Abstract PD12-01: Evaluation of sleep problems and their association with febrile neutropenia, leucopenia and infections in women receiving adjuvant chemotherapy for breast cancer in the Canadian Cancer Trials Group MA.21 trial

Author(s):  
Audreylie Lemelin ◽  
Josée Savard ◽  
Michelle Chen ◽  
Margot Burnell ◽  
Mark N Levine ◽  
...  
2005 ◽  
Vol 23 (33) ◽  
pp. 8340-8347 ◽  
Author(s):  
Harold J. Burstein ◽  
Leroy M. Parker ◽  
Aparna Keshaviah ◽  
Jennifer Doherty ◽  
Ann H. Partridge ◽  
...  

Purpose Dose-dense, every-2-week adjuvant chemotherapy using doxorubicin/cyclophosphamide (AC; 60/600 mg/m2 every 2 weeks × four cycles) followed by paclitaxel (175 mg/m2 every 2 weeks × four cycles), requiring filgrastim on days 3 through 10 of each cycle has been shown to improve survival compared with every-3-week treatment schedules but is associated with greater risk of RBC transfusion (13%). The role of long-acting hematopoietic growth factors in facilitating every-2-week chemotherapy and minimizing hematologic toxicity has not been established. Patients and Methods Women with stage I to III breast cancer received dose-dense AC → paclitaxel as neoadjuvant or adjuvant chemotherapy. Patients received pegfilgrastim 6 mg subcutaneous (SQ) on day 2 of each cycle. Darbepoetin alfa was initiated at 200 μg SQ every 2 weeks for hemoglobin ≤ 12 g/dL, and administered thereafter, according to a preplanned algorithm. The primary end points were to evaluate the percentage of patients with febrile neutropenia and the percentage of patients requiring RBC transfusion. Results Among 135 women treated on this single arm study, there were two cases of febrile neutropenia (incidence 1.5%). No patients received RBC transfusion. Darbepoetin alfa therapy was initiated in 92% of patients. The modest leukocytosis seen during paclitaxel cycles was attributable, in part, to corticosteroid premedication. Other toxicity and dose-delivery were similar to dose-dense AC → paclitaxel in Cancer and Leukemia Group B 9741. Conclusion Pegfilgrastim and darbepoetin alfa are effective and safe in facilitating every-2-week AC → paclitaxel, minimizing rates of febrile neutropenia and RBC transfusion.


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 534-534 ◽  
Author(s):  
H. Earl ◽  
L. Hiller ◽  
J. A. Dunn ◽  
S. Bathers ◽  
R. J. Grieve ◽  
...  

534 Background: NEAT and the SCTBG BR9601 trial address the role of Epirubicin (E) as an adjunct to CMF in adjuvant chemotherapy for women with early breast cancer (EBC). Methods: NEAT compared E (100mg/m2 x4cycles) followed by classical (c)CMF (x4cycles) with cCMF (x6cycles); BR9601 compared E (100mg/m2 × 4cycles) followed by iv dose modified CMF q3w (750:50:600 ×4cycles) with iv CMF (x8cycles). Eligibility was completely excised EBC, requiring adjuvant chemotherapy, and start of treatment <10 wks from surgery. Primary outcome measures were relapse-free-survival (RFS) and overall survival (OS). A joint efficacy analysis of NEAT (n=2,021) and BR9601 (n=370) triggered by planned 5-year median follow-up (FU) and estimated 800 RFS events and 600 deaths has 85% power to detect 5% two-sided differences. Results: In 2,391 eligible patients, characteristics were balanced across treatments: 72% node +ve; 59% <50 years old; 47% pre-menopausal; 58% tumours grade 3; 55% >2cms; 32% ER-ve, 50% ER+ve (18% NA). At a median FU of 6.2 yrs, 710 relapses or deaths without relapse and 570 deaths are observed. Despite lower than anticipated event rates in the control arm, these updated results confirm a highly significant benefit in favour of ECMF for both RFS (HR 0.75 (95%CI 0.64–0.87) p=0.0002) and OS (HR 0.74 (0.62–0.87) p=0.0004), independent of trial and prognostic factors. In 1458 NEAT patients (in whom data are available), 68% were to receive tamoxifen; chemotherapy scheduling data is available for 843, of whom 46% were declared concurrent and 54% sequential. In a non-pre-planned retrospective analysis, sequential tamoxifen shows a trend for advantage on RFS (HR 0.78 (0.59–1.02) p=0.06). We have amenorrhoea data on 598 NEAT and BR9601 pre-menopausal women, of whom 72% became amenorrhoeic by the end of chemotherapy. In this instance, developing amenorrhoea showed no advantage for RFS (HR 0.90 (0.65–1.24) or OS (HR 0.99 (0.68–1.44)). Conclusions: This updated definitive analysis adds to the Overview in respect of an anthracycline advantage and confirms ECMF as an established and effective standard adjuvant therapy for EBC. [Table: see text]


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 604-604
Author(s):  
H. Abe ◽  
T. Umeda ◽  
Y. Kawai ◽  
M. Tanaka ◽  
T. Shimizu ◽  
...  

604 Background: As adjuvant chemotherapy for breast cancer, the addition of docetaxel to regimens containing anthracyline has been shown to be effective. However, tolerance and safety associated with the administration order of the two drugs have not been evaluated. Methods: Breast cancer patients with node-positive or high-risk patients with node-negative were eligible. The treatment completion rate and toxicity were evaluated in 2 arms who underwent a total of 6 courses of the following regimens: Arm A: 3 courses of fluorouracil 500 mg/m2, epirubicin 100 mg/m2 and cyclophosphamide 500 mg/m2 (FEC100: q3w) followed by 3 courses of docetaxel (DOC100: 100 mg/m2, q3w); and Arm B: 3 courses of DOC100 (q3w) followed by 3 courses of FEC100 (q3w). Results: June 2006 to April 2008, 42 patients were registered. To the present, analysis has been completed in 21 patients in arm A and 21 in arm B. The mean age of patients was 49.1 years and 53.8 years, respectively. In arm A, the stage of cancer was 1 in 4 patients, 2a in 10, and 2b in 7, in arm B, the stage of cancer was 1 in 3 patients, 2a in 9, and 2b in 9. The adjuvant chemotherapy completion rate was 100 % for arm A and 95.2 % for arm B. The relative dose intensity (RDI) was 94.2 % for FEC100 and 97.8 % for DOC100 in arm A, and 98.9 % for DOC100 and 95.2 % for FEC100 in arm B. In arm A, grade 3 or higher hematological toxicity was observed in 9 patients, and febrile neutropenia developed in 3 patients with FEC100. In arm B, grade 3 or higher hematological toxicity was observed in 7 patients, but febrile neutropenia was not noted in any patients. Grade 3 or higher non-hematological toxicity was observed with FEC100 in 2 patients each in the two arms. Grade 1 or 2 edema developed in 11 patients with DOC100 in the two arms. Conclusions: In both arm A and B, adverse events associated with FEC100 were frequently observed but spontaneously recovered, or adequate management was possible by supportive therapy. Adverse events associated with DOC100 were mild. The regimens in both arms A and B were safe regarding adjuvant chemotherapy for early stage breast cancer. However, DOC100 followed by FEC100 may be more tolerable and effective. No significant financial relationships to disclose.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 6107-6107 ◽  
Author(s):  
D. C. Dale ◽  
L. E. Cosler ◽  
D. A. Wolff ◽  
E. Culakova ◽  
M. S. Poniewierski ◽  
...  

6107 Background: Although recent economic analyses of prophylactic G-CSF provide cost saving febrile neutropenia (FN) risk estimates of approximately 20%, many regimens have reported rates <20%. A prospective nationwide cohort study was undertaken to develop risk models for neutropenic complications (NC) including severe and febrile neutropenia in patients receiving cancer chemotherapy (Lyman ASCO 2005). A cost-effectiveness model is presented to evaluate the economic impact of G-CSF prophylaxis based on the model. Methods: Data on 974 consecutive breast cancer patients receiving adjuvant chemotherapy at 115 randomly selected practice sites were analyzed. The clinical and cost impact of G-CSF prophylaxis in high-risk patients based on the model was compared with: 1) no G-CSF; 2) primary prophylaxis; and 3) secondary prophylaxis. Pegfilgrastim costs were based on Medicare pricing while hospitalization costs and mortality on national hospitalization data. Results: Independent predictors of first cycle NC included: type and schedule of chemotherapy, diabetes, elevated bilirubin, planned RDI >85%, low glomerular filtration rate and low neutrophil count. Prophylactic G-CSF was associated with a decreased risk. Model R2=0.327 and c-statistic=0.80 [95% CI: 0.78–0.83; P<.001]. At a baseline FN risk of 8.4% per cycle, the expected costs over four cycles of chemotherapy were: no pegfilgrastim: $1,285; primary prophylaxis: $2,573; secondary prophylaxis: $2,040 and model-targeted G-CSF: $1,527. Expected cost varied with FN risk and model performance. Primary prophylaxis was associated with lower cost than no prophylaxis at FN risk >18%, while the model outperformed both strategies at an FN risk >10%. At a baseline cycle risk of FN of 8.4%, model-guided G-CSF was associated with an expected cost of $44,980 per life saved. Cost savings increased as model discrimination increased. The model was consistently associated with lower cost compared to secondary prophylaxis. Conclusions: A risk model for NC has been developed in breast cancer patients receiving adjuvant chemotherapy. Use of the model to guide G-CSF support appears to be cost-effective at an overall FN risk of 10%. [Table: see text]


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