS MBSAQIP (Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program) database would have avoided some of the coding errors for reoperation.

He also questioned whether the average 7-day return to surgery interval reflects the use of endoscopy, as few surgeons would wait that long if, as the analysis suggests, a primary reason for reoperation was postoperative bleeding.

Endoscopy was included in the reoperations, Dr. Whealon said, but he could not speak to the exact percentage it comprised.

Finally, Dr. Goldblatt said, “the patients that you identified as being the highest risk for complication, as is often the case in these reviews, are really the ones most likely to gain the most from the procedure. … So how can people avoid operating on these patients when they are the ones that can get the most out of it?”

Dr. Whealon agreed that high-risk patients have the most to gain and suggested that “optimizing their comorbid conditions before operation will help reduce their risk.”

The authors reported having no conflicts of interest.

[email protected]

References

References

Publications
Publications
Topics
Article Type
Display Headline
Reoperation risk doubled in Roux-en-Y over sleeve gastrectomy
Display Headline
Reoperation risk doubled in Roux-en-Y over sleeve gastrectomy
Legacy Keywords
gastric bypass, obesity surgery, Roux-en-Y bypass, bariatric surgery, ACS
Legacy Keywords
gastric bypass, obesity surgery, Roux-en-Y bypass, bariatric surgery, ACS
Sections
Article Source

AT THE ACS CLINICAL CONGRESS

PURLs Copyright

Inside the Article

Vitals

Key clinical point: Patients undergoing Roux-en-Y gastric bypass were twice as likely to need a reoperation as with sleeve gastrectomy, and reoperation increased morbidity 10-fold.

Major finding: The reoperation rate for Roux-en-Y gastric bypass was 2.6% vs. 1.3% for sleeve gastrectomy.

Data source: An ACS NSQIP database analysis of 36,757 patients undergoing bariatric surgery.

Disclosures: The authors reported having no conflicts of interest.