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VPRIV 400 Units powder for solution for infusionPatient’s Le
2014-09-16 15:50:49 来源: 作者: 【 】 浏览:332次 评论:0

For doctors

 

What is it and how is it used?

VPRIV is a long-term enzyme replacement therapy (ERT) for patients with type 1 Gaucher disease

Gaucher disease is a genetic disorder caused by a missing or defective enzyme named glucocerebrosidase. When this enzyme is missing or does not work properly, a substance called glucocerebroside builds up inside cells in the body. The build-up of this material causes the signs and symptoms found in Gaucher disease.

VPRIV is designed to replace the missing or defective enzyme, glucocerebrosidase, in patients with Gaucher disease.

What do you have to consider before using it?

Do not use VPRIV

Take special care with VPRIV

Tell your doctor if you have previously experienced an infusion-related reaction or allergic reaction with other ERT for Gaucher disease.

Children
VPRIV should not be used in children under the age of 2 years.

Using other medicines
Please tell your doctor if you are taking or have recently taken any other medicines, including medicines obtained without a prescription.

Pregnancy and breast-feeding
Gaucher disease may become more active in a woman during pregnancy and for a few weeks after birth. Women with Gaucher disease who are considering pregnancy should talk with their doctor.

VPRIV has not been studied in pregnant women. Studies in animals do not show harmful effects from VPRIV. Caution should be exercised when using VPRIV in pregnancy.

VPRIV has not been studied in women who are breast-feeding and it is not known whether VPRIV appears in breast milk. However, VPRIV contains a protein that may be digested by the child. Cautious use of VPRIV during breast feeding is recommended.

Ask your doctor or pharmacist for advice before taking any medicine.

Driving and using machines
VPRIV has no or negligible influence on your ability to drive or use machines.

Important information about one of the ingredients of VPRIV
Each 200 Units vial of this medicine contains 6.07 mg sodium. Each 400 Units vial of this medicine contains 12.15 mg sodium. This should be taken into consideration by patients on a controlled sodium diet.

How is it used?

VPRIV is only to be used under appropriate medical supervision of a doctor who is knowledgeable in the treatment of Gaucher disease. VPRIV is given by a doctor or nurse by intravenous infusion.

Dose
The usual dose is 60 Units/kg given every other week.

If you are currently being treated for Gaucher disease with another ERT and your doctor wants to change you to VPRIV, you can initially receive VPRIV at the same dose and frequency you had been receiving the other ERT. In clinical studies, doses ranging from 15 Units/kg to 60 Units/kg have been used.

Use in children and adolescents
VPRIV may be given to children and adolescents (2 to ≤17 years of age) at the same dose and frequency as in adults.

Response to treatment
Your doctor will monitor your response to treatment and may change your dose (up or down) over time.

If you are tolerating your infusions well in the clinic, your doctor or nurse may administer your infusions at home.

Administration
VPRIV is supplied in a vial as a packed powder which is mixed with sterile water and further diluted in sodium chloride 9 mg/ml (0.9%) solution prior to intravenous infusion.

After preparation, your doctor or nurse will give VPRIV to you through a drip into a vein (by intravenous infusion) over a period of 60 minutes.

If you use more VPRIV than you should
If you feel ill whilst receiving the infusion, tell your doctor or nurse immediately.

If you forget to have VPRIV
If you have missed an infusion, please contact your doctor.

If you stop using VPRIV
Discuss changes in treatment with your doctor.
If you have any further questions on the use of this medicine, ask your doctor.

What are possible side effects?

Like all medicines, VPRIV can cause side effects, although not everybody gets them.

In studies with VPRIV, side effects were mainly seen while patients were being infused with the medicine or shortly after (infusion-related reactions). These side effects have included headache, dizziness, decreased blood pressure, increased blood pressure, nausea, tiredness, and fever/body temperature increased. If you experience any side effect like these, please tell your doctor immediately. The majority of these side effects were mild in intensity.

However a few patients experienced an allergic skin reaction such as severe rash or itching. A severe allergic reaction, with difficulty breathing, swelling of the face, lips, tongue or throat occured. If any of these happen tell your doctor immediately.

The frequency of possible side effects listed below is defined using the following convention Very common Common Uncommon Rare Very rare Not known affects more than 1 user in 10 affects 1 to 10 users in 100 affects 1 to 10 users in 1,000 affects 1 to 10 users in 10,000 affects less than 1 user in 10,000 frequency cannot be estimated from the available data.

In studies with VPRIV the following side effects were reported:

The very common side effects are:

The common side effects are:

If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor.

How should it be stored?

Keep out of the reach and sight of children.

Do not use VPRIV after the expiry date which is stated on the outer carton and vial after ‘EXP’. The expiry date refers to the last day of that month.

Store in the refrigerator (2ºC - 8ºC).
Do not freeze.
Keep the vial in the outer carton in order to protect from light.
Do not use if the solution is discoloured or if foreign particles are present.

Medicines should not be disposed of via waste water or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.

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For doctors

What is it?

Vpriv is a powder that is made up into a solution for infusion (a drip into a vein). It contains the active substance velaglucerase alfa.

What is it used for?

Vpriv is used for the long-term treatment of patients with Gaucher disease. Gaucher disease is a rare inherited disorder, in which people do not have enough of an enzyme called glucocerebrosidase, which normally breaks down a fat called glucocerebroside. Without the enzyme, glucocerebroside builds up in the body, typically in the liver, spleen and bone, which produces the symptoms of the disease: anaemia (low red blood cell counts), tiredness, easy bruising and a tendency to bleed, an enlarged spleen and liver, and bone pain and breaks.

Vpriv is used in patients who have type 1 Gaucher disease, the type that usually affects the liver, spleen and bones.

Because the number of patients with Gaucher disease is low, the disease is considered ‘rare’, and Vpriv was designated an ‘orphan medicine’ (a medicine used in rare diseases) on 9 June 2010.

The medicine can only be obtained with a prescription.

How is it used?

Vpriv treatment should be supervised by a doctor experienced in managing Gaucher disease.

Vpriv is given as a one-hour infusion once every two weeks. The dose can be adjusted according to each patient’s symptoms and response to treatment. The first three infusions are given in hospital, but subsequent infusions given at home administration can be considered in patients who tolerate the medicine well. Home infusions should be supervised by a healthcare professional.

How does it work?

Gaucher disease occurs because of the lack of an enzyme called glucocerebrosidase. The active substance in Vpriv, velaglucerase alfa, is a copy of this enzyme, which is produced by a method known as ‘recombinant DNA technology’: the enzyme is made by activating a gene in a human cell that makes it able to produce this enzyme. Velaglucerase alfa replaces the missing enzyme in Gaucher disease, helping to break down glucocerebroside and stopping it building up in the body.

How has it been studied?

The effects of Vpriv were first tested in experimental models before being studied in humans.

In one main study involving 35 patients (including 9 children) with type 1 Gaucher disease, Vpriv was compared with imiglucerase (another medicine for Gaucher disease). The main measure of effectiveness was the improvement in anaemia, one of the symptoms of the disease, after 41 weeks. The study also looked at control of other signs of the disease such as the increase in the number of platelets in the blood, and the reduction of the size of the liver and spleen.

What benefits has it shown during the studies?

Vpriv was as effective as imiglucerase at reducing anaemia. Vpriv increased the amount of haemoglobin (the protein in red blood cells that carries oxygen) by an average of 1.6 grams per decilitre (from 11.4 g/dl) while imiglucerase increased the amount of haemoglobin by an average of 1.5 g/dl (from 10.6 g/dl). The study also showed that Vpriv is as effective as imiglucerase in controlling other symptoms of Gaucher disease.

What is the risk associated?

In studies, the most common side effects with Vpriv (seen in more than 1 patient in 10) were headache, dizziness, bone pain, arthralgia (joint pain), back pain, infusion-related reactions, asthenia (weakness) or fatigue (tiredness), and pyrexia (fever) or increased body temperature. For the full list of all side effects reported with Vpriv, see the package leaflet.

Vpriv must not be used in people who have a severe allergic reaction to velaglucerase alfa or any of the other ingredients.

Why has it been approved?

The CHMP decided that Vpriv’s benefits are greater than its risks and recommended that it be given marketing authorisation.

Further information

The European Commission granted a marketing authorisation valid throughout the European Union for Vpriv to Shire Pharmaceuticals Ireland Limited on 26 August 2010. The marketing authorisation is valid for five years, after which it can be renewed.

For more information about treatment with Vpriv, read the package leaflet (also part of the EPAR) or contact your doctor or pharmacist.

The summary of the opinion of the Committee for Orphan Medicinal Products for Vpriv is available on the Agency’s website under EMA website/Find medicine/Human medicines/Rare disease designations.

This summary was last updated in 07-2010.

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Name

 

VPRIV 400 Units powder for solution for infusion

 

Composition

 

One vial contains 400 Units* of velaglucerase alfa.
After reconstitution, one ml of the solution contains 100 Units of velaglucerase alfa. *An enzyme unit is defined as the amount of enzyme that is required to convert one micromole of p-nitrophenyl β-D-glucopyranoside to p-nitrophenol per minute at 37ºC.

Velaglucerase alfa is produced in an HT-1080 human fibroblast cell line by recombinant DNA technology.

Excipients:
One vial contains 12.15 mg sodium.

For a full list of excipients, see section 6.1.

 

Pharmaceutical Form

 

Powder for solution for infusion.
White to off-white powder.

 

Are you an Healthcare Professional? Access professional drug leaflets on Diagnosia.com!

 

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