Paroxysmal nocturnal hemoglobinuria

Active Ingredient: Crovalimab

Indication for Crovalimab

Population group: only adolescents (12 years - 18 years old) , adults (18 years old or older)
Therapeutic intent: Curative procedure

Crovalimab as monotherapy is indicated for the treatment of adult and paediatric patients 12 years of age or older with a weight of 40 kg and above with paroxysmal nocturnal haemoglobinuria (PNH):

  • In patients with haemolysis with clinical symptom(s) indicative of high disease activity.
  • In patients who are clinically stable after having been treated with a complement component 5 (C5) inhibitor for at least the past 6 months.

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

One loading dose administered by intravenous infusion on Day 1, followed by four additional loading doses administered by subcutaneous injection on Days 2, 8, 15, and 22, and thereafter maintenance doses administered by subcutaneous injection on Day 29 and every 4 weeks

For:

Dosage regimens

Regimen A: In case that patient weight is ≥ 40 kg and patient weight is ≤ 100 kg, intravenous, 1,000 milligrams crovalimab, one dose, over the duration of 1 day. Afterwards, in case that patient weight is ≥ 40 kg and patient weight is ≤ 100 kg, subcutaneous, 340 milligrams crovalimab, once every 7 days, 4 doses in total. Afterwards, in case that patient weight is ≥ 40 kg and patient weight is ≤ 100 kg, subcutaneous, 680 milligrams crovalimab, once every 4 weeks.

Regimen B: In case that patient weight is ≥ 100 kg, intravenous, 1,500 milligrams crovalimab, one dose, over the duration of 1 day. Afterwards, in case that patient weight is ≥ 100 kg, subcutaneous, 340 milligrams crovalimab, once every 7 days, 4 doses in total. Afterwards, in case that patient weight is ≥ 100 kg, subcutaneous, 1,020 milligrams crovalimab, once every 4 weeks.

Detailed description

The recommended dosing regimen consists of one loading dose administered by intravenous infusion (on Day 1), followed by four additional weekly loading doses administered by subcutaneous injection (on Days 2, 8, 15, and 22). The maintenance dose starts on Day 29 and is then administered every 4 weeks by subcutaneous injection. The doses to be administered are based on the patient’s body weight, as shown in Table 1.

For patients switching from treatment with another complement inhibitor, the first intravenous loading dose of Piasky should be administered at the time of the next scheduled complement inhibitor administration. The administration of the additional subcutaneous loading doses and maintenance doses of Piasky will follow as per the schedule shown in Table 1.

Table 1. Piasky dosing regimen based on body weight:

Body weight≥40 kg to <100 kg≥100 kg
Loading Dose
Day 1
Day 2, 8, 15, 22
1 000 mg (intravenous)
340 mg (subcutaneous)
1 500 mg (intravenous)
340 mg (subcutaneous)
Maintenance dose
Day 29 and Q4Wa thereafter 680 mg (subcutaneous) 1 020 mg (subcutaneous)

a Q4W=every 4 weeks

The dosing schedule is allowed to occasionally vary within 2 days of the scheduled administration day (except at Day 1 and Day 2). If this occurs, the subsequent dose should be administered according to the regular schedule.

Duration of treatment

Piasky is intended for long-term treatment unless the discontinuation of this medicinal product is clinically indicated.

Delayed or missed doses

If an entire planned dose or part of a planned dose of Piasky is missed, the missing dose or remainder of the planned dose should be administered as soon as possible before the day of the next scheduled dose. The next dose should then be administered on the regular scheduled dosing day. Do not take two doses or administer more than the prescribed dose on the same day to make up for a missed dose.

Dose modifications

Modification of the maintenance dose is required if the patient’s body weight changes by 10% or more to become consistently greater than or lower than 100 kg during the course of treatment (see Table 1 for recommended dose). Accordingly, the patient’s body weight should be monitored periodically and on an ongoing basis, as appropriate.

Dosage considerations

Crovalimab is administered as an intravenous infusion (first dose) and as a subcutaneous injection (subsequent doses).

Intravenous administration

Crovalimab should not be administered as an intravenous push or bolus.

The infusion of crovalimab may be slowed or interrupted if the patient develops an infusion related reaction. The infusion should be discontinued immediately if the patient experiences a serious hypersensitivity reaction.

Subcutaneous administration

It is recommended to inject crovalimab into the abdomen. Within the abdomen, injection sites should be rotated with every injection. Injections should never be given into moles, scars, or areas where the skin is tender, bruised, red, hard, or not intact.

Active ingredient

Crovalimab

Crovalimab is a recombinant humanised immunoglobulin G1 (IgG1)-based monoclonal antibody that specifically binds with high affinity to component 5 (C5) of the complement system, inhibiting its cleavage into C5a and C5b and thus preventing the formation of the membrane attack complex (MAC). Crovalimab causes terminal complement activity inhibition. In patients with PNH, crovalimab inhibits terminal complement-mediated intravascular haemolysis.

Read more about Crovalimab

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