Effect of granulocyte-macrophage colony-stimulating factor (GM-CSF) on hematologic toxicity induced by high-dose chemotherapy in patients with metastatic breast cancer. Randomized double-blind prospective trial to evaluate the effects of sargramostim versus placebo in a moderate-dose fluorouracil, doxorubicin, and cyclophosphamide adjuvant chemotherapy program for stage II and III breast cancer. Addition of either lonidamine or granulocyte colony-stimulating factor does not improve survival in early breast cancer patients treated with high-dose epirubicin and cyclophosphamide. XM02 is superior to placebo and equivalent to Neupogen in reducing the duration of severe neutropenia and the incidence of febrile neutropenia in cycle 1 in breast cancer patients receiving docetaxel/doxorubicin chemotherapy. Pegfilgrastim supports delivery of FEC-100 chemotherapy in elderly patients with high risk breast cancer: a randomized phase 2 trial. First and subsequent cycle use of pegfilgrastim prevents febrile neutropenia in patients with breast cancer: a multicenter, double-blind, placebo-controlled phase III study. Prophylactic filgrastim (G-CSF) during mitomycin-C, mitoxantrone, and methotrexate (MMM) treatment for metastatic breast cancer. A randomized study. Lenograstim prevents morbidity from intensive induction chemotherapy in the treatment of inflammatory breast cancer.
Twenty patients with recurrent metastatic breast cancer treated with high-dose myelosuppressive antineoplastic drugs (cyclophosphamide 2.5 g/m2 or epirubicin 130 mg/m2, both every 3 weeks) as first or second line chemotherapy were randomized in a prospective study to GM-CSF 5 micrograms/kg per day (n = 11) or control (n = 9). Significant reduction in granulocyte nadir duration (2 days with GM-CSF vs. 7 days) and severity (0.4 x 10(9)/l with GM-CSF vs. 0.2 x 10(9)/l) was found. No difference in frequency of neutropenic fever or antibiotic use could be observed. Even though the patients treated with GM-CSF at random were more heavily pretreated with chemotherapy, there was a surprisingly higher response rate in these patients as compared to the control-arm, namely 64% vs. 28.5%. However, this difference was not statistically significant. No severe side-effects were seen, but presumably due to GM-CSF one patient developed an allergic type 1 reaction and one patient a possible pericardial exudation. Both were fully reversible after cessation of the cytokine treatment. To determine the effects of sargramostim (recombinant human granulocyte-macrophage colony-stimulating factor [rhu GM-CSF]) on the incidence, duration, and complications of myelosuppression after moderate-dose fluorouracil, doxorubicin, cyclophosphamide (FAC) adjuvant chemotherapy in patients with node-positive breast cancer.
                In this randomized, double-blind, placebo-controlled study, 142 women with stage II and III breast cancer were to receive four 21-day cycles of chemotherapy that consisted of fluorouracil 600 mg/ m2 intravenously (IV), doxorubicin 60 mg/m2 IV, and cyclophosphamide 750 mg/m2 IV on day 1, followed by placebo or GM-CSF 250 micrograms/m2/d daily subcutaneously (SC) on days 3 through 15. All patients received prophylactic ciprofloxacin by mouth when the absolute neutrophil count (ANC) was less than 1,000/microL.
                Eighty-six percent of GM-CSF patients (n = 62) and 96% of placebo patients (n = 69) completed four assessable cycles of treatment on study. Overall, the median duration of severe neutropenia (ANC < 500/microL) was 2.8 days with GM-CSF and 6.8 days with placebo (P < .001); the duration of ANC less than 1,000/microL was 6.0 versus 9.1 days, respectively (P < .001). Hospitalizations for febrile neutropenia were uncommon in either group: GM-CSF, six; placebo, eight. The only other difference in hematologic toxicity was grade 3/4 thrombocytopenia observed with greater frequency in GM-CSF patients than placebo patients in cycles 3 and 4. GM-CSF increased mean the FAC dose-intensity among patients who completed two or more cycles (P < .001). GM-CSF was generally well tolerated and associated with more injection-site reactions, but less mucositis than placebo. There were no deaths on study.
                GM-CSF significantly enhanced ANC recovery after FAC chemotherapy; it decreased the incidence and duration of associated neutropenia and moderately increased the dose-intensity of adjuvant chemotherapy. Whether these effects will ultimately translate into improved long-term outcome remains to be determined. Lonidamine (LND) can enhance the activity of anthracyclines in patients with metastatic breast cancer. A multicenter, prospective, randomized trial was designed to determine whether the association of LND with high-dose epirubicin plus cyclophosphamide (EC) could improve disease-free survival (DFS) in patients with early breast cancer (BC) compared with EC alone. Granulocyte colony-stimulating factor (G-CSF) was added to maintain the EC dose-intensity.
                From October 1991 to April 1994, 506 patients with stage I/II BC were randomly assigned to four groups: (A) epirubicin 120 mg/m2 and cyclophosphamide 600 mg/m2 administered intravenously on day 1 every 21 days for four cycles (124 patients); (B) EC plus LND 450 mg/d administered orally (125 patients); (C) EC plus G-CSF administered subcutaneously (129 patients); (D) EC plus LND plus G-CSF (128 patients).
                Median follow-up was 55 months. Five-year DFS rate was similar for LND (B+D groups; 69.6%) versus non-LND arms (A+C groups; 70.3%) and G-CSF (C+D groups; 67.2%) versus non-G-CSF arms (A+B groups; 72.9%). Five-year overall survival (OS) was comparable in LND (79.1%) versus non-LND arms (81.3%) and in G-CSF (80.6%) versus non-G-CSF arms (79.6%). DFS and OS distributions in LND and G-CSF arms did not change according to tumor size, node, receptor, and menopausal status. G-CSF dramatically reduced hematologic toxicity without having a significant impact on dose-intensity (98.1% v 95.5% for C+D and A+B groups, respectively).
                EC is active and well tolerated in patients with early breast cancer. The addition of LND or G-CSF does not improve DFS or OS. Recombinant granulocyte colony-stimulating factors (G-CSFs) such as Filgrastim are used to treat chemotherapy-induced neutropenia. We investigated a new G-CSF, XM02, and compared it to Neupogen after myelotoxic chemotherapy in breast cancer (BC) patients.
                A total of 348 patients with BC receiving docetaxel/doxorubicin chemotherapy were randomised to treatment with daily injections (subcutaneous 5 microg/kg/day) for at least 5 days and a maximum of 14 days in each cycle of XM02 (n = 140), Neupogen (n = 136) or placebo (n = 72). The primary endpoint was the duration of severe neutropenia (DSN) in cycle 1.
                The mean DSN in cycle 1 was 1.1, 1.1, and 3.9 days in the XM02, Neupogen, and placebo group, respectively. Superiority of XM02 over placebo and equivalence of XM02 with Neupogen could be demonstrated. Toxicities were similar between XM02 and Neupogen.
                XM02 was superior to placebo and equivalent to Neupogen in reducing DSN after myelotoxic chemotherapy. This randomized phase 2 study explored the feasibility of delivering four to six cycles of the dose-intensified regimen FEC-100 (5-fluorouracil, epirubicin, and cyclophosphamide) to elderly patients with stage II-III breast cancer, using pegfilgrastim for neutrophil support. Sixty patients aged 65-77 years received single 6mg doses of pegfilgrastim on day 2 of FEC-100, either as primary prophylaxis (all cycles: PP), or as secondary prophylaxis (all cycles following a neutropenic event: SP). Neutropenic events (a composite endpoint that included grade 3 neutropenia+fever, grade 4 neutropenia, infectious complication requiring systemic anti-infectives and chemotherapy dose delay/reduction) occurred in 24/30 (80%) of the PP and 21/29 (72%) of the SP group in the first cycle. Most patients received all chemotherapy cycles at full dose on schedule (26/30 [87%] PP; 20/29 [69%] SP). These data indicate that delivery of FEC-100 is feasible with pegfilgrastim support in elderly breast cancer patients. We evaluated the efficacy of pegfilgrastim to reduce the incidence of febrile neutropenia associated with docetaxel in breast cancer patients.
                Patients were randomly assigned to either placebo or pegfilgrastim 6 mg subcutaneously on day 2 of each 21-day chemotherapy cycle of 100 mg/m(2) docetaxel. The primary end point was the percentage of patients developing febrile neutropenia (defined as body temperature >/= 38.2 degrees C and neutrophil count < 0.5 x 10(9)/L on the same day of the fever or the day after). Secondary end points were incidence of hospitalizations associated with a diagnosis of febrile neutropenia, intravenous (IV) anti-infectives required for febrile neutropenia, and the ability to maintain planned chemotherapy dose on time. Patients with febrile neutropenia were converted to open-label pegfilgrastim in subsequent cycles.
                Nine hundred twenty-eight patients received placebo (n = 465) or pegfilgrastim (n = 463). Patients receiving pegfilgrastim, compared with patients receiving placebo, had a lower incidence of febrile neutropenia (1% v 17%, respectively; P < .001), febrile neutropenia-related hospitalization (1% v 14%, respectively; P < .001), and use of IV anti-infectives (2% v 10%, respectively; P < .001). The percentage of patients receiving the planned dose on time was similar between patients receiving pegfilgrastim and patients who initially received placebo (80% and 78%, respectively), as would be expected of the study design. Pegfilgrastim was generally well tolerated and safe, and the adverse events reported were typical of this patient population.
                First and subsequent cycle use of pegfilgrastim with a moderately myelosuppressive chemotherapy regimen markedly reduced febrile neutropenia, febrile neutropenia-related hospitalizations, and IV anti-infective use. Patients with metastatic breast cancer were randomly assigned to receive as second-line chemotherapy either MMM (mitomycin 8 mg/m2 day 1; mitoxantrone 8 mg/m2 days 1 and 22; methotrexate 35 mg/m2 days 1 and 22) alone or in combination with filgrastim (5 micrograms/kg s.c. days 4-17, 24-37). The courses were repeated every 42 days for a maximum of six courses. Thirty-one patients are evaluable for safety and efficacy. The 16 patients in the filgrastim arm received a total of 42 cycles compared with 34 cycles in the 15 control patients. Tumor responses were few in both patient groups (one partial response in the filgrastim group and two partial responses in control group). Nevertheless, a difference in survival was seen (filgrastim median 10.7 months, control median 6.5 months; p = 0.02 log rank). The treatment was well tolerated. Doses were reduced six times in the filgrastim arm and eleven times in the control arm. Grade IV neutropenia was seen in four patients in the filgrastim arm and in twelve patients in the control arm. The observed survival benefit needs to be confirmed in a larger patient group. To compare the efficacy and safety of recombinant human granulocyte colony-stimulating factor (rHuG-CSF) versus its inert vehicle in patients with unilateral nonmetastatic inflammatory breast cancer treated with fluorouracil, epirubicin, and cyclophosphamide high-dose (FEC-HD) neoadjuvant chemotherapy.
                One hundred twenty patients have been enrolled by nine French centers in this double-blind, parallel-group, vehicle-controlled study to compare at each cycle subcutaneous lenograstim (5 micrograms/kg/d) with placebo given from day 6 to day 15 after the induction chemotherapy (day 1 to day 4, fluorouracil 750 mg/m2 continuous intravenous [IV] infusion; day 2 to day 4, epirubicin 35 mg/m2 and cyclophosphamide 400 mg/m2 both IV push). Four cycles were planned every 3 weeks before locoregional treatment. Patients with febrile neutropenia remained blinded for the subsequent cycles.
                Lenograstim significantly reduced the duration of neutropenia at less than 0.5 x 10(9)/L and less than 1 x 10(9)/L to a median duration of 2 and 3 days, respectively, as compared with 5 and 7 days in the placebo group. This translated into a statistically significant reduced incidence of microbiologically documented infections, and a decreased need for rehospitalizations for infectious events and antibiotic use. Clinical objective tumor response rate observed after four cycles was 89.6% and 93%, respectively, in the placebo and treated groups. Mild transient bone and injection-site pain, myelemia, and hyperleukocytosis were the most frequently reported adverse events associated with lenograstim.
                Lenograstim is safe and effective to reduce morbidity associated with FEC-HD neoadjuvant chemotherapy in inflammatory breast cancer. Response rate is not affected.
In patients with breast cancer receiving chemotherapy, CSFs have shown evidence of beneﬁt in the prevention of FN. There is evidence, though less reliable, of a decrease of all-cause mortality during chemotherapy and a reduced need for hospital care. No reliable evidence was found for a reduction of infection-related mortality, a higher dose intensity of chemotherapy with CSFs or diminished rates of severe neutropenia and infections. The majority of adverse events reported from CSF use were bone pain and injection-site reactions but no conclusions could be drawn regarding late-term side effects.