Abstract
Objective
Pegfilgrastim is indicated to decrease the incidence of febrile neutropenia in patients
with gynecologic malignancies who are receiving myelosuppressive chemotherapy. We
sought to compare the safety and efficacy of day 1 pegfilgrastim administration to
day 2 administration in patients with gynecologic malignancies.
Methods
We retrospectively evaluated patients receiving both chemotherapy and pegfilgrastim
from June 1, 2006 to August 31, 2007 for a gynecologic malignancy. Abstracted data
included patient demographics, pathology, blood counts, toxicity, and chemotherapy.
After administration of chemotherapy, all patients either received 6 mg of pegfilgrastim
subcutaneously on day 1 or day 2.
Results
1226 administrations of pegfilgrastim in 230 patients were identified. 490 administrations
of pegfilgrastim were given on day 1 compared to 736 on day 2. 70% of patients had
ovarian cancer with a median age of 64 years (range 15–88). 79% of patients had stage
III, IV, or recurrent disease and 67% were undergoing primary chemotherapy. The most
common chemotherapy was docetaxel/carboplatin (53%) followed by paclitaxel/carboplatin
(19%). The mean absolute neutrophil count (ANC) nadir was 4810/mm3 in the day 1 cohort compared to 4212/mm3 in the day 2 cohort (p=.004). The incidence of Grade 3/4 neutropenia was similar in both groups (4.9% in
day 1 vs. 5.7% in day 2; p=.63). Grade 3/4 febrile neutropenia was uncommon in both cohorts (0 episodes vs. 3
episodes; p=.41). Treatment delays were similar in both cohorts (5.9% vs. 7.5%; p=.35). Dose modifications were also similar in both cohorts (2.8% vs. 5.3%; p=.06).
Conclusion
Day 1 administration of pegfilgrastim is as effective as day 2 administration in the
prevention of neutropenia in patients with gynecologic malignancies. Treatment delays
and dose modifications were not increased after day 1 administration of pegfilgrastim.
Administering pegfilgrastim on day 1 appears to be safe, effective, and convenient
in selected patients receiving myelopsuppressive chemotherapy for gynecologic malignancies.
Keywords
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Article info
Publication history
Received:
July 24,
2008
Identification
Copyright
© 2008 Elsevier Inc. Published by Elsevier Inc. All rights reserved.