CAPRELSA®( vandetanib )
Drug CAPRELSA® vandetanib Caprelsa Overview This is a summary of the European public assessment report (EPAR)
Pembrolizumab
This is a summary of the European Public Assessment Report (EPAR) for Vectibix. It explains how the Agency assessed the medicine to recommend its authorisation in the EU and its conditions of use. It is not intended to provide practical advice on how to use Vectibix.
For practical information about using Vectibix, patients should read the package leaflet or contact their doctor or pharmacist.
Vectibix can only be obtained with a prescription. Treatment with Vectibix should be supervised by a doctor who has experience in the use of cancer therapy. It should only be started after the presence of wild-type RAS has been confirmed by an experienced laboratory using a validated test method.
Vectibix is available as a concentrate that is made up into a solution for infusion (drip) into a vein. The recommended dose of Vectibix is 6 mg per kilogram body weight given once every two weeks. The recommended infusion time is approximately 60 minutes, but larger doses may need 90 minutes. The dose may need to be modified if severe skin reactions occur.
The active substance in Vectibix, panitumumab, is a monoclonal antibody, a type of protein that has been designed to attach to and block a target called EGFR on the surface of certain cells, including in some tumours. As a result, these tumour cells can no longer receive the messages transmitted via EGFR that they need to grow and spread to other parts of the body.
Panitumumab does not seem to work against tumour cells that contain mutated (abnormal) RAS genes. This is because growth of these types of cells does not depend on EGFR and they can continue to grow uncontrollably even when EGFR is blocked.
Several bowel cancer studies have shown that Vectibix is effective at prolonging life or slowing disease progression in patients with ‘wild-type’ RAS tumours that have spread. The studies show Vectibix can be effective when used alone and together with the standard chemotherapy regimens FOLFOX (a combination of 5-fluorouracil with folinic acid and the cancer medicine oxaliplatin) or FOLFIRI (5-fluorouracil with folinic acid and a different cancer medicine, irinotecan).
Here are some of the main results from these studies:
The CHMP concluded that Vectibix’s benefits are greater than its risks and recommended that it be given marketing authorisation.
Vectibix was originally given ‘conditional approval’ because there was more evidence to come about the medicine. As the company has supplied the additional information necessary, the authorisation has been switched from conditional to full approval.
The company that markets Vectibix will ensure that all doctors who are expected to prescribe Vectibix are provided with educational material informing them of the importance of carrying out a RAS test before treatment with Vectibix and only using Vectibix in patients whose tumour is confirmed to contain the wild-type RAS gene.
Recommendations and precautions to be followed by healthcare professionals and patients for the safe and effective use of Vectibix have also been included in the summary of product characteristics and the package leaflet.
The European Commission granted a conditional marketing authorisation valid throughout the European Union for Vectibix on 3 December 2007. This was switched to a full marketing authorisation on 15 January 2015.
For more information about treatment with Vectibix, read the package leaflet (also part of the EPAR) or contact your doctor or pharmacist.
In studies, 93% of the patients receiving Vectibix had side effects affecting the skin, although most of these were mild or moderate. The most common side effects with Vectibix (seen in more than 2 patients in 10) were diarrhoea, nausea (feeling sick), vomiting, constipation, abdominal pain (stomach ache), fatigue (tiredness), pyrexia (fever), lack of appetite, paronychia (nail bed infection), rash, acneiform dermatitis (skin inflammation resembling acne), pruritus (itching), erythema (reddening of the skin) and dry skin.
Vectibix must not be used in patients who have had a severe or life-threatening hypersensitivity (allergic) reaction to panitumumab or any of the other ingredients in the past. It must not be used in patients with interstitial pneumonitis or pulmonary fibrosis (lung diseases). Vectibix must not be used with oxaliplatin-containing chemotherapy in patients whose tumour contains the mutated RAS gene or for whom the RAS status is not known.
Owner of copyright and other intellectual property rights to European Medicines Agency
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