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| Attribute | IGF Analog IGF-1 LR3 |
|---|---|
| Summary | Long-acting IGF-1 analog — anabolic but raises systemic IGF-1 markedly. |
| Mechanism | Modified IGF-1 with reduced IGFBP binding, dramatically extending half-life. |
| Top outcomes |
|
| Evidence | emerging |
| Half-life | ~20-30 hours |
| Administration | subq |
| Legal status | research only |
| Safety | Hypoglycemia risk; theoretical cancer risk from sustained IGF-1 elevation. |