• Support Care Cancer · Jan 2016

    Randomized Controlled Trial Multicenter Study

    Incidence of bone pain in patients with breast cancer treated with lipegfilgrastim or pegfilgrastim: an integrated analysis from phase II and III studies.

    • I M Bondarenko, P Bias, and A Buchner.
    • Dnipropetrovsk State Medical Academy, City Clinical Hospital N 4, 31, Blizhnaya Str, Dnipropetrovsk, 49102, Ukraine. igor.bondarenko@rdp-ukraine.com.
    • Support Care Cancer. 2016 Jan 1; 24 (1): 267-273.

    PurposeLipegfilgrastim is a once-per-cycle, fixed-dose, glycoPEGylated recombinant granulocyte colony-stimulating factor (G-CSF) recently approved in Europe to reduce the duration of chemotherapy-induced neutropenia and incidence of febrile neutropenia in patients with cancer receiving chemotherapy. Bone pain-related (BPR) adverse events are commonly associated with G-CSF therapy. This post hoc analysis examined BPR treatment-emergent adverse events (TEAEs) in two comparative studies of lipegfilgrastim or pegfilgrastim in patients receiving chemotherapy.MethodsA post hoc analysis was conducted using integrated data from two double-blind randomized studies in patients with breast cancer receiving docetaxel and doxorubicin and treated prophylactically with subcutaneous lipegfilgrastim 6 mg or pegfilgrastim 6 mg once per cycle. BPR TEAEs were defined as arthralgia, back pain, bone pain, musculoskeletal chest pain, musculoskeletal discomfort, musculoskeletal pain, myalgia, neck pain, noncardiac chest pain, and pain in extremity. Relationship of BPR TEAEs to study treatment or chemotherapy was also reported by the investigators.ResultsThe analysis included 306 patients (lipegfilgrastim: n = 151; pegfilgrastim: n = 155). The proportion of patients experiencing BPR TEAEs was similar with lipegfilgrastim and pegfilgrastim (25.2 vs 21.9%, respectively), as was the proportion of patients experiencing BPR treatment-emergent adverse drug reactions (TEADRs) (18.5 vs 16.8%, respectively). No BPR TEADRs were serious, and none led to discontinuation.ConclusionsNonsevere BPR TEAEs and TEADRs were observed in patients with breast cancer receiving chemotherapy and G-CSF; rates of BPR events were similar between lipegfilgrastim and pegfilgrastim. The similar BPR safety profile of lipegfilgrastim and pegfilgrastim provides support for use in patients with breast cancer receiving chemotherapy.

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