The short version
In growth-restricted fetal sheep, a one-week infusion did not improve fetal growth. The fetal-sheep setting is unlike adult fitness use; the negative growth result should not be omitted.
An investigational profile is not an endorsement or a finding of safety.
Names you may see
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- IGF-1 LR3
- Entry name · The name used for this encyclopedia topic.
- Receptor Grade IGF-1 LR3
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Things worth checking
What does this source leave unanswered?
The fetal-sheep setting is unlike adult fitness use; the negative growth result should not be omitted.
Limits of the selected research · Selected original research abstract ↗
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Clinical research
The selected source concerns laboratory or animal work. It is not a human clinical efficacy study.
Research terms in everyday language ↗
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A closer look
- Classification
- A modified IGF-1 research analogue whose actions cannot be assumed identical to standard IGF-1 products.
- Name variations
- Names you may see and important distinctions
- Source type
- Original research · published abstract
- Reference jurisdiction
- Research setting; approval status is product- and country-specific
Interpret the source in the context of the preparation and route it discusses. A regulatory notice and a controlled clinical trial answer different questions.
IGF-1 LR3 does not promote growth in late-gestation growth-restricted fetal sheep.
In growth-restricted fetal sheep, a one-week infusion did not improve fetal growth. The fetal-sheep setting is unlike adult fitness use; the negative growth result should not be omitted.
Read the original paper ↗This first design edition reserves space for study-by-study summaries, definitions, and technical references as each profile receives editorial review.
Go to the source
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Source reference · Checked 8 November 2026 · Opens in a new tab
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