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Palliative Care and Oncology Advanced Lung Cancer Collaborative
Purpose: The purpose of this collaborative between the oncology service, palliative care service, and social work is to improve the quality of life (QOL) for patients with advanced lung cancer by improving the timeliness of palliative care involvement and minimizing visits to urgent care or the emergency department during the course of treatment. Early palliative care involvement in the care of patients with advanced cancer has been shown to allow for a longer opportunity to improve QOL and symptom control for these patients, as well as assist in identifying patients’ goals for their care.
Methods: The current practices of palliative care consultation for these patients were identified. It was found that palliative care was consulted for patients who are not candidates for palliative chemotherapy after their initial visit with oncology. This is followed by a hospice referral. On the other hand, patients who were found to be candidates for palliative chemotherapy are typically followed by oncology until their treatment has discontinued due to disease progression, severe toxicities, or poor performance status. The patients are then referred to palliative care and subsequently, hospice care. It was proposed that this practice be changed to a referral to palliative care after the patients with advanced lung cancer are seen for their initial visit in oncology, whether or not they are found qualified for palliative chemotherapy. The palliative care consult will take place within 3 weeks after the referral is received. For patients who are qualified to receive palliative chemotherapy, palliative care will follow the patient simultaneously along with oncology during the course of treatment as indicated by the patient or family’s need. This will continue until the patient is no longer a candidate for palliative chemotherapy and a referral for hospice care is made.
Results: Baseline data were obtained and compared to outcomes after the implementation of the collaborative that showed time from diagnosis to palliative care referral (from 80 to 30 days), time from initial out-patient oncology visit to initial palliative care appointment (from 78 to 15 days), time from palliative care consultation to hospice (from 13 to 98 days), time from hospice referral to death (from 40 to 23 days), and time from palliative care consultation to death (from 54 to 123 days). Patients who were not followed by palliative care had an average urgent care visit of 1.8 from the time of diagnosis to referral to hospice, whereas those who were followed by palliative care had an average of 0.9. Among the factors that were identified to contribute to the timeliness of palliative care involvement in the care of these patients were the lack of a formal process for referral, the absence of a dedicated oncology social worker, and patient misconception that palliative care is equivalent to hospice care. Only about 30 % of patients who were not followed by social work were referred to palliative care, whereas about 70 % of patients who were followed by social work received palliative care referrals.
Conclusions: The collaborative resulted in improved timeliness of palliative care involvement for patients with advanced lung cancer, as well as less urgent care visits. The patients were able to avail from the benefits of palliative care longer, before they are enrolled in hospice care. The time from hospice referral to death seems to be shorter. This may be due to different factors, including the fact that patients are able to benefit from palliative care longer before they enroll in hospice, resulting in an increase in the duration of palliative care involvement and a decrease in the duration of hospice involvement.
Purpose: The purpose of this collaborative between the oncology service, palliative care service, and social work is to improve the quality of life (QOL) for patients with advanced lung cancer by improving the timeliness of palliative care involvement and minimizing visits to urgent care or the emergency department during the course of treatment. Early palliative care involvement in the care of patients with advanced cancer has been shown to allow for a longer opportunity to improve QOL and symptom control for these patients, as well as assist in identifying patients’ goals for their care.
Methods: The current practices of palliative care consultation for these patients were identified. It was found that palliative care was consulted for patients who are not candidates for palliative chemotherapy after their initial visit with oncology. This is followed by a hospice referral. On the other hand, patients who were found to be candidates for palliative chemotherapy are typically followed by oncology until their treatment has discontinued due to disease progression, severe toxicities, or poor performance status. The patients are then referred to palliative care and subsequently, hospice care. It was proposed that this practice be changed to a referral to palliative care after the patients with advanced lung cancer are seen for their initial visit in oncology, whether or not they are found qualified for palliative chemotherapy. The palliative care consult will take place within 3 weeks after the referral is received. For patients who are qualified to receive palliative chemotherapy, palliative care will follow the patient simultaneously along with oncology during the course of treatment as indicated by the patient or family’s need. This will continue until the patient is no longer a candidate for palliative chemotherapy and a referral for hospice care is made.
Results: Baseline data were obtained and compared to outcomes after the implementation of the collaborative that showed time from diagnosis to palliative care referral (from 80 to 30 days), time from initial out-patient oncology visit to initial palliative care appointment (from 78 to 15 days), time from palliative care consultation to hospice (from 13 to 98 days), time from hospice referral to death (from 40 to 23 days), and time from palliative care consultation to death (from 54 to 123 days). Patients who were not followed by palliative care had an average urgent care visit of 1.8 from the time of diagnosis to referral to hospice, whereas those who were followed by palliative care had an average of 0.9. Among the factors that were identified to contribute to the timeliness of palliative care involvement in the care of these patients were the lack of a formal process for referral, the absence of a dedicated oncology social worker, and patient misconception that palliative care is equivalent to hospice care. Only about 30 % of patients who were not followed by social work were referred to palliative care, whereas about 70 % of patients who were followed by social work received palliative care referrals.
Conclusions: The collaborative resulted in improved timeliness of palliative care involvement for patients with advanced lung cancer, as well as less urgent care visits. The patients were able to avail from the benefits of palliative care longer, before they are enrolled in hospice care. The time from hospice referral to death seems to be shorter. This may be due to different factors, including the fact that patients are able to benefit from palliative care longer before they enroll in hospice, resulting in an increase in the duration of palliative care involvement and a decrease in the duration of hospice involvement.
Purpose: The purpose of this collaborative between the oncology service, palliative care service, and social work is to improve the quality of life (QOL) for patients with advanced lung cancer by improving the timeliness of palliative care involvement and minimizing visits to urgent care or the emergency department during the course of treatment. Early palliative care involvement in the care of patients with advanced cancer has been shown to allow for a longer opportunity to improve QOL and symptom control for these patients, as well as assist in identifying patients’ goals for their care.
Methods: The current practices of palliative care consultation for these patients were identified. It was found that palliative care was consulted for patients who are not candidates for palliative chemotherapy after their initial visit with oncology. This is followed by a hospice referral. On the other hand, patients who were found to be candidates for palliative chemotherapy are typically followed by oncology until their treatment has discontinued due to disease progression, severe toxicities, or poor performance status. The patients are then referred to palliative care and subsequently, hospice care. It was proposed that this practice be changed to a referral to palliative care after the patients with advanced lung cancer are seen for their initial visit in oncology, whether or not they are found qualified for palliative chemotherapy. The palliative care consult will take place within 3 weeks after the referral is received. For patients who are qualified to receive palliative chemotherapy, palliative care will follow the patient simultaneously along with oncology during the course of treatment as indicated by the patient or family’s need. This will continue until the patient is no longer a candidate for palliative chemotherapy and a referral for hospice care is made.
Results: Baseline data were obtained and compared to outcomes after the implementation of the collaborative that showed time from diagnosis to palliative care referral (from 80 to 30 days), time from initial out-patient oncology visit to initial palliative care appointment (from 78 to 15 days), time from palliative care consultation to hospice (from 13 to 98 days), time from hospice referral to death (from 40 to 23 days), and time from palliative care consultation to death (from 54 to 123 days). Patients who were not followed by palliative care had an average urgent care visit of 1.8 from the time of diagnosis to referral to hospice, whereas those who were followed by palliative care had an average of 0.9. Among the factors that were identified to contribute to the timeliness of palliative care involvement in the care of these patients were the lack of a formal process for referral, the absence of a dedicated oncology social worker, and patient misconception that palliative care is equivalent to hospice care. Only about 30 % of patients who were not followed by social work were referred to palliative care, whereas about 70 % of patients who were followed by social work received palliative care referrals.
Conclusions: The collaborative resulted in improved timeliness of palliative care involvement for patients with advanced lung cancer, as well as less urgent care visits. The patients were able to avail from the benefits of palliative care longer, before they are enrolled in hospice care. The time from hospice referral to death seems to be shorter. This may be due to different factors, including the fact that patients are able to benefit from palliative care longer before they enroll in hospice, resulting in an increase in the duration of palliative care involvement and a decrease in the duration of hospice involvement.
Creation of a Quality Improvement Tool to Track Timeliness and Quality of Breast Cancer Care
Purpose: Development of a quality improvement (QI) tracking tool that allows staff to monitor care on an ongoing basis and make changes and modify system processes to improve outcomes for breast cancer care. The National Quality Forum (NQF) of the Commission on Cancer and National Consortium of Breast Centers Program (NQMBC) have collaborated and defined breast cancer quality measures. Timeliness and quality of breast cancer care will have a direct impact on quality of life and survivorship. The West Palm Beach VAMC did not have a process in place for data collection and ongoing performance improvement for breast cancer care.
Methods: The major aims of the project are to (1)Identify collaborative team members; (2) identify standardized benchmarks that track timeliness and quality of care; and (3) create a tracking tool to enter data that automatically measures timeliness and quality of care. A collaborative group of staff from the cancer registry, women’s health department, radiology, oncology, pathology, and applied systems engineers met biweekly/monthly over 9 months to add, define, and continuously retest data entry sets within the tool. Several timeliness measures have been identified by the NQMBC. The final measures for our facility were chosen by a multidisciplinary breast cancer committee and approved by the cancer committee. Timeliness measures included (1) time between diagnostic mammogram and open surgical biopsy/excision; (2) time between diagnostic mammogram and needle/core biopsy; (3) time between needle biopsy and initial breast cancer surgery; (4) time between initial breast biopsy (core/needle or incisional/excisional) and pathology results; (5) time between open (incisional/excisional) and pathology results; and (6) time between initial breast cancer surgery and pathology results. Quality measures from the NQF include (1) radiation therapy administration within 1 year of diagnosis; (2) combination chemotherapy considered or administered within 4 months (120 days) of diagnosis; and (3) tamoxifen or third-generation aromatase inhibitor (AI) considered or administered within 4 months (120 days) of diagnosis.
Results: Outcomes for baseline data for n = 30 patients demonstrated (1) time between diagnostic mammogram and open surgical biopsy/excision—52 days; (2) time between diagnostic mammogram and needle/core biopsy—50 days; (3) time between needle biopsy and initial breast cancer surgery—32 days; (4) time between initial breast biopsy (core/needle or incisional/excisional); and (5) pathology results—8 days. Quality measures from the NQF include (1) radiation therapy administration within 1 year of diagnosis—92%; (2) combination chemotherapy considered or administered within 4 months (120 days) of diagnosis—72%; and (3) tamoxifen or third-generation AI is considered or administered within 4 months (120 days) of diagnosis—72%.
Conclusions: Verification of tool data indicated the need for additional columns and definitions to accurately report timeliness measures. Patient refusal of care was included in data, although it skewed the data. Refusal of care will be individually analyzed to make sure patients were educated regarding disease process and scope of treatment options, which indicate informed consent. Facility goals for timeliness range from 2 to 30 days. Quality measure goal is 100%. As a continual evaluation process occurs, monitoring and adjustment of processes will advance our facility closer to meeting its goal of providing comprehensive quality breast care to our women veterans.
Purpose: Development of a quality improvement (QI) tracking tool that allows staff to monitor care on an ongoing basis and make changes and modify system processes to improve outcomes for breast cancer care. The National Quality Forum (NQF) of the Commission on Cancer and National Consortium of Breast Centers Program (NQMBC) have collaborated and defined breast cancer quality measures. Timeliness and quality of breast cancer care will have a direct impact on quality of life and survivorship. The West Palm Beach VAMC did not have a process in place for data collection and ongoing performance improvement for breast cancer care.
Methods: The major aims of the project are to (1)Identify collaborative team members; (2) identify standardized benchmarks that track timeliness and quality of care; and (3) create a tracking tool to enter data that automatically measures timeliness and quality of care. A collaborative group of staff from the cancer registry, women’s health department, radiology, oncology, pathology, and applied systems engineers met biweekly/monthly over 9 months to add, define, and continuously retest data entry sets within the tool. Several timeliness measures have been identified by the NQMBC. The final measures for our facility were chosen by a multidisciplinary breast cancer committee and approved by the cancer committee. Timeliness measures included (1) time between diagnostic mammogram and open surgical biopsy/excision; (2) time between diagnostic mammogram and needle/core biopsy; (3) time between needle biopsy and initial breast cancer surgery; (4) time between initial breast biopsy (core/needle or incisional/excisional) and pathology results; (5) time between open (incisional/excisional) and pathology results; and (6) time between initial breast cancer surgery and pathology results. Quality measures from the NQF include (1) radiation therapy administration within 1 year of diagnosis; (2) combination chemotherapy considered or administered within 4 months (120 days) of diagnosis; and (3) tamoxifen or third-generation aromatase inhibitor (AI) considered or administered within 4 months (120 days) of diagnosis.
Results: Outcomes for baseline data for n = 30 patients demonstrated (1) time between diagnostic mammogram and open surgical biopsy/excision—52 days; (2) time between diagnostic mammogram and needle/core biopsy—50 days; (3) time between needle biopsy and initial breast cancer surgery—32 days; (4) time between initial breast biopsy (core/needle or incisional/excisional); and (5) pathology results—8 days. Quality measures from the NQF include (1) radiation therapy administration within 1 year of diagnosis—92%; (2) combination chemotherapy considered or administered within 4 months (120 days) of diagnosis—72%; and (3) tamoxifen or third-generation AI is considered or administered within 4 months (120 days) of diagnosis—72%.
Conclusions: Verification of tool data indicated the need for additional columns and definitions to accurately report timeliness measures. Patient refusal of care was included in data, although it skewed the data. Refusal of care will be individually analyzed to make sure patients were educated regarding disease process and scope of treatment options, which indicate informed consent. Facility goals for timeliness range from 2 to 30 days. Quality measure goal is 100%. As a continual evaluation process occurs, monitoring and adjustment of processes will advance our facility closer to meeting its goal of providing comprehensive quality breast care to our women veterans.
Purpose: Development of a quality improvement (QI) tracking tool that allows staff to monitor care on an ongoing basis and make changes and modify system processes to improve outcomes for breast cancer care. The National Quality Forum (NQF) of the Commission on Cancer and National Consortium of Breast Centers Program (NQMBC) have collaborated and defined breast cancer quality measures. Timeliness and quality of breast cancer care will have a direct impact on quality of life and survivorship. The West Palm Beach VAMC did not have a process in place for data collection and ongoing performance improvement for breast cancer care.
Methods: The major aims of the project are to (1)Identify collaborative team members; (2) identify standardized benchmarks that track timeliness and quality of care; and (3) create a tracking tool to enter data that automatically measures timeliness and quality of care. A collaborative group of staff from the cancer registry, women’s health department, radiology, oncology, pathology, and applied systems engineers met biweekly/monthly over 9 months to add, define, and continuously retest data entry sets within the tool. Several timeliness measures have been identified by the NQMBC. The final measures for our facility were chosen by a multidisciplinary breast cancer committee and approved by the cancer committee. Timeliness measures included (1) time between diagnostic mammogram and open surgical biopsy/excision; (2) time between diagnostic mammogram and needle/core biopsy; (3) time between needle biopsy and initial breast cancer surgery; (4) time between initial breast biopsy (core/needle or incisional/excisional) and pathology results; (5) time between open (incisional/excisional) and pathology results; and (6) time between initial breast cancer surgery and pathology results. Quality measures from the NQF include (1) radiation therapy administration within 1 year of diagnosis; (2) combination chemotherapy considered or administered within 4 months (120 days) of diagnosis; and (3) tamoxifen or third-generation aromatase inhibitor (AI) considered or administered within 4 months (120 days) of diagnosis.
Results: Outcomes for baseline data for n = 30 patients demonstrated (1) time between diagnostic mammogram and open surgical biopsy/excision—52 days; (2) time between diagnostic mammogram and needle/core biopsy—50 days; (3) time between needle biopsy and initial breast cancer surgery—32 days; (4) time between initial breast biopsy (core/needle or incisional/excisional); and (5) pathology results—8 days. Quality measures from the NQF include (1) radiation therapy administration within 1 year of diagnosis—92%; (2) combination chemotherapy considered or administered within 4 months (120 days) of diagnosis—72%; and (3) tamoxifen or third-generation AI is considered or administered within 4 months (120 days) of diagnosis—72%.
Conclusions: Verification of tool data indicated the need for additional columns and definitions to accurately report timeliness measures. Patient refusal of care was included in data, although it skewed the data. Refusal of care will be individually analyzed to make sure patients were educated regarding disease process and scope of treatment options, which indicate informed consent. Facility goals for timeliness range from 2 to 30 days. Quality measure goal is 100%. As a continual evaluation process occurs, monitoring and adjustment of processes will advance our facility closer to meeting its goal of providing comprehensive quality breast care to our women veterans.
Targeting Tubulin and CK2 in Small-Cell Lung Cancer
Purpose: Small-cell lung cancer (SCLC) is a rapidly-progressive and highly fatal disease, and new treatments are needed. Increased expression of ß-III tubulin (TUBB3) correlates with decreased response to paclitaxel in multiple cancers. We have discovered that TUBB3 is highly expressed in SCLC pathology samples. CK2 is a serine/threonine kinase with over 300 substrates and is overexpressed in many cancers. CK2 interacts with the microtubule apparatus and may be related to TUBB3-mediated drug resistance in cancer cells. Our hypothesis is that simultaneous targeting of microtubules and CK2 will be an effective strategy in decreasing SCLC proliferation.
Methods: Cell proliferation experiments were conducted as follows. SCLC cell lines H69 and H209 were maintained in appropriate media at 5% CO2 and 37°C. A 96-well microtiter plate was seeded with 100 μL of cell suspension at 1 x 104 cells/well. After 20 hours or 68 hours of incubation with Ixabepilone (LC Laboratories), 10 μL of Cell Counting Kit-8 (Dojindo) reagent was added to each well, followed by incubation for 4 hours for total incubations of 24 hours or 72 hours. Absorbance was read at 450 nm. All experiments were performed in triplicate. Cells were lysed in lysis buffer and cleared by centrifugation at 4°C. Proteins were resolved on 10% or 12% SDS PAGE gels, transferred onto PVDF membranes, and blocked with 5% nonfat dry milk in TBS-T followed by incubation with primary antibody diluted in TBS-T (mouse TUBB3 [MMS-435P, Covance] at a dilution of 1:2,000 or rabbit CK2α [A300-197A, Bethyl Laboratories]) plus Anti-CK2α’ (A300-199A, Bethyl Laboratories) at a dilution of 1:3,000. Blots were washed and incubated with horseradish peroxidase-conjugated secondary antibody diluted in TBS-T (Anti-mouse [Santa Cruz Biotech] at 1:25,000 and Anti-rabbit at 1:1,000). Antibody complexes were visualized, using an enhanced chemiluminescent Western blot detection system (Thermo Fisher Scientific).
Results: Previously, we demonstrated that TUBB3 is highly expressed in about 85% of SCLC cases. In the current study, multiple SCLC cell lines were evaluated for TUBB3 and CK2 expression via immunoblotting. In all cell lines, bands corresponding to the molecular weights of TUBB3 and CK2 were observed at multiple protein lysate concentrations. Ixabepilone is a microtubule-stabilizing analogue of epothilone B that is thought to preferentially bind the TUBB3 isotype. Incubation of ixabepilone with H69 and H209 SCLC cell lines at 25 mM resulted in 8.6% and 5.3% inhibition, respectively, after 24 hours and 14.0% and 20.6% inhibition, respectively, after 72 hours. Incubation of ixabepilone with H69 and H209 SCLC cell lines at 100 mM resulted in 29.2% and 7.0% inhibition, respectively, after 24 hours and 47.5% and 32.2% inhibition, respectively, after 72 hours.
Conclusions: TUBB3 and CK2 were expressed in SCLC cell lines. Ixabepilone has modest activity against SCLC cell lines and will be further evaluated to obtain IC50 values. We will further evaluate the effect of CK2 inhibition in the presence and absence of ixabepilone and paclitaxel. The work described here may contribute to new therapeutic strategies for SCLC.
Purpose: Small-cell lung cancer (SCLC) is a rapidly-progressive and highly fatal disease, and new treatments are needed. Increased expression of ß-III tubulin (TUBB3) correlates with decreased response to paclitaxel in multiple cancers. We have discovered that TUBB3 is highly expressed in SCLC pathology samples. CK2 is a serine/threonine kinase with over 300 substrates and is overexpressed in many cancers. CK2 interacts with the microtubule apparatus and may be related to TUBB3-mediated drug resistance in cancer cells. Our hypothesis is that simultaneous targeting of microtubules and CK2 will be an effective strategy in decreasing SCLC proliferation.
Methods: Cell proliferation experiments were conducted as follows. SCLC cell lines H69 and H209 were maintained in appropriate media at 5% CO2 and 37°C. A 96-well microtiter plate was seeded with 100 μL of cell suspension at 1 x 104 cells/well. After 20 hours or 68 hours of incubation with Ixabepilone (LC Laboratories), 10 μL of Cell Counting Kit-8 (Dojindo) reagent was added to each well, followed by incubation for 4 hours for total incubations of 24 hours or 72 hours. Absorbance was read at 450 nm. All experiments were performed in triplicate. Cells were lysed in lysis buffer and cleared by centrifugation at 4°C. Proteins were resolved on 10% or 12% SDS PAGE gels, transferred onto PVDF membranes, and blocked with 5% nonfat dry milk in TBS-T followed by incubation with primary antibody diluted in TBS-T (mouse TUBB3 [MMS-435P, Covance] at a dilution of 1:2,000 or rabbit CK2α [A300-197A, Bethyl Laboratories]) plus Anti-CK2α’ (A300-199A, Bethyl Laboratories) at a dilution of 1:3,000. Blots were washed and incubated with horseradish peroxidase-conjugated secondary antibody diluted in TBS-T (Anti-mouse [Santa Cruz Biotech] at 1:25,000 and Anti-rabbit at 1:1,000). Antibody complexes were visualized, using an enhanced chemiluminescent Western blot detection system (Thermo Fisher Scientific).
Results: Previously, we demonstrated that TUBB3 is highly expressed in about 85% of SCLC cases. In the current study, multiple SCLC cell lines were evaluated for TUBB3 and CK2 expression via immunoblotting. In all cell lines, bands corresponding to the molecular weights of TUBB3 and CK2 were observed at multiple protein lysate concentrations. Ixabepilone is a microtubule-stabilizing analogue of epothilone B that is thought to preferentially bind the TUBB3 isotype. Incubation of ixabepilone with H69 and H209 SCLC cell lines at 25 mM resulted in 8.6% and 5.3% inhibition, respectively, after 24 hours and 14.0% and 20.6% inhibition, respectively, after 72 hours. Incubation of ixabepilone with H69 and H209 SCLC cell lines at 100 mM resulted in 29.2% and 7.0% inhibition, respectively, after 24 hours and 47.5% and 32.2% inhibition, respectively, after 72 hours.
Conclusions: TUBB3 and CK2 were expressed in SCLC cell lines. Ixabepilone has modest activity against SCLC cell lines and will be further evaluated to obtain IC50 values. We will further evaluate the effect of CK2 inhibition in the presence and absence of ixabepilone and paclitaxel. The work described here may contribute to new therapeutic strategies for SCLC.
Purpose: Small-cell lung cancer (SCLC) is a rapidly-progressive and highly fatal disease, and new treatments are needed. Increased expression of ß-III tubulin (TUBB3) correlates with decreased response to paclitaxel in multiple cancers. We have discovered that TUBB3 is highly expressed in SCLC pathology samples. CK2 is a serine/threonine kinase with over 300 substrates and is overexpressed in many cancers. CK2 interacts with the microtubule apparatus and may be related to TUBB3-mediated drug resistance in cancer cells. Our hypothesis is that simultaneous targeting of microtubules and CK2 will be an effective strategy in decreasing SCLC proliferation.
Methods: Cell proliferation experiments were conducted as follows. SCLC cell lines H69 and H209 were maintained in appropriate media at 5% CO2 and 37°C. A 96-well microtiter plate was seeded with 100 μL of cell suspension at 1 x 104 cells/well. After 20 hours or 68 hours of incubation with Ixabepilone (LC Laboratories), 10 μL of Cell Counting Kit-8 (Dojindo) reagent was added to each well, followed by incubation for 4 hours for total incubations of 24 hours or 72 hours. Absorbance was read at 450 nm. All experiments were performed in triplicate. Cells were lysed in lysis buffer and cleared by centrifugation at 4°C. Proteins were resolved on 10% or 12% SDS PAGE gels, transferred onto PVDF membranes, and blocked with 5% nonfat dry milk in TBS-T followed by incubation with primary antibody diluted in TBS-T (mouse TUBB3 [MMS-435P, Covance] at a dilution of 1:2,000 or rabbit CK2α [A300-197A, Bethyl Laboratories]) plus Anti-CK2α’ (A300-199A, Bethyl Laboratories) at a dilution of 1:3,000. Blots were washed and incubated with horseradish peroxidase-conjugated secondary antibody diluted in TBS-T (Anti-mouse [Santa Cruz Biotech] at 1:25,000 and Anti-rabbit at 1:1,000). Antibody complexes were visualized, using an enhanced chemiluminescent Western blot detection system (Thermo Fisher Scientific).
Results: Previously, we demonstrated that TUBB3 is highly expressed in about 85% of SCLC cases. In the current study, multiple SCLC cell lines were evaluated for TUBB3 and CK2 expression via immunoblotting. In all cell lines, bands corresponding to the molecular weights of TUBB3 and CK2 were observed at multiple protein lysate concentrations. Ixabepilone is a microtubule-stabilizing analogue of epothilone B that is thought to preferentially bind the TUBB3 isotype. Incubation of ixabepilone with H69 and H209 SCLC cell lines at 25 mM resulted in 8.6% and 5.3% inhibition, respectively, after 24 hours and 14.0% and 20.6% inhibition, respectively, after 72 hours. Incubation of ixabepilone with H69 and H209 SCLC cell lines at 100 mM resulted in 29.2% and 7.0% inhibition, respectively, after 24 hours and 47.5% and 32.2% inhibition, respectively, after 72 hours.
Conclusions: TUBB3 and CK2 were expressed in SCLC cell lines. Ixabepilone has modest activity against SCLC cell lines and will be further evaluated to obtain IC50 values. We will further evaluate the effect of CK2 inhibition in the presence and absence of ixabepilone and paclitaxel. The work described here may contribute to new therapeutic strategies for SCLC.
Incorporation of Palliative Care With Chemotherapy and Radiation in Patients Treated for Head and Neck Cancer
Purpose: Recent studies have suggested that incorporation of palliative care concomitantly with therapy for metastatic cancer may be beneficial. The American Society of Clinical Oncology has published a provisional clinical opinion recommending incorporation of palliative care alongside chemotherapy in patients with metastatic cancer or a high symptom burden from cancer. In this project, we evaluate the feasibility of incorporation of palliative care in patients with head and neck (H&N) cancer treated with concurrent chemotherapy and radiation.
Methods: The primary goal of this quality improvement project is to assess the feasibility of participation in a palliative care program for patients with H&N cancer undergoing treatment. Patients are recommended for palliative care consultation if they have squamous cell carcinoma of the head and neck and are treated with concurrent chemotherapy and radiation (definitive or adjuvant therapy). Patients are offered palliative care consultation in their first week of treatment. They are approached in person to discuss goals and potential benefits of concomitant palliative care and chemotherapy/radiation. All patients are provided with informational material to review. If interested in palliative care, the participant is asked to fill out 5 non-mandatory questionnaires. These include the FACT-H&N, FACIT-Sp-12, PHQ-9, EAT-10, and HADS. Patients are seen by the palliative care service at 6, 12, 26, and 52 weeks after starting chemotherapy/radiation, and patients are asked to fill out the questionnaires at those time points as well. In addition, data on several potential quality elements (weight, use of enteral nutrition, laboratory values, site of disease, p16ink4a status, etc) are collected for comparison with a retrospective cohort.
Results: Retrospective data from the charts of 51 patients have been abstracted and analyzed for comparison with the prospective quality improvement cohort. The median age was 63 (range 48 to 87). Forty-four patients were either stage IVa or IVb. The location of primary tumors included the oropharynx (59%), oral cavity (11.8%), hypopharynx (9.8%), larynx (9.8%), and the nasopharnyx (7.8%). Forty-four of the 51 patients had a percutaneous endoscopic gastrostomy tube (for potential enteral nutrition) placed either prophylactically (before or within the first week of treatment, 19 patients) or reactively (after the first week of treatment, 25 patients). In the prospective cohort, 14 patients have thus far been offered palliative care consultation. Six patients agreed to palliative care consultation and 8 declined. The median age was 62, and all patients were male. Data collection and analysis are ongoing.
Conclusions: The results of this project may be able to guide incorporation of routine palliative care with the treatment of patients with (H&N) cancer. Barriers to enrolling in palliative care concomitantly with chemotherapy and radiation should be considered to aid incorporation of early palliative care for patients with H&N cancer.
Purpose: Recent studies have suggested that incorporation of palliative care concomitantly with therapy for metastatic cancer may be beneficial. The American Society of Clinical Oncology has published a provisional clinical opinion recommending incorporation of palliative care alongside chemotherapy in patients with metastatic cancer or a high symptom burden from cancer. In this project, we evaluate the feasibility of incorporation of palliative care in patients with head and neck (H&N) cancer treated with concurrent chemotherapy and radiation.
Methods: The primary goal of this quality improvement project is to assess the feasibility of participation in a palliative care program for patients with H&N cancer undergoing treatment. Patients are recommended for palliative care consultation if they have squamous cell carcinoma of the head and neck and are treated with concurrent chemotherapy and radiation (definitive or adjuvant therapy). Patients are offered palliative care consultation in their first week of treatment. They are approached in person to discuss goals and potential benefits of concomitant palliative care and chemotherapy/radiation. All patients are provided with informational material to review. If interested in palliative care, the participant is asked to fill out 5 non-mandatory questionnaires. These include the FACT-H&N, FACIT-Sp-12, PHQ-9, EAT-10, and HADS. Patients are seen by the palliative care service at 6, 12, 26, and 52 weeks after starting chemotherapy/radiation, and patients are asked to fill out the questionnaires at those time points as well. In addition, data on several potential quality elements (weight, use of enteral nutrition, laboratory values, site of disease, p16ink4a status, etc) are collected for comparison with a retrospective cohort.
Results: Retrospective data from the charts of 51 patients have been abstracted and analyzed for comparison with the prospective quality improvement cohort. The median age was 63 (range 48 to 87). Forty-four patients were either stage IVa or IVb. The location of primary tumors included the oropharynx (59%), oral cavity (11.8%), hypopharynx (9.8%), larynx (9.8%), and the nasopharnyx (7.8%). Forty-four of the 51 patients had a percutaneous endoscopic gastrostomy tube (for potential enteral nutrition) placed either prophylactically (before or within the first week of treatment, 19 patients) or reactively (after the first week of treatment, 25 patients). In the prospective cohort, 14 patients have thus far been offered palliative care consultation. Six patients agreed to palliative care consultation and 8 declined. The median age was 62, and all patients were male. Data collection and analysis are ongoing.
Conclusions: The results of this project may be able to guide incorporation of routine palliative care with the treatment of patients with (H&N) cancer. Barriers to enrolling in palliative care concomitantly with chemotherapy and radiation should be considered to aid incorporation of early palliative care for patients with H&N cancer.
Purpose: Recent studies have suggested that incorporation of palliative care concomitantly with therapy for metastatic cancer may be beneficial. The American Society of Clinical Oncology has published a provisional clinical opinion recommending incorporation of palliative care alongside chemotherapy in patients with metastatic cancer or a high symptom burden from cancer. In this project, we evaluate the feasibility of incorporation of palliative care in patients with head and neck (H&N) cancer treated with concurrent chemotherapy and radiation.
Methods: The primary goal of this quality improvement project is to assess the feasibility of participation in a palliative care program for patients with H&N cancer undergoing treatment. Patients are recommended for palliative care consultation if they have squamous cell carcinoma of the head and neck and are treated with concurrent chemotherapy and radiation (definitive or adjuvant therapy). Patients are offered palliative care consultation in their first week of treatment. They are approached in person to discuss goals and potential benefits of concomitant palliative care and chemotherapy/radiation. All patients are provided with informational material to review. If interested in palliative care, the participant is asked to fill out 5 non-mandatory questionnaires. These include the FACT-H&N, FACIT-Sp-12, PHQ-9, EAT-10, and HADS. Patients are seen by the palliative care service at 6, 12, 26, and 52 weeks after starting chemotherapy/radiation, and patients are asked to fill out the questionnaires at those time points as well. In addition, data on several potential quality elements (weight, use of enteral nutrition, laboratory values, site of disease, p16ink4a status, etc) are collected for comparison with a retrospective cohort.
Results: Retrospective data from the charts of 51 patients have been abstracted and analyzed for comparison with the prospective quality improvement cohort. The median age was 63 (range 48 to 87). Forty-four patients were either stage IVa or IVb. The location of primary tumors included the oropharynx (59%), oral cavity (11.8%), hypopharynx (9.8%), larynx (9.8%), and the nasopharnyx (7.8%). Forty-four of the 51 patients had a percutaneous endoscopic gastrostomy tube (for potential enteral nutrition) placed either prophylactically (before or within the first week of treatment, 19 patients) or reactively (after the first week of treatment, 25 patients). In the prospective cohort, 14 patients have thus far been offered palliative care consultation. Six patients agreed to palliative care consultation and 8 declined. The median age was 62, and all patients were male. Data collection and analysis are ongoing.
Conclusions: The results of this project may be able to guide incorporation of routine palliative care with the treatment of patients with (H&N) cancer. Barriers to enrolling in palliative care concomitantly with chemotherapy and radiation should be considered to aid incorporation of early palliative care for patients with H&N cancer.
Cisplatin and Etoposide vs Carboplatin and Paclitaxel With Concurrent Radiation for Stage III Non-Small Cell Lung Cancer: An Analysis of VHA Data
Purpose: For the definitive treatment of stage III NSCLC, the optimal chemotherapy regimen to use with radiation is not clearly defined. Using a large cohort of patients treated across VHAs, we compare the outcome of patents treated with cisplatin and etoposide (EP) vs those treated with carboplatin and paclitaxel (CP).
Methods: Using the VA Central Cancer Registry, patients with stage III non-small cell lung cancer (NSCLC) diagnosed between 2001 and 2010 were identified. For analysis, patients were included if concurrent chemoradiotherapy was initiated within 4 months of diagnosis and excluded if treated with surgery or sequential chemoradiotherapy (ie, chemotherapy was not started within 7 days of the start of radiotherapy).
Results: Out of 17,010 patients identified, 1,856 patients were eligible for analysis of which 28% (n = 565) received EP. In multivariable analysis, the use of EP was not associated with any survival advantage (HR 0.88; 95% CI 0.79-0.99; P = .0254). In a propensity score analysis that matched 382 patients treated with EP with the same number of patients treated with CP, there was no survival advantage for EP (HR 0.96; 95% CI 0.83-1.11; P = .5572). Subsequently, a multivariate model weighted on the inverse propensity for being treated with EP was fitted and similarly showed no survival advantage for EP (HR 0.95; 95% CI, 0.84-1.08; P = .4525). Finally, an instrumental variable analysis was used to compare matched patients between 8 VHAs that were “EP-encouraged” (ie, > 50% received EP, mean 71.1%) with 11 VHAs that were “EP-discouraged” (ie, < 10% received EP, mean 2.8%). This analysis found no survival advantage for EP (HR 1.06; 95% CI, 0.90-1.26; P = .4766). When adverse events were compared with CP, patients treated with EP had increased hospitalization (2.4 vs 1.7, P < .01), outpatient visits (17.6 vs 12.6, P <.01), infectious complications (47.6% vs 39.6%, P < .0001), acute renal failure (30.3 vs 21.3%, P <.0001), and mucositis/esophagitis (18.7 vs 14.5%, P = 0.0251).
Conclusions: After accounting for various prognostic variables, matched cohorts, and regional differences, there were no differences in survival between patients treated with EP and CP; however, EP was associated with increased morbidity.
Purpose: For the definitive treatment of stage III NSCLC, the optimal chemotherapy regimen to use with radiation is not clearly defined. Using a large cohort of patients treated across VHAs, we compare the outcome of patents treated with cisplatin and etoposide (EP) vs those treated with carboplatin and paclitaxel (CP).
Methods: Using the VA Central Cancer Registry, patients with stage III non-small cell lung cancer (NSCLC) diagnosed between 2001 and 2010 were identified. For analysis, patients were included if concurrent chemoradiotherapy was initiated within 4 months of diagnosis and excluded if treated with surgery or sequential chemoradiotherapy (ie, chemotherapy was not started within 7 days of the start of radiotherapy).
Results: Out of 17,010 patients identified, 1,856 patients were eligible for analysis of which 28% (n = 565) received EP. In multivariable analysis, the use of EP was not associated with any survival advantage (HR 0.88; 95% CI 0.79-0.99; P = .0254). In a propensity score analysis that matched 382 patients treated with EP with the same number of patients treated with CP, there was no survival advantage for EP (HR 0.96; 95% CI 0.83-1.11; P = .5572). Subsequently, a multivariate model weighted on the inverse propensity for being treated with EP was fitted and similarly showed no survival advantage for EP (HR 0.95; 95% CI, 0.84-1.08; P = .4525). Finally, an instrumental variable analysis was used to compare matched patients between 8 VHAs that were “EP-encouraged” (ie, > 50% received EP, mean 71.1%) with 11 VHAs that were “EP-discouraged” (ie, < 10% received EP, mean 2.8%). This analysis found no survival advantage for EP (HR 1.06; 95% CI, 0.90-1.26; P = .4766). When adverse events were compared with CP, patients treated with EP had increased hospitalization (2.4 vs 1.7, P < .01), outpatient visits (17.6 vs 12.6, P <.01), infectious complications (47.6% vs 39.6%, P < .0001), acute renal failure (30.3 vs 21.3%, P <.0001), and mucositis/esophagitis (18.7 vs 14.5%, P = 0.0251).
Conclusions: After accounting for various prognostic variables, matched cohorts, and regional differences, there were no differences in survival between patients treated with EP and CP; however, EP was associated with increased morbidity.
Purpose: For the definitive treatment of stage III NSCLC, the optimal chemotherapy regimen to use with radiation is not clearly defined. Using a large cohort of patients treated across VHAs, we compare the outcome of patents treated with cisplatin and etoposide (EP) vs those treated with carboplatin and paclitaxel (CP).
Methods: Using the VA Central Cancer Registry, patients with stage III non-small cell lung cancer (NSCLC) diagnosed between 2001 and 2010 were identified. For analysis, patients were included if concurrent chemoradiotherapy was initiated within 4 months of diagnosis and excluded if treated with surgery or sequential chemoradiotherapy (ie, chemotherapy was not started within 7 days of the start of radiotherapy).
Results: Out of 17,010 patients identified, 1,856 patients were eligible for analysis of which 28% (n = 565) received EP. In multivariable analysis, the use of EP was not associated with any survival advantage (HR 0.88; 95% CI 0.79-0.99; P = .0254). In a propensity score analysis that matched 382 patients treated with EP with the same number of patients treated with CP, there was no survival advantage for EP (HR 0.96; 95% CI 0.83-1.11; P = .5572). Subsequently, a multivariate model weighted on the inverse propensity for being treated with EP was fitted and similarly showed no survival advantage for EP (HR 0.95; 95% CI, 0.84-1.08; P = .4525). Finally, an instrumental variable analysis was used to compare matched patients between 8 VHAs that were “EP-encouraged” (ie, > 50% received EP, mean 71.1%) with 11 VHAs that were “EP-discouraged” (ie, < 10% received EP, mean 2.8%). This analysis found no survival advantage for EP (HR 1.06; 95% CI, 0.90-1.26; P = .4766). When adverse events were compared with CP, patients treated with EP had increased hospitalization (2.4 vs 1.7, P < .01), outpatient visits (17.6 vs 12.6, P <.01), infectious complications (47.6% vs 39.6%, P < .0001), acute renal failure (30.3 vs 21.3%, P <.0001), and mucositis/esophagitis (18.7 vs 14.5%, P = 0.0251).
Conclusions: After accounting for various prognostic variables, matched cohorts, and regional differences, there were no differences in survival between patients treated with EP and CP; however, EP was associated with increased morbidity.
Extra Pulmonary Small Cell Carcinoma: A Single Center Experience
Purpose: Extrapulmonary small cell carcinoma (ESCC) has been a difficult disease to manage since it was first described > 80 years ago. Definitive treatment recommendations are lacking, and the treatment strategies commonly utilized are extrapolated from our experience with pulmonary small cell carcinoma. A better understanding of this entity will improve our collective management. By pooling our collective knowledge, we will hopefully be able to draw some meaningful conclusions about this disease.
Methods: The University of Kansas tumor registry was reviewed from 1990-2013. Forty-two potential cases of ESCC were identified and the charts reviewed. Of these, 35 cases met the inclusion and exclusion criteria for review. Information gathered included age, gender, smoking status, weight loss, metastatic disease related data, stage, ECOG performance status (PS), treatment received, and survival data.
Results: Patients were evaluated with a variety of primary locations of disease including gastrointestinal (GI) tract, genitourinary (GU) tract, pelvic organs, head and neck, and unknown primary. Several sites of metastatic disease were noted, with 57% and 43% of patients meeting criteria for limited disease and extensive disease, respectively. Chemotherapy, surgery, and radiation were used in several different regimens, with small-cell lung cancer-type regimens incorporating a platinum and etoposide being the most common. Kaplan-Meier survival estimates were used to identify possible prognostic variables including stage, primary site, number of treatment modalities received, use of chemotherapy in limited stage disease, and ECOG PS.
Conclusions: In our review of 35 patients, GI (29%) and GU (31%) tract tumors were the most common primary sites of disease with a male to female predominance and 57% of patients presenting with limited disease. The majority of patients treated with chemotherapy received a platinum/etoposide doublet (74%), and almost half received radiation (43%). Statistically significant prognostic factors included stage, ECOG PS, site of primary disease, use of chemotherapy, and number of treatment modalities used. Additional clinical trials are needed to better understand this rare disorder to further our knowledge of the optimum management approach.
Purpose: Extrapulmonary small cell carcinoma (ESCC) has been a difficult disease to manage since it was first described > 80 years ago. Definitive treatment recommendations are lacking, and the treatment strategies commonly utilized are extrapolated from our experience with pulmonary small cell carcinoma. A better understanding of this entity will improve our collective management. By pooling our collective knowledge, we will hopefully be able to draw some meaningful conclusions about this disease.
Methods: The University of Kansas tumor registry was reviewed from 1990-2013. Forty-two potential cases of ESCC were identified and the charts reviewed. Of these, 35 cases met the inclusion and exclusion criteria for review. Information gathered included age, gender, smoking status, weight loss, metastatic disease related data, stage, ECOG performance status (PS), treatment received, and survival data.
Results: Patients were evaluated with a variety of primary locations of disease including gastrointestinal (GI) tract, genitourinary (GU) tract, pelvic organs, head and neck, and unknown primary. Several sites of metastatic disease were noted, with 57% and 43% of patients meeting criteria for limited disease and extensive disease, respectively. Chemotherapy, surgery, and radiation were used in several different regimens, with small-cell lung cancer-type regimens incorporating a platinum and etoposide being the most common. Kaplan-Meier survival estimates were used to identify possible prognostic variables including stage, primary site, number of treatment modalities received, use of chemotherapy in limited stage disease, and ECOG PS.
Conclusions: In our review of 35 patients, GI (29%) and GU (31%) tract tumors were the most common primary sites of disease with a male to female predominance and 57% of patients presenting with limited disease. The majority of patients treated with chemotherapy received a platinum/etoposide doublet (74%), and almost half received radiation (43%). Statistically significant prognostic factors included stage, ECOG PS, site of primary disease, use of chemotherapy, and number of treatment modalities used. Additional clinical trials are needed to better understand this rare disorder to further our knowledge of the optimum management approach.
Purpose: Extrapulmonary small cell carcinoma (ESCC) has been a difficult disease to manage since it was first described > 80 years ago. Definitive treatment recommendations are lacking, and the treatment strategies commonly utilized are extrapolated from our experience with pulmonary small cell carcinoma. A better understanding of this entity will improve our collective management. By pooling our collective knowledge, we will hopefully be able to draw some meaningful conclusions about this disease.
Methods: The University of Kansas tumor registry was reviewed from 1990-2013. Forty-two potential cases of ESCC were identified and the charts reviewed. Of these, 35 cases met the inclusion and exclusion criteria for review. Information gathered included age, gender, smoking status, weight loss, metastatic disease related data, stage, ECOG performance status (PS), treatment received, and survival data.
Results: Patients were evaluated with a variety of primary locations of disease including gastrointestinal (GI) tract, genitourinary (GU) tract, pelvic organs, head and neck, and unknown primary. Several sites of metastatic disease were noted, with 57% and 43% of patients meeting criteria for limited disease and extensive disease, respectively. Chemotherapy, surgery, and radiation were used in several different regimens, with small-cell lung cancer-type regimens incorporating a platinum and etoposide being the most common. Kaplan-Meier survival estimates were used to identify possible prognostic variables including stage, primary site, number of treatment modalities received, use of chemotherapy in limited stage disease, and ECOG PS.
Conclusions: In our review of 35 patients, GI (29%) and GU (31%) tract tumors were the most common primary sites of disease with a male to female predominance and 57% of patients presenting with limited disease. The majority of patients treated with chemotherapy received a platinum/etoposide doublet (74%), and almost half received radiation (43%). Statistically significant prognostic factors included stage, ECOG PS, site of primary disease, use of chemotherapy, and number of treatment modalities used. Additional clinical trials are needed to better understand this rare disorder to further our knowledge of the optimum management approach.
Geographic Distribution of Rural-Urban Status of Women With Breast Cancer in Veterans Health Administration, Using 2 Plans: Rural Urban Continuum and Rural Urban Commuting Areas
Purpose: Women with breast cancer (BC) are increasingly diagnosed and treated within the VHA. Breast cancer requires specialized care in tertiary settings such as VAMCs, typically located in urban settings, placing BC patients in rural areas at a disadvantage. Assigning rural-urban status is complicated by the presence of multiple classification plans. In this report, we compare rural-urban status of BC patients in the VHA and its association with distance to nearest VAMC, using 2 plans: USDA Economic Research Service (ERS) Rural Urban Continuum (RUC) and University of Washington’s Rural Urban Commuting Areas 2.0 (RUCA).
Methods: Between 2000 and 2012, 3,622 women were diagnosed with and/or treated for BC within the VHA and recorded in the VA Central Cancer Registry (VA CCR). The patient’s zip code of residence at the time of diagnosis and rural-urban status according to USDA ERS RUC were obtained from the VA CCR. Rural urban commuting status was aggregated into 3 categories: metropolitan, large nonmetropolitan, and rural. Using zip code of residence, rural-urban status of all but 63 women was determined using the University of Washington’s (RUCA) plan and aggregated into 3 categories: urban (metropolitan), large rural or micropolitan, and small rural/isolated small rural. The VHA is organized into 21 regional administrative service networks, or VISNs. The geographic distribution of BC in VHA was determined using the RUC and RUCA scheme, then reported by VISN Census Bureau geographic region: Northeast, Midwest, South, and West. The two plans were compared, using Cohen’s Kappa statistic. The distance between zip code of residence and the nearest within-VISN VAMC was obtained from the VA Planning Systems Support Group database. The association between rural-urban status according to RUC and RUCA and the distance to the nearest VAMC was determined using analysis of variance (ANOVA).
Results: Rural-urban status according to RUC and RUCA were strongly associated (Cohen’s Kappa 0.74, P < .001). About 80% of women with BC in VHA resided in metropolitan areas; the remaining women were split evenly between large nonmetropolitan/micropolitan and rural/small, isolated rural. The Midwest had the highest percentages of both large rural (14%) and small/isolated rural patients (17%), whereas patients in the Northeast had the smallest percentages of large rural (8%) and small/isolated rural patients (7%). Patients living in the Northeast had the shortest travel distances to the nearest within-VISN VAMC, whereas patients in the West had the longest distances. In the Northeast, the average distance to nearest VAMC increased from 11 miles for patients living in metropolitan areas, to 44 miles in small/isolated rural areas. In the West, patients living in metropolitan areas were on average, 37 miles from nearest VAMC. This increased to 124 miles for patients in small/isolated rural areas in the West. Both classifications were significantly associated with increased distance to nearest VAMC (P < .001). On multivariate analysis, rural residence remained significantly associated with increased distance to nearest VAMC (P = .01) even after adjusting for RUCA.
Conclusions: Women with BC living in rural areas must travel longer distances to their VHA facility to receive specialized cancer care. Various plans define rural-urban status, using different methodologies. The rural-urban status of women with BC in VHA was similar using either RUC or RUCA. Rural residence defined by RUC was significantly associated with longer distances to VAMC even after adjusting for RUCA. This suggests that the 2 methodologies are not identical but are highly related when being compared with distance from tertiary care. The choice of rural classification methodology should be considered carefully when researching rural status and cancer outcomes.
Purpose: Women with breast cancer (BC) are increasingly diagnosed and treated within the VHA. Breast cancer requires specialized care in tertiary settings such as VAMCs, typically located in urban settings, placing BC patients in rural areas at a disadvantage. Assigning rural-urban status is complicated by the presence of multiple classification plans. In this report, we compare rural-urban status of BC patients in the VHA and its association with distance to nearest VAMC, using 2 plans: USDA Economic Research Service (ERS) Rural Urban Continuum (RUC) and University of Washington’s Rural Urban Commuting Areas 2.0 (RUCA).
Methods: Between 2000 and 2012, 3,622 women were diagnosed with and/or treated for BC within the VHA and recorded in the VA Central Cancer Registry (VA CCR). The patient’s zip code of residence at the time of diagnosis and rural-urban status according to USDA ERS RUC were obtained from the VA CCR. Rural urban commuting status was aggregated into 3 categories: metropolitan, large nonmetropolitan, and rural. Using zip code of residence, rural-urban status of all but 63 women was determined using the University of Washington’s (RUCA) plan and aggregated into 3 categories: urban (metropolitan), large rural or micropolitan, and small rural/isolated small rural. The VHA is organized into 21 regional administrative service networks, or VISNs. The geographic distribution of BC in VHA was determined using the RUC and RUCA scheme, then reported by VISN Census Bureau geographic region: Northeast, Midwest, South, and West. The two plans were compared, using Cohen’s Kappa statistic. The distance between zip code of residence and the nearest within-VISN VAMC was obtained from the VA Planning Systems Support Group database. The association between rural-urban status according to RUC and RUCA and the distance to the nearest VAMC was determined using analysis of variance (ANOVA).
Results: Rural-urban status according to RUC and RUCA were strongly associated (Cohen’s Kappa 0.74, P < .001). About 80% of women with BC in VHA resided in metropolitan areas; the remaining women were split evenly between large nonmetropolitan/micropolitan and rural/small, isolated rural. The Midwest had the highest percentages of both large rural (14%) and small/isolated rural patients (17%), whereas patients in the Northeast had the smallest percentages of large rural (8%) and small/isolated rural patients (7%). Patients living in the Northeast had the shortest travel distances to the nearest within-VISN VAMC, whereas patients in the West had the longest distances. In the Northeast, the average distance to nearest VAMC increased from 11 miles for patients living in metropolitan areas, to 44 miles in small/isolated rural areas. In the West, patients living in metropolitan areas were on average, 37 miles from nearest VAMC. This increased to 124 miles for patients in small/isolated rural areas in the West. Both classifications were significantly associated with increased distance to nearest VAMC (P < .001). On multivariate analysis, rural residence remained significantly associated with increased distance to nearest VAMC (P = .01) even after adjusting for RUCA.
Conclusions: Women with BC living in rural areas must travel longer distances to their VHA facility to receive specialized cancer care. Various plans define rural-urban status, using different methodologies. The rural-urban status of women with BC in VHA was similar using either RUC or RUCA. Rural residence defined by RUC was significantly associated with longer distances to VAMC even after adjusting for RUCA. This suggests that the 2 methodologies are not identical but are highly related when being compared with distance from tertiary care. The choice of rural classification methodology should be considered carefully when researching rural status and cancer outcomes.
Purpose: Women with breast cancer (BC) are increasingly diagnosed and treated within the VHA. Breast cancer requires specialized care in tertiary settings such as VAMCs, typically located in urban settings, placing BC patients in rural areas at a disadvantage. Assigning rural-urban status is complicated by the presence of multiple classification plans. In this report, we compare rural-urban status of BC patients in the VHA and its association with distance to nearest VAMC, using 2 plans: USDA Economic Research Service (ERS) Rural Urban Continuum (RUC) and University of Washington’s Rural Urban Commuting Areas 2.0 (RUCA).
Methods: Between 2000 and 2012, 3,622 women were diagnosed with and/or treated for BC within the VHA and recorded in the VA Central Cancer Registry (VA CCR). The patient’s zip code of residence at the time of diagnosis and rural-urban status according to USDA ERS RUC were obtained from the VA CCR. Rural urban commuting status was aggregated into 3 categories: metropolitan, large nonmetropolitan, and rural. Using zip code of residence, rural-urban status of all but 63 women was determined using the University of Washington’s (RUCA) plan and aggregated into 3 categories: urban (metropolitan), large rural or micropolitan, and small rural/isolated small rural. The VHA is organized into 21 regional administrative service networks, or VISNs. The geographic distribution of BC in VHA was determined using the RUC and RUCA scheme, then reported by VISN Census Bureau geographic region: Northeast, Midwest, South, and West. The two plans were compared, using Cohen’s Kappa statistic. The distance between zip code of residence and the nearest within-VISN VAMC was obtained from the VA Planning Systems Support Group database. The association between rural-urban status according to RUC and RUCA and the distance to the nearest VAMC was determined using analysis of variance (ANOVA).
Results: Rural-urban status according to RUC and RUCA were strongly associated (Cohen’s Kappa 0.74, P < .001). About 80% of women with BC in VHA resided in metropolitan areas; the remaining women were split evenly between large nonmetropolitan/micropolitan and rural/small, isolated rural. The Midwest had the highest percentages of both large rural (14%) and small/isolated rural patients (17%), whereas patients in the Northeast had the smallest percentages of large rural (8%) and small/isolated rural patients (7%). Patients living in the Northeast had the shortest travel distances to the nearest within-VISN VAMC, whereas patients in the West had the longest distances. In the Northeast, the average distance to nearest VAMC increased from 11 miles for patients living in metropolitan areas, to 44 miles in small/isolated rural areas. In the West, patients living in metropolitan areas were on average, 37 miles from nearest VAMC. This increased to 124 miles for patients in small/isolated rural areas in the West. Both classifications were significantly associated with increased distance to nearest VAMC (P < .001). On multivariate analysis, rural residence remained significantly associated with increased distance to nearest VAMC (P = .01) even after adjusting for RUCA.
Conclusions: Women with BC living in rural areas must travel longer distances to their VHA facility to receive specialized cancer care. Various plans define rural-urban status, using different methodologies. The rural-urban status of women with BC in VHA was similar using either RUC or RUCA. Rural residence defined by RUC was significantly associated with longer distances to VAMC even after adjusting for RUCA. This suggests that the 2 methodologies are not identical but are highly related when being compared with distance from tertiary care. The choice of rural classification methodology should be considered carefully when researching rural status and cancer outcomes.
Incidence of Second Primary Malignancies in Patients Treated for Thyroid Cancer: A Review of 51 Cases
Purpose: The incidence of the second primary cancer after treatment with radioactive iodine (RAI) is a concern for patients and clinicians. Our objective was to examine the changes that have occurred over a 20-year period in a single institution, by comparing the lifetime observed incidence of the second primary cancer vs those patients with the incidence after the treatment with RAI.
Method: We reviewed all thyroid cancer cases (n = 51) between 1991 and 2010 in the VA New Jersey cancer registry. Patients were distributed into 4 groups consisting of 5-year intervals. These groups were based on accession year and then segregated again into groups that received radioactive iodine and groups that did not. Then, we reviewed the incidence of multiple primaries during the life of the patient and the incidence of a second primary after the diagnoses of thyroid cancer. The incidence of second primary malignancy and age distribution of these groups over the study period was also compared.
Results: An increase in the number of cases diagnosed over the last 20 years was noted. There were a total of 12 cases in the first 10 years compared with 39 cases in the last 10 years. During this period, the total number of all cancer cases accessioned by the registry per year remained stable and constant. However, the increases were significant in the last 5 years; comprising more than half of all cases diagnosed in this 20-year period. There was an observed difference in the average age at diagnosis with the mean age for the first 10 years being 56 years in comparison to the past 10 years, which was 61 years. Also, patients who received radioactive iodine were consistently younger than the group who did not receive RAI. The lifetime incidence of multiple primaries was about 50% in the entire group. The incidence remains similar in each period examined and in all the groups. However, there is an observed difference in the incidence of second primary in the RAI group after treatment compared with those who did not received RAI.
Conclusions: There was an increase in the incidence of thyroid cancer diagnosed over the 20-year period, and the overall incidence of multiple primaries during this time span remained consistent. However, the observed incidence of the second primary after the diagnoses of thyroid cancer was higher in the group who received RAI treatment.
Purpose: The incidence of the second primary cancer after treatment with radioactive iodine (RAI) is a concern for patients and clinicians. Our objective was to examine the changes that have occurred over a 20-year period in a single institution, by comparing the lifetime observed incidence of the second primary cancer vs those patients with the incidence after the treatment with RAI.
Method: We reviewed all thyroid cancer cases (n = 51) between 1991 and 2010 in the VA New Jersey cancer registry. Patients were distributed into 4 groups consisting of 5-year intervals. These groups were based on accession year and then segregated again into groups that received radioactive iodine and groups that did not. Then, we reviewed the incidence of multiple primaries during the life of the patient and the incidence of a second primary after the diagnoses of thyroid cancer. The incidence of second primary malignancy and age distribution of these groups over the study period was also compared.
Results: An increase in the number of cases diagnosed over the last 20 years was noted. There were a total of 12 cases in the first 10 years compared with 39 cases in the last 10 years. During this period, the total number of all cancer cases accessioned by the registry per year remained stable and constant. However, the increases were significant in the last 5 years; comprising more than half of all cases diagnosed in this 20-year period. There was an observed difference in the average age at diagnosis with the mean age for the first 10 years being 56 years in comparison to the past 10 years, which was 61 years. Also, patients who received radioactive iodine were consistently younger than the group who did not receive RAI. The lifetime incidence of multiple primaries was about 50% in the entire group. The incidence remains similar in each period examined and in all the groups. However, there is an observed difference in the incidence of second primary in the RAI group after treatment compared with those who did not received RAI.
Conclusions: There was an increase in the incidence of thyroid cancer diagnosed over the 20-year period, and the overall incidence of multiple primaries during this time span remained consistent. However, the observed incidence of the second primary after the diagnoses of thyroid cancer was higher in the group who received RAI treatment.
Purpose: The incidence of the second primary cancer after treatment with radioactive iodine (RAI) is a concern for patients and clinicians. Our objective was to examine the changes that have occurred over a 20-year period in a single institution, by comparing the lifetime observed incidence of the second primary cancer vs those patients with the incidence after the treatment with RAI.
Method: We reviewed all thyroid cancer cases (n = 51) between 1991 and 2010 in the VA New Jersey cancer registry. Patients were distributed into 4 groups consisting of 5-year intervals. These groups were based on accession year and then segregated again into groups that received radioactive iodine and groups that did not. Then, we reviewed the incidence of multiple primaries during the life of the patient and the incidence of a second primary after the diagnoses of thyroid cancer. The incidence of second primary malignancy and age distribution of these groups over the study period was also compared.
Results: An increase in the number of cases diagnosed over the last 20 years was noted. There were a total of 12 cases in the first 10 years compared with 39 cases in the last 10 years. During this period, the total number of all cancer cases accessioned by the registry per year remained stable and constant. However, the increases were significant in the last 5 years; comprising more than half of all cases diagnosed in this 20-year period. There was an observed difference in the average age at diagnosis with the mean age for the first 10 years being 56 years in comparison to the past 10 years, which was 61 years. Also, patients who received radioactive iodine were consistently younger than the group who did not receive RAI. The lifetime incidence of multiple primaries was about 50% in the entire group. The incidence remains similar in each period examined and in all the groups. However, there is an observed difference in the incidence of second primary in the RAI group after treatment compared with those who did not received RAI.
Conclusions: There was an increase in the incidence of thyroid cancer diagnosed over the 20-year period, and the overall incidence of multiple primaries during this time span remained consistent. However, the observed incidence of the second primary after the diagnoses of thyroid cancer was higher in the group who received RAI treatment.
New Developments in Chronic Lymphocytic Leukemia Treatment
Recently, Federal Practitioner talked with Sanjai Sharma, MD, about how signaling pathways in chronic lymphocytic leukemia (CLL) is critical to the development of therapeutic agents to treat this disease. Ibrutinib and idelalisib are therapeutic agents that block signaling pathways and, therefore, inhibit the growth of CLL cells.
For more information about CLL, read "Signaling Pathways and Novel Inhibitors in Chronic Lymphocytic Leukemia," in our August 2014 issue.
Dr. Sharma is a physician at the West Los Angeles VA Medical Center and associate professor in the Department of Medicine, Hematology/Oncology at UCLA, both in California.
Recently, Federal Practitioner talked with Sanjai Sharma, MD, about how signaling pathways in chronic lymphocytic leukemia (CLL) is critical to the development of therapeutic agents to treat this disease. Ibrutinib and idelalisib are therapeutic agents that block signaling pathways and, therefore, inhibit the growth of CLL cells.
For more information about CLL, read "Signaling Pathways and Novel Inhibitors in Chronic Lymphocytic Leukemia," in our August 2014 issue.
Dr. Sharma is a physician at the West Los Angeles VA Medical Center and associate professor in the Department of Medicine, Hematology/Oncology at UCLA, both in California.
Recently, Federal Practitioner talked with Sanjai Sharma, MD, about how signaling pathways in chronic lymphocytic leukemia (CLL) is critical to the development of therapeutic agents to treat this disease. Ibrutinib and idelalisib are therapeutic agents that block signaling pathways and, therefore, inhibit the growth of CLL cells.
For more information about CLL, read "Signaling Pathways and Novel Inhibitors in Chronic Lymphocytic Leukemia," in our August 2014 issue.
Dr. Sharma is a physician at the West Los Angeles VA Medical Center and associate professor in the Department of Medicine, Hematology/Oncology at UCLA, both in California.
Study explains BCR-ABL-independent imatinib resistance
A new study helps explain why some chronic myeloid leukemia (CML) patients develop resistance to imatinib despite the absence of BCR-ABL mutations.
Researchers discovered that a signaling pathway associated with cell division and growth acts as an alternative survival signal underlying imatinib resistance.
But blocking this pathway with an inhibitor known as trametinib can prevent resistance to imatinib and increase survival in mice.
The researchers recounted these discoveries in Science Translational Medicine.
Michael R. Green, MD, PhD, of the University of Massachusetts Medical School in Worcester, and his colleagues began this research with a large-scale RNA interference screen. This revealed a set of genes that promote imatinib sensitivity.
The team then set out to identify the regulatory pathways through which these genes promote imatinib sensitivity. They found that knocking down the genes in BCR-ABL+ cells results in sustained RAF/MEK/ERK signaling after treatment with imatinib.
Further investigation revealed it is PRKCH, which encodes the protein kinase C family member PKCη, that increases RAF/MEK/ERK signaling through phosphorylation and activation of CRAF.
Dr Green and his colleagues also found that PRKCH is upregulated in CML cell lines and patient samples that exhibit BCR-ABL-independent imatinib resistance. Experiments in mice revealed that PRKCH modulates the proliferation of BCR-ABL+ cells, CML progression, and imatinib sensitivity.
Furthermore, imatinib-resistant murine and human CML stem cells contained high levels of PRKCH. And experiments confirmed that high PRKCH expression contributed to the imatinib resistance observed in these cells.
Fortunately, the researchers discovered that combining imatinib with the MEK inhibitor trametinib can overcome BCR-ABL-independent imatinib resistance in CML cells. The combination also prolonged survival in mouse models of imatinib-resistant CML.
Dr Green and his colleagues said these results reveal a mechanism of BCR-ABL-independent imatinib resistance that can be targeted with therapy. And, as treatment with trametinib and imatinib kills CML stem cells but spares normal hematopoietic stem cells, it may be a feasible treatment option for CML patients.
A new study helps explain why some chronic myeloid leukemia (CML) patients develop resistance to imatinib despite the absence of BCR-ABL mutations.
Researchers discovered that a signaling pathway associated with cell division and growth acts as an alternative survival signal underlying imatinib resistance.
But blocking this pathway with an inhibitor known as trametinib can prevent resistance to imatinib and increase survival in mice.
The researchers recounted these discoveries in Science Translational Medicine.
Michael R. Green, MD, PhD, of the University of Massachusetts Medical School in Worcester, and his colleagues began this research with a large-scale RNA interference screen. This revealed a set of genes that promote imatinib sensitivity.
The team then set out to identify the regulatory pathways through which these genes promote imatinib sensitivity. They found that knocking down the genes in BCR-ABL+ cells results in sustained RAF/MEK/ERK signaling after treatment with imatinib.
Further investigation revealed it is PRKCH, which encodes the protein kinase C family member PKCη, that increases RAF/MEK/ERK signaling through phosphorylation and activation of CRAF.
Dr Green and his colleagues also found that PRKCH is upregulated in CML cell lines and patient samples that exhibit BCR-ABL-independent imatinib resistance. Experiments in mice revealed that PRKCH modulates the proliferation of BCR-ABL+ cells, CML progression, and imatinib sensitivity.
Furthermore, imatinib-resistant murine and human CML stem cells contained high levels of PRKCH. And experiments confirmed that high PRKCH expression contributed to the imatinib resistance observed in these cells.
Fortunately, the researchers discovered that combining imatinib with the MEK inhibitor trametinib can overcome BCR-ABL-independent imatinib resistance in CML cells. The combination also prolonged survival in mouse models of imatinib-resistant CML.
Dr Green and his colleagues said these results reveal a mechanism of BCR-ABL-independent imatinib resistance that can be targeted with therapy. And, as treatment with trametinib and imatinib kills CML stem cells but spares normal hematopoietic stem cells, it may be a feasible treatment option for CML patients.
A new study helps explain why some chronic myeloid leukemia (CML) patients develop resistance to imatinib despite the absence of BCR-ABL mutations.
Researchers discovered that a signaling pathway associated with cell division and growth acts as an alternative survival signal underlying imatinib resistance.
But blocking this pathway with an inhibitor known as trametinib can prevent resistance to imatinib and increase survival in mice.
The researchers recounted these discoveries in Science Translational Medicine.
Michael R. Green, MD, PhD, of the University of Massachusetts Medical School in Worcester, and his colleagues began this research with a large-scale RNA interference screen. This revealed a set of genes that promote imatinib sensitivity.
The team then set out to identify the regulatory pathways through which these genes promote imatinib sensitivity. They found that knocking down the genes in BCR-ABL+ cells results in sustained RAF/MEK/ERK signaling after treatment with imatinib.
Further investigation revealed it is PRKCH, which encodes the protein kinase C family member PKCη, that increases RAF/MEK/ERK signaling through phosphorylation and activation of CRAF.
Dr Green and his colleagues also found that PRKCH is upregulated in CML cell lines and patient samples that exhibit BCR-ABL-independent imatinib resistance. Experiments in mice revealed that PRKCH modulates the proliferation of BCR-ABL+ cells, CML progression, and imatinib sensitivity.
Furthermore, imatinib-resistant murine and human CML stem cells contained high levels of PRKCH. And experiments confirmed that high PRKCH expression contributed to the imatinib resistance observed in these cells.
Fortunately, the researchers discovered that combining imatinib with the MEK inhibitor trametinib can overcome BCR-ABL-independent imatinib resistance in CML cells. The combination also prolonged survival in mouse models of imatinib-resistant CML.
Dr Green and his colleagues said these results reveal a mechanism of BCR-ABL-independent imatinib resistance that can be targeted with therapy. And, as treatment with trametinib and imatinib kills CML stem cells but spares normal hematopoietic stem cells, it may be a feasible treatment option for CML patients.