Anemia

DNA coiled around histones

Image by Eric Smith

Measuring circulating histones may help physicians predict the onset of thrombocytopenia or allow them to monitor the condition in patients who are critically ill, according to researchers.

They noted that histones induce profound thrombocytopenia in mice and are associated with organ injury when released after extensive cell damage in patients who are critically ill.

So the team decided to examine the association between circulating histones and thrombocytopenia in patients in the intensive care unit (ICU).

Cheng-Hock Toh, MD, of the University of Liverpool in the UK, and his colleagues conducted this research and reported the results in a letter to JAMA.

The researchers analyzed 56 patients with thrombocytopenia and 56 controls with normal platelet counts who were admitted to the ICU at Royal Liverpool University Hospital between June 2013 and January 2014.

Thrombocytopenia was defined as a platelet count less than 150 × 10³/µL, a 25% or greater decrease in platelet count, or both within the first 96 hours of ICU admission.

The researchers noted that, at approximately 30 µg/mL, histones bind platelets and cause platelet aggregation, which results in profound thrombocytopenia in mice.

So the team used this as a cutoff to stratify thrombocytopenic patients. A “high” level of histones was 30 µg/mL or greater, and a “low” level was below 30 µg/mL.

The researchers detected circulating histones in 51 of the thrombocytopenic patients and 31 controls—91% and 55%, respectively (P<0.001). Histone levels were 2.5- to 5.5-fold higher in thrombocytopenic patients than in controls.

Thrombocytopenic patients with high histone levels at ICU admission had significantly lower platelet counts and a significantly higher percentage of decrease in platelet counts at 24 hours (P=0.02 and P=0.04, respectively) and 48 hours (P=0.003 and P=0.005, respectively) after admission.

High admission histone levels were associated with moderate to severe thrombocytopenia and the development of clinically important thrombocytopenia (P<0.001).

A 30 µg/mL histone concentration was able to predict thrombocytopenia with 76% sensitivity and 91% specificity. The positive predictive value was 79.4%, and the negative predictive value was 89.2%.

DNA coiled around histones

Image by Eric Smith

Measuring circulating histones may help physicians predict the onset of thrombocytopenia or allow them to monitor the condition in patients who are critically ill, according to researchers.

They noted that histones induce profound thrombocytopenia in mice and are associated with organ injury when released after extensive cell damage in patients who are critically ill.

So the team decided to examine the association between circulating histones and thrombocytopenia in patients in the intensive care unit (ICU).

Cheng-Hock Toh, MD, of the University of Liverpool in the UK, and his colleagues conducted this research and reported the results in a letter to JAMA.

The researchers analyzed 56 patients with thrombocytopenia and 56 controls with normal platelet counts who were admitted to the ICU at Royal Liverpool University Hospital between June 2013 and January 2014.

Thrombocytopenia was defined as a platelet count less than 150 × 10³/µL, a 25% or greater decrease in platelet count, or both within the first 96 hours of ICU admission.

The researchers noted that, at approximately 30 µg/mL, histones bind platelets and cause platelet aggregation, which results in profound thrombocytopenia in mice.

So the team used this as a cutoff to stratify thrombocytopenic patients. A “high” level of histones was 30 µg/mL or greater, and a “low” level was below 30 µg/mL.

The researchers detected circulating histones in 51 of the thrombocytopenic patients and 31 controls—91% and 55%, respectively (P<0.001). Histone levels were 2.5- to 5.5-fold higher in thrombocytopenic patients than in controls.

Thrombocytopenic patients with high histone levels at ICU admission had significantly lower platelet counts and a significantly higher percentage of decrease in platelet counts at 24 hours (P=0.02 and P=0.04, respectively) and 48 hours (P=0.003 and P=0.005, respectively) after admission.

High admission histone levels were associated with moderate to severe thrombocytopenia and the development of clinically important thrombocytopenia (P<0.001).

A 30 µg/mL histone concentration was able to predict thrombocytopenia with 76% sensitivity and 91% specificity. The positive predictive value was 79.4%, and the negative predictive value was 89.2%.

DNA coiled around histones

Image by Eric Smith

Measuring circulating histones may help physicians predict the onset of thrombocytopenia or allow them to monitor the condition in patients who are critically ill, according to researchers.

They noted that histones induce profound thrombocytopenia in mice and are associated with organ injury when released after extensive cell damage in patients who are critically ill.

So the team decided to examine the association between circulating histones and thrombocytopenia in patients in the intensive care unit (ICU).

Cheng-Hock Toh, MD, of the University of Liverpool in the UK, and his colleagues conducted this research and reported the results in a letter to JAMA.

The researchers analyzed 56 patients with thrombocytopenia and 56 controls with normal platelet counts who were admitted to the ICU at Royal Liverpool University Hospital between June 2013 and January 2014.

Thrombocytopenia was defined as a platelet count less than 150 × 10³/µL, a 25% or greater decrease in platelet count, or both within the first 96 hours of ICU admission.

The researchers noted that, at approximately 30 µg/mL, histones bind platelets and cause platelet aggregation, which results in profound thrombocytopenia in mice.

So the team used this as a cutoff to stratify thrombocytopenic patients. A “high” level of histones was 30 µg/mL or greater, and a “low” level was below 30 µg/mL.

The researchers detected circulating histones in 51 of the thrombocytopenic patients and 31 controls—91% and 55%, respectively (P<0.001). Histone levels were 2.5- to 5.5-fold higher in thrombocytopenic patients than in controls.

Thrombocytopenic patients with high histone levels at ICU admission had significantly lower platelet counts and a significantly higher percentage of decrease in platelet counts at 24 hours (P=0.02 and P=0.04, respectively) and 48 hours (P=0.003 and P=0.005, respectively) after admission.

High admission histone levels were associated with moderate to severe thrombocytopenia and the development of clinically important thrombocytopenia (P<0.001).

A 30 µg/mL histone concentration was able to predict thrombocytopenia with 76% sensitivity and 91% specificity. The positive predictive value was 79.4%, and the negative predictive value was 89.2%.

A consensus study of the scientific underpinnings of human gene editing technologies is underway, and the committee of experts behind the effort will independently review potential applications for those technologies, as well as the clinical, ethical, legal, and social implications of their use.

The multidisciplinary committee met Feb. 11 to receive input from select stakeholders as it launches its review, the results of which will represent the official views of the National Academy of Sciences and the National Academy of Medicine.

©Thinkstock.com

Among those stakeholders were representatives from several companies commercializing gene editing, a representative from the National Institutes of Health, and patient advocacy groups.

With some caveats, participants lobbied to maintain the existing regulatory framework related to gene therapy.

Michael Werner, cofounder and executive director of the Alliance for Regenerative Medicine, which advocates globally for regenerative medicine and advanced therapies, said his organization believes “the existing regulatory framework overall works for these technologies.”

“We don’t believe the [Food and Drug Administration], for example, needs to create a whole separate oversight process in addition to the process we already have now for gene therapy,” he said, adding that “the ultimate goal here is not to have regulatory action or legislative action that will hinder or delay the development of these technologies.”

The consensus study follows an International Summit on Human Gene Editing held in December, and is the next component of the Human Gene Editing Initiative. The committee will study the potential for gene editing in biomedical research and medicine – including human germline editing – although representatives from each of the companies represented at the meeting noted that they are not currently focused on germline applications.

Rather, the commercial focus is on other areas, such as correcting genes in somatic cells.

“We start with medical need. We want to work on things where there is not currently a therapy that addresses adequately the medical need, and we need the ability to generate a differentiated product,” said Vic Myer, Ph.D., of Editas Medicine in Cambridge, Mass.

The company has projects underway for opthalmologic applications, sickle cell anemia, beta-thalassemia, Duchenne muscular dystrophy, cystic fibrosis, alpha₁-antitrypsin deficiency in the liver, and others.

“We are working on a number of different types of edits in a number of different tissues with a number of delivery modalities,” Dr. Myer said, noting that some programs will move quickly, while others will not.

Similarly, Intellia Therapeutics, also of Cambridge, Mass., is “focusing very much on what we hope will be curative products for somatic gene-based disorders,” said Dr. John Leonard, the company’s chief medical officer.

“We limit our work to somatic cells. We thought very carefully about that and that is what we do,” he added, noting that a recently launched division of Intellia is focused on autoimmune oncology opportunities (ex vivo), and on liver disease (in vivo).

The committee of experts conducting the consensus study, which began its information-gathering process in December at the International Summit on Human Gene Editing, will take these and other views expressed at the meeting into consideration during its work over the next year. The study will include a literature review and data gathering via meetings in the United States and abroad. The committee will continue to seek input from researchers, clinicians, policy makers, and the public.

“The committee will also monitor in real time the latest scientific achievements of importance in this rapidly developing field,” according to information from the National Academies.

The field has enormous potential, according to Mr. Werner, who explained that combined, the various types of gene editing technology available are “pretty powerful” in terms of an approach for targeting and changing DNA sequences in human cells.

“We’re talking about the potential to durably treat and potentially even cure diseases that currently represent unmet medical needs,” he said. “We could, in theory, be talking about millions of patients worldwide.”

[email protected]

A consensus study of the scientific underpinnings of human gene editing technologies is underway, and the committee of experts behind the effort will independently review potential applications for those technologies, as well as the clinical, ethical, legal, and social implications of their use.

The multidisciplinary committee met Feb. 11 to receive input from select stakeholders as it launches its review, the results of which will represent the official views of the National Academy of Sciences and the National Academy of Medicine.

©Thinkstock.com

Among those stakeholders were representatives from several companies commercializing gene editing, a representative from the National Institutes of Health, and patient advocacy groups.

With some caveats, participants lobbied to maintain the existing regulatory framework related to gene therapy.

Michael Werner, cofounder and executive director of the Alliance for Regenerative Medicine, which advocates globally for regenerative medicine and advanced therapies, said his organization believes “the existing regulatory framework overall works for these technologies.”

“We don’t believe the [Food and Drug Administration], for example, needs to create a whole separate oversight process in addition to the process we already have now for gene therapy,” he said, adding that “the ultimate goal here is not to have regulatory action or legislative action that will hinder or delay the development of these technologies.”

The consensus study follows an International Summit on Human Gene Editing held in December, and is the next component of the Human Gene Editing Initiative. The committee will study the potential for gene editing in biomedical research and medicine – including human germline editing – although representatives from each of the companies represented at the meeting noted that they are not currently focused on germline applications.

Rather, the commercial focus is on other areas, such as correcting genes in somatic cells.

“We start with medical need. We want to work on things where there is not currently a therapy that addresses adequately the medical need, and we need the ability to generate a differentiated product,” said Vic Myer, Ph.D., of Editas Medicine in Cambridge, Mass.

The company has projects underway for opthalmologic applications, sickle cell anemia, beta-thalassemia, Duchenne muscular dystrophy, cystic fibrosis, alpha₁-antitrypsin deficiency in the liver, and others.

“We are working on a number of different types of edits in a number of different tissues with a number of delivery modalities,” Dr. Myer said, noting that some programs will move quickly, while others will not.

Similarly, Intellia Therapeutics, also of Cambridge, Mass., is “focusing very much on what we hope will be curative products for somatic gene-based disorders,” said Dr. John Leonard, the company’s chief medical officer.

“We limit our work to somatic cells. We thought very carefully about that and that is what we do,” he added, noting that a recently launched division of Intellia is focused on autoimmune oncology opportunities (ex vivo), and on liver disease (in vivo).

The committee of experts conducting the consensus study, which began its information-gathering process in December at the International Summit on Human Gene Editing, will take these and other views expressed at the meeting into consideration during its work over the next year. The study will include a literature review and data gathering via meetings in the United States and abroad. The committee will continue to seek input from researchers, clinicians, policy makers, and the public.

“The committee will also monitor in real time the latest scientific achievements of importance in this rapidly developing field,” according to information from the National Academies.

The field has enormous potential, according to Mr. Werner, who explained that combined, the various types of gene editing technology available are “pretty powerful” in terms of an approach for targeting and changing DNA sequences in human cells.

“We’re talking about the potential to durably treat and potentially even cure diseases that currently represent unmet medical needs,” he said. “We could, in theory, be talking about millions of patients worldwide.”

[email protected]

A consensus study of the scientific underpinnings of human gene editing technologies is underway, and the committee of experts behind the effort will independently review potential applications for those technologies, as well as the clinical, ethical, legal, and social implications of their use.

The multidisciplinary committee met Feb. 11 to receive input from select stakeholders as it launches its review, the results of which will represent the official views of the National Academy of Sciences and the National Academy of Medicine.

©Thinkstock.com

Among those stakeholders were representatives from several companies commercializing gene editing, a representative from the National Institutes of Health, and patient advocacy groups.

With some caveats, participants lobbied to maintain the existing regulatory framework related to gene therapy.

Michael Werner, cofounder and executive director of the Alliance for Regenerative Medicine, which advocates globally for regenerative medicine and advanced therapies, said his organization believes “the existing regulatory framework overall works for these technologies.”

“We don’t believe the [Food and Drug Administration], for example, needs to create a whole separate oversight process in addition to the process we already have now for gene therapy,” he said, adding that “the ultimate goal here is not to have regulatory action or legislative action that will hinder or delay the development of these technologies.”

The consensus study follows an International Summit on Human Gene Editing held in December, and is the next component of the Human Gene Editing Initiative. The committee will study the potential for gene editing in biomedical research and medicine – including human germline editing – although representatives from each of the companies represented at the meeting noted that they are not currently focused on germline applications.

Rather, the commercial focus is on other areas, such as correcting genes in somatic cells.

“We start with medical need. We want to work on things where there is not currently a therapy that addresses adequately the medical need, and we need the ability to generate a differentiated product,” said Vic Myer, Ph.D., of Editas Medicine in Cambridge, Mass.

The company has projects underway for opthalmologic applications, sickle cell anemia, beta-thalassemia, Duchenne muscular dystrophy, cystic fibrosis, alpha₁-antitrypsin deficiency in the liver, and others.

“We are working on a number of different types of edits in a number of different tissues with a number of delivery modalities,” Dr. Myer said, noting that some programs will move quickly, while others will not.

Similarly, Intellia Therapeutics, also of Cambridge, Mass., is “focusing very much on what we hope will be curative products for somatic gene-based disorders,” said Dr. John Leonard, the company’s chief medical officer.

“We limit our work to somatic cells. We thought very carefully about that and that is what we do,” he added, noting that a recently launched division of Intellia is focused on autoimmune oncology opportunities (ex vivo), and on liver disease (in vivo).

The committee of experts conducting the consensus study, which began its information-gathering process in December at the International Summit on Human Gene Editing, will take these and other views expressed at the meeting into consideration during its work over the next year. The study will include a literature review and data gathering via meetings in the United States and abroad. The committee will continue to seek input from researchers, clinicians, policy makers, and the public.

“The committee will also monitor in real time the latest scientific achievements of importance in this rapidly developing field,” according to information from the National Academies.

The field has enormous potential, according to Mr. Werner, who explained that combined, the various types of gene editing technology available are “pretty powerful” in terms of an approach for targeting and changing DNA sequences in human cells.

“We’re talking about the potential to durably treat and potentially even cure diseases that currently represent unmet medical needs,” he said. “We could, in theory, be talking about millions of patients worldwide.”

[email protected]

Results of a phase 2 trial suggest an investigational agent may improve upon standard care for acquired thrombotic thrombocytopenic purpura (aTTP).

The agent, caplacizumab, is an anti-von Willebrand factor, humanized, single-variable-domain immunoglobulin that works by inhibiting the interaction between ultralarge von Willebrand factor multimers and platelets.

In the phase 2 TITAN trial, caplacizumab plus standard care induced a faster resolution of aTTP episodes when compared to placebo plus standard care. However, caplacizumab was also associated with a higher risk of bleeding.

Flora Peyvandi, MD, PhD, of the University of Milan in Italy, and her colleagues reported these results in The New England Journal of Medicine. The study was supported by Ablynx, the company developing caplacizumab.

“Caplacizumab has the potential to become an important new component in the standard of care for patients with acquired TTP,” Dr Peyvandi said. “The results from the phase 2 TITAN study showed that caplacizumab acts quickly to control the critical acute phase of the disease and protects patients until immunosuppressive treatments take effect.”

TITAN was a single-blinded, randomized, placebo-controlled study conducted at 56 centers around the world. The trial included 75 aTTP patients who were randomized to caplacizumab (n=36) or placebo (n=39), with all patients receiving the current standard of care (daily plasma exchange and immunosuppressive therapy).

Patients in the caplacizumab arm immediately received an intravenous bolus dose of caplacizumab at 10 mg and then a 10 mg subcutaneous dose of the drug daily until 30 days had elapsed after the final plasma exchange. Patients in the control arm received placebo at the same time points.

Response, recurrence, and relapse

The study’s primary endpoint was time to response (platelet count normalization). Patients in the caplacizumab arm had a 39% reduction in the median time to response compared to patients in the placebo arm (P=0.005).

Among the 69 patients who had not undergone a plasma-exchange session before enrollment, the median time to response was 3.0 days in the caplacizumab arm and 4.9 days in the placebo arm.

Among the 6 patients who did undergo a plasma-exchange session before enrollment, the median time to a response was 2.4 days in the caplacizumab arm and 4.3 days in the placebo arm.

The rate of confirmed response was 86.1% (n=31) in the caplacizumab arm and 71.8% (n=28) in the placebo arm.

One of the study’s secondary endpoints was exacerbation, which was defined as recurrent thrombocytopenia within 30 days of the end of daily plasma exchange that required reinitiation of daily exchange.

There were fewer exacerbations in the caplacizumab arm than the placebo arm—3 (8.3%) and 11 (28.2%), respectively.

Another secondary endpoint was relapse, which was defined as a TTP event occurring more than 30 days after the end of daily plasma exchange.

There were more relapses in the caplacizumab arm than the placebo arm—8 (22.2%) and 0, respectively. The investigators noted that 7 of the 8 patients had ADAMTS13 activity that remained below 10%, which suggests unresolved autoimmune activity.

Adverse events

There were 541 adverse events (AEs) in 34 of the 35 evaluable patients receiving caplacizumab (97%) and 522 AEs in all 37 evaluable patients receiving placebo (100%). TTP exacerbations and relapses were not included as AEs.

The rate of AEs thought to be related to the study drug was 17% in the caplacizumab arm and 11% in the placebo arm. The rate of AEs that were possibly related was 54% and 8%, respectively. And the rate of serious AEs was 37% and 32%, respectively.

The rate of bleeding-related AEs was 54% in the caplacizumab arm and 38% in the placebo arm. Of the 101 bleeding-related AEs, 84 (83%) were reported as mild, 14 (14%) as moderate, and 3 (3%) as severe.

There were no deaths in the caplacizumab arm and 2 in the placebo arm. One death was due to severe, refractory TTP, and the other was due to cerebral hemorrhage.

Caplacizumab development

The results of this trial will serve as the basis for filing for conditional approval of caplacizumab in Europe in the first half of 2017, according to Ablynx. The company is planning to file in the US in 2018.

Ablynx has started a phase 3 trial of caplacizumab known as the HERCULES study. In this double-blind, placebo-controlled study, investigators are evaluating the safety and efficacy of caplacizumab, in conjunction with the standard of care, in patients with aTTP.

The study is expected to enroll 92 patients at clinical sites across 17 countries. Recruitment is expected to be complete by the end of 2017.

Results of a phase 2 trial suggest an investigational agent may improve upon standard care for acquired thrombotic thrombocytopenic purpura (aTTP).

The agent, caplacizumab, is an anti-von Willebrand factor, humanized, single-variable-domain immunoglobulin that works by inhibiting the interaction between ultralarge von Willebrand factor multimers and platelets.

In the phase 2 TITAN trial, caplacizumab plus standard care induced a faster resolution of aTTP episodes when compared to placebo plus standard care. However, caplacizumab was also associated with a higher risk of bleeding.

Flora Peyvandi, MD, PhD, of the University of Milan in Italy, and her colleagues reported these results in The New England Journal of Medicine. The study was supported by Ablynx, the company developing caplacizumab.

“Caplacizumab has the potential to become an important new component in the standard of care for patients with acquired TTP,” Dr Peyvandi said. “The results from the phase 2 TITAN study showed that caplacizumab acts quickly to control the critical acute phase of the disease and protects patients until immunosuppressive treatments take effect.”

TITAN was a single-blinded, randomized, placebo-controlled study conducted at 56 centers around the world. The trial included 75 aTTP patients who were randomized to caplacizumab (n=36) or placebo (n=39), with all patients receiving the current standard of care (daily plasma exchange and immunosuppressive therapy).

Patients in the caplacizumab arm immediately received an intravenous bolus dose of caplacizumab at 10 mg and then a 10 mg subcutaneous dose of the drug daily until 30 days had elapsed after the final plasma exchange. Patients in the control arm received placebo at the same time points.

Response, recurrence, and relapse

The study’s primary endpoint was time to response (platelet count normalization). Patients in the caplacizumab arm had a 39% reduction in the median time to response compared to patients in the placebo arm (P=0.005).

Among the 69 patients who had not undergone a plasma-exchange session before enrollment, the median time to response was 3.0 days in the caplacizumab arm and 4.9 days in the placebo arm.

Among the 6 patients who did undergo a plasma-exchange session before enrollment, the median time to a response was 2.4 days in the caplacizumab arm and 4.3 days in the placebo arm.

The rate of confirmed response was 86.1% (n=31) in the caplacizumab arm and 71.8% (n=28) in the placebo arm.

One of the study’s secondary endpoints was exacerbation, which was defined as recurrent thrombocytopenia within 30 days of the end of daily plasma exchange that required reinitiation of daily exchange.

There were fewer exacerbations in the caplacizumab arm than the placebo arm—3 (8.3%) and 11 (28.2%), respectively.

Another secondary endpoint was relapse, which was defined as a TTP event occurring more than 30 days after the end of daily plasma exchange.

There were more relapses in the caplacizumab arm than the placebo arm—8 (22.2%) and 0, respectively. The investigators noted that 7 of the 8 patients had ADAMTS13 activity that remained below 10%, which suggests unresolved autoimmune activity.

Adverse events

There were 541 adverse events (AEs) in 34 of the 35 evaluable patients receiving caplacizumab (97%) and 522 AEs in all 37 evaluable patients receiving placebo (100%). TTP exacerbations and relapses were not included as AEs.

The rate of AEs thought to be related to the study drug was 17% in the caplacizumab arm and 11% in the placebo arm. The rate of AEs that were possibly related was 54% and 8%, respectively. And the rate of serious AEs was 37% and 32%, respectively.

The rate of bleeding-related AEs was 54% in the caplacizumab arm and 38% in the placebo arm. Of the 101 bleeding-related AEs, 84 (83%) were reported as mild, 14 (14%) as moderate, and 3 (3%) as severe.

There were no deaths in the caplacizumab arm and 2 in the placebo arm. One death was due to severe, refractory TTP, and the other was due to cerebral hemorrhage.

Caplacizumab development

The results of this trial will serve as the basis for filing for conditional approval of caplacizumab in Europe in the first half of 2017, according to Ablynx. The company is planning to file in the US in 2018.

Ablynx has started a phase 3 trial of caplacizumab known as the HERCULES study. In this double-blind, placebo-controlled study, investigators are evaluating the safety and efficacy of caplacizumab, in conjunction with the standard of care, in patients with aTTP.

The study is expected to enroll 92 patients at clinical sites across 17 countries. Recruitment is expected to be complete by the end of 2017.

Results of a phase 2 trial suggest an investigational agent may improve upon standard care for acquired thrombotic thrombocytopenic purpura (aTTP).

The agent, caplacizumab, is an anti-von Willebrand factor, humanized, single-variable-domain immunoglobulin that works by inhibiting the interaction between ultralarge von Willebrand factor multimers and platelets.

In the phase 2 TITAN trial, caplacizumab plus standard care induced a faster resolution of aTTP episodes when compared to placebo plus standard care. However, caplacizumab was also associated with a higher risk of bleeding.

Flora Peyvandi, MD, PhD, of the University of Milan in Italy, and her colleagues reported these results in The New England Journal of Medicine. The study was supported by Ablynx, the company developing caplacizumab.

“Caplacizumab has the potential to become an important new component in the standard of care for patients with acquired TTP,” Dr Peyvandi said. “The results from the phase 2 TITAN study showed that caplacizumab acts quickly to control the critical acute phase of the disease and protects patients until immunosuppressive treatments take effect.”

TITAN was a single-blinded, randomized, placebo-controlled study conducted at 56 centers around the world. The trial included 75 aTTP patients who were randomized to caplacizumab (n=36) or placebo (n=39), with all patients receiving the current standard of care (daily plasma exchange and immunosuppressive therapy).

Patients in the caplacizumab arm immediately received an intravenous bolus dose of caplacizumab at 10 mg and then a 10 mg subcutaneous dose of the drug daily until 30 days had elapsed after the final plasma exchange. Patients in the control arm received placebo at the same time points.

Response, recurrence, and relapse

The study’s primary endpoint was time to response (platelet count normalization). Patients in the caplacizumab arm had a 39% reduction in the median time to response compared to patients in the placebo arm (P=0.005).

Among the 69 patients who had not undergone a plasma-exchange session before enrollment, the median time to response was 3.0 days in the caplacizumab arm and 4.9 days in the placebo arm.

Among the 6 patients who did undergo a plasma-exchange session before enrollment, the median time to a response was 2.4 days in the caplacizumab arm and 4.3 days in the placebo arm.

The rate of confirmed response was 86.1% (n=31) in the caplacizumab arm and 71.8% (n=28) in the placebo arm.

One of the study’s secondary endpoints was exacerbation, which was defined as recurrent thrombocytopenia within 30 days of the end of daily plasma exchange that required reinitiation of daily exchange.

There were fewer exacerbations in the caplacizumab arm than the placebo arm—3 (8.3%) and 11 (28.2%), respectively.

Another secondary endpoint was relapse, which was defined as a TTP event occurring more than 30 days after the end of daily plasma exchange.

There were more relapses in the caplacizumab arm than the placebo arm—8 (22.2%) and 0, respectively. The investigators noted that 7 of the 8 patients had ADAMTS13 activity that remained below 10%, which suggests unresolved autoimmune activity.

Adverse events

There were 541 adverse events (AEs) in 34 of the 35 evaluable patients receiving caplacizumab (97%) and 522 AEs in all 37 evaluable patients receiving placebo (100%). TTP exacerbations and relapses were not included as AEs.

The rate of AEs thought to be related to the study drug was 17% in the caplacizumab arm and 11% in the placebo arm. The rate of AEs that were possibly related was 54% and 8%, respectively. And the rate of serious AEs was 37% and 32%, respectively.

The rate of bleeding-related AEs was 54% in the caplacizumab arm and 38% in the placebo arm. Of the 101 bleeding-related AEs, 84 (83%) were reported as mild, 14 (14%) as moderate, and 3 (3%) as severe.

There were no deaths in the caplacizumab arm and 2 in the placebo arm. One death was due to severe, refractory TTP, and the other was due to cerebral hemorrhage.

Caplacizumab development

The results of this trial will serve as the basis for filing for conditional approval of caplacizumab in Europe in the first half of 2017, according to Ablynx. The company is planning to file in the US in 2018.

Ablynx has started a phase 3 trial of caplacizumab known as the HERCULES study. In this double-blind, placebo-controlled study, investigators are evaluating the safety and efficacy of caplacizumab, in conjunction with the standard of care, in patients with aTTP.

The study is expected to enroll 92 patients at clinical sites across 17 countries. Recruitment is expected to be complete by the end of 2017.

A 69-year-old man is evaluated for fatigue. He undergoes a colonoscopy and is found to have a right-sided colon cancer. His hematocrit is 33 with an MCV of 72. His ferritin level is 3. What do you recommend to help with his iron deficiency?

A. Ferrous sulfate 325 mg daily.

B. Ferrous sulfate 325 mg b.i.d.

C. Ferrous sulfate 325 mg t.i.d.

Treatment of iron deficiency with oral iron has traditionally been done by giving 150-200 mg of elemental iron (which is equal to three 325 mg tablets of iron sulfate).¹ This dosing regimen has considerable gastrointestinal side effects. Recent research into iron absorption suggests that the higher the dose of iron given, the more absorption may be hindered. In a study of 54 women who had low ferritin levels, lower daily doses of iron – and not giving it multiple times a day – led to better iron absorption.²

In a study of elderly patients with iron deficiency, 90 hospitalized elderly patients older than 80 years with iron deficiency anemia were randomized to receive elemental iron as 15 mg or 50 mg of liquid ferrous gluconate, or 150 mg of ferrous calcium citrate for 60 days.³ Two months of iron treatment raised hemoglobin and ferritin levels to a similar degree in all groups, with no significant differences between the 15-mg, 50-mg, and 150-mg groups.

There was a significant difference in abdominal discomfort, with much less (20%) in the patients who received 15 mg of ferrous gluconate, compared with 60% in those who received 50 mg and 70% in those receiving 150 mg (P less than .05 comparing 15 mg with 50 mg and 150 mg). Statistically significant differences were also seen for nausea/vomiting, constipation, and dropout, with much lower rates seen in the low-dose (15-mg) group.

In a study of iron supplementation in individuals undergoing blood donation, a single daily dose of iron was used (37.5 mg of elemental iron) in half of the subjects, with the rest of the subjects receiving no iron.⁴ The mean age of the participants was 48 years.

Subjects who received the once-daily low-dose iron recovered much more quickly toward predonation hematocrit than did those who did not receive the low-dose iron (time to 80% hemoglobin recovery, 32 days vs. 92 days in the non–iron treated patients, P = .02). The effect was more dramatic in subjects who started with a low ferritin level (defined as less than 26), where time to 80% hemoglobin recovery was 36 days in the iron-treated patients vs. 153 days for the no-iron group.

The results of this study are in line with what we know about avid iron absorption in iron deficient patients, and the success of low doses in a younger patient population is encouraging.

In a small study looking at two different doses of elemental iron for the treatment of iron deficiency, 24 women (ages 18-35 years) with iron deficiency were randomized to 60 mg or 80 mg of elemental iron or placebo for 16 weeks.⁵ There was no difference in normalization of ferritin levels in the women who received either dose of iron. There was also no difference in side effects between the groups.

This study is small and had minimal difference in iron dose. In addition, the dosing was given once a day for both groups. I suspect that the lack of difference in side effects was due to both the small size of the study and the minimal difference in iron dose.

What does this all mean? I think that the most appropriate dosing for oral iron replacement is a single daily low-dose iron preparation. Whether that dose is 15 mg of elemental iron to 68 mg of elemental iron (the amount in a 325-mg ferrous sulfate tablet) isn’t clear. Low doses appear to be effective, and avoiding high doses likely decreases side effects without sacrificing efficacy.

References

1. Fairbanks V.F., Beutler E. Iron deficiency, in “Williams Textbook of Hematology, 6th ed. Beutler E., Coller B.S., Lichtman M.A., Kipps T.J., eds. (New York: McGraw-Hill; 2001, pp. 460-2).

2. Blood. 2015 Oct 22;126(17):1981-9.

3. Am J Med. 2005 Oct;118(10):1142-7.

4. JAMA. 2015 Feb 10;313(6):575-83.

5. Nutrients. 2014 Apr 4;6(4):1394-405.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at [email protected].

A 69-year-old man is evaluated for fatigue. He undergoes a colonoscopy and is found to have a right-sided colon cancer. His hematocrit is 33 with an MCV of 72. His ferritin level is 3. What do you recommend to help with his iron deficiency?

A. Ferrous sulfate 325 mg daily.

B. Ferrous sulfate 325 mg b.i.d.

C. Ferrous sulfate 325 mg t.i.d.

Treatment of iron deficiency with oral iron has traditionally been done by giving 150-200 mg of elemental iron (which is equal to three 325 mg tablets of iron sulfate).¹ This dosing regimen has considerable gastrointestinal side effects. Recent research into iron absorption suggests that the higher the dose of iron given, the more absorption may be hindered. In a study of 54 women who had low ferritin levels, lower daily doses of iron – and not giving it multiple times a day – led to better iron absorption.²

In a study of elderly patients with iron deficiency, 90 hospitalized elderly patients older than 80 years with iron deficiency anemia were randomized to receive elemental iron as 15 mg or 50 mg of liquid ferrous gluconate, or 150 mg of ferrous calcium citrate for 60 days.³ Two months of iron treatment raised hemoglobin and ferritin levels to a similar degree in all groups, with no significant differences between the 15-mg, 50-mg, and 150-mg groups.

There was a significant difference in abdominal discomfort, with much less (20%) in the patients who received 15 mg of ferrous gluconate, compared with 60% in those who received 50 mg and 70% in those receiving 150 mg (P less than .05 comparing 15 mg with 50 mg and 150 mg). Statistically significant differences were also seen for nausea/vomiting, constipation, and dropout, with much lower rates seen in the low-dose (15-mg) group.

In a study of iron supplementation in individuals undergoing blood donation, a single daily dose of iron was used (37.5 mg of elemental iron) in half of the subjects, with the rest of the subjects receiving no iron.⁴ The mean age of the participants was 48 years.

Subjects who received the once-daily low-dose iron recovered much more quickly toward predonation hematocrit than did those who did not receive the low-dose iron (time to 80% hemoglobin recovery, 32 days vs. 92 days in the non–iron treated patients, P = .02). The effect was more dramatic in subjects who started with a low ferritin level (defined as less than 26), where time to 80% hemoglobin recovery was 36 days in the iron-treated patients vs. 153 days for the no-iron group.

The results of this study are in line with what we know about avid iron absorption in iron deficient patients, and the success of low doses in a younger patient population is encouraging.

In a small study looking at two different doses of elemental iron for the treatment of iron deficiency, 24 women (ages 18-35 years) with iron deficiency were randomized to 60 mg or 80 mg of elemental iron or placebo for 16 weeks.⁵ There was no difference in normalization of ferritin levels in the women who received either dose of iron. There was also no difference in side effects between the groups.

This study is small and had minimal difference in iron dose. In addition, the dosing was given once a day for both groups. I suspect that the lack of difference in side effects was due to both the small size of the study and the minimal difference in iron dose.

What does this all mean? I think that the most appropriate dosing for oral iron replacement is a single daily low-dose iron preparation. Whether that dose is 15 mg of elemental iron to 68 mg of elemental iron (the amount in a 325-mg ferrous sulfate tablet) isn’t clear. Low doses appear to be effective, and avoiding high doses likely decreases side effects without sacrificing efficacy.

References

1. Fairbanks V.F., Beutler E. Iron deficiency, in “Williams Textbook of Hematology, 6th ed. Beutler E., Coller B.S., Lichtman M.A., Kipps T.J., eds. (New York: McGraw-Hill; 2001, pp. 460-2).

2. Blood. 2015 Oct 22;126(17):1981-9.

3. Am J Med. 2005 Oct;118(10):1142-7.

4. JAMA. 2015 Feb 10;313(6):575-83.

5. Nutrients. 2014 Apr 4;6(4):1394-405.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at [email protected].

A 69-year-old man is evaluated for fatigue. He undergoes a colonoscopy and is found to have a right-sided colon cancer. His hematocrit is 33 with an MCV of 72. His ferritin level is 3. What do you recommend to help with his iron deficiency?

A. Ferrous sulfate 325 mg daily.

B. Ferrous sulfate 325 mg b.i.d.

C. Ferrous sulfate 325 mg t.i.d.

Treatment of iron deficiency with oral iron has traditionally been done by giving 150-200 mg of elemental iron (which is equal to three 325 mg tablets of iron sulfate).¹ This dosing regimen has considerable gastrointestinal side effects. Recent research into iron absorption suggests that the higher the dose of iron given, the more absorption may be hindered. In a study of 54 women who had low ferritin levels, lower daily doses of iron – and not giving it multiple times a day – led to better iron absorption.²

In a study of elderly patients with iron deficiency, 90 hospitalized elderly patients older than 80 years with iron deficiency anemia were randomized to receive elemental iron as 15 mg or 50 mg of liquid ferrous gluconate, or 150 mg of ferrous calcium citrate for 60 days.³ Two months of iron treatment raised hemoglobin and ferritin levels to a similar degree in all groups, with no significant differences between the 15-mg, 50-mg, and 150-mg groups.

There was a significant difference in abdominal discomfort, with much less (20%) in the patients who received 15 mg of ferrous gluconate, compared with 60% in those who received 50 mg and 70% in those receiving 150 mg (P less than .05 comparing 15 mg with 50 mg and 150 mg). Statistically significant differences were also seen for nausea/vomiting, constipation, and dropout, with much lower rates seen in the low-dose (15-mg) group.

In a study of iron supplementation in individuals undergoing blood donation, a single daily dose of iron was used (37.5 mg of elemental iron) in half of the subjects, with the rest of the subjects receiving no iron.⁴ The mean age of the participants was 48 years.

Subjects who received the once-daily low-dose iron recovered much more quickly toward predonation hematocrit than did those who did not receive the low-dose iron (time to 80% hemoglobin recovery, 32 days vs. 92 days in the non–iron treated patients, P = .02). The effect was more dramatic in subjects who started with a low ferritin level (defined as less than 26), where time to 80% hemoglobin recovery was 36 days in the iron-treated patients vs. 153 days for the no-iron group.

The results of this study are in line with what we know about avid iron absorption in iron deficient patients, and the success of low doses in a younger patient population is encouraging.

In a small study looking at two different doses of elemental iron for the treatment of iron deficiency, 24 women (ages 18-35 years) with iron deficiency were randomized to 60 mg or 80 mg of elemental iron or placebo for 16 weeks.⁵ There was no difference in normalization of ferritin levels in the women who received either dose of iron. There was also no difference in side effects between the groups.

This study is small and had minimal difference in iron dose. In addition, the dosing was given once a day for both groups. I suspect that the lack of difference in side effects was due to both the small size of the study and the minimal difference in iron dose.

What does this all mean? I think that the most appropriate dosing for oral iron replacement is a single daily low-dose iron preparation. Whether that dose is 15 mg of elemental iron to 68 mg of elemental iron (the amount in a 325-mg ferrous sulfate tablet) isn’t clear. Low doses appear to be effective, and avoiding high doses likely decreases side effects without sacrificing efficacy.

References

1. Fairbanks V.F., Beutler E. Iron deficiency, in “Williams Textbook of Hematology, 6th ed. Beutler E., Coller B.S., Lichtman M.A., Kipps T.J., eds. (New York: McGraw-Hill; 2001, pp. 460-2).

2. Blood. 2015 Oct 22;126(17):1981-9.

3. Am J Med. 2005 Oct;118(10):1142-7.

4. JAMA. 2015 Feb 10;313(6):575-83.

5. Nutrients. 2014 Apr 4;6(4):1394-405.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at [email protected].

Patient consults pharmacist

Photo by Rhoda Baer

Sun Pharma has announced the US launch of imatinib mesylate tablets, which are a generic version of Novartis’s Gleevec, for indications approved by the US Food and Drug Administration (FDA).

As part of this launch, Sun Pharma has rolled out a savings card program. The goal is to provide greater access to imatinib mesylate tablets for patients who have commercial insurance, but their out-of-pocket cost may exceed an affordable amount.

Sun Pharma’s Imatinib Mesylate Savings Card will reduce patient’s co-payment to $10. The card will also offer patients an additional savings benefit of up to $700 for a 30-day fill to offset any additional out-of-pocket cost should they be required to meet their deductible or co-insurance.

Participating pharmacies across the US can use the patient’s card as part of this program.

Eligible patients can participate in Sun Pharma’s Imatinib Mesylate Savings Card program by registering at www.imatinibrx.com or by requesting a savings card from their oncologist. Sun Pharma will be supplying its Imatinib Mesylate Savings Cards to more than 4500 oncologists.

Sun Pharma has established a Hub service so patients can call and speak with a trained healthcare professional about imatinib mesylate. The number is 1-844-502-5950.

In addition, qualifying patients can receive Sun Pharma’s imatinib mesylate at no cost. Based on qualifications for applying and including a doctor’s prescription, the Hub service will determine if a patient is qualified to receive imatinib mesylate for free. Upon acceptance, the prescription will be processed and delivered to the qualifying patient at no cost.

Sun Pharma’s imatinib mesylate was approved by the FDA in December 2015 and was granted 180 days of marketing exclusivity from the time of its launch. The drug is available in 100 mg and 400 mg tablets.

It is approved to treat:

• Newly diagnosed adult and pediatric patients with Philadelphia-chromosome-positive chronic myeloid leukemia (Ph+ CML) in chronic phase
• Patients with Ph+ CML in blast crisis, accelerated phase, or in chronic phase after failure of interferon-alpha therapy
• Adults with relapsed or refractory Ph+ acute lymphoblastic leukemia
• Adults with myelodysplastic/myeloproliferative diseases associated with PDGFR gene re-arrangements
• Adults with aggressive systemic mastocytosis without the D816V c-Kit mutation or with c-Kit mutational status unknown
• Adults with hypereosinophilic syndrome and/or chronic eosinophilic leukemia, including those who have the FIP1L1-PDGFRα fusion kinase
• Adult patients with unresectable, recurrent, and/or metastatic dermatofibrosarcoma protuberans.

Sun Pharma’s imatinib mesylate is not approved to treat patients with KIT (CD117)-positive unresectable and/or metastatic malignant gastrointestinal stromal tumors.

Patient consults pharmacist

Photo by Rhoda Baer

Sun Pharma has announced the US launch of imatinib mesylate tablets, which are a generic version of Novartis’s Gleevec, for indications approved by the US Food and Drug Administration (FDA).

As part of this launch, Sun Pharma has rolled out a savings card program. The goal is to provide greater access to imatinib mesylate tablets for patients who have commercial insurance, but their out-of-pocket cost may exceed an affordable amount.

Sun Pharma’s Imatinib Mesylate Savings Card will reduce patient’s co-payment to $10. The card will also offer patients an additional savings benefit of up to $700 for a 30-day fill to offset any additional out-of-pocket cost should they be required to meet their deductible or co-insurance.

Participating pharmacies across the US can use the patient’s card as part of this program.

Eligible patients can participate in Sun Pharma’s Imatinib Mesylate Savings Card program by registering at www.imatinibrx.com or by requesting a savings card from their oncologist. Sun Pharma will be supplying its Imatinib Mesylate Savings Cards to more than 4500 oncologists.

Sun Pharma has established a Hub service so patients can call and speak with a trained healthcare professional about imatinib mesylate. The number is 1-844-502-5950.

In addition, qualifying patients can receive Sun Pharma’s imatinib mesylate at no cost. Based on qualifications for applying and including a doctor’s prescription, the Hub service will determine if a patient is qualified to receive imatinib mesylate for free. Upon acceptance, the prescription will be processed and delivered to the qualifying patient at no cost.

Sun Pharma’s imatinib mesylate was approved by the FDA in December 2015 and was granted 180 days of marketing exclusivity from the time of its launch. The drug is available in 100 mg and 400 mg tablets.

It is approved to treat:

• Newly diagnosed adult and pediatric patients with Philadelphia-chromosome-positive chronic myeloid leukemia (Ph+ CML) in chronic phase
• Patients with Ph+ CML in blast crisis, accelerated phase, or in chronic phase after failure of interferon-alpha therapy
• Adults with relapsed or refractory Ph+ acute lymphoblastic leukemia
• Adults with myelodysplastic/myeloproliferative diseases associated with PDGFR gene re-arrangements
• Adults with aggressive systemic mastocytosis without the D816V c-Kit mutation or with c-Kit mutational status unknown
• Adults with hypereosinophilic syndrome and/or chronic eosinophilic leukemia, including those who have the FIP1L1-PDGFRα fusion kinase
• Adult patients with unresectable, recurrent, and/or metastatic dermatofibrosarcoma protuberans.

Sun Pharma’s imatinib mesylate is not approved to treat patients with KIT (CD117)-positive unresectable and/or metastatic malignant gastrointestinal stromal tumors.

Patient consults pharmacist

Photo by Rhoda Baer

Sun Pharma has announced the US launch of imatinib mesylate tablets, which are a generic version of Novartis’s Gleevec, for indications approved by the US Food and Drug Administration (FDA).

As part of this launch, Sun Pharma has rolled out a savings card program. The goal is to provide greater access to imatinib mesylate tablets for patients who have commercial insurance, but their out-of-pocket cost may exceed an affordable amount.

Sun Pharma’s Imatinib Mesylate Savings Card will reduce patient’s co-payment to $10. The card will also offer patients an additional savings benefit of up to $700 for a 30-day fill to offset any additional out-of-pocket cost should they be required to meet their deductible or co-insurance.

Participating pharmacies across the US can use the patient’s card as part of this program.

Eligible patients can participate in Sun Pharma’s Imatinib Mesylate Savings Card program by registering at www.imatinibrx.com or by requesting a savings card from their oncologist. Sun Pharma will be supplying its Imatinib Mesylate Savings Cards to more than 4500 oncologists.

Sun Pharma has established a Hub service so patients can call and speak with a trained healthcare professional about imatinib mesylate. The number is 1-844-502-5950.

In addition, qualifying patients can receive Sun Pharma’s imatinib mesylate at no cost. Based on qualifications for applying and including a doctor’s prescription, the Hub service will determine if a patient is qualified to receive imatinib mesylate for free. Upon acceptance, the prescription will be processed and delivered to the qualifying patient at no cost.

Sun Pharma’s imatinib mesylate was approved by the FDA in December 2015 and was granted 180 days of marketing exclusivity from the time of its launch. The drug is available in 100 mg and 400 mg tablets.

It is approved to treat:

• Newly diagnosed adult and pediatric patients with Philadelphia-chromosome-positive chronic myeloid leukemia (Ph+ CML) in chronic phase
• Patients with Ph+ CML in blast crisis, accelerated phase, or in chronic phase after failure of interferon-alpha therapy
• Adults with relapsed or refractory Ph+ acute lymphoblastic leukemia
• Adults with myelodysplastic/myeloproliferative diseases associated with PDGFR gene re-arrangements
• Adults with aggressive systemic mastocytosis without the D816V c-Kit mutation or with c-Kit mutational status unknown
• Adults with hypereosinophilic syndrome and/or chronic eosinophilic leukemia, including those who have the FIP1L1-PDGFRα fusion kinase
• Adult patients with unresectable, recurrent, and/or metastatic dermatofibrosarcoma protuberans.

Sun Pharma’s imatinib mesylate is not approved to treat patients with KIT (CD117)-positive unresectable and/or metastatic malignant gastrointestinal stromal tumors.

Researcher in the lab

Photo by Daniel Sone

The European Hematology Association (EHA) has created a “roadmap” for hematology research in Europe.

This guidance document summarizes the current status of basic, translational, and clinical hematology research and identifies areas of unmet scientific and medical need in Europe.

It is intended to help European and national policy makers, funding agencies, charities, research institutes, and researchers make decisions on initiating, funding, or developing research.

The guidance, “The European Hematology Association Roadmap for European Hematology Research: A Consensus Document,” is published in this month’s issue of haematologica.

“For the first time, hematologists in Europe came together to develop a roadmap to guide hematology research in Europe” said Andreas Engert, MD, chair of the EHA Research Roadmap Task Force.

“Hematology in Europe has achieved a lot, but the discipline must focus and collaborate to be efficient and remain successful in improving patient outcomes. The roadmap does just that and will determine the research agenda in Europe in the coming years.”

Roughly 300 experts from more than 20 countries—including clinicians, basic researchers, and patients—contributed to the roadmap. Stakeholders such as national hematology societies, patient organizations, hematology trial groups, and other European organizations were consulted to comment on the final draft version.

The final roadmap has 9 sections: normal hematopoiesis, malignant lymphoid and myeloid diseases, anemias and related diseases, platelet disorders, blood coagulation and hemostatic disorders, transfusion medicine, infections in hematology, and hematopoietic stem cell transplantation.

The roadmap lists priorities and needs in these areas, including the need for targeted therapies based on genomic profiling and chemical biology, the need to eradicate minimal residual disease, and the need for treatments that are better tolerated by elderly patients.

“Now’s the time for Europe to pay attention,” said Ulrich Jäger, MD, chair of the EHA European Affairs Committee.

“With an aging population, the slow recovery from the financial and Euro crises, costly medical breakthroughs and innovations—quite a few of which involve hematology researchers—Europe faces increased health expenditures while budgets are limited.”

“Policy makers are rightfully cautious when spending the taxpayers’ money. So it is our responsibility to provide the policy makers with the information and evidence they need to decide where their support impacts knowledge and health most efficiently, to the benefit of patients and society. The Research Roadmap delivers on that. Now, it is up to the policy makers in the EU to deliver too.”

Researcher in the lab

Photo by Daniel Sone

The European Hematology Association (EHA) has created a “roadmap” for hematology research in Europe.

This guidance document summarizes the current status of basic, translational, and clinical hematology research and identifies areas of unmet scientific and medical need in Europe.

It is intended to help European and national policy makers, funding agencies, charities, research institutes, and researchers make decisions on initiating, funding, or developing research.

The guidance, “The European Hematology Association Roadmap for European Hematology Research: A Consensus Document,” is published in this month’s issue of haematologica.

“For the first time, hematologists in Europe came together to develop a roadmap to guide hematology research in Europe” said Andreas Engert, MD, chair of the EHA Research Roadmap Task Force.

“Hematology in Europe has achieved a lot, but the discipline must focus and collaborate to be efficient and remain successful in improving patient outcomes. The roadmap does just that and will determine the research agenda in Europe in the coming years.”

Roughly 300 experts from more than 20 countries—including clinicians, basic researchers, and patients—contributed to the roadmap. Stakeholders such as national hematology societies, patient organizations, hematology trial groups, and other European organizations were consulted to comment on the final draft version.

The final roadmap has 9 sections: normal hematopoiesis, malignant lymphoid and myeloid diseases, anemias and related diseases, platelet disorders, blood coagulation and hemostatic disorders, transfusion medicine, infections in hematology, and hematopoietic stem cell transplantation.

The roadmap lists priorities and needs in these areas, including the need for targeted therapies based on genomic profiling and chemical biology, the need to eradicate minimal residual disease, and the need for treatments that are better tolerated by elderly patients.

“Now’s the time for Europe to pay attention,” said Ulrich Jäger, MD, chair of the EHA European Affairs Committee.

“With an aging population, the slow recovery from the financial and Euro crises, costly medical breakthroughs and innovations—quite a few of which involve hematology researchers—Europe faces increased health expenditures while budgets are limited.”

“Policy makers are rightfully cautious when spending the taxpayers’ money. So it is our responsibility to provide the policy makers with the information and evidence they need to decide where their support impacts knowledge and health most efficiently, to the benefit of patients and society. The Research Roadmap delivers on that. Now, it is up to the policy makers in the EU to deliver too.”

Researcher in the lab

Photo by Daniel Sone

The European Hematology Association (EHA) has created a “roadmap” for hematology research in Europe.

This guidance document summarizes the current status of basic, translational, and clinical hematology research and identifies areas of unmet scientific and medical need in Europe.

It is intended to help European and national policy makers, funding agencies, charities, research institutes, and researchers make decisions on initiating, funding, or developing research.

The guidance, “The European Hematology Association Roadmap for European Hematology Research: A Consensus Document,” is published in this month’s issue of haematologica.

“For the first time, hematologists in Europe came together to develop a roadmap to guide hematology research in Europe” said Andreas Engert, MD, chair of the EHA Research Roadmap Task Force.

“Hematology in Europe has achieved a lot, but the discipline must focus and collaborate to be efficient and remain successful in improving patient outcomes. The roadmap does just that and will determine the research agenda in Europe in the coming years.”

Roughly 300 experts from more than 20 countries—including clinicians, basic researchers, and patients—contributed to the roadmap. Stakeholders such as national hematology societies, patient organizations, hematology trial groups, and other European organizations were consulted to comment on the final draft version.

The final roadmap has 9 sections: normal hematopoiesis, malignant lymphoid and myeloid diseases, anemias and related diseases, platelet disorders, blood coagulation and hemostatic disorders, transfusion medicine, infections in hematology, and hematopoietic stem cell transplantation.

The roadmap lists priorities and needs in these areas, including the need for targeted therapies based on genomic profiling and chemical biology, the need to eradicate minimal residual disease, and the need for treatments that are better tolerated by elderly patients.

“Now’s the time for Europe to pay attention,” said Ulrich Jäger, MD, chair of the EHA European Affairs Committee.

“With an aging population, the slow recovery from the financial and Euro crises, costly medical breakthroughs and innovations—quite a few of which involve hematology researchers—Europe faces increased health expenditures while budgets are limited.”

“Policy makers are rightfully cautious when spending the taxpayers’ money. So it is our responsibility to provide the policy makers with the information and evidence they need to decide where their support impacts knowledge and health most efficiently, to the benefit of patients and society. The Research Roadmap delivers on that. Now, it is up to the policy makers in the EU to deliver too.”

Medicare will cover allogeneic hematopoietic stem cell transplantation (HSCT) for beneficiaries with multiple myeloma, myelofibrosis, or sickle cell disease in the context of approved, prospective clinical trials, the Centers for Medicare & Medicaid Services announced in a final decision memo Jan. 27.

Approvable studies must examine whether Medicare beneficiaries who receive allogeneic HSCT have improved outcomes, compared with patients who do not receive allogeneic HSCT as measured by graft vs. host disease, other transplant-related adverse events, overall survival, and, optionally, quality of life measures.

In multiple myeloma, allogeneic HSCT will be covered only for Medicare beneficiaries who have Durie-Salmon Stage II or III multiple myeloma, or International Staging System (ISS) Stage II or Stage III multiple myeloma, and are participating in an approved prospective clinical study. Such studies must control for selection bias and potential confounding by age, duration of diagnosis, disease classification, International Myeloma Working Group (IMWG) classification, ISS staging, Durie-Salmon staging, comorbid conditions, type of preparative/conditioning regimen, graft vs. host disease (GVHD) prophylaxis, donor type, and cell source, the CMS said in its memo.

In myelofibrosis, allogeneic HSCT will be covered by Medicare in an approved prospective study only for beneficiaries with Dynamic International Prognostic Scoring System (DIPSS plus) intermediate-2 or high primary or secondary myelofibrosis. Studies must be controlled for selection bias and potential confounding by age, duration of diagnosis, disease classification, DIPSS plus score, comorbid conditions, type of preparative/conditioning regimen, GVHD prophylaxis, donor type, and cell source.

In sickle cell disease, allogeneic HSCT will be covered by Medicare only for beneficiaries who have severe, symptomatic disease. Approvable studies must control for selection bias and potential confounding by age, duration of diagnosis, comorbid conditions, type of preparative/conditioning regimen, GVHD prophylaxis, donor type, and cell source.

[email protected]

On Twitter @maryjodales

Medicare will cover allogeneic hematopoietic stem cell transplantation (HSCT) for beneficiaries with multiple myeloma, myelofibrosis, or sickle cell disease in the context of approved, prospective clinical trials, the Centers for Medicare & Medicaid Services announced in a final decision memo Jan. 27.

Approvable studies must examine whether Medicare beneficiaries who receive allogeneic HSCT have improved outcomes, compared with patients who do not receive allogeneic HSCT as measured by graft vs. host disease, other transplant-related adverse events, overall survival, and, optionally, quality of life measures.

In multiple myeloma, allogeneic HSCT will be covered only for Medicare beneficiaries who have Durie-Salmon Stage II or III multiple myeloma, or International Staging System (ISS) Stage II or Stage III multiple myeloma, and are participating in an approved prospective clinical study. Such studies must control for selection bias and potential confounding by age, duration of diagnosis, disease classification, International Myeloma Working Group (IMWG) classification, ISS staging, Durie-Salmon staging, comorbid conditions, type of preparative/conditioning regimen, graft vs. host disease (GVHD) prophylaxis, donor type, and cell source, the CMS said in its memo.

In myelofibrosis, allogeneic HSCT will be covered by Medicare in an approved prospective study only for beneficiaries with Dynamic International Prognostic Scoring System (DIPSS plus) intermediate-2 or high primary or secondary myelofibrosis. Studies must be controlled for selection bias and potential confounding by age, duration of diagnosis, disease classification, DIPSS plus score, comorbid conditions, type of preparative/conditioning regimen, GVHD prophylaxis, donor type, and cell source.

In sickle cell disease, allogeneic HSCT will be covered by Medicare only for beneficiaries who have severe, symptomatic disease. Approvable studies must control for selection bias and potential confounding by age, duration of diagnosis, comorbid conditions, type of preparative/conditioning regimen, GVHD prophylaxis, donor type, and cell source.

[email protected]

On Twitter @maryjodales

Medicare will cover allogeneic hematopoietic stem cell transplantation (HSCT) for beneficiaries with multiple myeloma, myelofibrosis, or sickle cell disease in the context of approved, prospective clinical trials, the Centers for Medicare & Medicaid Services announced in a final decision memo Jan. 27.

Approvable studies must examine whether Medicare beneficiaries who receive allogeneic HSCT have improved outcomes, compared with patients who do not receive allogeneic HSCT as measured by graft vs. host disease, other transplant-related adverse events, overall survival, and, optionally, quality of life measures.

In multiple myeloma, allogeneic HSCT will be covered only for Medicare beneficiaries who have Durie-Salmon Stage II or III multiple myeloma, or International Staging System (ISS) Stage II or Stage III multiple myeloma, and are participating in an approved prospective clinical study. Such studies must control for selection bias and potential confounding by age, duration of diagnosis, disease classification, International Myeloma Working Group (IMWG) classification, ISS staging, Durie-Salmon staging, comorbid conditions, type of preparative/conditioning regimen, graft vs. host disease (GVHD) prophylaxis, donor type, and cell source, the CMS said in its memo.

In myelofibrosis, allogeneic HSCT will be covered by Medicare in an approved prospective study only for beneficiaries with Dynamic International Prognostic Scoring System (DIPSS plus) intermediate-2 or high primary or secondary myelofibrosis. Studies must be controlled for selection bias and potential confounding by age, duration of diagnosis, disease classification, DIPSS plus score, comorbid conditions, type of preparative/conditioning regimen, GVHD prophylaxis, donor type, and cell source.

In sickle cell disease, allogeneic HSCT will be covered by Medicare only for beneficiaries who have severe, symptomatic disease. Approvable studies must control for selection bias and potential confounding by age, duration of diagnosis, comorbid conditions, type of preparative/conditioning regimen, GVHD prophylaxis, donor type, and cell source.

[email protected]

On Twitter @maryjodales

Blood sample collection

Photo by Juan D. Alfonso

NHS Blood and Transplant (NHSBT) has announced an initiative to provide more detailed blood-group typing for patients with hemoglobinopathies, with the goal of enabling better-matched and potentially safer transfusions.

The typing will detect Rh variant blood groups, which need to be considered when planning transfusions.

Previously, typing to this level was only possible through reference laboratories using complex genotyping methods.

NHSBT is offering the testing at no extra cost to hospitals in England until the end of June 2016.

The initiative involves routinely testing for the RHD and RHCE variants most commonly found in patients with hemoglobinopathies. NHSBT will also test genes for the blood groups K, k, Kpa, Kpb, Jsa, Jsb, Jka, Jkb, Fya, Fyb, Fy (GATA), M, N, S, s, U, Doa, and Dob.

Unlike older methods, this testing can be performed in patients who have recently received blood.

NHSBT said this initiative will enable the creation of a database of genotyped blood details for patients with hemoglobinopathies.

Extended blood type information and fast access to the database could potentially enable safer blood transfusions for these patients, who may need numerous transfusions during their lifetime and may move between hospitals.

NHSBT said it has received more than 2500 blood samples thus far. The results are processed centrally by NHSBT at the International Blood Group Reference Laboratory in Filton and are securely stored.

Patients’ test results will be accessible to the teams involved in the patients’ care.

“Patients taking part can now potentially receive more finely matched blood if we know not just their blood group but whether they have a variant Rh type,” said Sara Trompeter, MB ChB, a consultant hematologist for NHSBT.

“And there will also be greater safety and likelihood of getting matched blood in an emergency, as their records will be held centrally and can be accessed by blood banks in local hospitals. We would urge all patients with hemoglobin disorders such as sickle cell disease or thalassemia to speak to their medical or nursing team about providing a blood sample to NHS Blood and Transplant via their local transfusion laboratories to be genotyped.”

Additional information on this initiative can be found at www.nhsbt.nhs.uk/extendedbloodgrouptesting.

Blood sample collection

Photo by Juan D. Alfonso

NHS Blood and Transplant (NHSBT) has announced an initiative to provide more detailed blood-group typing for patients with hemoglobinopathies, with the goal of enabling better-matched and potentially safer transfusions.

The typing will detect Rh variant blood groups, which need to be considered when planning transfusions.

Previously, typing to this level was only possible through reference laboratories using complex genotyping methods.

NHSBT is offering the testing at no extra cost to hospitals in England until the end of June 2016.

The initiative involves routinely testing for the RHD and RHCE variants most commonly found in patients with hemoglobinopathies. NHSBT will also test genes for the blood groups K, k, Kpa, Kpb, Jsa, Jsb, Jka, Jkb, Fya, Fyb, Fy (GATA), M, N, S, s, U, Doa, and Dob.

Unlike older methods, this testing can be performed in patients who have recently received blood.

NHSBT said this initiative will enable the creation of a database of genotyped blood details for patients with hemoglobinopathies.

Extended blood type information and fast access to the database could potentially enable safer blood transfusions for these patients, who may need numerous transfusions during their lifetime and may move between hospitals.

NHSBT said it has received more than 2500 blood samples thus far. The results are processed centrally by NHSBT at the International Blood Group Reference Laboratory in Filton and are securely stored.

Patients’ test results will be accessible to the teams involved in the patients’ care.

“Patients taking part can now potentially receive more finely matched blood if we know not just their blood group but whether they have a variant Rh type,” said Sara Trompeter, MB ChB, a consultant hematologist for NHSBT.

“And there will also be greater safety and likelihood of getting matched blood in an emergency, as their records will be held centrally and can be accessed by blood banks in local hospitals. We would urge all patients with hemoglobin disorders such as sickle cell disease or thalassemia to speak to their medical or nursing team about providing a blood sample to NHS Blood and Transplant via their local transfusion laboratories to be genotyped.”

Additional information on this initiative can be found at www.nhsbt.nhs.uk/extendedbloodgrouptesting.

Blood sample collection

Photo by Juan D. Alfonso

NHS Blood and Transplant (NHSBT) has announced an initiative to provide more detailed blood-group typing for patients with hemoglobinopathies, with the goal of enabling better-matched and potentially safer transfusions.

The typing will detect Rh variant blood groups, which need to be considered when planning transfusions.

Previously, typing to this level was only possible through reference laboratories using complex genotyping methods.

NHSBT is offering the testing at no extra cost to hospitals in England until the end of June 2016.

The initiative involves routinely testing for the RHD and RHCE variants most commonly found in patients with hemoglobinopathies. NHSBT will also test genes for the blood groups K, k, Kpa, Kpb, Jsa, Jsb, Jka, Jkb, Fya, Fyb, Fy (GATA), M, N, S, s, U, Doa, and Dob.

Unlike older methods, this testing can be performed in patients who have recently received blood.

NHSBT said this initiative will enable the creation of a database of genotyped blood details for patients with hemoglobinopathies.

Extended blood type information and fast access to the database could potentially enable safer blood transfusions for these patients, who may need numerous transfusions during their lifetime and may move between hospitals.

NHSBT said it has received more than 2500 blood samples thus far. The results are processed centrally by NHSBT at the International Blood Group Reference Laboratory in Filton and are securely stored.

Patients’ test results will be accessible to the teams involved in the patients’ care.

“Patients taking part can now potentially receive more finely matched blood if we know not just their blood group but whether they have a variant Rh type,” said Sara Trompeter, MB ChB, a consultant hematologist for NHSBT.

“And there will also be greater safety and likelihood of getting matched blood in an emergency, as their records will be held centrally and can be accessed by blood banks in local hospitals. We would urge all patients with hemoglobin disorders such as sickle cell disease or thalassemia to speak to their medical or nursing team about providing a blood sample to NHS Blood and Transplant via their local transfusion laboratories to be genotyped.”

Additional information on this initiative can be found at www.nhsbt.nhs.uk/extendedbloodgrouptesting.

Adults with sickle cell disease who received recommended doses of hydroxyurea had higher fetal hemoglobin (HbF) levels, less organ dysfunction, and improved survival, compared with those who did receive recommended hydroxyurea doses, according to researchers.

“Our data suggest that even moderate increases, and not necessarily maximum HbF induction, may improve survival in patients with sickle cell anemia,” wrote Dr. Courtney D. Fitzhugh, assistant clinical investigator in the Laboratory of Sickle Mortality Prevention at the National Heart, Lung, and Blood Institute, Bethesda, Md., and her colleagues (PLoS One. 2015 Nov 17; doi:10.1371/journal.pone.0141706).

CDC/Janice Haney Carr

From 2001 to 2010, 383 patients with sickle cell disease underwent data clinical, laboratory, and echocardiographic evaluations every 2 years during a median follow-up of 2.6 years (range, 0.1-11.7).

In total, 59 patients died, and the median age at death was 46 years for men and 44.5 for women. Deceased subjects had lower fetal hemoglobin (P = .0044), were less likely to have taken hydroxyurea (56% vs. 68%, P = .040), and had a smaller proportion who were prescribed hydroxyurea within the recommended dose range (29% vs. 46%, P = .0039). Study participants who received a dose between 15 and 35 mg/kg/day more likely survived than those who never took hydroxyurea (P = .005). To assess the impact of hydroxyurea-induced HbF on organ injury, the study compared laboratory values from the highest and lowest HbF quartiles. For the lowest HbF quartile, alkaline phosphatase, a marker of organ damage, was consistently lower. “Because organ dysfunction may limit dosing, and hydroxyurea may not reverse severe tissue injury, we recommend treatment before organ damage occurs,” the researchers wrote.

Dr. Fitzhugh reported having no disclosures.

Adults with sickle cell disease who received recommended doses of hydroxyurea had higher fetal hemoglobin (HbF) levels, less organ dysfunction, and improved survival, compared with those who did receive recommended hydroxyurea doses, according to researchers.

“Our data suggest that even moderate increases, and not necessarily maximum HbF induction, may improve survival in patients with sickle cell anemia,” wrote Dr. Courtney D. Fitzhugh, assistant clinical investigator in the Laboratory of Sickle Mortality Prevention at the National Heart, Lung, and Blood Institute, Bethesda, Md., and her colleagues (PLoS One. 2015 Nov 17; doi:10.1371/journal.pone.0141706).

CDC/Janice Haney Carr

From 2001 to 2010, 383 patients with sickle cell disease underwent data clinical, laboratory, and echocardiographic evaluations every 2 years during a median follow-up of 2.6 years (range, 0.1-11.7).

In total, 59 patients died, and the median age at death was 46 years for men and 44.5 for women. Deceased subjects had lower fetal hemoglobin (P = .0044), were less likely to have taken hydroxyurea (56% vs. 68%, P = .040), and had a smaller proportion who were prescribed hydroxyurea within the recommended dose range (29% vs. 46%, P = .0039). Study participants who received a dose between 15 and 35 mg/kg/day more likely survived than those who never took hydroxyurea (P = .005). To assess the impact of hydroxyurea-induced HbF on organ injury, the study compared laboratory values from the highest and lowest HbF quartiles. For the lowest HbF quartile, alkaline phosphatase, a marker of organ damage, was consistently lower. “Because organ dysfunction may limit dosing, and hydroxyurea may not reverse severe tissue injury, we recommend treatment before organ damage occurs,” the researchers wrote.

Dr. Fitzhugh reported having no disclosures.

Adults with sickle cell disease who received recommended doses of hydroxyurea had higher fetal hemoglobin (HbF) levels, less organ dysfunction, and improved survival, compared with those who did receive recommended hydroxyurea doses, according to researchers.

“Our data suggest that even moderate increases, and not necessarily maximum HbF induction, may improve survival in patients with sickle cell anemia,” wrote Dr. Courtney D. Fitzhugh, assistant clinical investigator in the Laboratory of Sickle Mortality Prevention at the National Heart, Lung, and Blood Institute, Bethesda, Md., and her colleagues (PLoS One. 2015 Nov 17; doi:10.1371/journal.pone.0141706).

CDC/Janice Haney Carr

From 2001 to 2010, 383 patients with sickle cell disease underwent data clinical, laboratory, and echocardiographic evaluations every 2 years during a median follow-up of 2.6 years (range, 0.1-11.7).

In total, 59 patients died, and the median age at death was 46 years for men and 44.5 for women. Deceased subjects had lower fetal hemoglobin (P = .0044), were less likely to have taken hydroxyurea (56% vs. 68%, P = .040), and had a smaller proportion who were prescribed hydroxyurea within the recommended dose range (29% vs. 46%, P = .0039). Study participants who received a dose between 15 and 35 mg/kg/day more likely survived than those who never took hydroxyurea (P = .005). To assess the impact of hydroxyurea-induced HbF on organ injury, the study compared laboratory values from the highest and lowest HbF quartiles. For the lowest HbF quartile, alkaline phosphatase, a marker of organ damage, was consistently lower. “Because organ dysfunction may limit dosing, and hydroxyurea may not reverse severe tissue injury, we recommend treatment before organ damage occurs,” the researchers wrote.

Dr. Fitzhugh reported having no disclosures.

Red blood cells

A pair of transcription factors repress the expression of fetal hemoglobin and might therefore be targets for the treatment of hemoglobinopathies, according to research published in Science.

Previous studies have indicated that hemoglobinopathies may be treated by inducing fetal-type hemoglobin.

However, researchers have been unable to achieve this because they don’t fully understand the factors that influence adult hemoglobin, including those that repress fetal hemoglobin.

Takeshi Masuda, PhD, of Brigham and Women’s Hospital in Boston, Massachusetts, and his colleagues suspected that the transcription factor LRF might play a role in the differentiation between hemoglobin types.

To test this theory, the team knocked out the gene that encodes LRF, ZBTB7A, in mice.

This boosted the expression of genes known to play a role in the production of fetal-type hemoglobin but not adult-type hemoglobin. Knocking out ZBTB7A in human cells produced similar results.

The researchers said LRF/ZBTB7A occupies fetal γ-globin genes and maintains the nucleosome density necessary for γ-globin gene silencing in adults.

They also discovered that LRF represses the expression of fetal-type hemoglobin through a NuRD repressor complex independent of BCL11A, a transcription factor already known to repress fetal-type hemoglobin.

However, in mice with both ZBTB7A and BCL11A knocked out, fetal-type hemoglobin represented a greater percentage of total hemoglobin (91% to 94%) than when either gene was knocked out alone.

Therefore, the researchers believe that therapies targeting the 2 proteins these genes express—LRF and BCL11A—may offer a viable way to induce fetal-type hemoglobin in patients with hemoglobinopathies.

Red blood cells

A pair of transcription factors repress the expression of fetal hemoglobin and might therefore be targets for the treatment of hemoglobinopathies, according to research published in Science.

Previous studies have indicated that hemoglobinopathies may be treated by inducing fetal-type hemoglobin.

However, researchers have been unable to achieve this because they don’t fully understand the factors that influence adult hemoglobin, including those that repress fetal hemoglobin.

Takeshi Masuda, PhD, of Brigham and Women’s Hospital in Boston, Massachusetts, and his colleagues suspected that the transcription factor LRF might play a role in the differentiation between hemoglobin types.

To test this theory, the team knocked out the gene that encodes LRF, ZBTB7A, in mice.

This boosted the expression of genes known to play a role in the production of fetal-type hemoglobin but not adult-type hemoglobin. Knocking out ZBTB7A in human cells produced similar results.

The researchers said LRF/ZBTB7A occupies fetal γ-globin genes and maintains the nucleosome density necessary for γ-globin gene silencing in adults.

They also discovered that LRF represses the expression of fetal-type hemoglobin through a NuRD repressor complex independent of BCL11A, a transcription factor already known to repress fetal-type hemoglobin.

However, in mice with both ZBTB7A and BCL11A knocked out, fetal-type hemoglobin represented a greater percentage of total hemoglobin (91% to 94%) than when either gene was knocked out alone.

Therefore, the researchers believe that therapies targeting the 2 proteins these genes express—LRF and BCL11A—may offer a viable way to induce fetal-type hemoglobin in patients with hemoglobinopathies.

Red blood cells

A pair of transcription factors repress the expression of fetal hemoglobin and might therefore be targets for the treatment of hemoglobinopathies, according to research published in Science.

Previous studies have indicated that hemoglobinopathies may be treated by inducing fetal-type hemoglobin.

However, researchers have been unable to achieve this because they don’t fully understand the factors that influence adult hemoglobin, including those that repress fetal hemoglobin.

Takeshi Masuda, PhD, of Brigham and Women’s Hospital in Boston, Massachusetts, and his colleagues suspected that the transcription factor LRF might play a role in the differentiation between hemoglobin types.

To test this theory, the team knocked out the gene that encodes LRF, ZBTB7A, in mice.

This boosted the expression of genes known to play a role in the production of fetal-type hemoglobin but not adult-type hemoglobin. Knocking out ZBTB7A in human cells produced similar results.

The researchers said LRF/ZBTB7A occupies fetal γ-globin genes and maintains the nucleosome density necessary for γ-globin gene silencing in adults.

They also discovered that LRF represses the expression of fetal-type hemoglobin through a NuRD repressor complex independent of BCL11A, a transcription factor already known to repress fetal-type hemoglobin.

However, in mice with both ZBTB7A and BCL11A knocked out, fetal-type hemoglobin represented a greater percentage of total hemoglobin (91% to 94%) than when either gene was knocked out alone.

Therefore, the researchers believe that therapies targeting the 2 proteins these genes express—LRF and BCL11A—may offer a viable way to induce fetal-type hemoglobin in patients with hemoglobinopathies.