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Bone Marrow Stimulation with G-CSF


Medical editor Gunnar B. Kristensen MD
Gynecologist
Oslo University Hospital
Norway

Harald Holte MD
Oncologist
Oslo University Hospital
Norway

Dag Torfoss MD
Specialist in Infectuous Medicine
Oslo University Hospital
Norway

General

Bone marrow stimulation with G-CSF (Neupogen®, Granocyte®) is only recommended for febrile neutropenia which does not respond to antibiotic treatment, severe neutropenia (granulocytes < 0.5 x 109 /L for more than 1 week), and in cases where it is necessary to administer curative treatment with sufficient dosage intensity.

Indications 

  • To maintain dosage intensity for curative treatment; when a reduction in dosage will significantly reduce the chance of cure.
  • As prophylaxis for treatments associated with a high risk for febrile neutropenia (> 40 %)
  • Febrile neutropenia that does not respond quickly to antibiotic treatment
  • Long-lasting neutropenia

Goal

  • Maintain treatment intensity

Preparation

The patient should be adequately informed about the treatment.


Implementation

  • The dosage of Neupogen® is 5 µg/kg daily. The treatment is initiated, at the earliest, 48 hours after the treatment is completed. The treatment continues for 10 days.
  • The dosage of Neulasta® is 6 mg subcutaneously administered 24 hours after chemotherapy is completed. The neutrophil cells are counted on day 15.
  • The subsequent course is started on day 21, if the neutrophil count is 0.5 or higher, and the patient has not had febrile neutropenia.
  • It is important not to postpone the treatment if the neutrophil count is 0.5 or higher. The neutrophil count will compulsory decline after ending Neupogen® stimulation. Low values at the start of treatment should not be alarming if the values during hospitalization have been high enough to avoid febrile neutropenia.
  • Stimulation late in the cycle should only be performed for long-lasting, severe neutropenia. At least 48 hours should pass after completed stimulation treatment before the next chemotherapy course  is started. In these cases, it is always important to check that the doses are correct and to recalculate GFR etc. Continuation of chemotherapy will either require a drastic dosage reduction or secondary prophylaxis with G-CSF.

 


Follow-up Care

It is of utmost importance that the patient is informed of the risk of infections associated with a low neutrophil count.

Patients at risk for developing  very low values, must be  informed to take their temperature if they feel unwell or  febrile. In case of  a temperature above 38 °C they should contact their doctor immediately.


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