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Research and Reviews for the Practicing Oncologist
Other therapy options may relegate omacetaxine to last-line choice for chronic or accelerated phase CML
Many oncologists remember the storied history of homoharringtonine (HHT) and wonder whatever happened to it. HHT showed initial promise for myeloid leukemias, particularly for chronic myelogenous leukemia (CML) where it seemed to induce more cytogenetic remissions than did interferon alpha.1 Unfortunately for HHT investigators, but fortunately for everybody else, these studies coincided with those being done with imatinib. The phenomenal introduction of imatinib contributed to the shelving of HHT in the mid to late 1990s.2 As is often the case, though, imatinib is not perfect. Some patients with CML develop resistance and approximately half of these do so through the acquisition of binding site mutations. One mutation in particular, T315I, rendered patients with CML resistant to all available tyrosine kinase inhibitors (TKI). In the meantime, a semisynthetic version of HHT, omacetaxine mepesuccinate, was developed. With the help of partners in industry, investigators at MD Anderson Cancer Center initiated new studies of omacetaxine in TKI resistant CML patients. Among 62 CML patients with a T315I mutation, complete hematologic response was achieved in 77% with median response duration of 9.1 months.3 Further, cytogenetic response was also achieved in a portion of patients, complete in 16%. These data prompted application for approval by the Food and Drug Administration, but were rejected for lack of a standardized test for T315I mutations. The additional data presented in the Community Translations article on page 194 formed the basis of a second application, this time for an indication in patients with CML resistant to 2 or more TKIs.
Many oncologists remember the storied history of homoharringtonine (HHT) and wonder whatever happened to it. HHT showed initial promise for myeloid leukemias, particularly for chronic myelogenous leukemia (CML) where it seemed to induce more cytogenetic remissions than did interferon alpha.1 Unfortunately for HHT investigators, but fortunately for everybody else, these studies coincided with those being done with imatinib. The phenomenal introduction of imatinib contributed to the shelving of HHT in the mid to late 1990s.2 As is often the case, though, imatinib is not perfect. Some patients with CML develop resistance and approximately half of these do so through the acquisition of binding site mutations. One mutation in particular, T315I, rendered patients with CML resistant to all available tyrosine kinase inhibitors (TKI). In the meantime, a semisynthetic version of HHT, omacetaxine mepesuccinate, was developed. With the help of partners in industry, investigators at MD Anderson Cancer Center initiated new studies of omacetaxine in TKI resistant CML patients. Among 62 CML patients with a T315I mutation, complete hematologic response was achieved in 77% with median response duration of 9.1 months.3 Further, cytogenetic response was also achieved in a portion of patients, complete in 16%. These data prompted application for approval by the Food and Drug Administration, but were rejected for lack of a standardized test for T315I mutations. The additional data presented in the Community Translations article on page 194 formed the basis of a second application, this time for an indication in patients with CML resistant to 2 or more TKIs.
Many oncologists remember the storied history of homoharringtonine (HHT) and wonder whatever happened to it. HHT showed initial promise for myeloid leukemias, particularly for chronic myelogenous leukemia (CML) where it seemed to induce more cytogenetic remissions than did interferon alpha.1 Unfortunately for HHT investigators, but fortunately for everybody else, these studies coincided with those being done with imatinib. The phenomenal introduction of imatinib contributed to the shelving of HHT in the mid to late 1990s.2 As is often the case, though, imatinib is not perfect. Some patients with CML develop resistance and approximately half of these do so through the acquisition of binding site mutations. One mutation in particular, T315I, rendered patients with CML resistant to all available tyrosine kinase inhibitors (TKI). In the meantime, a semisynthetic version of HHT, omacetaxine mepesuccinate, was developed. With the help of partners in industry, investigators at MD Anderson Cancer Center initiated new studies of omacetaxine in TKI resistant CML patients. Among 62 CML patients with a T315I mutation, complete hematologic response was achieved in 77% with median response duration of 9.1 months.3 Further, cytogenetic response was also achieved in a portion of patients, complete in 16%. These data prompted application for approval by the Food and Drug Administration, but were rejected for lack of a standardized test for T315I mutations. The additional data presented in the Community Translations article on page 194 formed the basis of a second application, this time for an indication in patients with CML resistant to 2 or more TKIs.
From ASCO 2013, a line-up of possible practice changers
With this issue of COMMUNITY ONCOLOGY, memories of this year’s annual meeting of the American Society of Clinical Oncology in Chicago are starting to fade, but we are still trying to make sense of the wealth of data that was presented there. I found a number of the presentations particularly noteworthy and some of the findings likely to have an impact on how we practice. The aTTom trial1 by a group of British researchers was presented at the plenary session and dovetailed nicely with the ATLAS trial2 findings that were presented at last year’s San Antonio Breast Cancer Symposium. Both trials examined 5 and 10 years of adjuvant tamoxifen in women with early stage, hormone-positive breast cancer, and findings from both trials showed reductions in recurrence, breast cancer mortality, and overall mortality in women who remained on tamoxifen to year 10. Two presentations examined frequency of scanning in Hodgkin and non-Hodgkin lymphoma and both groups of researchers concluded what many of us have often suspected – that we overscan, and that clinical surveillance is an adequate strategy for detecting recurrence. One study showed that most diffuse large B-cell lymphoma relapses were found by detection of symptoms during a physical exam, lab abnormalities, or even the patients themselves, and that routine surveillance scans did not add much to the detection of relapse.3 Findings from a second study showed that routine surveillance did not result in any survival advantage in patients with classical Hodgkin lymphoma who had achieved complete remission.4
With this issue of COMMUNITY ONCOLOGY, memories of this year’s annual meeting of the American Society of Clinical Oncology in Chicago are starting to fade, but we are still trying to make sense of the wealth of data that was presented there. I found a number of the presentations particularly noteworthy and some of the findings likely to have an impact on how we practice. The aTTom trial1 by a group of British researchers was presented at the plenary session and dovetailed nicely with the ATLAS trial2 findings that were presented at last year’s San Antonio Breast Cancer Symposium. Both trials examined 5 and 10 years of adjuvant tamoxifen in women with early stage, hormone-positive breast cancer, and findings from both trials showed reductions in recurrence, breast cancer mortality, and overall mortality in women who remained on tamoxifen to year 10. Two presentations examined frequency of scanning in Hodgkin and non-Hodgkin lymphoma and both groups of researchers concluded what many of us have often suspected – that we overscan, and that clinical surveillance is an adequate strategy for detecting recurrence. One study showed that most diffuse large B-cell lymphoma relapses were found by detection of symptoms during a physical exam, lab abnormalities, or even the patients themselves, and that routine surveillance scans did not add much to the detection of relapse.3 Findings from a second study showed that routine surveillance did not result in any survival advantage in patients with classical Hodgkin lymphoma who had achieved complete remission.4
With this issue of COMMUNITY ONCOLOGY, memories of this year’s annual meeting of the American Society of Clinical Oncology in Chicago are starting to fade, but we are still trying to make sense of the wealth of data that was presented there. I found a number of the presentations particularly noteworthy and some of the findings likely to have an impact on how we practice. The aTTom trial1 by a group of British researchers was presented at the plenary session and dovetailed nicely with the ATLAS trial2 findings that were presented at last year’s San Antonio Breast Cancer Symposium. Both trials examined 5 and 10 years of adjuvant tamoxifen in women with early stage, hormone-positive breast cancer, and findings from both trials showed reductions in recurrence, breast cancer mortality, and overall mortality in women who remained on tamoxifen to year 10. Two presentations examined frequency of scanning in Hodgkin and non-Hodgkin lymphoma and both groups of researchers concluded what many of us have often suspected – that we overscan, and that clinical surveillance is an adequate strategy for detecting recurrence. One study showed that most diffuse large B-cell lymphoma relapses were found by detection of symptoms during a physical exam, lab abnormalities, or even the patients themselves, and that routine surveillance scans did not add much to the detection of relapse.3 Findings from a second study showed that routine surveillance did not result in any survival advantage in patients with classical Hodgkin lymphoma who had achieved complete remission.4
Enzalutamide in castrate-resistant prostate cancer after chemotherapy
Enzalutamide is an androgen receptor-signaling inhibitor that is reported to differ from conventional antiandrogen agents in that it inhibits androgen receptor nuclear translocation, DNA binding, and coactivator recruitment; exhibits increased affinity for the androgen receptor; and induces tumor reduction, rather than slowing growth, in preclinical models. The recently reported AFFIRM study showed that enzalutamide treatment after chemotherapy significantly prolonged overall survival (OS), radiographic progression-free survival (PFS), time to prostate-specific antigen (PSA) progression, and time to skeletal-related events (SREs) in men with castration-resistant prostate cancer. This trial formed the basis for the recent approval of enzalutamide for the treatment of patients with metastatic castrationresistant prostate cancer who have previously received docetaxel.
*Click on the links to the left for PDFs of the full article and related Commentary.
Enzalutamide is an androgen receptor-signaling inhibitor that is reported to differ from conventional antiandrogen agents in that it inhibits androgen receptor nuclear translocation, DNA binding, and coactivator recruitment; exhibits increased affinity for the androgen receptor; and induces tumor reduction, rather than slowing growth, in preclinical models. The recently reported AFFIRM study showed that enzalutamide treatment after chemotherapy significantly prolonged overall survival (OS), radiographic progression-free survival (PFS), time to prostate-specific antigen (PSA) progression, and time to skeletal-related events (SREs) in men with castration-resistant prostate cancer. This trial formed the basis for the recent approval of enzalutamide for the treatment of patients with metastatic castrationresistant prostate cancer who have previously received docetaxel.
*Click on the links to the left for PDFs of the full article and related Commentary.
Enzalutamide is an androgen receptor-signaling inhibitor that is reported to differ from conventional antiandrogen agents in that it inhibits androgen receptor nuclear translocation, DNA binding, and coactivator recruitment; exhibits increased affinity for the androgen receptor; and induces tumor reduction, rather than slowing growth, in preclinical models. The recently reported AFFIRM study showed that enzalutamide treatment after chemotherapy significantly prolonged overall survival (OS), radiographic progression-free survival (PFS), time to prostate-specific antigen (PSA) progression, and time to skeletal-related events (SREs) in men with castration-resistant prostate cancer. This trial formed the basis for the recent approval of enzalutamide for the treatment of patients with metastatic castrationresistant prostate cancer who have previously received docetaxel.
*Click on the links to the left for PDFs of the full article and related Commentary.
Practical considerations in the delivery of genetic counseling and testing services for inherited cancer predisposition
Many professional entities endorse the need to deliver cancer genetics risk assessment (CGRA) services through a multidisciplinary team that includes trained genetics professionals. However, market forces, a lack of regulation of genetic testing, patent laws, cost barriers, and a limited workforce in genetics have resulted in an increasing number of community practitioners who order and interpret genetic testing. In addition, varying state-level laws and licensure requirements for genetic counselors may contribute to the nonuniform delivery of CGRA services across the United States. Those who perform genetic testing without having adequate training or expertise may incur liability risks. Moreover, the patient might not enjoy the maximum benefit of testing at the hands of an inadequately trained individual. In the setting of a limited number of professional who are trained in CGRA and a dearth of education and training resources, it is a challenge to integrate genetic testing services into clinical care. With advances in genomics and the implementation of personalized medicine, the problem will only be magnified, and it is critical that there are more opportunities for high quality education and training in clinical cancer genetics free of commercial bias. Successful strategies for delivering comprehensive CGRA services include academic-community partnerships that focus on collaboration with nongenetics providers or the inclusion of a genetics professional in the community setting as part of multidisciplinary patient care. These approaches can leverage the expertise of genetics professionals while allowing patients to remain in their community and enjoy better access to resources for long-term follow-up care.
*Click on the link to the left for a PDF of the full article.
Many professional entities endorse the need to deliver cancer genetics risk assessment (CGRA) services through a multidisciplinary team that includes trained genetics professionals. However, market forces, a lack of regulation of genetic testing, patent laws, cost barriers, and a limited workforce in genetics have resulted in an increasing number of community practitioners who order and interpret genetic testing. In addition, varying state-level laws and licensure requirements for genetic counselors may contribute to the nonuniform delivery of CGRA services across the United States. Those who perform genetic testing without having adequate training or expertise may incur liability risks. Moreover, the patient might not enjoy the maximum benefit of testing at the hands of an inadequately trained individual. In the setting of a limited number of professional who are trained in CGRA and a dearth of education and training resources, it is a challenge to integrate genetic testing services into clinical care. With advances in genomics and the implementation of personalized medicine, the problem will only be magnified, and it is critical that there are more opportunities for high quality education and training in clinical cancer genetics free of commercial bias. Successful strategies for delivering comprehensive CGRA services include academic-community partnerships that focus on collaboration with nongenetics providers or the inclusion of a genetics professional in the community setting as part of multidisciplinary patient care. These approaches can leverage the expertise of genetics professionals while allowing patients to remain in their community and enjoy better access to resources for long-term follow-up care.
*Click on the link to the left for a PDF of the full article.
Many professional entities endorse the need to deliver cancer genetics risk assessment (CGRA) services through a multidisciplinary team that includes trained genetics professionals. However, market forces, a lack of regulation of genetic testing, patent laws, cost barriers, and a limited workforce in genetics have resulted in an increasing number of community practitioners who order and interpret genetic testing. In addition, varying state-level laws and licensure requirements for genetic counselors may contribute to the nonuniform delivery of CGRA services across the United States. Those who perform genetic testing without having adequate training or expertise may incur liability risks. Moreover, the patient might not enjoy the maximum benefit of testing at the hands of an inadequately trained individual. In the setting of a limited number of professional who are trained in CGRA and a dearth of education and training resources, it is a challenge to integrate genetic testing services into clinical care. With advances in genomics and the implementation of personalized medicine, the problem will only be magnified, and it is critical that there are more opportunities for high quality education and training in clinical cancer genetics free of commercial bias. Successful strategies for delivering comprehensive CGRA services include academic-community partnerships that focus on collaboration with nongenetics providers or the inclusion of a genetics professional in the community setting as part of multidisciplinary patient care. These approaches can leverage the expertise of genetics professionals while allowing patients to remain in their community and enjoy better access to resources for long-term follow-up care.
*Click on the link to the left for a PDF of the full article.
Ensuring optimal adherence to BCR-ABL1 tyrosine kinase inhibitor therapy for chronic myeloid leukemia
The advent of BCR-ABL1 tyrosine kinase inhibitors (TKIs) for the treatment of chronic myeloid leukemia (CML) has dramatically changed the management of patients with CML. With continuous long-term TKI therapy, CML can be managed like a chronic condition, and most patients can expect to have a normal life expectancy. Given the prospect of lifelong therapy, however, issues related to adherence become particularly important and warrant greater attention since attainment of favorable long-term survival depends in large part on consistent, appropriate treatment administration over years, if not decades. As the multidisciplinary care team approach to cancer care has gained traction at academic centers and community practices, midlevel providers, including nurse practitioners and physician assistants, have taken on greater patient-related responsibilities. Midlevel providers have the potential to foster and maintain meaningful provider-patient relationships that may span years, and are well positioned to recognize and manage problems that patients may have with adherence. Here we discuss the importance of achieving and maintaining responses to TKI therapy, describe the clinical consequences of poor adherence to TKI therapy in CML, and outline factors behind poor adherence. We also share strategies that we use at our center to improve adherence to long-term TKI therapy for CML.
*Click on the link to the left for a PDF of the full article.
The advent of BCR-ABL1 tyrosine kinase inhibitors (TKIs) for the treatment of chronic myeloid leukemia (CML) has dramatically changed the management of patients with CML. With continuous long-term TKI therapy, CML can be managed like a chronic condition, and most patients can expect to have a normal life expectancy. Given the prospect of lifelong therapy, however, issues related to adherence become particularly important and warrant greater attention since attainment of favorable long-term survival depends in large part on consistent, appropriate treatment administration over years, if not decades. As the multidisciplinary care team approach to cancer care has gained traction at academic centers and community practices, midlevel providers, including nurse practitioners and physician assistants, have taken on greater patient-related responsibilities. Midlevel providers have the potential to foster and maintain meaningful provider-patient relationships that may span years, and are well positioned to recognize and manage problems that patients may have with adherence. Here we discuss the importance of achieving and maintaining responses to TKI therapy, describe the clinical consequences of poor adherence to TKI therapy in CML, and outline factors behind poor adherence. We also share strategies that we use at our center to improve adherence to long-term TKI therapy for CML.
*Click on the link to the left for a PDF of the full article.
The advent of BCR-ABL1 tyrosine kinase inhibitors (TKIs) for the treatment of chronic myeloid leukemia (CML) has dramatically changed the management of patients with CML. With continuous long-term TKI therapy, CML can be managed like a chronic condition, and most patients can expect to have a normal life expectancy. Given the prospect of lifelong therapy, however, issues related to adherence become particularly important and warrant greater attention since attainment of favorable long-term survival depends in large part on consistent, appropriate treatment administration over years, if not decades. As the multidisciplinary care team approach to cancer care has gained traction at academic centers and community practices, midlevel providers, including nurse practitioners and physician assistants, have taken on greater patient-related responsibilities. Midlevel providers have the potential to foster and maintain meaningful provider-patient relationships that may span years, and are well positioned to recognize and manage problems that patients may have with adherence. Here we discuss the importance of achieving and maintaining responses to TKI therapy, describe the clinical consequences of poor adherence to TKI therapy in CML, and outline factors behind poor adherence. We also share strategies that we use at our center to improve adherence to long-term TKI therapy for CML.
*Click on the link to the left for a PDF of the full article.
Cancer health disparities and risk factors: lessons from a woman with a 20-cm chest wall mass, growing for 2 years
The National Cancer Institute (NCI) has defined cancer health disparities as adverse differences in incidence, prevalence, mortality, survivorship, and burden of cancer or related health conditions that exist among specific populations in the United States.1 African Americans are more likely than members of any other racial or ethnic population to develop and die from cancer.2 African American women are more likely than are white women to die of breast cancer, although African American women have a lower incidence rate of this disease than white women.3,4 The most conspicuous factors that contribute to the observed disparities are associated with a lack of health care coverage, low socioeconomic status, and race/ethnicity. We recently provided care to a woman who presented to the emergency room with 20-cm chest wall mass. She was found to have inoperable stage IV triple-negative breast cancer with significantly poor prognosis. We describe her presentation, diagnosis, and treatment, identify the factors that contributed to her current condition, discuss the cancer health disparities and the associated risk factors, and reiterate what physicians should know to prevent similar unfortunate and unnecessary scenarios.
*Click on the link to the left for a PDF of the full article.
The National Cancer Institute (NCI) has defined cancer health disparities as adverse differences in incidence, prevalence, mortality, survivorship, and burden of cancer or related health conditions that exist among specific populations in the United States.1 African Americans are more likely than members of any other racial or ethnic population to develop and die from cancer.2 African American women are more likely than are white women to die of breast cancer, although African American women have a lower incidence rate of this disease than white women.3,4 The most conspicuous factors that contribute to the observed disparities are associated with a lack of health care coverage, low socioeconomic status, and race/ethnicity. We recently provided care to a woman who presented to the emergency room with 20-cm chest wall mass. She was found to have inoperable stage IV triple-negative breast cancer with significantly poor prognosis. We describe her presentation, diagnosis, and treatment, identify the factors that contributed to her current condition, discuss the cancer health disparities and the associated risk factors, and reiterate what physicians should know to prevent similar unfortunate and unnecessary scenarios.
*Click on the link to the left for a PDF of the full article.
The National Cancer Institute (NCI) has defined cancer health disparities as adverse differences in incidence, prevalence, mortality, survivorship, and burden of cancer or related health conditions that exist among specific populations in the United States.1 African Americans are more likely than members of any other racial or ethnic population to develop and die from cancer.2 African American women are more likely than are white women to die of breast cancer, although African American women have a lower incidence rate of this disease than white women.3,4 The most conspicuous factors that contribute to the observed disparities are associated with a lack of health care coverage, low socioeconomic status, and race/ethnicity. We recently provided care to a woman who presented to the emergency room with 20-cm chest wall mass. She was found to have inoperable stage IV triple-negative breast cancer with significantly poor prognosis. We describe her presentation, diagnosis, and treatment, identify the factors that contributed to her current condition, discuss the cancer health disparities and the associated risk factors, and reiterate what physicians should know to prevent similar unfortunate and unnecessary scenarios.
*Click on the link to the left for a PDF of the full article.
Nab-paclitaxel is a valuable NSCLC therapy option
The FDA recently widened the approved use of nanoparticle albumin bound (nab) paclitaxel (nab-paclitaxel) to include first-line treatment for non–small-cell lung cancer (NSCLC), in combination with carboplatin. This approval was based on results of a global, phase 3 randomized trial conducted by Socinski et al that compared the use of nab-paclitaxel and solventbased paclitaxel injection in combination with carboplatin as first-line treatment of advanced NSCLC.1 Taxanes are the most widely used chemotherapeutic agents in solid tumor oncology. Paclitaxel and docetaxel are effective in the treatment of NSCLC and are frequently used for adjuvant therapy after resection, in combination with radiation for locally advanced disease and for treatment of patients with advanced disease. They are usually used in combination with platinum agents or as single-agent therapy in the relapsed refractory setting. Paclitaxel and docetaxel require synthetic solvents for intravenous administration, which can cause life-threatening allergic reactions and significant toxicity. Nab-paclitaxel is a novel, solvent-free formulation of paclitaxel, which can be administered without the need for steroid and antihistamine premedication. Furthermore, nab-paclitaxel delivers high concentrations of the drug’s active ingredient into the cancer cell with a reduced incidence of side effects compared with the solvent-based formulation. As summarized in the Community Translations article on page 166, the administration of nab-paclitaxel as firstline therapy in combination with carboplatin was efficacious and resulted in a significantly improved overall response rate (ORR), compared with paclitaxel (33% vs 25%, respectively; response rate ratio [RRR], 1.313; 95% CI, 1.082-1.593; P .005), and it achieved the study’s primary end point. Of note, ORR was significantly greater with nab-paclitaxel in patients with squamous cell histology (41% vs 24%; RRR, 1.680; P .001), with no difference between treatments being observed in patients with nonsquamous histology (ORR, 26% vs 25%) or adenocarcinoma (ORR, 26% vs 27%). There was no difference in PFS or survival between the 2 arms.
The FDA recently widened the approved use of nanoparticle albumin bound (nab) paclitaxel (nab-paclitaxel) to include first-line treatment for non–small-cell lung cancer (NSCLC), in combination with carboplatin. This approval was based on results of a global, phase 3 randomized trial conducted by Socinski et al that compared the use of nab-paclitaxel and solventbased paclitaxel injection in combination with carboplatin as first-line treatment of advanced NSCLC.1 Taxanes are the most widely used chemotherapeutic agents in solid tumor oncology. Paclitaxel and docetaxel are effective in the treatment of NSCLC and are frequently used for adjuvant therapy after resection, in combination with radiation for locally advanced disease and for treatment of patients with advanced disease. They are usually used in combination with platinum agents or as single-agent therapy in the relapsed refractory setting. Paclitaxel and docetaxel require synthetic solvents for intravenous administration, which can cause life-threatening allergic reactions and significant toxicity. Nab-paclitaxel is a novel, solvent-free formulation of paclitaxel, which can be administered without the need for steroid and antihistamine premedication. Furthermore, nab-paclitaxel delivers high concentrations of the drug’s active ingredient into the cancer cell with a reduced incidence of side effects compared with the solvent-based formulation. As summarized in the Community Translations article on page 166, the administration of nab-paclitaxel as firstline therapy in combination with carboplatin was efficacious and resulted in a significantly improved overall response rate (ORR), compared with paclitaxel (33% vs 25%, respectively; response rate ratio [RRR], 1.313; 95% CI, 1.082-1.593; P .005), and it achieved the study’s primary end point. Of note, ORR was significantly greater with nab-paclitaxel in patients with squamous cell histology (41% vs 24%; RRR, 1.680; P .001), with no difference between treatments being observed in patients with nonsquamous histology (ORR, 26% vs 25%) or adenocarcinoma (ORR, 26% vs 27%). There was no difference in PFS or survival between the 2 arms.
The FDA recently widened the approved use of nanoparticle albumin bound (nab) paclitaxel (nab-paclitaxel) to include first-line treatment for non–small-cell lung cancer (NSCLC), in combination with carboplatin. This approval was based on results of a global, phase 3 randomized trial conducted by Socinski et al that compared the use of nab-paclitaxel and solventbased paclitaxel injection in combination with carboplatin as first-line treatment of advanced NSCLC.1 Taxanes are the most widely used chemotherapeutic agents in solid tumor oncology. Paclitaxel and docetaxel are effective in the treatment of NSCLC and are frequently used for adjuvant therapy after resection, in combination with radiation for locally advanced disease and for treatment of patients with advanced disease. They are usually used in combination with platinum agents or as single-agent therapy in the relapsed refractory setting. Paclitaxel and docetaxel require synthetic solvents for intravenous administration, which can cause life-threatening allergic reactions and significant toxicity. Nab-paclitaxel is a novel, solvent-free formulation of paclitaxel, which can be administered without the need for steroid and antihistamine premedication. Furthermore, nab-paclitaxel delivers high concentrations of the drug’s active ingredient into the cancer cell with a reduced incidence of side effects compared with the solvent-based formulation. As summarized in the Community Translations article on page 166, the administration of nab-paclitaxel as firstline therapy in combination with carboplatin was efficacious and resulted in a significantly improved overall response rate (ORR), compared with paclitaxel (33% vs 25%, respectively; response rate ratio [RRR], 1.313; 95% CI, 1.082-1.593; P .005), and it achieved the study’s primary end point. Of note, ORR was significantly greater with nab-paclitaxel in patients with squamous cell histology (41% vs 24%; RRR, 1.680; P .001), with no difference between treatments being observed in patients with nonsquamous histology (ORR, 26% vs 25%) or adenocarcinoma (ORR, 26% vs 27%). There was no difference in PFS or survival between the 2 arms.
A severe case of cutaneous squamous cell carcinoma keratoacanthoma type in a 55-year-old man
Cutaneous squamous cell carcinoma (SCC) is the second most common nonmelanoma skin cancer. The clinical features of SCC typically include scaly, crusted, nonhealing, ulcerative lesions in sun-exposed areas of the body. We present here the interesting case of a patient who was diagnosed with extremely severe SCC, keratoacanthoma-type (KA; SCC-KA type) with multiple annular, crusted, papular lesions (8-20 mm) on the dorsal aspect of his hands and forearms. The patient was successfully treated with cetuximab over 78 days, with complete resolution.
*Click on the link to the left for a PDF of the full article.
Cutaneous squamous cell carcinoma (SCC) is the second most common nonmelanoma skin cancer. The clinical features of SCC typically include scaly, crusted, nonhealing, ulcerative lesions in sun-exposed areas of the body. We present here the interesting case of a patient who was diagnosed with extremely severe SCC, keratoacanthoma-type (KA; SCC-KA type) with multiple annular, crusted, papular lesions (8-20 mm) on the dorsal aspect of his hands and forearms. The patient was successfully treated with cetuximab over 78 days, with complete resolution.
*Click on the link to the left for a PDF of the full article.
Cutaneous squamous cell carcinoma (SCC) is the second most common nonmelanoma skin cancer. The clinical features of SCC typically include scaly, crusted, nonhealing, ulcerative lesions in sun-exposed areas of the body. We present here the interesting case of a patient who was diagnosed with extremely severe SCC, keratoacanthoma-type (KA; SCC-KA type) with multiple annular, crusted, papular lesions (8-20 mm) on the dorsal aspect of his hands and forearms. The patient was successfully treated with cetuximab over 78 days, with complete resolution.
*Click on the link to the left for a PDF of the full article.
Benign metastasizing leiomyoma: ‘a sheep in wolf’s clothing’
Benign metastasizing leiomyoma (BML) is a rare entity,1-9 of which a small number of cases, about 751,4,6 to 120,8-10 have been described in the literature since the condition was first described in 1939. It usually affects women of reproductive age with a history of uterine leiomyomatosis who have undergone a hysterectomy.3,6 The lung is the most common site of involvement.1-4,7-9 The pathologic features of this entity are described as having originated from the metastasis of the histologically benign uterine leiomyoma and are an uncommon lesion characterized by the presence of multiple smooth-muscle nodules that are often located in the lung, lymph nodes, or abdomen.2 Although these lesions are slow growing and asymptomatic and are usually incidentally diagnosed, they may rarely cause debilitating symptoms.1,6 Optimal treatment is controversial, but careful follow-up of these patients is recommended because the lesions show a low-grade clinical malignant behavior although their appearance is benign.4 We describe here a rare case of pulmonary BML ...
*Click on the link to the left for a PDF of the full article.
Benign metastasizing leiomyoma (BML) is a rare entity,1-9 of which a small number of cases, about 751,4,6 to 120,8-10 have been described in the literature since the condition was first described in 1939. It usually affects women of reproductive age with a history of uterine leiomyomatosis who have undergone a hysterectomy.3,6 The lung is the most common site of involvement.1-4,7-9 The pathologic features of this entity are described as having originated from the metastasis of the histologically benign uterine leiomyoma and are an uncommon lesion characterized by the presence of multiple smooth-muscle nodules that are often located in the lung, lymph nodes, or abdomen.2 Although these lesions are slow growing and asymptomatic and are usually incidentally diagnosed, they may rarely cause debilitating symptoms.1,6 Optimal treatment is controversial, but careful follow-up of these patients is recommended because the lesions show a low-grade clinical malignant behavior although their appearance is benign.4 We describe here a rare case of pulmonary BML ...
*Click on the link to the left for a PDF of the full article.
Benign metastasizing leiomyoma (BML) is a rare entity,1-9 of which a small number of cases, about 751,4,6 to 120,8-10 have been described in the literature since the condition was first described in 1939. It usually affects women of reproductive age with a history of uterine leiomyomatosis who have undergone a hysterectomy.3,6 The lung is the most common site of involvement.1-4,7-9 The pathologic features of this entity are described as having originated from the metastasis of the histologically benign uterine leiomyoma and are an uncommon lesion characterized by the presence of multiple smooth-muscle nodules that are often located in the lung, lymph nodes, or abdomen.2 Although these lesions are slow growing and asymptomatic and are usually incidentally diagnosed, they may rarely cause debilitating symptoms.1,6 Optimal treatment is controversial, but careful follow-up of these patients is recommended because the lesions show a low-grade clinical malignant behavior although their appearance is benign.4 We describe here a rare case of pulmonary BML ...
*Click on the link to the left for a PDF of the full article.
Bosutinib in previously treated CML and in first-line comparison with imatinib
Bosutinib was recently approved for the treatment of chronic phase (CP), accelerated phase (AP), or blast phase (BP) Philadelphia chromosomepositive (Ph+) chronic myeloid leukemia (CML) in adult patients with resistance or intolerance to prior therapy. The approval was based on findings in a combined phase 1/2 single-arm trial.1 The recently reported phase 3 BELA trial compared bosutinib and imatinib as first-line treatments in patients with CP CML and reported no difference in complete cytogenetic response (CCyR) rates at 1 year, but improved major molecular response (MMR) rate and time to response, as well as a distinct safety profile.2
*Click on the links to the left for PDFs of the full article and related Commentary.
Bosutinib was recently approved for the treatment of chronic phase (CP), accelerated phase (AP), or blast phase (BP) Philadelphia chromosomepositive (Ph+) chronic myeloid leukemia (CML) in adult patients with resistance or intolerance to prior therapy. The approval was based on findings in a combined phase 1/2 single-arm trial.1 The recently reported phase 3 BELA trial compared bosutinib and imatinib as first-line treatments in patients with CP CML and reported no difference in complete cytogenetic response (CCyR) rates at 1 year, but improved major molecular response (MMR) rate and time to response, as well as a distinct safety profile.2
*Click on the links to the left for PDFs of the full article and related Commentary.
Bosutinib was recently approved for the treatment of chronic phase (CP), accelerated phase (AP), or blast phase (BP) Philadelphia chromosomepositive (Ph+) chronic myeloid leukemia (CML) in adult patients with resistance or intolerance to prior therapy. The approval was based on findings in a combined phase 1/2 single-arm trial.1 The recently reported phase 3 BELA trial compared bosutinib and imatinib as first-line treatments in patients with CP CML and reported no difference in complete cytogenetic response (CCyR) rates at 1 year, but improved major molecular response (MMR) rate and time to response, as well as a distinct safety profile.2
*Click on the links to the left for PDFs of the full article and related Commentary.