Mecasermin

Insulin Like Growth Factor 1 (IGF 1) AnalogRx: PrescriptionCompound: Approved

Also known as: Increlex, IPLEX, Mecasermin, Mecasermin rinfabate, recombinant human IGF-1, rhIGF-1

Educational Only — Not medical advice. Consult a qualified clinician before using any peptide.

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Summary

Recombinant human IGF-1 (mecasermin) indicated for treatment of growth failure in children with severe primary IGF-1 deficiency or GH gene deletion.

Mechanism of Action

Mimics endogenous IGF-1, binding IGF-1 receptor to activate intracellular signaling pathways that promote cell proliferation, differentiation, and linear growth.

Routes of Administration

Subcutaneous

Goals & Uses

  • Muscle growth / anabolic effectsBody CompositionLow
  • Increase linear growthEfficacyHigh
  • Treatment of severe primary IGF-1 deficiency (SPIGFD)Growth DisorderHigh
  • Improvement of insulin sensitivity / glucose metabolismMetabolicModerate
  • Normalize IGF-1 serum levelsBiomarkerModerate
  • Amyotrophic lateral sclerosis (ALS) treatmentNeurologicalLow
  • Growth promotion in GH gene deletion with anti-GH antibodiesGrowth DisorderHigh

Contraindications

  • Active malignancyOncologyHighUse caution or avoid depending on agent and context
  • Hypersensitivity to mecasermin or excipientsAllergic/ImmunologicHigh
  • Closed epiphysesSkeletalModerate
  • Diabetic retinopathyOphthalmologyModerate
  • Intravenous administrationRoute Of AdministrationHigh
  • Active or suspected neoplasiaOncologicalHigh

Adverse Effects

  • HypoglycemiaMetabolicCommonAbnormally low blood glucose
  • Injection site reactionsLocalCommon
  • Acromegaloid featuresEndocrine/MusculoskeletalUncommon
  • Intracranial hypertensionNeurologicalRare
  • LipohypertrophyDermatologicUncommon
  • Slipped capital femoral epiphysisMusculoskeletalUncommon
  • Tonsillar/adenoid hypertrophyENTCommon

Drug Interactions

  • InsulinHighMay increase risk of low blood sugar
  • Growth hormone therapyModerate
  • Insulin or insulin secretagoguesHigh
  • CorticosteroidsModerate
  • Growth hormoneModerate
  • Oral antidiabetic agents (sulfonylureas, etc.)Moderate

Population Constraints

  • Patients with active cancerOncologicalAbsolute
  • Neonates / infants < 2 yearsPediatricRelative
  • Pregnant or breastfeeding womenReproductiveRelative
  • Patients with scoliosisMusculoskeletalRelative
  • Children with severe primary IGF-1 deficiencyPediatricAbsolute
  • Diabetic PatientsMetabolicRelative

Regulatory Status

  • European UnionApprovedApproved: Primary IGF-1 deficiencyEMA approval for pediatric patients.
  • United StatesApprovedApproved: Growth failure due to primary IGF-1 deficiency, Growth failure due to GH gene deletionFDA label includes pediatric use up to 18 years.
  • United KingdomApprovedApproved: Long-term treatment of growth failure in children and adolescents with severe primary IGF-1 deficiencyApproved via EMA pre-Brexit; recognized in UK. Subject to MHRA oversight post-Brexit.

FDA‑approved (US) as Increlex for pediatric growth disorders; also approved in the EU and other jurisdictions.

Evidence & Sources

No sources recorded yet.

Frequently Asked Questions

What is Mecasermin?

Recombinant human IGF-1 (mecasermin) indicated for treatment of growth failure in children with severe primary IGF-1 deficiency or GH gene deletion.

What is Mecasermin used for?

Mecasermin is educationally associated with: Muscle growth / anabolic effects, Increase linear growth, Treatment of severe primary IGF-1 deficiency (SPIGFD), Improvement of insulin sensitivity / glucose metabolism, Normalize IGF-1 serum levels, Amyotrophic lateral sclerosis (ALS) treatment, Growth promotion in GH gene deletion with anti-GH antibodies. Educational only — not medical advice.

How is Mecasermin administered?

Recorded routes of administration: Subcutaneous.

What are the potential side effects of Mecasermin?

Reported adverse effects include: Hypoglycemia, Injection site reactions, Acromegaloid features, Intracranial hypertension, Lipohypertrophy, Slipped capital femoral epiphysis, Tonsillar/adenoid hypertrophy. This list is not exhaustive — consult a qualified clinician.

Who should avoid Mecasermin?

Recorded contraindications: Active malignancy, Hypersensitivity to mecasermin or excipients, Closed epiphyses, Diabetic retinopathy, Intravenous administration, Active or suspected neoplasia. Consult a qualified clinician before use.