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Orphan designation

Please note that this product was withdrawn from the Community Register of designated Orphan Medicinal Products in July 2015 on request of the sponsor.

On 1 October 2010, orphan designation (EU/3/10/797) was granted by the European Commission to Glaxo Group Limited, United Kingdom, for recombinant humanised monoclonal antibody to human Nogo-A protein of the IgG1/kappa class for the treatment of amyotrophic lateral sclerosis.

What is amyotrophic lateral sclerosis?

Amyotrophic lateral sclerosis (ALS) is a progressive disease of the nervous system, where nerve cells in the brain and spinal cord that control voluntary movement gradually deteriorate. This causes the muscles under their control to weaken and waste away, leading to paralysis. The symptoms of ALS vary from patient to patient, depending on which muscles weaken first, and include tripping up, falling over, loss of control of hand and arm movement, difficulty speaking, swallowing and breathing, persistent tiredness, twitching and cramping. ALS usually starts in mid-life. Men are about one-and-a-half times more likely to develop the disease than women.

ALS is a debilitating and life-threatening disease because of the gradual loss of muscle function and its effect on muscles used for breathing.

What is the estimated number of patients affected by the condition?

At the time of designation, ALS affected less than 1 in 10,000 people in the European Union (EU)*. This is equivalent to a total of fewer than 51,000 people, and is below the threshold for orphan designation, which is 5 people in 10,000. This is based on the information provided by the sponsor and the knowledge of the Committee for Orphan Medicinal Products (COMP).

*Disclaimer: For the purpose of the designation, the number of patients affected by the condition is estimated and assessed on the basis of data from the European Union (EU 27), Norway, Iceland and Liechtenstein. This represents a population of 506,500,000 (Eurostat 2010).

What treatments are available?

At the time of designation, there was one medicine called riluzole authorised for ALS in the EU.

The sponsor has provided sufficient information to show that the medicine ‘recombinant humanised monoclonal antibody to human Nogo-A protein of the IgG1/kappa class’ might be of significant benefit for patients with ALS because it works in a different way to the existing treatment and early studies in experimental models show that it might improve the outcome of patients with this condition. These assumptions will need to be confirmed at the time of marketing authorisation, in order to maintain the orphan status.

How is this medicine expected to work?

This medicine is a monoclonal antibody (a type of protein) that has been designed to recognise and attach to a protein called Nogo-A. Nogo-A acts on nerve cells to block the growth of nerve endings. Nogo-A is found in increased amounts in the muscles of patients with ALS, where it plays a role in the loss of muscle function. By attaching to Nogo-A, the medicine is expected to block its activity, helping to delay the onset of the symptoms of the disease.

What is the stage of development of this medicine?

The effects of recombinant humanised monoclonal antibody to human Nogo-A protein of the IgG1/kappa class have been evaluated in experimental models.

At the time of submission of the application for orphan designation, clinical trials with the medicine in patients with ALS were ongoing.

At the time of submission, this medicine was not authorised anywhere in the EU for ALS. Orphan designation of the medicine had been granted in the United States of America for this condition.

In accordance with Regulation (EC) No 141/2000 of 16 December 1999, the COMP adopted a positive opinion on 8 July 2010 recommending the granting of this designation.

Opinions on orphan medicinal product designations are based on the following three criteria:
  • the seriousness of the condition;
  • the existence of alternative methods of diagnosis, prevention or treatment; 
  • either the rarity of the condition (affecting not more than 5 in 10,000 people in the EU) or insufficient returns on investment.

Designated orphan medicinal products are products that are still under investigation and are considered for orphan designation on the basis of potential activity. An orphan designation is not a marketing authorisation. As a consequence, demonstration of quality, safety and efficacy is necessary before a product can be granted a marketing authorisation.

Key facts

Product details for <p>Recombinant humanised monoclonal antibody to human Nogo-A protein of the IgG1/kappa class</p>
Active substanceRecombinant humanised monoclonal antibody to human Nogo-A protein of the IgG1/kappa class
Medicine Name
Disease/conditionTreatment of amyotrophic lateral sclerosis
Date of decision01/10/2010
Orphan decision numberEU/3/10/797

Review of designation

The Committee for Orphan Medicinal Products reviews the orphan designation of a product if it is approved for marketing authorisation.

Sponsor’s contact details

Glaxo Group Limited
980 Great West Road
Middlesex TW8 9GS
United Kingdom
Tel. +44 (0)20 8047 2700

Patients' organisations

For contact details of patients’ organisations whose activities are targeted at rare diseases, see:

  • Orphanet, a database containing information on rare diseases which includes a directory of patients’ organisations registered in Europe.
  • European Organisation for Rare Diseases (EURORDIS), a non-governmental alliance of patient organisations and individuals active in the field of rare diseases.