From Wikipedia, the free encyclopedia

Clinical data
Trade namesLonquex
Other namesXM-22
AHFS/Drugs.comUK Drug Information
License data
Routes of
Subcutaneous injection
ATC code
Legal status
Legal status
  • UK: POM (Prescription only) [1]
  • EU: Rx-only
CAS Number
PubChem CID
Chemical and physical data
FormulaC866H1372N226O258S9 + PEG
Molar mass39 000 g·mol−1

Lipegfilgrastim, sold under the brand name Lonquex, is a medication used to reduce the duration of neutropenia and the incidence of febrile neutropenia in adults.[2] It is given by injection under the skin in the abdomen, upper arm or thigh.[2]

The most common side effects include nausea as well as bone and muscle pain.[2]

Lipegfilgrastim is similar to granulocyte colony stimulating factor (G‑CSF), a naturally occurring protein in the body that stimulates the production of white blood cells including neutrophils in the bone marrow.[2] Lipegfilgrastim acts in the same way as G‑CSF, increasing the production of neutrophils and thereby helping to reduce the duration of neutropenia and the occurrence of febrile neutropenia (a sign of infection) in people receiving chemotherapy.[2]

Lipegfilgrastim is a form of filgrastim.[2] In Lipegfilgrastim, the filgrastim has been 'pegylated' (attached to a chemical called polyethylene glycol).[2] This slows down the medicine's removal from the body and allows the medicine to be given less often.[2]

Lipegfilgrastim was authorized for medical use in the European Union in July 2013.[2]

Medical uses[edit]

Lipegfilgrastim is indicated for the reduction in the duration of neutropenia and the incidence of febrile neutropenia in adults treated with cytotoxic chemotherapy for malignancy (with the exception of chronic myeloid leukaemia and myelodysplastic syndromes).[2]

See also[edit]


  1. ^ "Lonquex - Summary of Product Characteristics (SmPC)". (emc). 3 September 2019. Retrieved 12 July 2020.
  2. ^ a b c d e f g h i j "Lonquex EPAR". European Medicines Agency. 17 September 2018. Retrieved 13 July 2020. Text was copied from this source which is © European Medicines Agency. Reproduction is authorized provided the source is acknowledged.

Further reading[edit]

External links[edit]