Overview

Ziextenzo is a medicine used in cancer patients to help with neutropenia (low levels of neutrophils, a type of white blood cell), which is a common side effect of cancer treatment and can leave patients vulnerable to infections.

It is given specifically to reduce the duration of neutropenia and prevent febrile neutropenia (when neutropenia is accompanied by fever).

Ziextenzo is not intended for use in patients with the blood cancer chronic myeloid leukaemia or with myelodysplastic syndromes (conditions in which large numbers of abnormal blood cells are produced, which can develop into leukaemia).

Ziextenzo is a ‘biosimilar medicine’. This means that Ziextenzo is highly similar to another biological medicine (the ‘reference medicine’) that is already authorised in the EU. The reference medicine for Ziextenzo is Neulasta. 

Ziextenzo can only be obtained with a prescription and treatment should be started and supervised by a doctor who has experience in the treatment of cancer or blood disorders. It is available as a prefilled syringe containing a solution for injection under the skin. Ziextenzo is given as a single dose of 6 mg injected under the skin at least 24 hours after the end of each cycle of chemotherapy (treatment with cancer medicines). Patients can inject themselves if they have been trained appropriately.

For more information about using Ziextenzo, see the package leaflet or contact your doctor or pharmacist.

The active substance in Ziextenzo, pegfilgrastim, is a form of filgrastim, which is very similar to a human protein called granulocyte-colony-stimulating factor (G-CSF). Filgrastim works by encouraging the bone marrow to produce more white blood cells, increasing white blood cell counts and so treating neutropenia.

Filgrastim has been available in other medicines in the European Union (EU) for a number of years. In Ziextenzo, filgrastim has been ‘pegylated’ (attached to a chemical called polyethylene glycol). This slows down the removal of filgrastim from the body, allowing the medicine to be given less often.

Laboratory studies comparing Ziextenzo with Neulasta have shown that the active substance in Ziextenzo is highly similar to that in Neulasta in terms of structure, purity and biological activity. Studies have also shown that giving Ziextenzo produces similar levels of the active substance in the body to giving Neulasta.

In addition, two studies involving 624 patients who had chemotherapy before or after surgery for breast cancer showed that Ziextenzo was as effective as Neulasta in reducing the duration of neutropenia. Neutropenia lasted 1 day on average with both medicines.

Because Ziextenzo is a biosimilar medicine, the studies on effectiveness and safety of pegfilgrastim carried out with Neulasta do not all need to be repeated for Ziextenzo.

The safety of Ziextenzo has been evaluated, and on the basis of all the studies carried out the side effects of the medicine are considered to be comparable to those of the reference medicine Neulasta. The most common side effect with Ziextenzo (which may affect more than 1 in 10 people) is pain in the bones. Pain in muscles is also common. For the full list of side effects and restrictions with Ziextenzo, see the package leaflet.

The European Medicines Agency decided that, in accordance with EU requirements for biosimilar medicines, Ziextenzo has a highly similar structure, purity and biological activity to Neulasta and is distributed in the body in the same way. In addition, studies in breast cancer patients undergoing chemotherapy have shown that the effectiveness of Ziextenzo is equivalent to that of Neulasta in reducing the duration of neutropenia.

All these data were considered sufficient to conclude that Ziextenzo will behave in the same way as Neulasta in terms of effectiveness and safety in its authorised uses. Therefore, the Agency’s view was that, as for Neulasta, the benefit of Ziextenzo outweighs the identified risk and it can be authorised for use in the EU.

Recommendations and precautions to be followed by healthcare professionals and patients for the safe and effective use of Ziextenzo have been included in the summary of product characteristics and the package leaflet.

As for all medicines, data on the use of Ziextenzo are continuously monitored. Side effects reported with Ziextenzo are carefully evaluated and any necessary action taken to protect patients.

Ziextenzo received a marketing authorisation valid throughout the EU on 22 November 2018.

Ziextenzo : EPAR - Medicine overview

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Ziextenzo : EPAR - Risk-management-plan summary

Product information

Ziextenzo : EPAR - Product Information

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Latest procedure affecting product information: N/0031

30/11/2023

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Product information documents contain:

  • summary of product characteristics (annex I);
  • manufacturing authorisation holder responsible for batch release (annex IIA);
  • conditions of the marketing authorisation (annex IIB);
  • labelling (annex IIIA);
  • package leaflet (annex IIIB).

Ziextenzo : EPAR - All Authorised presentations

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Product details

Name of medicine
Ziextenzo
Active substance
pegfilgrastim
International non-proprietary name (INN) or common name
pegfilgrastim
Therapeutic area (MeSH)
Neutropenia
Anatomical therapeutic chemical (ATC) code
L03AA13

Pharmacotherapeutic group

Immunostimulants

Therapeutic indication

Reduction in the duration of neutropenia and the incidence of febrile neutropenia in adult patients treated with cytotoxic chemotherapy for malignancy (with the exception of chronic myeloid leukaemia and myelodysplastic syndromes).

Authorisation details

EMA product number
EMEA/H/C/004802

Biosimilar

This is a biosimilar medicine, which is a biological medicine highly similar to another already approved biological medicine called the ‘reference medicine’. For more information, see Biosimilar medicines.

Marketing authorisation holder
Sandoz GmbH

Biochemiestrasse 10
6250 Kundl
Austria

Opinion adopted
20/09/2018
Marketing authorisation issued
22/11/2018
Revision
9

Assessment history

Ziextenzo : EPAR - Procedural steps taken and scientific information after the authorisation

Ziextenzo-H-C-PSUSA-00002326-201901 : EPAR - Scientific conclusions and grounds for the variation to the terms of the marketing authorisation

Ziextenzo : EPAR - Public assessment report

CHMP summary of positive opinion for Ziextenzo

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