Leukemia, Myelodysplasia, Transplantation

Daily oral treatment with venetoclax induced substantial responses with manageable adverse effects in patients with relapsed chronic lymphocytic leukemia or small lymphocytic lymphoma in a first-in-human phase I dose-escalation study.

The promising effects of the highly selective investigational inhibitor of BCL2 – a protein central to the survival of CLL cells – were noted even in patients with poor prognostic features, who comprised 89% of the cohort, reported Dr. Andrew W. Roberts of Royal Melbourne Hospital, Australia, and his colleagues. The study was published online Jan. 28 in The New England Journal of Medicine.

In the dose escalation phase of the study, 56 patients received active treatment at doses raging from 150 to 1,200 mg daily, and 60 additional patients received weekly stepwise ramp-up with doses beginning at 20 mg daily with weekly increases to 50 mg, 100 mg, and 200 mg daily up to the target dose of 400 mg daily. The patients had received a median of 3 previous therapies (range, 1-11).

Of 116 treated patients, 92 (79%) had a response, and 20% achieved complete remission, including 5% with no minimal residual disease on flow cytometry, the investigators said (N Engl J Med. 2016;374:311-22).

Venetoclax was active at all doses used in the study, and no maximum tolerated dose was identified.

Tumor lysis syndrome occurred in 10 patients, but clinically important sequelae occurred in only 3 of those patients, 2 of whom had severe sequelae. After adjustments were made to dosing schedule, no further cases occurred.

Other side effects included mild diarrhea, upper respiratory tract infection, nausea, and grade 3 or 4 neutropenia, which occurred in 41%-52% of patients. Serious adverse events included febrile neutropenia in 6% of patients, pneumonia in 4%, upper respiratory tract infection in 3%, and immune thrombocytopenia in 3%.

Among the patients with an adverse prognosis, treatment response rates ranged from 71% to 79%, depending on the subgroup. For example, the response rate was 79% in 70 patients with resistance to fludarabine, and 71% in 31 patients with chromosome 17p deletions.

New treatments, including ibrutinib monotherapy and idelalisib in combination with rituximab, have improved outcomes for patients with relapsed CLL, but despite these advances, complete remissions remain uncommon, the authors said.

“This first trial of venetoclax showed the potential of BCL2 antagonism as an additional therapeutic avenue for patients with relapsed CLL,” they wrote, adding that the 79% overall response rate in this study – including deep responses and complete responses without minimal residual disease in patients up to age 86 years and patients with poor prognostic factors – “provides support for further development of venetoclax as a treatment option for patients with heavily pretreated relapsed or refractory CLL or SLL.”

Of note, the Food and Drug Administration on Jan. 28 – the date this study was released – granted venetoclax Breakthrough Therapy Designation for use in combination with hypomethylating agents for the treatment of acute myeloid leukemia patients who aren’t eligible for standard induction chemotherapy. The designation – the third for the agent – is supported by data from a single study of untreated patients aged 65 years or older with AML. Prior venetoclax Breakthrough Therapy Designations were granted in April 2015 for its use as monotherapy in patients with refractory CLL who have the 17p deletion genetic mutation, and in January for its use with rituximab for the treatment of relapsed/refractory CLL.

AbbVie and Genentech supported the study. Dr. Roberts reported receiving grant support and study drugs form AbbVie, serving as an investigator in trials sponsored by Genentech, AbbVie, Janssen, and Beigene, and receiving institutional research funding from Genentech for the development of venetoclax. His coauthors reported ties to various pharmaceutical companies.

sworcester@frontlinemedcom.com

Daily oral treatment with venetoclax induced substantial responses with manageable adverse effects in patients with relapsed chronic lymphocytic leukemia or small lymphocytic lymphoma in a first-in-human phase I dose-escalation study.

The promising effects of the highly selective investigational inhibitor of BCL2 – a protein central to the survival of CLL cells – were noted even in patients with poor prognostic features, who comprised 89% of the cohort, reported Dr. Andrew W. Roberts of Royal Melbourne Hospital, Australia, and his colleagues. The study was published online Jan. 28 in The New England Journal of Medicine.

In the dose escalation phase of the study, 56 patients received active treatment at doses raging from 150 to 1,200 mg daily, and 60 additional patients received weekly stepwise ramp-up with doses beginning at 20 mg daily with weekly increases to 50 mg, 100 mg, and 200 mg daily up to the target dose of 400 mg daily. The patients had received a median of 3 previous therapies (range, 1-11).

Of 116 treated patients, 92 (79%) had a response, and 20% achieved complete remission, including 5% with no minimal residual disease on flow cytometry, the investigators said (N Engl J Med. 2016;374:311-22).

Venetoclax was active at all doses used in the study, and no maximum tolerated dose was identified.

Tumor lysis syndrome occurred in 10 patients, but clinically important sequelae occurred in only 3 of those patients, 2 of whom had severe sequelae. After adjustments were made to dosing schedule, no further cases occurred.

Other side effects included mild diarrhea, upper respiratory tract infection, nausea, and grade 3 or 4 neutropenia, which occurred in 41%-52% of patients. Serious adverse events included febrile neutropenia in 6% of patients, pneumonia in 4%, upper respiratory tract infection in 3%, and immune thrombocytopenia in 3%.

Among the patients with an adverse prognosis, treatment response rates ranged from 71% to 79%, depending on the subgroup. For example, the response rate was 79% in 70 patients with resistance to fludarabine, and 71% in 31 patients with chromosome 17p deletions.

New treatments, including ibrutinib monotherapy and idelalisib in combination with rituximab, have improved outcomes for patients with relapsed CLL, but despite these advances, complete remissions remain uncommon, the authors said.

“This first trial of venetoclax showed the potential of BCL2 antagonism as an additional therapeutic avenue for patients with relapsed CLL,” they wrote, adding that the 79% overall response rate in this study – including deep responses and complete responses without minimal residual disease in patients up to age 86 years and patients with poor prognostic factors – “provides support for further development of venetoclax as a treatment option for patients with heavily pretreated relapsed or refractory CLL or SLL.”

Of note, the Food and Drug Administration on Jan. 28 – the date this study was released – granted venetoclax Breakthrough Therapy Designation for use in combination with hypomethylating agents for the treatment of acute myeloid leukemia patients who aren’t eligible for standard induction chemotherapy. The designation – the third for the agent – is supported by data from a single study of untreated patients aged 65 years or older with AML. Prior venetoclax Breakthrough Therapy Designations were granted in April 2015 for its use as monotherapy in patients with refractory CLL who have the 17p deletion genetic mutation, and in January for its use with rituximab for the treatment of relapsed/refractory CLL.

AbbVie and Genentech supported the study. Dr. Roberts reported receiving grant support and study drugs form AbbVie, serving as an investigator in trials sponsored by Genentech, AbbVie, Janssen, and Beigene, and receiving institutional research funding from Genentech for the development of venetoclax. His coauthors reported ties to various pharmaceutical companies.

sworcester@frontlinemedcom.com

Daily oral treatment with venetoclax induced substantial responses with manageable adverse effects in patients with relapsed chronic lymphocytic leukemia or small lymphocytic lymphoma in a first-in-human phase I dose-escalation study.

The promising effects of the highly selective investigational inhibitor of BCL2 – a protein central to the survival of CLL cells – were noted even in patients with poor prognostic features, who comprised 89% of the cohort, reported Dr. Andrew W. Roberts of Royal Melbourne Hospital, Australia, and his colleagues. The study was published online Jan. 28 in The New England Journal of Medicine.

In the dose escalation phase of the study, 56 patients received active treatment at doses raging from 150 to 1,200 mg daily, and 60 additional patients received weekly stepwise ramp-up with doses beginning at 20 mg daily with weekly increases to 50 mg, 100 mg, and 200 mg daily up to the target dose of 400 mg daily. The patients had received a median of 3 previous therapies (range, 1-11).

Of 116 treated patients, 92 (79%) had a response, and 20% achieved complete remission, including 5% with no minimal residual disease on flow cytometry, the investigators said (N Engl J Med. 2016;374:311-22).

Venetoclax was active at all doses used in the study, and no maximum tolerated dose was identified.

Tumor lysis syndrome occurred in 10 patients, but clinically important sequelae occurred in only 3 of those patients, 2 of whom had severe sequelae. After adjustments were made to dosing schedule, no further cases occurred.

Other side effects included mild diarrhea, upper respiratory tract infection, nausea, and grade 3 or 4 neutropenia, which occurred in 41%-52% of patients. Serious adverse events included febrile neutropenia in 6% of patients, pneumonia in 4%, upper respiratory tract infection in 3%, and immune thrombocytopenia in 3%.

Among the patients with an adverse prognosis, treatment response rates ranged from 71% to 79%, depending on the subgroup. For example, the response rate was 79% in 70 patients with resistance to fludarabine, and 71% in 31 patients with chromosome 17p deletions.

New treatments, including ibrutinib monotherapy and idelalisib in combination with rituximab, have improved outcomes for patients with relapsed CLL, but despite these advances, complete remissions remain uncommon, the authors said.

“This first trial of venetoclax showed the potential of BCL2 antagonism as an additional therapeutic avenue for patients with relapsed CLL,” they wrote, adding that the 79% overall response rate in this study – including deep responses and complete responses without minimal residual disease in patients up to age 86 years and patients with poor prognostic factors – “provides support for further development of venetoclax as a treatment option for patients with heavily pretreated relapsed or refractory CLL or SLL.”

Of note, the Food and Drug Administration on Jan. 28 – the date this study was released – granted venetoclax Breakthrough Therapy Designation for use in combination with hypomethylating agents for the treatment of acute myeloid leukemia patients who aren’t eligible for standard induction chemotherapy. The designation – the third for the agent – is supported by data from a single study of untreated patients aged 65 years or older with AML. Prior venetoclax Breakthrough Therapy Designations were granted in April 2015 for its use as monotherapy in patients with refractory CLL who have the 17p deletion genetic mutation, and in January for its use with rituximab for the treatment of relapsed/refractory CLL.

AbbVie and Genentech supported the study. Dr. Roberts reported receiving grant support and study drugs form AbbVie, serving as an investigator in trials sponsored by Genentech, AbbVie, Janssen, and Beigene, and receiving institutional research funding from Genentech for the development of venetoclax. His coauthors reported ties to various pharmaceutical companies.

sworcester@frontlinemedcom.com

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.”

Microgaph showing AML

Investigators have discovered that an olfactory receptor in white blood cells responds to Sandalore, a synthetic odorant with a sandalwood note.

The team identified 7 olfactory receptors in a chronic myeloid leukemia (CML) cell line that were also present in white blood cells from patients with acute myeloid leukemia (AML).

One of the highest expressed receptors, OR2AT4, responded to Sandalore by fighting off the leukemia.

The investigators believe this finding could aid the development of new treatment for AML.

Hanns Hatt, PhD, DrMed, of the Ruhr-Universität Bochum in Germany, and his colleagues described this work in Cell Death Discovery.

The team found 7 olfactory receptors in the CML cell line K562—OR51B4, OR51B5, OR52D1, OR2W3, OR2B6, OR2AT4, and OR51I2. These receptors were also expressed in samples from AML patients.

The investigators then found that OR2AT4, one of the highest expressed olfactory receptors, is activated by Sandalore.

If Sandalore was used to activate the receptor, it inhibited leukemia cell proliferation and induced apoptosis in the leukemia cells. It also induced erythroid differentiation.

In 2014, Dr Hatt and his colleagues discovered that OR2AT4 is present in skin cells and that, by activating it with sandalwood aroma, wound healing is promoted. Through a series of tests, the team identified the signaling pathways underlying the observed effects.

With the current study, the investigators found that if Sandalore activates OR2AT4 in the context of CML or AML, processes similar to those in the olfactory cells in the nose start in blood cells.

The concentration of calcium ions in the cells increases. This, in turn, activates signaling pathways in which phosphate groups are transmitted to MAP kinases.

“This could be a new starting point for the development of leukemia treatment,” Dr Hatt said. “Acute myeloid leukemia, in particular, is a disease for which specific medication is not, as yet, available.”

Microgaph showing AML

Investigators have discovered that an olfactory receptor in white blood cells responds to Sandalore, a synthetic odorant with a sandalwood note.

The team identified 7 olfactory receptors in a chronic myeloid leukemia (CML) cell line that were also present in white blood cells from patients with acute myeloid leukemia (AML).

One of the highest expressed receptors, OR2AT4, responded to Sandalore by fighting off the leukemia.

The investigators believe this finding could aid the development of new treatment for AML.

Hanns Hatt, PhD, DrMed, of the Ruhr-Universität Bochum in Germany, and his colleagues described this work in Cell Death Discovery.

The team found 7 olfactory receptors in the CML cell line K562—OR51B4, OR51B5, OR52D1, OR2W3, OR2B6, OR2AT4, and OR51I2. These receptors were also expressed in samples from AML patients.

The investigators then found that OR2AT4, one of the highest expressed olfactory receptors, is activated by Sandalore.

If Sandalore was used to activate the receptor, it inhibited leukemia cell proliferation and induced apoptosis in the leukemia cells. It also induced erythroid differentiation.

In 2014, Dr Hatt and his colleagues discovered that OR2AT4 is present in skin cells and that, by activating it with sandalwood aroma, wound healing is promoted. Through a series of tests, the team identified the signaling pathways underlying the observed effects.

With the current study, the investigators found that if Sandalore activates OR2AT4 in the context of CML or AML, processes similar to those in the olfactory cells in the nose start in blood cells.

The concentration of calcium ions in the cells increases. This, in turn, activates signaling pathways in which phosphate groups are transmitted to MAP kinases.

“This could be a new starting point for the development of leukemia treatment,” Dr Hatt said. “Acute myeloid leukemia, in particular, is a disease for which specific medication is not, as yet, available.”

Microgaph showing AML

Investigators have discovered that an olfactory receptor in white blood cells responds to Sandalore, a synthetic odorant with a sandalwood note.

The team identified 7 olfactory receptors in a chronic myeloid leukemia (CML) cell line that were also present in white blood cells from patients with acute myeloid leukemia (AML).

One of the highest expressed receptors, OR2AT4, responded to Sandalore by fighting off the leukemia.

The investigators believe this finding could aid the development of new treatment for AML.

Hanns Hatt, PhD, DrMed, of the Ruhr-Universität Bochum in Germany, and his colleagues described this work in Cell Death Discovery.

The team found 7 olfactory receptors in the CML cell line K562—OR51B4, OR51B5, OR52D1, OR2W3, OR2B6, OR2AT4, and OR51I2. These receptors were also expressed in samples from AML patients.

The investigators then found that OR2AT4, one of the highest expressed olfactory receptors, is activated by Sandalore.

If Sandalore was used to activate the receptor, it inhibited leukemia cell proliferation and induced apoptosis in the leukemia cells. It also induced erythroid differentiation.

In 2014, Dr Hatt and his colleagues discovered that OR2AT4 is present in skin cells and that, by activating it with sandalwood aroma, wound healing is promoted. Through a series of tests, the team identified the signaling pathways underlying the observed effects.

With the current study, the investigators found that if Sandalore activates OR2AT4 in the context of CML or AML, processes similar to those in the olfactory cells in the nose start in blood cells.

The concentration of calcium ions in the cells increases. This, in turn, activates signaling pathways in which phosphate groups are transmitted to MAP kinases.

“This could be a new starting point for the development of leukemia treatment,” Dr Hatt said. “Acute myeloid leukemia, in particular, is a disease for which specific medication is not, as yet, available.”

Cancer patient receiving

chemotherapy

Photo by Rhoda Baer

Loved ones of cancer patients often turn to the Internet for further information about the disease, but they are less inclined to seek emotional support from social media forums, according to a study published in Computers, Informatics, Nursing.

It is fairly common for loved ones of cancer patients to develop depression or anxiety disorders as a result of the diagnosis, but there aren’t many studies focusing specifically on cancer patients’ caregivers and family members, said study author Carolyn Lauckner, PhD, of the University of Georgia in Athens.

“I think, sometimes, the loved ones and caregivers get forgotten about,” she said. “And that’s why I wanted to research this population to see if there are ways that we can better support these individuals.”

Dr Lauckner surveyed 191 people whose loved ones were diagnosed with cancer in the past year or who were currently acting as caregivers to someone with cancer. The motivation behind the research was personal for Dr Lauckner.

“I went through a period of time where I had 3 loved ones diagnosed within a short amount of time,” she said. “I had these experiences where I heard about the diagnosis and I would go online to look it up, and then I would immediately become terrified and freak out about all the stuff I read online.”

Like Dr Lauckner, more than 75% of the subjects she surveyed searched online for information on a loved one’s disease. Most looked for treatment options, prevention strategies and risk factors, and prognosis information.

“I was pleasantly surprised by the amount of people who said that they were looking for prevention information online and detection information,” Dr Lauckner said. “[T]hat shows that not only are they concerned for their loved one but they’re also concerned about how they themselves can avoid cancer, which, from a public health perspective, is great.”

Respondents were less inclined to view blogs or go online to hear about others’ cancer experiences. These kinds of sites were linked to negative emotions for participants, such as fear, sadness, and anger.

“A lot of people, especially in the cancer realm, they will use blogs or discussion posts to vent and to talk about the harsh realities of living with an illness,” Dr Lauckner said.

“And while I think that that is beneficial for both the person who is writing it and potentially for some people who want an idea of what to expect, when someone is dealing with the prospect of their loved one having to go through that experience, it can be extremely distressing.”

The most commonly visited websites were those of charitable organizations like the American Cancer Society, which were associated with positive emotions. Dr Lauckner said she found this information encouraging because it shows that participants were consulting reliable sources of information and not being swayed by personal accounts as much.

Dr Lauckner ultimately wants to build on the information gleaned in this study to determine the most effective use of social media and technology to distribute cancer prevention and risk reduction messages to the public.

Cancer patient receiving

chemotherapy

Photo by Rhoda Baer

Loved ones of cancer patients often turn to the Internet for further information about the disease, but they are less inclined to seek emotional support from social media forums, according to a study published in Computers, Informatics, Nursing.

It is fairly common for loved ones of cancer patients to develop depression or anxiety disorders as a result of the diagnosis, but there aren’t many studies focusing specifically on cancer patients’ caregivers and family members, said study author Carolyn Lauckner, PhD, of the University of Georgia in Athens.

“I think, sometimes, the loved ones and caregivers get forgotten about,” she said. “And that’s why I wanted to research this population to see if there are ways that we can better support these individuals.”

Dr Lauckner surveyed 191 people whose loved ones were diagnosed with cancer in the past year or who were currently acting as caregivers to someone with cancer. The motivation behind the research was personal for Dr Lauckner.

“I went through a period of time where I had 3 loved ones diagnosed within a short amount of time,” she said. “I had these experiences where I heard about the diagnosis and I would go online to look it up, and then I would immediately become terrified and freak out about all the stuff I read online.”

Like Dr Lauckner, more than 75% of the subjects she surveyed searched online for information on a loved one’s disease. Most looked for treatment options, prevention strategies and risk factors, and prognosis information.

“I was pleasantly surprised by the amount of people who said that they were looking for prevention information online and detection information,” Dr Lauckner said. “[T]hat shows that not only are they concerned for their loved one but they’re also concerned about how they themselves can avoid cancer, which, from a public health perspective, is great.”

Respondents were less inclined to view blogs or go online to hear about others’ cancer experiences. These kinds of sites were linked to negative emotions for participants, such as fear, sadness, and anger.

“A lot of people, especially in the cancer realm, they will use blogs or discussion posts to vent and to talk about the harsh realities of living with an illness,” Dr Lauckner said.

“And while I think that that is beneficial for both the person who is writing it and potentially for some people who want an idea of what to expect, when someone is dealing with the prospect of their loved one having to go through that experience, it can be extremely distressing.”

The most commonly visited websites were those of charitable organizations like the American Cancer Society, which were associated with positive emotions. Dr Lauckner said she found this information encouraging because it shows that participants were consulting reliable sources of information and not being swayed by personal accounts as much.

Dr Lauckner ultimately wants to build on the information gleaned in this study to determine the most effective use of social media and technology to distribute cancer prevention and risk reduction messages to the public.

Cancer patient receiving

chemotherapy

Photo by Rhoda Baer

Loved ones of cancer patients often turn to the Internet for further information about the disease, but they are less inclined to seek emotional support from social media forums, according to a study published in Computers, Informatics, Nursing.

It is fairly common for loved ones of cancer patients to develop depression or anxiety disorders as a result of the diagnosis, but there aren’t many studies focusing specifically on cancer patients’ caregivers and family members, said study author Carolyn Lauckner, PhD, of the University of Georgia in Athens.

“I think, sometimes, the loved ones and caregivers get forgotten about,” she said. “And that’s why I wanted to research this population to see if there are ways that we can better support these individuals.”

Dr Lauckner surveyed 191 people whose loved ones were diagnosed with cancer in the past year or who were currently acting as caregivers to someone with cancer. The motivation behind the research was personal for Dr Lauckner.

“I went through a period of time where I had 3 loved ones diagnosed within a short amount of time,” she said. “I had these experiences where I heard about the diagnosis and I would go online to look it up, and then I would immediately become terrified and freak out about all the stuff I read online.”

Like Dr Lauckner, more than 75% of the subjects she surveyed searched online for information on a loved one’s disease. Most looked for treatment options, prevention strategies and risk factors, and prognosis information.

“I was pleasantly surprised by the amount of people who said that they were looking for prevention information online and detection information,” Dr Lauckner said. “[T]hat shows that not only are they concerned for their loved one but they’re also concerned about how they themselves can avoid cancer, which, from a public health perspective, is great.”

Respondents were less inclined to view blogs or go online to hear about others’ cancer experiences. These kinds of sites were linked to negative emotions for participants, such as fear, sadness, and anger.

“A lot of people, especially in the cancer realm, they will use blogs or discussion posts to vent and to talk about the harsh realities of living with an illness,” Dr Lauckner said.

“And while I think that that is beneficial for both the person who is writing it and potentially for some people who want an idea of what to expect, when someone is dealing with the prospect of their loved one having to go through that experience, it can be extremely distressing.”

The most commonly visited websites were those of charitable organizations like the American Cancer Society, which were associated with positive emotions. Dr Lauckner said she found this information encouraging because it shows that participants were consulting reliable sources of information and not being swayed by personal accounts as much.

Dr Lauckner ultimately wants to build on the information gleaned in this study to determine the most effective use of social media and technology to distribute cancer prevention and risk reduction messages to the public.

ALL patient

Photo by Bill Branson

New research suggests that body mass index (BMI) is an inadequate method for estimating changes in body fat and obesity in children with acute lymphoblastic leukemia (ALL).

Investigators found a discrepancy between BMI and body composition in this population, and the cause of this appeared to be increases in body fat with simultaneous loss of lean muscle mass during treatment.

The team reported these findings in Leukemia & Lymphoma.

With previous work, the investigators found that obese children diagnosed with high-risk ALL had a 50% greater risk of their disease recurring compared with children who were not obese.

“In my lab, we’ve seen a direct interaction between fat cells and leukemia cells that may help explain this increased risk of disease relapse,” said study author Steven Mittelman, MD, PhD, of Children’s Hospital Los Angeles in California.

“It appears that the fat cells ‘protect’ leukemia cells, making them less susceptible to chemotherapy and making an accurate measure of body fat essential.”

To determine if BMI accurately reflects body fat in ALL, the investigators analyzed 50 patients. They were predominantly Hispanic, between the ages of 10 to 21, and had newly diagnosed high-risk B-precursor ALL or T-cell ALL.

The team measured the percentage of total body fat and lean muscle mass at the time of diagnosis, at the end of induction, and at the end of delayed intensification. They also calculated BMI Z-score—a measure of how a given child’s BMI deviates from a population of children of the same age and sex—at these time points.

The investigators said sarcopenic obesity—gain in body fat percentage with loss of lean muscle mass—was “surprisingly common” during ALL treatment.

And sarcopenic obesity resulted in poor correlation between changes in BMI Z-score and body fat percentage overall (r=-0.05), within the time points (r=0.02), and within patients (r=-0.09, all not significant). BMI Z-score and body fat percentage changed in opposite directions in more than 50% of interval assessments.

“We found that change in BMI did not reflect changes in body fat or obesity,” said Etan Orgel, MD, of Children’s Hospital Los Angeles.

“In some patients, reaching a ‘healthy’ BMI was due solely to loss of muscle even while body fat continued to rise. Based on these results, we believe that evaluation of obesity in patients with leukemia should include direct measures of body composition.”

ALL patient

Photo by Bill Branson

New research suggests that body mass index (BMI) is an inadequate method for estimating changes in body fat and obesity in children with acute lymphoblastic leukemia (ALL).

Investigators found a discrepancy between BMI and body composition in this population, and the cause of this appeared to be increases in body fat with simultaneous loss of lean muscle mass during treatment.

The team reported these findings in Leukemia & Lymphoma.

With previous work, the investigators found that obese children diagnosed with high-risk ALL had a 50% greater risk of their disease recurring compared with children who were not obese.

“In my lab, we’ve seen a direct interaction between fat cells and leukemia cells that may help explain this increased risk of disease relapse,” said study author Steven Mittelman, MD, PhD, of Children’s Hospital Los Angeles in California.

“It appears that the fat cells ‘protect’ leukemia cells, making them less susceptible to chemotherapy and making an accurate measure of body fat essential.”

To determine if BMI accurately reflects body fat in ALL, the investigators analyzed 50 patients. They were predominantly Hispanic, between the ages of 10 to 21, and had newly diagnosed high-risk B-precursor ALL or T-cell ALL.

The team measured the percentage of total body fat and lean muscle mass at the time of diagnosis, at the end of induction, and at the end of delayed intensification. They also calculated BMI Z-score—a measure of how a given child’s BMI deviates from a population of children of the same age and sex—at these time points.

The investigators said sarcopenic obesity—gain in body fat percentage with loss of lean muscle mass—was “surprisingly common” during ALL treatment.

And sarcopenic obesity resulted in poor correlation between changes in BMI Z-score and body fat percentage overall (r=-0.05), within the time points (r=0.02), and within patients (r=-0.09, all not significant). BMI Z-score and body fat percentage changed in opposite directions in more than 50% of interval assessments.

“We found that change in BMI did not reflect changes in body fat or obesity,” said Etan Orgel, MD, of Children’s Hospital Los Angeles.

“In some patients, reaching a ‘healthy’ BMI was due solely to loss of muscle even while body fat continued to rise. Based on these results, we believe that evaluation of obesity in patients with leukemia should include direct measures of body composition.”

ALL patient

Photo by Bill Branson

New research suggests that body mass index (BMI) is an inadequate method for estimating changes in body fat and obesity in children with acute lymphoblastic leukemia (ALL).

Investigators found a discrepancy between BMI and body composition in this population, and the cause of this appeared to be increases in body fat with simultaneous loss of lean muscle mass during treatment.

The team reported these findings in Leukemia & Lymphoma.

With previous work, the investigators found that obese children diagnosed with high-risk ALL had a 50% greater risk of their disease recurring compared with children who were not obese.

“In my lab, we’ve seen a direct interaction between fat cells and leukemia cells that may help explain this increased risk of disease relapse,” said study author Steven Mittelman, MD, PhD, of Children’s Hospital Los Angeles in California.

“It appears that the fat cells ‘protect’ leukemia cells, making them less susceptible to chemotherapy and making an accurate measure of body fat essential.”

To determine if BMI accurately reflects body fat in ALL, the investigators analyzed 50 patients. They were predominantly Hispanic, between the ages of 10 to 21, and had newly diagnosed high-risk B-precursor ALL or T-cell ALL.

The team measured the percentage of total body fat and lean muscle mass at the time of diagnosis, at the end of induction, and at the end of delayed intensification. They also calculated BMI Z-score—a measure of how a given child’s BMI deviates from a population of children of the same age and sex—at these time points.

The investigators said sarcopenic obesity—gain in body fat percentage with loss of lean muscle mass—was “surprisingly common” during ALL treatment.

And sarcopenic obesity resulted in poor correlation between changes in BMI Z-score and body fat percentage overall (r=-0.05), within the time points (r=0.02), and within patients (r=-0.09, all not significant). BMI Z-score and body fat percentage changed in opposite directions in more than 50% of interval assessments.

“We found that change in BMI did not reflect changes in body fat or obesity,” said Etan Orgel, MD, of Children’s Hospital Los Angeles.

“In some patients, reaching a ‘healthy’ BMI was due solely to loss of muscle even while body fat continued to rise. Based on these results, we believe that evaluation of obesity in patients with leukemia should include direct measures of body composition.”

Doctor using a smartphone

Photo by Daniel Sone

Understanding and integrating patients’ cultural beliefs into cancer treatment plans may help improve their acceptance of and adherence to treatment in multicultural settings, according to research published in the Journal of Global Oncology.

Researchers examined traditional Maya healers’ understanding of cancer and found that, although there are key differences between Maya and Western medicine perspectives, they also share many fundamental concepts.

“Maya healers understand cancer in remarkably similar ways to Western doctors,” said lead study author Mónica Berger-González, PhD, of the Institute for Environmental Decisions at ETH Zurich in Switzerland.

“Recognizing this is the first step to bridging the gap between cultures and ultimately providing better, more effective services for indigenous populations.”

Nearly half of the population in Guatemala (approximately 5.4 million people) relies on Maya medicine. Traditional healers have practiced in Guatemala for more than 2000 years, with the healing tradition passed down orally and through apprenticeship.

According to the authors, this is one of the first studies to explore the subject of Maya healers and cancer across several ethno-linguistic groups, and limited data exist on survival outcomes.

Dr Berger-González and her colleagues conducted in-depth interviews with 67 healers across various ethnic and language groups in Guatemala, exploring how its indigenous people define and treat cancer.

Of the Maya healers interviewed, 46% were illiterate. Although only 36% were able to define the word cancer, most (85%) were familiar with the term and identified malignancy as a core characteristic of the disease, explaining the concept of metastasis clearly.

The analysis also revealed that Maya healers understand the origins of cancer in ways that align closely with Western medical concepts.

When asked to identify the physical causes of cancer, 10 of 17 causes provided correlated directly with cancer risk factors as understood in Western medicine. Healers cited causes such as the consumption of harmful foods (46.3%), hereditary conditions (29.6%), and lifestyle factors such as smoking or working with toxic substances (29.6%).

One notable difference identified between the 2 perspectives is that Maya healers’ view of cancer is not limited to the physical body, but rather includes a complex imbalance of the emotions, mind, and spirit.

The Maya treatment of cancer is consequently holistic and seeks to restore that balance. This is achieved through a combination of methods—such as regulating diet, plant therapy, detoxifying baths—as well as social, psychological, and spiritual methods, the latter of which, the authors note, is harder to grasp in Western medicine.

“If healthcare professionals do not understand indigenous peoples’ conception of cancer, these patients are far less likely to accept and adhere to treatment in the public healthcare system,” Dr Berger-González said.

Many indigenous people in Guatemala do not have access to Western medicine services, cannot afford them, or prefer Maya medicine even when Western medical treatment is available. Yet Western medicine practitioners have little to no training in multicultural management or traditional indigenous medicine.

The authors offer 3 key recommendations to help address the challenges of providing care in multicultural settings:

• Adequate training of healthcare professionals on cultural and social perceptions of cancer
• Increasing evidence-based research on traditional medicine
• Establishing national regulations on integrating traditional and Western medicine—following other countries like Peru, Brazil, and Ecuador, which have successfully incorporated these aspects of care.

The authors plan to continue their transdisciplinary research with the goal of providing biomedical evidence that advances different aspects of Maya medicine.

Doctor using a smartphone

Photo by Daniel Sone

Understanding and integrating patients’ cultural beliefs into cancer treatment plans may help improve their acceptance of and adherence to treatment in multicultural settings, according to research published in the Journal of Global Oncology.

Researchers examined traditional Maya healers’ understanding of cancer and found that, although there are key differences between Maya and Western medicine perspectives, they also share many fundamental concepts.

“Maya healers understand cancer in remarkably similar ways to Western doctors,” said lead study author Mónica Berger-González, PhD, of the Institute for Environmental Decisions at ETH Zurich in Switzerland.

“Recognizing this is the first step to bridging the gap between cultures and ultimately providing better, more effective services for indigenous populations.”

Nearly half of the population in Guatemala (approximately 5.4 million people) relies on Maya medicine. Traditional healers have practiced in Guatemala for more than 2000 years, with the healing tradition passed down orally and through apprenticeship.

According to the authors, this is one of the first studies to explore the subject of Maya healers and cancer across several ethno-linguistic groups, and limited data exist on survival outcomes.

Dr Berger-González and her colleagues conducted in-depth interviews with 67 healers across various ethnic and language groups in Guatemala, exploring how its indigenous people define and treat cancer.

Of the Maya healers interviewed, 46% were illiterate. Although only 36% were able to define the word cancer, most (85%) were familiar with the term and identified malignancy as a core characteristic of the disease, explaining the concept of metastasis clearly.

The analysis also revealed that Maya healers understand the origins of cancer in ways that align closely with Western medical concepts.

When asked to identify the physical causes of cancer, 10 of 17 causes provided correlated directly with cancer risk factors as understood in Western medicine. Healers cited causes such as the consumption of harmful foods (46.3%), hereditary conditions (29.6%), and lifestyle factors such as smoking or working with toxic substances (29.6%).

One notable difference identified between the 2 perspectives is that Maya healers’ view of cancer is not limited to the physical body, but rather includes a complex imbalance of the emotions, mind, and spirit.

The Maya treatment of cancer is consequently holistic and seeks to restore that balance. This is achieved through a combination of methods—such as regulating diet, plant therapy, detoxifying baths—as well as social, psychological, and spiritual methods, the latter of which, the authors note, is harder to grasp in Western medicine.

“If healthcare professionals do not understand indigenous peoples’ conception of cancer, these patients are far less likely to accept and adhere to treatment in the public healthcare system,” Dr Berger-González said.

Many indigenous people in Guatemala do not have access to Western medicine services, cannot afford them, or prefer Maya medicine even when Western medical treatment is available. Yet Western medicine practitioners have little to no training in multicultural management or traditional indigenous medicine.

The authors offer 3 key recommendations to help address the challenges of providing care in multicultural settings:

• Adequate training of healthcare professionals on cultural and social perceptions of cancer
• Increasing evidence-based research on traditional medicine
• Establishing national regulations on integrating traditional and Western medicine—following other countries like Peru, Brazil, and Ecuador, which have successfully incorporated these aspects of care.

The authors plan to continue their transdisciplinary research with the goal of providing biomedical evidence that advances different aspects of Maya medicine.

Doctor using a smartphone

Photo by Daniel Sone

Understanding and integrating patients’ cultural beliefs into cancer treatment plans may help improve their acceptance of and adherence to treatment in multicultural settings, according to research published in the Journal of Global Oncology.

Researchers examined traditional Maya healers’ understanding of cancer and found that, although there are key differences between Maya and Western medicine perspectives, they also share many fundamental concepts.

“Maya healers understand cancer in remarkably similar ways to Western doctors,” said lead study author Mónica Berger-González, PhD, of the Institute for Environmental Decisions at ETH Zurich in Switzerland.

“Recognizing this is the first step to bridging the gap between cultures and ultimately providing better, more effective services for indigenous populations.”

Nearly half of the population in Guatemala (approximately 5.4 million people) relies on Maya medicine. Traditional healers have practiced in Guatemala for more than 2000 years, with the healing tradition passed down orally and through apprenticeship.

According to the authors, this is one of the first studies to explore the subject of Maya healers and cancer across several ethno-linguistic groups, and limited data exist on survival outcomes.

Dr Berger-González and her colleagues conducted in-depth interviews with 67 healers across various ethnic and language groups in Guatemala, exploring how its indigenous people define and treat cancer.

Of the Maya healers interviewed, 46% were illiterate. Although only 36% were able to define the word cancer, most (85%) were familiar with the term and identified malignancy as a core characteristic of the disease, explaining the concept of metastasis clearly.

The analysis also revealed that Maya healers understand the origins of cancer in ways that align closely with Western medical concepts.

When asked to identify the physical causes of cancer, 10 of 17 causes provided correlated directly with cancer risk factors as understood in Western medicine. Healers cited causes such as the consumption of harmful foods (46.3%), hereditary conditions (29.6%), and lifestyle factors such as smoking or working with toxic substances (29.6%).

One notable difference identified between the 2 perspectives is that Maya healers’ view of cancer is not limited to the physical body, but rather includes a complex imbalance of the emotions, mind, and spirit.

The Maya treatment of cancer is consequently holistic and seeks to restore that balance. This is achieved through a combination of methods—such as regulating diet, plant therapy, detoxifying baths—as well as social, psychological, and spiritual methods, the latter of which, the authors note, is harder to grasp in Western medicine.

“If healthcare professionals do not understand indigenous peoples’ conception of cancer, these patients are far less likely to accept and adhere to treatment in the public healthcare system,” Dr Berger-González said.

Many indigenous people in Guatemala do not have access to Western medicine services, cannot afford them, or prefer Maya medicine even when Western medical treatment is available. Yet Western medicine practitioners have little to no training in multicultural management or traditional indigenous medicine.

The authors offer 3 key recommendations to help address the challenges of providing care in multicultural settings:

• Adequate training of healthcare professionals on cultural and social perceptions of cancer
• Increasing evidence-based research on traditional medicine
• Establishing national regulations on integrating traditional and Western medicine—following other countries like Peru, Brazil, and Ecuador, which have successfully incorporated these aspects of care.

The authors plan to continue their transdisciplinary research with the goal of providing biomedical evidence that advances different aspects of Maya medicine.

Micrograph showing AML

Image by Lance Liotta

The US Food and Drug Administration (FDA) has granted a third breakthrough therapy designation for the BCL-2 inhibitor venetoclax (ABT-199).

This time, the designation is for venetoclax in combination with hypomethylating agents to treat patients with treatment-naïve acute myeloid leukemia (AML) who are ineligible for standard induction therapy.

Venetoclax previously received breakthrough designation as a single agent for patients with relapsed or refractory chronic lymphocytic leukemia (CLL) and in combination with rituximab to treat patients with relapsed or refractory CLL and 17p deletion.

Breakthrough therapy designation is designed to accelerate the development and review of medicines that demonstrate early clinical evidence of a substantial improvement over current treatment options for serious diseases.

Venetoclax is currently under investigation in a phase 1/2 trial in combination with low-dose cytarabine for treatment-naïve patients with AML and in a phase 1b study in combination with decitabine or azacitidine for treatment-naïve AML patients.

A phase 2 study of single-agent venetoclax in AML has been completed. The results were presented at ASH 2014.

At that time, the trial had enrolled 32 patients, 30 of whom had relapsed or refractory disease. Patients had a median age of 71 (range, 19 to 84), and half were male.

The overall response rate was 15.5%, with 1 patient achieving a complete response (CR) and 4 patients achieving a CR with incomplete count recovery (CRi).

The researchers noted that 3 of the patients who had a CR/CRi had IDH mutations. Two of these patients also achieved minimal residual disease negativity.

The median bone marrow blast count in evaluable patients decreased 36% after treatment, and 6 patients (19%) had at least a 50% reduction in bone marrow blasts.

Common adverse events following treatment (occurring in at least 25% of patients) included nausea, diarrhea, fatigue, neutropenia, and vomiting.

Grade 3 and 4 adverse events (occurring in 3 or more patients) included febrile neutropenia, anemia, and pneumonia. No patient died as a result of treatment-related adverse events.

Venetoclax is being developed by AbbVie in partnership with Genentech and Roche.

Micrograph showing AML

Image by Lance Liotta

The US Food and Drug Administration (FDA) has granted a third breakthrough therapy designation for the BCL-2 inhibitor venetoclax (ABT-199).

This time, the designation is for venetoclax in combination with hypomethylating agents to treat patients with treatment-naïve acute myeloid leukemia (AML) who are ineligible for standard induction therapy.

Venetoclax previously received breakthrough designation as a single agent for patients with relapsed or refractory chronic lymphocytic leukemia (CLL) and in combination with rituximab to treat patients with relapsed or refractory CLL and 17p deletion.

Breakthrough therapy designation is designed to accelerate the development and review of medicines that demonstrate early clinical evidence of a substantial improvement over current treatment options for serious diseases.

Venetoclax is currently under investigation in a phase 1/2 trial in combination with low-dose cytarabine for treatment-naïve patients with AML and in a phase 1b study in combination with decitabine or azacitidine for treatment-naïve AML patients.

A phase 2 study of single-agent venetoclax in AML has been completed. The results were presented at ASH 2014.

At that time, the trial had enrolled 32 patients, 30 of whom had relapsed or refractory disease. Patients had a median age of 71 (range, 19 to 84), and half were male.

The overall response rate was 15.5%, with 1 patient achieving a complete response (CR) and 4 patients achieving a CR with incomplete count recovery (CRi).

The researchers noted that 3 of the patients who had a CR/CRi had IDH mutations. Two of these patients also achieved minimal residual disease negativity.

The median bone marrow blast count in evaluable patients decreased 36% after treatment, and 6 patients (19%) had at least a 50% reduction in bone marrow blasts.

Common adverse events following treatment (occurring in at least 25% of patients) included nausea, diarrhea, fatigue, neutropenia, and vomiting.

Grade 3 and 4 adverse events (occurring in 3 or more patients) included febrile neutropenia, anemia, and pneumonia. No patient died as a result of treatment-related adverse events.

Venetoclax is being developed by AbbVie in partnership with Genentech and Roche.

Micrograph showing AML

Image by Lance Liotta

The US Food and Drug Administration (FDA) has granted a third breakthrough therapy designation for the BCL-2 inhibitor venetoclax (ABT-199).

This time, the designation is for venetoclax in combination with hypomethylating agents to treat patients with treatment-naïve acute myeloid leukemia (AML) who are ineligible for standard induction therapy.

Venetoclax previously received breakthrough designation as a single agent for patients with relapsed or refractory chronic lymphocytic leukemia (CLL) and in combination with rituximab to treat patients with relapsed or refractory CLL and 17p deletion.

Breakthrough therapy designation is designed to accelerate the development and review of medicines that demonstrate early clinical evidence of a substantial improvement over current treatment options for serious diseases.

Venetoclax is currently under investigation in a phase 1/2 trial in combination with low-dose cytarabine for treatment-naïve patients with AML and in a phase 1b study in combination with decitabine or azacitidine for treatment-naïve AML patients.

A phase 2 study of single-agent venetoclax in AML has been completed. The results were presented at ASH 2014.

At that time, the trial had enrolled 32 patients, 30 of whom had relapsed or refractory disease. Patients had a median age of 71 (range, 19 to 84), and half were male.

The overall response rate was 15.5%, with 1 patient achieving a complete response (CR) and 4 patients achieving a CR with incomplete count recovery (CRi).

The researchers noted that 3 of the patients who had a CR/CRi had IDH mutations. Two of these patients also achieved minimal residual disease negativity.

The median bone marrow blast count in evaluable patients decreased 36% after treatment, and 6 patients (19%) had at least a 50% reduction in bone marrow blasts.

Common adverse events following treatment (occurring in at least 25% of patients) included nausea, diarrhea, fatigue, neutropenia, and vomiting.

Grade 3 and 4 adverse events (occurring in 3 or more patients) included febrile neutropenia, anemia, and pneumonia. No patient died as a result of treatment-related adverse events.

Venetoclax is being developed by AbbVie in partnership with Genentech and Roche.

Cancer patient

receiving chemotherapy

Photo by Rhoda Baer

New research suggests that people living in the Appalachian region of the US are more likely to develop cancer than people in the rest of the country.

The study showed that Appalachians had a significantly higher incidence of cancer overall and higher rates of many solid tumor malignancies.

However, lymphoma rates were similar between Appalachians and non-Appalachians, and Appalachians had a significantly lower rate of myeloma.

This research was published in Cancer Epidemiology, Biomarkers & Prevention.

“The Appalachian region, which extends from parts of New York to Mississippi, spans 420 counties in 13 US states, and about 25 million people reside in this area,” said study author Reda Wilson, MPH, of the Centers for Disease Control and Prevention (CDC) in Atlanta, Georgia.

“This region is primarily made up of rural areas, with persistent poverty levels that are at least 20%, which is higher than the national average.”

In 2007, the CDC’s National Program of Cancer Registries (NPCR) published a comprehensive evaluation of cancer incidence rates in Appalachia between 2001 and 2003.

The data showed higher cancer rates in Appalachia than in the rest of the US. However, this publication had some shortcomings, including data that were not available for analysis.

“The current analyses reported here were performed to update the earlier evaluation by expanding the diagnosis years from 2004 to 2011 and including data on 100% of the Appalachian and non-Appalachian populations,” Wilson said.

For this study, Wilson and her colleagues used data from the NPCR and the National Cancer Institute’s Surveillance, Epidemiology, and End Results (SEER) program. Together, NPCR and SEER cover 100% of the US population.

The researchers analyzed the Appalachian population by region (north, central, and south Appalachia), gender, race (black and white only), and Appalachian Regional Commission-designated economic status (distressed, at-risk, transitional, competitive, and attainment). And the team compared these data with data on the non-Appalachian population.

The results showed that cancer incidence rates (IRs) were elevated among Appalachians regardless of how they were categorized. The IRs were per 100,000 people, age-adjusted to the 2000 US standard population.

The IR for all cancers was 565.8 for males in Appalachia and 543.0 for non-Appalachian males (P<0.05). And the cancer IRs for females were 428.7 in Appalachia and 418.2 outside the region (P<0.05).

There was no significant difference between the regions in IRs for lymphomas. The Hodgkin lymphoma IRs were 3.1 in Appalachian males, 3.2 in non-Appalachian males, and 2.5 for females in both regions.

The non-Hodgkin lymphoma IRs were 23.3 in Appalachian males, 23.4 in non-Appalachian males, 16.4 in Appalachian females, and 16.3 in non-Appalachian females.

Myeloma IRs were significantly lower in Appalachia (P<0.05). The myeloma IRs were 7.3 in Appalachian males, 7.5 in non-Appalachian males, 4.7 in Appalachian females, and 4.9 in non-Appalachian females.

There was no significant difference in leukemia IRs among males, but females in Appalachia had a significantly higher leukemia IR (P<0.05). The leukemia IRs were 16.9 in Appalachian males, 16.7 in non-Appalachian males, 10.4 in Appalachian females, and 10.2 in non-Appalachian females.

“Appalachia continues to have higher cancer incidence rates than the rest of the country,” Wilson said. “But a promising finding is that we’re seeing the gap narrow in the incidence rates between Appalachia and non-Appalachia since the 2007 analysis, with the exception of cancers of the oral cavity and pharynx, larynx, lung and bronchus, and thyroid.”

“This study helps identify types of cancer in the Appalachian region that could be reduced through more evidence-based screening and detection. Our study also emphasizes the importance of lifestyle changes needed to prevent and reduce cancer burden.”

The researchers noted that this study did not differentiate urban versus rural areas within each county, and data on screening and risk factors were based on self-reported responses.

Furthermore, cancer IRs were calculated for all ages combined and were not evaluated by age groups. Future analyses will be targeted toward capturing these finer details, Wilson said.

Cancer patient

receiving chemotherapy

Photo by Rhoda Baer

New research suggests that people living in the Appalachian region of the US are more likely to develop cancer than people in the rest of the country.

The study showed that Appalachians had a significantly higher incidence of cancer overall and higher rates of many solid tumor malignancies.

However, lymphoma rates were similar between Appalachians and non-Appalachians, and Appalachians had a significantly lower rate of myeloma.

This research was published in Cancer Epidemiology, Biomarkers & Prevention.

“The Appalachian region, which extends from parts of New York to Mississippi, spans 420 counties in 13 US states, and about 25 million people reside in this area,” said study author Reda Wilson, MPH, of the Centers for Disease Control and Prevention (CDC) in Atlanta, Georgia.

“This region is primarily made up of rural areas, with persistent poverty levels that are at least 20%, which is higher than the national average.”

In 2007, the CDC’s National Program of Cancer Registries (NPCR) published a comprehensive evaluation of cancer incidence rates in Appalachia between 2001 and 2003.

The data showed higher cancer rates in Appalachia than in the rest of the US. However, this publication had some shortcomings, including data that were not available for analysis.

“The current analyses reported here were performed to update the earlier evaluation by expanding the diagnosis years from 2004 to 2011 and including data on 100% of the Appalachian and non-Appalachian populations,” Wilson said.

For this study, Wilson and her colleagues used data from the NPCR and the National Cancer Institute’s Surveillance, Epidemiology, and End Results (SEER) program. Together, NPCR and SEER cover 100% of the US population.

The researchers analyzed the Appalachian population by region (north, central, and south Appalachia), gender, race (black and white only), and Appalachian Regional Commission-designated economic status (distressed, at-risk, transitional, competitive, and attainment). And the team compared these data with data on the non-Appalachian population.

The results showed that cancer incidence rates (IRs) were elevated among Appalachians regardless of how they were categorized. The IRs were per 100,000 people, age-adjusted to the 2000 US standard population.

The IR for all cancers was 565.8 for males in Appalachia and 543.0 for non-Appalachian males (P<0.05). And the cancer IRs for females were 428.7 in Appalachia and 418.2 outside the region (P<0.05).

There was no significant difference between the regions in IRs for lymphomas. The Hodgkin lymphoma IRs were 3.1 in Appalachian males, 3.2 in non-Appalachian males, and 2.5 for females in both regions.

The non-Hodgkin lymphoma IRs were 23.3 in Appalachian males, 23.4 in non-Appalachian males, 16.4 in Appalachian females, and 16.3 in non-Appalachian females.

Myeloma IRs were significantly lower in Appalachia (P<0.05). The myeloma IRs were 7.3 in Appalachian males, 7.5 in non-Appalachian males, 4.7 in Appalachian females, and 4.9 in non-Appalachian females.

There was no significant difference in leukemia IRs among males, but females in Appalachia had a significantly higher leukemia IR (P<0.05). The leukemia IRs were 16.9 in Appalachian males, 16.7 in non-Appalachian males, 10.4 in Appalachian females, and 10.2 in non-Appalachian females.

“Appalachia continues to have higher cancer incidence rates than the rest of the country,” Wilson said. “But a promising finding is that we’re seeing the gap narrow in the incidence rates between Appalachia and non-Appalachia since the 2007 analysis, with the exception of cancers of the oral cavity and pharynx, larynx, lung and bronchus, and thyroid.”

“This study helps identify types of cancer in the Appalachian region that could be reduced through more evidence-based screening and detection. Our study also emphasizes the importance of lifestyle changes needed to prevent and reduce cancer burden.”

The researchers noted that this study did not differentiate urban versus rural areas within each county, and data on screening and risk factors were based on self-reported responses.

Furthermore, cancer IRs were calculated for all ages combined and were not evaluated by age groups. Future analyses will be targeted toward capturing these finer details, Wilson said.

Cancer patient

receiving chemotherapy

Photo by Rhoda Baer

New research suggests that people living in the Appalachian region of the US are more likely to develop cancer than people in the rest of the country.

The study showed that Appalachians had a significantly higher incidence of cancer overall and higher rates of many solid tumor malignancies.

However, lymphoma rates were similar between Appalachians and non-Appalachians, and Appalachians had a significantly lower rate of myeloma.

This research was published in Cancer Epidemiology, Biomarkers & Prevention.

“The Appalachian region, which extends from parts of New York to Mississippi, spans 420 counties in 13 US states, and about 25 million people reside in this area,” said study author Reda Wilson, MPH, of the Centers for Disease Control and Prevention (CDC) in Atlanta, Georgia.

“This region is primarily made up of rural areas, with persistent poverty levels that are at least 20%, which is higher than the national average.”

In 2007, the CDC’s National Program of Cancer Registries (NPCR) published a comprehensive evaluation of cancer incidence rates in Appalachia between 2001 and 2003.

The data showed higher cancer rates in Appalachia than in the rest of the US. However, this publication had some shortcomings, including data that were not available for analysis.

“The current analyses reported here were performed to update the earlier evaluation by expanding the diagnosis years from 2004 to 2011 and including data on 100% of the Appalachian and non-Appalachian populations,” Wilson said.

For this study, Wilson and her colleagues used data from the NPCR and the National Cancer Institute’s Surveillance, Epidemiology, and End Results (SEER) program. Together, NPCR and SEER cover 100% of the US population.

The researchers analyzed the Appalachian population by region (north, central, and south Appalachia), gender, race (black and white only), and Appalachian Regional Commission-designated economic status (distressed, at-risk, transitional, competitive, and attainment). And the team compared these data with data on the non-Appalachian population.

The results showed that cancer incidence rates (IRs) were elevated among Appalachians regardless of how they were categorized. The IRs were per 100,000 people, age-adjusted to the 2000 US standard population.

The IR for all cancers was 565.8 for males in Appalachia and 543.0 for non-Appalachian males (P<0.05). And the cancer IRs for females were 428.7 in Appalachia and 418.2 outside the region (P<0.05).

There was no significant difference between the regions in IRs for lymphomas. The Hodgkin lymphoma IRs were 3.1 in Appalachian males, 3.2 in non-Appalachian males, and 2.5 for females in both regions.

The non-Hodgkin lymphoma IRs were 23.3 in Appalachian males, 23.4 in non-Appalachian males, 16.4 in Appalachian females, and 16.3 in non-Appalachian females.

Myeloma IRs were significantly lower in Appalachia (P<0.05). The myeloma IRs were 7.3 in Appalachian males, 7.5 in non-Appalachian males, 4.7 in Appalachian females, and 4.9 in non-Appalachian females.

There was no significant difference in leukemia IRs among males, but females in Appalachia had a significantly higher leukemia IR (P<0.05). The leukemia IRs were 16.9 in Appalachian males, 16.7 in non-Appalachian males, 10.4 in Appalachian females, and 10.2 in non-Appalachian females.

“Appalachia continues to have higher cancer incidence rates than the rest of the country,” Wilson said. “But a promising finding is that we’re seeing the gap narrow in the incidence rates between Appalachia and non-Appalachia since the 2007 analysis, with the exception of cancers of the oral cavity and pharynx, larynx, lung and bronchus, and thyroid.”

“This study helps identify types of cancer in the Appalachian region that could be reduced through more evidence-based screening and detection. Our study also emphasizes the importance of lifestyle changes needed to prevent and reduce cancer burden.”

The researchers noted that this study did not differentiate urban versus rural areas within each county, and data on screening and risk factors were based on self-reported responses.

Furthermore, cancer IRs were calculated for all ages combined and were not evaluated by age groups. Future analyses will be targeted toward capturing these finer details, Wilson said.

Acalabrutinib, an oral drug that is a more specific Bruton tyrosine kinase (BTK) inhibitor related to ibrutinib, produced a high response rate and durable remissions at a median 14 months of follow-up in an uncontrolled phase I/II trial of 61 adults with relapsed chronic lymphocytic leukemia, according to a report published online Jan. 28 in the New England Journal of Medicine.

The study patients had received a median of three previous therapies for CLL; 31% had chromosome 17p13.1 deletions, and 75% had unmutated immunoglobulin heavy-chain variable genes.

At the analysis, one patient had died from pneumonia at 13 months and CLL had progressed at 16 months in another patient. The overall response rate among the 60 evaluable patients was 95%, with a partial response in 85% and a partial response with lymphocytosis in 10%. The rate of stable disease was 5%. Adverse events were mostly mild and self-limiting; eight patients (13%) discontinued treatment, said Dr. John C. Byrd of the division of hematology, Ohio State University, Columbus, and his associates.

All 18 patients with chromosome 17p13.1 deletions responded to acalabrutinib, with a partial response in 89% and a partial response with lymphocytosis in 11%. One patient with a chromosome 17p13.1 deletion had disease progression, and this patient had a C481S (major clone) mutation in BTK and an L845F (minor clone) mutation in PLCγ2.

No cases of Richter’s transformation occurred.

Patients were treated at six sites in the United States and the United Kingdom. Four different doses of oral acalabrutinib were used in the first phase of the study; the drug’s low toxicity permitted a twice-daily 100-mg dose in phase II of the study. Twice-daily dosing promoted continuous levels of drug binding to BTK, according to the researchers. It is hoped that this approach will decrease drug resistance and will perhaps lower the rate of transformation into large-cell lymphoma.

Among patients who had cytopenia at entry into the study, platelet count improved in 62%, hemoglobin levels improved in 76%, and absolute neutrophil count improved in 80%. Among patients who had B symptoms (weight loss, night sweats, and fever) at study entry, those symptoms resolved in 88% by the third cycle of treatment and in 100% by the ninth cycle, Dr. Byrd and his associates said (N Engl J Med. 2016 Jan 28. doi: 10.1056/NEJMoa1509981). The most common adverse events were headache (43% of patients), diarrhea (39%), weight gain (26%), pyrexia (23%), and upper respiratory tract infection (23%). Fewer than 2% of patients developed severe diarrhea, rash, arthralgia, myalgia, bruising, or bleeding.

These findings offered strong justification to further investigate the efficacy and safety of acalabrutinib for relapsed CLL, and a phase III trial is now underway, the investigators added.

Acalabrutinib, an oral drug that is a more specific Bruton tyrosine kinase (BTK) inhibitor related to ibrutinib, produced a high response rate and durable remissions at a median 14 months of follow-up in an uncontrolled phase I/II trial of 61 adults with relapsed chronic lymphocytic leukemia, according to a report published online Jan. 28 in the New England Journal of Medicine.

The study patients had received a median of three previous therapies for CLL; 31% had chromosome 17p13.1 deletions, and 75% had unmutated immunoglobulin heavy-chain variable genes.

At the analysis, one patient had died from pneumonia at 13 months and CLL had progressed at 16 months in another patient. The overall response rate among the 60 evaluable patients was 95%, with a partial response in 85% and a partial response with lymphocytosis in 10%. The rate of stable disease was 5%. Adverse events were mostly mild and self-limiting; eight patients (13%) discontinued treatment, said Dr. John C. Byrd of the division of hematology, Ohio State University, Columbus, and his associates.

All 18 patients with chromosome 17p13.1 deletions responded to acalabrutinib, with a partial response in 89% and a partial response with lymphocytosis in 11%. One patient with a chromosome 17p13.1 deletion had disease progression, and this patient had a C481S (major clone) mutation in BTK and an L845F (minor clone) mutation in PLCγ2.

No cases of Richter’s transformation occurred.

Patients were treated at six sites in the United States and the United Kingdom. Four different doses of oral acalabrutinib were used in the first phase of the study; the drug’s low toxicity permitted a twice-daily 100-mg dose in phase II of the study. Twice-daily dosing promoted continuous levels of drug binding to BTK, according to the researchers. It is hoped that this approach will decrease drug resistance and will perhaps lower the rate of transformation into large-cell lymphoma.

Among patients who had cytopenia at entry into the study, platelet count improved in 62%, hemoglobin levels improved in 76%, and absolute neutrophil count improved in 80%. Among patients who had B symptoms (weight loss, night sweats, and fever) at study entry, those symptoms resolved in 88% by the third cycle of treatment and in 100% by the ninth cycle, Dr. Byrd and his associates said (N Engl J Med. 2016 Jan 28. doi: 10.1056/NEJMoa1509981). The most common adverse events were headache (43% of patients), diarrhea (39%), weight gain (26%), pyrexia (23%), and upper respiratory tract infection (23%). Fewer than 2% of patients developed severe diarrhea, rash, arthralgia, myalgia, bruising, or bleeding.

These findings offered strong justification to further investigate the efficacy and safety of acalabrutinib for relapsed CLL, and a phase III trial is now underway, the investigators added.

Acalabrutinib, an oral drug that is a more specific Bruton tyrosine kinase (BTK) inhibitor related to ibrutinib, produced a high response rate and durable remissions at a median 14 months of follow-up in an uncontrolled phase I/II trial of 61 adults with relapsed chronic lymphocytic leukemia, according to a report published online Jan. 28 in the New England Journal of Medicine.

The study patients had received a median of three previous therapies for CLL; 31% had chromosome 17p13.1 deletions, and 75% had unmutated immunoglobulin heavy-chain variable genes.

At the analysis, one patient had died from pneumonia at 13 months and CLL had progressed at 16 months in another patient. The overall response rate among the 60 evaluable patients was 95%, with a partial response in 85% and a partial response with lymphocytosis in 10%. The rate of stable disease was 5%. Adverse events were mostly mild and self-limiting; eight patients (13%) discontinued treatment, said Dr. John C. Byrd of the division of hematology, Ohio State University, Columbus, and his associates.

All 18 patients with chromosome 17p13.1 deletions responded to acalabrutinib, with a partial response in 89% and a partial response with lymphocytosis in 11%. One patient with a chromosome 17p13.1 deletion had disease progression, and this patient had a C481S (major clone) mutation in BTK and an L845F (minor clone) mutation in PLCγ2.

No cases of Richter’s transformation occurred.

Patients were treated at six sites in the United States and the United Kingdom. Four different doses of oral acalabrutinib were used in the first phase of the study; the drug’s low toxicity permitted a twice-daily 100-mg dose in phase II of the study. Twice-daily dosing promoted continuous levels of drug binding to BTK, according to the researchers. It is hoped that this approach will decrease drug resistance and will perhaps lower the rate of transformation into large-cell lymphoma.

Among patients who had cytopenia at entry into the study, platelet count improved in 62%, hemoglobin levels improved in 76%, and absolute neutrophil count improved in 80%. Among patients who had B symptoms (weight loss, night sweats, and fever) at study entry, those symptoms resolved in 88% by the third cycle of treatment and in 100% by the ninth cycle, Dr. Byrd and his associates said (N Engl J Med. 2016 Jan 28. doi: 10.1056/NEJMoa1509981). The most common adverse events were headache (43% of patients), diarrhea (39%), weight gain (26%), pyrexia (23%), and upper respiratory tract infection (23%). Fewer than 2% of patients developed severe diarrhea, rash, arthralgia, myalgia, bruising, or bleeding.

These findings offered strong justification to further investigate the efficacy and safety of acalabrutinib for relapsed CLL, and a phase III trial is now underway, the investigators added.