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Mecasermin (Increlex)
Recombinant human IGF-1 for severe primary IGF-1 deficiency.
Plain-Language Label Highlights
Brand names: Increlex
Severe primary IGF-1 deficiency in children and GH gene deletion with anti-GH antibodies.
A twice-daily injection of recombinant IGF-1 — given with a meal — that supports growth in children whose bodies don't make IGF-1.
- •Hypoglycemia (must take with food)
- •Tonsillar hypertrophy / snoring
- •Injection-site lipohypertrophy
- •Ear infections
- •Severe hypoglycemia
- •Intracranial hypertension
- •Tonsillar enlargement leading to sleep apnea
- •Theoretical increase in benign and malignant neoplasms
- •Active or suspected cancer
- •Closed epiphyses (when used for growth)
- •Allergy to mecasermin
Educational summary of the FDA prescribing information. Not a substitute for the full label or medical advice. Always discuss with a licensed prescriber.
Mechanism of Action
Recombinant human insulin-like growth factor-1 (rhIGF-1) that binds IGF-1 receptors to promote linear growth in children with severe primary IGF-1 deficiency or GH gene deletion with anti-GH antibodies.
Research Areas
Common Research Protocols
0.04–0.12 mg/kg SC twice daily, given with a meal/snack.
Protocols summarized for educational reference from published research. Not dosing guidance.
Cited Research
Mecasermin in severe primary IGFD
Improved height velocity over multi-year follow-up.
Important Considerations
- •FDA-approved.
- •Hypoglycemia — must be taken with food.
- •Tonsillar hypertrophy, intracranial hypertension reported.
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All content on this page is for educational and informational purposes only. It is not medical advice, diagnosis, or treatment. We make no claims that any peptide can diagnose, treat, cure, or prevent any disease. Peptides discussed are not FDA-approved for the indications listed unless explicitly stated otherwise.
Always consult a licensed healthcare provider before beginning any wellness protocol. Statements have not been evaluated by the FDA. Compounded preparations are subject to applicable state and federal regulations. Availability, eligibility, and pricing may vary.
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