Standard Dosing Schedule for Children on Cosentyx
Cosentyx (secukinumab) is approved for children aged 6 and older weighing at least 50 kg (about 110 lbs) for moderate to severe plaque psoriasis. The recommended dose is 300 mg via subcutaneous injection once every 4 weeks after initial loading doses of 300 mg at weeks 0, 1, 2, and 3.[1][2]
For children 2 years and older weighing 15-50 kg with moderate to severe plaque psoriasis or active enthesitis-related arthritis, dosing is weight-based: 75 mg or 150 mg every 4 weeks following loading doses at weeks 0, 1, 2, and 3.[1][2]
How Dosing Differs by Weight and Condition
- Psoriasis (6+ years, ≥50 kg): 300 mg every 4 weeks.
- **Psoriasis (2-11 years, 15-<50 kg)**: 75 mg (15-<35 kg) or 150 mg (35-<50 kg) every 4 weeks.
- Enthesitis-related arthritis (2+ years): Same weight-based as above, every 4 weeks.
Doses use pre-filled syringes or pens matched to weight. No adjustments for renal/hepatic impairment in kids.[1][2]
What Happens During Loading Phase
Loading doses build drug levels quickly: given weekly for the first month (weeks 0, 1, 2, 3), then maintenance every 4 weeks. Skipping doses may reduce efficacy; consult a doctor for missed injections.[1]
Differences from Adult Dosing
Adults typically get 300 mg every 4 weeks for psoriasis, matching kids ≥50 kg. Lighter children use lower doses to minimize exposure while maintaining effect.[1][2]
Common Parent Questions on Administration
Parents often ask about injection sites (thigh, abdomen, upper arm) and rotation to avoid irritation. Refrigerate pens/syringes; let warm to room temp before use. Full training from healthcare providers is required.[1]
[1]: Cosentyx Prescribing Information (Novartis, 2024)
[2]: FDA Label for Cosentyx (Secukinumab)