Enzalutamide Viatris
Authorised
This medicine is authorised for use in the European Union
enzalutamide
Medicine
Human
Authorised
- Application under evaluation
- CHMP opinion
- European Commission decision
Overview
Enzalutamide Viatris is a cancer medicine used to treat men with prostate cancer. It can be used:
- together with hormone therapy (treatment to lower production of testosterone) when the cancer is metastatic (has spread to other parts of the body) and is hormone-sensitive (depending on a hormone, such as testosterone, to grow);
- for metastatic cancer that is castration-resistant (worsens despite treatment to lower production of testosterone or after surgical removal of the testes) when either:
- treatment with docetaxel (another cancer medicine) has not worked or no longer works, or
- hormone therapy has not worked, and the patient has either no symptoms or mild symptoms and does not yet require chemotherapy (another type of cancer treatment);
- for castration-resistant prostate cancer that is not metastatic but is at high risk of doing so;
- on its own or together with hormone therapy, for hormone-sensitive prostate cancer that is not metastatic, if there are rapidly rising levels of prostate-specific antigen (PSA; a protein made by the prostate gland) indicating that the cancer may have returned, in men who cannot receive salvage radiotherapy (radiation treatment given after the cancer has not responded to other treatments).
Enzalutamide Viatris contains the active substance enzalutamide and is a ‘generic medicine’. This means that Enzalutamide Viatris contains the same active substance and works in the same way as a ‘reference medicine’ already authorised in the EU. The reference medicine for Enzalutamide Viatris is Xtandi. For more information on generic medicines, see the question-and-answer document here.
Enzalutamide Viatris can only be obtained with a prescription and treatment should be started and monitored by a doctor who has experience in treating prostate cancer.
Enzalutamide Viatris is available as tablets, taken once daily at about the same time each day. The doctor may reduce the dose or interrupt treatment if a patient gets certain side effects.
For more information about using Enzalutamide Viatris, see the package leaflet or contact your doctor or pharmacist.
The active substance in Enzalutamide Viatris, enzalutamide, works by blocking the action of the hormone testosterone and other hormones known as androgens. Enzalutamide does this by blocking the receptors (targets) to which these hormones attach. Because prostate cancer needs testosterone and other androgens to survive and grow, by blocking the effects of these hormones, enzalutamide slows down the growth of the prostate cancer.
Studies on the benefits and risks of the active substance in the authorised use have already been carried out with the reference medicine, Xtandi, and do not need to be repeated for Enzalutamide Viatris.
As for every medicine, the company provided studies on the quality of Enzalutamide Viatris. The company also carried out studies that showed that it is ‘bioequivalent’ to the reference medicine. Two medicines are bioequivalent when they produce the same levels of the active substance in the body and are therefore expected to have the same effect.
Because Enzalutamide Viatris is a generic medicine and is bioequivalent to the reference medicine, its benefits and risks are taken as being the same as the reference medicine’s.
The European Medicines Agency concluded that, in accordance with EU requirements, Enzalutamide Viatris has been shown to have comparable quality and to be bioequivalent to Xtandi. Therefore, the Agency’s view was that, as for Xtandi the benefits of Enzalutamide Viatris outweigh the identified risks 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 Enzalutamide Viatris have been included in the summary of product characteristics and the package leaflet. Any additional measures in place for Xtandi also apply to Enzalutamide Viatris where appropriate.
As for all medicines, data on the use of Enzalutamide Viatris are continuously monitored. Suspected side effects reported with Enzalutamide Viatris are carefully evaluated and any necessary action taken to protect patients.
Enzalutamide Viatris received a marketing authorisation valid throughout the EU on 22 August 2024.
Product information
Latest procedure affecting product information:VR/0000289520
28/08/2025
This medicine’s product information is available in all official EU languages.
Select 'available languages' to access the language you need.
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).
Product details
- Name of medicine
- Enzalutamide Viatris
- Active substance
- enzalutamide
- International non-proprietary name (INN) or common name
- enzalutamide
- Therapeutic area (MeSH)
- Prostatic Neoplasms
- Anatomical therapeutic chemical (ATC) code
- L02BB04
Pharmacotherapeutic group
Endocrine therapyTherapeutic indication
Enzalutamide Viatris is indicated:
• as monotherapy or in combination with androgen deprivation therapy for the treatment of adult men with high-risk biochemical recurrent (BCR) non-metastatic hormone-sensitive prostate cancer (nmHSPC) who are unsuitable for salvage-radiotherapy (see section 5.1);
• in combination with androgen deprivation therapy for the treatment of adult men with metastatic hormone-sensitive prostate cancer (mHSPC) (see section 5.1);
• for the treatment of adult men with high-risk non-metastatic castration-resistant prostate cancer (CRPC) (see section 5.1);
• for the treatment of adult men with metastatic CRPC who are asymptomatic or mildly symptomatic after failure of androgen deprivation therapy in whom chemotherapy is not yet clinically indicated (see section 5.1);
• for the treatment of adult men with metastatic CRPC whose disease has progressed on or after docetaxel therapy.
News on Enzalutamide Viatris
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