Chronic inflammatory demyelinating polyneuropathy (CIDP)

Active Ingredient: Efgartigimod alfa

Indication for Efgartigimod alfa

Population group: only adults (18 years old or older)
Therapeutic intent: Curative procedure

Efgartigimod alfa is indicated as monotherapy for the treatment of adult patients with progressive or relapsing active chronic inflammatory demyelinating polyneuropathy (CIDP) after prior treatment with corticosteroids or immunoglobulins.

For this indication, competent medicine agencies globally authorize below treatments:

1,000 mg once a week for 3-6 months

For:

Dosage regimens

Subcutaneous, 1,000 milligrams efgartigimod alfa, once weekly, over the duration of 3 to 6 months.

Detailed description

The first 4 injections must be administered either by or under the supervision of a healthcare professional. Subsequent injections should be administered by a healthcare professional or may be administered at home by a patient or caregiver after adequate training in the subcutaneous injection technique.

The recommended dose is 1 000 mg administered subcutaneously as once-weekly injections.

Treatment is initiated with a weekly dose regimen and may be adjusted to every other week based on clinical evaluation. In case of worsening of symptoms, administration of once-weekly injections should be resumed.

For those patients transitioning from their current CIDP therapies, efgartigimod alfa treatment should preferably be initiated before the clinical effect of these prior therapies starts to decrease.

Clinical response is usually achieved within 3 months of initiation of treatment with efgartigimod alfa subcutaneous. Clinical evaluation should be considered 3 to 6 months after treatment initiation to assess the treatment effect and at regular intervals thereafter.

Missed dose

An interval of at least 3 days should be observed between two consecutive administrations. When administrations cannot be done at the scheduled time point, they should be performed as soon as possible and at least 3 days ahead of the following administration. If there are less than 3 days to the next administration, the missed dose should be skipped and the next dose should be administered at the scheduled time point.

Dosage considerations

During the initial administrations of efgartigimod alfa, appropriate treatment for injection and hypersensitivity-related reactions should be readily available. The recommended injection sites (abdomen) should be rotated and injections should never be given into moles, scars, or areas where the skin is tender, bruised, red or hard. The injection may be slowed if the patient experiences discomfort.

Active ingredient

Efgartigimod alfa

Efgartigimod alfa is a human IgG1 antibody fragment engineered for increased affinity to the neonatal Fc Receptor (FcRn). Efgartigimod alfa binds to FcRn, resulting in a reduction in the levels of circulating IgG including pathogenic IgG autoantibodies. Efgartigimod alfa does not affect the levels of other immunoglobulins (IgA, IgD, IgE or IgM), or those of albumin.

Read more about Efgartigimod alfa

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